/* ============================================================
   CS Kids — Pixel Art Cozy Theme
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');

:root {
  /* Cozy pixel palette */
  --primary:        #c8763a;
  --primary-dark:   #a05a28;
  --primary-light:  #f5dfc0;
  --secondary:      #e8a060;
  --accent:         #6aab6e;
  --accent-light:   #c8e8ca;
  --rose:           #d47880;
  --rose-light:     #f8d8da;
  --lavender:       #9878c0;
  --lavender-light: #e0d0f5;
  --gold:           #d4a030;
  --gold-light:     #f8e8a8;
  --sky:            #5898d8;
  --sky-light:      #c8e0f8;

  --bg:             #1a1a2e;
  --bg2:            #16213e;
  --bg3:            #0f3460;
  --card-bg:        #1e2a4a;
  --card-border:    #2e4070;

  --text:           #f0e8d8;
  --text-mid:       #c8b898;
  --text-light:     #8090b8;

  --shadow-sm:  0 4px 0 rgba(0,0,0,.4), 0 2px 8px rgba(0,0,0,.3);
  --shadow:     0 6px 0 rgba(0,0,0,.5), 0 4px 16px rgba(0,0,0,.4);
  --shadow-lg:  0 8px 0 rgba(0,0,0,.6), 0 6px 24px rgba(0,0,0,.5);

  --radius-sm:  0px;
  --radius:     0px;
  --radius-lg:  0px;

  /* Pixel border style */
  --pixel-border: 3px solid;
}

/* ===== PIXEL FONT ===== */
.pixel, .navbar .logo, .section-title h2, .hero h1,
.grade-tab, .btn, h1, h2, h3 {
  font-family: 'Press Start 2P', 'Mitr', monospace;
  image-rendering: pixelated;
}

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

body {
  font-family: 'Sarabun', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  font-size: 34px;
  line-height: 1.8;
  /* Pixel grid background */
  background-image:
    linear-gradient(rgba(46,64,112,.3) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46,64,112,.3) 1px, transparent 1px);
  background-size: 16px 16px;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb {
  background: var(--primary);
  border: 2px solid var(--bg2);
  image-rendering: pixelated;
}

/* ===== PIXEL BOX SHADOW (pressed look) ===== */
.pixel-box {
  box-shadow: 4px 4px 0 #000, inset -2px -2px 0 rgba(0,0,0,.4), inset 2px 2px 0 rgba(255,255,255,.1);
}

/* ===== NAVBAR ===== */
.navbar {
  background: var(--bg2);
  color: var(--text);
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 4px solid var(--primary);
  box-shadow: 0 4px 0 #000;
  image-rendering: pixelated;
}

.navbar::after {
  content: '';
  position: absolute;
  bottom: -8px; left: 0; right: 0;
  height: 4px;
  background: var(--accent);
}

.navbar .logo {
  display: flex; align-items: center; gap: 10px;
  font-family: 'Press Start 2P', monospace;
  font-size: 1.9rem; font-weight: 400;
  text-decoration: none; color: var(--gold);
  letter-spacing: 0.02em;
  text-shadow: 2px 2px 0 #000;
}

.navbar .logo .logo-icon {
  width: 32px; height: 32px;
  background: var(--primary);
  border: 3px solid #000;
  box-shadow: 2px 2px 0 #000;
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem;
  image-rendering: pixelated;
}

.nav-links {
  display: flex; gap: 0; list-style: none;
}

.nav-links a {
  color: var(--text-mid);
  text-decoration: none;
  padding: 6px 12px;
  font-size: 1.6rem;
  font-family: 'Press Start 2P', monospace;
  font-weight: 400;
  transition: all 0.1s;
  white-space: nowrap;
  border: 2px solid transparent;
}

.nav-links a:hover {
  color: var(--text);
  background: rgba(200,118,58,.2);
  border-color: var(--primary);
  box-shadow: 2px 2px 0 #000;
}
.nav-links a.active {
  color: var(--gold);
  background: rgba(212,160,48,.15);
  border-color: var(--gold);
  box-shadow: 2px 2px 0 #000;
}

.hamburger { display: none; font-size: 3.8rem; cursor: pointer; color: var(--text); }

/* ===== HERO ===== */
.hero {
  background: var(--bg2);
  color: var(--text);
  padding: 5rem 2.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  border-bottom: 4px solid var(--primary);
}

/* Pixel stars */
.hero::before {
  content: '★ ✦ ★ ✦ ★ ✦ ★ ✦ ★ ✦ ★ ✦ ★';
  position: absolute; top: 1rem; left: 0; right: 0;
  font-size: 1.2rem; color: rgba(200,120,60,.2);
  letter-spacing: 2rem; white-space: nowrap;
  pointer-events: none;
}

.hero-deco {
  position: absolute; pointer-events: none;
  font-size: 5rem; line-height: 1;
  opacity: .08; image-rendering: pixelated;
}
.hero-deco-1 { top: 10px; left: 10px; transform: rotate(-15deg); }
.hero-deco-2 { bottom: 10px; right: 40px; transform: rotate(10deg); }
.hero-deco-3 { top: 30px; right: 20%; transform: rotate(5deg); font-size: 3rem; opacity:.06; }

.hero-tag {
  display: inline-block;
  background: var(--bg3);
  border: 3px solid var(--gold);
  box-shadow: 3px 3px 0 #000;
  color: var(--gold);
  padding: 6px 18px;
  font-size: 1.44rem;
  font-family: 'Press Start 2P', monospace;
  font-weight: 400;
  letter-spacing: 0.08em;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-family: 'Press Start 2P', monospace;
  font-size: 3.8rem;
  font-weight: 400;
  line-height: 1.8;
  margin-bottom: 1.5rem;
  color: var(--text);
  text-shadow: 3px 3px 0 #000, 4px 4px 0 rgba(200,118,58,.5);
}

.hero h1 span { color: var(--gold); }

.hero p {
  font-size: 1.9rem;
  color: var(--text-mid);
  max-width: 560px;
  margin: 0 auto 2rem;
  line-height: 2;
}

.hero-badges {
  display: flex; flex-wrap: wrap; gap: 8px;
  justify-content: center; margin-bottom: 2.5rem;
}

.badge {
  background: var(--bg3);
  border: 2px solid var(--card-border);
  box-shadow: 2px 2px 0 #000;
  color: var(--text-mid);
  padding: 5px 12px;
  font-size: 1.44rem;
  font-family: 'Press Start 2P', monospace;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px;
  font-size: 1.7rem; font-weight: 400;
  cursor: pointer; text-decoration: none;
  transition: all 0.1s; border: 3px solid #000;
  font-family: 'Press Start 2P', monospace;
  letter-spacing: 0.02em;
  box-shadow: 4px 4px 0 #000;
  position: relative;
  image-rendering: pixelated;
}

.btn:active {
  box-shadow: 1px 1px 0 #000;
  transform: translate(3px, 3px);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: #000;
}
.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 5px 5px 0 #000;
  transform: translate(-1px, -1px);
}

.btn-warm {
  background: var(--gold-light);
  color: #3a2800;
  border-color: #000;
}
.btn-warm:hover {
  background: #fff8d0;
  box-shadow: 5px 5px 0 #000;
  transform: translate(-1px, -1px);
}

.btn-outline {
  background: transparent;
  border-color: var(--primary);
  color: var(--primary);
}
.btn-outline:hover {
  background: rgba(200,118,58,.15);
  box-shadow: 5px 5px 0 #000;
  transform: translate(-1px, -1px);
}

.btn-accent {
  background: var(--accent);
  color: #fff;
  border-color: #000;
}
.btn-accent:hover {
  background: #589858;
  box-shadow: 5px 5px 0 #000;
  transform: translate(-1px, -1px);
}

.btn-ghost {
  background: var(--card-bg);
  color: var(--text);
  border-color: var(--card-border);
}
.btn-ghost:hover {
  background: var(--bg3);
  border-color: var(--primary);
  box-shadow: 5px 5px 0 #000;
  transform: translate(-1px, -1px);
}

/* ===== STATS BAR ===== */
.stats-bar {
  background: var(--bg2);
  border-bottom: 4px solid var(--card-border);
  padding: 1.5rem 2.5rem;
  display: flex; justify-content: center; gap: 3rem;
  flex-wrap: wrap;
}

.stat-item { text-align: center; }
.stat-item .num {
  font-family: 'Press Start 2P', monospace;
  font-size: 4rem; font-weight: 400; color: var(--gold);
  line-height: 1;
  text-shadow: 2px 2px 0 #000;
}
.stat-item .label { font-size: 1.8rem; color: var(--text-light); margin-top: 6px; }

/* ===== SECTION ===== */
.section { padding: 4rem 2.5rem; max-width: 1200px; margin: 0 auto; }

.section-title { text-align: center; margin-bottom: 3rem; }

.section-title .tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--bg3);
  border: 3px solid var(--primary);
  box-shadow: 3px 3px 0 #000;
  color: var(--primary);
  padding: 5px 16px;
  font-size: 1.44rem; font-weight: 400;
  letter-spacing: 0.05em; margin-bottom: 1rem;
  font-family: 'Press Start 2P', monospace;
}

.section-title h2 {
  font-family: 'Press Start 2P', monospace;
  font-size: 1.6rem; font-weight: 400;
  color: var(--text); margin-bottom: 0.8rem;
  line-height: 2;
  text-shadow: 2px 2px 0 rgba(0,0,0,.6);
}

.section-title p { color: var(--text-light); font-size: 1.8rem; }

/* ===== GRADE TABS ===== */
.grade-tabs {
  display: flex; gap: 6px; justify-content: center;
  flex-wrap: wrap; margin-bottom: 2rem;
}

.grade-tab {
  padding: 8px 18px;
  border: 3px solid var(--card-border);
  box-shadow: 3px 3px 0 #000;
  background: var(--card-bg);
  cursor: pointer; font-size: 1.6rem; font-weight: 400;
  color: var(--text-light); transition: all 0.1s;
  font-family: 'Press Start 2P', monospace;
}

.grade-tab:hover {
  border-color: var(--primary); color: var(--primary);
  background: rgba(200,118,58,.1);
  box-shadow: 4px 4px 0 #000;
  transform: translate(-1px,-1px);
}
.grade-tab.active {
  background: var(--primary); color: #fff;
  border-color: #000;
  box-shadow: 4px 4px 0 #000;
}
.grade-tab:active { transform: translate(2px,2px); box-shadow: 1px 1px 0 #000; }

/* ===== CARDS ===== */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px,1fr)); gap: 1.2rem; }

.card {
  background: var(--card-bg);
  border: 3px solid var(--card-border);
  box-shadow: 5px 5px 0 #000;
  overflow: hidden;
  transition: transform 0.1s, box-shadow 0.1s;
  image-rendering: pixelated;
}

.card:hover {
  transform: translate(-3px,-3px);
  box-shadow: 8px 8px 0 #000;
  border-color: var(--primary);
}
.card:active {
  transform: translate(2px,2px);
  box-shadow: 2px 2px 0 #000;
}

.card-thumb {
  height: 140px;
  display: flex; align-items: center; justify-content: center;
  font-size: 2.33rem; position: relative; overflow: hidden;
  border-bottom: 3px solid var(--card-border);
}

/* Pixel scanline on thumbs */
.card-thumb::after {
  content: '';
  position: absolute; inset: 0;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 3px,
    rgba(0,0,0,.12) 3px, rgba(0,0,0,.12) 4px
  );
  pointer-events: none;
}

.card-body { padding: 1.1rem 1.2rem; }
.card-body h3 {
  font-family: 'Press Start 2P', monospace;
  font-size: 1.6rem; font-weight: 400;
  margin-bottom: 0.5rem; color: var(--text);
  line-height: 1.8;
}
.card-body p { font-size: 1.6rem; color: var(--text-light); line-height: 1.7; }

.card-meta { display: flex; gap: 6px; margin-top: 0.9rem; flex-wrap: wrap; }

/* ===== CHIPS ===== */
.chip {
  padding: 3px 10px;
  font-size: 1.6rem; font-weight: 700;
  font-family: 'Press Start 2P', monospace;
  border: 2px solid #000;
  box-shadow: 2px 2px 0 #000;
}
.chip-brown  { background: var(--primary);  color: #fff; }
.chip-green  { background: var(--accent);   color: #fff; }
.chip-rose   { background: var(--rose);     color: #fff; }
.chip-gold   { background: var(--gold);     color: #fff; }
.chip-lav    { background: var(--lavender); color: #fff; }
/* legacy */
.chip-blue   { background: var(--sky);      color: #fff; }
.chip-orange { background: var(--secondary);color: #fff; }
.chip-purple { background: var(--lavender); color: #fff; }

/* ===== VIDEO CARD ===== */
.video-card .play-btn {
  position: absolute; z-index: 2;
  width: 48px; height: 48px;
  background: var(--gold);
  border: 3px solid #000;
  box-shadow: 3px 3px 0 #000;
  display: flex; align-items: center; justify-content: center;
  font-size: 2.2rem; cursor: pointer;
  transition: transform 0.1s, box-shadow 0.1s;
  color: #fff;
}
.video-card:hover .play-btn {
  transform: translate(-2px,-2px);
  box-shadow: 5px 5px 0 #000;
}

/* ===== FEATURE BOXES ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px,1fr));
  gap: 1rem;
}

.feature-box {
  background: var(--card-bg);
  border: 3px solid var(--card-border);
  box-shadow: 5px 5px 0 #000;
  padding: 1.8rem 1.2rem;
  text-align: center;
  cursor: pointer; text-decoration: none; color: var(--text);
  transition: all 0.1s;
  display: block;
  position: relative;
  overflow: hidden;
}

.feature-box::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: var(--primary);
}

.feature-box:hover {
  transform: translate(-3px,-3px);
  box-shadow: 8px 8px 0 #000;
  border-color: var(--primary);
}
.feature-box:active {
  transform: translate(2px,2px);
  box-shadow: 2px 2px 0 #000;
}

.feature-box .icon { font-size: 5rem; margin-bottom: 0.8rem; display: block; }
.feature-box h3 {
  font-family: 'Press Start 2P', monospace;
  font-size: 1.44rem; font-weight: 400;
  margin-bottom: 0.4rem;
  line-height: 1.8;
}
.feature-box p { font-size: 1.56rem; color: var(--text-light); }

/* ===== QUIZ ===== */
.quiz-container {
  max-width: 700px; margin: 0 auto;
  background: var(--card-bg);
  border: 4px solid var(--card-border);
  box-shadow: 6px 6px 0 #000;
  padding: 2.5rem;
}

.quiz-progress {
  background: var(--bg2);
  border: 2px solid var(--card-border);
  height: 16px; margin-bottom: 2rem; overflow: hidden;
}
.quiz-progress-fill {
  background: var(--primary);
  height: 100%; transition: width 0.4s;
  /* Pixel stripe */
  background-image: repeating-linear-gradient(
    45deg, rgba(255,255,255,.1) 0px, rgba(255,255,255,.1) 4px,
    transparent 4px, transparent 8px
  );
}

.quiz-question {
  font-family: 'Press Start 2P', monospace;
  font-size: 1.8rem; font-weight: 400;
  margin-bottom: 1.5rem; color: var(--text); line-height: 2;
}

.quiz-options { display: flex; flex-direction: column; gap: 0.75rem; }

.quiz-option {
  padding: 12px 16px;
  border: 3px solid var(--card-border);
  box-shadow: 3px 3px 0 #000;
  cursor: pointer;
  transition: all 0.1s; font-size: 1.76rem;
  background: var(--bg2); color: var(--text);
}
.quiz-option:hover {
  border-color: var(--primary);
  background: rgba(200,118,58,.1);
  transform: translate(-2px,-2px);
  box-shadow: 5px 5px 0 #000;
}
.quiz-option.correct {
  border-color: #2e7d32;
  background: #c8f0ca;
  color: #1a4a1e;
  font-weight: 700;
  box-shadow: 3px 3px 0 #2e7d32;
}
.quiz-option.wrong {
  border-color: #b71c1c;
  background: #ffd6d8;
  color: #6b0a0a;
  box-shadow: 3px 3px 0 #b71c1c;
}

.quiz-score { text-align: center; padding: 2rem; }
.quiz-score .score-num {
  font-family: 'Press Start 2P', monospace;
  font-size: 6rem; font-weight: 400; color: var(--gold);
  text-shadow: 4px 4px 0 #000;
}

/* ===== PAGE HEADER ===== */
.page-header {
  background: var(--bg2);
  color: var(--text);
  padding: 3rem 2.5rem;
  text-align: center;
  position: relative; overflow: hidden;
  border-bottom: 4px solid var(--primary);
}

.page-header::before {
  content: '▓▒░ ░▒▓';
  position: absolute; bottom: 0; left: 0; right: 0;
  font-size: 1.2rem; color: rgba(200,118,58,.1);
  letter-spacing: 1.5rem; text-align: center;
  pointer-events: none;
}

.page-header h1 {
  font-family: 'Press Start 2P', monospace;
  font-size: 2.6rem; font-weight: 400;
  line-height: 2; position: relative;
  text-shadow: 3px 3px 0 #000;
}
.page-header p { opacity: 0.7; margin-top: 0.6rem; position: relative; font-size: 2rem; }

/* ===== ABOUT SECTION ===== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
@media(max-width:700px) { .about-grid { grid-template-columns: 1fr; gap:2rem; } }

.highlight-list { list-style: none; }
.highlight-list li {
  padding: 12px 0; border-bottom: 2px solid var(--card-border);
  display: flex; gap: 12px; align-items: flex-start;
}
.highlight-list li:last-child { border-bottom: none; }
.highlight-list .bullet {
  width: 28px; height: 28px;
  background: var(--primary);
  border: 2px solid #000;
  box-shadow: 2px 2px 0 #000;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; flex-shrink: 0; margin-top: 2px;
}

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(10,10,30,0.8);
  z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity 0.2s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }

.modal {
  background: var(--card-bg);
  border: 4px solid var(--primary);
  box-shadow: 8px 8px 0 #000;
  padding: 2.5rem;
  max-width: 560px; width: 92%;
  max-height: 90vh; overflow-y: auto;
  transform: scale(0.9) translateY(10px);
  transition: transform 0.2s;
}
.modal-overlay.open .modal { transform: scale(1) translateY(0); }

.modal-header {
  display: flex; justify-content: space-between;
  align-items: flex-start; margin-bottom: 1.5rem;
}
.modal-close {
  background: var(--rose);
  border: 3px solid #000;
  box-shadow: 2px 2px 0 #000;
  width: 32px; height: 32px;
  cursor: pointer; font-size: 1.8rem;
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.1s; flex-shrink: 0;
}
.modal-close:hover {
  transform: translate(-1px,-1px);
  box-shadow: 3px 3px 0 #000;
}

/* ===== PLAN TABLE ===== */
.plan-table {
  width: 100%; border-collapse: collapse; font-size: 1.7rem;
  background: var(--card-bg);
  border: 3px solid var(--card-border);
  box-shadow: 5px 5px 0 #000;
}
.plan-table th {
  background: var(--primary); color: #fff;
  padding: 11px 14px; text-align: left; font-weight: 700;
  border: 2px solid rgba(0,0,0,.3);
}
.plan-table td {
  padding: 10px 14px;
  border-bottom: 2px solid var(--card-border);
  vertical-align: top;
  border: 1px solid var(--card-border);
}
.plan-table tr:hover td { background: rgba(200,118,58,.08); }

/* ===== MATERIAL CARD ===== */
.material-card {
  background: var(--card-bg);
  border: 3px solid var(--card-border);
  box-shadow: 4px 4px 0 #000;
  padding: 1.2rem; display: flex; gap: 1rem; align-items: flex-start;
  transition: all 0.1s; cursor: pointer;
}
.material-card:hover {
  transform: translate(-2px,-2px);
  box-shadow: 6px 6px 0 #000;
  border-color: var(--primary);
}
.material-icon {
  width: 50px; height: 50px;
  border: 3px solid #000;
  box-shadow: 2px 2px 0 #000;
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem; flex-shrink: 0;
}
.material-info h3 { font-size: 1.76rem; font-weight: 700; margin-bottom: 0.3rem; }
.material-info p  { font-size: 1.6rem; color: var(--text-light); }

/* ===== NEWS ===== */
.news-card {
  background: var(--card-bg);
  border: 3px solid var(--card-border);
  box-shadow: 4px 4px 0 #000;
  overflow: hidden; cursor: pointer; transition: all 0.1s;
}
.news-card:hover {
  transform: translate(-2px,-2px);
  box-shadow: 6px 6px 0 #000;
  border-color: var(--primary);
}
.news-thumb {
  display: flex; align-items: center; justify-content: center; font-size: 5rem;
}

/* ===== GAME AREA ===== */
#game-area {
  background: var(--card-bg);
  border: 4px solid var(--card-border);
  box-shadow: 6px 6px 0 #000;
  padding: 2rem; min-height: 380px; text-align: center;
}

.drag-item {
  display: inline-block; padding: 8px 16px;
  background: var(--bg3); color: var(--text);
  border: 3px solid var(--primary);
  box-shadow: 3px 3px 0 #000;
  cursor: grab; font-weight: 700;
  font-size: 1.7rem;
  transition: all 0.1s; user-select: none;
}
.drag-item:hover {
  border-color: var(--gold);
  transform: translate(-1px,-1px);
  box-shadow: 4px 4px 0 #000;
}
.drag-item.dragging { opacity: 0.45; }

.drop-zone {
  min-height: 50px;
  border: 3px dashed var(--card-border);
  display: flex; align-items: center;
  justify-content: center; color: var(--text-light);
  transition: all 0.1s; padding: 8px;
}
.drop-zone.over   { border-color: var(--primary); background: rgba(200,118,58,.1); }
.drop-zone.filled { border-style: solid; border-color: var(--accent); background: rgba(106,171,110,.1); }

/* ===== FOOTER ===== */
.footer {
  background: #0a0a18; color: var(--text-light);
  padding: 3rem 2.5rem 1.5rem; margin-top: 4rem;
  border-top: 4px solid var(--primary);
  box-shadow: 0 -4px 0 #000;
}
.footer-grid {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px,1fr));
  gap: 2rem; margin-bottom: 2.5rem;
}
.footer h4 {
  color: var(--gold);
  font-family: 'Press Start 2P', monospace;
  font-size: 1.6rem; margin-bottom: 1rem;
  text-shadow: 2px 2px 0 #000;
}
.footer ul  { list-style: none; }
.footer ul li { margin-bottom: 0.5rem; }
.footer ul a  { color: var(--text-light); text-decoration: none; font-size: 1.7rem; transition: color 0.15s; }
.footer ul a:hover { color: var(--gold); }
.footer-copy {
  text-align: center; font-size: 1.5rem;
  border-top: 2px solid #1e2030; padding-top: 1.5rem;
  max-width: 1200px; margin: 0 auto; color: var(--text-light);
}

/* ===== COZY PIXEL DECORATIONS ===== */
.cozy-section {
  background: var(--bg2);
  border-top: 3px solid var(--card-border);
  border-bottom: 3px solid var(--card-border);
  position: relative;
}
.cozy-section::before {
  content: '■ □ ■ □ ■ □ ■ □ ■ □ ■ □ ■ □ ■ □ ■ □ ■ □';
  position: absolute; top: -12px; left: 0; right: 0;
  font-size: 8px; color: var(--primary); letter-spacing: 4px;
  text-align: center; pointer-events: none;
}
.cozy-section::after {
  content: '□ ■ □ ■ □ ■ □ ■ □ ■ □ ■ □ ■ □ ■ □ ■ □ ■';
  position: absolute; bottom: -12px; left: 0; right: 0;
  font-size: 8px; color: var(--accent); letter-spacing: 4px;
  text-align: center; pointer-events: none;
}

.cozy-card-accent {
  position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: var(--primary);
}

/* ===== PIXEL DIVIDER ===== */
.pixel-divider {
  border: none;
  height: 4px;
  background: repeating-linear-gradient(
    90deg,
    var(--primary) 0px, var(--primary) 8px,
    transparent 8px, transparent 16px,
    var(--accent) 16px, var(--accent) 24px,
    transparent 24px, transparent 32px
  );
  margin: 2rem 0;
}

/* ===== PLAN STYLES ===== */
.plan-nav { display:flex;gap:6px;flex-wrap:wrap;margin-bottom:2rem;justify-content:center; }
.plan-nav-btn {
  padding:8px 18px;
  border: 3px solid var(--card-border);
  box-shadow: 3px 3px 0 #000;
  background: var(--card-bg);
  cursor:pointer;font-weight:400;font-size:1.6rem;
  transition:all 0.1s;color:var(--text-mid);
  font-family:'Press Start 2P',monospace;
}
.plan-nav-btn:hover {
  border-color:var(--primary);color:var(--primary);
  transform:translate(-1px,-1px);box-shadow:4px 4px 0 #000;
}
.plan-nav-btn.active {
  background:var(--primary);color:#fff;border-color:#000;
  box-shadow:4px 4px 0 #000;
}
.plan-grade { display:none; }
.plan-grade.active { display:block; }

.unit-card {
  background: var(--card-bg);
  border: 3px solid var(--card-border);
  box-shadow: 4px 4px 0 #000;
  margin-bottom: 1rem; overflow:hidden;
}
.unit-header {
  padding:1rem 1.3rem;display:flex;align-items:center;gap:1rem;
  cursor:pointer;user-select:none;transition:background 0.1s;
  border-bottom: 2px solid transparent;
}
.unit-header:hover { background:rgba(200,118,58,.08); border-bottom-color: var(--primary); }
.unit-icon { font-size:2.4rem;flex-shrink:0; }
.unit-title { flex:1; }
.unit-title h3 { font-size:1.7rem;font-weight:800; }
.unit-title p  { font-size:1.56rem;color:var(--text-light);margin-top:2px; }
.unit-arrow { font-size:1.8rem;color:var(--text-light);transition:transform 0.2s; }
.unit-card.open .unit-arrow { transform:rotate(180deg); }
.unit-body { display:none;padding:0 1.3rem 1.3rem; }
.unit-card.open .unit-body { display:block; }
.hour-table { width:100%;border-collapse:collapse;font-size:1.68rem; }
.hour-table th {
  background:var(--primary);color:#fff;padding:9px 12px;
  text-align:left;font-weight:700;
  border: 2px solid rgba(0,0,0,.3);
}
.hour-table td {
  padding:9px 12px;
  border: 1px solid var(--card-border);
  vertical-align:top;
}
.hour-table tr:hover td { background:rgba(200,118,58,.06); }
.hour-num { width:40px;font-weight:800;color:var(--primary); }
.activity-list { margin:0;padding-left:1.2rem; }
.activity-list li { margin-bottom:2px; }
.obj-tag {
  display:inline-block;
  background:var(--bg3);color:var(--primary);
  border: 2px solid var(--primary);
  box-shadow: 1px 1px 0 #000;
  padding:2px 8px;font-size:1.44rem;font-weight:600;margin-bottom:6px;
}
.indicator-box {
  background:var(--bg3);
  border-left:4px solid var(--primary);
  padding:0.9rem 1rem;margin-bottom:1rem;font-size:1.7rem;
}
.indicator-box strong { display:block;margin-bottom:0.3rem;color:var(--primary); }
.grade-overview {
  display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));
  gap:0.8rem;margin-bottom:2rem;
}
.overview-card {
  background:var(--card-bg);
  border:3px solid var(--card-border);
  box-shadow:3px 3px 0 #000;
  padding:1rem;text-align:center;
}
.overview-card .num {
  font-size:2.4rem;font-weight:800;color:var(--gold);
  font-family:'Press Start 2P',monospace;
  text-shadow:2px 2px 0 #000;
}
.overview-card .lbl { font-size:1.5rem;color:var(--text-light);margin-top:4px; }
.dl-plan-btn {
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 16px;
  background:var(--primary);color:#fff;
  border:3px solid #000;box-shadow:3px 3px 0 #000;
  font-size:1.64rem;font-weight:400;cursor:pointer;margin-top:0.8rem;
  transition:all 0.1s;font-family:'Press Start 2P',monospace;
}
.dl-plan-btn:hover {
  background:var(--primary-dark);
  transform:translate(-1px,-1px);box-shadow:4px 4px 0 #000;
}

/* ===== CURSOR BLINK ===== */
@keyframes blink {
  0%,100% { opacity:1; } 50% { opacity:0; }
}
.cursor-blink::after {
  content: '▮';
  animation: blink 1s step-end infinite;
  color: var(--primary);
  font-family: monospace;
}

/* ===== PIXEL ANIMATIONS ===== */
@keyframes float-pixel {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}
.float-pixel { animation: float-pixel 2s ease-in-out infinite; }

/* ===== RESPONSIVE ===== */
@media(max-width:768px) {
  .hero h1 { font-size: 1.8rem; }
  .navbar { padding: 0 1rem; }
  .nav-links {
    display: none; flex-direction: column;
    position: absolute; top: 56px; left: 0; right: 0;
    background: var(--bg2); padding: 0.8rem 1rem 1rem;
    border-top: 3px solid var(--primary);
    border-bottom: 3px solid var(--primary);
    box-shadow: 0 4px 0 #000;
  }
  .nav-links.open { display: flex; }
  .hamburger { display: block; }
  .stats-bar { gap: 1.5rem; }
  .section { padding: 3rem 1rem; }
}

/* ===== INPUT / SELECT ===== */
input, select, textarea {
  background: var(--bg2);
  color: var(--text);
  border: 3px solid var(--card-border);
  box-shadow: 3px 3px 0 #000;
  padding: 8px 12px;
  font-family: 'Sarabun', sans-serif;
  font-size: 1.8rem;
  outline: none;
  transition: border-color 0.1s, box-shadow 0.1s;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 4px 4px 0 #000;
}

/* ===== PIXEL STAR DECORATION ===== */
.pixel-stars {
  position: absolute; pointer-events: none;
  top: 0; left: 0; right: 0; bottom: 0; overflow: hidden;
}
.pixel-stars::before {
  content: '⭐';
  position: absolute; font-size: 8px; opacity: 0.2;
  top: 20%; left: 10%;
}
.pixel-stars::after {
  content: '⭐';
  position: absolute; font-size: 6px; opacity: 0.15;
  top: 60%; right: 15%;
}