/* ════════════════════════════════════════════════════════════
   CodeVocab — içerik sayfaları (Hakkında, Rehber, Gizlilik, Koşullar)
   Renk/tema/buton temeli: base.css
   ════════════════════════════════════════════════════════════ */

body {
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
}

.page-fx {
  position: absolute;
  inset: 0 0 auto 0;
  height: 760px;
}

.shell {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ───────────── Nav ───────────── */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, background 0.2s;
}

.site-nav.is-scrolled {
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: saturate(160%) blur(16px);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  border-bottom-color: var(--border);
}

.site-nav .shell {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 64px;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.025em;
}

.site-brand .brand-icon {
  width: 30px;
  height: 30px;
  object-fit: contain;
}

.site-brand .brand-word {
  width: auto;
  height: 19px;
  margin-top: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-right: 8px;
}

.nav-link {
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 14px;
  color: var(--text-2);
  text-decoration: none;
  transition: color 0.15s, background 0.15s;
}

.nav-link:hover {
  color: var(--text);
  background: var(--surface);
}

.nav-link[aria-current="page"] {
  color: var(--text);
  background: var(--surface-2);
}

/* ───────────── Page hero ───────────── */

.page-hero {
  position: relative;
  z-index: 1;
  padding: 88px 0 56px;
  text-align: center;
}

.page-hero .pill {
  margin-bottom: 24px;
}

.page-hero h1 {
  max-width: 880px;
  margin: 0 auto;
  font-size: clamp(38px, 6.4vw, 72px);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.05em;
  background: linear-gradient(180deg, var(--text) 35%, color-mix(in srgb, var(--text) 45%, transparent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-wrap: balance;
  /* degrade metinde ç/ş/ğ kuyrukları kesilmesin */
  padding-bottom: 0.12em;
  margin-bottom: -0.12em;
}

.page-hero .lead {
  max-width: 620px;
  margin: 22px auto 0;
  font-size: 18px;
  color: var(--text-2);
  text-wrap: pretty;
}

.page-hero .lead strong {
  color: var(--text);
  font-weight: 500;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 34px;
}

.page-meta {
  margin-top: 18px;
  font-size: 13px;
  color: var(--text-3);
}

/* ───────────── Section ───────────── */

.section {
  position: relative;
  z-index: 1;
  padding: 56px 0;
}

.eyebrow {
  margin: 0 0 14px;
  font-family: "Geist Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.section-title {
  margin: 0;
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.08;
  text-wrap: balance;
}

.section-lead {
  max-width: 640px;
  margin: 16px 0 0;
  color: var(--text-2);
  font-size: 17px;
}

/* ───────────── Feature cards ───────────── */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 36px;
}

.feature {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: var(--surface);
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s;
}

.feature::after {
  content: "";
  position: absolute;
  inset: auto -40% -60% auto;
  width: 260px;
  height: 260px;
  background: radial-gradient(closest-side, var(--accent-soft), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.feature:hover {
  border-color: var(--border-strong);
  transform: translateY(-3px);
}

.feature:hover::after {
  opacity: 1;
}

.feature-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 8px;
  border-radius: 12px;
  border: 1px solid var(--border-strong);
  background: var(--surface-2);
  color: var(--text);
}

.feature-num {
  position: absolute;
  top: 22px;
  right: 24px;
  font-family: "Geist Mono", monospace;
  font-size: 12px;
  color: var(--text-3);
}

.feature h3 {
  margin: 0;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.feature p {
  margin: 0;
  color: var(--text-2);
  font-size: 15px;
}

.feature-logo {
  height: 40px;
  width: auto;
  align-self: flex-start;
  margin-bottom: 8px;
}

/* ───────────── Editorial / quote ───────────── */

.editorial {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 48px;
  align-items: start;
  padding: 44px;
  border: 1px solid var(--border);
  border-radius: 28px;
  background:
    radial-gradient(80% 120% at 0% 0%, var(--accent-soft), transparent 60%),
    var(--surface);
}

.editorial p {
  margin: 0;
  font-size: 19px;
  line-height: 1.65;
  color: var(--text-2);
  text-wrap: pretty;
}

.editorial p em {
  font-style: normal;
  color: var(--text);
}

.editorial p + p {
  margin-top: 16px;
}

/* ───────────── Zaman çizelgesi (Hakkında) ───────────── */

.timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin: 36px 0 0;
  padding: 0;
  list-style: none;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 7px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--border-strong), var(--accent));
}

.timeline li {
  position: relative;
  padding-top: 34px;
}

.timeline li::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 15px;
  height: 15px;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  background: var(--bg);
}

.timeline li.is-now::before {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: 0 0 0 6px var(--accent-soft);
}

.timeline time {
  font-family: "Geist Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-3);
}

.timeline li.is-now time {
  color: var(--accent);
}

.timeline h3 {
  margin: 8px 0;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.03em;
}

.timeline p {
  margin: 0;
  max-width: 320px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-2);
}

.tech-grid.principles {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.tech-grid.principles .tech-item + .tech-item {
  border-left: 1px solid var(--border);
}

@media (min-width: 861px) {
  .tech-grid.principles .tech-item {
    border-top: 0;
  }

  .tech-grid.principles .tech-item + .tech-item {
    border-left: 1px solid var(--border);
  }
}

@media (max-width: 860px) {
  .timeline {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-left: 32px;
  }

  .timeline::before {
    top: 0;
    bottom: 0;
    left: 7px;
    right: auto;
    width: 1px;
    height: auto;
    background: linear-gradient(180deg, var(--border-strong), var(--accent));
  }

  .timeline li {
    padding-top: 0;
  }

  .timeline li::before {
    left: -32px;
    top: 2px;
  }

  .tech-grid.principles {
    grid-template-columns: 1fr;
  }

  .tech-grid.principles .tech-item + .tech-item {
    border-left: 0;
    border-top: 1px solid var(--border);
  }
}

/* ───────────── Tech grid ───────────── */

.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 36px;
  border: 1px solid var(--border);
  border-radius: 22px;
  overflow: hidden;
}

.tech-item {
  padding: 24px;
  background: var(--surface);
}

.tech-item + .tech-item {
  border-left: 1px solid var(--border);
}

.tech-item h3 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 600;
}

.tech-item h3 code {
  font-size: 12px;
  font-weight: 400;
  color: var(--text-3);
}

.tech-item p {
  margin: 0;
  font-size: 14px;
  color: var(--text-2);
}

/* ───────────── Stats ───────────── */

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 36px;
}

.stat {
  padding: 22px 24px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--surface);
}

.stat b {
  display: block;
  font-size: 40px;
  font-weight: 600;
  letter-spacing: -0.05em;
  line-height: 1.1;
}

.stat span {
  font-size: 14px;
  color: var(--text-3);
}

/* ───────────── CTA band ───────────── */

.cta {
  position: relative;
  padding: 64px 32px;
  border: 1px solid var(--border);
  border-radius: 32px;
  text-align: center;
  overflow: hidden;
  background: var(--surface);
}

.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(var(--dot) 1px, transparent 1px);
  background-size: 18px 18px;
  -webkit-mask-image: radial-gradient(ellipse 60% 70% at 50% 100%, #000, transparent 70%);
  mask-image: radial-gradient(ellipse 60% 70% at 50% 100%, #000, transparent 70%);
}

.cta::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -200px;
  width: 600px;
  height: 320px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, var(--glow-1), transparent);
  pointer-events: none;
}

.cta > * {
  position: relative;
  z-index: 1;
}

.cta h2 {
  margin: 0;
  font-size: clamp(30px, 4.6vw, 52px);
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 1.05;
}

.cta p {
  margin: 14px auto 0;
  max-width: 460px;
  color: var(--text-2);
  font-size: 17px;
}

/* ───────────── Doc layout (rehber, gizlilik, koşullar) ───────────── */

.doc {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 64px;
  padding-bottom: 80px;
}

.toc {
  position: sticky;
  top: 88px;
  align-self: start;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}

.toc p {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-3);
}

.toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--border);
}

.toc a {
  display: block;
  margin-left: -1px;
  padding: 6px 0 6px 14px;
  border-left: 1px solid transparent;
  font-size: 14px;
  color: var(--text-3);
  text-decoration: none;
  transition: color 0.15s, border-color 0.15s;
}

.toc a:hover {
  color: var(--text);
}

.toc a.active {
  color: var(--text);
  border-left-color: var(--accent);
}

.prose {
  max-width: 720px;
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--text-2);
}

.prose h2 {
  margin: 56px 0 14px;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.25;
  color: var(--text);
  scroll-margin-top: 88px;
}

.prose h2:first-child {
  margin-top: 0;
}

.prose h3 {
  margin: 28px 0 8px;
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
}

.prose p {
  margin: 0 0 16px;
}

.prose strong {
  color: var(--text);
  font-weight: 500;
}

.prose ul,
.prose ol {
  margin: 0 0 18px;
  padding-left: 22px;
}

.prose li {
  margin: 6px 0;
}

.prose li::marker {
  color: var(--text-3);
}

.prose code {
  padding: 1px 6px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  font-size: 0.86em;
  color: var(--text);
}

.prose a {
  color: var(--text);
  text-decoration-color: var(--accent);
  text-underline-offset: 3px;
}

.callout {
  display: flex;
  gap: 14px;
  margin: 22px 0;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
  font-size: 15px;
}

.callout svg {
  margin-top: 4px;
  color: var(--accent);
}

.callout.warn svg {
  color: var(--warn);
}

.callout p {
  margin: 0;
}

/* rehber adımları */
.steps {
  display: grid;
  gap: 12px;
  margin: 22px 0 8px;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.steps li {
  position: relative;
  margin: 0;
  padding: 16px 18px 16px 58px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
  counter-increment: step;
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 18px;
  top: 16px;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  font-family: "Geist Mono", monospace;
  font-size: 12px;
  color: var(--text);
}

.steps li strong {
  display: block;
  margin-bottom: 2px;
}

.kbd {
  display: inline-block;
  padding: 0 6px;
  border: 1px solid var(--border-strong);
  border-bottom-width: 2px;
  border-radius: 6px;
  font-family: "Geist Mono", monospace;
  font-size: 0.82em;
  color: var(--text);
}

.score-scale {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin: 18px 0 22px;
}

.score-scale div {
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 13px;
  line-height: 1.4;
}

.score-scale b {
  display: block;
  margin-bottom: 2px;
  font-size: 15px;
  color: var(--c);
}

/* ───────────── Footer ───────────── */

.site-footer {
  position: relative;
  z-index: 1;
  margin-top: 64px;
  overflow: hidden;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

/* Üst kenarda ince pembe ışık çizgisi + altında hafif hale */
.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 50%;
  width: min(720px, 90%);
  height: 1px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.footer-glow {
  position: absolute;
  top: -180px;
  left: 50%;
  width: 760px;
  height: 320px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, var(--glow-1), transparent);
  pointer-events: none;
}

.footer-top {
  position: relative;
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 48px;
  padding: 64px 0 40px;
}

.footer-logo {
  width: 176px;
  height: auto;
}

.footer-desc {
  max-width: 320px;
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-2);
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.footer-cols h4 {
  margin: 0 0 16px;
  font-family: "Geist Mono", monospace;
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}

.footer-cols a {
  display: flex;
  align-items: center;
  gap: 4px;
  width: fit-content;
  padding: 5px 0;
  font-size: 14px;
  color: var(--text-2);
  text-decoration: none;
  transition: color 0.15s, transform 0.2s;
}

.footer-cols a:hover {
  color: var(--text);
  transform: translateX(3px);
}

.footer-cols .ext {
  font-size: 12px;
  color: var(--text-3);
  transition: color 0.15s;
}

.footer-cols a:hover .ext {
  color: var(--accent);
}

.footer-partners {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 0 0 8px;
  font-size: 13px;
  color: var(--text-3);
}

.footer-partners a {
  display: inline-flex;
  opacity: 0.65;
  transition: opacity 0.15s;
}

.footer-partners a:hover {
  opacity: 1;
}

.footer-partners img {
  width: auto;
}

/* Görsel ağırlıkları eşitlemek için: whyasaf geniş ve dolu, marki küçük harfli */
.footer-partners .partner-whyasaf {
  height: 17px;
}

.footer-partners .partner-marki {
  height: 19px;
}

.footer-partners .x {
  color: var(--accent);
}

/* Dev yazı: alttan kesik, imleci takip eden pembe ışık */
.footer-mark {
  --mx: 50%;
  --my: 50%;
  position: relative;
  display: grid;
  height: 0.74em;
  margin-top: 24px;
  overflow: hidden;
  font-size: clamp(72px, 18.5vw, 236px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.065em;
  text-align: center;
  user-select: none;
}

.footer-mark span {
  grid-area: 1 / 1;
  padding-right: 0.065em;
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

.mark-base {
  background-image: linear-gradient(180deg, var(--surface-3) 10%, transparent 100%);
}

.mark-light {
  background-image: radial-gradient(260px circle at var(--mx) var(--my), var(--accent) 0%, var(--accent-2) 25%, transparent 70%);
  opacity: 0;
  transition: opacity 0.4s;
}

.footer-mark:hover .mark-light {
  opacity: 1;
}

.footer-bottom {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 20px 0 28px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-3);
}

.footer-bottom a {
  color: var(--text-2);
  text-decoration: none;
  transition: color 0.15s;
}

.footer-bottom a:hover {
  color: var(--accent);
}

.footer-bottom .sep {
  margin: 0 4px;
  opacity: 0.5;
}

.to-top {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  font: inherit;
  color: var(--text-2);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}

.to-top:hover {
  border-color: var(--border-strong);
  color: var(--text);
}

.to-top svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.2s;
}

.to-top:hover svg {
  transform: translateY(-2px);
}

/* ───────────── Responsive ───────────── */

@media (max-width: 960px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .tech-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .tech-item + .tech-item {
    border-left: 0;
  }

  .tech-item:nth-child(even) {
    border-left: 1px solid var(--border);
  }

  .tech-item:nth-child(n + 3) {
    border-top: 1px solid var(--border);
  }

  .editorial {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 30px;
  }

  .doc {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .toc {
    display: none;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

@media (max-width: 640px) {
  .shell {
    padding: 0 16px;
  }

  .nav-links .nav-link:not(.keep) {
    display: none;
  }

  .page-hero {
    padding: 56px 0 36px;
  }

  .page-hero .lead {
    font-size: 16px;
  }

  .section {
    padding: 40px 0;
  }

  .tech-grid {
    grid-template-columns: 1fr;
  }

  .tech-item:nth-child(even) {
    border-left: 0;
  }

  .tech-item + .tech-item {
    border-top: 1px solid var(--border);
  }

  .stats {
    grid-template-columns: 1fr;
  }

  .score-scale {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cta {
    padding: 48px 20px;
    border-radius: 24px;
  }

  .footer-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .prose {
    font-size: 16px;
  }
}