/* =================================================================
   SANAL SU — ANA SAYFA
   Yakacık Teknik ve Anadolu Lisesi · TÜBİTAK Projesi
   Müze + Oyun + Yarışma'yı birleştiren wow-faktörlü ana sayfa
   ================================================================= */

:root {
  --deep:      #03142b;
  --deep-2:    #062547;
  --ocean:     #0a4a86;
  --water:     #1a8fd1;
  --sky:       #6cc8ff;
  --ice:       #e9f6ff;
  --paper:     #f5fbff;
  --gold:      #f3c969;
  --gold-2:    #e9a83a;
  --teal:      #4dd0c1;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: #000;
  color: #fff;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.1;
}

a { color: inherit; text-decoration: none; }


/* =================================================================
   INTRO SEKANSI
   ================================================================= */
.intro-seq {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: #000;
  display: grid;
  place-items: center;
  animation: introFade 3.5s forwards;
  pointer-events: none;
}
@keyframes introFade {
  0%, 80% { opacity: 1; pointer-events: auto; }
  100%    { opacity: 0; visibility: hidden; }
}

.intro-drop {
  width: 60px; height: 80px;
  position: absolute;
  top: -100px; left: 50%;
  transform: translateX(-50%);
  filter: drop-shadow(0 10px 40px rgba(108,200,255,0.8));
  animation: introFall 1.4s cubic-bezier(.6, 0, .9, .6) 0.3s forwards;
}
.intro-drop svg { width: 100%; height: 100%; display: block; }
@keyframes introFall {
  0%   { top: -100px; transform: translateX(-50%) scale(0.6); opacity: 0; }
  10%  { opacity: 1; }
  85%  { top: 50vh; transform: translateX(-50%) scale(1); opacity: 1; }
  100% { top: 50vh; transform: translateX(-50%) scale(0.2); opacity: 0; }
}

.intro-ripple {
  position: absolute;
  top: 50%; left: 50%;
  width: 80px; height: 80px;
  border: 2px solid rgba(108,200,255,0.7);
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0);
  animation: introRipple 2.5s ease-out 1.4s forwards;
}
.intro-ripple.delay  { animation-delay: 1.6s; border-color: rgba(243,201,105,0.4); }
.intro-ripple.delay2 { animation-delay: 1.8s; border-color: rgba(108,200,255,0.3); }
@keyframes introRipple {
  0%   { transform: translate(-50%, -50%) scale(0);   opacity: 1; }
  100% { transform: translate(-50%, -50%) scale(40);  opacity: 0; }
}


/* =================================================================
   ARKA PLAN KATMANLARI
   ================================================================= */
.home {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  animation: homeIn 1s ease 2.8s backwards;
}
@keyframes homeIn {
  from { opacity: 0; transform: scale(1.05); }
  to   { opacity: 1; transform: scale(1); }
}

.bg-deep {
  position: fixed;
  inset: 0;
  z-index: -3;
  background:
    radial-gradient(ellipse at 30% 0%, #0a4a86 0%, transparent 50%),
    radial-gradient(ellipse at 70% 100%, #062547 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, #0d3a6b 0%, transparent 70%),
    linear-gradient(180deg, var(--deep) 0%, #01081a 100%);
}

.bg-waves {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
}
.wave {
  position: absolute;
  left: -25%; bottom: -300px;
  width: 150%; height: 700px;
  border-radius: 45%;
  opacity: 0.15;
  animation: waveSpin 25s linear infinite;
}
.wave1 { background: radial-gradient(circle, var(--sky), transparent 60%); }
.wave2 { background: radial-gradient(circle, var(--water), transparent 60%); animation-duration: 35s; animation-direction: reverse; bottom: -320px; }
.wave3 { background: radial-gradient(circle, var(--ocean), transparent 60%); animation-duration: 45s; bottom: -340px; }
@keyframes waveSpin { from { transform: rotate(0); } to { transform: rotate(360deg); } }

.bg-droplets {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}
.bg-droplets span {
  position: absolute;
  top: -10vh;
  width: 6px; height: 18px;
  background: linear-gradient(180deg, transparent, var(--sky));
  border-radius: 50% 50% 50% 50% / 20% 20% 80% 80%;
  opacity: 0.45;
  animation: fall linear infinite;
}
.bg-droplets span:nth-child(1)  { left: 5%;  animation-duration: 8s; }
.bg-droplets span:nth-child(2)  { left: 12%; animation-duration: 10s; animation-delay: 2s; }
.bg-droplets span:nth-child(3)  { left: 22%; animation-duration: 9s;  animation-delay: 4s; }
.bg-droplets span:nth-child(4)  { left: 30%; animation-duration: 11s; animation-delay: 1s; }
.bg-droplets span:nth-child(5)  { left: 42%; animation-duration: 7s;  animation-delay: 3s; }
.bg-droplets span:nth-child(6)  { left: 55%; animation-duration: 12s; }
.bg-droplets span:nth-child(7)  { left: 64%; animation-duration: 8s;  animation-delay: 5s; }
.bg-droplets span:nth-child(8)  { left: 73%; animation-duration: 9s;  animation-delay: 2s; }
.bg-droplets span:nth-child(9)  { left: 82%; animation-duration: 11s; animation-delay: 4s; }
.bg-droplets span:nth-child(10) { left: 88%; animation-duration: 10s; animation-delay: 1s; }
.bg-droplets span:nth-child(11) { left: 94%; animation-duration: 9s;  animation-delay: 3s; }
.bg-droplets span:nth-child(12) { left: 98%; animation-duration: 8s;  animation-delay: 5s; }
@keyframes fall {
  0%   { transform: translateY(-10vh); opacity: 0; }
  10%  { opacity: 0.6; }
  100% { transform: translateY(120vh); opacity: 0; }
}

.bg-stars {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 18%, rgba(255,255,255,0.6), transparent),
    radial-gradient(1.5px 1.5px at 26% 42%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1.5px 1.5px at 38% 12%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1.5px 1.5px at 54% 78%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1.5px 1.5px at 68% 28%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1.5px 1.5px at 82% 62%, rgba(255,255,255,0.45), transparent),
    radial-gradient(1.5px 1.5px at 92% 18%, rgba(255,255,255,0.4), transparent);
  animation: starTwinkle 6s ease-in-out infinite;
  pointer-events: none;
}
@keyframes starTwinkle {
  0%, 100% { opacity: 0.4; }
  50%      { opacity: 0.9; }
}


/* =================================================================
   ÜST ŞERİT
   ================================================================= */
.home {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.top-bar {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding: 18px 28px;
  z-index: 10;
  position: relative;
  flex-shrink: 0;
}
.brand-mini {
  display: none;
}

.audio-toggle {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  color: #fff;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all .25s;
}
.audio-toggle:hover { background: rgba(255,255,255,0.12); transform: scale(1.05); }
.audio-toggle.on {
  background: linear-gradient(135deg, var(--gold), var(--gold-2));
  color: #2a1d00;
  border-color: var(--gold);
  box-shadow: 0 0 24px rgba(243,201,105,0.5);
  animation: none;
}
.audio-toggle.pulse {
  animation: audioPulse 2.4s ease-in-out infinite;
}
@keyframes audioPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(243,201,105,0.5); }
  50%      { box-shadow: 0 0 24px 4px rgba(243,201,105,0.4); }
}

/* Hero üstünde brand */
.hero-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  margin-bottom: 22px;
  animation: titleIn 1s 2.9s backwards;
}
.hb-line {
  width: clamp(40px, 6vw, 80px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}
.hb-text { text-align: center; }
.hb-school {
  font-size: clamp(11px, 1.05vw, 13px);
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.06em;
  margin-bottom: 3px;
}
.hb-sub {
  font-size: 9px;
  color: var(--gold);
  letter-spacing: 0.32em;
  text-transform: uppercase;
}


/* =================================================================
   HERO
   ================================================================= */
.hero {
  text-align: center;
  padding: 10px 24px 30px;
  position: relative;
  z-index: 2;
  flex-shrink: 0;
}

.hero-title {
  font-size: clamp(48px, 10vw, 140px);
  font-weight: 900;
  line-height: 0.9;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(14px, 2.5vw, 40px);
  letter-spacing: -0.04em;
}
.ht-word {
  display: inline-block;
  animation: titleIn 1s cubic-bezier(.2,1,.3,1) backwards;
}
.ht-1 {
  background: linear-gradient(180deg, #ffffff 0%, rgba(255,255,255,0.4) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-style: italic;
  font-weight: 700;
  padding-right: 0.15em;
  animation-delay: 3.0s;
}
.ht-2 {
  position: relative;
  animation-delay: 3.2s;
}
@keyframes titleIn {
  from { opacity: 0; transform: translateY(40px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* "Su" kelimesi içinde dalga animasyonu */
.su-text {
  position: relative;
  z-index: 2;
  color: transparent;
  -webkit-text-stroke: 2px rgba(255,255,255,0.85);
  text-stroke: 2px rgba(255,255,255,0.85);
  filter: drop-shadow(0 4px 30px rgba(108,200,255,0.4));
}
.su-water {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
  pointer-events: none;
}
.su-water::after {
  content: "Su";
  position: absolute;
  inset: 0;
  font-family: 'Playfair Display', serif;
  font-weight: 900;
  font-size: inherit;
  background: linear-gradient(180deg, #6cc8ff 0%, #1a8fd1 60%, #0a4a86 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  clip-path: polygon(0 35%, 100% 30%, 100% 100%, 0 100%);
  animation: suFill 3s ease-in-out 4s infinite;
}
@keyframes suFill {
  0%, 100% { clip-path: polygon(0 35%, 100% 30%, 100% 100%, 0 100%); }
  50%      { clip-path: polygon(0 25%, 100% 38%, 100% 100%, 0 100%); }
}
.su-wave {
  position: absolute;
  top: 35%; left: -10%; right: -10%;
  height: 14%;
  background-repeat: repeat-x;
  background-size: 60px 16px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 16'><path d='M0 8 Q 15 0 30 8 T 60 8 V 16 H 0 Z' fill='%23bfeaff' opacity='0.6'/></svg>");
  animation: suWaveMove 4s linear infinite;
  z-index: 3;
}
.su-wave-2 {
  top: 42%;
  opacity: 0.5;
  animation: suWaveMove 7s linear infinite reverse;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 16'><path d='M0 8 Q 15 0 30 8 T 60 8 V 16 H 0 Z' fill='%234ec3ff' opacity='0.4'/></svg>");
}
@keyframes suWaveMove {
  from { background-position: 0 0; }
  to   { background-position: -60px 0; }
}

.hero-tagline {
  font-family: 'Playfair Display', serif;
  font-size: clamp(17px, 2vw, 26px);
  font-style: italic;
  font-weight: 500;
  color: var(--sky);
  margin-bottom: 12px;
  animation: titleIn 1s 3.5s backwards;
}
.hero-tagline em { color: var(--gold); font-style: italic; }

.hero-desc {
  font-size: clamp(12px, 1.1vw, 14px);
  color: rgba(255,255,255,0.65);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.6;
  font-weight: 300;
  animation: titleIn 1s 3.7s backwards;
}
.hero-desc strong { color: #fff; font-weight: 600; }


/* =================================================================
   MODÜLLER — 3 kart
   ================================================================= */
.modules {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  max-width: 1340px;
  width: 100%;
  margin: 0 auto;
  padding: 10px 32px 24px;
  position: relative;
  z-index: 2;
  perspective: 1500px;
  flex-shrink: 0;
}

.module {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: clamp(360px, 50vh, 480px);
  border-radius: 22px;
  overflow: hidden;
  background: linear-gradient(170deg, rgba(255,255,255,0.04) 0%, rgba(0,0,0,0.3) 100%);
  border: 1px solid rgba(255,255,255,0.08);
  cursor: pointer;
  transition: transform .6s cubic-bezier(.2,1,.3,1), border-color .4s, box-shadow .4s;
  animation: moduleIn 1.2s cubic-bezier(.2,1,.3,1) backwards;
  box-shadow: 0 24px 50px rgba(0,0,0,0.4);
}
.mod-museum { animation-delay: 4.0s; }
.mod-game   { animation-delay: 4.2s; }
.mod-quiz   { animation-delay: 4.4s; }
@keyframes moduleIn {
  from { opacity: 0; transform: translateY(80px) rotateX(20deg); }
  to   { opacity: 1; transform: translateY(0) rotateX(0); }
}

.module:hover {
  transform: translateY(-14px) scale(1.02);
  border-color: rgba(255,255,255,0.25);
  box-shadow: 0 50px 100px rgba(0,0,0,0.6);
}

/* Modül arka plan glow renkleri */
.mod-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
.mod-glow {
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  opacity: 0.4;
  transition: opacity .5s;
}
.mod-museum .mod-glow {
  background: radial-gradient(ellipse at 50% 30%, var(--water) 0%, transparent 50%);
}
.mod-game .mod-glow {
  background: radial-gradient(ellipse at 50% 30%, var(--gold) 0%, transparent 50%);
}
.mod-quiz .mod-glow {
  background: radial-gradient(ellipse at 50% 30%, var(--teal) 0%, transparent 50%);
}
.module:hover .mod-glow { opacity: 0.7; }

/* Modül art alanı (üst yarı) */
.mod-art {
  position: relative;
  flex: 0 0 50%;
  min-height: 180px;
  overflow: hidden;
  z-index: 1;
}

/* — Müze art: perspektif zemin + 3 vitrin — */
.art-floor {
  position: absolute;
  bottom: 0; left: -20%; right: -20%;
  height: 70%;
  transform: rotateX(64deg);
  transform-origin: bottom center;
  background:
    repeating-linear-gradient(90deg, #02101f 0px, #02101f 30px, #0a2540 30px, #0a2540 31px),
    repeating-linear-gradient(0deg, #02101f 0px, #02101f 30px, #0a2540 30px, #0a2540 31px),
    radial-gradient(ellipse at center top, #1a3a5f 0%, #02101f 70%);
}
.art-light {
  position: absolute;
  top: -10%; left: 50%;
  transform: translateX(-50%);
  width: 70%; height: 70%;
  background: radial-gradient(ellipse at top, rgba(255,236,200,0.2) 0%, transparent 60%);
  pointer-events: none;
}
.art-vitrines {
  position: absolute;
  bottom: 20%;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 18px;
  align-items: flex-end;
  z-index: 2;
}
.art-vitrine {
  width: clamp(40px, 4.5vw, 56px);
  height: clamp(60px, 7vw, 80px);
  background: linear-gradient(180deg, rgba(108,200,255,0.18), rgba(108,200,255,0.05));
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 6px 6px 2px 2px;
  display: grid;
  place-items: center;
  font-size: clamp(22px, 2.4vw, 30px);
  position: relative;
  box-shadow: inset 0 0 20px rgba(108,200,255,0.2);
  animation: vitrineFloat 3s ease-in-out infinite;
}
.art-vitrine.tall { height: clamp(76px, 8.8vw, 100px); animation-delay: 0.5s; }
.art-vitrine:nth-child(3) { animation-delay: 1s; }
@keyframes vitrineFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}
.module:hover .art-vitrine { transform: translateY(-12px); }
.module:hover .art-vitrine.tall { transform: translateY(-16px); }

/* — Oyun art: dev damla içinde 100 L — */
.art-drop {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: clamp(90px, 11vw, 130px);
  height: clamp(120px, 14vw, 170px);
  filter: drop-shadow(0 18px 40px rgba(108,200,255,0.5));
  animation: dropFloat 4s ease-in-out infinite;
}
.art-drop svg { width: 100%; height: 100%; display: block; }
.game-fill { animation: gameFill 4s ease-in-out infinite; }
@keyframes gameFill {
  0%, 100% { y: 40; }
  50%      { y: 50; }
}
@keyframes dropFloat {
  0%, 100% { transform: translate(-50%, -50%); }
  50%      { transform: translate(-50%, calc(-50% - 8px)); }
}
.art-num {
  position: absolute;
  top: 55%; left: 50%;
  transform: translate(-50%, -50%);
  font-family: 'Playfair Display', serif;
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 800;
  color: #fff;
  text-shadow: 0 2px 12px rgba(0,0,0,0.5);
  z-index: 2;
}
.art-num small {
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  font-weight: 500;
  margin-left: 3px;
  opacity: 0.75;
}

/* — Yarışma art: ödül podyumu — */
.art-podium {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}
.podium-step {
  position: relative;
  width: clamp(120px, 14vw, 180px);
  padding: clamp(14px, 1.6vw, 22px) clamp(12px, 1.4vw, 20px);
  background: linear-gradient(180deg, var(--gold), var(--gold-2));
  border-radius: 14px;
  text-align: center;
  box-shadow:
    0 20px 50px rgba(243,201,105,0.4),
    inset 0 1px 0 rgba(255,255,255,0.3);
  animation: podiumPulse 3s ease-in-out infinite;
}
@keyframes podiumPulse {
  0%, 100% { box-shadow: 0 20px 50px rgba(243,201,105,0.3); }
  50%      { box-shadow: 0 25px 65px rgba(243,201,105,0.55); }
}
.podium-lbl {
  font-family: 'Playfair Display', serif;
  font-size: clamp(16px, 1.7vw, 22px);
  font-weight: 800;
  color: #2a1d00;
  letter-spacing: 0.02em;
}
.art-q {
  position: absolute;
  top: 18%; right: 18%;
  font-family: 'Playfair Display', serif;
  font-size: clamp(48px, 5.5vw, 80px);
  font-weight: 900;
  color: var(--teal);
  text-shadow: 0 0 30px rgba(77,208,193,0.6);
  animation: qBounce 2.5s ease-in-out infinite;
}
@keyframes qBounce {
  0%, 100% { transform: rotate(-8deg) scale(1); }
  50%      { transform: rotate(8deg) scale(1.1); }
}

/* Modül içerik */
.mod-content {
  position: relative;
  z-index: 2;
  padding: 18px 22px 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.6) 30%, rgba(0,0,0,0.85) 100%);
}
.mod-num {
  font-family: 'Playfair Display', serif;
  font-size: 12px;
  font-weight: 700;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.2em;
  margin-bottom: 6px;
}
.mod-museum .mod-num { color: var(--sky); }
.mod-game .mod-num   { color: var(--gold); }
.mod-quiz .mod-num   { color: var(--teal); }

.mod-name {
  font-size: clamp(17px, 1.5vw, 22px);
  margin-bottom: 6px;
  color: #fff;
  line-height: 1.15;
}
.mod-desc {
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  line-height: 1.5;
  margin-bottom: 12px;
}

.mod-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 16px;
}
.mod-tags span {
  font-size: 10px;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.7);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 4px 10px;
  border-radius: 999px;
}

.mod-cta {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 18px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: all .3s;
}
.mod-museum .mod-cta {
  background: linear-gradient(135deg, var(--water), #0a6cb2);
  color: #fff;
  box-shadow: 0 10px 24px -8px rgba(26,143,209,0.5);
}
.mod-game .mod-cta {
  background: linear-gradient(135deg, var(--gold), var(--gold-2));
  color: #2a1d00;
  box-shadow: 0 10px 24px -8px rgba(243,201,105,0.5);
}
.mod-quiz .mod-cta {
  background: linear-gradient(135deg, var(--teal), #3aa89a);
  color: #062c2a;
  box-shadow: 0 10px 24px -8px rgba(77,208,193,0.5);
}
.mod-cta svg { transition: transform .3s; }
.module:hover .mod-cta { transform: scale(1.04); }
.module:hover .mod-cta svg { transform: translateX(4px); }


/* =================================================================
   ALT İSTATİSTİK ŞERİDİ
   ================================================================= */
.stats {
  display: flex;
  align-items: center;
  justify-content: space-around;
  max-width: 1340px;
  margin: 0 auto;
  padding: 16px 32px;
  gap: 8px;
  flex-wrap: wrap;
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  background: rgba(0,0,0,0.2);
  backdrop-filter: blur(4px);
  position: relative;
  z-index: 2;
  flex-shrink: 0;
}
.stat {
  text-align: center;
  padding: 4px 10px;
}
.stat strong {
  display: block;
  font-family: 'Playfair Display', serif;
  font-size: clamp(18px, 1.8vw, 26px);
  font-weight: 800;
  background: linear-gradient(180deg, #fff 0%, var(--sky) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 2px;
  line-height: 1;
}
.stat span {
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}
.stat.divider {
  width: 1px;
  height: 24px;
  background: linear-gradient(180deg, transparent, rgba(255,255,255,0.15), transparent);
  padding: 0;
}

.foot {
  text-align: center;
  padding: 14px 24px;
  position: relative;
  z-index: 2;
  flex-shrink: 0;
}
.foot p {
  font-size: 10px;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.22em;
  text-transform: uppercase;
}


/* =================================================================
   RESPONSIVE
   ================================================================= */
/* Düşük yükseklikli ekranlar (1080p ve altı laptop) */
@media (max-height: 800px) {
  .hero { padding: 4px 24px 16px; }
  .hero-brand { margin-bottom: 12px; }
  .hero-title { margin-bottom: 10px; font-size: clamp(40px, 8.5vw, 110px); }
  .hero-tagline { margin-bottom: 8px; font-size: clamp(15px, 1.6vw, 22px); }
  .hero-desc { font-size: 11px; }
  .modules { padding: 6px 28px 16px; }
  .module { min-height: clamp(320px, 56vh, 440px); }
  .mod-art { min-height: 150px; }
  .stats { padding: 12px 28px; }
  .stat strong { font-size: clamp(16px, 1.7vw, 22px); }
  .stat span { font-size: 9px; }
  .foot { padding: 10px 24px; }
}

@media (max-width: 1100px) {
  .modules { grid-template-columns: 1fr 1fr; gap: 16px; padding: 10px 24px 24px; }
  .mod-quiz { grid-column: 1 / -1; max-width: 700px; margin: 0 auto; width: 100%; min-height: 280px; }
  .mod-quiz .mod-art { min-height: 140px; }
}
@media (max-width: 760px) {
  .top-bar { padding: 12px 18px; }
  .hero { padding: 6px 18px 24px; }
  .hero-title { gap: 12px; font-size: clamp(40px, 13vw, 80px); }
  .hero-brand { gap: 14px; margin-bottom: 14px; }
  .hb-line { width: clamp(20px, 6vw, 40px); }
  .hb-school { font-size: 10px; }
  .hb-sub { font-size: 8px; letter-spacing: 0.22em; }
  .modules { grid-template-columns: 1fr; padding: 8px 18px 20px; gap: 14px; }
  .mod-quiz { grid-column: auto; max-width: none; }
  .module { min-height: 360px; }
  .stats { padding: 14px 14px; gap: 4px; }
  .stat.divider { display: none; }
  .stat { padding: 4px 8px; }
  .stat strong { font-size: 16px; }
  .stat span { font-size: 9px; letter-spacing: 0.08em; }
  .foot { padding: 12px 16px; }
  .foot p { font-size: 9px; letter-spacing: 0.15em; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01s !important; transition-duration: 0.1s !important; }
}