/* ADK Software Studio · renkler marka panosundan örneklendi (docs/marka) */
:root {
  --night: #04060F;
  --night-2: #080C1A;
  --surface: #0D1324;
  --slate: #131A2A;
  --line: rgba(218, 219, 232, 0.11);
  --line-strong: rgba(218, 219, 232, 0.22);
  --text: #E9EAF4;
  --muted: #A7ACC6;
  --platinum: #DADBE8;
  --violet: #7B39FC;
  --violet-soft: #A98BFF;
  --blue: #0E72FD;
  --blue-soft: #5AA2FF;
  --grad: linear-gradient(100deg, #A98BFF 0%, #7B39FC 40%, #0E72FD 100%);
  --grad-text: linear-gradient(100deg, #B9A0FF 0%, #8C66FF 45%, #3D8EFF 100%);
  --radius: 20px;
  --wrap: 1180px;
  --display: 'Montserrat', 'Helvetica Neue', Arial, sans-serif;
  --body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { background: var(--night); color: var(--text); -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; font-family: var(--body); font-size: 17px; line-height: 1.6; background: var(--night); overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--violet-soft); text-decoration: none; }
a:hover { color: #C9B8FF; }
:focus-visible { outline: 2px solid var(--blue-soft); outline-offset: 3px; border-radius: 6px; }
svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; flex: none; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .wrap { padding: 0 32px; } }
.narrow { max-width: 760px; }
.muted { color: var(--muted); }

.skip { position: absolute; left: 16px; top: -60px; z-index: 50; padding: 10px 16px; border-radius: 10px; background: var(--violet); color: #fff; }
.skip:focus { top: 12px; color: #fff; }

/* Üst çubuk */
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(4, 6, 15, 0.72); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--text); min-height: 44px; }
.brand:hover { color: var(--text); }
.brand-mark { width: 62px; height: auto; }
.brand-word { display: flex; flex-direction: column; line-height: 1.05; }
.brand-adk { font-family: var(--display); font-weight: 400; letter-spacing: 0.42em; font-size: 15px; }
.brand-sub { font-family: var(--display); font-weight: 400; letter-spacing: 0.3em; font-size: 9.5px; text-transform: uppercase; color: var(--muted); }
.nav { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.nav ul { list-style: none; display: flex; gap: 4px; margin: 0; padding: 0; flex-wrap: wrap; }
.nav a { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 12px; border-radius: 10px; color: var(--muted); font-size: 15px; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--text); background: rgba(255, 255, 255, 0.04); }
.nav .lang { border: 1px solid var(--line-strong); color: var(--text); }
.nav .lang svg { width: 17px; height: 17px; }
@media (max-width: 640px) {
  .bar { padding-top: 6px; padding-bottom: 6px; }
  .brand-sub { display: none; }
  .nav a { padding: 0 9px; font-size: 14px; }
  .nav .lang span { display: none; }
}

/* Işık kıvrımları */
.ribbons { position: absolute; inset: 0; overflow: hidden; pointer-events: none; z-index: -1; }
.rib { position: absolute; width: 70%; height: 120%; filter: drop-shadow(0 0 18px rgba(123, 57, 252, 0.55)); }
.rib-violet { left: -18%; top: -20%; animation: drift-a 18s ease-in-out infinite alternate; }
.rib-blue { right: -12%; bottom: -18%; filter: drop-shadow(0 0 22px rgba(14, 114, 253, 0.6)); animation: drift-b 22s ease-in-out infinite alternate; }
.ribbons::before, .ribbons::after { content: ''; position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.55; }
.ribbons::before { width: 520px; height: 520px; left: -160px; top: -200px; background: radial-gradient(circle, rgba(123, 57, 252, 0.55), transparent 65%); }
.ribbons::after { width: 620px; height: 620px; right: -220px; bottom: -280px; background: radial-gradient(circle, rgba(14, 114, 253, 0.5), transparent 65%); }
@keyframes drift-a { from { transform: translate3d(0, 0, 0); } to { transform: translate3d(24px, 14px, 0); } }
@keyframes drift-b { from { transform: translate3d(0, 0, 0); } to { transform: translate3d(-28px, -12px, 0); } }

/* Hero */
.hero { position: relative; isolation: isolate; padding: 72px 0 88px; border-bottom: 1px solid var(--line); background: radial-gradient(120% 90% at 50% 0%, var(--night-2), var(--night) 70%); }
.hero .wrap { position: relative; }
.hero-grid { display: grid; gap: 48px; align-items: center; }
@media (min-width: 960px) { .hero { padding: 120px 0 132px; } .hero-grid { grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); } }
.eyebrow { margin: 0 0 18px; font-family: var(--display); font-size: 12.5px; font-weight: 500; letter-spacing: 0.32em; text-transform: uppercase; color: var(--violet-soft); }
.display { margin: 0; font-family: var(--display); font-weight: 300; text-transform: uppercase; letter-spacing: 0.2em; line-height: 1.22; font-size: clamp(1.7rem, 6.2vw, 3.7rem); }
.display span { display: block; }
.grad { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; font-weight: 500; }
.lead { margin: 26px 0 0; max-width: 34em; color: var(--muted); font-size: 18px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 34px 0 0; }
.hero-art { display: flex; flex-direction: column; align-items: center; gap: 28px; }
.hero-lockup { width: min(100%, 362px); }
.hero-side { list-style: none; margin: 0; padding: 0 0 0 18px; border-left: 1px solid var(--line-strong); color: var(--muted); font-size: 15px; line-height: 1.9; align-self: center; }

/* Butonlar */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 48px; padding: 0 22px; border-radius: 12px; font-weight: 500; font-size: 16px; transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease; }
.btn svg { width: 18px; height: 18px; }
.btn-primary { color: #fff; background: linear-gradient(100deg, #6A2FE8, #3A53F0 55%, #0C64E0); box-shadow: 0 8px 30px -10px rgba(123, 57, 252, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.18); }
.btn-primary:hover { color: #fff; transform: translateY(-1px); box-shadow: 0 12px 36px -10px rgba(14, 114, 253, 0.75), inset 0 1px 0 rgba(255, 255, 255, 0.22); }
.btn-ghost { color: var(--text); border: 1px solid var(--line-strong); background: rgba(255, 255, 255, 0.02); }
.btn-ghost:hover { color: var(--text); border-color: rgba(169, 139, 255, 0.6); background: rgba(123, 57, 252, 0.08); }

/* Bölümler */
.section { padding: 84px 0; }
.section-tight { padding: 48px 0 84px; }
.section-band { background: linear-gradient(180deg, rgba(19, 26, 42, 0.35), rgba(4, 6, 15, 0)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-title { margin: 0 0 36px; font-family: var(--display); font-weight: 400; font-size: clamp(1.5rem, 3.4vw, 2.3rem); letter-spacing: 0.02em; line-height: 1.2; }
.section-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 36px; }
.section-head .section-title { margin: 0; }
.link-arrow { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; color: var(--text); }
.link-arrow:hover svg { transform: translateX(3px); }
.link-arrow svg { transition: transform 0.2s ease; }

.grid-3, .grid-2 { display: grid; gap: 18px; }
@media (min-width: 760px) { .grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } .grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

.card { position: relative; padding: 28px; border-radius: var(--radius); background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.008)); border: 1px solid var(--line); transition: border-color 0.25s ease, transform 0.25s ease; }
.card:hover { border-color: rgba(169, 139, 255, 0.35); }
.card-icon { display: inline-flex; align-items: center; justify-content: center; width: 48px; height: 48px; border-radius: 14px; margin-bottom: 22px; color: #fff; background: linear-gradient(140deg, rgba(123, 57, 252, 0.9), rgba(14, 114, 253, 0.9)); box-shadow: 0 10px 26px -12px rgba(123, 57, 252, 0.9); }
.card-icon svg { width: 22px; height: 22px; }
.card-title { margin: 0 0 10px; font-family: var(--display); font-weight: 500; font-size: 19px; letter-spacing: 0.01em; }
.card-text { margin: 0; color: var(--muted); font-size: 16px; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 18px; counter-reset: s; }
@media (min-width: 760px) { .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1080px) { .steps { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.step { padding: 28px 24px; border-radius: var(--radius); border: 1px solid var(--line); background: rgba(8, 12, 26, 0.6); }
.step-n { display: block; margin-bottom: 18px; font-family: var(--display); font-weight: 300; font-size: 34px; letter-spacing: 0.08em; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }

.app-top { display: flex; align-items: center; gap: 16px; margin-bottom: 18px; }
.app-icon { width: 72px; height: 72px; border-radius: 18px; box-shadow: 0 10px 30px -14px rgba(0, 0, 0, 0.9); }
.app-icon-ph { display: inline-flex; align-items: center; justify-content: center; color: #fff; background: linear-gradient(140deg, #2A1466, #0B2A6E); border: 1px solid var(--line-strong); }
.app-icon-ph svg { width: 30px; height: 30px; }
.app-top .card-title { margin: 0; }
.app-sub { margin: 2px 0 0; color: var(--muted); font-size: 14px; letter-spacing: 0.04em; }
.app-meta { display: flex; align-items: center; gap: 12px; margin: 22px 0 0; color: var(--muted); font-size: 14px; flex-wrap: wrap; }
.pill { display: inline-flex; align-items: center; min-height: 28px; padding: 0 12px; border-radius: 999px; font-size: 13px; font-weight: 500; color: #E4DBFF; background: rgba(123, 57, 252, 0.18); border: 1px solid rgba(169, 139, 255, 0.35); }

.cta-band { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px; padding: 40px; border-radius: 26px; border: 1px solid rgba(169, 139, 255, 0.28); background: radial-gradient(90% 140% at 0% 0%, rgba(123, 57, 252, 0.22), transparent 60%), radial-gradient(90% 140% at 100% 100%, rgba(14, 114, 253, 0.22), transparent 60%), var(--surface); }
.cta-band .section-title { margin: 0 0 8px; }
@media (max-width: 520px) { .cta-band { padding: 28px 20px; } .cta-band .btn { width: 100%; font-size: 14.5px; padding: 0 14px; } }

/* Alt sayfalar */
.page-hero { position: relative; isolation: isolate; padding: 72px 0 56px; border-bottom: 1px solid var(--line); background: radial-gradient(120% 90% at 50% 0%, var(--night-2), var(--night) 70%); }
.page-hero .wrap { position: relative; }
.page-hero .rib { opacity: 0.7; }
.page-title { margin: 0; font-family: var(--display); font-weight: 300; font-size: clamp(1.9rem, 5vw, 3.2rem); letter-spacing: 0.04em; line-height: 1.15; }
.prose { margin: 0 0 16px; color: var(--muted); font-size: 17px; max-width: 42em; }
.updated { margin: 0 0 24px; color: var(--muted); font-size: 14px; }
.legal-h { margin: 34px 0 12px; font-family: var(--display); font-weight: 500; font-size: 20px; }
.legal-list { margin: 0; padding-left: 20px; color: var(--text); }
.legal-list li { margin: 6px 0; }

.contact-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.contact-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; }
.mail { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; padding: 0 16px; border-radius: 12px; border: 1px solid var(--line-strong); color: var(--text); word-break: break-all; }
.mail:hover { color: var(--text); border-color: rgba(169, 139, 255, 0.6); background: rgba(123, 57, 252, 0.08); }

/* Alt bilgi */
.site-footer { border-top: 1px solid var(--line); padding: 56px 0 40px; background: var(--night); }
.foot { display: grid; gap: 28px; }
@media (min-width: 860px) { .foot { grid-template-columns: minmax(0, 1fr) auto; align-items: start; } .foot-copy { grid-column: 1 / -1; } }
.foot-lockup { width: 180px; }
.foot-tag { margin: 12px 0 0; font-family: var(--display); font-weight: 300; letter-spacing: 0.24em; text-transform: uppercase; font-size: 12.5px; color: var(--muted); }
.foot-links { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px 8px; }
.foot-links a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 10px; color: var(--muted); font-size: 15px; }
.foot-links a:hover { color: var(--text); }
.foot-copy { margin: 0; color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); padding-top: 24px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .rib { animation: none !important; }
  .btn, .card, .link-arrow svg { transition: none; }
}