/*
  YDS365 Kelime Çalışması — tanıtım (landing) sayfası stilleri.
  Based on "flow" by uisual (https://github.com/uisual/freebies), MIT License,
  Copyright (c) 2020-present El Nino Hanif Maulana and Uisual.
  Yapı (header → hero → özellik kartları → kapanış → footer) ve responsive
  yaklaşım şablondan alınmıştır; renk, tipografi ve görseller YDS365 temasıdır.
*/

/*--------------------------------------------------------------
1.0 VARIABLE (uygulama temasıyla birebir aynı)
--------------------------------------------------------------*/

:root {
  --bg: #FBF7EE;
  --surface: #FFFFFF;
  --text: #1B2430;
  --text-muted: #6B7480;
  --primary: #0C8C8C;
  --primary-dark: #0A7373;
  --primary-soft: #E3F4F2;
  --cobalt: #14395B;
  --gold: #C6952E;
  --border: #E4DCC8;
  --success: #16A34A;
  --error: #C1272D;

  /* Sayfaya özel türetilmiş tokenlar (tema değerlerini değiştirmez) */
  --on-primary: #FFFFFF;          /* dolu turkuaz buton üstündeki metin */
  --link: var(--primary-dark);    /* açık zeminde turkuaz metin (≥ 4.5:1) */
  --on-gold: #1B2430;             /* "Yakında" etiketi metni */
  --on-cobalt: #FBF7EE;           /* kobalt blok üstündeki krem metin */
  --cobalt-accent: #5FE0E0;       /* kobalt blok üstündeki açık turkuaz vurgu */

  --font-heading: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;

  --h1: 2rem;
  --h2: 1.625rem;
  --h3: 1.1875rem;
  --p: 1rem;
  --s: .875rem;

  --container-pad: 1rem;   /* mobilde 16px yan boşluk */
  --gutter: 1rem;
  --radius-button: 999px;
  --radius-card: 1rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0F1A24;
    --surface: #16242F;
    --text: #F1EDE3;
    --text-muted: #9AA5AE;
    --primary: #2BB5B5;
    --primary-dark: #22A0A0;
    --primary-soft: #133236;
    --cobalt: #0B2238;
    --gold: #D8A941;
    --border: #2A3A47;

    --on-primary: #0F1A24;        /* açık turkuaz üstünde koyu metin */
    --link: var(--primary);
  }
}

/*--------------------------------------------------------------
2.0 FOUNDATION
--------------------------------------------------------------*/

html { box-sizing: border-box; -webkit-text-size-adjust: 100%; }

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

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--p);
  font-weight: 400;
  line-height: 1.6;
  margin: 0;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

/* İznik lale deseni: rengi soldurulmuş, çok düşük opaklıkta bir filigran; içeriğin önüne geçmez. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: url("/img/pattern.jpg") center / cover no-repeat;
  filter: grayscale(1) sepia(0.5);
  opacity: var(--pattern-opacity);
}

:root { --pattern-opacity: 0.06; }

@media (prefers-color-scheme: dark) {
  :root { --pattern-opacity: 0.04; }
}

/*--------------------------------------------------------------
3.0 TYPOGRAPHY
--------------------------------------------------------------*/

a { color: var(--link); }

h1, h2, h3, p { margin-top: 0; }

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: -.01em;
  margin-bottom: .75rem;
}

h1 { font-size: var(--h1); line-height: 1.15; }
h2 { font-size: var(--h2); line-height: 1.2; }
h3 { font-size: var(--h3); line-height: 1.3; }

p { margin-bottom: 1.125rem; }
p:last-child { margin-bottom: 0; }

small { font-size: var(--s); }

.ui-text-intro { font-size: 1.0625rem; }

.ui-text-accent { color: var(--link); }

.ui-text-note {
  color: var(--text);
  line-height: 1.5;
  margin-top: .875rem;
}
.ui-text-note[hidden] { display: none; }

svg { display: block; flex-shrink: 0; }

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 10;
  background: var(--surface);
  color: var(--text);
  padding: .75rem 1rem;
  border-radius: .5rem;
  font-weight: 700;
}
.skip-link:focus { top: 1rem; }

/*--------------------------------------------------------------
4.0 LAYOUT
--------------------------------------------------------------*/

.ui-layout-container {
  margin-left: auto;
  margin-right: auto;
  max-width: 70rem;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
  width: 100%;
}

.ui-layout-flex { display: flex; align-items: center; }

.ui-layout-grid { display: grid; gap: var(--gutter); }

/*--------------------------------------------------------------
5.0 COMPONENT
--------------------------------------------------------------*/

/* 5.1 KILIM ŞERİDİ */

/* Lale + dama bordürü: aynalanmış karo, yatayda kesintisiz tekrar eder. */
.kilim {
  height: 56px;
  background: #1A262E url("/img/lale-border.jpg") repeat-x left center / auto 100%;
}

/* 5.2 CTA */

.ui-component-cta {
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

.store-wrap {
  position: relative;
  display: flex;
}

/* 5.3 BUTTON */

.ui-component-button {
  align-items: center;
  border: 2px solid transparent;
  border-radius: var(--radius-button);
  column-gap: .5rem;
  cursor: pointer;
  display: inline-flex;
  font-family: var(--font-body);
  /* 19px + 700: WCAG "büyük metin" — turkuaz zeminde beyaz metin için */
  font-size: 1.1875rem;
  font-weight: 700;
  justify-content: center;
  line-height: 1.2;
  min-height: 3.25rem;
  padding: .75rem 1.5rem;
  text-align: center;
  text-decoration: none;
  transition: background-color 200ms ease, border-color 200ms ease, color 200ms ease;
  width: 100%;
}

.ui-component-button-primary {
  background-color: var(--primary);
  color: var(--on-primary);
}
.ui-component-button-primary:hover { background-color: var(--primary-dark); }

.ui-component-button-outline {
  background-color: transparent;
  border-color: var(--text);
  color: var(--text);
}
.ui-component-button-outline:hover { background-color: var(--primary-soft); }

.ui-component-button[aria-disabled="true"] {
  border-style: dashed;
  cursor: not-allowed;
}
.ui-component-button[aria-disabled="true"]:hover { background-color: transparent; }

.ui-component-button-small {
  font-size: 1rem;
  min-height: 2.75rem;
  padding: .5rem 1rem;
  white-space: nowrap;
  width: auto;
}

/* "Yakında" etiketi */
.soon-badge {
  background-color: var(--gold);
  border-radius: 999px;
  color: var(--on-gold);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .04em;
  line-height: 1;
  padding: .3rem .6rem;
  position: absolute;
  right: 1rem;
  text-transform: uppercase;
  top: -.6rem;
}
.soon-badge[hidden] { display: none; }

/* 5.4 CARD */

.ui-component-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 1.5rem;
}

.ui-component-card h3 { margin-bottom: .5rem; }

.ui-component-card p { color: var(--text-muted); margin-bottom: 0; }

.card-icon {
  align-items: center;
  background-color: var(--primary-soft);
  border-radius: .75rem;
  color: var(--link);
  display: flex;
  height: 3rem;
  justify-content: center;
  margin-bottom: 1rem;
  width: 3rem;
}
.card-icon svg { height: 1.5rem; width: 1.5rem; }

/*--------------------------------------------------------------
6.0 SECTION
--------------------------------------------------------------*/

/* 6.1 HEADER */

.ui-section-header {
  padding-bottom: 1rem;
  padding-top: 1rem;
}

.ui-section-header__layout {
  gap: .75rem;
  justify-content: space-between;
}

.brand {
  align-items: center;
  color: var(--text);
  display: inline-flex;
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  font-weight: 600;
  gap: .5rem;
  line-height: 1.2;
  min-height: 2.75rem;
  min-width: 0;
  text-decoration: none;
}
.brand-logo { color: var(--primary); height: 1.75rem; width: 1.75rem; }

.app-icon {
  border-radius: 22%;
  display: block;
  flex-shrink: 0;
  height: 2.25rem;
  object-fit: cover;
  width: 2.25rem;
}

/* 6.2 HERO */

.ui-section-hero {
  padding-bottom: 3.5rem;
  padding-top: 2rem;
}

.ui-section-hero__layout {
  align-items: center;
  display: grid;
  gap: 2.5rem;
}

.hero-eyebrow {
  color: var(--link);
  font-size: var(--s);
  font-weight: 700;
  letter-spacing: .08em;
  margin-bottom: .75rem;
  text-transform: uppercase;
}

.ui-section-hero .ui-component-cta { margin-top: 1.75rem; }

/* 6.3 TELEFON MOCKUP (dekoratif) */

.phone {
  background-color: var(--cobalt);
  border-radius: 2.25rem;
  box-shadow: 0 1.25rem 2.5rem rgba(20, 57, 91, .18);
  margin: 0 auto;
  max-width: 17.5rem;
  padding: .75rem;
  width: 100%;
}

.phone-screen {
  background-color: var(--bg);
  border-radius: 1.625rem;
  overflow: hidden;
  padding: 1.75rem 1rem 1.25rem;
  position: relative;
}

.phone-screen::before {
  background-color: var(--cobalt);
  border-radius: 999px;
  content: "";
  height: .375rem;
  left: 50%;
  position: absolute;
  top: .625rem;
  transform: translateX(-50%);
  width: 4rem;
}

.phone-bar {
  align-items: center;
  display: flex;
  font-size: .75rem;
  font-weight: 700;
  justify-content: space-between;
  margin-bottom: .75rem;
}
.phone-bar .brand-logo { height: 1.125rem; width: 1.125rem; }
.phone-bar .app-icon { border-radius: 5px; height: 1.375rem; width: 1.375rem; }

.phone .kilim { height: 22px; margin: 0 -1rem .875rem; }

.mock-card {
  align-items: center;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  display: flex;
  flex-direction: column;
  gap: .375rem;
  padding: 1.75rem .75rem;
  text-align: center;
}

.mock-word {
  font-family: var(--font-heading);
  font-size: 1.875rem;
  font-weight: 600;
  line-height: 1.1;
}

.mock-pos {
  color: var(--text-muted);
  font-size: .8125rem;
  font-style: italic;
}

.mock-badges {
  display: flex;
  flex-wrap: wrap;
  gap: .375rem;
  justify-content: center;
  margin-top: .5rem;
}

.mock-badge {
  background-color: var(--primary-soft);
  border-radius: 999px;
  color: var(--text);
  font-size: .6875rem;
  font-weight: 600;
  padding: .25rem .5rem;
}
.mock-badge--gold { border: 1px solid var(--gold); background-color: transparent; }

.mock-hint {
  color: var(--text-muted);
  font-size: .6875rem;
  margin: .625rem 0;
  text-align: center;
}

.mock-actions {
  display: grid;
  gap: .5rem;
  grid-template-columns: 1fr 1fr;
}

.mock-btn {
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 700;
  padding: .5rem .25rem;
  text-align: center;
}
.mock-btn--ghost { border: 1px solid var(--border); background-color: var(--surface); }
.mock-btn--primary { background-color: var(--primary); color: var(--on-primary); }

/* 6.4 FEATURE */

.ui-section-feature {
  padding-bottom: 3.5rem;
  padding-top: 3rem;
}

.section-head {
  margin: 0 auto 2rem;
  max-width: 40rem;
  text-align: center;
}

/* 6.5 CLOSE (kobalt / İznik bloğu) */

.ui-section-close {
  padding-bottom: 3.5rem;
  padding-top: 1rem;
}

.close-block {
  background-color: var(--cobalt);
  border-radius: 1.5rem;
  color: var(--on-cobalt);
  overflow: hidden;
  text-align: center;
}

.close-block .kilim { height: 44px; }

.close-block__inner {
  margin: 0 auto;
  max-width: 42rem;
  padding: 2.5rem 1.25rem 2.75rem;
}

.close-block .brand-logo {
  color: var(--cobalt-accent);
  height: 3rem;
  margin: 0 auto 1rem;
  width: 3rem;
}

.close-block .app-icon {
  box-shadow: 0 18px 36px -18px rgba(0, 0, 0, .6), 0 0 0 1px rgba(216, 169, 65, .45);
  height: 7rem;
  margin: 0 auto 1.25rem;
  width: 7rem;
}

.close-block h2 { color: var(--on-cobalt); }
.close-block .ui-text-accent { color: var(--cobalt-accent); }
.close-block p { color: var(--on-cobalt); }

.close-block .ui-component-cta { margin-top: 1.75rem; }

.close-block .ui-component-button-outline {
  border-color: var(--on-cobalt);
  color: var(--on-cobalt);
}
.close-block .ui-component-button-outline:hover { background-color: rgba(255, 255, 255, .08); }
.close-block .ui-component-button-outline[aria-disabled="true"]:hover { background-color: transparent; }

.close-block :focus-visible { outline-color: var(--cobalt-accent); }

/* 6.6 FOOTER */

.ui-section-footer {
  border-top: 1px solid var(--border);
  padding-bottom: 1.5rem;
  padding-top: 1.5rem;
}

.ui-section-footer__layout {
  flex-wrap: wrap;
  gap: .5rem 1.5rem;
  justify-content: space-between;
}

.ui-section-footer p { margin: 0; }

.ui-section-footer a {
  align-items: center;
  display: inline-flex;
  font-weight: 600;
  min-height: 2.75rem;
}

/*--------------------------------------------------------------
7.0 MEDIA
--------------------------------------------------------------*/

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}

/* 7.1 600PX */

@media screen and (min-width: 37.5rem) {
  :root {
    --container-pad: 1.5rem;
    --gutter: 1.25rem;
  }

  .ui-component-cta { flex-direction: row; flex-wrap: wrap; }
  .ui-component-cta .ui-component-button,
  .ui-component-cta .store-wrap { width: auto; }
  .ui-component-cta .store-wrap .ui-component-button { width: 100%; }

  .ui-layout-grid-3 { grid-template-columns: repeat(2, 1fr); }

  .close-block .ui-component-cta { justify-content: center; }
}

/* 7.2 900PX */

@media screen and (min-width: 56.25rem) {
  :root {
    --h1: 2.875rem;
    --h2: 2.125rem;
    --h3: 1.3125rem;
    --p: 1.0625rem;
    --container-pad: 2rem;
    --gutter: 1.5rem;
  }

  .ui-text-intro { font-size: 1.1875rem; }

  .brand { font-size: 1.1875rem; }

  .ui-section-hero { padding-bottom: 5rem; padding-top: 3.5rem; }

  .ui-section-hero__layout {
    gap: 3rem;
    grid-template-columns: 1.15fr 1fr;
  }

  .phone { max-width: 19rem; }

  .ui-layout-grid-3 { grid-template-columns: repeat(3, 1fr); }

  .ui-section-feature { padding-bottom: 5rem; padding-top: 4.5rem; }

  .ui-component-card { padding: 1.75rem; }

  .ui-section-close { padding-bottom: 5rem; }

  .close-block__inner { padding: 3.5rem 2rem 4rem; }
}

/* 7.3 1200PX */

@media screen and (min-width: 75rem) {
  :root {
    --h1: 3.25rem;
    --h2: 2.375rem;
  }
}