:root {
  font-family: 'Mukta', sans-serif;
  color: #c3dfe0;
  background: #000;
  font-synthesis: none;
  --crimson: #931621;
  --slate: #28464b;
  --teal: #326771;
  --lilac: #c1a5a9;
  --light: #c3dfe0;
  --black: #000;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: #000; }
button, input, textarea { font: inherit; }
a { color: inherit; }
.site-shell {
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 72% 24%, rgba(193,165,169,.25) 0%, rgba(193,165,169,.11) 25%, transparent 48%),
    linear-gradient(135deg, #931621 0%, #931621 20%, #326771 20%, #326771 60%, #000 60%, #000 100%);
  background-attachment: fixed;
}
.aurora-background {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  background:
    linear-gradient(110deg, rgba(0,0,0,.04) 0%, rgba(0,0,0,.18) 50%, rgba(0,0,0,.50) 100%),
    linear-gradient(135deg, transparent 0%, transparent 50%, rgba(0,0,0,.50) 50%, rgba(0,0,0,.50) 100%),
    radial-gradient(circle at 72% 24%, rgba(193,165,169,.25) 0%, rgba(193,165,169,.08) 24%, transparent 46%),
    linear-gradient(135deg, #931621 0%, #931621 20%, #326771 20%, #326771 60%, #000 60%, #000 100%);
  background-attachment: fixed;
}
.aurora { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .48; transform: translate3d(0,0,0); }
.aurora-purple { width: 55vw; height: 55vw; top: -18vw; left: 12vw; background: radial-gradient(circle, rgba(147,22,33,.72) 0%, rgba(147,22,33,.35) 32%, rgba(193,165,169,.16) 58%, transparent 75%); animation: drift-purple 14s ease-in-out infinite alternate; }
.aurora-navy { width: 42vw; height: 42vw; right: -10vw; top: 18vh; background: radial-gradient(circle, rgba(50,103,113,.55) 0%, rgba(40,70,75,.38) 35%, transparent 72%); animation: drift-navy 18s ease-in-out infinite alternate; }
.aurora-background::after { content: ''; position: absolute; inset: 0; background: linear-gradient(rgba(0,0,0,.56), rgba(0,0,0,.74)); }
@keyframes drift-purple { from { transform: translate(-4vw,-2vh) scale(1); } to { transform: translate(9vw,7vh) scale(1.08); } }
@keyframes drift-navy { from { transform: translate(2vw,-1vh) scale(1); } to { transform: translate(-7vw,8vh) scale(1.12); } }
.site-content { position: relative; z-index: 1; }
.container { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.hero { min-height: 92vh; position: relative; display: flex; flex-direction: column; }
.navbar { width: min(1120px, calc(100% - 40px)); margin: 0 auto; min-height: 76px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid rgba(195,223,224,.12); backdrop-filter: blur(8px); }
.brand { text-decoration: none; font: 800 1.55rem/1 'SN Pro', sans-serif; letter-spacing: -.04em; }
.brand span { color: var(--crimson); }
.nav-links { display: flex; gap: 22px; flex-wrap: wrap; justify-content: flex-end; align-items: center; }
.nav-links a, .creations-button { text-decoration: none; color: var(--lilac); font: 500 .92rem 'Prompt', sans-serif; transition: .2s ease; }
.nav-links a:hover, .creations-button:hover { color: var(--light); }
.creations-menu { position: relative; }
.creations-button { border: 0; background: transparent; cursor: pointer; padding: 0; display: inline-flex; align-items: center; gap: 5px; }
.creations-dropdown { position: absolute; top: calc(100% + 14px); right: 0; min-width: 175px; padding: 9px; border: 1px solid rgba(195,223,224,.14); border-radius: 14px; background: rgba(12,18,20,.94); box-shadow: 0 18px 50px rgba(0,0,0,.45); backdrop-filter: blur(14px); opacity: 0; visibility: hidden; transform: translateY(-6px); transition: .2s ease; }
.creations-menu.open .creations-dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.creations-dropdown a { display: block; padding: 10px 12px; border-radius: 9px; }
.creations-dropdown a:hover { background: rgba(195,223,224,.07); }
.hero-inner { flex: 1; display: flex; flex-direction: column; justify-content: center; padding: 90px 0 120px; }
.eyebrow, .section-number { margin: 0 0 18px; color: var(--lilac); font: 700 .76rem 'Prompt', sans-serif; letter-spacing: .18em; }
.signature { margin: 0 0 2px; color: var(--light); font: 400 clamp(2rem, 5vw, 4rem)/1 'Great Vibes', cursive; }
.dot, .mini-dot { display: inline-block; width: 8px; height: 8px; background: var(--crimson); border-radius: 50%; vertical-align: middle; }
h1, h2, h3 { font-family: 'Prompt', sans-serif; margin: 0; }
h1 { max-width: 900px; font: 800 clamp(4rem, 13vw, 9rem)/.82 'SN Pro', sans-serif; letter-spacing: -.07em; color: var(--light); }
h1 span { color: var(--crimson); }
h2 { color: var(--light); font-size: clamp(2.7rem, 6vw, 5rem); letter-spacing: -.04em; }
h3 { color: var(--light); font-size: 1.35rem; }
p { margin: 0; color: var(--lilac); font-size: 1.05rem; }
.hero-copy { max-width: 560px; margin-top: 28px; font-size: 1.2rem; }
.primary-btn { display: inline-flex; align-items: center; justify-content: center; gap: 12px; width: fit-content; margin-top: 30px; padding: 12px 18px; border: 1px solid rgba(195,223,224,.18); border-radius: 999px; background: var(--crimson); color: var(--light); text-decoration: none; font: 700 .9rem 'Prompt', sans-serif; transition: transform .2s, background .2s; cursor: pointer; }
.primary-btn:hover { transform: translateY(-2px); background: #b11b29; }
.section { padding: 110px 0; }
.dark-section { background: rgba(0,0,0,.45); border-top: 1px solid rgba(195,223,224,.08); border-bottom: 1px solid rgba(195,223,224,.08); }
.section-heading { margin-bottom: 38px; }
.section-subtitle { max-width: 680px; margin-top: 15px; }
.two-col, .feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 22px; }
.feature-grid { grid-template-columns: repeat(3, minmax(0,1fr)); margin-bottom: 32px; }
.clean-card { width: 100%; height: 100%; border: 1px solid rgba(195,223,224,.14); border-radius: 22px; background: rgba(18,26,28,.68); box-shadow: 0 18px 60px rgba(0,0,0,.34); backdrop-filter: blur(12px); }
.clean-card:hover { border-color: rgba(193,165,169,.3); }
.card-content, .feature-card, .creation-card, .contact-form { padding: 30px; }
.card-content p + p { margin-top: 14px; }
.card-label { color: var(--lilac); font: 600 .75rem 'Prompt', sans-serif; letter-spacing: .14em; margin-bottom: 20px; }
.interest-list { list-style: none; padding: 0; margin: 0; }
.interest-list li { display: flex; gap: 14px; align-items: center; padding: 15px 0; border-bottom: 1px solid rgba(195,223,224,.08); font: 600 1rem 'Prompt', sans-serif; color: var(--light); }
.interest-list li:last-child { border-bottom: 0; }
.interest-list span, .feature-number { color: var(--crimson); font: 700 .75rem 'Prompt', sans-serif; }
.feature-card { min-height: 180px; }
.feature-number { display: block; margin-bottom: 44px; }
.feature-card p { margin-top: 8px; }

.creations-section { background: rgba(10,16,18,.28); }
.creation-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 22px; }
.creation-card { min-height: 520px; }
.creation-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; margin-bottom: 22px; }
.creation-header .card-label { margin-bottom: 6px; }
.creation-badge { padding: 6px 9px; border: 1px solid rgba(195,223,224,.14); border-radius: 999px; color: var(--lilac); font: 600 .65rem 'Prompt', sans-serif; white-space: nowrap; }
.game-status { text-align: center; margin-bottom: 18px; color: var(--light); font: 600 .9rem 'Prompt', sans-serif; }
.tic-board { width: min(360px, 100%); margin: 0 auto 20px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; }
.tic-cell { aspect-ratio: 1; border: 1px solid rgba(195,223,224,.15); border-radius: 13px; background: rgba(0,0,0,.45); color: var(--light); font: 800 2.2rem 'Prompt', sans-serif; cursor: pointer; transition: .15s ease; }
.tic-cell:hover:not(:disabled) { border-color: var(--teal); background: rgba(50,103,113,.12); transform: translateY(-2px); }
.tic-cell.x { color: var(--crimson); }
.tic-cell.o { color: var(--teal); }
.tic-cell:disabled { cursor: default; }
.secondary-btn { display: block; margin: 0 auto; padding: 10px 16px; border: 1px solid rgba(195,223,224,.16); border-radius: 999px; background: transparent; color: var(--light); cursor: pointer; font: 600 .82rem 'Prompt', sans-serif; }
.secondary-btn:hover { background: rgba(195,223,224,.06); }

.calculator { width: min(360px, 100%); margin: 0 auto; }
.calc-display { width: 100%; height: 72px; margin-bottom: 10px; padding: 12px 16px; border: 1px solid rgba(195,223,224,.14); border-radius: 14px; outline: none; background: rgba(0,0,0,.58); color: var(--light); text-align: right; font: 600 1.9rem 'Prompt', sans-serif; }
.calc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.calc-btn { min-height: 58px; border: 1px solid rgba(195,223,224,.11); border-radius: 12px; background: rgba(0,0,0,.46); color: var(--light); cursor: pointer; font: 600 1.05rem 'Prompt', sans-serif; transition: .15s ease; }
.calc-btn:hover { background: rgba(195,223,224,.07); transform: translateY(-1px); }
.calc-btn.operator { color: var(--lilac); }
.calc-btn.clear { color: var(--crimson); }
.calc-btn.equals { grid-row: span 2; background: var(--crimson); }
.calc-btn.zero { grid-column: span 3; }

.tom-gallery { padding: 18px; }
.tom-feature { position: relative; overflow: hidden; border-radius: 18px; min-height: 560px; background: #101618; }
.tom-feature img { width: 100%; height: 560px; object-fit: cover; display: block; filter: saturate(.82) contrast(1.04); }
.tom-overlay { position: absolute; left: 0; right: 0; bottom: 0; padding: 28px; background: linear-gradient(transparent, rgba(0,0,0,.88)); display: flex; flex-direction: column; gap: 4px; }
.tom-overlay span { color: var(--lilac); font: 600 .75rem 'Prompt', sans-serif; letter-spacing: .12em; text-transform: uppercase; }
.tom-overlay strong { color: var(--light); font: 700 clamp(1.8rem, 4vw, 3rem) 'Prompt', sans-serif; }
.tom-thumbnails { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 12px; margin-top: 12px; }
.tom-thumbnails img { width: 100%; height: 150px; object-fit: cover; border-radius: 14px; display: block; opacity: .82; transition: transform .2s ease, opacity .2s ease; }
.tom-thumbnails img:hover { transform: translateY(-3px); opacity: 1; }

.contact-layout { display: grid; grid-template-columns: 1fr .95fr; gap: 40px; align-items: start; }
.contact-form { display: flex; flex-direction: column; gap: 9px; }
.contact-form label { margin-top: 8px; color: var(--light); font: 600 .84rem 'Prompt', sans-serif; }
.contact-form input, .contact-form textarea { width: 100%; resize: vertical; border: 1px solid rgba(195,223,224,.12); border-radius: 12px; padding: 13px 14px; outline: 0; color: var(--light); background: rgba(0,0,0,.62); font: 400 1rem 'Mukta', sans-serif; }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(50,103,113,.16); }
.submit-btn { width: 100%; border: 0; cursor: pointer; margin-top: 10px; }
.sent-message { color: var(--light); margin-top: 5px; font-size: .9rem; }
.footer { padding: 28px 0; background: rgba(0,0,0,.78); }
.footer-inner { display: flex; justify-content: space-between; gap: 20px; }
.footer a { color: var(--lilac); text-decoration: none; }

/* Last-day teacher tribute */
.teacher-nav-link { color: var(--light) !important; }
.teacher-nav-link:hover { color: var(--lilac) !important; }
.teacher-thanks-section { position: relative; padding-top: 120px; padding-bottom: 120px; }
.teacher-thanks-card { position: relative; overflow: hidden; padding: clamp(30px, 6vw, 64px); text-align: center; background: linear-gradient(145deg, rgba(18,26,28,.78), rgba(7,12,14,.70)); }
.teacher-thanks-card::before, .teacher-thanks-card::after { content: ''; position: absolute; width: 150px; height: 150px; border-radius: 50%; filter: blur(32px); pointer-events: none; opacity: .24; }
.teacher-thanks-card::before { top: -60px; left: -50px; background: var(--crimson); }
.teacher-thanks-card::after { right: -50px; bottom: -70px; background: var(--teal); }
.thank-topline { position: relative; z-index: 1; display: flex; justify-content: center; align-items: center; gap: 18px; color: var(--lilac); font: 700 .72rem 'Prompt', sans-serif; letter-spacing: .16em; }
.thank-code { color: var(--teal); font: 700 .92rem 'Prompt', sans-serif; }
.teacher-thanks-card .section-number { position: relative; z-index: 1; margin-top: 30px; }
.teacher-thanks-card h2 { position: relative; z-index: 1; max-width: 900px; margin: 0 auto; }
.teacher-thanks-card h2 span { color: var(--crimson); }
.thank-divider { position: relative; z-index: 1; display: flex; align-items: center; justify-content: center; gap: 14px; max-width: 480px; margin: 28px auto 30px; }
.thank-divider span { flex: 1; height: 1px; background: linear-gradient(90deg, transparent, rgba(195,223,224,.28), transparent); }
.thank-divider b { color: var(--lilac); font-size: 1.15rem; }
.teacher-note { position: relative; z-index: 1; max-width: 820px; margin: 0 auto; }
.teacher-note p { font-size: clamp(1rem, 2vw, 1.14rem); line-height: 1.85; color: var(--light); }
.teacher-note p + p { margin-top: 20px; }
.certificate-section {
  background: rgba(10,16,18,.28);
}
.certificate-panel {
  position: relative;
  z-index: 1;
  width: min(100%, 1100px);
  margin: 0 auto;
  padding: 18px;
  border: 1px solid rgba(195,223,224,.18);
  border-radius: 24px;
  background: linear-gradient(145deg, rgba(255,255,255,.03), rgba(12,18,20,.34));
  box-shadow: 0 26px 70px rgba(0,0,0,.32), inset 0 0 0 1px rgba(195,223,224,.08);
}
.certificate-frame {
  padding: 16px;
  border: 2px solid rgba(195,223,224,.18);
  border-radius: 18px;
  background: rgba(0,0,0,.12);
  box-shadow: inset 0 0 0 1px rgba(195,223,224,.08), 0 18px 35px rgba(0,0,0,.18);
}
.certificate-panel img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 12px 28px rgba(0,0,0,.18);
}
.thank-signoff { position: relative; z-index: 1; display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 16px 24px; margin-top: 34px; color: var(--lilac); font: 600 .82rem 'Prompt', sans-serif; letter-spacing: .08em; text-transform: uppercase; }
.thank-hearts { color: var(--crimson); letter-spacing: .32em; }
.thank-deco { position: absolute; z-index: 1; pointer-events: none; }
.thank-star { color: var(--lilac); text-shadow: 0 0 18px rgba(193,165,169,.44); }
.thank-star-one { top: 26px; left: 30px; font-size: 1.8rem; transform: rotate(-12deg); }
.thank-star-two { right: 34px; top: 72px; font-size: 1.35rem; transform: rotate(14deg); }
.thank-ring { width: 76px; height: 76px; border: 1px solid rgba(50,103,113,.50); border-radius: 50%; }
.thank-ring-one { left: -25px; bottom: -25px; }
.thank-ring-two { right: -20px; top: -26px; border-color: rgba(147,22,33,.52); }

@media (max-width: 900px) {
  .navbar { height: auto; padding: 17px 0; align-items: flex-start; gap: 14px; }
  .nav-links { gap: 12px 16px; }
  .creation-grid, .contact-layout { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
  .hero-inner { padding-top: 80px; }
  .two-col, .feature-grid { grid-template-columns: 1fr; }
  .tom-feature, .tom-feature img { min-height: 460px; height: 460px; }
}
@media (max-width: 560px) {
  .container, .navbar { width: min(100% - 24px, 1120px); }
  .nav-links { font-size: .84rem; }
  h1 { font-size: clamp(3.5rem, 21vw, 6rem); }
  .section { padding: 80px 0; }
  .card-content, .feature-card, .creation-card, .contact-form { padding: 24px; }
  .tom-thumbnails { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .tom-thumbnails img { height: 120px; }
  .thank-topline { gap: 9px; font-size: .62rem; letter-spacing: .1em; }
  .thank-code { display: none; }
  .thank-star-one { left: 14px; }
  .thank-star-two { right: 16px; }
}



/* Victory party effect */
.confetti-container {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  overflow: hidden;
}

.confetti-piece {
  position: absolute;
  top: -24px;
  width: 9px;
  height: 15px;
  border-radius: 2px;
  opacity: 0;
  animation: confetti-fall var(--fall-time) cubic-bezier(.15,.7,.25,1) forwards;
  transform: rotate(var(--rotation));
}

@keyframes confetti-fall {
  0% {
    opacity: 1;
    transform: translate3d(0, -30px, 0) rotate(0deg);
  }
  70% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate3d(var(--drift), 110vh, 0) rotate(var(--spin));
  }
}

.win-flash {
  position: fixed;
  inset: 0;
  z-index: 9998;
  pointer-events: none;
  background: radial-gradient(circle, rgba(195,223,224,.18), transparent 55%);
  animation: win-flash .55s ease-out forwards;
}

@keyframes win-flash {
  from { opacity: 1; }
  to { opacity: 0; }
}

.game-status.win {
  animation: winner-pulse .55s ease-in-out 3;
  color: var(--light);
}

@keyframes winner-pulse {
  50% { transform: scale(1.12); text-shadow: 0 0 25px rgba(195,223,224,.55); }
}