@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:ital,wght@0,400;0,500;0,600;1,400&family=Noto+Sans+Tamil:wght@700;800&display=swap');
/* IMPORTANT: Disable ALL font ligatures so C operators like <=, >=, !=, == display correctly */
.editor-textarea,.editor-gutter,pre.code-pre,.tc-io,.output-tc-col,.fmt-table td,.err-msg,code{
  font-variant-ligatures:none;
  font-feature-settings:'liga' 0,'calt' 0,'dlig' 0,'hlig' 0;
  -webkit-font-feature-settings:'liga' 0,'calt' 0;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#070a12;--bg2:#0e1424;--card:rgba(18,25,42,0.52);--card-hover:rgba(26,36,60,0.65);
  --primary:#3b82f6;--primary-dark:#2563eb;--primary-glow:rgba(59,130,246,.25);
  --accent:#10b981;--accent-dark:#059669;
  --warn:#f59e0b;--warn-bg:rgba(245,158,11,.12);
  --text:#f1f5f9;--text2:#94a3b8;--text3:#64748b;--border:rgba(255,255,255,0.1);
  --border-hover:rgba(255,255,255,0.22);
  --glass-bg:rgba(18,25,42,0.52);--glass-bg-hover:rgba(26,36,60,0.65);
  --glass-border:rgba(255,255,255,0.12);
  --glass-specular:inset 0 1px 1px 0 rgba(255,255,255,0.22);
  --glass-specular-hover:inset 0 1px 2px 0 rgba(255,255,255,0.38);
  --glass-shadow:0 16px 36px -8px rgba(0,0,0,0.55),0 0 1px 1px rgba(255,255,255,0.05);
  --glass-blur:blur(28px) saturate(190%);
  --code-bg:rgba(12,17,28,0.72);--code-text:#e2e8f0;
  --pass:#22c55e;--pass-bg:rgba(34,197,94,.12);
  --fail:#ef4444;--fail-bg:rgba(239,68,68,.12);
  --num-bg:rgba(59,130,246,.15);--num-color:#60a5fa;--section-label:#94a3b8;
  --radius:16px;--shadow:0 16px 36px -8px rgba(0,0,0,.55);
  --keyword:#ff7b72;--string:#a5d6ff;--comment:#8b949e;
  --number-color:#79c0ff;--type-color:#ffa657;--func-color:#d2a8ff;
}
html,body{height:100%;font-family:'Inter',sans-serif;background:radial-gradient(at 0% 0%,#0d1627 0px,transparent 55%),radial-gradient(at 100% 100%,#111a33 0px,transparent 55%),#070a12;color:var(--text);-webkit-font-smoothing:antialiased;overflow:hidden;touch-action:manipulation;position:relative}
.screen{display:none;position:fixed;inset:0;flex-direction:column;background:transparent;overflow:hidden;z-index:10;perspective:1200px;transform-origin:center center}
.screen.active{display:flex;animation:screenConvergeZoom .38s cubic-bezier(0.16,1,0.3,1) both;will-change:transform,opacity,filter}
.screen.active.screen-diverge{animation:screenDivergeZoom .34s cubic-bezier(0.16,1,0.3,1) both}

@keyframes screenConvergeZoom{
  0%{opacity:0;transform:scale(0.92) translateY(14px) translateZ(-35px);filter:blur(8px)}
  60%{filter:blur(0)}
  100%{opacity:1;transform:scale(1) translateY(0) translateZ(0);filter:blur(0)}
}
@keyframes screenDivergeZoom{
  0%{opacity:0;transform:scale(1.08) translateY(-10px) translateZ(35px);filter:blur(8px)}
  60%{filter:blur(0)}
  100%{opacity:1;transform:scale(1) translateY(0) translateZ(0);filter:blur(0)}
}

/* ================================================================
   AMBIENT MOTION MESH & CHROMATIC ORBS (VISIONOS / FRAMER GLASS)
   ================================================================ */
.ambient-mesh{position:fixed;inset:0;pointer-events:none;z-index:1;overflow:hidden;opacity:.85}
.ambient-orb{position:absolute;border-radius:50%;filter:blur(85px);-webkit-filter:blur(85px);will-change:transform;mix-blend-mode:screen}
.ambient-orb.orb-1{width:520px;height:520px;top:-140px;left:-120px;background:radial-gradient(circle,rgba(0,210,255,.42) 0%,rgba(59,130,246,.22) 50%,transparent 75%);animation:ambientFloat1 24s ease-in-out infinite alternate}
.ambient-orb.orb-2{width:560px;height:560px;top:25%;right:-160px;background:radial-gradient(circle,rgba(168,85,247,.38) 0%,rgba(236,72,153,.2) 50%,transparent 75%);animation:ambientFloat2 28s ease-in-out infinite alternate}
.ambient-orb.orb-3{width:500px;height:500px;bottom:5%;left:-80px;background:radial-gradient(circle,rgba(16,185,129,.32) 0%,rgba(6,182,212,.18) 50%,transparent 75%);animation:ambientFloat3 22s ease-in-out infinite alternate}
.ambient-orb.orb-4{width:480px;height:480px;bottom:-120px;right:15%;background:radial-gradient(circle,rgba(244,63,94,.28) 0%,rgba(99,102,241,.2) 50%,transparent 75%);animation:ambientFloat4 26s ease-in-out infinite alternate}
@keyframes ambientFloat1{0%{transform:translate3d(0,0,0) scale(1) rotate(0deg)}50%{transform:translate3d(60px,80px,0) scale(1.12) rotate(10deg)}100%{transform:translate3d(-40px,50px,0) scale(0.94) rotate(-8deg)}}
@keyframes ambientFloat2{0%{transform:translate3d(0,0,0) scale(1) rotate(0deg)}50%{transform:translate3d(-70px,-50px,0) scale(1.15) rotate(-12deg)}100%{transform:translate3d(30px,70px,0) scale(0.92) rotate(8deg)}}
@keyframes ambientFloat3{0%{transform:translate3d(0,0,0) scale(1) rotate(0deg)}50%{transform:translate3d(80px,-40px,0) scale(1.1) rotate(12deg)}100%{transform:translate3d(-50px,-30px,0) scale(0.96) rotate(-10deg)}}
@keyframes ambientFloat4{0%{transform:translate3d(0,0,0) scale(1) rotate(0deg)}50%{transform:translate3d(-60px,60px,0) scale(1.14) rotate(-14deg)}100%{transform:translate3d(50px,-40px,0) scale(0.9) rotate(6deg)}}

/* Home Scroll Container & Header */
.home-scroll-container{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;display:flex;flex-direction:column}
.home-header{background:linear-gradient(180deg,rgba(20,30,52,0.65) 0%,rgba(11,17,30,0.45) 100%);backdrop-filter:blur(28px) saturate(190%);-webkit-backdrop-filter:blur(28px) saturate(190%);padding:48px 24px 32px;text-align:center;flex-shrink:0;border-bottom:1px solid rgba(255,255,255,.12);position:relative;overflow:hidden;box-shadow:0 12px 32px -8px rgba(0,0,0,.4),inset 0 1px 1px 0 rgba(255,255,255,.18)}
.home-header::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 50% 0%,rgba(59,130,246,.3) 0%,transparent 65%)}
.home-header h1{font-size:30px;font-weight:800;color:#fff;letter-spacing:-.5px;position:relative;text-shadow:0 0 35px rgba(59,130,246,.5)}
.home-header .subtitle{font-size:14px;color:rgba(255,255,255,.55);margin-top:6px;position:relative}
.home-header .badge{display:inline-block;margin-top:12px;padding:4px 14px;background:rgba(59,130,246,.18);border:1px solid rgba(96,165,250,.4);border-radius:20px;font-size:11px;color:#93c5fd;font-weight:700;letter-spacing:.5px;position:relative;box-shadow:0 0 14px rgba(59,130,246,.25)}

/* Topic Cards */
.topic-list{padding:0 16px 36px;display:flex;flex-direction:column;gap:12px}
.topic-card,
.important-topic-card,
.abs-topic-card,
.workbook-topic-card,
.pattern-topic-card,
.looping-topic-card,
.array-topic-card,
.string-topic-card{display:flex;align-items:center;background:rgba(18,25,42,0.52);backdrop-filter:blur(28px) saturate(190%);-webkit-backdrop-filter:blur(28px) saturate(190%);border-radius:var(--radius);padding:18px 18px;box-shadow:0 16px 36px -8px rgba(0,0,0,0.55),inset 0 1px 1px 0 rgba(255,255,255,0.2);cursor:pointer;border:1px solid rgba(255,255,255,0.12);gap:14px;transition:all .25s cubic-bezier(0.16,1,0.3,1);-webkit-tap-highlight-color:transparent}
.topic-card:hover,
.important-topic-card:hover,
.abs-topic-card:hover,
.workbook-topic-card:hover,
.pattern-topic-card:hover,
.looping-topic-card:hover,
.array-topic-card:hover,
.string-topic-card:hover{background:rgba(26,36,60,0.65);border-color:rgba(96,165,250,.5);transform:translateY(-2px) scale(1.008);box-shadow:0 18px 36px -8px rgba(0,0,0,0.6),0 0 24px rgba(59,130,246,0.22),inset 0 1px 2px 0 rgba(255,255,255,0.35)}
.topic-card:active,
.important-topic-card:active,
.abs-topic-card:active,
.workbook-topic-card:active,
.pattern-topic-card:active,
.looping-topic-card:active,
.array-topic-card:active,
.string-topic-card:active{transform:scale(.98);box-shadow:0 6px 18px rgba(0,0,0,.45)}
.topic-num,
.looping-num,
.important-num,
.abs-num,
.workbook-num,
.pattern-num,
.array-num,
.string-num{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,rgba(59,130,246,.25),rgba(6,182,212,.2));color:#60a5fa;font-size:15px;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0;border:1px solid rgba(96,165,250,.45);font-family:'Inter',sans-serif;box-shadow:0 0 16px rgba(59,130,246,.3),inset 0 1px 1px rgba(255,255,255,.2)}
.topic-name{flex:1;font-size:16px;font-weight:600;color:var(--text);letter-spacing:-.2px}
.topic-count{display:none}
.arrow{font-size:20px;color:var(--text3);margin-left:2px}

/* Topbar */
.topbar{display:flex;align-items:center;background:rgba(14,20,34,0.68);backdrop-filter:blur(28px) saturate(190%);-webkit-backdrop-filter:blur(28px) saturate(190%);padding:12px 16px;gap:10px;flex-shrink:0;min-height:56px;border-bottom:1px solid rgba(255,255,255,0.12);position:relative;z-index:20;box-shadow:0 8px 24px -4px rgba(0,0,0,0.4),inset 0 1px 1px 0 rgba(255,255,255,0.15)}
.back-btn{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);cursor:pointer;font-size:13px;font-weight:600;color:var(--text);line-height:1.2;padding:7px 14px;border-radius:10px;-webkit-tap-highlight-color:transparent;transition:all .2s cubic-bezier(0.16,1,0.3,1);box-shadow:inset 0 1px 1px rgba(255,255,255,.12)}
.back-btn:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.25);transform:translateX(-1px)}
.back-btn:active{transform:scale(.96)}
.topbar-title{font-size:16px;font-weight:700;color:var(--text);flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;letter-spacing:-.2px}
.topbar-nav-group{display:flex;align-items:center;gap:6px;margin-left:auto}
.topbar-nav-btn{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);color:#cbd5e1;font-size:15px;font-weight:700;width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s cubic-bezier(0.16,1,0.3,1);-webkit-tap-highlight-color:transparent;box-shadow:inset 0 1px 1px rgba(255,255,255,.12)}
.topbar-nav-btn:hover:not(:disabled){background:rgba(59,130,246,.28);color:#93c5fd;border-color:rgba(96,165,250,.55);transform:scale(1.06)}
.topbar-nav-btn:disabled{opacity:.25;cursor:not-allowed}

/* ================================================================
   SEARCH BARS & GLOBAL QUESTION FINDER (FROSTED GLASS UI)
   ================================================================ */
.q-search-wrap{padding:10px 16px;background:rgba(18,25,42,0.65);backdrop-filter:blur(24px) saturate(180%);-webkit-backdrop-filter:blur(24px) saturate(180%);border-bottom:1px solid rgba(255,255,255,0.08);display:flex;flex-direction:column;gap:8px;flex-shrink:0}
.q-search-box{position:relative;display:flex;align-items:center;background:rgba(10,15,26,0.6);border:1px solid rgba(255,255,255,0.12);border-radius:12px;padding:2px 12px;transition:all .25s cubic-bezier(0.16,1,0.3,1);box-shadow:inset 0 1px 2px rgba(0,0,0,0.4)}
.q-search-box:focus-within{border-color:rgba(56,189,248,0.6);background:rgba(15,23,42,0.85);box-shadow:0 0 16px rgba(56,189,248,0.25),inset 0 1px 2px rgba(0,0,0,0.3)}
.search-svg-icon{width:16px;height:16px;color:#94a3b8;flex-shrink:0;margin-right:8px;transition:color .2s}
.q-search-box:focus-within .search-svg-icon{color:#38bdf8}
.q-search-input{flex:1;background:transparent;border:none;outline:none;color:#f1f5f9;font-size:13px;padding:8px 0;font-family:'Inter',sans-serif}
.q-search-input::placeholder{color:#64748b;font-size:12.5px}
.search-clear-btn{background:rgba(255,255,255,0.1);border:none;color:#cbd5e1;font-size:16px;line-height:1;width:22px;height:22px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;flex-shrink:0}
.search-clear-btn:hover{background:rgba(239,68,68,0.25);color:#fca5a5;transform:scale(1.1)}
.q-search-counter{font-size:11px;font-weight:700;color:#38bdf8;padding-left:4px;letter-spacing:.3px}

/* Home Screen Global Search */
.home-search-wrap{padding:4px 16px 16px;max-width:1200px;width:100%;margin:0 auto}
.home-search-box{position:relative;display:flex;align-items:center;background:rgba(18,25,42,0.58);backdrop-filter:blur(24px) saturate(190%);-webkit-backdrop-filter:blur(24px) saturate(190%);border:1px solid rgba(255,255,255,0.12);border-radius:14px;padding:4px 14px;box-shadow:0 12px 28px -6px rgba(0,0,0,0.4),inset 0 1px 1px rgba(255,255,255,0.15);transition:all .25s cubic-bezier(0.16,1,0.3,1)}
.home-search-box:focus-within{border-color:rgba(56,189,248,0.65);background:rgba(26,36,60,0.72);box-shadow:0 16px 36px -8px rgba(0,0,0,0.6),0 0 24px rgba(56,189,248,0.25),inset 0 1px 2px rgba(255,255,255,0.25)}
.home-search-input{flex:1;background:transparent;border:none;outline:none;color:#f8fafc;font-size:13.5px;padding:9px 0;font-family:'Inter',sans-serif}
.home-search-input::placeholder{color:#64748b;font-size:13px}
.global-search-results{margin-top:12px;background:rgba(14,20,34,0.85);backdrop-filter:blur(28px) saturate(190%);-webkit-backdrop-filter:blur(28px) saturate(190%);border:1px solid rgba(255,255,255,0.12);border-radius:16px;padding:14px;display:flex;flex-direction:column;gap:10px;box-shadow:0 18px 40px -8px rgba(0,0,0,0.65),inset 0 1px 1px rgba(255,255,255,0.18);max-height:480px;overflow-y:auto;animation:qItemCascade .3s cubic-bezier(0.16,1,0.3,1) both}
.global-search-header{font-size:11px;font-weight:800;letter-spacing:.8px;text-transform:uppercase;color:#94a3b8;padding-bottom:6px;border-bottom:1px solid rgba(255,255,255,0.08);display:flex;align-items:center;justify-content:space-between}
.global-search-header-badge{background:rgba(59,130,246,0.2);color:#93c5fd;padding:2px 8px;border-radius:10px;font-size:10.5px}
.global-search-item{background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.08);border-radius:12px;padding:12px 14px;cursor:pointer;display:flex;flex-direction:column;gap:6px;transition:all .2s cubic-bezier(0.16,1,0.3,1)}
.global-search-item:hover{background:rgba(59,130,246,0.12);border-color:rgba(96,165,250,0.45);transform:translateX(3px)}
.global-item-meta{display:flex;align-items:center;gap:8px}
.global-topic-pill{font-size:10px;font-weight:700;padding:2px 8px;border-radius:6px;background:rgba(59,130,246,0.18);color:#60a5fa;border:1px solid rgba(59,130,246,0.35)}
.global-qnum{font-size:10px;font-weight:700;color:#94a3b8;font-family:'JetBrains Mono',monospace}
.global-item-title{font-size:13.5px;font-weight:600;color:#f1f5f9;line-height:1.4}

/* Empty Search State */
.search-empty-state{padding:36px 20px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:10px}
.search-empty-icon{font-size:32px;opacity:.6}
.search-empty-title{font-size:14px;font-weight:700;color:#f1f5f9}
.search-empty-subtitle{font-size:12px;color:#94a3b8;max-width:320px;line-height:1.45}
.search-empty-clear-btn{margin-top:6px;background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff;border:none;border-radius:8px;padding:6px 16px;font-size:12px;font-weight:700;cursor:pointer;transition:all .2s}
.search-empty-clear-btn:hover{background:linear-gradient(135deg,#60a5fa,#3b82f6);transform:scale(1.04)}

/* Text Highlighter */
.q-highlight{background:rgba(245,158,11,0.28);color:#fbbf24;border-radius:3px;padding:1px 3px;font-weight:700;border:1px solid rgba(245,158,11,0.45)}

/* Question List & Animated Item Cascade */
.q-list{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:16px;display:flex;flex-direction:column;gap:10px}
.q-filter-bar{display:none;background:rgba(18,25,42,0.65);backdrop-filter:blur(24px) saturate(180%);-webkit-backdrop-filter:blur(24px) saturate(180%);padding:10px 14px;gap:8px;border-bottom:1px solid rgba(255,255,255,0.1);flex-shrink:0;overflow-x:auto;-webkit-overflow-scrolling:touch}
.q-filter-btn{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);color:var(--text2);font-size:12px;font-weight:600;padding:6px 14px;border-radius:20px;cursor:pointer;white-space:nowrap;display:flex;align-items:center;gap:6px;transition:all .2s cubic-bezier(0.16,1,0.3,1);user-select:none;-webkit-tap-highlight-color:transparent}
.q-filter-btn:hover{background:rgba(255,255,255,.12);color:var(--text);transform:translateY(-1px)}
.q-filter-btn:active{transform:scale(.92)}
.q-filter-btn.active,
.q-filter-btn.scenario-tab.active,
.q-filter-btn.codekata-tab.active,
.q-filter-btn.instacks-tab.active{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff;border-color:transparent;box-shadow:0 3px 14px rgba(59,130,246,.45),inset 0 1px 1px rgba(255,255,255,.25);animation:filterBounce .28s cubic-bezier(0.34,1.56,0.64,1)}
@keyframes filterBounce{0%{transform:scale(.92)}60%{transform:scale(1.05)}100%{transform:scale(1)}}
.f-badge{background:rgba(0,0,0,.25);padding:1px 6px;border-radius:10px;font-size:10.5px}

@keyframes qItemCascade{
  0%{opacity:0;transform:translateY(18px) scale(0.95);filter:blur(4px)}
  60%{filter:blur(0)}
  100%{opacity:1;transform:translateY(0) scale(1);filter:blur(0)}
}

.q-item{background:rgba(18,25,42,0.52);backdrop-filter:blur(24px) saturate(180%);-webkit-backdrop-filter:blur(24px) saturate(180%);border-radius:var(--radius);padding:14px 16px;box-shadow:0 12px 28px -6px rgba(0,0,0,0.5),inset 0 1px 1px 0 rgba(255,255,255,0.18);border:1px solid rgba(255,255,255,0.11);cursor:pointer;display:flex;align-items:flex-start;gap:12px;transition:all .2s cubic-bezier(0.16,1,0.3,1);-webkit-tap-highlight-color:transparent;animation:qItemCascade .34s cubic-bezier(0.16,1,0.3,1) both;animation-delay:calc(var(--item-idx, 0) * 0.022s);will-change:transform,opacity,filter}
.q-item:hover{background:rgba(26,36,60,0.65);border-color:rgba(96,165,250,.45);transform:translateY(-1.5px);box-shadow:0 16px 32px -6px rgba(0,0,0,0.55),0 0 20px rgba(59,130,246,.2),inset 0 1px 2px 0 rgba(255,255,255,0.3)}
.q-item:active{transform:scale(.98)}
.q-item-scenario,
.q-item-codekata,
.q-item-instacks{border-color:rgba(255,255,255,0.11);background:rgba(18,25,42,0.52)}
.q-item-num{min-width:28px;height:28px;border-radius:8px;background:var(--num-bg);color:var(--num-color);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:1px;border:1px solid rgba(59,130,246,.3)}
.q-item-content{flex:1;display:flex;flex-direction:column;gap:5px;overflow:hidden}
.q-item-meta{display:flex;align-items:center;gap:6px}
.tag-pill{font-size:9.5px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;padding:2px 7px;border-radius:6px;display:inline-block;background:rgba(59,130,246,.18);color:#60a5fa;border:1px solid rgba(59,130,246,.35)}
.tag-direct,
.tag-scenario,
.tag-codekata,
.tag-instacks{background:rgba(59,130,246,.18);color:#60a5fa;border:1px solid rgba(59,130,246,.35)}
.q-item-text{font-size:13.5px;font-weight:500;color:var(--text);line-height:1.45;white-space:pre-wrap}
.q-item-arrow{font-size:18px;color:var(--text3);align-self:center}

/* ================================================================
   QUESTION DETAIL — MOTION TRANSITIONS & GLASS CARDS
   ================================================================ */
.detail-body{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:16px 16px 94px;display:block}

/* Staggered Card Entrance Animations */
@keyframes cardReveal{from{opacity:0;transform:translateY(18px) scale(0.985)}to{opacity:1;transform:translateY(0) scale(1)}}
.detail-card-anim{animation:cardReveal .42s cubic-bezier(0.16,1,0.3,1) both}

/* Question-to-Question Directional Transitions */
@keyframes slideInFromRight{from{opacity:.35;transform:translateX(26px)}to{opacity:1;transform:translateX(0)}}
@keyframes slideInFromLeft{from{opacity:.35;transform:translateX(-26px)}to{opacity:1;transform:translateX(0)}}
.slide-in-right{animation:slideInFromRight .35s cubic-bezier(0.16,1,0.3,1) both}
.slide-in-left{animation:slideInFromLeft .35s cubic-bezier(0.16,1,0.3,1) both}
.fade-in{animation:cardReveal .35s cubic-bezier(0.16,1,0.3,1) both}

/* Section Card Base */
.section-card{background:rgba(18,25,42,0.55);backdrop-filter:blur(28px) saturate(190%);-webkit-backdrop-filter:blur(28px) saturate(190%);border-radius:var(--radius);box-shadow:0 16px 36px -8px rgba(0,0,0,0.55),inset 0 1px 1px 0 rgba(255,255,255,0.2);border:1px solid rgba(255,255,255,0.12);overflow:hidden;margin-bottom:14px;transition:border-color .2s,box-shadow .2s}
.section-card:hover{border-color:rgba(255,255,255,0.2)}
.q-type-banner{padding:10px 16px;font-size:11px;font-weight:800;display:flex;align-items:center;gap:8px;border-bottom:1px solid rgba(255,255,255,0.1);letter-spacing:.6px;text-transform:uppercase}
.q-type-banner.scenario-banner{background:linear-gradient(90deg,rgba(168,85,247,.2),rgba(59,130,246,.1));color:#c084fc}
.q-type-banner.direct-banner{background:linear-gradient(90deg,rgba(59,130,246,.2),rgba(6,182,212,.1));color:#60a5fa}
.q-banner-dot{width:7px;height:7px;border-radius:50%;display:inline-block}
.scenario-banner .q-banner-dot{background:#c084fc;box-shadow:0 0 8px #c084fc}
.direct-banner .q-banner-dot{background:#60a5fa;box-shadow:0 0 8px #60a5fa}
.sub-pill{font-size:10px;color:#94a3b8;font-weight:500;margin-left:4px}
.section-label,.section-title{font-size:10px;font-weight:800;letter-spacing:1.5px;text-transform:uppercase;color:var(--section-label);padding:12px 16px 4px}
.question-text,.q-text{font-size:14.5px;font-weight:500;color:var(--text);line-height:1.65;padding:8px 16px 16px;white-space:pre-wrap}

/* Format Table */
.fmt-table-wrap{padding:4px 16px 12px}
.fmt-table-heading{font-size:11.5px;font-weight:700;color:#94a3b8;margin-bottom:6px;letter-spacing:.4px;text-transform:uppercase}
.fmt-table{width:100%;border-collapse:collapse;font-size:12px;margin-top:2px;border-radius:8px;overflow:hidden;border:1px solid rgba(255,255,255,0.08);background:rgba(0,0,0,0.2)}
.fmt-table th{background:rgba(255,255,255,.05);color:var(--text2);font-weight:700;text-align:left;padding:8px 12px;font-size:11px;border-bottom:1px solid rgba(255,255,255,0.08);letter-spacing:.3px}
.fmt-table td{padding:8px 12px;border-bottom:1px solid rgba(255,255,255,0.06);color:var(--text);vertical-align:top;font-family:'JetBrains Mono',monospace;font-size:11.5px;font-variant-ligatures:none;font-feature-settings:'liga' 0,'calt' 0}
.fmt-table tr:last-child td{border-bottom:none}

/* High-Tech Glassy C Code Studio */
.code-block{background:rgba(12,17,28,0.72);backdrop-filter:blur(28px) saturate(190%);-webkit-backdrop-filter:blur(28px) saturate(190%);border-radius:var(--radius);overflow:hidden;margin-bottom:14px;border:1px solid rgba(255,255,255,0.12);box-shadow:0 18px 40px -8px rgba(0,0,0,0.65),inset 0 1px 1px 0 rgba(255,255,255,0.2)}
.code-header{display:flex;align-items:center;justify-content:space-between;padding:11px 16px;background:rgba(18,24,36,0.75);border-bottom:1px solid rgba(255,255,255,0.08)}
.code-header-left{display:flex;align-items:center;gap:10px}
.terminal-dots{display:flex;align-items:center;gap:6px}
.terminal-dots .dot{width:10px;height:10px;border-radius:50%;display:inline-block}
.terminal-dots .dot-r{background:#ff5f56;box-shadow:0 0 6px rgba(255,95,86,0.5)}
.terminal-dots .dot-y{background:#ffbd2e;box-shadow:0 0 6px rgba(255,189,46,0.5)}
.terminal-dots .dot-g{background:#27c93f;box-shadow:0 0 6px rgba(39,201,63,0.5)}
.code-file-tag{font-family:'JetBrains Mono',monospace;font-size:11.5px;font-weight:600;color:#cbd5e1}
.code-lang-pill{font-size:10px;font-weight:700;padding:2px 7px;border-radius:4px;background:rgba(59,130,246,.18);color:#60a5fa;border:1px solid rgba(59,130,246,.35)}
.code-actions{display:flex;gap:8px;align-items:center}
.copy-btn,.edit-btn{font-size:11.5px;padding:6px 14px;border-radius:8px;cursor:pointer;font-family:'Inter',sans-serif;font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:all .2s cubic-bezier(0.16,1,0.3,1)}
.copy-btn{color:#94a3b8;background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.12);box-shadow:inset 0 1px 1px rgba(255,255,255,.1)}
.copy-btn:hover{background:rgba(255,255,255,0.12);color:#fff;border-color:rgba(255,255,255,0.22)}
.copy-btn.copied{background:rgba(34,197,94,0.2);color:#4ade80;border-color:rgba(34,197,94,0.4)}
.edit-btn{color:#ffffff;background:linear-gradient(135deg,#3b82f6,#2563eb);border:1px solid rgba(96,165,250,0.55);box-shadow:0 3px 12px rgba(59,130,246,0.4),inset 0 1px 1px rgba(255,255,255,0.3)}
.edit-btn:hover{background:linear-gradient(135deg,#60a5fa,#3b82f6);box-shadow:0 6px 20px rgba(59,130,246,0.55);transform:translateY(-1px)}
.edit-btn:active{transform:scale(0.97)}
.edit-btn-icon{font-size:9px}
pre.code-pre{overflow-x:auto;-webkit-overflow-scrolling:touch;padding:16px;margin:0;font-family:'JetBrains Mono',monospace;font-size:12.5px;line-height:1.75;color:var(--code-text);white-space:pre;display:block;width:100%;font-variant-ligatures:none;font-feature-settings:'liga' 0,'calt' 0}
.kw{color:var(--keyword);font-weight:600}
.str{color:var(--string)}
.cmt{color:var(--comment);font-style:italic}
.num{color:var(--number-color)}
.typ{color:var(--type-color)}
.fn{color:var(--func-color)}
.op{color:#79c0ff}

/* Floating Bottom Navigation Dock */
.detail-nav-dock{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);z-index:80;display:flex;align-items:center;gap:8px;padding:6px 10px;background:rgba(16,23,38,0.75);backdrop-filter:blur(32px) saturate(200%);-webkit-backdrop-filter:blur(32px) saturate(200%);border:1px solid rgba(255,255,255,0.18);border-radius:999px;box-shadow:0 16px 40px rgba(0,0,0,0.6),0 0 28px rgba(59,130,246,0.25),inset 0 1px 1px 0 rgba(255,255,255,0.28);animation:dockEntrance .5s cubic-bezier(0.16,1,0.3,1) both}
@keyframes dockEntrance{from{opacity:0;transform:translate(-50%,20px) scale(0.92)}to{opacity:1;transform:translate(-50%,0) scale(1)}}
.nav-dock-btn{background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.12);color:#f1f5f9;font-size:12px;font-weight:700;padding:7px 16px;border-radius:999px;cursor:pointer;display:inline-flex;align-items:center;gap:6px;transition:all .2s cubic-bezier(0.16,1,0.3,1);-webkit-tap-highlight-color:transparent;user-select:none}
.nav-dock-btn:hover:not(:disabled){background:linear-gradient(135deg,#3b82f6,#2563eb);color:#ffffff;border-color:transparent;box-shadow:0 4px 14px rgba(59,130,246,0.45);transform:translateY(-1px)}
.nav-dock-btn:active:not(:disabled){transform:scale(0.95)}
.nav-dock-btn:disabled{opacity:0.35;cursor:not-allowed;border-color:rgba(255,255,255,0.04)}
.dock-arrow{font-size:13px;font-weight:800}
.nav-dock-info{display:flex;align-items:baseline;gap:4px;padding:6px 14px;background:rgba(0,0,0,0.25);border:1px solid rgba(255,255,255,0.08);border-radius:999px;cursor:pointer;transition:all .2s;user-select:none}
.nav-dock-info:hover{background:rgba(59,130,246,0.15);border-color:rgba(59,130,246,0.35)}
.dock-qnum{font-size:13px;font-weight:800;color:#60a5fa;font-family:'JetBrains Mono',monospace}
.dock-total{font-size:11px;font-weight:600;color:#94a3b8;font-family:'JetBrains Mono',monospace}

/* Test Cases In Main Detail (Legacy / Support) */
.tc-header{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;background:var(--card);border-bottom:1px solid var(--border)}
.tc-title{font-size:13px;font-weight:600;color:var(--text)}
.run-btn{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff;border:none;border-radius:8px;padding:7px 18px;font-size:13px;font-weight:700;cursor:pointer;font-family:'Inter',sans-serif;transition:all .2s;box-shadow:0 2px 8px rgba(59,130,246,.3);-webkit-tap-highlight-color:transparent}
.run-btn:active,.run-btn:disabled{opacity:.75;box-shadow:none}
.tc-list{padding:10px 10px 12px;display:flex;flex-direction:column;gap:8px}
.tc-row{border-radius:10px;overflow:hidden;border:1px solid var(--border)}
.tc-io-row{display:grid;grid-template-columns:1fr 1fr}
.tc-io{padding:8px 10px;font-family:'JetBrains Mono',monospace;font-size:11.5px;color:var(--text);background:var(--bg2);line-height:1.5;white-space:pre-wrap;font-variant-ligatures:none;font-feature-settings:'liga' 0,'calt' 0}
.tc-io:first-child{border-right:1px solid var(--border)}
.tc-io-label{display:block;font-family:'Inter',sans-serif;font-size:9.5px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--section-label);margin-bottom:4px}
.tc-result{display:none;padding:7px 12px;font-size:12px;font-weight:600;font-family:'Inter',sans-serif;border-top:1px solid var(--border);text-align:center}
.tc-result.pass{background:var(--pass-bg);color:var(--pass)}
.tc-result.fail{background:var(--fail-bg);color:var(--fail)}
.tc-result.warn{background:var(--warn-bg);color:var(--warn)}
.tc-result.show{display:block}
.tc-overall{margin:8px 10px 0;border-radius:10px;padding:10px 14px;font-size:13px;font-weight:700;font-family:'Inter',sans-serif;text-align:center;display:none;border:1px solid}
.tc-overall.all-pass{background:var(--pass-bg);color:var(--pass);border-color:rgba(34,197,94,.3);display:block}
.tc-overall.some-fail{background:var(--fail-bg);color:var(--fail);border-color:rgba(239,68,68,.3);display:block}
.editor-overlay{display:none;position:fixed;inset:0;z-index:999;background:rgba(4,7,14,.82);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);flex-direction:column;align-items:stretch;animation:editorOverlayFadeIn .25s ease both}
.editor-overlay.open{display:flex}
@keyframes editorOverlayFadeIn{from{opacity:0}to{opacity:1}}
.editor-modal{display:flex;flex-direction:column;height:100%;background:var(--bg2);animation:modalZoomIn .34s cubic-bezier(0.16,1,0.3,1) both}
@keyframes modalZoomIn{
  0%{opacity:0;transform:scale(0.92) translateY(24px);filter:blur(8px)}
  60%{filter:blur(0)}
  100%{opacity:1;transform:scale(1) translateY(0);filter:blur(0)}
}
.editor-topbar{display:flex;align-items:center;padding:10px 14px;gap:10px;background:rgba(14,20,34,0.78);backdrop-filter:blur(28px) saturate(190%);-webkit-backdrop-filter:blur(28px) saturate(190%);border-bottom:1px solid rgba(255,255,255,0.12);box-shadow:inset 0 1px 1px 0 rgba(255,255,255,0.18);flex-shrink:0}
.editor-title{flex:1;font-size:13px;font-weight:600;color:var(--text);font-family:'JetBrains Mono',monospace;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.editor-close-btn{width:34px;height:34px;border-radius:10px;background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.12);color:#94a3b8;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s cubic-bezier(0.16,1,0.3,1);-webkit-tap-highlight-color:transparent;flex-shrink:0;box-shadow:0 2px 8px rgba(0,0,0,0.2)}
.editor-close-btn:hover{background:rgba(239,68,68,0.18);border-color:rgba(239,68,68,0.45);color:#fca5a5;box-shadow:0 0 14px rgba(239,68,68,0.3);transform:scale(1.05)}
.editor-close-btn:active{transform:scale(0.95);background:rgba(239,68,68,0.3)}
.editor-close-btn .close-icon{display:block;transition:transform .2s cubic-bezier(0.16,1,0.3,1)}
.editor-close-btn:hover .close-icon{transform:rotate(90deg)}
.editor-run-btn{background:linear-gradient(135deg,#10b981,#059669);color:#fff;border:none;border-radius:8px;padding:7px 16px;font-size:13px;font-weight:700;cursor:pointer;font-family:'Inter',sans-serif;box-shadow:0 2px 8px rgba(16,185,129,.3);white-space:nowrap}
.editor-run-btn:disabled{opacity:.6;cursor:default}
.editor-warn-bar{background:rgba(245,158,11,.1);border-bottom:1px solid rgba(245,158,11,.25);padding:6px 14px;font-size:11.5px;color:var(--warn);font-weight:600;display:none;flex-shrink:0;align-items:center;gap:8px}
.editor-warn-bar.show{display:flex}
.editor-area-wrap{flex:1;display:flex;flex-direction:column;overflow:hidden;min-height:0}
.editor-gutter-wrap{flex:1;display:flex;overflow:hidden;min-height:0}
.editor-gutter{background:#0d1117;color:#3d4451;text-align:right;padding:12px 10px 12px 8px;min-width:42px;border-right:1px solid var(--border);overflow:hidden;user-select:none;flex-shrink:0;white-space:pre;font-size:12px;line-height:1.75;font-family:'JetBrains Mono',monospace;font-variant-ligatures:none;font-feature-settings:'liga' 0,'calt' 0}
.editor-textarea{flex:1;background:#0d1117;color:#c9d1d9;border:none;outline:none;resize:none;padding:12px 14px;font-family:'JetBrains Mono',monospace;font-size:13px;line-height:1.75;white-space:pre;overflow-x:auto;tab-size:4;caret-color:#79c0ff;width:100%;height:100%;font-variant-ligatures:none;font-feature-settings:'liga' 0,'calt' 0;-webkit-font-feature-settings:'liga' 0,'calt' 0}
.editor-errors{background:#0a0f18;border-top:1px solid var(--border);max-height:150px;overflow-y:auto;flex-shrink:0;display:none}
.editor-errors.show{display:block}
.error-line{display:flex;align-items:flex-start;gap:8px;padding:7px 14px;border-bottom:1px solid rgba(239,68,68,.1);font-size:12px;line-height:1.5}
.error-line .err-ico{color:#ef4444;font-size:14px;flex-shrink:0;margin-top:1px}
.error-line .err-msg{color:#fca5a5;font-family:'JetBrains Mono',monospace;flex:1;font-variant-ligatures:none;font-feature-settings:'liga' 0,'calt' 0}
.error-line .err-loc{color:#64748b;font-size:10px;margin-left:6px;flex-shrink:0}
.editor-output{background:#0a0f18;border-top:1px solid var(--border);max-height:220px;overflow-y:auto;flex-shrink:0;display:none}
.editor-output.show{display:block}
.output-header{display:flex;align-items:center;justify-content:space-between;padding:7px 14px;border-bottom:1px solid var(--border);background:#0d1117;flex-shrink:0}
.output-label{font-size:10px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:#64748b}
.output-score{font-size:13px;font-weight:800;padding:2px 10px;border-radius:6px}
.output-score.ok{background:var(--pass-bg);color:var(--pass)}
.output-score.partial{background:var(--warn-bg);color:var(--warn)}
.output-score.err{background:var(--fail-bg);color:var(--fail)}
.output-tc-list{padding:8px;display:flex;flex-direction:column;gap:6px}
.output-tc-row{border-radius:8px;overflow:hidden;border:1px solid var(--border)}
.output-tc-top{display:grid;grid-template-columns:36px 1fr 1fr;gap:0}
.output-tc-num{padding:6px 8px;background:#131c2e;font-size:11px;font-weight:700;color:var(--text2);display:flex;align-items:center;justify-content:center;border-right:1px solid var(--border)}
.output-tc-col{padding:6px 8px;background:var(--bg2);font-family:'JetBrains Mono',monospace;font-size:10.5px;color:var(--text);line-height:1.4;white-space:pre-wrap;font-variant-ligatures:none;font-feature-settings:'liga' 0,'calt' 0}
.output-tc-col:first-of-type{border-right:1px solid var(--border)}
.output-tc-col-label{font-family:'Inter',sans-serif;font-size:8.5px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:#64748b;margin-bottom:2px}
.output-tc-verdict{border-top:1px solid var(--border);padding:5px 10px;text-align:center;font-size:11px;font-weight:700;font-family:'Inter',sans-serif}
.output-tc-verdict.pass{background:var(--pass-bg);color:var(--pass)}
.output-tc-verdict.fail{background:var(--fail-bg);color:var(--fail)}
::-webkit-scrollbar{width:5px;height:5px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:#2a3347;border-radius:4px}

/* ================================================================
   HERO PORTAL LAUNCHPAD (LIVE C COMPILER & SYNTAX GUIDE)
   ================================================================ */
.hero-portals-deck {
  padding: 16px 16px 20px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

.hero-portal-card {
  position: relative;
  background: rgba(18, 25, 42, 0.52);
  backdrop-filter: blur(28px) saturate(190%);
  -webkit-backdrop-filter: blur(28px) saturate(190%);
  border-radius: 18px;
  padding: 18px 22px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.55), inset 0 1px 1px 0 rgba(255, 255, 255, 0.22);
  cursor: pointer;
  display: flex;
  align-items: center;
  overflow: hidden;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  -webkit-tap-highlight-color: transparent;
}

.hero-portal-card:hover {
  background: rgba(26, 36, 60, 0.65);
  transform: translateY(-2px) scale(1.008);
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.65), 0 0 28px rgba(56, 189, 248, 0.25), inset 0 1px 2px 0 rgba(255, 255, 255, 0.38);
}

.compiler-portal:hover {
  border-color: rgba(56, 189, 248, 0.55);
}

.formula-portal:hover {
  border-color: rgba(52, 211, 153, 0.55);
}

.hero-portal-card:active {
  transform: scale(0.985);
}

/* Ambient Radial Halos */
.portal-halo {
  position: absolute;
  top: -30px;
  right: -30px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  filter: blur(45px);
  pointer-events: none;
  opacity: 0.4;
  transition: opacity 0.3s;
}
.hero-portal-card:hover .portal-halo {
  opacity: 0.75;
}
.halo-blue { background: radial-gradient(circle, #38bdf8 0%, #2563eb 80%, transparent 100%); }
.halo-emerald { background: radial-gradient(circle, #34d399 0%, #059669 80%, transparent 100%); }

/* Card Body Layout */
.portal-card-body {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  position: relative;
  z-index: 2;
}

.portal-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.portal-status-live {
  display: flex;
  align-items: center;
  gap: 6px;
}
.live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  animation: pulseDot 1.8s infinite ease-in-out;
}
.dot-blue { background: #38bdf8; box-shadow: 0 0 8px #38bdf8; }
.dot-emerald { background: #34d399; box-shadow: 0 0 8px #34d399; }
.live-label {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.8px;
  color: #94a3b8;
  text-transform: uppercase;
}

.portal-title {
  font-size: 18px;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.3px;
  line-height: 1.25;
}

.portal-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
  flex-shrink: 0;
}
.cta-blue {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.35), rgba(56, 189, 248, 0.25));
  color: #e0f2fe;
  border-color: rgba(56, 189, 248, 0.4);
}
.hero-portal-card:hover .cta-blue {
  background: linear-gradient(135deg, #2563eb, #38bdf8);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(56, 189, 248, 0.45);
}

.cta-emerald {
  background: linear-gradient(135deg, rgba(5, 150, 105, 0.35), rgba(52, 211, 153, 0.25));
  color: #d1fae5;
  border-color: rgba(52, 211, 153, 0.4);
}
.hero-portal-card:hover .cta-emerald {
  background: linear-gradient(135deg, #059669, #34d399);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(52, 211, 153, 0.45);
}

.cta-arrow {
  font-size: 13px;
  font-weight: 800;
  transition: transform 0.2s;
}
.hero-portal-card:hover .cta-arrow {
  transform: translateX(3px);
}

/* Topics Section Header */
.topics-section {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}
.topics-section-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  margin-bottom: 14px;
}
.topics-section-label {
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: #64748b;
}
.topics-section-count {
  font-size: 11.5px;
  font-weight: 600;
  color: #94a3b8;
}

/* Responsive Topic Cards on Desktop/Projector */
@media (min-width: 768px) {
  .topic-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 14px;
    padding: 0 16px 40px;
  }
}

/* Editor Topbar & Live Compiler Badge */
.editor-topbar-left{display:flex;align-items:center;gap:10px;flex:1;min-width:0}
.editor-topbar-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}
.compiler-badge{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:20px;font-size:11px;font-weight:600;font-family:'Inter',sans-serif;border:1px solid;transition:all .2s;white-space:nowrap}
.compiler-dot{width:7px;height:7px;border-radius:50%;display:inline-block}
.compiler-badge.idle{background:rgba(100,116,139,.15);border-color:rgba(100,116,139,.35);color:#94a3b8}
.compiler-badge.idle .compiler-dot{background:#94a3b8}
.compiler-badge.checking{background:rgba(245,158,11,.15);border-color:rgba(245,158,11,.45);color:#fbbf24}
.compiler-badge.checking .compiler-dot{background:#f59e0b;animation:compilerPulse 1s infinite alternate}
.compiler-badge.clean{background:rgba(16,185,129,.15);border-color:rgba(16,185,129,.45);color:#34d399}
.compiler-badge.clean .compiler-dot{background:#10b981}
.compiler-badge.error{background:rgba(239,68,68,.18);border-color:rgba(239,68,68,.5);color:#fca5a5}
.compiler-badge.error .compiler-dot{background:#ef4444;animation:compilerPulse .8s infinite alternate}
.compiler-badge.offline{background:rgba(100,116,139,.12);border-color:rgba(100,116,139,.3);color:#cbd5e1}
.compiler-badge.offline .compiler-dot{background:#64748b}

@keyframes compilerPulse{0%{opacity:.4;transform:scale(.85)}100%{opacity:1;transform:scale(1.2)}}

.editor-btn-gcc{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;border:none;border-radius:8px;padding:7px 15px;font-size:12.5px;font-weight:700;cursor:pointer;font-family:'Inter',sans-serif;box-shadow:0 2px 8px rgba(99,102,241,.3);white-space:nowrap;transition:all .15s}
.editor-btn-gcc:active{transform:scale(.97)}
.editor-btn-gcc:disabled{opacity:.6;cursor:default}

/* Bottom Tab Switcher */
.editor-bottom-bar{display:flex;align-items:center;background:#0d1117;border-top:1px solid var(--border);border-bottom:1px solid var(--border);flex-shrink:0}
.editor-tab{flex:1;text-align:center;padding:9px 12px;font-size:12px;font-weight:600;color:#8b949e;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:6px;border-bottom:2px solid transparent;transition:all .15s;-webkit-tap-highlight-color:transparent}
.editor-tab:hover{color:#c9d1d9}
.editor-tab.active{color:#58a6ff;border-bottom-color:#58a6ff;background:rgba(56,139,253,.07)}
.tab-pill{font-size:10px;font-weight:700;background:rgba(239,68,68,.25);color:#fca5a5;padding:1px 6px;border-radius:10px;border:1px solid rgba(239,68,68,.4);display:none}
.tab-pill.show{display:inline-block}

/* Panels */
.editor-panel{display:none;background:#090d16;overflow-y:auto;flex-shrink:0}
.editor-panel.active{display:block}
#panel-terminal{max-height:220px;height:220px}
#panel-stdin{max-height:160px;height:140px;padding:10px 14px}
#panel-tests{height:340px;max-height:60vh;overflow-y:auto;display:none;flex-direction:column}
#panel-tests.active{display:flex}

/* Terminal Box */
.terminal-box{display:flex;flex-direction:column;height:100%;background:#090d16}
.terminal-bar{display:flex;align-items:center;padding:6px 12px;background:#0d1117;border-bottom:1px solid var(--border);gap:8px;flex-shrink:0}
.terminal-dots{display:flex;align-items:center;gap:5px}
.terminal-dots .dot{width:9px;height:9px;border-radius:50%;display:inline-block}
.dot-r{background:#ef4444}
.dot-y{background:#f59e0b}
.dot-g{background:#10b981}
.terminal-label{font-size:10.5px;font-weight:700;color:#8b949e;flex:1;font-family:'JetBrains Mono',monospace;letter-spacing:.3px}
.terminal-clear-btn{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);color:#94a3b8;font-size:10px;padding:2px 8px;border-radius:4px;cursor:pointer}
.terminal-body{flex:1;padding:10px 14px;margin:0;font-family:'JetBrains Mono',monospace;font-size:11.5px;line-height:1.6;color:#c9d1d9;white-space:pre-wrap;word-break:break-word;overflow-y:auto}

/* GCC Color Highlights in Terminal */
.gcc-file{color:#38bdf8;font-weight:600}
.gcc-loc{color:#93c5fd;font-weight:700}
.gcc-err{color:#ef4444;font-weight:800;background:rgba(239,68,68,.12);padding:1px 4px;border-radius:3px}
.gcc-warn{color:#f59e0b;font-weight:800;background:rgba(245,158,11,.12);padding:1px 4px;border-radius:3px}
.gcc-note{color:#94a3b8;font-weight:600}
.gcc-gutter{color:#475569;font-weight:600}
.gcc-caret{color:#f87171;font-weight:800}
.gcc-fix{color:#34d399;font-weight:700}
.gcc-code-line{color:#e2e8f0}
.gcc-stdout{color:#f1f5f9;font-weight:500}
.gcc-clean{color:#34d399;font-weight:600}
.gcc-header{color:#a78bfa;font-weight:700;border-bottom:1px solid rgba(167,139,250,.2);padding-bottom:3px;margin-bottom:6px;display:block}

/* Stdin Input Panel */
.stdin-box{display:flex;flex-direction:column;height:100%;gap:6px}
.stdin-label{font-size:11px;font-weight:700;color:#8b949e;letter-spacing:.5px;text-transform:uppercase}
.editor-stdin{flex:1;background:#0d1117;color:#e2e8f0;border:1px solid var(--border);border-radius:6px;padding:8px 10px;font-family:'JetBrains Mono',monospace;font-size:12px;line-height:1.5;resize:none;outline:none}
.editor-stdin:focus{border-color:#38bdf8}

/* ================================================================
   SYNTAX & CHEAT SHEET GUIDE STYLES
   ================================================================ */

.syntax-guide-body{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:16px;display:flex;flex-direction:column;gap:18px}
.syntax-topic-block{background:rgba(18,25,42,0.52);backdrop-filter:blur(28px) saturate(190%);-webkit-backdrop-filter:blur(28px) saturate(190%);border-radius:var(--radius);padding:18px 20px;border:1px solid rgba(255,255,255,0.12);box-shadow:0 16px 36px -8px rgba(0,0,0,0.55),inset 0 1px 1px 0 rgba(255,255,255,0.2);display:flex;flex-direction:column;gap:16px}
.syntax-topic-header{display:flex;align-items:flex-start;gap:14px;border-bottom:1px solid var(--border);padding-bottom:14px}
.syntax-topic-num{width:38px;height:38px;border-radius:10px;background:rgba(59,130,246,.15);border:1px solid rgba(59,130,246,.35);color:#60a5fa;font-size:17px;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.syntax-topic-titles{flex:1;display:flex;flex-direction:column;gap:4px}
.syntax-topic-badge{display:inline-block;align-self:flex-start;padding:2px 8px;border-radius:12px;font-size:10px;font-weight:700;letter-spacing:.5px;border:1px solid rgba(59,130,246,.35);background:rgba(59,130,246,.15);color:#60a5fa}
.syntax-topic-title{font-size:18px;font-weight:700;color:#fff}
.syntax-topic-sub{font-size:12.5px;color:var(--text2);line-height:1.4}

.syntax-section{display:flex;flex-direction:column;gap:8px}
.syntax-section-heading{font-size:13px;font-weight:700;color:#93c5fd;letter-spacing:.5px;display:flex;align-items:center;gap:6px}
.syntax-code-pre{background:#0d1117;border:1px solid var(--border);border-left:4px solid #3b82f6;border-radius:8px;padding:12px 14px;font-family:'JetBrains Mono',monospace;font-size:12px;line-height:1.55;color:#e2e8f0;overflow-x:auto}

.syntax-fmt-table{width:100%;border-collapse:collapse;font-size:12px;margin-top:4px}
.syntax-fmt-table th{background:rgba(255,255,255,.05);color:#cbd5e1;padding:8px 10px;text-align:left;border:1px solid var(--border);font-weight:600}
.syntax-fmt-table td{padding:8px 10px;border:1px solid var(--border);color:var(--text2)}
.syntax-fmt-table tr:nth-child(even) td{background:rgba(255,255,255,.02)}
.syntax-spec-pill{background:rgba(59,130,246,.2);color:#93c5fd;padding:2px 7px;border-radius:6px;font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:700;border:1px solid rgba(59,130,246,.3)}

.syntax-rules-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:10px}
.syntax-rule-item{background:rgba(255,255,255,.03);border:1px solid var(--border);border-radius:8px;padding:10px 12px;display:flex;flex-direction:column;gap:4px}
.syntax-rule-code code{color:#34d399;font-weight:700;font-family:'JetBrains Mono',monospace;font-size:12.5px}
.syntax-rule-desc{font-size:11.5px;color:var(--text2);line-height:1.4}

.syntax-traps-list{display:flex;flex-direction:column;gap:8px}
.syntax-trap-card{background:rgba(239,68,68,.06);border:1px solid rgba(239,68,68,.3);border-radius:8px;padding:10px 12px;display:flex;flex-direction:column;gap:3px}
.syntax-trap-title{color:#fca5a5;font-weight:700;font-size:12.5px}
.syntax-trap-detail{color:rgba(255,255,255,.75);font-size:11.5px;line-height:1.45}

.syntax-approach-box{background:rgba(16,185,129,.05);border:1px solid rgba(16,185,129,.3);border-left:4px solid #10b981;border-radius:8px;padding:12px 14px;display:flex;flex-direction:column;gap:8px}
.syntax-approach-step{display:flex;align-items:flex-start;gap:8px;font-size:12px;color:#e2e8f0;line-height:1.45}
.syntax-approach-arrow{color:#34d399;font-weight:800;flex-shrink:0}

.syntax-example-desc{font-size:12px;color:var(--text2);font-style:italic}

.syntax-peek-btn{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,rgba(16,185,129,.18),rgba(59,130,246,.22));border:1px solid rgba(52,211,153,.45);color:#6ee7b7;font-size:12px;font-weight:700;padding:8px 16px;border-radius:10px;cursor:pointer;margin-bottom:12px;box-shadow:0 4px 16px rgba(16,185,129,.15);transition:all .25s cubic-bezier(0.16,1,0.3,1)}
.syntax-peek-btn:hover{background:linear-gradient(135deg,rgba(16,185,129,.28),rgba(59,130,246,.32));border-color:#34d399;color:#a7f3d0;transform:translateY(-1.5px);box-shadow:0 6px 20px rgba(16,185,129,.25)}
.peek-badge{background:rgba(16,185,129,.25);border:1px solid rgba(52,211,153,.4);color:#6ee7b7;font-size:9.5px;font-weight:800;padding:2px 6px;border-radius:4px;letter-spacing:.5px}

/* Explicit Syntax Formulas & Blueprint Cards */
.syntax-formulas-list{display:flex;flex-direction:column;gap:10px}
.syntax-formula-card{background:rgba(255,255,255,.02);border:1px solid var(--border);border-left:3px solid #3b82f6;border-radius:8px;padding:12px 14px;display:flex;flex-direction:column;gap:6px}
.syntax-formula-title{font-size:12.5px;font-weight:700;color:#93c5fd;letter-spacing:.3px}
.syntax-formula-pre{background:#0d1117;border:1px solid rgba(255,255,255,.08);border-radius:6px;padding:8px 12px;font-family:'JetBrains Mono',monospace;font-size:11.5px;color:#e2e8f0;line-height:1.45;margin:0;overflow-x:auto}
.syntax-formula-note{font-size:11.5px;color:var(--text2);line-height:1.4}

/* Cognitive Blueprint Timeline & Approach Card */
.hint-card{background:rgba(18,25,42,0.58);backdrop-filter:blur(28px) saturate(190%);-webkit-backdrop-filter:blur(28px) saturate(190%);border:1px solid rgba(59,130,246,0.35);border-radius:var(--radius);margin-bottom:14px;overflow:hidden;box-shadow:0 16px 36px -8px rgba(0,0,0,0.55),0 0 22px rgba(59,130,246,0.15),inset 0 1px 1px 0 rgba(255,255,255,0.22);transition:border-color .25s,box-shadow .25s}
.hint-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 18px;background:linear-gradient(135deg,rgba(30,41,59,.45),rgba(15,23,42,.65));border-bottom:1px solid rgba(255,255,255,0.08)}
.hint-title-wrap{display:flex;flex-direction:column;gap:3px}
.hint-badge-wrap{display:flex;align-items:center;gap:8px}
.hint-pulse-dot{width:8px;height:8px;border-radius:50%;background:#38bdf8;box-shadow:0 0 10px #38bdf8;animation:pulseDot 2s infinite ease-in-out}
@keyframes pulseDot{0%{transform:scale(0.85);opacity:0.6}50%{transform:scale(1.2);opacity:1}100%{transform:scale(0.85);opacity:0.6}}
.hint-badge{font-size:11px;font-weight:800;letter-spacing:.8px;color:#60a5fa;text-transform:uppercase}
.hint-subtitle{font-size:11.5px;color:var(--text2);font-weight:500}
.hint-toggle-btn{background:linear-gradient(135deg,rgba(59,130,246,.15),rgba(99,102,241,.2));border:1px solid rgba(96,165,250,.4);color:#93c5fd;font-size:11.5px;font-weight:700;padding:7px 16px;border-radius:999px;cursor:pointer;transition:all .2s cubic-bezier(0.16,1,0.3,1);display:inline-flex;align-items:center;gap:6px;-webkit-tap-highlight-color:transparent}
.hint-toggle-btn:hover,.hint-toggle-btn.active{background:linear-gradient(135deg,#3b82f6,#6366f1);color:#fff;border-color:transparent;box-shadow:0 4px 16px rgba(59,130,246,.4);transform:translateY(-1px)}
.hint-btn-icon{font-size:10px}
.hint-content{border-top:1px solid rgba(255,255,255,0.06);background:rgba(10,14,23,0.6);animation:cardReveal .35s cubic-bezier(0.16,1,0.3,1) both}

/* Timeline Layout */
.hint-timeline{position:relative;display:flex;flex-direction:column;gap:18px;padding:18px 18px 20px 22px}
.hint-timeline::before{content:'';position:absolute;top:32px;bottom:32px;left:38px;width:2px;background:linear-gradient(180deg,#38bdf8 0%,#818cf8 35%,#34d399 70%,#fbbf24 100%);border-radius:999px;opacity:.35}
.hint-timeline-node{position:relative;display:flex;align-items:flex-start;gap:14px;z-index:1}
.hint-node-indicator{width:32px;height:32px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:800;font-family:'JetBrains Mono',monospace;flex-shrink:0;box-shadow:0 4px 12px rgba(0,0,0,.3);border:1px solid}
.node-1 .hint-node-indicator{background:rgba(56,189,248,.15);color:#38bdf8;border-color:rgba(56,189,248,.4);box-shadow:0 0 12px rgba(56,189,248,.25)}
.node-2 .hint-node-indicator{background:rgba(129,140,248,.15);color:#818cf8;border-color:rgba(129,140,248,.4);box-shadow:0 0 12px rgba(129,140,248,.25)}
.node-3 .hint-node-indicator{background:rgba(52,211,153,.15);color:#34d399;border-color:rgba(52,211,153,.4);box-shadow:0 0 12px rgba(52,211,153,.25)}
.node-4 .hint-node-indicator{background:rgba(251,191,36,.15);color:#fbbf24;border-color:rgba(251,191,36,.4);box-shadow:0 0 12px rgba(251,191,36,.25)}

.hint-node-content{flex:1;background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.07);border-radius:12px;padding:12px 16px;transition:all .2s cubic-bezier(0.16,1,0.3,1)}
.hint-node-content:hover{background:rgba(255,255,255,0.05);border-color:rgba(255,255,255,0.12)}
.hint-step-label{font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.6px;margin-bottom:6px}
.node-1 .hint-step-label{color:#38bdf8}
.node-2 .hint-step-label{color:#818cf8}
.node-3 .hint-step-label{color:#34d399}
.node-4 .hint-step-label{color:#fbbf24}
.hint-step-text{font-size:12.5px;color:#e2e8f0;line-height:1.6}
.hint-step-text code{color:#93c5fd;background:rgba(59,130,246,.12);border:1px solid rgba(59,130,246,.25);padding:1px 6px;border-radius:4px;font-family:'JetBrains Mono',monospace;font-size:11.5px}
.hint-step-text strong{color:#f8fafc;font-weight:700}

/* ================================================================
   INTERACTIVE TEST CASES PORTAL & FRONTPAGE BANNER
   ================================================================ */
.editor-launch-card{background:linear-gradient(135deg,rgba(30,41,59,.7),rgba(15,23,42,.9));border:1px solid rgba(59,130,246,.3);border-radius:12px;padding:14px 16px;margin-top:12px;box-shadow:0 4px 16px rgba(0,0,0,.25)}
.editor-launch-header{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}
.editor-launch-left{flex:1;min-width:220px}
.editor-launch-title{font-size:13.5px;font-weight:700;color:#f8fafc;margin-bottom:4px;display:flex;align-items:center;gap:8px}
.editor-launch-subtitle{font-size:11.5px;color:#94a3b8;line-height:1.45}
.editor-launch-btn{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff;border:none;border-radius:8px;padding:9px 18px;font-size:12.5px;font-weight:700;cursor:pointer;font-family:'Inter',sans-serif;box-shadow:0 2px 10px rgba(37,99,235,.35);transition:all .15s;white-space:nowrap}
.editor-launch-btn:hover{background:linear-gradient(135deg,#60a5fa,#3b82f6);box-shadow:0 4px 14px rgba(37,99,235,.5)}
.editor-launch-btn:active{transform:scale(.98)}

/* Editor Test Cases Portal Inside Modal */
.editor-portal-header{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;background:#0d1117;border-bottom:1px solid var(--border);gap:12px;flex-shrink:0;flex-wrap:wrap}
.editor-portal-info{display:flex;flex-direction:column;gap:2px}
.editor-portal-title{font-size:12px;font-weight:700;color:#e2e8f0;letter-spacing:.3px}
.editor-portal-sub{font-size:11px;color:#8b949e}
.editor-portal-sub.pass{color:#22c55e;font-weight:600}
.editor-portal-sub.err{color:#ef4444;font-weight:600}
.editor-portal-sub.partial{color:#f59e0b;font-weight:600}
.editor-portal-run-btn{background:linear-gradient(135deg,#10b981,#059669);color:#fff;border:none;border-radius:7px;padding:7px 16px;font-size:12px;font-weight:700;cursor:pointer;font-family:'Inter',sans-serif;box-shadow:0 2px 8px rgba(16,185,129,.35);transition:all .15s;white-space:nowrap}
.editor-portal-run-btn:disabled{opacity:.6;cursor:default}
.editor-portal-run-btn:hover:not(:disabled){background:linear-gradient(135deg,#34d399,#10b981)}

.portal-tc-list{padding:12px 14px;display:flex;flex-direction:column;gap:12px;overflow-y:auto}
.portal-tc-card{background:#131a26;border:1px solid #2a3347;border-radius:10px;overflow:hidden;transition:border-color .15s}
.portal-tc-card.pass{border-color:rgba(34,197,94,.45)}
.portal-tc-card.fail{border-color:rgba(239,68,68,.45)}
.portal-tc-card.pending{border-color:#2a3347}
.portal-tc-head{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;background:#182234;border-bottom:1px solid #2a3347}
.portal-tc-tag{font-size:11.5px;font-weight:700;color:#cbd5e1}
.portal-tc-badge{font-size:10px;font-weight:800;padding:2px 8px;border-radius:6px;letter-spacing:.5px;text-transform:uppercase}
.portal-tc-badge.pass{background:rgba(34,197,94,.15);color:#22c55e;border:1px solid rgba(34,197,94,.3)}
.portal-tc-badge.fail{background:rgba(239,68,68,.15);color:#ef4444;border:1px solid rgba(239,68,68,.3)}
.portal-tc-badge.err{background:rgba(245,158,11,.15);color:#f59e0b;border:1px solid rgba(245,158,11,.3)}
.portal-tc-badge.pending{background:rgba(148,163,184,.12);color:#94a3b8;border:1px solid rgba(148,163,184,.25)}

.portal-tc-body{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;padding:10px 12px}
@media(max-width:700px){.portal-tc-body{grid-template-columns:1fr}}
.portal-tc-box{background:#0d1117;padding:8px 10px;border-radius:6px;border:1px solid #212836;display:flex;flex-direction:column}
.portal-tc-box.got-pass{border-color:rgba(34,197,94,.4);background:rgba(34,197,94,.04)}
.portal-tc-box.got-fail{border-color:rgba(239,68,68,.4);background:rgba(239,68,68,.04)}
.portal-tc-lbl{font-size:9.5px;font-weight:700;color:#64748b;letter-spacing:.6px;text-transform:uppercase;margin-bottom:4px;display:block}
.portal-tc-code{margin:0;font-family:'JetBrains Mono',monospace;font-size:11px;color:#c9d1d9;white-space:pre-wrap;word-break:break-word;line-height:1.5}
.portal-tc-code.portal-tc-dim{color:#64748b;font-style:italic}
.portal-tc-verdict{font-size:11px;font-weight:600;padding:7px 12px;border-top:1px solid #2a3347}
.portal-tc-verdict.pass{background:rgba(34,197,94,.08);color:#22c55e}
.portal-tc-verdict.fail{background:rgba(239,68,68,.08);color:#fca5a5}
.tc-err-msg{color:#fca5a5;font-family:'JetBrains Mono',monospace;font-size:11px}
.portal-tc-empty{padding:20px;text-align:center;color:#64748b;font-size:12px;font-style:italic}

/* ================================================================
   AUTHENTIC APP SPLASH & C-ENGINE BOOTLOADER
   ================================================================ */
.app-splash {
  position: fixed;
  inset: 0;
  z-index: 100000;
  background: radial-gradient(circle at 50% 32%, #142240 0%, #0d1628 50%, #070a12 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: max(40px, env(safe-area-inset-top)) 24px max(28px, env(safe-area-inset-bottom));
  box-sizing: border-box;
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
  transition: opacity 0.45s cubic-bezier(0.4, 0, 0.2, 1), transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
}

.app-splash.splash-exit {
  opacity: 0;
  transform: scale(1.04);
  pointer-events: none;
}

.splash-ambient-glow {
  position: absolute;
  top: 30%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.22) 0%, rgba(37, 99, 235, 0.08) 50%, transparent 75%);
  filter: blur(32px);
  pointer-events: none;
}

.splash-particles-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  mask-image: radial-gradient(circle at 50% 40%, black 40%, transparent 80%);
  -webkit-mask-image: radial-gradient(circle at 50% 40%, black 40%, transparent 80%);
}

.splash-center-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: auto 0;
  text-align: center;
  position: relative;
  z-index: 2;
}

.splash-emblem-wrap {
  position: relative;
  width: 120px;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.splash-halo-glow {
  position: absolute;
  inset: -10px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.35) 0%, transparent 70%);
  border-radius: 50%;
  animation: splashPulse 3s ease-in-out infinite alternate;
}

.splash-orbit-ring {
  position: absolute;
  border-radius: 50%;
}

.splash-orbit-ring.ring-outer {
  inset: 0;
  border: 1.5px dashed rgba(96, 165, 250, 0.35);
  animation: splashSpin 14s linear infinite;
}

.splash-orbit-ring.ring-inner {
  inset: 10px;
  border: 1px solid rgba(56, 189, 248, 0.22);
  animation: splashSpinReverse 9s linear infinite;
}

.splash-orbit-dot {
  position: absolute;
  top: -3px;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  background: #38bdf8;
  border-radius: 50%;
  box-shadow: 0 0 10px #38bdf8;
}

.splash-shield {
  width: 82px;
  height: 82px;
  background: linear-gradient(135deg, #182236 0%, #0d1525 100%);
  border: 1.5px solid rgba(96, 165, 250, 0.55);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 24px rgba(59, 130, 246, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.15);
  position: relative;
  z-index: 3;
}

.splash-yazh-char {
  font-family: 'Noto Sans Tamil', 'Nirmala UI', 'Mukta Malar', sans-serif;
  font-size: 28px;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: 0.5px;
  text-shadow: 0 0 16px rgba(96, 165, 250, 0.85);
  line-height: 1;
  user-select: none;
}

.splash-brand-block {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.splash-app-title {
  font-size: 28px;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: 1px;
  margin: 0;
  text-shadow: 0 0 35px rgba(59, 130, 246, 0.5);
}

.splash-bottom-bar {
  width: 100%;
  max-width: 320px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
  z-index: 2;
  margin-top: auto;
}

.splash-status-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
}

.splash-status-msg {
  font-size: 11.5px;
  color: #94a3b8;
  letter-spacing: 0.3px;
}

.splash-status-pct {
  font-size: 13px;
  font-weight: 700;
  color: #38bdf8;
  flex-shrink: 0;
  min-width: 36px;
  text-align: right;
}

.splash-bar-track {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 999px;
  overflow: hidden;
  position: relative;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.5);
}

.splash-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #2563eb, #3b82f6, #38bdf8);
  border-radius: 999px;
  transition: width 0.08s linear;
  position: relative;
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.65);
}

.splash-bar-gleam {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 40px;
  background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.6) 50%, transparent 100%);
  animation: splashGleam 1.4s infinite linear;
}

@keyframes splashSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes splashSpinReverse {
  from { transform: rotate(360deg); }
  to { transform: rotate(0deg); }
}

@keyframes splashPulse {
  0% { transform: scale(0.95); opacity: 0.5; }
  100% { transform: scale(1.08); opacity: 0.9; }
}

@keyframes splashGleam {
  0% { left: -40px; }
  100% { left: 100%; }
}