/* ============================================================
   CYBER DETECTIVE - Find the Attack | SwarupInfotech
   Premium cybersecurity interface. Dark, terminal-inspired,
   glassmorphism, responsive, accessible.
   ============================================================ */

:root {
  --bg: #05070d;
  --bg-2: #0a0f1a;
  --panel: rgba(15, 22, 38, 0.62);
  --panel-solid: #0d1220;
  --border: rgba(148, 198, 255, 0.14);
  --border-strong: rgba(148, 198, 255, 0.28);
  --text: #e6eefc;
  --text-dim: #9fb0c8;
  --text-faint: #6b7c99;
  --cyan: #00e5ff;
  --green: #00ff9c;
  --red: #ff4d6d;
  --amber: #ffb020;
  --violet: #7c7cff;
  --cyan-glow: rgba(0, 229, 255, 0.35);
  --green-glow: rgba(0, 255, 156, 0.3);
  --red-glow: rgba(255, 77, 109, 0.3);
  --font-ui: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Rajdhani", "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Consolas", "Courier New", monospace;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
  --focus: 0 0 0 3px rgba(0, 229, 255, 0.45);
  --focus-offset: 2px;
}

* { box-sizing: border-box; }

.hidden { display: none !important; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(0, 229, 255, 0.07), transparent 60%),
    radial-gradient(900px 500px at 10% 110%, rgba(0, 255, 156, 0.05), transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

/* ---- background aesthetic ---- */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(120, 180, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 180, 255, 0.045) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 40%, transparent 100%);
}

.bg-glow {
  position: fixed;
  z-index: -1;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.14;
  pointer-events: none;
}
.bg-glow-1 { width: 480px; height: 480px; top: -160px; left: -120px; background: var(--cyan); }
.bg-glow-2 { width: 520px; height: 520px; bottom: -200px; right: -160px; background: var(--green); }

/* ---- accessibility ---- */
.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--cyan);
  color: #001018;
  font-weight: 700;
  border-radius: 8px;
  text-decoration: none;
  transition: top 0.2s ease;
}
.skip-link:focus { top: 12px; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: var(--focus-offset);
  border-radius: 6px;
}

/* ---- header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: rgba(5, 8, 15, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  background: none;
  border: 0;
  padding: 6px 8px;
  margin: 0;
  cursor: pointer;
  color: var(--text);
  border-radius: 10px;
  font-family: inherit;
  text-align: left;
}
.brand-mark {
  color: var(--cyan);
  filter: drop-shadow(0 0 10px var(--cyan-glow));
}
.brand-text strong { display: block; font-size: 14px; letter-spacing: 0.4px; }
.brand-text em {
  display: block;
  font-style: normal;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--green);
}
.header-nav { display: flex; gap: 4px; flex-wrap: wrap; flex: 1; }
.nav-link {
  background: none;
  border: 1px solid transparent;
  color: var(--text-dim);
  font-family: var(--font-ui);
  font-size: 13.5px;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 9px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.nav-link:hover { color: var(--text); background: rgba(255, 255, 255, 0.04); }
.header-right { display: flex; align-items: center; gap: 10px; }

.profile-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px 6px 6px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel);
}
.chip-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.25), rgba(0, 255, 156, 0.25));
  border: 1px solid var(--border-strong);
  color: var(--cyan);
  font-weight: 700;
  font-family: var(--font-display);
}
.chip-meta { display: grid; line-height: 1.25; }
.chip-name { font-size: 12.5px; font-weight: 700; max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chip-stats { display: flex; gap: 10px; font-size: 11px; color: var(--text-dim); }
.chip-stats b { color: var(--text); font-family: var(--font-mono); }

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  font-size: 18px;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: border-color 0.15s, transform 0.12s;
}
.icon-btn:hover { border-color: var(--border-strong); transform: translateY(-1px); }

/* ---- layout ---- */
.main-area { max-width: 1200px; margin: 0 auto; padding: 40px 20px 80px; }
.main-area:focus { outline: none; }

.screen { display: none; animation: screenIn 0.35s ease; }
.screen.active { display: block; }
@keyframes screenIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

/* ---- generic components ---- */
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.panel { padding: 32px; max-width: 560px; margin: 6vh auto 0; }
.panel h2 { font-family: var(--font-display); font-size: 26px; margin: 0 0 6px; }

.muted { color: var(--text-dim); }
.accent { color: var(--cyan); }
.accent2 { color: var(--green); }

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-family: var(--font-ui);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.12s, box-shadow 0.15s, border-color 0.15s, background 0.15s, color 0.15s;
  text-decoration: none;
  color: var(--text);
}
.btn:active { transform: translateY(1px) scale(0.99); }
.btn-lg { padding: 15px 30px; font-size: 16.5px; border-radius: 14px; }

.btn-primary {
  background: linear-gradient(135deg, #00c8e6, #00e5ff);
  color: #001318;
  box-shadow: 0 6px 24px var(--cyan-glow);
}
.btn-primary:hover { box-shadow: 0 8px 32px var(--cyan-glow); transform: translateY(-1px); }

.btn-accent {
  background: linear-gradient(135deg, #00d07f, #00ff9c);
  color: #00160e;
  box-shadow: 0 6px 24px var(--green-glow);
}
.btn-accent:hover { transform: translateY(-1px); }

.btn-accent2 {
  background: linear-gradient(135deg, #ff8a00, #ffb020);
  color: #1a0f00;
  box-shadow: 0 6px 24px rgba(255, 176, 32, 0.28);
}
.btn-accent2:hover { transform: translateY(-1px); }

.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--border-strong); background: rgba(255, 255, 255, 0.06); transform: translateY(-1px); }

.btn-danger { background: rgba(255, 77, 109, 0.14); border-color: rgba(255, 77, 109, 0.4); color: var(--red); }
.btn-danger:hover { background: rgba(255, 77, 109, 0.22); }

.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none !important; }

.actions-row { display: flex; gap: 10px; flex-wrap: wrap; }

/* ---- start screen ---- */
.start-hero { text-align: center; padding: 40px 10px 20px; max-width: 780px; margin: 0 auto; }
.hero-badge { display: inline-grid; place-items: center; }
.hero-company {
  margin: 18px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 6px;
  font-size: 14px;
  color: var(--text-faint);
  text-transform: uppercase;
}
.start-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(44px, 8vw, 84px);
  font-weight: 700;
  letter-spacing: 2px;
  margin: 4px 0 0;
  line-height: 1;
  text-shadow: 0 0 40px var(--cyan-glow);
}
.hero-sub {
  font-family: var(--font-display);
  font-size: clamp(22px, 3.6vw, 36px);
  font-weight: 600;
  letter-spacing: 8px;
  margin: 6px 0 0;
  color: var(--text-dim);
  text-transform: uppercase;
}
.hero-desc { color: var(--text-dim); max-width: 640px; margin: 22px auto 0; font-size: 16.5px; }
.hero-desc em { color: var(--green); font-style: normal; font-weight: 600; }
.hero-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 30px; }
.hero-stats { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 34px; }
.hstat {
  min-width: 96px;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--panel);
}
.hstat b { display: block; font-family: var(--font-display); font-size: 24px; color: var(--cyan); }
.hstat span { font-size: 12px; color: var(--text-dim); letter-spacing: 0.5px; text-transform: uppercase; }
.hero-edu-note { margin-top: 34px; color: var(--text-faint); font-size: 13.5px; }

/* ---- profile form ---- */
.input-row { display: flex; gap: 10px; margin-top: 10px; flex-wrap: wrap; }
.input-row input {
  flex: 1;
  min-width: 220px;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.3);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 15px;
}
.input-row input::placeholder { color: var(--text-faint); }
.input-row input:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: var(--focus);
}
.field-error { color: var(--red); font-size: 13.5px; margin: 8px 0 0; }

/* ---- hub ---- */
.hub-top { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; }
.hub-top h1 { font-family: var(--font-display); font-size: clamp(28px, 4vw, 40px); margin: 0; }
.rank-chip {
  padding: 10px 18px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 2px;
  font-size: 15px;
  color: var(--green);
  border: 1px solid rgba(0, 255, 156, 0.4);
  background: rgba(0, 255, 156, 0.08);
  box-shadow: 0 0 20px rgba(0, 255, 156, 0.15);
}
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin: 26px 0;
}
.stat-card {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--panel);
  text-align: center;
  transition: transform 0.15s, border-color 0.15s;
}
.stat-card:hover { transform: translateY(-3px); border-color: var(--border-strong); }
.stat-icon { display: block; font-size: 20px; margin-bottom: 6px; }
.stat-card b { display: block; font-family: var(--font-display); font-size: 28px; color: var(--cyan); line-height: 1.1; }
.stat-card span { font-size: 12px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; }

.hub-actions { margin: 8px 0 34px; }

.section-title { font-family: var(--font-display); font-size: 26px; margin: 34px 0 4px; }

.chapter-bar {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}
.chapter-tab {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  min-width: 96px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel);
  color: var(--text-faint);
  cursor: pointer;
  font-family: inherit;
  transition: border-color 0.18s, color 0.18s, background 0.18s;
}
.chapter-tab b { font-size: 14px; color: var(--text); }
.chapter-tab span { font-size: 11px; letter-spacing: 0.02em; }
.chapter-tab:hover { border-color: var(--border-strong); color: var(--text); }
.chapter-tab.active {
  border-color: var(--cyan);
  background: rgba(0, 229, 255, 0.08);
  color: var(--cyan);
  box-shadow: 0 0 0 1px var(--cyan), 0 8px 22px var(--cyan-glow);
}
.chapter-tab.active b { color: var(--cyan); }

.level-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; margin-top: 18px; }
.level-card {
  position: relative;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  cursor: pointer;
  transition: transform 0.18s, border-color 0.18s, box-shadow 0.18s;
  text-align: left;
  font-family: inherit;
  color: var(--text);
  overflow: hidden;
}
.level-card:hover:not(:disabled), .level-card:focus-visible:not(:disabled) { transform: translateY(-4px); border-color: var(--border-strong); }
.level-card.locked { cursor: not-allowed; opacity: 0.55; }
.level-card.completed { border-color: rgba(0, 255, 156, 0.35); }
.level-card.current { border-color: var(--cyan); box-shadow: 0 0 0 1px var(--cyan), 0 10px 30px var(--cyan-glow); }
.level-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(0, 229, 255, 0.05) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
  pointer-events: none;
}
.level-card:hover::after { transform: translateX(100%); }
.level-top { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.level-icon { font-size: 30px; filter: drop-shadow(0 0 12px rgba(0, 229, 255, 0.35)); }
.level-diff {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
}
.diff-easy { color: var(--green); background: rgba(0, 255, 156, 0.1); border: 1px solid rgba(0, 255, 156, 0.3); }
.diff-medium { color: var(--amber); background: rgba(255, 176, 32, 0.1); border: 1px solid rgba(255, 176, 32, 0.3); }
.diff-hard { color: var(--red); background: rgba(255, 77, 109, 0.1); border: 1px solid rgba(255, 77, 109, 0.3); }
.level-name { font-family: var(--font-display); font-size: 22px; font-weight: 700; margin: 12px 0 4px; }
.level-desc { font-size: 13.5px; color: var(--text-dim); margin: 0 0 14px; }
.level-meta { display: flex; justify-content: space-between; align-items: center; font-size: 12.5px; color: var(--text-faint); font-family: var(--font-mono); }
.level-meta .best { color: var(--green); }
.level-state {
  position: absolute;
  top: 14px;
  right: 14px;
  font-size: 18px;
}

/* ---- investigation screen ---- */
.inv-topbar {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.inv-titleblock h2 { font-family: var(--font-display); font-size: 24px; margin: 0; }
.inv-titleblock p { margin: 2px 0 0; font-size: 13.5px; color: var(--text-dim); }
.inv-spacer { flex: 1; }
.inv-score { text-align: right; }
.inv-score b { font-family: var(--font-mono); color: var(--cyan); font-size: 20px; }
.inv-score span { display: block; font-size: 11.5px; color: var(--text-faint); text-transform: uppercase; letter-spacing: 1px; }

.timer-wrap { width: 100px; }
.timer-num { font-family: var(--font-mono); font-weight: 600; font-size: 22px; text-align: right; line-height: 1; }
.timer-bar { height: 7px; border-radius: 4px; background: rgba(255, 255, 255, 0.08); margin-top: 6px; overflow: hidden; }
.timer-fill { height: 100%; width: 100%; border-radius: 4px; background: linear-gradient(90deg, var(--cyan), var(--green)); transition: width 0.9s linear; }
.timer-low .timer-fill { background: linear-gradient(90deg, var(--red), var(--amber)); }
.timer-low .timer-num { color: var(--red); animation: pulse 0.8s infinite; }
@keyframes pulse { 50% { opacity: 0.55; } }

.inv-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 22px; align-items: start; }
@media (max-width: 860px) { .inv-grid { grid-template-columns: 1fr; } }

.case-card { padding: 24px; }
.case-head { display: flex; gap: 10px; align-items: center; margin-bottom: 14px; flex-wrap: wrap; }
.case-pill {
  font-family: var(--font-mono);
  font-size: 12.5px;
  padding: 5px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.25);
  color: var(--text-dim);
  letter-spacing: 0.5px;
}
.threat-low { color: var(--green); border-color: rgba(0, 255, 156, 0.45); background: rgba(0, 255, 156, 0.08); }
.threat-medium { color: var(--amber); border-color: rgba(255, 176, 32, 0.45); background: rgba(255, 176, 32, 0.08); }
.threat-high { color: var(--red); border-color: rgba(255, 77, 109, 0.45); background: rgba(255, 77, 109, 0.08); }
.threat-critical { color: #ff9db0; border-color: var(--red); background: rgba(255, 77, 109, 0.14); text-shadow: 0 0 12px var(--red-glow); }
.case-topic { color: var(--cyan); border-color: rgba(0, 229, 255, 0.4); background: rgba(0, 229, 255, 0.07); }

.scenario-box {
  padding: 16px 18px;
  border-left: 3px solid var(--cyan);
  background: rgba(0, 229, 255, 0.05);
  border-radius: 0 10px 10px 0;
  font-size: 15px;
}
.scenario-box::before { content: "SCENARIO"; display: block; font-size: 10.5px; letter-spacing: 2px; color: var(--cyan); margin-bottom: 6px; font-family: var(--font-mono); }

/* ---- evidence ---- */
.evidence-block { margin-top: 20px; }
.evidence-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--text-faint);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.evidence-title .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 8px var(--green); animation: blink 1.4s infinite; }
@keyframes blink { 50% { opacity: 0.3; } }

.evidence-item { margin-bottom: 14px; }

/* fake email */
.fake-email {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(10, 16, 28, 0.85);
  overflow: hidden;
  font-size: 14px;
}
.fake-email .mail-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 14px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-faint);
}
.fake-email .mail-bar b { color: var(--text); font-family: var(--font-mono); font-weight: 600; }
.fake-email .mail-head { padding: 12px 14px; border-bottom: 1px solid var(--border); }
.fake-email .mail-subject { font-weight: 600; color: var(--text); }
.fake-email .mail-head small { display: block; color: var(--text-faint); margin-top: 5px; font-size: 12.5px; }
.fake-email .mail-head small b { color: var(--text-dim); font-family: var(--font-mono); font-weight: 500; }
.fake-email .mail-urgent {
  margin: 0 14px 12px;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 12.5px;
  color: var(--red);
  background: rgba(255, 77, 109, 0.12);
  border: 1px dashed rgba(255, 77, 109, 0.45);
}
.fake-email .mail-urgent.browser { color: var(--amber); background: rgba(255, 176, 32, 0.1); border-color: rgba(255, 176, 32, 0.4); }
.fake-email .mail-body { padding: 8px 14px 14px; font-size: 14px; color: var(--text-dim); }
.fake-email .mail-body p { margin: 8px 0; }
.fake-email .mail-link {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 6px;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.3);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 13px;
  word-break: break-all;
}
.fake-email .mail-link.danger { color: var(--red); border-color: rgba(255, 77, 109, 0.4); background: rgba(255, 77, 109, 0.08); }
.fake-email .mail-foot {
  padding: 9px 14px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-faint);
  font-family: var(--font-mono);
}

/* fake sms */
.fake-sms { border: 1px solid var(--border); border-radius: 12px; background: rgba(10, 16, 28, 0.85); padding: 14px; max-width: 420px; }
.sms-from { display: flex; align-items: center; gap: 8px; font-size: 13px; margin-bottom: 10px; }
.sms-from .phone { font-family: var(--font-mono); color: var(--text-faint); font-size: 12px; }
.sms-bubble {
  padding: 10px 13px;
  margin-bottom: 8px;
  border-radius: 14px 14px 14px 4px;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.2);
  font-size: 14px;
}
.sms-bubble .sms-link { color: var(--cyan); font-family: var(--font-mono); font-size: 12.5px; word-break: break-all; }
.sms-bubble.danger { background: rgba(255, 77, 109, 0.1); border-color: rgba(255, 77, 109, 0.35); }
.sms-bubble .sms-link.danger { color: var(--red); }
.sms-time { font-size: 11px; color: var(--text-faint); font-family: var(--font-mono); }

/* fake login page */
.fake-login { border: 1px solid var(--border); border-radius: 12px; background: rgba(10, 16, 28, 0.85); padding: 16px; max-width: 360px; }
.login-url { font-family: var(--font-mono); font-size: 12px; color: var(--text-faint); padding: 7px 10px; background: rgba(0, 0, 0, 0.35); border-radius: 8px; border: 1px solid var(--border); margin-bottom: 14px; word-break: break-all; }
.login-url .url-risk { color: var(--red); font-weight: 600; }
.fake-login h4 { margin: 0 0 12px; font-family: var(--font-display); font-size: 18px; }
.fake-login label { display: block; font-size: 12.5px; color: var(--text-dim); margin: 10px 0 4px; }
.fake-login input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.3);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 13px;
}
.fake-login .login-btn {
  width: 100%;
  margin-top: 14px;
  padding: 11px;
  border: 0;
  border-radius: 9px;
  background: linear-gradient(135deg, #00c8e6, #00e5ff);
  color: #001318;
  font-weight: 700;
  cursor: not-allowed;
}
.fake-login .login-warn { margin-top: 10px; font-size: 12px; color: var(--amber); border: 1px dashed rgba(255, 176, 32, 0.4); padding: 8px 10px; border-radius: 8px; }

/* logs + tables */
.log-box {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(3, 7, 14, 0.9);
  overflow: hidden;
}
.log-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 14px;
  background: rgba(255, 255, 255, 0.025);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-faint);
}
.log-head .dots { display: flex; gap: 5px; }
.log-head .dots i { width: 9px; height: 9px; border-radius: 50%; display: block; }
.log-head .dots i:nth-child(1) { background: #ff5f57; }
.log-head .dots i:nth-child(2) { background: #febc2e; }
.log-head .dots i:nth-child(3) { background: #28c840; }
.log-body { padding: 10px 14px; font-family: var(--font-mono); font-size: 12.5px; line-height: 1.7; overflow-x: auto; color: #b6cbe3; }
.log-line { white-space: pre; }
.log-line .ts { color: var(--text-faint); }
.log-line .ip { color: var(--violet); }
.log-line .kr { color: var(--amber); }
.log-line .arnis { color: var(--red); font-weight: 600; }
.log-line .ok { color: var(--green); }
.log-line .info { color: var(--cyan); }
.log-line .hl { background: rgba(255, 77, 109, 0.18); outline: 1px solid rgba(255, 77, 109, 0.5); border-radius: 4px; padding: 0 2px; }

.data-table { width: 100%; border-collapse: collapse; font-family: var(--font-mono); font-size: 12.5px; }
.data-table th {
  text-align: left;
  padding: 8px 10px;
  color: var(--text-faint);
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  font-size: 11px;
  white-space: nowrap;
}
.data-table td { padding: 8px 10px; border-bottom: 1px solid rgba(148, 198, 255, 0.08); white-space: nowrap; color: #b6cbe3; }
.data-table td.mono { color: var(--cyan); }
.data-table tr.flagged td { background: rgba(255, 77, 109, 0.07); color: #ffc3cd; }
.data-table tr.flagged .flag-mark { color: var(--red); }

/* fake alert */
.fake-alert { border: 1px solid var(--border); border-radius: 12px; padding: 14px; background: rgba(10, 16, 28, 0.85); }
.alert-sev { display: inline-block; font-family: var(--font-mono); font-size: 11.5px; font-weight: 700; letter-spacing: 1px; padding: 3px 9px; border-radius: 6px; margin-bottom: 8px; }
.alert-sev.s-critical { background: rgba(255, 77, 109, 0.18); color: var(--red); border: 1px solid rgba(255, 77, 109, 0.5); }
.alert-sev.s-high { background: rgba(255, 77, 109, 0.12); color: #ff9db0; border: 1px solid rgba(255, 77, 109, 0.35); }
.alert-sev.s-medium { background: rgba(255, 176, 32, 0.12); color: var(--amber); border: 1px solid rgba(255, 176, 32, 0.35); }
.alert-sev.s-low { background: rgba(0, 255, 156, 0.1); color: var(--green); border: 1px solid rgba(0, 255, 156, 0.3); }
.fake-alert h4 { margin: 4px 0 8px; font-size: 15px; }
.fake-alert p { margin: 6px 0; font-size: 13.5px; color: var(--text-dim); }
.fake-alert .alert-meta { font-family: var(--font-mono); font-size: 11.5px; color: var(--text-faint); border-top: 1px solid var(--border); margin-top: 10px; padding-top: 8px; }

/* fake messaging */
.fake-chat { border: 1px solid var(--border); border-radius: 12px; background: rgba(10, 16, 28, 0.85); padding: 14px; max-width: 480px; }
.chat-channel { font-size: 12.5px; color: var(--text-faint); font-family: var(--font-mono); margin-bottom: 10px; padding: 6px 10px; background: rgba(0, 0, 0, 0.3); border-radius: 8px; }
.chat-msg { display: flex; gap: 10px; margin-bottom: 10px; }
.chat-msg .chat-who { font-weight: 700; font-size: 13px; min-width: 74px; }
.chat-msg .chat-who.it { color: var(--cyan); }
.chat-msg .chat-who.user { color: var(--green); }
.chat-msg .chat-who.staff { color: var(--violet); }
.chat-msg p { margin: 0; font-size: 13.5px; color: var(--text-dim); }

/* fake report */
.fake-report { border: 1px solid var(--border); border-radius: 12px; background: rgba(10, 16, 28, 0.85); padding: 16px; }
.fake-report .rep-head { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border); padding-bottom: 10px; margin-bottom: 10px; }
.fake-report .rep-head b { font-family: var(--font-mono); letter-spacing: 1px; }
.fake-report .rep-head span { font-size: 12px; color: var(--text-dim); font-family: var(--font-mono); }
.fake-report dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; font-size: 13.5px; }
.fake-report dt { color: var(--text-faint); font-family: var(--font-mono); font-size: 12px; }
.fake-report dd { margin: 0; color: var(--text-dim); }

/* conclusion strip (after answer) */
.conclusion { animation: screenIn 0.3s ease; }
.conclusion-box { border-radius: 12px; padding: 16px 18px; margin-top: 16px; border: 1px solid; }
.conclusion-box.correct { border-color: rgba(0, 255, 156, 0.45); background: rgba(0, 255, 156, 0.07); }
.conclusion-box.wrong { border-color: rgba(255, 77, 109, 0.45); background: rgba(255, 77, 109, 0.09); }
.conclusion-box.timedout { border-color: rgba(255, 176, 32, 0.45); background: rgba(255, 176, 32, 0.08); }
.conclusion-box h4 { margin: 0 0 8px; font-family: var(--font-display); font-size: 19px; }
.conclusion-box.correct h4 { color: var(--green); }
.conclusion-box.wrong h4 { color: var(--red); }
.conclusion-box.timedout h4 { color: var(--amber); }
.conclusion-box p { margin: 8px 0; font-size: 14.5px; color: var(--text-dim); }
.conclusion-box .xp-row { font-family: var(--font-mono); font-size: 14px; margin-top: 10px; }
.xp-pos { color: var(--green); }
.xp-neg { color: var(--red); }
.conclusion .next-row { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }

/* ---- question & answers ---- */
.question-panel { padding: 24px; }
.question-label { font-family: var(--font-mono); font-size: 12px; letter-spacing: 2px; color: var(--cyan); text-transform: uppercase; margin-bottom: 8px; }
.question-text { font-size: 17px; font-weight: 600; margin: 0 0 18px; line-height: 1.5; }

.answer-list { display: grid; gap: 10px; }
.answer-btn {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.025);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 15px;
  text-align: left;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, transform 0.12s;
}
.answer-btn:hover:not(:disabled) { border-color: var(--border-strong); background: rgba(255, 255, 255, 0.05); transform: translateX(3px); }
.answer-btn:disabled { cursor: not-allowed; }
.answer-key {
  flex: 0 0 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  border: 1px solid var(--border-strong);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--cyan);
  background: rgba(0, 229, 255, 0.06);
}
.answer-btn.selected { border-color: var(--cyan); box-shadow: 0 0 0 1px var(--cyan); background: rgba(0, 229, 255, 0.08); }
.answer-btn.correct { border-color: var(--green); background: rgba(0, 255, 156, 0.12); }
.answer-btn.correct .answer-key { background: var(--green); color: #00160e; border-color: var(--green); }
.answer-btn.wrong { border-color: var(--red); background: rgba(255, 77, 109, 0.12); }
.answer-btn.wrong .answer-key { background: var(--red); color: #2a0009; border-color: var(--red); }
.answer-btn.faded { opacity: 0.45; }

.hint-box { margin-top: 16px; }
.hint-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 10px;
  border: 1px solid rgba(255, 176, 32, 0.4);
  background: rgba(255, 176, 32, 0.08);
  color: var(--amber);
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
}
.hint-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.hint-reveal {
  margin-top: 10px;
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px dashed rgba(255, 176, 32, 0.45);
  background: rgba(255, 176, 32, 0.06);
  font-size: 14px;
  color: #ffe3b3;
  animation: screenIn 0.25s ease;
}

/* ---- results ---- */
.results-wrap { max-width: 720px; margin: 0 auto; }
.results-hero { text-align: center; padding: 36px 30px; }
.results-hero .res-icon { font-size: 48px; }
.results-hero h1 { font-family: var(--font-display); font-size: 40px; margin: 12px 0 4px; color: var(--green); text-shadow: 0 0 30px var(--green-glow); }
.results-score-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 12px; margin: 26px 0; }
.res-stat { padding: 16px; border-radius: 12px; background: rgba(255, 255, 255, 0.03); border: 1px solid var(--border); text-align: center; }
.res-stat b { display: block; font-family: var(--font-display); font-size: 26px; color: var(--cyan); }
.res-stat span { font-size: 11.5px; letter-spacing: 1px; text-transform: uppercase; color: var(--text-faint); }
.results-breakdown { display: grid; gap: 26px; margin-top: 26px; }
.brk-title { font-family: var(--font-display); font-size: 18px; margin: 0 0 10px; }
.brk-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.topic-tag { font-size: 12.5px; padding: 6px 12px; border-radius: 999px; border: 1px solid var(--border); color: var(--text-dim); }
.topic-tag.mastered { color: var(--green); border-color: rgba(0, 255, 156, 0.4); background: rgba(0, 255, 156, 0.07); }
.topic-tag.improve { color: var(--amber); border-color: rgba(255, 176, 32, 0.4); background: rgba(255, 176, 32, 0.07); }
.results-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 30px; }

.streak-banner {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid rgba(255, 176, 32, 0.4);
  background: rgba(255, 176, 32, 0.08);
  color: var(--amber);
  font-weight: 700;
  margin-top: 10px;
}

/* ---- SOC mode ---- */
.soc-board { padding: 26px; }
.soc-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.soc-head h2 { font-family: var(--font-display); font-size: 28px; margin: 0; }
.soc-station { margin: 20px 0 0; }
.soc-question { font-size: 16px; font-weight: 600; margin: 14px 0 8px; }
.soc-options { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; }
.soc-option {
  padding: 13px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  font-family: var(--font-ui);
  font-weight: 700;
  cursor: pointer;
  font-size: 14px;
  letter-spacing: 0.6px;
  transition: border-color 0.15s, transform 0.12s;
}
.soc-option:hover:not(:disabled) { transform: translateY(-2px); }
.soc-option.investigate:hover { border-color: var(--cyan); color: var(--cyan); }
.soc-option.block:hover { border-color: var(--red); color: var(--red); }
.soc-option.ignore:hover { border-color: var(--text-dim); }
.soc-option.escalate:hover { border-color: var(--amber); color: var(--amber); }
.soc-option.best { border-color: var(--green); background: rgba(0, 255, 156, 0.1); color: var(--green); }
.soc-option.good { border-color: rgba(0, 229, 255, 0.5); background: rgba(0, 229, 255, 0.08); color: var(--cyan); }
.soc-option.bad { border-color: var(--red); background: rgba(255, 77, 109, 0.1); color: var(--red); opacity: 0.6; }
.soc-option.picked { outline: 2px solid var(--cyan); outline-offset: 1px; }
.soc-feed { margin-top: 20px; }
.soc-feed-title { font-family: var(--font-mono); font-size: 12px; letter-spacing: 2px; color: var(--text-faint); text-transform: uppercase; margin-bottom: 10px; }

/* ---- daily ---- */
.daily-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid rgba(255, 176, 32, 0.45);
  background: rgba(255, 176, 32, 0.09);
  color: var(--amber);
  font-weight: 700;
  font-size: 15px;
}
.daily-done-note { margin-top: 14px; padding: 14px 18px; border-radius: 12px; border: 1px dashed var(--border-strong); color: var(--text-dim); }

/* ---- modals ---- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: rgba(3, 6, 12, 0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 5vh 16px 40px;
  overflow-y: auto;
}
.modal {
  width: min(680px, 100%);
  border-radius: 18px;
  animation: screenIn 0.25s ease;
}
.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}
.modal-head h2 { font-family: var(--font-display); font-size: 22px; margin: 0; }
.modal-body { padding: 20px 24px; }
.modal-foot { padding: 14px 24px 22px; display: flex; justify-content: flex-end; gap: 10px; }
.how-steps { padding-left: 20px; color: var(--text-dim); line-height: 1.7; }
.how-steps b { color: var(--text); }
.how-score { margin: 18px 0; }
.how-score table { width: 100%; border-collapse: collapse; font-size: 14px; }
.how-score caption { text-align: left; font-family: var(--font-mono); font-size: 12px; letter-spacing: 2px; color: var(--cyan); margin-bottom: 8px; }
.how-score td { padding: 8px 6px; border-bottom: 1px solid rgba(148, 198, 255, 0.1); color: var(--text-dim); }
.how-score .pos { color: var(--green); font-family: var(--font-mono); text-align: right; }
.how-score .neg { color: var(--red); font-family: var(--font-mono); text-align: right; }
.edu-note { margin-top: 16px; padding: 12px 16px; border-radius: 10px; background: rgba(0, 229, 255, 0.05); border: 1px solid rgba(0, 229, 255, 0.2); font-size: 13.5px; color: var(--text-dim); }

/* leaderboard */
.lb-self { outline: 1px solid rgba(0, 229, 255, 0.6); box-shadow: 0 0 24px rgba(0, 229, 255, 0.12); }
.lb-row {
  display: grid;
  grid-template-columns: 44px 1fr auto auto auto;
  gap: 12px;
  align-items: center;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  margin-bottom: 8px;
  background: rgba(255, 255, 255, 0.02);
}
.lb-rank { font-family: var(--font-display); font-weight: 700; font-size: 18px; color: var(--text-faint); }
.lb-rank.top { color: var(--amber); }
.lb-name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lb-xp { font-family: var(--font-mono); color: var(--cyan); text-align: right; }
.lb-acc { font-family: var(--font-mono); color: var(--green); text-align: right; }
.lb-streak { font-family: var(--font-mono); color: var(--amber); text-align: right; }
@media (max-width: 560px) {
  .lb-row { grid-template-columns: 36px 1fr auto; }
  .lb-acc, .lb-streak { display: none; }
}

/* badges grid */
.badge-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.badge-cell { padding: 18px 14px; border-radius: 14px; border: 1px solid var(--border); background: rgba(255, 255, 255, 0.02); text-align: center; transition: transform 0.15s; }
.badge-cell.earned { border-color: rgba(0, 229, 255, 0.4); background: rgba(0, 229, 255, 0.06); }
.badge-cell:not(.earned) { opacity: 0.4; filter: grayscale(0.8); }
.badge-cell .badge-icon { font-size: 32px; display: block; margin-bottom: 6px; }
.badge-cell b { font-size: 13px; display: block; }
.badge-cell span { font-size: 11.5px; color: var(--text-faint); }

/* toasts */
.toast-region {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: min(360px, calc(100vw - 40px));
}
.toast {
  padding: 14px 18px;
  border-radius: 12px;
  border: 1px solid var(--border-strong);
  background: rgba(13, 18, 32, 0.96);
  box-shadow: var(--shadow);
  font-size: 14px;
  display: flex;
  gap: 10px;
  align-items: center;
  animation: toastIn 0.3s ease;
  border-left: 4px solid var(--cyan);
}
.toast.success { border-left-color: var(--green); }
.toast.error { border-left-color: var(--red); }
.toast.warn { border-left-color: var(--amber); }
.toast.out { animation: toastOut 0.3s ease forwards; }
@keyframes toastIn { from { transform: translateX(30px); opacity: 0; } to { transform: none; opacity: 1; } }
@keyframes toastOut { to { transform: translateX(30px); opacity: 0; } }

/* share */
.share-box { display: flex; gap: 8px; margin-top: 12px; justify-content: center; flex-wrap: wrap; }
.share-box button { font-family: var(--font-mono); font-size: 12.5px; }

/* progress within a run */
.run-progress { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 12px; }
.run-dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(255, 255, 255, 0.12); }
.run-dot.done-correct { background: var(--green); box-shadow: 0 0 8px var(--green); }
.run-dot.done-wrong { background: var(--red); box-shadow: 0 0 8px var(--red); }
.run-dot.active { background: var(--cyan); box-shadow: 0 0 10px var(--cyan); animation: pulse 1s infinite; }

/* ---- footer ---- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 34px 20px;
  background: rgba(5, 8, 15, 0.5);
}
.footer-inner { max-width: 1200px; margin: 0 auto; text-align: center; }
.footer-inner p { margin: 4px 0; font-size: 13.5px; }
.footer-inner strong { color: var(--cyan); letter-spacing: 0.5px; }

/* ---- size helpers ---- */
.btn-sm { padding: 9px 16px; font-size: 14px; border-radius: 10px; }

/* ---- rating & feedback ---- */
.footer-actions { margin: 14px 0 6px; }

.rate-card {
  margin-top: 26px;
  padding: 22px 24px;
  display: grid;
  gap: 12px;
  justify-items: center;
  text-align: center;
}
.rate-head { display: grid; gap: 4px; }
.rate-head b { font-family: var(--font-display); font-size: 19px; }
.rate-head span { font-size: 13px; }

.stars { display: inline-flex; gap: 6px; }
.star {
  background: none;
  border: 0;
  padding: 2px 4px;
  font-size: 34px;
  line-height: 1;
  cursor: pointer;
  color: var(--text-faint);
  transition: transform 0.12s, color 0.12s, text-shadow 0.12s;
}
.star:hover, .star:focus-visible { transform: translateY(-2px) scale(1.08); }
.star.on { color: var(--amber); text-shadow: 0 0 18px rgba(255, 176, 32, 0.55); }
.stars:hover .star { color: var(--amber); }
.stars:hover .star:hover ~ .star { color: var(--text-faint); text-shadow: none; }

.fb-body { display: grid; gap: 18px; }
.fb-field { display: grid; gap: 8px; }
.fb-label { font-size: 13.5px; font-weight: 600; color: var(--text); }
.fb-label .req { color: var(--red); }
.fb-label .muted { font-weight: 400; }

.fb-stars { display: inline-flex; gap: 6px; }
.fb-stars .star { font-size: 38px; }

.fb-cats { display: flex; flex-wrap: wrap; gap: 8px; }
.fb-cat {
  padding: 9px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-dim);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s, transform 0.12s;
}
.fb-cat:hover { border-color: var(--border-strong); color: var(--text); transform: translateY(-1px); }
.fb-cat.active {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 229, 255, 0.1);
  box-shadow: 0 0 0 1px var(--cyan);
}

.fb-body textarea,
.fb-body input[type="email"] {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.3);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 14.5px;
  resize: vertical;
}
.fb-body textarea::placeholder,
.fb-body input::placeholder { color: var(--text-faint); }
.fb-body textarea:focus,
.fb-body input[type="email"]:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: var(--focus);
}

.fb-status {
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 13.5px;
  border: 1px solid rgba(255, 176, 32, 0.45);
  background: rgba(255, 176, 32, 0.08);
  color: #ffe3b3;
}
.fb-status.fb-ok {
  border-color: rgba(0, 255, 156, 0.45);
  background: rgba(0, 255, 156, 0.08);
  color: #c9ffe6;
}
.fb-mail { color: var(--cyan); font-weight: 600; }
.fb-privacy { font-size: 12px; margin: 0; }
kbd {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 1px 6px;
  border-radius: 5px;
  border: 1px solid var(--border-strong);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-dim);
}

/* ---- responsive ---- */
img, svg { max-width: 100%; }
body { overflow-x: hidden; }

@media (max-width: 880px) {
  .inv-topbar { gap: 10px; }
  .header-nav {
    order: 4;
    width: 100%;
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 2px;
  }
  .header-nav::-webkit-scrollbar { display: none; }
  .header-nav .nav-link { white-space: nowrap; }
  .header-inner { gap: 10px; }
  .header-right { margin-left: auto; }
}

@media (max-width: 640px) {
  .main-area { padding: 24px 14px 60px; }
  .panel { padding: 22px; }
  .case-card, .question-panel { padding: 18px; }
  .soc-board { padding: 20px; }
  .hub-top { align-items: flex-start; }
  .hub-top h1 { font-size: clamp(24px, 7vw, 32px); }
  .input-row .btn { width: 100%; }
  .timer-wrap { width: 80px; }
  .inv-score b { font-size: 18px; }
  .results-hero { padding: 28px 18px; }
  .results-hero h1 { font-size: clamp(26px, 8vw, 34px); }
  .results-score-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .res-stat b { font-size: 22px; }
  .results-actions .btn { flex: 1 1 100%; }
  .level-grid { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: repeat(auto-fit, minmax(min(140px, 100%), 1fr)); gap: 10px; }
  .chapter-tab { min-width: 84px; }
  .modal-head { padding: 16px 18px; }
  .modal-body { padding: 18px; }
  .modal-foot { padding: 12px 18px 18px; }
  .modal-foot .btn { flex: 1 1 auto; }
  .badge-grid { grid-template-columns: repeat(auto-fill, minmax(min(140px, 100%), 1fr)); }
  .fake-sms, .fake-chat, .fake-report { max-width: 100%; }
  .toast-region { left: 12px; right: 12px; bottom: 12px; max-width: none; }
  .rate-card { padding: 20px 16px; }
}

@media (max-width: 480px) {
  body { font-size: 15px; }
  .header-inner { padding: 10px 12px; }
  .brand-text em { letter-spacing: 1px; }
  .chip-stats { display: none; }
  .chip-name { max-width: 84px; }
  .hero-buttons { flex-direction: column; }
  .hero-buttons .btn { width: 100%; }
  .hero-stats { gap: 10px; }
  .hstat { flex: 1 1 42%; min-width: 0; padding: 12px; }
  .hstat b { font-size: 21px; }
  .answer-btn { padding: 13px 14px; font-size: 14.5px; gap: 11px; }
  .answer-key { flex-basis: 30px; height: 30px; font-size: 15px; }
  .question-text { font-size: 16px; }
  .inv-titleblock h2 { font-size: 20px; }
  .timer-num { font-size: 19px; }
  .star { font-size: 30px; }
  .fb-stars .star { font-size: 34px; }
  .soc-options { grid-template-columns: 1fr 1fr; }
  .soc-option { padding: 12px 8px; font-size: 13px; }
  .level-name { font-size: 19px; }
  .section-title { font-size: 22px; }
}

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}