/* FS Tracker — site stilleri. Harici yazı tipi ya da kütüphane yok. */

:root {
  --navy: #071733;
  --navy-2: #0d2a57;
  --accent: #1e6fd9;
  --accent-strong: #1559b3;
  --gold: #ffc72c;
  --bg: #ffffff;
  --bg-soft: #f4f7fb;
  --surface: #ffffff;
  --text: #0c1a2e;
  --muted: #55657d;
  --border: #e1e8f2;
  --shadow: 0 18px 50px rgba(7, 23, 51, 0.12);
  --radius: 18px;
  --mint: #12b886;
  --green: #2f9e44;
  --blue: #1c7ed6;
  --orange: #f08c00;
  --red: #e03131;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --accent: #4c9bff;
    --accent-strong: #7ab4ff;
    --bg: #070d18;
    --bg-soft: #0c1524;
    --surface: #101b2d;
    --text: #e8eef8;
    --muted: #9db0cc;
    --border: #1d2b42;
    --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --accent: #4c9bff;
  --accent-strong: #7ab4ff;
  --bg: #070d18;
  --bg-soft: #0c1524;
  --surface: #101b2d;
  --text: #e8eef8;
  --muted: #9db0cc;
  --border: #1d2b42;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  color-scheme: dark;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
  border-radius: 6px;
}

.container {
  width: min(1120px, 100% - 32px);
  margin-inline: auto;
}

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: 16px;
  top: 12px;
  z-index: 100;
  background: var(--surface);
  padding: 8px 12px;
}

/* ---------------------------------------------------------------- üst çubuk */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--navy) 82%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-header .container {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}

.brand:hover {
  text-decoration: none;
}

.brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.nav {
  display: flex;
  gap: 22px;
  margin-left: auto;
}

.nav a {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.95rem;
  font-weight: 500;
}

.nav a:hover {
  color: #fff;
  text-decoration: none;
}

.header-cta {
  margin-left: 8px;
}

@media (max-width: 760px) {
  .nav {
    display: none;
  }
  .header-cta {
    margin-left: auto;
  }
}

/* ---------------------------------------------------------------- düğmeler */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 650;
  font-size: 0.98rem;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--gold);
  color: #1a1300;
}

.btn-primary:hover {
  background: #ffd350;
}

.btn-ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
}

.btn-small {
  padding: 8px 14px;
  font-size: 0.9rem;
}

/* ---------------------------------------------------------------- kahraman bölüm */

.hero {
  position: relative;
  background: radial-gradient(1200px 600px at 85% -10%, #1e4f9b 0%, transparent 60%),
    linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff;
  overflow: hidden;
  padding: 72px 0 0;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 40px;
  align-items: end;
}

.hero-copy {
  padding-bottom: 96px;
  position: relative;
  z-index: 2;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 650;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(2.3rem, 5vw, 3.7rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0 0 20px;
}

.hero h1 em {
  font-style: normal;
  color: var(--gold);
}

.hero p.lead {
  font-size: 1.18rem;
  color: rgba(255, 255, 255, 0.8);
  max-width: 34em;
  margin: 0 0 30px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-note {
  margin-top: 22px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  min-height: 520px;
}

.hero-visual .phone {
  width: 270px;
  margin-bottom: -60px;
}

.hero-visual .phone.back {
  position: absolute;
  width: 240px;
  left: 4%;
  bottom: 40px;
  transform: rotate(-7deg);
  opacity: 0.92;
}

.hero-visual .phone.front {
  position: relative;
  z-index: 2;
  transform: translateX(46px);
}

.flight-path {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.flight-path path {
  stroke-dasharray: 2 14;
  animation: dash 40s linear infinite;
}

@keyframes dash {
  to {
    stroke-dashoffset: -800;
  }
}

@media (prefers-reduced-motion: reduce) {
  .flight-path path {
    animation: none;
  }
  html {
    scroll-behavior: auto;
  }
}

@media (max-width: 900px) {
  .hero {
    padding-top: 48px;
  }
  .hero .container {
    grid-template-columns: 1fr;
  }
  .hero-copy {
    padding-bottom: 8px;
  }
  .hero-visual {
    min-height: 430px;
  }
  .hero-visual .phone {
    width: 220px;
  }
  .hero-visual .phone.back {
    width: 190px;
    left: 8%;
  }
}

/* ---------------------------------------------------------------- telefon çerçevesi */

.phone {
  background: #0a0a0d;
  padding: 9px;
  border-radius: 46px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45), inset 0 0 0 2px #2a2a31;
}

.phone img {
  border-radius: 37px;
  width: 100%;
  height: auto;
  aspect-ratio: 640 / 1391;
  background: #dfe7f1;
}

/* ---------------------------------------------------------------- bölümler */

section {
  padding: 96px 0;
}

section.soft {
  background: var(--bg-soft);
}

.section-head {
  max-width: 700px;
  margin-bottom: 48px;
}

.section-head.center {
  margin-inline: auto;
  text-align: center;
}

.kicker {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 10px;
}

h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
}

h3 {
  font-size: 1.2rem;
  line-height: 1.3;
  margin: 0 0 8px;
}

.section-head p,
.muted {
  color: var(--muted);
}

/* adımlar */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  counter-reset: step;
}

.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  margin-bottom: 18px;
}

.step p {
  color: var(--muted);
  margin: 0;
}

/* özellikler */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
}

.feature .icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--accent);
  margin-bottom: 16px;
}

.feature .icon svg {
  width: 24px;
  height: 24px;
}

.feature p {
  color: var(--muted);
  margin: 0;
  font-size: 0.98rem;
}

@media (max-width: 900px) {
  .steps,
  .features {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 620px) {
  .steps,
  .features {
    grid-template-columns: 1fr;
  }
  section {
    padding: 72px 0;
  }
}

/* vitrin satırları */
.showcase {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 64px;
  align-items: center;
}

.showcase + .showcase {
  margin-top: 96px;
}

.showcase.reverse {
  grid-template-columns: 1fr 300px;
}

.showcase.reverse .phone {
  order: 2;
}

.showcase ul {
  padding: 0;
  margin: 18px 0 0;
  list-style: none;
}

.showcase li {
  position: relative;
  padding-left: 30px;
  margin: 10px 0;
  color: var(--muted);
}

.showcase li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  box-shadow: inset 0 0 0 5px var(--accent);
}

@media (max-width: 820px) {
  .showcase,
  .showcase.reverse {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .showcase .phone,
  .showcase.reverse .phone {
    order: -1;
    width: min(280px, 80%);
    margin-inline: auto;
  }
}

/* iniş sertliği ölçeği */
.grades {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  margin-top: 26px;
}

.grade {
  border-radius: 14px;
  padding: 14px 12px;
  text-align: center;
  background: color-mix(in srgb, var(--c) 12%, transparent);
  color: var(--c);
  font-weight: 700;
}

.grade small {
  display: block;
  font-weight: 600;
  opacity: 0.85;
  font-variant-numeric: tabular-nums;
}

@media (max-width: 620px) {
  .grades {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* platformlar ve fiyat */
.cards-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.cards-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  display: flex;
  flex-direction: column;
}

.card.featured {
  border: 2px solid var(--accent);
  box-shadow: var(--shadow);
}

.card .price {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 6px 0 2px;
}

.card ul {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
}

.card li {
  padding: 7px 0 7px 28px;
  position: relative;
  border-top: 1px solid var(--border);
}

.card li::before {
  content: "✓";
  position: absolute;
  left: 2px;
  color: var(--accent);
  font-weight: 800;
}

.badge {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--accent);
  margin-bottom: 12px;
}

.badge.soon {
  background: color-mix(in srgb, var(--orange) 16%, transparent);
  color: var(--orange);
}

.platform-icon {
  width: 40px;
  height: 40px;
  color: var(--accent);
  margin-bottom: 14px;
}

@media (max-width: 860px) {
  .cards-2,
  .cards-3 {
    grid-template-columns: 1fr;
  }
}

/* SSS */
.faq {
  max-width: 820px;
  margin-inline: auto;
}

.faq details {
  border-bottom: 1px solid var(--border);
  padding: 4px 0;
}

.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 36px 18px 0;
  font-weight: 650;
  font-size: 1.05rem;
  position: relative;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 12px;
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--muted);
  transition: transform 0.2s ease;
}

.faq details[open] summary::after {
  transform: rotate(45deg);
}

.faq details p {
  margin: 0 0 18px;
  color: var(--muted);
}

/* kapanış çağrısı */
.cta-band {
  background: linear-gradient(140deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff;
  text-align: center;
}

.cta-band p {
  color: rgba(255, 255, 255, 0.78);
  max-width: 36em;
  margin: 0 auto 28px;
}

/* ---------------------------------------------------------------- alt bilgi */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 44px 0 56px;
  font-size: 0.93rem;
  color: var(--muted);
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 40px;
  justify-content: space-between;
  align-items: flex-start;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
}

.site-footer a {
  color: var(--muted);
}

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

.fineprint {
  flex-basis: 100%;
  font-size: 0.82rem;
  opacity: 0.85;
}

/* ---------------------------------------------------------------- metin sayfaları */

.doc-hero {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff;
  padding: 64px 0 48px;
}

.doc-hero h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}

.doc-hero p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
}

.doc {
  max-width: 780px;
  margin-inline: auto;
  padding: 56px 0 88px;
}

.doc h2 {
  font-size: 1.45rem;
  margin: 44px 0 12px;
}

.doc h3 {
  margin-top: 26px;
}

.doc p,
.doc li {
  color: var(--text);
}

.doc ul {
  padding-left: 1.3em;
}

.doc li {
  margin: 6px 0;
}

.doc .note {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px 20px;
  color: var(--muted);
}

.doc table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 0.95rem;
}

.doc th,
.doc td {
  text-align: left;
  vertical-align: top;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

.doc th {
  color: var(--muted);
  font-weight: 650;
}

@media (max-width: 620px) {
  .doc table,
  .doc thead,
  .doc tbody,
  .doc tr,
  .doc th,
  .doc td {
    display: block;
  }
  .doc thead {
    display: none;
  }
  .doc td {
    border: none;
    padding: 4px 0;
  }
  .doc tr {
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
  }
  .doc td:first-child {
    font-weight: 650;
  }
}