/* ====================================================================
   TEKSAM — Düşünce & Araştırma Derneği (v2 · editöryel)
   Kağıt/mürekkep estetiği. Fotoğraf öncelikli, gazete/dergi düzeni.
   Lacivert + krem + altın. Mobil üst seviye.
   ==================================================================== */

:root {
  --ink: #1a2942;
  --ink-2: #2d3a52;
  --ink-soft: #4a5775;
  --paper: #f6f2e9;
  --paper-2: #efe9db;
  --paper-3: #e6dfd0;
  --white: #fffdf9;
  --card: #fffdf9;
  --gold: #a8852e;
  --gold-light: #c4a24f;
  --gold-soft: #d4b878;
  --muted: #6b7488;
  --line: #ddd5c3;
  --line-2: #c9bfa8;
  --shadow-sm: 0 2px 10px -4px rgba(26,41,66,0.1);
  --shadow: 0 16px 40px -18px rgba(26,41,66,0.2);
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "Inter", system-ui, -apple-system, sans-serif;
  --container: 1240px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; -webkit-tap-highlight-color: transparent; }
body { font-family: var(--sans); background: var(--paper); color: var(--ink); font-size: 16.5px; line-height: 1.75; font-weight: 400; overflow-x: hidden; letter-spacing: 0.003em; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; transition: color .25s var(--ease); }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; }
input, select, textarea { font-family: inherit; font-size: 16px; }
::selection { background: var(--ink); color: var(--paper); }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding-left: 36px; padding-right: 36px; }
.scroll-progress { position: fixed; top: 0; left: 0; height: 2px; width: 0; background: var(--gold); z-index: 1000; transition: width .1s linear; }

em { font-style: italic; color: var(--gold); font-family: var(--serif); font-weight: 500; }
.section { padding: clamp(64px, 9vw, 104px) 0; position: relative; }
.section--alt { background: var(--paper-2); }
.section__eyebrow { display: inline-block; font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--gold); font-weight: 600; margin-bottom: 14px; }
.section__title { font-family: var(--serif); font-weight: 500; font-size: clamp(1.85rem, 4vw, 3rem); line-height: 1.14; color: var(--ink); letter-spacing: -0.018em; font-variation-settings: "opsz" 144; }
.section__head { max-width: 720px; margin-bottom: 52px; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-weight: 600; font-size: 0.88rem; letter-spacing: 0.04em; padding: 14px 28px; border-radius: 1px; cursor: pointer; transition: all .3s var(--ease); font-family: var(--sans); }
.btn--navy { background: var(--ink); color: var(--white); }
.btn--navy:hover { background: var(--ink-2); transform: translateY(-2px); color: var(--white); }
.btn--gold { background: var(--gold); color: var(--white); }
.btn--gold:hover { background: var(--ink); transform: translateY(-2px); color: var(--white); }
.btn--outline { background: transparent; color: var(--ink); border: 1px solid var(--ink); }
.btn--outline:hover { background: var(--ink); color: var(--white); }
.btn--sm { padding: 10px 20px; font-size: 0.8rem; }
.btn--block { width: 100%; }

/* ============ TOPBAR ============ */
.topbar { background: var(--ink); color: var(--paper-3); font-size: 0.82rem; }
.topbar__inner { display: flex; justify-content: space-between; align-items: center; height: 40px; }
.topbar__date { font-style: italic; font-family: var(--serif); color: var(--gold-soft); }
.topbar__right { display: flex; align-items: center; gap: 12px; }
.topbar__link { color: var(--paper-3); }
.topbar__link:hover { color: var(--gold-light); }
.topbar__sep { opacity: 0.3; }
.topbar__social { display: flex; gap: 12px; margin-left: 4px; }
.topbar__social a { color: var(--paper-3); display: inline-flex; }
.topbar__social a:hover { color: var(--gold-light); }

/* ============ HEADER ============ */
.header { position: sticky; top: 0; z-index: 900; background: rgba(246,242,233,0.96); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); transition: all .3s var(--ease); }
.header.scrolled { background: rgba(246,242,233,0.99); box-shadow: var(--shadow-sm); }
.header__inner { display: flex; align-items: center; justify-content: space-between; height: 80px; transition: height .3s; }
.header.scrolled .header__inner { height: 68px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand__mark { display: inline-flex; transition: transform .3s; }
.brand:hover .brand__mark { transform: rotate(-4deg); }
.brand__text { display: flex; flex-direction: column; line-height: 1; }
.brand__name { font-family: var(--serif); font-size: 1.5rem; font-weight: 600; color: var(--ink); letter-spacing: 0.04em; }
.brand__sub { font-size: 0.6rem; letter-spacing: 0.14em; color: var(--gold); text-transform: uppercase; margin-top: 5px; font-weight: 500; }
.brand__name--light { color: var(--paper); }
.nav { display: flex; align-items: center; gap: 2px; }
.nav__link { position: relative; padding: 9px 13px; font-size: 0.84rem; font-weight: 500; letter-spacing: 0.02em; color: var(--ink-2); }
.nav__link::after { content: ""; position: absolute; bottom: 2px; left: 13px; right: 13px; height: 1.5px; background: var(--gold); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease); }
.nav__link:hover { color: var(--gold); }
.nav__link:hover::after { transform: scaleX(1); }
.header__actions { display: flex; align-items: center; gap: 12px; }
.header__toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.header__toggle span { width: 22px; height: 1.5px; background: var(--ink); transition: all .3s; }

/* ============ MOBILE MENU ============ */
.mobile-menu { position: fixed; top: 0; right: 0; width: min(320px, 86vw); height: 100vh; height: 100dvh; background: var(--paper); z-index: 1100; padding: 24px; transform: translateX(100%); transition: transform .4s var(--ease); display: flex; flex-direction: column; border-left: 1px solid var(--line); box-shadow: var(--shadow); }
.mobile-menu.open { transform: translateX(0); }
.mobile-menu__head { display: flex; justify-content: space-between; align-items: center; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.mobile-menu__head button { font-size: 1.3rem; color: var(--gold); width: 40px; height: 40px; }
.mobile-menu__nav { display: flex; flex-direction: column; padding: 18px 0; flex: 1; }
.mobile-menu__nav a { font-family: var(--serif); font-size: 1.25rem; color: var(--ink); padding: 12px 0; border-bottom: 1px solid var(--line); }
.mobile-menu__nav a:hover { color: var(--gold); }
.mobile-menu__cta { margin-top: auto; }
.overlay { position: fixed; inset: 0; background: rgba(26,41,66,0.4); z-index: 1050; opacity: 0; visibility: hidden; transition: all .3s; }
.overlay.show { opacity: 1; visibility: visible; }

/* ============ HERO (editöryel split + ticker) ============ */
.hero { position: relative; background: var(--paper); border-bottom: 1px solid var(--line); }
.hero__inner { display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: center; padding: clamp(48px, 7vw, 88px) 0 clamp(40px,5vw,64px); }
.hero__eyebrow { display: inline-block; font-family: var(--serif); font-style: italic; font-size: 0.98rem; color: var(--gold); margin-bottom: 20px; }
.hero__title { font-family: var(--serif); font-weight: 500; font-size: clamp(2.2rem, 5vw, 4rem); line-height: 1.08; color: var(--ink); letter-spacing: -0.022em; margin-bottom: 26px; font-variation-settings: "opsz" 144; }
.hero__desc { font-size: 1.1rem; color: var(--ink-soft); max-width: 500px; margin-bottom: 32px; font-weight: 300; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero__feature { background: var(--white); border: 1px solid var(--line); border-radius: 2px; overflow: hidden; transition: all .35s var(--ease); display: block; }
.hero__feature:hover { border-color: var(--gold); box-shadow: var(--shadow); }
.hero__feature-img { aspect-ratio: 16/10; overflow: hidden; }
.hero__feature-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.hero__feature:hover .hero__feature-img img { transform: scale(1.04); }
.hero__feature-body { padding: 24px 26px 28px; }
.hero__feature-tag { display: inline-block; font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--gold); font-weight: 600; margin-bottom: 10px; }
.hero__feature-body h2 { font-family: var(--serif); font-size: 1.5rem; line-height: 1.25; color: var(--ink); font-weight: 500; margin-bottom: 10px; }
.hero__feature-body p { color: var(--ink-soft); font-size: 0.94rem; margin-bottom: 14px; font-weight: 300; }
.hero__feature-link { font-size: 0.86rem; font-weight: 600; color: var(--ink); border-bottom: 1px solid var(--gold); padding-bottom: 2px; }
.hero__feature:hover .hero__feature-link { color: var(--gold); }

/* Ticker */
.ticker { background: var(--ink); color: var(--paper); border-top: 1px solid rgba(255,255,255,0.08); }
.ticker__inner { display: flex; align-items: center; gap: 20px; height: 46px; overflow: hidden; }
.ticker__label { font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--gold-light); font-weight: 600; flex-shrink: 0; }
.ticker__track { display: flex; align-items: center; gap: 16px; font-size: 0.86rem; color: var(--paper-3); white-space: nowrap; overflow: hidden; }
.ticker__dot { width: 4px; height: 4px; border-radius: 50%; background: var(--gold); flex-shrink: 0; }

/* ============ ABOUT (fotoğraf + metin) ============ */
.about { background: var(--paper); }
.about__grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 64px; align-items: center; }
.about__media { position: relative; }
.about__media img { width: 100%; aspect-ratio: 4/5; object-fit: cover; border-radius: 2px; }
.about__caption { margin-top: 14px; font-size: 0.84rem; color: var(--muted); font-style: italic; font-family: var(--serif); }
.about__caption span { color: var(--gold); font-weight: 500; }
.about__text .about__lead { font-family: var(--serif); font-size: clamp(1.2rem, 2.4vw, 1.5rem); line-height: 1.4; color: var(--ink); font-weight: 500; margin: 16px 0 20px; font-style: italic; }
.about__text p { color: var(--ink-soft); margin-bottom: 16px; }
.about__sign { display: flex; align-items: center; gap: 14px; margin-top: 24px; }
.about__sign-line { width: 46px; height: 1px; background: var(--gold); }
.about__sign span { font-family: var(--serif); font-style: italic; color: var(--gold); font-size: 0.96rem; }

/* ============ NUMBERS ============ */
.numbers { background: var(--ink); color: var(--paper); border-top: 1px solid rgba(255,255,255,0.06); border-bottom: 1px solid rgba(255,255,255,0.06); }
.numbers__inner { display: grid; grid-template-columns: repeat(4, 1fr); }
.num { padding: clamp(28px, 4vw, 44px) 20px; text-align: center; border-right: 1px solid rgba(255,255,255,0.08); }
.num:last-child { border-right: none; }
.num__big { display: block; font-family: var(--serif); font-size: clamp(2.2rem, 4.5vw, 3.4rem); font-weight: 600; color: var(--paper); line-height: 1; }
.num__big small { font-size: 0.6em; color: var(--gold-light); }
.num__label { display: block; font-size: 0.78rem; letter-spacing: 0.06em; color: var(--gold-soft); margin-top: 10px; }

/* ============ FIELDS (2x2 compact editorial grid) ============ */
.fields { background: var(--paper-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.fields__list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.field { display: grid; grid-template-columns: 0.85fr 1fr; gap: 0; background: var(--white); border: 1px solid var(--line); border-radius: 2px; overflow: hidden; transition: all .35s var(--ease); }
.field:hover { border-color: var(--gold); box-shadow: var(--shadow); transform: translateY(-3px); }
.field__img { overflow: hidden; }
.field__img img { width: 100%; height: 100%; min-height: 220px; object-fit: cover; transition: transform .7s var(--ease); }
.field:hover .field__img img { transform: scale(1.05); }
.field__body { padding: 30px 32px; display: flex; flex-direction: column; justify-content: center; }
.field__index { display: inline-block; font-family: var(--serif); font-size: 0.88rem; color: var(--gold); letter-spacing: 0.1em; margin-bottom: 10px; }
.field__body h3 { font-family: var(--serif); font-size: clamp(1.25rem, 1.8vw, 1.5rem); color: var(--ink); font-weight: 500; margin-bottom: 12px; line-height: 1.22; }
.field__body p { color: var(--ink-soft); font-size: 0.94rem; margin-bottom: 16px; }
.field__tags { display: flex; gap: 7px; flex-wrap: wrap; }
.field__tags li { font-size: 0.72rem; letter-spacing: 0.04em; padding: 4px 11px; border: 1px solid var(--line-2); border-radius: 20px; color: var(--ink-soft); background: var(--paper); }

/* ============ GÜNDEM ============ */
.gundem { background: var(--paper); }
.gundem__head { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; margin-bottom: 40px; flex-wrap: wrap; }
.gundem__tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); }
.gtab { padding: 11px 18px; font-size: 0.86rem; font-weight: 500; color: var(--muted); position: relative; transition: color .25s; white-space: nowrap; }
.gtab::after { content: ""; position: absolute; bottom: -1px; left: 0; right: 0; height: 2px; background: var(--gold); transform: scaleX(0); transition: transform .3s var(--ease); }
.gtab:hover { color: var(--ink); }
.gtab.is-active { color: var(--ink); }
.gtab.is-active::after { transform: scaleX(1); }
.gpane { display: none; }
.gpane.is-active { display: block; }
.ggrid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 24px; }
.ggrid--2 { grid-template-columns: repeat(2, 1fr); }
.gcard { background: var(--white); border: 1px solid var(--line); border-radius: 2px; overflow: hidden; transition: all .3s var(--ease); display: flex; flex-direction: column; }
.gcard:hover { border-color: var(--gold); box-shadow: var(--shadow-sm); transform: translateY(-3px); }
.gcard--lg { grid-row: span 1; }
.gcard__img { aspect-ratio: 16/10; overflow: hidden; }
.gcard__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
.gcard:hover .gcard__img img { transform: scale(1.05); }
.gcard__body { padding: 22px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.gcard__body--plain { padding: 26px 26px 28px; }
.gcard__top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; gap: 12px; }
.gcard__cat { font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold); font-weight: 600; }
.gcard__date { font-size: 0.78rem; color: var(--muted); font-family: var(--serif); font-style: italic; }
.gcard__body h3 { font-family: var(--serif); font-size: 1.25rem; color: var(--ink); font-weight: 500; margin-bottom: 10px; line-height: 1.28; }
.gcard--lg .gcard__body h3 { font-size: 1.5rem; }
.gcard__body p { color: var(--ink-soft); font-size: 0.92rem; margin-bottom: 14px; flex: 1; }
.gcard__link { font-size: 0.84rem; font-weight: 600; color: var(--ink); border-bottom: 1px solid var(--gold); padding-bottom: 2px; align-self: flex-start; }
.gcard__link:hover { color: var(--gold); }

/* ============ PUBS ============ */
.pubs { background: var(--paper-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.pubs__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.pub { background: var(--white); border: 1px solid var(--line); border-radius: 2px; overflow: hidden; transition: all .35s var(--ease); }
.pub:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: var(--gold); }
.pub__cover { position: relative; aspect-ratio: 4/5; overflow: hidden; }
.pub__cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); filter: brightness(0.78); }
.pub:hover .pub__cover img { transform: scale(1.05); filter: brightness(0.88); }
.pub__type { position: absolute; bottom: 18px; left: 18px; right: 18px; font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--paper); font-weight: 600; z-index: 2; }
.pub__body { padding: 22px 24px 26px; }
.pub__cat { font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold); font-weight: 600; }
.pub__body h3 { font-family: var(--serif); font-size: 1.28rem; color: var(--ink); font-weight: 500; margin: 8px 0 14px; line-height: 1.28; }
.pub__link { font-size: 0.84rem; font-weight: 600; color: var(--ink); border-bottom: 1px solid var(--gold); padding-bottom: 2px; }
.pub__link:hover { color: var(--gold); }
.pubs__more { text-align: center; margin-top: 42px; }

/* ============ BOARD ============ */
.board { background: var(--paper); }
.board__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.member { text-align: left; }
.member__photo { aspect-ratio: 1; overflow: hidden; border-radius: 2px; margin-bottom: 16px; background: var(--line); }
.member__photo img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(0.4) contrast(1.02); transition: filter .5s var(--ease); }
.member:hover .member__photo img { filter: grayscale(0) contrast(1); }
.member__role { display: block; font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gold); font-weight: 600; margin-bottom: 6px; }
.member figcaption strong { font-family: var(--serif); font-size: 1.15rem; color: var(--ink); font-weight: 500; display: block; line-height: 1.3; }

/* ============ MEMBERSHIP ============ */
.membership { background: var(--ink); color: var(--paper); position: relative; overflow: hidden; }
.membership__inner { display: grid; grid-template-columns: 1fr 1.1fr; gap: 60px; align-items: center; }
.membership__media { position: relative; }
.membership__media img { width: 100%; aspect-ratio: 4/5; object-fit: cover; border-radius: 2px; filter: brightness(0.85); }
.membership__media-cap { position: absolute; bottom: 16px; left: 16px; right: 16px; font-size: 0.78rem; color: var(--paper); font-family: var(--serif); font-style: italic; background: rgba(26,41,66,0.7); padding: 8px 14px; border-left: 2px solid var(--gold); }
.membership__content .section__title { color: var(--paper); }
.membership__content > p { color: var(--paper-3); margin: 18px 0 26px; font-weight: 300; }
.membership__form { background: var(--paper); color: var(--ink); padding: clamp(24px, 4vw, 36px); border-radius: 2px; }

/* ============ FORM ============ */
.field { margin-bottom: 16px; display: flex; flex-direction: column; }
.field label { font-size: 0.76rem; letter-spacing: 0.06em; color: var(--gold); margin-bottom: 7px; font-weight: 600; }
.field input, .field select, .field textarea { background: var(--white); border: 1px solid var(--line); border-radius: 1px; padding: 12px 14px; color: var(--ink); font-size: 0.95rem; transition: all .2s; width: 100%; }
.field input::placeholder, .field textarea::placeholder { color: var(--muted); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--gold); box-shadow: 0 0 0 2px rgba(168,133,46,0.12); }
.field select { appearance: none; -webkit-appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23a8852e' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; }
.field textarea { resize: vertical; min-height: 100px; font-family: inherit; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-note { margin-top: 14px; padding: 12px; background: rgba(168,133,46,0.1); border: 1px solid var(--gold-soft); color: var(--gold); font-size: 0.9rem; text-align: center; }
.form-legal { margin-top: 12px; font-size: 0.76rem; color: var(--muted); text-align: center; }
.form-legal a { color: var(--gold); }

/* ============ CONTACT ============ */
.contact { background: var(--paper-2); border-top: 1px solid var(--line); }
.contact__grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 50px; align-items: start; }
.contact__list { display: grid; gap: 18px; margin-top: 8px; }
.contact__list li { padding-left: 16px; border-left: 2px solid var(--gold); }
.contact__list strong { display: block; font-family: var(--serif); color: var(--gold); font-size: 0.82rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 4px; }
.contact__list a { color: var(--ink); }
.contact__list a:hover { color: var(--gold); }
.contact__form { background: var(--white); border: 1px solid var(--line); padding: clamp(24px, 4vw, 34px); border-radius: 2px; box-shadow: var(--shadow-sm); }

/* ============ FOOTER ============ */
.footer { background: var(--ink); color: var(--paper-3); }
.footer__top { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 40px; padding: 60px 0 40px; }
.footer__col--brand p { margin: 14px 0 18px; font-size: 0.9rem; color: #8a93a8; max-width: 320px; line-height: 1.6; }
.footer__social { display: flex; gap: 10px; }
.footer__social a { width: 36px; height: 36px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.15); display: inline-flex; align-items: center; justify-content: center; color: var(--paper-3); transition: all .25s; }
.footer__social a:hover { background: var(--gold); color: var(--ink); border-color: var(--gold); }
.footer__col h5 { font-family: var(--serif); font-size: 1.05rem; color: var(--paper); font-weight: 500; margin-bottom: 16px; }
.footer__col ul li { margin-bottom: 9px; }
.footer__col ul li a { font-size: 0.9rem; color: #8a93a8; }
.footer__col ul li a:hover { color: var(--gold-light); }
.footer__contact li { font-size: 0.9rem; color: #8a93a8; line-height: 1.7; }
.footer__contact a { color: #8a93a8; }
.footer__contact a:hover { color: var(--gold-light); }
.footer .btn--outline { color: var(--gold-light); border-color: var(--gold); margin-top: 12px; }
.footer .btn--outline:hover { background: var(--gold); color: var(--ink); }
.footer__bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; }
.footer__bottom-inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; font-size: 0.8rem; color: #6b7488; }
.footer__legal a { color: #6b7488; margin: 0 2px; }
.footer__legal a:hover { color: var(--gold-light); }

/* ============ TO TOP ============ */
.to-top { position: fixed; bottom: 24px; right: 24px; width: 44px; height: 44px; border-radius: 50%; background: var(--ink); color: var(--paper); display: flex; align-items: center; justify-content: center; z-index: 800; opacity: 0; visibility: hidden; transform: translateY(16px); transition: all .3s var(--ease); box-shadow: var(--shadow); }
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--gold); }

/* ============ REVEAL ============ */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ====================================================================
   RESPONSIVE — mobile-first üst seviye
   ==================================================================== */
@media (max-width: 1080px) {
  .nav { display: none; }
  .header__toggle { display: flex; }
  .hero__inner { grid-template-columns: 1fr; gap: 44px; }
  .about__grid { grid-template-columns: 1fr; gap: 36px; }
  .about__media img { aspect-ratio: 16/10; max-height: 420px; }
  .numbers__inner { grid-template-columns: repeat(2, 1fr); }
  .num:nth-child(2) { border-right: none; }
  .num:nth-child(1), .num:nth-child(2) { border-bottom: 1px solid rgba(255,255,255,0.08); }
  .field { grid-template-columns: 1fr; }
  .field__img img { min-height: 200px; max-height: 240px; }
  .ggrid { grid-template-columns: 1fr 1fr; }
  .gcard--lg { grid-column: span 2; }
  .pubs__grid { grid-template-columns: repeat(2, 1fr); }
  .pubs__grid .pub:last-child { grid-column: span 2; max-width: 50%; margin: 0 auto; }
  .board__grid { grid-template-columns: repeat(2, 1fr); }
  .membership__inner { grid-template-columns: 1fr; gap: 36px; }
  .membership__media img { aspect-ratio: 16/10; max-height: 380px; }
  .contact__grid { grid-template-columns: 1fr; gap: 36px; }
  .footer__top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .container { padding-left: 22px; padding-right: 22px; }
  .topbar { display: none; }
  .hero__inner { gap: 36px; padding: 44px 0 48px; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .btn { width: 100%; }
  .hero__feature-body { padding: 20px; }
  .hero__feature-body h2 { font-size: 1.3rem; }
  .ticker__inner { height: auto; flex-direction: column; align-items: flex-start; gap: 6px; padding: 10px 0; }
  .ticker__track { flex-wrap: wrap; white-space: normal; gap: 8px 12px; line-height: 1.5; }
  .section__head { margin-bottom: 36px; }
  .gundem__head { flex-direction: column; align-items: flex-start; gap: 18px; }
  .gundem__tabs { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .fields__list { grid-template-columns: 1fr; }
  .ggrid { grid-template-columns: 1fr; }
  .gcard--lg { grid-column: span 1; }
  .pubs__grid { grid-template-columns: 1fr; }
  .pubs__grid .pub:last-child { grid-column: span 1; max-width: none; }
  .board__grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .footer__top { grid-template-columns: 1fr; gap: 28px; padding: 44px 0 30px; }
  .footer__bottom-inner { flex-direction: column; text-align: center; }
  .to-top { bottom: 18px; right: 18px; }
}

@media (max-width: 420px) {
  .brand__sub { display: none; }
  .brand__name { font-size: 1.35rem; }
  .board__grid { grid-template-columns: 1fr; }
  .numbers__inner { grid-template-columns: 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}