/* ==========================================================================
   Nörojenik Bozukluklarda Ses ve Yutma Bozuklukları — TÜBİTAK 2237-A
   Ana stil dosyası  |  assets/css/style.css
   --------------------------------------------------------------------------
   RENKLERİ DEĞİŞTİRMEK İÇİN: sadece aşağıdaki ":root" bloğundaki değerleri
   değiştirmeniz yeterlidir. Tüm site otomatik olarak güncellenir.
   ========================================================================== */

/* ---------- 1. Değişkenler ---------- */
:root {
  /* Ana renkler */
  --navy-900: #0A1D33;
  --navy-800: #0F2A47;
  --navy-700: #163A5F;
  --navy-600: #1E4D7B;
  --teal-500: #17A2A2;
  --teal-600: #128C8C;
  --teal-400: #34BFBF;
  --teal-100: #E2F5F5;

  /* Nötrler */
  --ink: #1B2733;
  --ink-soft: #4A5A6A;
  --ink-mute: #74838F;
  --line: #DFE6EE;
  --line-soft: #EDF2F7;
  --bg: #FFFFFF;
  --bg-alt: #F4F7FA;
  --bg-tint: #EEF3F8;

  /* Vurgu */
  --amber: #E0A22B;
  --amber-soft: #FDF4E3;

  /* Tipografi */
  --font-sans: "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  /* Ölçüler */
  --wrap: 1180px;
  --wrap-narrow: 860px;
  --radius: 14px;
  --radius-sm: 9px;
  --radius-lg: 22px;

  /* Gölgeler */
  --shadow-sm: 0 1px 2px rgba(15, 42, 71, .06), 0 2px 8px rgba(15, 42, 71, .05);
  --shadow-md: 0 4px 14px rgba(15, 42, 71, .08), 0 12px 32px rgba(15, 42, 71, .07);
  --shadow-lg: 0 18px 50px rgba(10, 29, 51, .16);

  --header-h: 74px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.72;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--teal-600); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--navy-700); }
ul, ol { padding-left: 1.25em; }
button { font-family: inherit; }
:focus-visible { outline: 3px solid var(--teal-400); outline-offset: 2px; border-radius: 4px; }
::selection { background: var(--teal-100); color: var(--navy-800); }

/* ---------- 3. Tipografi ---------- */
h1, h2, h3, h4, h5 {
  margin: 0 0 .6em;
  line-height: 1.22;
  color: var(--navy-800);
  font-weight: 700;
  letter-spacing: -.015em;
}
h1 { font-size: clamp(2rem, 4.6vw, 3.1rem); font-weight: 800; }
h2 { font-size: clamp(1.55rem, 3vw, 2.15rem); }
h3 { font-size: clamp(1.18rem, 2vw, 1.42rem); }
h4 { font-size: 1.06rem; }
p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }
.lead { font-size: 1.14rem; color: var(--ink-soft); line-height: 1.75; }
strong, b { font-weight: 650; color: var(--navy-800); }
small { font-size: .86rem; }
.text-center { text-align: center; }
.mute { color: var(--ink-mute); }

/* ---------- 4. Yerleşim ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: 22px; }
.wrap--narrow { max-width: var(--wrap-narrow); }
.section { padding: clamp(56px, 7vw, 96px) 0; }
.section--alt { background: var(--bg-alt); }
.section--tint { background: var(--bg-tint); }
.section--tight { padding: clamp(38px, 5vw, 62px) 0; }
.divider { height: 1px; background: var(--line); border: 0; margin: 0; }

/* Bölüm başlığı */
.sec-head { max-width: 760px; margin-bottom: clamp(30px, 4vw, 50px); }
.sec-head--center { margin-inline: auto; text-align: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .78rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--teal-600); margin-bottom: 14px;
}
.eyebrow::before {
  content: ""; width: 26px; height: 2px; background: var(--teal-500); border-radius: 2px;
}
.sec-head--center .eyebrow::before { display: none; }
.sec-head p { color: var(--ink-soft); font-size: 1.06rem; }

/* ---------- 5. Butonlar ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 26px;
  border: 1px solid transparent; border-radius: 999px;
  font-size: .97rem; font-weight: 650; letter-spacing: .01em;
  cursor: pointer; text-align: center;
  transition: transform .18s var(--ease), box-shadow .22s var(--ease), background .2s, color .2s, border-color .2s;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--teal-500); color: #fff; box-shadow: 0 6px 18px rgba(23, 162, 162, .3); }
.btn--primary:hover { background: var(--teal-600); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 26px rgba(23, 162, 162, .38); }
.btn--dark { background: var(--navy-800); color: #fff; }
.btn--dark:hover { background: var(--navy-700); color: #fff; transform: translateY(-2px); }
.btn--ghost { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .45); }
.btn--ghost:hover { background: rgba(255, 255, 255, .12); color: #fff; border-color: #fff; }
.btn--outline { background: #fff; color: var(--navy-800); border-color: var(--line); box-shadow: var(--shadow-sm); }
.btn--outline:hover { border-color: var(--teal-500); color: var(--teal-600); transform: translateY(-2px); }
.btn--sm { padding: 9px 18px; font-size: .88rem; }
.btn--block { width: 100%; }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }
.btn-row--center { justify-content: center; }

/* ---------- 6. Üst bar + Header ---------- */
.topbar {
  background: var(--navy-900); color: rgba(255, 255, 255, .82);
  font-size: .82rem; letter-spacing: .02em;
}
.topbar__in { display: flex; flex-wrap: wrap; gap: 6px 22px; align-items: center; justify-content: center; padding: 8px 22px; }
.topbar b { color: #fff; font-weight: 600; }
.topbar a { color: var(--teal-400); }
.topbar a:hover { color: #fff; }

.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(255, 255, 255, .93);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .25s var(--ease);
}
.site-header.is-stuck { box-shadow: 0 4px 20px rgba(15, 42, 71, .09); }
.nav { display: flex; align-items: center; gap: 20px; height: var(--header-h); }

.brand { display: flex; align-items: center; gap: 12px; margin-right: auto; min-width: 0; }
.brand__mark {
  flex: 0 0 auto; width: 42px; height: 42px; border-radius: 11px;
  background: linear-gradient(145deg, var(--navy-700), var(--navy-900));
  display: grid; place-items: center; box-shadow: var(--shadow-sm);
}
.brand__mark svg { width: 24px; height: 24px; }
.brand__text { min-width: 0; }
.brand__title {
  display: block; font-size: .92rem; font-weight: 750; color: var(--navy-800);
  letter-spacing: -.01em; line-height: 1.2; white-space: nowrap;
}
.brand__sub {
  display: block; font-size: .7rem; font-weight: 600; letter-spacing: .1em;
  text-transform: uppercase; color: var(--teal-600); white-space: nowrap;
}

.nav__menu { display: flex; align-items: center; gap: 6px; }
.nav__links { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav__links a {
  display: block; padding: 9px 13px; border-radius: 8px;
  font-size: .94rem; font-weight: 550; color: var(--ink-soft);
  transition: background .18s, color .18s;
}
.nav__links a:hover { background: var(--bg-alt); color: var(--navy-800); }
.nav__links a.is-active { color: var(--navy-800); font-weight: 700; background: var(--teal-100); }
.nav__cta { margin-left: 8px; }

.nav-toggle {
  display: none; width: 44px; height: 40px; border: 1px solid var(--line);
  background: #fff; border-radius: 10px; cursor: pointer; padding: 0;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  display: block; width: 20px; height: 2px; background: var(--navy-800);
  border-radius: 2px; margin-inline: auto; transition: transform .25s var(--ease), opacity .2s;
}
.nav-toggle span { position: relative; }
.nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 0; }
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 1000px) {
  .nav-toggle { display: block; }
  .nav__menu {
    display: block;
    position: fixed; inset: calc(var(--header-h)) 0 auto 0;
    background: #fff; border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
    max-height: 0; overflow: hidden; transition: max-height .35s var(--ease);
  }
  .nav__menu.is-open { max-height: min(78vh, 620px); overflow-y: auto; }
  .nav__links { flex-direction: column; align-items: stretch; gap: 0; padding: 10px 16px 20px; }
  .nav__links a { padding: 14px 12px; border-bottom: 1px solid var(--line-soft); border-radius: 0; font-size: 1rem; }
  .nav__cta { margin: 14px 12px 0; }
  .nav__cta .btn { width: 100%; }
}

/* ---------- 7. Hero ---------- */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background:
    radial-gradient(1100px 480px at 12% -10%, rgba(23, 162, 162, .32), transparent 62%),
    radial-gradient(900px 500px at 92% 8%, rgba(30, 77, 123, .55), transparent 60%),
    linear-gradient(165deg, var(--navy-800) 0%, var(--navy-900) 62%, #06131F 100%);
}
.hero__pattern {
  position: absolute; inset: 0; opacity: .42; pointer-events: none;
  background-repeat: no-repeat; background-size: cover; background-position: center bottom;
}
.hero__in { position: relative; z-index: 2; padding: clamp(60px, 9vw, 118px) 0 clamp(52px, 7vw, 88px); }
.hero__grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: clamp(32px, 5vw, 68px); align-items: center; }
.hero .eyebrow { color: var(--teal-400); }
.hero .eyebrow::before { background: var(--teal-400); }
.hero h1 { color: #fff; margin-bottom: 20px; text-wrap: balance; }
.hero h1 em { font-style: normal; color: var(--teal-400); }
.hero__sub { font-size: clamp(1.02rem, 1.5vw, 1.18rem); color: rgba(255, 255, 255, .84); max-width: 60ch; margin-bottom: 26px; }
.hero__rule { width: 76px; height: 3px; background: var(--teal-400); border: 0; border-radius: 3px; margin: 0 0 24px; }

.hero__chips { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 30px; list-style: none; padding: 0; }
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 15px; border-radius: 999px;
  background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .18);
  font-size: .85rem; font-weight: 600; color: #fff; letter-spacing: .01em;
}
.chip svg { width: 15px; height: 15px; flex: 0 0 auto; opacity: .9; }
.chip--accent { background: rgba(23, 162, 162, .22); border-color: rgba(52, 191, 191, .5); }

.hero__lead-person {
  display: flex; align-items: center; gap: 14px; margin-top: 30px;
  padding-top: 24px; border-top: 1px solid rgba(255, 255, 255, .14);
  font-size: .93rem; color: rgba(255, 255, 255, .78);
}
.hero__lead-person b { color: #fff; display: block; font-weight: 650; }

/* Hero kartı (geri sayım + hızlı bilgi) */
.hero-card {
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .17);
  border-radius: var(--radius-lg);
  padding: 26px;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-lg);
}
.hero-card__label {
  font-size: .74rem; font-weight: 700; letter-spacing: .15em; text-transform: uppercase;
  color: var(--teal-400); margin-bottom: 16px;
}
.countdown { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-bottom: 22px; }
.countdown__cell {
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--radius-sm); padding: 12px 4px; text-align: center;
}
.countdown__num { display: block; font-size: 1.7rem; font-weight: 800; color: #fff; line-height: 1.1; font-variant-numeric: tabular-nums; }
.countdown__unit { display: block; font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: rgba(255, 255, 255, .62); margin-top: 4px; }
.hero-card__note { font-size: .88rem; color: rgba(255, 255, 255, .72); margin-bottom: 18px; }

.hero-facts { list-style: none; margin: 0; padding: 0; }
.hero-facts li {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 11px 0; border-top: 1px solid rgba(255, 255, 255, .12);
  font-size: .92rem; color: rgba(255, 255, 255, .82);
}
.hero-facts li:first-child { border-top: 0; padding-top: 0; }
.hero-facts svg { width: 18px; height: 18px; flex: 0 0 auto; color: var(--teal-400); margin-top: 3px; }
.hero-facts b { color: #fff; font-weight: 650; }

@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero-card { order: 2; }
}

/* ---------- 8. İstatistik şeridi ---------- */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md); overflow: hidden;
  margin-top: -46px; position: relative; z-index: 5;
}
.stats__item { padding: 26px 20px; text-align: center; border-left: 1px solid var(--line-soft); }
.stats__item:first-child { border-left: 0; }
.stats__num {
  display: block; font-size: clamp(1.7rem, 3vw, 2.3rem); font-weight: 800;
  color: var(--navy-800); line-height: 1.1; letter-spacing: -.02em;
}
.stats__num span { color: var(--teal-500); }
.stats__lbl { display: block; font-size: .8rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-mute); margin-top: 7px; }
@media (max-width: 760px) {
  .stats { grid-template-columns: repeat(2, 1fr); margin-top: -30px; }
  .stats__item:nth-child(3) { border-left: 0; }
  .stats__item:nth-child(n+3) { border-top: 1px solid var(--line-soft); }
}

/* ---------- 9. Kartlar ---------- */
.grid { display: grid; gap: 22px; }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 980px) { .grid--3, .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; } }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 26px; box-shadow: var(--shadow-sm);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s;
  height: 100%;
}
.card--hover:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--teal-400); }
.card h3 { margin-bottom: .5em; }
.card p { color: var(--ink-soft); font-size: .98rem; margin-bottom: 0; }
.card__icon {
  width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center;
  background: var(--teal-100); color: var(--teal-600); margin-bottom: 18px;
}
.card__icon svg { width: 24px; height: 24px; }
.card--dark { background: linear-gradient(155deg, var(--navy-800), var(--navy-900)); border-color: transparent; color: rgba(255, 255, 255, .84); }
.card--dark h3 { color: #fff; }
.card--dark p { color: rgba(255, 255, 255, .78); }
.card__num {
  font-size: .78rem; font-weight: 800; letter-spacing: .1em; color: var(--teal-500);
  display: block; margin-bottom: 10px;
}

/* Kanıt kutusu */
.evidence {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px;
}
@media (max-width: 860px) { .evidence { grid-template-columns: 1fr; } }
.evidence__item {
  background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--teal-500);
  border-radius: var(--radius-sm); padding: 24px;
}
.evidence__big { display: block; font-size: 2.1rem; font-weight: 800; color: var(--navy-800); line-height: 1.05; letter-spacing: -.02em; }
.evidence__item p { font-size: .95rem; color: var(--ink-soft); margin: 10px 0 0; }
.evidence__src { display: block; margin-top: 12px; font-size: .8rem; color: var(--ink-mute); font-style: italic; }

/* Alıntı */
.quote {
  background: var(--navy-800); color: #fff; border-radius: var(--radius-lg);
  padding: clamp(30px, 5vw, 52px); position: relative; overflow: hidden;
}
.quote::before {
  content: "\201C"; position: absolute; top: -30px; right: 24px;
  font-size: 12rem; line-height: 1; color: rgba(52, 191, 191, .18); font-family: Georgia, serif;
}
.quote p { font-size: clamp(1.05rem, 1.9vw, 1.3rem); line-height: 1.6; color: #fff; position: relative; }
.quote cite { display: block; margin-top: 18px; font-size: .9rem; color: var(--teal-400); font-style: normal; }

/* ---------- 10. Liste stilleri ---------- */
.ticks { list-style: none; padding: 0; margin: 0; }
.ticks li {
  position: relative; padding: 0 0 0 34px; margin-bottom: 14px;
  color: var(--ink-soft); font-size: 1rem;
}
.ticks li::before {
  content: ""; position: absolute; left: 0; top: .38em;
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--teal-100) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23128C8C' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center / 12px 12px no-repeat;
}
.ticks--tight li { margin-bottom: 9px; font-size: .96rem; }

.numlist { list-style: none; counter-reset: n; padding: 0; margin: 0; }
.numlist > li { counter-increment: n; position: relative; padding-left: 52px; margin-bottom: 26px; }
.numlist > li::before {
  content: counter(n); position: absolute; left: 0; top: 0;
  width: 34px; height: 34px; border-radius: 10px;
  background: var(--navy-800); color: #fff;
  font-size: .95rem; font-weight: 700; display: grid; place-items: center;
}
.numlist h4 { margin-bottom: .35em; }
.numlist p { color: var(--ink-soft); font-size: .97rem; margin: 0; }

/* ---------- 11. Program (sekmeler + ders listesi) ---------- */
.daytabs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
.daytab {
  flex: 1 1 180px; text-align: left; cursor: pointer;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 15px 18px; box-shadow: var(--shadow-sm);
  transition: all .22s var(--ease);
}
.daytab:hover { border-color: var(--teal-400); transform: translateY(-2px); }
.daytab__k { display: block; font-size: .74rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--teal-600); }
.daytab__t { display: block; font-size: .95rem; font-weight: 650; color: var(--navy-800); margin-top: 4px; line-height: 1.35; }
.daytab__d { display: block; font-size: .8rem; color: var(--ink-mute); margin-top: 5px; }
.daytab.is-active {
  background: var(--navy-800); border-color: var(--navy-800);
  box-shadow: 0 8px 24px rgba(15, 42, 71, .22);
}
.daytab.is-active .daytab__k { color: var(--teal-400); }
.daytab.is-active .daytab__t { color: #fff; }
.daytab.is-active .daytab__d { color: rgba(255, 255, 255, .68); }

.dayhead {
  display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: baseline;
  padding: 20px 24px; background: var(--teal-100);
  border: 1px solid var(--teal-400); border-radius: var(--radius) var(--radius) 0 0;
  border-bottom: 0;
}
.dayhead h3 { margin: 0; font-size: 1.2rem; }
.dayhead span { font-size: .9rem; color: var(--teal-600); font-weight: 600; }

.lessons { border: 1px solid var(--line); border-radius: 0 0 var(--radius) var(--radius); background: #fff; overflow: hidden; }
.lesson { border-top: 1px solid var(--line-soft); }
.lesson:first-child { border-top: 0; }
.lesson__btn {
  width: 100%; display: grid; grid-template-columns: 108px 1fr 26px; gap: 18px; align-items: start;
  background: none; border: 0; padding: 18px 22px; text-align: left; cursor: pointer;
  transition: background .18s;
}
.lesson__btn:hover { background: var(--bg-alt); }
.lesson__time {
  font-size: .84rem; font-weight: 700; color: var(--teal-600);
  font-variant-numeric: tabular-nums; letter-spacing: .01em; padding-top: 2px;
}
.lesson__time small { display: block; font-weight: 600; color: var(--ink-mute); font-size: .75rem; letter-spacing: 0; }
.lesson__title { font-size: 1rem; font-weight: 620; color: var(--navy-800); line-height: 1.45; }
.lesson__who { display: block; font-size: .85rem; font-weight: 500; color: var(--ink-mute); margin-top: 5px; }
.lesson__chev {
  width: 26px; height: 26px; border-radius: 50%; background: var(--bg-alt);
  display: grid; place-items: center; color: var(--ink-soft);
  transition: transform .25s var(--ease), background .2s; margin-top: 2px;
}
.lesson__chev svg { width: 14px; height: 14px; }
.lesson.is-open .lesson__chev { transform: rotate(180deg); background: var(--teal-100); color: var(--teal-600); }
.lesson__body {
  display: grid; grid-template-rows: 0fr; transition: grid-template-rows .3s var(--ease);
}
.lesson.is-open .lesson__body { grid-template-rows: 1fr; }
.lesson__body > div { overflow: hidden; }
.lesson__body p {
  margin: 0; padding: 0 22px 22px 148px; font-size: .95rem; color: var(--ink-soft); line-height: 1.7;
}
.lesson--break { background: var(--bg-alt); }
.lesson--break .lesson__btn { cursor: default; grid-template-columns: 108px 1fr; }
.lesson--break .lesson__btn:hover { background: var(--bg-alt); }
.lesson--break .lesson__title { color: var(--ink-mute); font-weight: 600; font-size: .92rem; letter-spacing: .04em; text-transform: uppercase; }
@media (max-width: 700px) {
  .lesson__btn { grid-template-columns: 1fr 26px; gap: 10px; }
  .lesson__time { grid-column: 1 / -1; }
  .lesson__body p { padding-left: 22px; }
  .lesson--break .lesson__btn { grid-template-columns: 1fr; }
}

.daypanel { display: none; }
.daypanel.is-active { display: block; animation: fadeUp .35s var(--ease); }
@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.prog-tools { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.prog-note {
  background: var(--amber-soft); border: 1px solid #F0DCB0; border-radius: var(--radius-sm);
  padding: 16px 20px; font-size: .93rem; color: #7A5A16; display: flex; gap: 12px; align-items: flex-start;
}
.prog-note svg { width: 20px; height: 20px; flex: 0 0 auto; margin-top: 2px; }

/* ---------- 12. Akordeon (SSS) ---------- */
.acc { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.acc__item { border-top: 1px solid var(--line-soft); }
.acc__item:first-child { border-top: 0; }
.acc__btn {
  width: 100%; display: flex; gap: 16px; align-items: center; justify-content: space-between;
  background: none; border: 0; padding: 20px 24px; cursor: pointer; text-align: left;
  font-size: 1.02rem; font-weight: 620; color: var(--navy-800); transition: background .18s;
}
.acc__btn:hover { background: var(--bg-alt); }
.acc__btn svg { width: 20px; height: 20px; flex: 0 0 auto; color: var(--teal-600); transition: transform .25s var(--ease); }
.acc__item.is-open .acc__btn svg { transform: rotate(45deg); }
.acc__panel { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .3s var(--ease); }
.acc__item.is-open .acc__panel { grid-template-rows: 1fr; }
.acc__panel > div { overflow: hidden; }
.acc__panel .inner { padding: 0 24px 22px; color: var(--ink-soft); font-size: .98rem; }
.acc__panel .inner > *:last-child { margin-bottom: 0; }

/* ---------- 13. Zaman çizelgesi ---------- */
.timeline { position: relative; padding-left: 38px; margin: 0; list-style: none; }
.timeline::before {
  content: ""; position: absolute; left: 11px; top: 8px; bottom: 8px;
  width: 2px; background: linear-gradient(var(--teal-400), var(--line));
}
.timeline li { position: relative; margin-bottom: 30px; }
.timeline li:last-child { margin-bottom: 0; }
.timeline li::before {
  content: ""; position: absolute; left: -34px; top: 5px;
  width: 16px; height: 16px; border-radius: 50%;
  background: #fff; border: 3px solid var(--teal-500);
  box-shadow: 0 0 0 4px #fff;
}
.timeline .tl-date { display: block; font-size: .8rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--teal-600); margin-bottom: 4px; }
.timeline h4 { margin-bottom: .3em; }
.timeline p { color: var(--ink-soft); font-size: .96rem; margin: 0; }

/* ---------- 14. Kişi kartları ---------- */
.people { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 18px; }
.person {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow-sm);
  transition: transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s;
}
.person:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--teal-400); }
.person__av {
  width: 54px; height: 54px; border-radius: 50%; margin-bottom: 14px;
  background: linear-gradient(145deg, var(--teal-500), var(--navy-700));
  color: #fff; display: grid; place-items: center;
  font-size: 1.05rem; font-weight: 700; letter-spacing: .02em;
}
.person__name { font-size: 1.02rem; font-weight: 700; color: var(--navy-800); line-height: 1.35; }
.person__role { font-size: .84rem; font-weight: 600; color: var(--teal-600); margin-top: 4px; }
.person__inst { font-size: .88rem; color: var(--ink-mute); margin-top: 8px; line-height: 1.5; }
.person__topic {
  margin-top: 14px; padding-top: 13px; border-top: 1px solid var(--line-soft);
  font-size: .87rem; color: var(--ink-soft);
}
.person__topic b { display: block; font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-mute); margin-bottom: 4px; font-weight: 700; }

.person--lead {
  grid-column: 1 / -1;
  display: grid; grid-template-columns: 110px 1fr; gap: 26px; align-items: center;
  background: linear-gradient(150deg, var(--navy-800), var(--navy-900)); border-color: transparent;
  padding: 30px;
}
.person--lead .person__av { width: 104px; height: 104px; font-size: 1.9rem; margin: 0; }
.person--lead .person__name { color: #fff; font-size: 1.35rem; }
.person--lead .person__role { color: var(--teal-400); }
.person--lead .person__inst { color: rgba(255, 255, 255, .74); }
.person--lead .person__topic { border-top-color: rgba(255, 255, 255, .16); color: rgba(255, 255, 255, .8); }
.person--lead .person__topic b { color: rgba(255, 255, 255, .55); }
@media (max-width: 620px) {
  .person--lead { grid-template-columns: 1fr; text-align: center; }
  .person--lead .person__av { margin-inline: auto; }
}

/* ---------- 15. Logo şeridi ---------- */
.logos { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 26px 46px; }
.logos img { height: 62px; width: auto; object-fit: contain; filter: grayscale(1); opacity: .62; transition: filter .25s, opacity .25s; }
.logos img:hover { filter: none; opacity: 1; }
.logos--plain img { filter: none; opacity: 1; }

/* ---------- 16. Tablo ---------- */
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
table.tbl { width: 100%; border-collapse: collapse; font-size: .95rem; min-width: 560px; }
table.tbl th, table.tbl td { padding: 15px 18px; text-align: left; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
table.tbl thead th { background: var(--navy-800); color: #fff; font-weight: 650; font-size: .88rem; letter-spacing: .03em; }
table.tbl tbody tr:last-child td { border-bottom: 0; }
table.tbl tbody tr:hover { background: var(--bg-alt); }
table.tbl td strong { color: var(--navy-800); }

/* ---------- 17. Form / gömülü içerik ---------- */
.embed-box {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-md); overflow: hidden;
}
.embed-box__head { padding: 20px 24px; border-bottom: 1px solid var(--line); background: var(--bg-alt); }
.embed-box__head h3 { margin: 0; font-size: 1.1rem; }
.embed-box__head p { margin: 6px 0 0; font-size: .9rem; color: var(--ink-mute); }
.embed-box iframe { width: 100%; min-height: 760px; border: 0; display: block; }
.embed-fallback { padding: 44px 26px; text-align: center; }
.embed-fallback svg { width: 46px; height: 46px; color: var(--teal-500); margin: 0 auto 16px; }

.field { margin-bottom: 18px; }
.field label { display: block; font-size: .9rem; font-weight: 650; color: var(--navy-800); margin-bottom: 7px; }
.field input, .field textarea, .field select {
  width: 100%; padding: 13px 15px; font: inherit; font-size: .97rem; color: var(--ink);
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm);
  transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: 0; border-color: var(--teal-500); box-shadow: 0 0 0 4px var(--teal-100);
}
.field textarea { min-height: 140px; resize: vertical; }
.field small { display: block; margin-top: 6px; color: var(--ink-mute); font-size: .82rem; }

/* ---------- 18. CTA şeridi ---------- */
.cta-band {
  background:
    radial-gradient(700px 300px at 80% 0%, rgba(23, 162, 162, .35), transparent 60%),
    linear-gradient(120deg, var(--navy-800), var(--navy-900));
  color: #fff; border-radius: var(--radius-lg); padding: clamp(34px, 5vw, 58px);
  display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: center;
  box-shadow: var(--shadow-lg);
}
.cta-band h2 { color: #fff; margin-bottom: .4em; }
.cta-band p { color: rgba(255, 255, 255, .82); margin: 0; max-width: 62ch; }
@media (max-width: 860px) { .cta-band { grid-template-columns: 1fr; } }

/* ---------- 19. İletişim kartları ---------- */
.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line-soft); }
.contact-list li:last-child { border-bottom: 0; }
.contact-list .ico {
  width: 42px; height: 42px; flex: 0 0 auto; border-radius: 11px;
  background: var(--teal-100); color: var(--teal-600); display: grid; place-items: center;
}
.contact-list .ico svg { width: 20px; height: 20px; }
.contact-list b { display: block; font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-mute); font-weight: 700; }
.contact-list span { font-size: 1rem; color: var(--navy-800); font-weight: 550; word-break: break-word; }

/* ---------- 20. Sayfa başlığı (alt sayfalar) ---------- */
.page-hero {
  position: relative; overflow: hidden; color: #fff;
  background:
    radial-gradient(800px 340px at 88% -20%, rgba(23, 162, 162, .3), transparent 62%),
    linear-gradient(150deg, var(--navy-800), var(--navy-900));
  padding: clamp(46px, 6vw, 78px) 0 clamp(42px, 5vw, 66px);
}
.page-hero h1 { color: #fff; margin-bottom: 14px; }
.page-hero p { color: rgba(255, 255, 255, .82); max-width: 72ch; font-size: 1.05rem; margin: 0; }
.crumbs { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 0 0 18px; font-size: .84rem; }
.crumbs li { color: rgba(255, 255, 255, .58); }
.crumbs li + li::before { content: "/"; margin-right: 8px; opacity: .55; }
.crumbs a { color: var(--teal-400); }
.crumbs a:hover { color: #fff; }

/* ---------- 21. Footer ---------- */
.site-footer { background: var(--navy-900); color: rgba(255, 255, 255, .7); padding: clamp(46px, 6vw, 70px) 0 0; font-size: .94rem; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 36px; padding-bottom: 42px; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h4 { color: #fff; font-size: .82rem; letter-spacing: .13em; text-transform: uppercase; margin-bottom: 18px; font-weight: 700; }
.site-footer p { color: rgba(255, 255, 255, .62); font-size: .92rem; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 11px; }
.site-footer a { color: rgba(255, 255, 255, .72); }
.site-footer a:hover { color: var(--teal-400); }
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.footer-brand .brand__mark { background: rgba(255, 255, 255, .1); }
.footer-brand .brand__title { color: #fff; white-space: normal; }
.footer-brand .brand__sub { color: var(--teal-400); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1); padding: 20px 0;
  display: flex; flex-wrap: wrap; gap: 10px 24px; justify-content: space-between;
  font-size: .85rem; color: rgba(255, 255, 255, .5);
}
.tubitak-badge {
  display: inline-flex; align-items: center; gap: 10px;
  background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 10px; padding: 12px 16px; font-size: .86rem; color: rgba(255, 255, 255, .8);
}
.tubitak-badge b { color: #fff; }

/* ---------- 22. Yardımcılar ---------- */
.mt-0 { margin-top: 0; } .mt-1 { margin-top: 12px; } .mt-2 { margin-top: 24px; } .mt-3 { margin-top: 40px; }
.mb-0 { margin-bottom: 0; } .mb-2 { margin-bottom: 24px; } .mb-3 { margin-bottom: 40px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 200;
  background: var(--teal-500); color: #fff; padding: 10px 18px; border-radius: 0 0 8px 8px;
  transition: top .2s;
}
.skip-link:focus { top: 0; color: #fff; }
.badge {
  display: inline-block; padding: 4px 11px; border-radius: 999px;
  background: var(--teal-100); color: var(--teal-600);
  font-size: .76rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
}
.badge--amber { background: var(--amber-soft); color: #8A6415; }

/* Görünürlük animasyonu */
.reveal { opacity: 0; transform: translateY(18px); }
.reveal.is-in { opacity: 1; transform: none; transition: opacity .6s var(--ease), transform .6s var(--ease); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal, .reveal.is-in { opacity: 1; transform: none; transition: none; }
  * { animation-duration: .001s !important; transition-duration: .001s !important; }
}

/* Yukarı çık butonu */
.to-top {
  position: fixed; right: 20px; bottom: 20px; z-index: 50;
  width: 46px; height: 46px; border-radius: 50%; border: 0; cursor: pointer;
  background: var(--navy-800); color: #fff; display: grid; place-items: center;
  box-shadow: var(--shadow-md); opacity: 0; pointer-events: none;
  transition: opacity .25s, transform .25s var(--ease);
}
.to-top.is-vis { opacity: 1; pointer-events: auto; }
.to-top:hover { background: var(--teal-500); transform: translateY(-3px); }
.to-top svg { width: 20px; height: 20px; }

/* ---------- 23. Yazdırma ---------- */
@media print {
  .site-header, .topbar, .site-footer, .to-top, .btn, .daytabs, .nav-toggle { display: none !important; }
  body { font-size: 11pt; color: #000; }
  .hero, .page-hero { background: none !important; color: #000; padding: 0 0 18pt; }
  .hero h1, .page-hero h1 { color: #000; }
  .daypanel { display: block !important; page-break-inside: avoid; margin-bottom: 18pt; }
  .lesson__body { grid-template-rows: 1fr !important; }
  .card, .person, .lessons { box-shadow: none; border-color: #999; }
  a { color: #000; text-decoration: none; }
}