/* ============================================================
   Urbanframe Studio — main.css
   Design tokens, CSS variables, reset, global stiller
   ============================================================ */

/* ── Google Fonts — preconnect + link HTML'de tanımlı, burada import yok ── */

/* ── Dirty Bleed Display — lokal font (TR karakter destekli) ── */
@font-face {
  font-family: 'Dirty Bleed Display';
  src: url('/assets/fonts/DirtyBleedDisplay-TR.otf') format('opentype');
  font-weight: 900;
  font-style: normal;
  font-display: swap;
}

/* ── CSS Değişkenleri ── */
:root {
  /* Renkler */
  --color-black:      #0a0a0a;
  --color-red:        #8C0F1A;
  --color-red-dark:   #6b0b13;
  --color-white-tech: #F5F5F5;
  --color-white:      #FFFFFF;

  /* Metin renkleri */
  --color-text-primary:   var(--color-white);
  --color-text-secondary: rgba(255,255,255,0.6);
  --color-text-muted:     rgba(255,255,255,0.35);

  /* Fontlar */
  --font-display:  'Dirty Bleed Display', sans-serif;
  --font-heading:  'Dirty Bleed Display', sans-serif;
  --font-body:     'Inter', sans-serif;
  --font-caption:  'Inter', sans-serif;

  /* Font boyutları */
  --fs-hero:   clamp(3rem, 10vw, 9rem);
  --fs-h1:     clamp(2.5rem, 5vw, 4.5rem);
  --fs-h2:     clamp(1.75rem, 3.5vw, 3rem);
  --fs-h3:     clamp(1.25rem, 2.5vw, 2rem);
  --fs-h4:     clamp(1.1rem, 1.8vw, 1.5rem);
  --fs-body:   1rem;
  --fs-small:  0.875rem;
  --fs-caption: 0.75rem;

  /* Spacing */
  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  2rem;
  --space-lg:  4rem;
  --space-xl:  8rem;
  --space-xxl: 12rem;

  /* Transitions */
  --transition-fast:   150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow:   600ms ease;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  /* Max genişlik */
  --container-max: 1400px;
  --container-pad: clamp(1.5rem, 5vw, 5rem);

  /* Navbar yüksekliği */
  --navbar-height: 80px;
}

/* ── Reset ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: auto;
  scroll-padding-top: calc(var(--navbar-height) + 1.5rem);
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  background-color: var(--color-black);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Sticky Reveal — main içerik footer'ın üstünde kayar ── */
main {
  position: relative;
  z-index: 1;
  background: var(--color-black);
  /* Alt köşeler yuvarlak = footer açılırken "peel" efekti */
  border-radius: 0 0 2rem 2rem;
  /* Hafif gölge: main sayfanın önde olduğunu hissettirir */
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.7);
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* ── Tipografi ── */
h1, .h1 {
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  line-height: 1.05;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin-bottom: 0.5em;
}

h2, .h2 {
  font-family: var(--font-heading);
  font-size: var(--fs-h2);
  line-height: 1.1;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  margin-bottom: 0.5em;
}

h3, .h3 {
  font-family: var(--font-heading);
  font-size: var(--fs-h3);
  line-height: 1.2;
  font-weight: 700;
  margin-bottom: 0.4em;
}

h4, .h4 {
  font-family: var(--font-body);
  font-size: var(--fs-h4);
  font-weight: 600;
  margin-bottom: 0.35em;
}

p {
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: 1.25rem;
}

small, .caption {
  font-family: var(--font-caption);
  font-size: var(--fs-caption);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* ── Yardımcı Sınıflar ── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.section {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
}

.text-red    { color: var(--color-red); }
.text-white  { color: var(--color-white); }
.text-muted  { color: var(--color-text-muted); }
.text-upper  { text-transform: uppercase; }
.text-center { text-align: center; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ── Animasyon sınıfları ── */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-animate="fade"] {
  transform: none;
}

[data-animate="slide-left"] {
  transform: translateX(-40px);
}

[data-animate="slide-left"].is-visible {
  transform: translateX(0);
}

[data-animate="slide-right"] {
  transform: translateX(40px);
}

[data-animate="slide-right"].is-visible {
  transform: translateX(0);
}

/* Gecikme sınıfları */
[data-delay="1"] { transition-delay: 100ms; }
[data-delay="2"] { transition-delay: 200ms; }
[data-delay="3"] { transition-delay: 300ms; }
[data-delay="4"] { transition-delay: 400ms; }
[data-delay="5"] { transition-delay: 500ms; }

/* ── Scrollbar ── */
::-webkit-scrollbar {
  width: 4px;
}
::-webkit-scrollbar-track {
  background: var(--color-black);
}
::-webkit-scrollbar-thumb {
  background: var(--color-red);
  border-radius: 2px;
}

/* ── Seçim rengi ── */
::selection {
  background: var(--color-red);
  color: var(--color-white);
}