/* =========================================================================
   MT AI SYSTEMS — "Orchestrated Intelligence"
   Tasarım sistemi: derin gece-mavisi zemin + altın sinyal vurgu.
   Tipografi: Fraunces (serif display) × Geist (gövde) × Geist Mono (etiket).
   Hem light hem dark tam tasarlandı; tema OS tercihini + geçiş düğmesini izler.
   ========================================================================= */

/* ---- 1. TOKENS ---------------------------------------------------------- */
:root {
  /* Nötr zemin — mavi-gri hue bias'lı, "seçilmiş" nötr (saf gri değil) */
  --paper:        #F4F5F8;
  --paper-raised: #FFFFFF;
  --paper-sunk:   #ECEEF3;
  --line:         #E1E4EB;
  --line-strong:  #CDD2DC;

  --fg:           #0C1322;   /* birincil metin */
  --fg-dim:       #55607A;   /* ikincil */
  --fg-faint:     #8A93A8;   /* üçüncül / caption */

  /* Vurgu: light'ta derin bal-amber, dark'ta parlak altın (aşağıda override) */
  --accent:       #A66A0B;
  --accent-ink:   #7E4F06;   /* koyu metin üzeri */
  --accent-soft:  rgba(166,106,11,.10);
  --accent-line:  rgba(166,106,11,.28);
  --on-accent:    #1A1204;   /* altın buton üzeri metin */

  --signal:       #0E9E86;   /* "online / canlı" — semantik, vurgu DEĞİL */
  --signal-soft:  rgba(14,158,134,.12);

  /* Canvas (ajan ağı) renkleri — temaya göre */
  --net-node:     #A66A0B;
  --net-edge:     rgba(12,19,34,.14);
  --net-glow:     rgba(166,106,11,.9);
  --net-bg-a:     rgba(166,106,11,.05);
  --net-bg-b:     rgba(14,158,134,.04);

  /* Tipografi */
  --f-display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --f-body:    'Geist', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --f-mono:    'Geist Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* Ölçek (majör üçüncü ~1.25, hero'da daha büyük) */
  --step--1: clamp(.82rem, .8rem + .1vw, .9rem);
  --step-0:  clamp(1rem, .96rem + .2vw, 1.12rem);
  --step-1:  clamp(1.2rem, 1.1rem + .5vw, 1.5rem);
  --step-2:  clamp(1.5rem, 1.3rem + 1vw, 2.1rem);
  --step-3:  clamp(2rem, 1.6rem + 2vw, 3rem);
  --step-4:  clamp(2.5rem, 1.9rem + 3vw, 4rem);
  --step-5:  clamp(2.8rem, 2.1rem + 3vw, 4.5rem);

  --maxw: 1200px;
  --gutter: clamp(1.15rem, 4vw, 3rem);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 26px;
  --shadow: 0 1px 2px rgba(12,19,34,.05), 0 12px 34px -18px rgba(12,19,34,.22);
  --shadow-lift: 0 2px 6px rgba(12,19,34,.06), 0 30px 60px -28px rgba(12,19,34,.32);
  --ease: cubic-bezier(.22,.61,.36,1);
  --dur: .6s;
}

/* Dark tokens — OS tercihi */
@media (prefers-color-scheme: dark) {
  :root {
    --paper:        #080B12;
    --paper-raised: #0F1522;
    --paper-sunk:   #0B0F19;
    --line:         #1D2536;
    --line-strong:  #2A3448;

    --fg:           #EAEFF9;
    --fg-dim:       #9AA6C0;
    --fg-faint:     #667192;

    --accent:       #F4BB57;
    --accent-ink:   #FFD183;
    --accent-soft:  rgba(244,187,87,.10);
    --accent-line:  rgba(244,187,87,.26);
    --on-accent:    #1A1204;

    --signal:       #3BE3C0;
    --signal-soft:  rgba(59,227,192,.12);

    --net-node:     #F4BB57;
    --net-edge:     rgba(234,239,249,.10);
    --net-glow:     rgba(244,187,87,.95);
    --net-bg-a:     rgba(244,187,87,.06);
    --net-bg-b:     rgba(59,227,192,.05);

    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 18px 44px -20px rgba(0,0,0,.7);
    --shadow-lift: 0 2px 8px rgba(0,0,0,.5), 0 40px 80px -30px rgba(0,0,0,.8);
  }
}

/* Manuel geçiş düğmesi her iki yönde media query'yi ezer */
:root[data-theme="dark"] {
  --paper:#080B12; --paper-raised:#0F1522; --paper-sunk:#0B0F19;
  --line:#1D2536; --line-strong:#2A3448;
  --fg:#EAEFF9; --fg-dim:#9AA6C0; --fg-faint:#667192;
  --accent:#F4BB57; --accent-ink:#FFD183; --accent-soft:rgba(244,187,87,.10);
  --accent-line:rgba(244,187,87,.26); --on-accent:#1A1204;
  --signal:#3BE3C0; --signal-soft:rgba(59,227,192,.12);
  --net-node:#F4BB57; --net-edge:rgba(234,239,249,.10); --net-glow:rgba(244,187,87,.95);
  --net-bg-a:rgba(244,187,87,.06); --net-bg-b:rgba(59,227,192,.05);
  --shadow:0 1px 2px rgba(0,0,0,.4),0 18px 44px -20px rgba(0,0,0,.7);
  --shadow-lift:0 2px 8px rgba(0,0,0,.5),0 40px 80px -30px rgba(0,0,0,.8);
}
:root[data-theme="light"] {
  --paper:#F4F5F8; --paper-raised:#FFFFFF; --paper-sunk:#ECEEF3;
  --line:#E1E4EB; --line-strong:#CDD2DC;
  --fg:#0C1322; --fg-dim:#55607A; --fg-faint:#8A93A8;
  --accent:#A66A0B; --accent-ink:#7E4F06; --accent-soft:rgba(166,106,11,.10);
  --accent-line:rgba(166,106,11,.28); --on-accent:#1A1204;
  --signal:#0E9E86; --signal-soft:rgba(14,158,134,.12);
  --net-node:#A66A0B; --net-edge:rgba(12,19,34,.14); --net-glow:rgba(166,106,11,.9);
  --net-bg-a:rgba(166,106,11,.05); --net-bg-b:rgba(14,158,134,.04);
  --shadow:0 1px 2px rgba(12,19,34,.05),0 12px 34px -18px rgba(12,19,34,.22);
  --shadow-lift:0 2px 6px rgba(12,19,34,.06),0 30px 60px -28px rgba(12,19,34,.32);
}

/* ---- 2. BASE ------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--f-body);
  font-size: var(--step-0);
  line-height: 1.65;
  color: var(--fg);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01" 1, "cv01" 1;
  overflow-x: hidden;
  transition: background-color .5s var(--ease), color .5s var(--ease);
}

h1,h2,h3,h4 { font-family: var(--f-display); font-weight: 600; line-height: 1.04;
  letter-spacing: -.015em; text-wrap: balance; margin: 0;
  font-optical-sizing: auto; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
img, svg, canvas { display: block; max-width: 100%; }
::selection { background: var(--accent); color: var(--on-accent); }

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

/* ---- 3. LAYOUT ---------------------------------------------------------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto;
  padding-inline: var(--gutter); }
.section { padding-block: clamp(4.5rem, 9vw, 8rem); position: relative; }
.section--tight { padding-block: clamp(3rem, 6vw, 5rem); }

.eyebrow {
  font-family: var(--f-mono); font-size: var(--step--1); font-weight: 500;
  text-transform: uppercase; letter-spacing: .18em; color: var(--accent-ink);
  display: inline-flex; align-items: center; gap: .6rem;
}
.eyebrow::before {
  content: ""; width: 1.6rem; height: 1px; background: var(--accent-line);
}
.section-head { max-width: 46ch; margin-bottom: clamp(2.2rem, 5vw, 3.6rem); }
.section-head h2 { font-size: var(--step-3); margin-top: 1rem; }
.section-head p { color: var(--fg-dim); font-size: var(--step-1); margin-top: 1.1rem;
  max-width: 52ch; line-height: 1.5; }

/* ---- 4. HEADER ---------------------------------------------------------- */
.header {
  position: sticky; top: 0; z-index: 100;
  transition: background-color .4s var(--ease), border-color .4s var(--ease), backdrop-filter .4s;
  border-bottom: 1px solid transparent;
}
.header.is-stuck {
  background: color-mix(in srgb, var(--paper) 78%, transparent);
  backdrop-filter: saturate(1.6) blur(16px);
  -webkit-backdrop-filter: saturate(1.6) blur(16px);
  border-bottom-color: var(--line);
}
.header__inner { display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 1.5rem; }
.brand { display: inline-flex; align-items: center; gap: .7rem; font-family: var(--f-body);
  font-weight: 600; letter-spacing: -.01em; }
.brand__mark { width: auto; height: 34px; flex: none; object-fit: contain; }
.brand__name { font-size: 1.02rem; }
.brand__name b { font-weight: 600; }
.brand__name span { color: var(--fg-faint); font-weight: 500; }

.nav { display: flex; align-items: center; gap: .35rem; }
.nav a { padding: .5rem .8rem; border-radius: 8px; color: var(--fg-dim);
  font-size: .95rem; font-weight: 500; transition: color .2s, background-color .2s; }
.nav a:hover { color: var(--fg); background: var(--paper-sunk); }

.header__tools { display: flex; align-items: center; gap: .5rem; }
.icon-btn {
  display: inline-grid; place-items: center; width: 40px; height: 40px;
  border-radius: 10px; border: 1px solid var(--line); background: var(--paper-raised);
  color: var(--fg-dim); cursor: pointer; transition: all .2s var(--ease);
}
.icon-btn:hover { color: var(--fg); border-color: var(--line-strong); transform: translateY(-1px); }
.icon-btn svg { width: 18px; height: 18px; }
.lang { position: relative; }
.lang__btn { font-family: var(--f-mono); font-size: .8rem; font-weight: 500;
  letter-spacing: .05em; gap: .35rem; width: auto; padding-inline: .7rem; text-transform: uppercase; }
.lang__menu {
  position: absolute; right: 0; top: calc(100% + .5rem); min-width: 130px;
  background: var(--paper-raised); border: 1px solid var(--line); border-radius: 12px;
  box-shadow: var(--shadow); padding: .35rem; opacity: 0; visibility: hidden;
  transform: translateY(-6px); transition: all .22s var(--ease); z-index: 20;
}
.lang.open .lang__menu { opacity: 1; visibility: visible; transform: none; }
.lang__menu button { display: flex; width: 100%; align-items: center; gap: .6rem;
  padding: .55rem .7rem; border: 0; background: none; color: var(--fg-dim);
  font: inherit; font-size: .9rem; border-radius: 8px; cursor: pointer; text-align: left; }
.lang__menu button:hover { background: var(--paper-sunk); color: var(--fg); }
.lang__menu button[aria-current="true"] { color: var(--accent-ink); }
.lang__menu .flag { font-family: var(--f-mono); font-size: .7rem; letter-spacing: .05em;
  color: var(--fg-faint); margin-left: auto; }

/* Menü butonu (mobil) */
.menu-toggle { display: none; }

/* ---- 5. BUTTONS --------------------------------------------------------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  font-family: var(--f-body); font-weight: 500; font-size: .98rem; line-height: 1;
  padding: .92rem 1.4rem; border-radius: 12px; cursor: pointer; border: 1px solid transparent;
  transition: transform .2s var(--ease), box-shadow .25s var(--ease), background-color .2s, border-color .2s, color .2s;
  white-space: nowrap; }
.btn svg { width: 17px; height: 17px; transition: transform .25s var(--ease); }
.btn--primary { background: var(--accent); color: var(--on-accent);
  box-shadow: 0 10px 30px -12px var(--net-glow); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -12px var(--net-glow); }
.btn--primary:hover svg { transform: translateX(3px); }
.btn--ghost { background: transparent; color: var(--fg); border-color: var(--line-strong); }
.btn--ghost:hover { border-color: var(--fg); transform: translateY(-2px); background: var(--paper-raised); }
.btn--sm { padding: .6rem 1rem; font-size: .9rem; border-radius: 10px; }
.btn--block { width: 100%; }

/* Chip / rozet */
.chip { display: inline-flex; align-items: center; gap: .5rem; font-family: var(--f-mono);
  font-size: .74rem; font-weight: 500; letter-spacing: .08em; text-transform: uppercase;
  padding: .45rem .8rem; border-radius: 999px; border: 1px solid var(--line);
  background: var(--paper-raised); color: var(--fg-dim); }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--signal);
  box-shadow: 0 0 0 0 var(--signal); animation: pulse 2.4s var(--ease) infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 var(--signal-soft); }
  70% { box-shadow: 0 0 0 7px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }
@media (prefers-reduced-motion: reduce) { .dot { animation: none; } }

/* ---- 6. HERO ------------------------------------------------------------ */
.hero { position: relative; overflow: hidden; padding-top: clamp(1rem, 3vw, 2.5rem);
  padding-bottom: clamp(2.5rem, 5vw, 4.5rem); }
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0;
  opacity: .9; mask-image: radial-gradient(120% 110% at 72% 40%, #000 42%, transparent 92%); }
.hero__grid { position: relative; z-index: 1; display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr); gap: 2rem; align-items: center;
  min-height: min(64vh, 560px); }
.hero__col { max-width: 42ch; }
.hero h1 { font-size: var(--step-5); font-weight: 650; margin-top: 1.4rem;
  letter-spacing: -.025em; line-height: 1.02; }
.hero h1 em { font-style: italic; color: var(--accent-ink); font-weight: 600; }
.hero__lead { color: var(--fg-dim); font-size: var(--step-1); line-height: 1.5;
  margin-top: 1.6rem; max-width: 42ch; }
.hero__cta { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2.2rem; }
.hero__meta { display: flex; flex-wrap: wrap; gap: 1.4rem 2rem; margin-top: 2.6rem;
  padding-top: 1.8rem; border-top: 1px solid var(--line); }
.hero__meta div { display: flex; flex-direction: column; gap: .15rem; }
.hero__meta dt { font-family: var(--f-display); font-size: 1.7rem; font-weight: 600;
  color: var(--fg); font-variant-numeric: tabular-nums; letter-spacing: -.02em; }
.hero__meta dd { font-family: var(--f-mono); font-size: .72rem; text-transform: uppercase;
  letter-spacing: .1em; color: var(--fg-faint); margin: 0; }

/* ---- 7. LOGO-LEDÇE / GÜVEN ŞERİDİ -------------------------------------- */
.marquee { border-block: 1px solid var(--line); background: var(--paper-raised); }
.marquee__inner { display: flex; align-items: center; gap: 1rem; padding-block: 1.15rem;
  flex-wrap: wrap; justify-content: center; }
.marquee__label { font-family: var(--f-mono); font-size: .72rem; text-transform: uppercase;
  letter-spacing: .14em; color: var(--fg-faint); }
.marquee__items { display: flex; flex-wrap: wrap; gap: .6rem 1.6rem; align-items: center; }
.marquee__items a { font-family: var(--f-display); font-size: 1.05rem; font-weight: 600;
  color: var(--fg-dim); transition: color .2s; letter-spacing: -.01em; }
.marquee__items a:hover { color: var(--accent-ink); }

/* ---- 8. PRODUCTS -------------------------------------------------------- */
.products-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 1.1rem; }
.card {
  position: relative; background: var(--paper-raised); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.6rem; overflow: hidden;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s;
  display: flex; flex-direction: column; min-height: 100%;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift);
  border-color: var(--line-strong); }
.card::after { content: ""; position: absolute; inset: 0; border-radius: inherit;
  background: radial-gradient(120% 80% at 12% 0%, var(--tint, var(--accent-soft)), transparent 60%);
  opacity: .8; pointer-events: none; }
.card > * { position: relative; z-index: 1; }
.card__top { display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  margin-bottom: 1.1rem; }
.card__logo { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center;
  background: var(--tint, var(--accent-soft)); color: var(--tint-ink, var(--accent-ink));
  border: 1px solid var(--line); font-family: var(--f-display); font-weight: 600; font-size: 1.3rem; }
.card__logo svg { width: 24px; height: 24px; }
.card__status { font-family: var(--f-mono); font-size: .68rem; text-transform: uppercase;
  letter-spacing: .08em; color: var(--signal); display: inline-flex; align-items: center; gap: .4rem; }
.card h3 { font-size: var(--step-2); }
.card__kicker { font-family: var(--f-mono); font-size: .72rem; text-transform: uppercase;
  letter-spacing: .1em; color: var(--fg-faint); margin-bottom: .5rem; }
.card p { color: var(--fg-dim); font-size: .98rem; line-height: 1.55; margin-top: .7rem; }
.card__foot { margin-top: auto; padding-top: 1.3rem; display: flex; align-items: center;
  justify-content: space-between; gap: 1rem; }
.card__link { font-weight: 500; font-size: .92rem; color: var(--accent-ink);
  display: inline-flex; align-items: center; gap: .4rem; }
.card__link svg { width: 15px; height: 15px; transition: transform .25s var(--ease); }
.card:hover .card__link svg { transform: translate(2px,-2px); }
.card__tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: 1rem; }
.tag { font-family: var(--f-mono); font-size: .68rem; letter-spacing: .04em; color: var(--fg-faint);
  border: 1px solid var(--line); padding: .28rem .55rem; border-radius: 6px; }

/* kart yerleşim genişlikleri */
.col-6 { grid-column: span 6; }
.col-4 { grid-column: span 4; }
.col-12 { grid-column: span 12; }
.card--feature { display: grid; grid-template-columns: 1.1fr .9fr; gap: 1.6rem; align-items: center; }
.card--feature .card__visual { align-self: stretch; border-radius: var(--radius-sm);
  border: 1px solid var(--line); background: var(--paper-sunk); min-height: 200px; overflow: hidden; position: relative; }

/* ---- 9. APPROACH (orkestra) -------------------------------------------- */
.approach { background: var(--paper-sunk); border-block: 1px solid var(--line); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; margin-top: 1rem; }
.step { background: var(--paper-raised); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.6rem; position: relative; }
.step__no { font-family: var(--f-mono); font-size: .78rem; color: var(--accent-ink);
  letter-spacing: .1em; }
.step h3 { font-size: var(--step-1); margin-top: .9rem; }
.step p { color: var(--fg-dim); font-size: .95rem; margin-top: .6rem; line-height: 1.55; }
.step__icon { width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent-ink); margin-bottom: 1rem; border: 1px solid var(--accent-line); }
.step__icon svg { width: 20px; height: 20px; }

/* ---- 10. VALUES / FEATURES --------------------------------------------- */
.values { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; margin-top: 1rem;
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--paper-raised); }
.value { padding: 1.7rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.value:nth-child(2n) { border-right: 0; }
.value:nth-last-child(-n+2) { border-bottom: 0; }
.value__icon { color: var(--accent-ink); margin-bottom: .9rem; }
.value__icon svg { width: 22px; height: 22px; }
.value h3 { font-size: var(--step-1); }
.value p { color: var(--fg-dim); font-size: .95rem; margin-top: .5rem; line-height: 1.55; }

/* ---- 11. CTA BAND ------------------------------------------------------- */
.cta-band { position: relative; border-radius: var(--radius-lg); overflow: hidden;
  background: var(--paper-raised); border: 1px solid var(--line); padding: clamp(2.4rem, 6vw, 4.5rem);
  text-align: center; }
.cta-band__glow { position: absolute; inset: 0; z-index: 0; opacity: .9; }
.cta-band > * { position: relative; z-index: 1; }
.cta-band h2 { font-size: var(--step-4); max-width: 20ch; margin-inline: auto; }
.cta-band p { color: var(--fg-dim); font-size: var(--step-1); margin: 1.2rem auto 0; max-width: 46ch; }
.cta-band .hero__cta { justify-content: center; }

/* ---- 12. CONTACT -------------------------------------------------------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; }
.contact-info { display: flex; flex-direction: column; gap: 1.4rem; }
.contact-item { display: flex; gap: 1rem; align-items: flex-start; }
.contact-item__icon { width: 42px; height: 42px; flex: none; border-radius: 11px;
  background: var(--accent-soft); color: var(--accent-ink); display: grid; place-items: center;
  border: 1px solid var(--accent-line); }
.contact-item__icon svg { width: 19px; height: 19px; }
.contact-item h4 { font-family: var(--f-mono); font-size: .72rem; text-transform: uppercase;
  letter-spacing: .1em; color: var(--fg-faint); font-weight: 500; margin-bottom: .25rem; }
.contact-item a, .contact-item p { color: var(--fg); font-size: 1rem; line-height: 1.45; }
.contact-item a:hover { color: var(--accent-ink); }

.form { background: var(--paper-raised); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.7rem; display: flex; flex-direction: column; gap: 1rem; }
.field { display: flex; flex-direction: column; gap: .4rem; }
.field label { font-family: var(--f-mono); font-size: .72rem; text-transform: uppercase;
  letter-spacing: .08em; color: var(--fg-dim); }
.field input, .field textarea { font: inherit; font-size: .96rem; color: var(--fg);
  background: var(--paper); border: 1px solid var(--line); border-radius: 10px; padding: .8rem .9rem;
  transition: border-color .2s, box-shadow .2s; resize: vertical; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft); }
.form__note { font-size: .82rem; color: var(--fg-faint); }
.form__ok { display: none; align-items: center; gap: .6rem; color: var(--signal); font-size: .95rem; }
.form.sent .form__ok { display: flex; }
.form.sent .form__submit { display: none; }

/* ---- 13. FOOTER --------------------------------------------------------- */
.footer { border-top: 1px solid var(--line); background: var(--paper-raised);
  padding-block: clamp(3rem, 6vw, 4.5rem) 2rem; }
.footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 2rem; }
.footer__brand p { color: var(--fg-dim); font-size: .92rem; margin-top: 1rem; max-width: 30ch; line-height: 1.55; }
.footer h5 { font-family: var(--f-mono); font-size: .72rem; text-transform: uppercase;
  letter-spacing: .12em; color: var(--fg-faint); font-weight: 500; margin-bottom: 1rem; }
.footer__col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .6rem; }
.footer__col a { color: var(--fg-dim); font-size: .93rem; transition: color .2s; }
.footer__col a:hover { color: var(--fg); }
.footer__bottom { display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  flex-wrap: wrap; margin-top: clamp(2.5rem, 5vw, 3.5rem); padding-top: 1.6rem; border-top: 1px solid var(--line);
  color: var(--fg-faint); font-size: .84rem; }
.footer__bottom .f-mono { font-family: var(--f-mono); letter-spacing: .04em; }

/* ---- 14. REVEAL / MOTION ----------------------------------------------- */
[data-reveal] { opacity: 0; transform: translateY(22px);
  transition: opacity .8s var(--ease), transform .8s var(--ease); }
[data-reveal].in { opacity: 1; transform: none; }
[data-reveal-stagger] > * { opacity: 0; transform: translateY(20px);
  transition: opacity .7s var(--ease), transform .7s var(--ease); }
[data-reveal-stagger].in > * { opacity: 1; transform: none; }
[data-reveal-stagger].in > *:nth-child(2) { transition-delay: .07s; }
[data-reveal-stagger].in > *:nth-child(3) { transition-delay: .14s; }
[data-reveal-stagger].in > *:nth-child(4) { transition-delay: .21s; }
[data-reveal-stagger].in > *:nth-child(5) { transition-delay: .28s; }
[data-reveal-stagger].in > *:nth-child(6) { transition-delay: .35s; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal], [data-reveal-stagger] > * { opacity: 1 !important; transform: none !important; transition: none; }
}

/* ---- 15. RESPONSIVE ----------------------------------------------------- */
@media (max-width: 940px) {
  .hero__grid { grid-template-columns: 1fr; min-height: unset; }
  .hero__canvas { mask-image: radial-gradient(140% 80% at 60% 30%, #000 35%, transparent 90%); opacity: .55; }
  .card--feature { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 1.6rem; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 2rem 1.5rem; }
  .footer__brand { grid-column: 1 / -1; }
  .col-6, .col-4 { grid-column: span 6; }
  .steps { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .nav { display: none; }
  .menu-toggle { display: inline-grid; }
  .header__tools .desktop-cta { display: none; }
  .products-grid { grid-template-columns: repeat(6, 1fr); }
  .col-6, .col-4, .col-12 { grid-column: span 6; }
  .values { grid-template-columns: 1fr; }
  .value { border-right: 0 !important; }
  .footer__grid { grid-template-columns: 1fr; }
  .hero__meta { gap: 1.2rem 1.6rem; }
  .hero__meta dt { font-size: 1.4rem; }

  /* Mobil menü paneli */
  .mobile-nav { position: fixed; inset: 0; z-index: 200; background: var(--paper);
    transform: translateX(100%); transition: transform .4s var(--ease); display: flex;
    flex-direction: column; padding: 1.15rem var(--gutter); }
  .mobile-nav.open { transform: none; }
  .mobile-nav__head { display: flex; align-items: center; justify-content: space-between; height: 48px; }
  .mobile-nav__links { display: flex; flex-direction: column; gap: .3rem; margin-top: 2rem; }
  .mobile-nav__links a { font-family: var(--f-display); font-size: 1.8rem; font-weight: 600;
    padding: .6rem 0; border-bottom: 1px solid var(--line); }
  .mobile-nav__foot { margin-top: auto; padding-bottom: 1.5rem; }
}
@media (min-width: 721px) { .mobile-nav { display: none; } }

/* Uzun/geniş içerik yatay taşmasın */
.overflow-guard { overflow-x: auto; }

/* ---- 16. LEGAL PAGES ---------------------------------------------------- */
.legal { padding-block: clamp(3rem, 7vw, 6rem); }
.legal__head { max-width: 60ch; margin-bottom: clamp(2rem, 5vw, 3.2rem); }
.legal__head h1 { font-size: var(--step-4); margin-top: 1rem; }
.legal__head p { color: var(--fg-dim); margin-top: 1rem; font-size: var(--step-1); }
.legal__body { max-width: 72ch; }
.legal__body h2 { font-size: var(--step-2); margin-top: 2.6rem; margin-bottom: .8rem; }
.legal__body h3 { font-size: var(--step-1); margin-top: 1.6rem; margin-bottom: .5rem; font-family: var(--f-body); font-weight: 600; }
.legal__body p, .legal__body li { color: var(--fg-dim); line-height: 1.7; }
.legal__body p { margin-top: .9rem; }
.legal__body ul { margin: .9rem 0 0; padding-left: 1.2rem; display: flex; flex-direction: column; gap: .5rem; }
.legal__body a { color: var(--accent-ink); text-decoration: underline; text-underline-offset: 3px; }
.legal__body strong { color: var(--fg); font-weight: 600; }
.legal__toc { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .06em; text-transform: uppercase;
  color: var(--fg-faint); }
.backlink { display: inline-flex; align-items: center; gap: .5rem; font-size: .92rem; color: var(--fg-dim);
  margin-bottom: 1.4rem; }
.backlink:hover { color: var(--accent-ink); }
.backlink svg { width: 15px; height: 15px; }