/* ==========================================================================
   Oğuzhan Tuvanç — Elektronik Donanım & Ar-Ge
   Açık tema · tek dosya · derleme yok
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Token'lar
   -------------------------------------------------------------------------- */
:root {
  --paper:      #fafaf9;
  --paper-2:    #f2f2f0;
  --card:       #ffffff;

  --ink:        #15171a;
  --ink-2:      #5a6067;
  --ink-3:      #8b9197;

  --line:       #e5e5e2;
  --line-2:     #d6d6d2;

  --accent:     #14665a;
  --accent-2:   #0f4e45;
  --accent-3:   #2a8a7b;
  --accent-soft:#e9f2f0;

  --font-display: 'Schibsted Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-sans:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --step--1: clamp(0.82rem, 0.8rem + 0.12vw, 0.88rem);
  --step-0:  clamp(0.97rem, 0.95rem + 0.14vw, 1.04rem);
  --step-1:  clamp(1.1rem, 1.04rem + 0.3vw, 1.26rem);
  --step-2:  clamp(1.35rem, 1.22rem + 0.62vw, 1.75rem);
  --step-3:  clamp(1.7rem, 1.45rem + 1.2vw, 2.5rem);
  --step-4:  clamp(2.2rem, 1.72rem + 2.4vw, 3.6rem);

  --container: 1120px;
  --gutter: clamp(1.15rem, 4vw, 2.25rem);
  --section-y: clamp(3.5rem, 7.5vw, 6.5rem);

  --r-sm: 8px;
  --r:    12px;
  --r-lg: 16px;

  --shadow-sm: 0 1px 2px rgba(21, 23, 26, 0.04);
  --shadow:    0 1px 2px rgba(21, 23, 26, 0.04), 0 6px 18px -8px rgba(21, 23, 26, 0.10);
  --shadow-lg: 0 2px 6px rgba(21, 23, 26, 0.05), 0 18px 40px -18px rgba(21, 23, 26, 0.16);

  color-scheme: light;
}

/* --------------------------------------------------------------------------
   2. Temel
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--step-0);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4 {
  margin: 0 0 0.5em;
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.022em;
  color: var(--ink);
  text-wrap: balance;
}

h1 { font-size: var(--step-4); letter-spacing: -0.032em; line-height: 1.06; }
h2 { font-size: var(--step-3); letter-spacing: -0.028em; }
h3 { font-size: var(--step-1); letter-spacing: -0.015em; }
h4 { font-size: var(--step-0); }

p { margin: 0 0 1.05em; }
p:last-child { margin-bottom: 0; }

a { color: var(--accent); text-decoration: none; transition: color 0.16s ease; }
a:hover { color: var(--accent-2); }

ul { margin: 0; padding: 0; list-style: none; }

::selection { background: rgba(20, 102, 90, 0.14); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: #fff;
  padding: 0.7rem 1.1rem; font-weight: 600; z-index: 200;
}
.skip-link:focus { left: 0; }

/* --------------------------------------------------------------------------
   3. Yerleşim
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-y); position: relative; }
.section--tight { padding-block: clamp(2.5rem, 5.5vw, 4rem); }
.section--alt { background: var(--paper-2); border-block: 1px solid var(--line); }

.stack > * + * { margin-top: 1.05rem; }

.grid { display: grid; gap: clamp(1rem, 2.2vw, 1.5rem); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 210px), 1fr)); }
.grid--2up { grid-template-columns: 1fr; }
@media (min-width: 860px) { .grid--2up { grid-template-columns: repeat(2, 1fr); } }

.lead { font-size: var(--step-1); color: var(--ink-2); line-height: 1.6; max-width: 58ch; }
.muted { color: var(--ink-2); }
.measure { max-width: 66ch; }
.center { text-align: center; }
.mx-auto { margin-inline: auto; }

/* --------------------------------------------------------------------------
   4. Bölüm başlıkları
   -------------------------------------------------------------------------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.75rem;
  font-weight: 500;
}

.section-head { margin-bottom: clamp(1.85rem, 3.5vw, 2.85rem); max-width: 66ch; }
.section-head.center { margin-inline: auto; }
.section-head p { color: var(--ink-2); margin-bottom: 0; }

.hl { color: var(--accent); }

/* --------------------------------------------------------------------------
   5. Navigasyon
   -------------------------------------------------------------------------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(250, 250, 249, 0.88);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--line);
}

.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: 68px;
}

.brand {
  display: inline-flex; align-items: center;
  font-family: var(--font-display);
  font-weight: 600; font-size: 1.12rem; color: var(--ink);
  letter-spacing: -0.028em; white-space: nowrap;
}
.brand:hover { color: var(--ink); }
.brand__mark { width: 28px; height: 28px; flex: none; }
.brand__sub {
  display: block; font-family: var(--font-mono); font-size: 0.56rem;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--ink-3); font-weight: 400; margin-top: 3px;
}

.nav__links { display: flex; align-items: center; gap: clamp(0.1rem, 1vw, 0.3rem); }

.nav__link {
  color: var(--ink-2); padding: 0.5rem 0.8rem; border-radius: var(--r-sm);
  font-size: 0.92rem; font-weight: 500; white-space: nowrap;
  transition: color 0.16s ease, background 0.16s ease;
}
.nav__link:hover { color: var(--ink); background: rgba(21, 23, 26, 0.045); }
.nav__link[aria-current='page'] { color: var(--ink); font-weight: 600; background: rgba(21, 23, 26, 0.055); }

.nav__right { display: flex; align-items: center; gap: 0.55rem; }

.lang {
  display: inline-flex; align-items: center;
  border: 1px solid var(--line-2); border-radius: var(--r-sm);
  overflow: hidden; font-family: var(--font-mono);
  font-size: 0.7rem; font-weight: 500; background: var(--card);
}
.lang a { padding: 0.38rem 0.6rem; color: var(--ink-3); letter-spacing: 0.05em; transition: all 0.16s ease; }
.lang a:hover { color: var(--ink); background: rgba(21, 23, 26, 0.05); }
.lang a[aria-current='true'] { background: var(--ink); color: #fff; }

.nav__toggle {
  display: none; background: var(--card); border: 1px solid var(--line-2);
  border-radius: var(--r-sm); width: 40px; height: 40px; padding: 0;
  cursor: pointer; color: var(--ink); align-items: center; justify-content: center;
}
.nav__toggle svg { width: 20px; height: 20px; }
.nav__toggle .icon-close { display: none; }
.nav__toggle[aria-expanded='true'] .icon-close { display: block; }
.nav__toggle[aria-expanded='true'] .icon-open { display: none; }

@media (max-width: 880px) {
  .nav__toggle { display: inline-flex; }
  .nav__links {
    position: fixed; inset: 68px 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 0.1rem;
    background: var(--paper); border-bottom: 1px solid var(--line);
    padding: 0.85rem var(--gutter) 1.35rem;
    transform: translateY(-8px); opacity: 0; pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    max-height: calc(100vh - 68px); overflow-y: auto; box-shadow: var(--shadow);
  }
  .nav__links.is-open { opacity: 1; transform: translateY(0); pointer-events: auto; }
  .nav__link { padding: 0.8rem 0.9rem; font-size: 1rem; }
}

/* --------------------------------------------------------------------------
   6. Butonlar
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.8rem 1.35rem; border-radius: var(--r-sm);
  font-weight: 600; font-size: 0.93rem; line-height: 1;
  border: 1px solid transparent; cursor: pointer; text-align: center;
  font-family: inherit;
  transition: background 0.16s ease, border-color 0.16s ease, color 0.16s ease, box-shadow 0.16s ease;
}
.btn svg { width: 16px; height: 16px; flex: none; }

.btn--primary { background: var(--ink); color: #fff; }
.btn--primary:hover { background: #000; color: #fff; }

.btn--ghost { border-color: var(--line-2); color: var(--ink); background: var(--card); }
.btn--ghost:hover { border-color: var(--ink-3); color: var(--ink); background: var(--card); }

.btn-row { display: flex; flex-wrap: wrap; gap: 0.7rem; }

/* --------------------------------------------------------------------------
   7. Hero
   -------------------------------------------------------------------------- */
.hero { padding-block: clamp(3rem, 8vw, 6rem) clamp(2rem, 4vw, 3rem); }

.hero__grid { display: grid; gap: clamp(2rem, 4vw, 3.5rem); grid-template-columns: 1fr; }
@media (min-width: 900px) { .hero__grid { grid-template-columns: 1.15fr 0.85fr; align-items: end; } }

.hero__title { margin-bottom: 1.05rem; max-width: 16ch; }
.hero .lead { margin-bottom: 1.9rem; }

.hero__status {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-mono); font-size: 0.7rem;
  letter-spacing: 0.09em; text-transform: uppercase;
  color: var(--accent-2); border: 1px solid rgba(20, 102, 90, 0.22);
  background: var(--accent-soft); padding: 0.4rem 0.8rem;
  border-radius: 999px; margin-bottom: 1.4rem; font-weight: 500;
}
.hero__status::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-3); flex: none;
}

/* Hero yan sütunu — künye listesi */
.facts { border-top: 1px solid var(--ink); padding-top: 0.35rem; }
.facts__row {
  display: grid; grid-template-columns: minmax(84px, 0.55fr) 1fr;
  gap: 1rem; padding: 0.8rem 0; border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.facts__key {
  font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--ink-3);
}
.facts__val { font-size: 0.92rem; color: var(--ink); line-height: 1.45; }

/* --------------------------------------------------------------------------
   8. Kartlar
   -------------------------------------------------------------------------- */
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--r); padding: clamp(1.3rem, 2.4vw, 1.75rem);
  height: 100%;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.card:hover { border-color: var(--line-2); box-shadow: var(--shadow); }
.card h3 { margin-bottom: 0.45rem; }
.card p { color: var(--ink-2); font-size: 0.94rem; margin-bottom: 0; }
.card--flat:hover { box-shadow: none; border-color: var(--line); }

.card__icon {
  width: 38px; height: 38px; border-radius: var(--r-sm);
  display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent);
  margin-bottom: 1rem;
}
.card__icon svg { width: 19px; height: 19px; }

.list-check { display: grid; gap: 0.55rem; margin-top: 0.45rem; }
.list-check li {
  display: flex; gap: 0.55rem; align-items: flex-start;
  color: var(--ink-2); font-size: 0.92rem; line-height: 1.5;
}
.list-check svg { width: 15px; height: 15px; color: var(--accent-3); flex: none; margin-top: 0.3em; }

/* --------------------------------------------------------------------------
   9. İstatistikler
   -------------------------------------------------------------------------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 160px), 1fr));
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--card);
  overflow: hidden;
}
.stat { padding: 1.35rem 1.35rem; border-right: 1px solid var(--line); }
.stat:last-child { border-right: 0; }
@media (max-width: 700px) {
  .stat { border-right: 0; border-bottom: 1px solid var(--line); }
  .stat:last-child { border-bottom: 0; }
}
.stat__value {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.2vw, 2.1rem);
  font-weight: 600; color: var(--ink);
  letter-spacing: -0.035em; line-height: 1;
  font-variant-numeric: tabular-nums;
}
.stat__label { font-size: 0.83rem; color: var(--ink-2); margin-top: 0.5rem; line-height: 1.4; }

/* --------------------------------------------------------------------------
   10. Teknik özellikler
   -------------------------------------------------------------------------- */
.spec {
  font-family: var(--font-mono); font-size: 0.76rem;
  display: grid; border: 1px solid var(--line);
  border-radius: var(--r-sm); overflow: hidden;
  margin-top: 1.05rem; background: var(--paper);
}
.spec__row {
  display: grid; grid-template-columns: minmax(90px, 0.8fr) 1.2fr;
  gap: 0.7rem; padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--line);
}
.spec__row:last-child { border-bottom: 0; }
.spec__key { color: var(--ink-3); font-size: 0.68rem; align-self: center; }
.spec__val { color: var(--ink); }

.tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 1rem; }
.tag {
  font-family: var(--font-mono); font-size: 0.66rem;
  color: var(--ink-2); border: 1px solid var(--line);
  background: var(--paper); padding: 0.22rem 0.5rem;
  border-radius: var(--r-sm); white-space: nowrap;
}

.badge {
  display: inline-flex; align-items: center; gap: 0.3rem;
  font-family: var(--font-mono); font-size: 0.62rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.24rem 0.55rem; border-radius: var(--r-sm);
  border: 1px solid; font-weight: 500;
}
.badge--proto { color: #8a6516; border-color: #e6d7b4; background: #fbf6ea; }
.badge--field { color: var(--accent-2); border-color: #bcd9d3; background: var(--accent-soft); }
.badge--year  { color: var(--ink-3); border-color: var(--line-2); background: var(--paper); }

/* --------------------------------------------------------------------------
   11. Proje kartı
   -------------------------------------------------------------------------- */
.project { display: flex; flex-direction: column; }
.project__head { margin-bottom: 0.4rem; }
.project__meta { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-bottom: 0.9rem; }
.project h3 { margin-bottom: 0; }

/* --------------------------------------------------------------------------
   12. Süreç adımları
   -------------------------------------------------------------------------- */
.steps { display: grid; gap: 0; border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; background: var(--card); }
@media (min-width: 620px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 940px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.step { padding: 1.4rem 1.35rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.step__num {
  font-family: var(--font-mono); font-size: 0.7rem;
  color: var(--accent); letter-spacing: 0.1em; margin-bottom: 0.6rem; font-weight: 500;
}
.step h3 { font-size: 1rem; margin-bottom: 0.28rem; }
.step p { font-size: 0.87rem; color: var(--ink-2); margin: 0; }

/* --------------------------------------------------------------------------
   13. Upwork katalog kartları
   -------------------------------------------------------------------------- */
.offer {
  display: flex; flex-direction: column;
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--r); padding: clamp(1.4rem, 2.6vw, 1.85rem);
  height: 100%;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.offer:hover { border-color: var(--line-2); box-shadow: var(--shadow); }

.offer__top {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap; margin-bottom: 0.75rem;
}
.offer__price {
  font-family: var(--font-display); font-size: 1.45rem; font-weight: 600;
  color: var(--ink); letter-spacing: -0.03em; line-height: 1;
  white-space: nowrap; font-variant-numeric: tabular-nums;
}
.offer__price small {
  font-family: var(--font-mono); font-size: 0.6rem; font-weight: 400;
  color: var(--ink-3); letter-spacing: 0.09em; text-transform: uppercase;
  display: block; margin-bottom: 0.28rem;
}
.offer h3 { font-size: var(--step-1); margin-bottom: 0.5rem; }
.offer > p { color: var(--ink-2); font-size: 0.92rem; }
.offer .list-check { margin-top: 0.95rem; }
.offer__foot {
  margin-top: auto; padding-top: 1.25rem;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap;
}
.offer__eta {
  font-family: var(--font-mono); font-size: 0.69rem; color: var(--ink-3);
  display: inline-flex; align-items: center; gap: 0.38rem;
}
.offer__eta svg { width: 13px; height: 13px; }

.offer__link {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-weight: 600; font-size: 0.88rem; color: var(--accent);
}
.offer__link:hover { color: var(--accent-2); }
.offer__link svg { width: 14px; height: 14px; }

/* --------------------------------------------------------------------------
   14. Zaman çizelgesi
   -------------------------------------------------------------------------- */
.timeline { display: grid; }
.timeline__item { position: relative; padding: 0 0 2rem 1.75rem; border-left: 1px solid var(--line-2); }
.timeline__item:last-child { padding-bottom: 0; border-left-color: transparent; }
.timeline__item::before {
  content: ''; position: absolute; left: -4.5px; top: 8px;
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent);
}
.timeline__date {
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.06em;
  color: var(--ink-3); margin-bottom: 0.3rem;
}
.timeline h3 { font-size: 1.06rem; margin-bottom: 0.15rem; }
.timeline__org { color: var(--accent); font-size: 0.9rem; margin-bottom: 0.55rem; font-weight: 500; }
.timeline p { color: var(--ink-2); font-size: 0.92rem; margin-bottom: 0; }

/* --------------------------------------------------------------------------
   15. İletişim / form
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid; gap: clamp(1.5rem, 3vw, 2.5rem);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  align-items: start;
}

.contact-item {
  display: flex; gap: 0.85rem; align-items: flex-start;
  padding: 0.9rem 0; border-bottom: 1px solid var(--line);
}
.contact-item:last-of-type { border-bottom: 0; }
.contact-item__icon {
  width: 36px; height: 36px; flex: none; border-radius: var(--r-sm);
  display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent);
}
.contact-item__icon svg { width: 17px; height: 17px; }
.contact-item__label {
  font-family: var(--font-mono); font-size: 0.63rem; letter-spacing: 0.13em;
  text-transform: uppercase; color: var(--ink-3); margin-bottom: 0.18rem;
}
.contact-item__value { color: var(--ink); font-size: 0.96rem; word-break: break-word; font-weight: 500; }
a.contact-item__value:hover { color: var(--accent); }

.form { display: grid; gap: 1rem; }
.field { display: grid; gap: 0.4rem; }
.field label {
  font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--ink-3);
}
.field .req { color: var(--accent-3); }

input, select, textarea {
  width: 100%; background: var(--card);
  border: 1px solid var(--line-2); border-radius: var(--r-sm);
  padding: 0.75rem 0.9rem; color: var(--ink);
  font-family: inherit; font-size: 0.95rem;
  transition: border-color 0.16s ease, box-shadow 0.16s ease;
}
input::placeholder, textarea::placeholder { color: var(--ink-3); }
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(20, 102, 90, 0.12);
}
textarea { resize: vertical; min-height: 130px; line-height: 1.6; }
select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235a6067' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 0.85rem center;
  background-size: 16px; padding-right: 2.4rem;
}

.form__note { font-size: 0.83rem; color: var(--ink-3); margin: 0; }

.form__status {
  padding: 0.85rem 1rem; border-radius: var(--r-sm); font-size: 0.89rem;
  display: none; border: 1px solid; line-height: 1.5;
}
.form__status.is-visible { display: block; }
.form__status--ok  { color: var(--accent-2); border-color: #bcd9d3; background: var(--accent-soft); }
.form__status--err { color: #96282a; border-color: #eec4c4; background: #fdf1f1; }

/* --------------------------------------------------------------------------
   16. CTA
   -------------------------------------------------------------------------- */
.cta {
  border: 1px solid var(--line); border-radius: var(--r-lg);
  background: var(--card);
  padding: clamp(2rem, 5vw, 3.25rem);
  text-align: center;
}
.cta h2 { margin-bottom: 0.65rem; }
.cta p { color: var(--ink-2); max-width: 52ch; margin-inline: auto; margin-bottom: 1.75rem; }
.cta .btn-row { justify-content: center; }

/* --------------------------------------------------------------------------
   17. Footer
   -------------------------------------------------------------------------- */
.footer {
  border-top: 1px solid var(--line);
  padding-block: clamp(2.5rem, 5vw, 3.5rem) 1.85rem;
  margin-top: var(--section-y);
}
.footer__grid {
  display: grid; gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
  margin-bottom: 2rem;
}
.footer h4 {
  font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.13em;
  text-transform: uppercase; color: var(--ink-3); margin-bottom: 0.85rem; font-weight: 500;
}
.footer__links { display: grid; gap: 0.5rem; }
.footer__links a { color: var(--ink-2); font-size: 0.91rem; }
.footer__links a:hover { color: var(--accent); }
.footer__bottom {
  border-top: 1px solid var(--line); padding-top: 1.35rem;
  display: flex; flex-wrap: wrap; gap: 0.8rem;
  justify-content: space-between; align-items: center;
  font-size: 0.83rem; color: var(--ink-3);
}
.footer__tagline { color: var(--ink-2); font-size: 0.91rem; max-width: 34ch; }

.social { display: flex; gap: 0.45rem; }
.social a {
  width: 36px; height: 36px; border: 1px solid var(--line-2);
  border-radius: var(--r-sm); display: grid; place-items: center;
  color: var(--ink-2); background: var(--card); transition: all 0.16s ease;
}
.social a:hover { color: #fff; background: var(--ink); border-color: var(--ink); }
.social svg { width: 16px; height: 16px; }

/* --------------------------------------------------------------------------
   18. Sayfa başlığı
   -------------------------------------------------------------------------- */
.page-head {
  padding-block: clamp(2.5rem, 5.5vw, 4rem) clamp(1.35rem, 3vw, 2.25rem);
  border-bottom: 1px solid var(--line);
}
.page-head h1 { margin-bottom: 0.6rem; }
.page-head p { color: var(--ink-2); max-width: 60ch; margin-bottom: 0; }

/* --------------------------------------------------------------------------
   19. Hareket
   -------------------------------------------------------------------------- */
.js .reveal {
  opacity: 0; transform: translateY(12px);
  transition: opacity 0.5s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}
.js .reveal.is-in { opacity: 1; transform: none; }

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

/* --------------------------------------------------------------------------
   20. Yazdırma
   -------------------------------------------------------------------------- */
@media print {
  .nav, .footer, .cta { display: none !important; }
  body { background: #fff; }
  .card, .spec, .stats, .steps { border-color: #ccc; box-shadow: none; }
  .section--alt { background: #fff; }
}