/* ===== Theme: Orange & Black ===== */
:root {
  --orange-1: #ff8a00;
  --orange-2: #ff5e00;
  --orange-3: #ffb347;
  --orange-soft: #ff9d3d;
  --black:     #000000;
  --dark-1:    #0a0a0a;
  --dark-2:    #141414;
  --dark-3:    #1f1f1f;
  --dark-4:    #2a2a2a;
  --gray:      #888888;
  --text:      #f5f5f5;
  --muted:     #999999;
  --ok:        #2ecc71;
  --bad:       #ff4757;
  --shadow:    0 10px 30px rgba(255, 94, 0, 0.25);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--black);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

body {
  background:
    radial-gradient(circle at 20% 0%, rgba(255, 94, 0, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 100%, rgba(255, 138, 0, 0.10) 0%, transparent 50%),
    var(--black);
}

/* ===== Views (SPA routing) ===== */
.view { display: none; }
.view.active { display: block; animation: fadeIn .35s ease; }
@keyframes fadeIn { from {opacity:0; transform: translateY(8px);} to {opacity:1;} }

/* ===== Top Bar ===== */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 32px;
  background: linear-gradient(90deg, var(--orange-1), var(--orange-2));
  color: #fff;
  box-shadow: 0 4px 20px rgba(255, 94, 0, 0.4);
  position: sticky; top: 0; z-index: 50;
  border-bottom: 2px solid var(--orange-3);
}
.topbar.dark {
  background: linear-gradient(90deg, var(--dark-2), var(--dark-3));
  border-bottom: 2px solid var(--orange-1);
}
.logo { display:flex; align-items:center; gap:10px; font-weight: 800; font-size: 22px; }
.logo-mark { font-size: 26px; }
.topnav { display: flex; gap: 22px; }
.topnav a { color:#fff; text-decoration:none; font-weight:600; opacity:.85; }
.topnav a:hover, .topnav a.active { opacity:1; border-bottom: 2px solid var(--orange-3); padding-bottom: 2px; }

.btn-primary {
  background: linear-gradient(90deg, var(--orange-1), var(--orange-2));
  color: #fff; border: none; padding: 10px 20px; border-radius: 999px;
  font-weight: 700; cursor: pointer; box-shadow: 0 6px 14px rgba(255,94,0,.5);
  transition: transform .15s, box-shadow .15s;
  text-decoration: none; display: inline-block;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(255,94,0,.7); }
.btn-primary.big { padding: 14px 28px; font-size: 17px; }
.btn-ghost {
  background: transparent; color:#fff; border: 2px solid var(--orange-3);
  padding: 8px 18px; border-radius: 999px; font-weight:700;
  cursor:pointer; text-decoration:none; display:inline-block;
  transition: all .15s;
}
.btn-ghost.big { padding: 12px 24px; font-size: 16px; }
.btn-ghost:hover { background: var(--orange-1); color: #000; border-color: var(--orange-1); }

/* ===== Hero ===== */
.hero {
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; align-items: center;
  padding: 60px 40px; max-width: 1200px; margin: 0 auto;
}
.hero h1 { font-size: 52px; line-height: 1.1; margin-bottom: 16px; color: #fff; }
.hero h1 .accent {
  background: linear-gradient(90deg, var(--orange-1), var(--orange-3));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p { font-size: 18px; color: #bbb; margin-bottom: 24px; max-width: 540px; }
.hero-buttons { display: flex; gap: 14px; margin-bottom: 36px; }
.hero-illu { font-size: 180px; text-align: center; filter: drop-shadow(0 0 30px rgba(255, 138, 0, 0.5)); }

.stats-row { display: flex; gap: 32px; }
.stats-row > div { display: flex; flex-direction: column; }
.stats-row strong { font-size: 28px; color: var(--orange-3); }
.stats-row span { color: var(--muted); font-size: 13px; }

/* ===== Card Section (math arena) ===== */
.card-section {
  max-width: 1000px; margin: 30px auto; padding: 40px;
  background: linear-gradient(180deg, var(--dark-1), var(--dark-2));
  border-radius: 24px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 138, 0, 0.2);
  border: 1px solid var(--dark-4);
}
.card-section h2 { font-size: 30px; margin-bottom: 8px; color: var(--orange-3); }
.muted { color: var(--muted); margin-bottom: 20px; }

/* ===== Math Game ===== */
.math-arena { display: grid; grid-template-columns: 220px 1fr 220px; gap: 24px; margin-top: 24px; }
.math-stats { display: flex; flex-direction: column; gap: 12px; }
.ms-box {
  background: linear-gradient(135deg, var(--dark-2), var(--dark-3));
  border: 2px solid var(--dark-4); border-radius: 16px; padding: 14px;
  display: flex; align-items: center; gap: 10px;
  transition: border-color .2s;
}
.ms-box:hover { border-color: var(--orange-1); }
.ms-box span { font-size: 22px; }
.ms-box b { font-size: 22px; display: block; color: #fff; }
.ms-box label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; }
.ms-box.ok b { color: var(--ok); }
.ms-box.bad b { color: var(--bad); }
.ms-box.time b { color: var(--orange-3); }
.ms-box.score b { color: var(--orange-1); }

.math-question-wrap {
  background: linear-gradient(135deg, var(--dark-2), var(--black));
  color: #fff; border-radius: 20px; padding: 30px; text-align: center;
  display: flex; flex-direction: column; gap: 18px; justify-content: center;
  border: 2px solid var(--orange-1);
  box-shadow: 0 0 30px rgba(255, 138, 0, 0.2);
}
.math-status { font-size: 14px; opacity: .85; min-height: 20px; color: var(--orange-3); }
.math-question { font-size: 56px; font-weight: 800; letter-spacing: 4px; }
.q-num, .q-ans { color: var(--orange-1); text-shadow: 0 0 20px rgba(255, 138, 0, 0.5); }
.q-op, .q-eq { color: #fff; opacity: .7; }

#math-input {
  font-size: 36px; text-align: center; padding: 12px;
  border: 3px solid var(--orange-1); border-radius: 12px;
  background: var(--dark-3); color: var(--orange-3); font-weight: 800;
  width: 100%; max-width: 220px; margin: 0 auto; outline: none;
}
#math-input:focus { border-color: var(--orange-3); box-shadow: 0 0 0 4px rgba(255, 138, 0, 0.3); }
#math-input:disabled { opacity: .4; }

.math-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

.math-leaderboard {
  background: var(--dark-2); border-radius: 16px; padding: 16px;
  border: 2px dashed var(--orange-1);
}
.math-leaderboard h3 { font-size: 15px; margin-bottom: 10px; color: var(--orange-3); }
.math-leaderboard ol { padding-left: 22px; font-size: 14px; color: #ccc; }
.math-leaderboard li { margin-bottom: 6px; }
.math-leaderboard li .lb-score { color: var(--orange-1); font-weight: 800; float: right; }
.math-leaderboard li.muted { color: var(--muted); }

/* ===== Modal (results) ===== */
.modal {
  display: none; position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.9); z-index: 100;
  align-items: center; justify-content: center;
}
.modal.show { display: flex; animation: fadeIn .25s; }
.modal-box {
  background: linear-gradient(180deg, var(--dark-1), var(--dark-2));
  border-radius: 24px; padding: 36px; max-width: 460px; width: 90%;
  text-align: center; box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
  border: 2px solid var(--orange-1);
}
.modal-box h2 { font-size: 32px; margin-bottom: 20px; color: var(--orange-3); }
.result-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 20px; }
.result-grid > div {
  background: var(--dark-3); border: 2px solid var(--dark-4);
  border-radius: 12px; padding: 12px;
}
.result-grid b { display: block; font-size: 28px; color: var(--orange-1); }
.result-grid span { font-size: 12px; color: var(--muted); text-transform: uppercase; }
.r-medal { font-size: 60px; margin: 14px 0; min-height: 80px; }
.modal-actions { display: flex; gap: 10px; justify-content: center; margin-top: 10px; }

/* ===== Features ===== */
.features {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  max-width: 1100px; margin: 60px auto; padding: 0 40px;
}
.feature {
  background: linear-gradient(180deg, var(--dark-2), var(--dark-3));
  border-radius: 20px; padding: 30px; text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  transition: transform .2s, border-color .2s;
  border: 1px solid var(--dark-4);
}
.feature:hover { transform: translateY(-4px); border-color: var(--orange-1); }
.ficon { font-size: 50px; margin-bottom: 12px; filter: drop-shadow(0 0 10px rgba(255, 138, 0, 0.5)); }
.feature h3 { margin-bottom: 8px; color: var(--orange-3); }
.feature p { color: #bbb; }

.footer { text-align: center; padding: 30px; color: var(--muted); }

/* ===== Secret Trigger Button ===== */
#secret-trigger {
  position: fixed; bottom: 12px; right: 12px; z-index: 200;
  width: 30px; height: 30px; border-radius: 50%;
  background: rgba(255, 138, 0, 0.1); color: rgba(255, 138, 0, 0.4);
  border: 1px solid rgba(255, 138, 0, 0.2);
  font-size: 18px; font-weight: 700;
  cursor: pointer; transition: all .2s;
}
#secret-trigger:hover {
  background: var(--orange-1); color: #000; border-color: var(--orange-1);
  transform: scale(1.15);
  box-shadow: 0 0 20px rgba(255, 138, 0, 0.8);
}

/* ===== Code Panel ===== */
.code-panel {
  position: fixed; left: 0; right: 0; bottom: 0;
  background: linear-gradient(180deg, rgba(20, 20, 20, 0.98), rgba(0, 0, 0, 0.98));
  color: #fff; padding: 20px; z-index: 150;
  transform: translateY(100%); transition: transform .35s cubic-bezier(.2,.8,.2,1);
  box-shadow: 0 -10px 30px rgba(255, 94, 0, 0.3);
  border-top: 2px solid var(--orange-1);
}
.code-panel.show { transform: translateY(0); }
.code-box { max-width: 420px; margin: 0 auto; text-align: center; }
.code-label { font-weight: 700; margin-bottom: 12px; letter-spacing: 1px; color: var(--orange-3); }
.code-inputs { display: flex; gap: 10px; justify-content: center; }
.code-digit {
  width: 56px; height: 64px; text-align: center;
  font-size: 32px; font-weight: 800; color: var(--orange-1);
  background: var(--dark-3); border: 2px solid var(--orange-1);
  border-radius: 12px; outline: none;
}
.code-digit:focus { border-color: var(--orange-3); background: var(--dark-2); box-shadow: 0 0 15px rgba(255, 138, 0, 0.5); }
.code-msg { margin-top: 10px; min-height: 20px; font-size: 14px; color: var(--orange-3); }
.code-msg.bad { color: var(--bad); }

/* ===== Games Dashboard ===== */
.games-hero { text-align: center; padding: 50px 20px 20px; }
.games-hero h1 { font-size: 42px; margin-bottom: 10px; color: #fff; }
.games-hero h1 .accent {
  background: linear-gradient(90deg, var(--orange-1), var(--orange-3));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.games-hero p { color: #bbb; }

.games-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px; max-width: 1100px; margin: 30px auto; padding: 0 30px 50px;
}
.game-card {
  background: linear-gradient(180deg, var(--dark-2), var(--dark-3));
  border-radius: 20px; padding: 30px 20px; text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  cursor: pointer; transition: all .2s;
  border: 2px solid var(--dark-4);
}
.game-card:hover {
  transform: translateY(-6px);
  border-color: var(--orange-1);
  box-shadow: 0 15px 40px rgba(255, 94, 0, 0.4);
}
.gc-emoji { font-size: 70px; margin-bottom: 12px; filter: drop-shadow(0 0 15px rgba(255, 138, 0, 0.5)); }
.game-card h3 { margin-bottom: 8px; color: var(--orange-3); }
.game-card p { color: #aaa; font-size: 14px; margin-bottom: 16px; }

/* ===== Game Pages ===== */
.game-page { display: flex; flex-direction: column; align-items: center; padding: 30px 20px; }
.snake-hud, .pong-hud {
  display: flex; gap: 30px; margin-bottom: 16px; font-size: 20px; font-weight: 700;
  color: #fff; background: var(--dark-2); padding: 10px 20px; border-radius: 12px;
  border: 1px solid var(--orange-1);
}
#snake-canvas, #pong-canvas {
  background: var(--black); border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7), 0 0 30px rgba(255, 138, 0, 0.2);
  max-width: 100%; height: auto; border: 3px solid var(--orange-1);
}
.snake-controls-hint { color: #aaa; margin-top: 12px; opacity: .9; }
#snake-start { margin-top: 14px; }

/* ===== Clicker ===== */
.clicker-page { gap: 20px; }
.clicker-stats { color: #fff; text-align: center; }
.clicker-stats h2 { font-size: 64px; color: var(--orange-1); text-shadow: 0 0 30px rgba(255, 138, 0, 0.5); }
.clicker-stats p { font-size: 18px; opacity: .85; color: #ccc; }
.cookie-btn {
  width: 180px; height: 180px; font-size: 100px; border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #f4a460, #5a2a0a);
  border: 6px solid var(--orange-1); cursor: pointer;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 40px rgba(255, 138, 0, 0.4);
  transition: transform .08s; user-select: none;
}
.cookie-btn:active { transform: scale(.92); }
.upgrades {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px; width: 100%; max-width: 700px; margin-top: 20px;
}
.upgrade {
  background: var(--dark-2); border: 2px solid var(--dark-4); border-radius: 12px;
  padding: 12px; cursor: pointer; text-align: left; transition: all .15s;
  color: #fff;
}
.upgrade:hover:not(:disabled) {
  border-color: var(--orange-1); transform: translateY(-2px);
  box-shadow: 0 5px 20px rgba(255, 138, 0, 0.3);
}
.upgrade:disabled { opacity: .5; cursor: not-allowed; }
.upgrade h4 { color: var(--orange-3); }
.upgrade .up-cost { color: var(--orange-1); font-weight: 800; }
.upgrade .up-owned { float: right; color: var(--muted); }
.upgrade p { color: #aaa; font-size: 13px; }

/* ===== Color Rush ===== */
.color-page { gap: 20px; color: #fff; text-align: center; }
.color-page h2 { color: var(--orange-3); }
.color-word { font-size: 70px; font-weight: 900; margin: 20px 0; text-shadow: 0 4px 20px rgba(0, 0, 0, 0.8); }
.color-grid { display: grid; grid-template-columns: repeat(2, 140px); gap: 14px; }
.color-cell {
  width: 140px; height: 140px; border-radius: 16px; cursor: pointer;
  border: 4px solid transparent; transition: transform .1s;
}
.color-cell:active { transform: scale(.95); }
.color-cell.correct { animation: pulseOk .4s; }
.color-cell.wrong { animation: shake .3s; }
@keyframes pulseOk { 50% { box-shadow: 0 0 30px var(--ok); } }
@keyframes shake { 25%,75% { transform: translateX(-8px); } 50% { transform: translateX(8px); } }
.color-hud { display: flex; gap: 24px; align-items: center; margin-top: 20px; font-size: 18px; }
.color-hud b { color: var(--orange-1); }

/* ===== Responsive ===== */
@media (max-width: 800px) {
  .hero { grid-template-columns: 1fr; padding: 30px 20px; }
  .hero h1 { font-size: 36px; }
  .hero-illu { font-size: 100px; }
  .math-arena { grid-template-columns: 1fr; }
  .features { grid-template-columns: 1fr; }
  .topnav { display: none; }
  .code-digit { width: 48px; height: 56px; font-size: 26px; }
  #snake-canvas, #pong-canvas { width: 100%; }
  .color-grid { grid-template-columns: repeat(2, 110px); }
  .color-cell { width: 110px; height: 110px; }
}