/* BoStreak web — uygulamanın tasarım dili (apps/mobile/src/constants/theme.ts): Inter, beyaz zemin,
   1px ince çerçeveler, marka mavisi, altın yalnız seri/XP vurgusu. Renkler token olarak tanımlı. */

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url(/assets/fonts/inter-latin-ext-wght-normal.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329,
    U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url(/assets/fonts/inter-latin-wght-normal.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329,
    U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  color-scheme: light;
  --bg: #ffffff;
  --surface: #f6f7f9;
  --element: #f1f3f6;
  --line: #e6e8ec;
  --edge: #d9dde3;
  --text: #0e1525;
  --text-2: #5b6474;
  --text-3: #8a93a3;
  --accent: #1f3fe0;
  --accent-text: #1f3fe0;
  --on-accent: #ffffff;
  --accent-soft: #edf1fe;
  --gold: #e8a317;
  --gold-soft: #fdf4e1;
  --positive: #16935a;
  --positive-soft: #e6f6ee;
  --negative: #d6343a;
  --negative-soft: #fdecec;
  --radius: 16px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #0a0e18;
    --surface: #111725;
    --element: #1a2234;
    --line: #222a3b;
    --edge: #2a3346;
    --text: #f2f4f8;
    --text-2: #98a1b3;
    --text-3: #6b7486;
    --accent: #4d6bff;
    --accent-text: #8399ff;
    --accent-soft: #18214a;
    --gold: #f5b83d;
    --gold-soft: #2e2615;
    --positive: #3dcb84;
    --positive-soft: #11291d;
    --negative: #ff6b6b;
    --negative-soft: #2e1619;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  font-feature-settings: 'cv11', 'ss01';
  -webkit-font-smoothing: antialiased;
}
img,
svg {
  display: block;
  max-width: 100%;
}
a {
  color: var(--accent-text);
  text-underline-offset: 3px;
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}
h1,
h2,
h3 {
  margin: 0;
  line-height: 1.15;
  letter-spacing: -0.025em;
  text-wrap: balance;
}
p {
  margin: 0;
}

.wrap {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}
.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 16px;
  top: 12px;
  z-index: 10;
  background: var(--bg);
  padding: 8px 12px;
}

/* Üst çubuk */
.site-header {
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -0.02em;
}
.brand img {
  width: 32px;
  height: 32px;
}
.site-nav {
  display: flex;
  gap: 4px;
  margin-left: auto;
}
.site-nav a {
  color: var(--text-2);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: 999px;
}
.site-nav a:hover {
  color: var(--text);
  background: var(--element);
}
.site-nav a[aria-current='page'] {
  color: var(--text);
}
.soon {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  border: 1px solid var(--edge);
  border-radius: 999px;
  padding: 7px 14px;
  white-space: nowrap;
}
.soon svg {
  width: 15px;
  height: 15px;
}

/* Hero */
.hero {
  padding: 72px 0 88px;
}
.hero .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 56px;
  align-items: center;
}
.hero h1 {
  font-size: clamp(42px, 6.2vw, 76px);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1;
}
.hero .lead {
  margin-top: 24px;
  font-size: 19px;
  line-height: 1.55;
  color: var(--text-2);
  max-width: 34em;
}
.promises {
  list-style: none;
  padding: 0;
  margin: 28px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  font-size: 15px;
  font-weight: 500;
}
.promises li {
  display: flex;
  align-items: center;
  gap: 8px;
}
.promises svg {
  width: 18px;
  height: 18px;
  color: var(--accent-text);
  flex: none;
}
.hero-actions {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font: inherit;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--accent);
  color: var(--on-accent);
}
.btn-primary:hover {
  filter: brightness(0.94);
}
.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--edge);
}
.btn-secondary:hover {
  background: var(--element);
}

/* Ders denemesi (hero'daki etkileşimli kart) */
.demo {
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 20px 20px 22px;
  background: var(--bg);
  box-shadow: 0 24px 60px -32px rgba(14, 21, 37, 0.28);
  max-width: 440px;
  width: 100%;
  justify-self: end;
}
.demo-top {
  display: flex;
  align-items: center;
  gap: 12px;
}
.demo-track {
  flex: 1;
  height: 6px;
  border-radius: 999px;
  background: var(--element);
  overflow: hidden;
}
.demo-fill {
  height: 100%;
  width: 34%;
  background: var(--accent);
  border-radius: inherit;
  transition: width 0.4s ease;
}
.demo-xp {
  font-size: 13px;
  font-weight: 700;
  color: #9a6a06;
  background: var(--gold-soft);
  border-radius: 999px;
  padding: 3px 10px;
  white-space: nowrap;
}
@media (prefers-color-scheme: dark) {
  .demo-xp {
    color: var(--gold);
  }
}
.demo-ask {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  margin: 22px 0 18px;
}
.demo-bo {
  width: 92px;
  flex: none;
}
.bubble {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 12px 14px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 26px;
}
.bubble::before {
  content: '';
  position: absolute;
  left: -7px;
  bottom: 16px;
  width: 12px;
  height: 12px;
  background: var(--bg);
  border-left: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transform: rotate(45deg);
}
.options {
  display: grid;
  gap: 10px;
}
.option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  min-height: 52px;
  padding: 12px 16px;
  text-align: left;
  font: inherit;
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--edge);
  border-radius: 14px;
  cursor: pointer;
}
.option:hover:not([disabled]) {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.option[disabled] {
  cursor: default;
}
.option.is-correct {
  border-color: var(--positive);
  background: var(--positive-soft);
  font-weight: 600;
}
.option.is-wrong {
  border-color: var(--negative);
  background: var(--negative-soft);
}
.option .mark {
  width: 20px;
  height: 20px;
  flex: none;
}
.feedback {
  margin-top: 14px;
  min-height: 0;
}
.feedback {
  display: flex;
  flex-direction: column;
}
.feedback .btn {
  margin-top: auto;
}
.feedback-body {
  margin-bottom: 12px;
}
.feedback.is-idle .feedback-body {
  visibility: hidden;
}
.feedback .btn[disabled] {
  background: var(--element);
  color: var(--text-3);
  cursor: default;
  filter: none;
}
.mark-ok {
  color: var(--positive);
}
.mark-no {
  color: var(--negative);
}
.feedback-body {
  border-radius: 14px;
  padding: 14px 16px;
  font-size: 15px;
  line-height: 1.5;
}
.feedback.ok .feedback-body {
  background: var(--positive-soft);
}
.feedback.no .feedback-body {
  background: var(--negative-soft);
}
.feedback strong {
  display: block;
  font-size: 16px;
  margin-bottom: 2px;
}
.feedback.ok strong {
  color: var(--positive);
}
.feedback.no strong {
  color: var(--negative);
}
.feedback .btn {
  width: 100%;
}
.demo-note {
  margin-top: 14px;
  font-size: 13px;
  color: var(--text-3);
  text-align: center;
}
@media (prefers-reduced-motion: no-preference) {
  .demo-bo.pop {
    animation: pop 0.45s cubic-bezier(0.3, 1.6, 0.5, 1);
  }
  @keyframes pop {
    0% {
      transform: scale(0.92) translateY(4px);
    }
    100% {
      transform: none;
    }
  }
}

/* Bölümler */
.section {
  padding: 88px 0;
  border-top: 1px solid var(--line);
}
.section-head {
  max-width: 640px;
  margin-bottom: 44px;
}
.section-head h2 {
  font-size: clamp(30px, 3.6vw, 44px);
  font-weight: 800;
  letter-spacing: -0.035em;
}
.section-head p {
  margin-top: 14px;
  font-size: 18px;
  color: var(--text-2);
}

/* Nasıl çalışır: gerçek bir sıra, numaralı */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.steps li {
  padding: 28px 28px 32px;
}
.steps li + li {
  border-left: 1px solid var(--line);
}
.step-n {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 18px;
}
.steps h3 {
  font-size: 21px;
  font-weight: 700;
}
.steps p {
  margin-top: 8px;
  color: var(--text-2);
  font-size: 16px;
}

/* Seri */
.streak .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
}
.week {
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 28px 24px;
}
.week-head {
  display: flex;
  align-items: center;
  gap: 16px;
}
.week-head img {
  width: 76px;
}
.week-count {
  font-size: 44px;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
}
.week-label {
  color: var(--text-2);
  font-size: 15px;
  font-weight: 500;
}
.days {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 6px;
  text-align: center;
}
.day {
  display: grid;
  justify-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-3);
}
.dot {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: var(--element);
  color: var(--text-3);
}
.dot svg {
  width: 20px;
  height: 20px;
}
.day.done .dot {
  background: var(--gold);
  color: #fff;
}
.day.freeze .dot {
  background: var(--accent-soft);
  color: var(--accent-text);
}
.day.today .dot {
  background: transparent;
  box-shadow: inset 0 0 0 2px var(--gold);
  color: var(--gold);
}
.day.done,
.day.today {
  color: var(--text);
}
.streak-copy h2 {
  font-size: clamp(30px, 3.6vw, 44px);
  font-weight: 800;
  letter-spacing: -0.035em;
}
.streak-copy p {
  margin-top: 16px;
  font-size: 18px;
  color: var(--text-2);
  max-width: 32em;
}

/* Özellikler: iki sütunlu tanım listesi */
.facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  column-gap: 56px;
}
.fact {
  position: relative;
  padding: 26px 0 28px 66px;
  border-top: 1px solid var(--line);
}
.fact dt {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.3;
}
.fact dd {
  margin: 6px 0 0;
  color: var(--text-2);
  font-size: 16px;
}
.tile {
  position: absolute;
  left: 0;
  top: 24px;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: var(--accent-soft);
  color: var(--accent-text);
}
.tile.gold {
  background: var(--gold-soft);
  color: var(--gold);
}
.tile svg {
  width: 24px;
  height: 24px;
}

/* Bo ne yapmaz */
.bo-rules .wrap {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 56px;
  align-items: center;
}
.bo-rules img {
  width: 220px;
}
.bo-rules h2 {
  font-size: clamp(30px, 3.6vw, 44px);
  font-weight: 800;
  letter-spacing: -0.035em;
}
.bo-rules p {
  margin-top: 16px;
  font-size: 18px;
  color: var(--text-2);
  max-width: 36em;
}

/* SSS */
.faq {
  max-width: 760px;
}
.faq details {
  border-top: 1px solid var(--line);
}
.faq details:last-child {
  border-bottom: 1px solid var(--line);
}
.faq summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 40px 20px 0;
  font-size: 18px;
  font-weight: 600;
  position: relative;
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq summary::after {
  content: '';
  position: absolute;
  right: 6px;
  top: 50%;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--text-2);
  border-bottom: 2px solid var(--text-2);
  transform: translateY(-70%) rotate(45deg);
}
.faq details[open] summary::after {
  transform: translateY(-30%) rotate(-135deg);
}
.faq .answer {
  padding: 0 0 22px;
  color: var(--text-2);
  max-width: 42em;
}

/* Metin sayfaları (destek, hesap silme, yasal) */
.doc {
  padding: 56px 0 96px;
}
.doc .wrap {
  max-width: 760px;
}
.doc h1 {
  font-size: clamp(34px, 4.6vw, 48px);
  font-weight: 800;
  letter-spacing: -0.035em;
}
.doc .meta {
  margin-top: 12px;
  color: var(--text-3);
  font-size: 15px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
}
.doc .intro {
  margin-top: 24px;
  font-size: 18px;
  color: var(--text-2);
}
.doc h2 {
  font-size: 22px;
  font-weight: 700;
  margin-top: 40px;
  letter-spacing: -0.015em;
}
.doc p,
.doc ul,
.doc ol {
  margin-top: 12px;
}
.doc ul,
.doc ol {
  padding-left: 22px;
}
.doc li + li {
  margin-top: 6px;
}
.doc .note {
  color: var(--text-2);
}
.callout {
  margin-top: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 22px;
  background: var(--surface);
}
.callout p:first-child {
  margin-top: 0;
}
.path {
  font-weight: 600;
  color: var(--text);
}
.toc {
  margin-top: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 22px;
}
.toc ol {
  margin: 0;
  padding-left: 0;
  list-style: none;
  columns: 2;
  column-gap: 24px;
  font-size: 15px;
}
.toc li {
  break-inside: avoid;
}
.toc a {
  color: var(--text-2);
  text-decoration: none;
}
.toc a:hover {
  color: var(--accent-text);
  text-decoration: underline;
}

/* Alt bilgi */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 48px 0 56px;
  font-size: 15px;
  color: var(--text-2);
}
.site-footer .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 32px 56px;
}
.site-footer .disclaimer {
  margin-top: 14px;
  max-width: 34em;
}
.footer-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 24px;
  align-content: start;
}
.footer-links a {
  color: var(--text-2);
  text-decoration: none;
}
.footer-links a:hover {
  color: var(--text);
  text-decoration: underline;
}
.copyright {
  grid-column: 1 / -1;
  color: var(--text-3);
  font-size: 14px;
}

/* 404 */
.lost {
  padding: 88px 0 120px;
  text-align: center;
}
.lost img {
  width: 180px;
  margin: 0 auto 24px;
}
.lost h1 {
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.035em;
}
.lost p {
  margin-top: 12px;
  color: var(--text-2);
}
.lost .btn {
  margin-top: 28px;
}

/* Dar ekranlar */
@media (max-width: 900px) {
  .hero {
    padding: 44px 0 64px;
  }
  .hero .wrap,
  .streak .wrap {
    grid-template-columns: minmax(0, 1fr);
    gap: 40px;
  }
  .streak-copy {
    order: -1;
  }
  .demo {
    justify-self: stretch;
    max-width: none;
  }
  .steps {
    grid-template-columns: minmax(0, 1fr);
  }
  .steps li + li {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .facts {
    grid-template-columns: minmax(0, 1fr);
  }
  .bo-rules .wrap {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }
  .bo-rules img {
    width: 150px;
  }
  .site-footer .wrap {
    grid-template-columns: minmax(0, 1fr);
  }
  .section {
    padding: 64px 0;
  }
}
@media (max-width: 640px) {
  body {
    font-size: 16px;
  }
  .site-nav a:not(.keep) {
    display: none;
  }
  .site-header .wrap {
    gap: 12px;
  }
  .soon {
    display: none;
  }
  .hero .lead {
    font-size: 17px;
  }
  .demo {
    padding: 16px;
    border-radius: 22px;
  }
  .demo-bo {
    width: 72px;
  }
  .dot {
    width: 36px;
    height: 36px;
  }
  .toc ol {
    columns: 1;
  }
}