/* ==========================================================================
   Kılkışlı İnşaat — Design System v4 · WHITE THEME
   Aesthetic: Art Deco Luxe — beyaz zemin + koyu yeşil "chrome" + pirinç altın
   Not: Yeşil marka kimliği korunur; içerik/kart yüzeyleri beyaz, metin koyu.
   Header, hero (görsel üstü), footer, CTA, çerez barı, mobil dock koyu kalır.
   ========================================================================== */

:root {
  /* ── Koyu yeşil marka rampası — KORUNUR (chrome, buton metni, kontrast) ── */
  --emerald: #0c2c25;
  --emerald-deep: #081f1a;
  /* --emerald-2 / --emerald-3: eskiden koyu yüzeydi → beyaz temada AÇIK yüzey */
  --emerald-2: #ffffff;        /* kart / yüzey (beyaz) */
  --emerald-3: #f1f4f1;        /* hafif yeşilimsi açık yüzey */
  /* --cream: eskiden koyu üstü açık metindi → beyaz temada KOYU metin
     (görsel üstü kalan birkaç yer -white dosyalarında literal ile geçersiz kılınır) */
  --cream: #16261f;
  --cream-2: #ece0c9;
  --gold: #c8a45e;
  --gold-2: #bb9648;           /* orta brass — hem koyu chrome hem beyaz üstünde okunur */
  --gold-deep: #8f6f34;
  --muted-d: #9fb3a8;          /* koyu chrome üstünde açık silik metin (korunur) */

  /* ── Semantic tokens ── */
  --color-primary: #103a30;
  --color-primary-light: #18564a;
  --color-primary-dark: #081f1a;
  --color-primary-muted: rgba(16, 58, 48, 0.08);
  --color-secondary: #0a2620;  /* KOYU — footer / cta / nav-mobile / hero zemini */
  --color-secondary-light: #103a30;
  --color-accent: #c8a45e;
  --color-accent-light: #ddbd7c;
  --color-accent-dark: #a07f3f;
  --color-accent-muted: rgba(200, 164, 94, 0.16);
  --color-white: #ffffff;      /* gerçek beyaz — görsel/koyu üstü metin */
  --color-off-white: #ffffff;  /* açık yüzey / alt bölüm zemini */
  --color-cream: #e7ece7;      /* açık görsel placeholder zemini */
  --color-surface: #ffffff;
  --color-gray-100: #eef1ee;
  --color-gray-200: #b9c6bd;   /* koyu footer/çerez üstünde açık metin (korunur) */
  --color-gray-300: #7a8c81;   /* orta ton — hem koyu chrome hem beyaz üstünde okunur */
  --color-gray-400: #a07f3f;   /* form etiketi — beyaz üstünde altın */
  --color-text: #1e2f28;       /* ana koyu metin */
  --color-text-muted: #5f6f67; /* silik koyu metin */
  --color-border: rgba(16, 45, 38, 0.12);
  --color-error: #c0523c;
  --color-success: #2f7d5b;

  /* ── Typography ── */
  --font-display: "Cinzel", "Georgia", serif;
  --font-body: "Jost", system-ui, "Helvetica Neue", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  --font-size-xs: 0.875rem;     /* 14px */
  --font-size-sm: 1rem;         /* 16px */
  --font-size-base: 1.125rem;   /* 18px */
  --font-size-lg: 1.25rem;      /* 20px */
  --font-size-xl: 1.5rem;       /* 24px */
  --font-size-2xl: 1.875rem;    /* 30px */
  --font-size-3xl: 2.375rem;    /* 38px */
  --font-size-4xl: 3.125rem;    /* 50px */
  --font-size-5xl: 3.75rem;     /* 60px */
  --font-size-hero: clamp(2.9rem, 6vw, 5.2rem);

  --line-height-tight: 1.15;
  --line-height-snug: 1.35;
  --line-height-normal: 1.65;
  --line-height-relaxed: 1.8;

  --letter-spacing-tight: -0.025em;
  --letter-spacing-normal: -0.01em;
  --letter-spacing-wide: 0.08em;
  --letter-spacing-ultra: 0.14em;

  /* ── Spacing (4px base, expanded) ── */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --section-padding-y: clamp(4.5rem, 8.5vw, 8rem);
  --section-padding-x: clamp(1.25rem, 4vw, 3rem);
  --container-max: 1360px;

  /* ── Layout ── */
  --header-height: 100px;
  /* Art deco — köşeler hafif (2px); kemerli çerçeveler .arch utility ile; --radius-full dairesel kontroller için */
  --radius-xs: 2px;
  --radius-sm: 2px;
  --radius-md: 2px;
  --radius-lg: 3px;
  --radius-xl: 4px;
  --radius-full: 9999px;

  /* ── Shadows (deep, on emerald) ── */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.18);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.28), 0 1px 2px rgba(0, 0, 0, 0.22);
  --shadow-md: 0 6px 14px -4px rgba(0, 0, 0, 0.40), 0 2px 6px -2px rgba(0, 0, 0, 0.30);
  --shadow-lg: 0 16px 34px -14px rgba(0, 0, 0, 0.55), 0 6px 12px -8px rgba(0, 0, 0, 0.40);
  --shadow-xl: 0 30px 60px -24px rgba(0, 0, 0, 0.70), 0 10px 22px -12px rgba(0, 0, 0, 0.45);
  --shadow-2xl: 0 44px 90px -30px rgba(0, 0, 0, 0.80);
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.30);
  --shadow-accent: 0 6px 22px -6px rgba(200, 164, 94, 0.45);

  /* ── Transitions ── */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quint: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-fast: 150ms var(--ease-out-expo);
  --transition-base: 300ms var(--ease-out-expo);
  --transition-slow: 500ms var(--ease-out-expo);
  --transition-slower: 700ms var(--ease-out-quint);
}

/* ═══════════════════════════════════════════
   BASE RESET & DEFAULTS
   ═══════════════════════════════════════════ */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  font-weight: 300;
  line-height: var(--line-height-normal);
  letter-spacing: var(--letter-spacing-normal);
  color: var(--color-text);
  background-color: #f6f8f6;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

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

/* ── Selection ── */
::selection {
  background-color: var(--gold);
  color: var(--emerald);
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: #e6eae6;
}

::-webkit-scrollbar-thumb {
  background: var(--gold);
  border-radius: var(--radius-full);
  border: 3px solid #e6eae6;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gold-deep);
}

* {
  scrollbar-width: thin;
  scrollbar-color: var(--gold) #e6eae6;
}

/* ═══════════════════════════════════════════
   TYPOGRAPHY
   ═══════════════════════════════════════════ */

.page-title {
  font-family: var(--font-display);
  font-size: var(--font-size-4xl);
  font-weight: 500;
  line-height: var(--line-height-tight);
  letter-spacing: 0.01em;
  color: var(--cream);
  margin: 0;
}

@media (min-width: 768px) {
  .page-title { font-size: clamp(2.75rem, 4.5vw, 3.75rem); }
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--font-size-2xl);
  font-weight: 500;
  line-height: var(--line-height-snug);
  color: var(--cream);
  margin: 0;
}

@media (min-width: 768px) {
  .section-title { font-size: clamp(1.75rem, 3vw, 2.5rem); }
}

/* Decorative label — small caps, tracked */
.label-accent {
  font-family: var(--font-body);
  font-size: var(--font-size-xs);
  font-weight: 500;
  letter-spacing: var(--letter-spacing-ultra);
  text-transform: uppercase;
  color: var(--gold-2);
}

.text-muted { color: var(--color-text-muted); }
.text-accent { color: var(--gold-2); }
.text-primary { color: var(--gold-2); }

/* ═══════════════════════════════════════════
   LAYOUT
   ═══════════════════════════════════════════ */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--section-padding-x);
  padding-right: var(--section-padding-x);
}

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

/* ═══════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.9rem 2.1rem;
  font-family: var(--font-body);
  font-size: var(--font-size-xs);
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 0;
  cursor: pointer;
  position: relative;
  transition:
    background-color var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base),
    transform var(--transition-fast);
}

/* Keskin bakır alt-çizgi — hover'da soldan açılır (mimari detay) */
.btn::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--transition-base);
  pointer-events: none;
}

.btn:hover::after {
  transform: scaleX(1);
}

.btn:active {
  transform: translateY(1px);
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Art deco — pirinç altın dolgu (loud) ve altın çizgi (quiet) iki temel varyant */
.btn--primary,
.btn--accent {
  background-color: var(--gold);
  color: var(--emerald);
}

.btn--primary:hover,
.btn--accent:hover {
  background-color: var(--gold-2);
  color: var(--emerald);
}

/* Altın zeminde altın çizgi görünmez — zümrüt çizgi kullan */
.btn--primary::after,
.btn--accent::after {
  background: var(--emerald);
}

/* Beyaz temada bu buton yalnızca açık CTA bandında kullanılıyor — koyu metin */
.btn--outline-light {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid rgba(160, 127, 63, 0.6);
}

.btn--outline-light:hover {
  background-color: transparent;
  color: var(--gold-deep);
  border-color: var(--gold);
}

/* Beyaz zemin için — metin koyu */
.btn--outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid rgba(160, 127, 63, 0.6);
}

.btn--outline:hover {
  background-color: transparent;
  color: var(--gold-deep);
  border-color: var(--gold);
}

.btn--sm {
  padding: 0.55rem 1.35rem;
  font-size: var(--font-size-xs);
}

.btn--lg {
  padding: 1.05rem 2.6rem;
  font-size: var(--font-size-sm);
}

/* ═══════════════════════════════════════════
   CARDS
   ═══════════════════════════════════════════ */

.card {
  position: relative;
  background: var(--emerald-2);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition:
    box-shadow var(--transition-slow),
    transform var(--transition-slow),
    border-color var(--transition-base);
}

/* Bakır üst kenar — hover'da soldan açılır (kart imzası) */
.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--transition-base);
  z-index: 4;
}

.card:hover::before {
  transform: scaleX(1);
}

.card:hover {
  box-shadow: var(--shadow-xl);
  border-color: rgba(200, 164, 94, 0.5);
}

.card__image {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  display: block;
}

.card__body {
  padding: var(--space-6) var(--space-6) var(--space-8);
}

.card__title {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: 400;
  margin: 0 0 var(--space-2);
  color: var(--color-secondary);
  line-height: var(--line-height-snug);
}

.card__meta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-xs);
  font-weight: 500;
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  color: var(--color-accent-dark);
  margin-bottom: var(--space-4);
}

.card__meta::before {
  content: "";
  width: 14px;
  height: 1px;
  background: var(--color-accent);
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════
   FORMS
   ═══════════════════════════════════════════ */

.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--font-size-xs);
  font-weight: 500;
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  color: var(--color-gray-400);
  margin-bottom: var(--space-2);
}

.form-control {
  width: 100%;
  padding: 0.875rem var(--space-4);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  font-weight: 300;
  line-height: 1.5;
  color: var(--color-text);
  background: #ffffff;
  border: 1px solid rgba(16, 45, 38, 0.2);
  border-radius: var(--radius-md);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-fast);
  box-sizing: border-box;
  -webkit-appearance: none;
}

.form-control:hover {
  border-color: rgba(16, 45, 38, 0.35);
}

.form-control:focus {
  border-color: var(--gold);
  outline: none;
  box-shadow: 0 0 0 3px rgba(200, 164, 94, 0.22);
  background-color: #ffffff;
}

.form-control::placeholder {
  color: #9aa8a0;
  font-weight: 300;
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

select.form-control {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23c8a45e' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

select.form-control option {
  background: var(--emerald-2);
  color: var(--cream);
}

.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.form-check__input {
  width: 1.125rem;
  height: 1.125rem;
  margin-top: 3px;
  accent-color: var(--gold);
  flex-shrink: 0;
  cursor: pointer;
}

.form-check__label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
}

.form-check__label a {
  color: var(--gold-2);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.form-check__label a:hover {
  color: var(--gold);
}

.field-validation-error {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-error);
  margin-top: var(--space-1);
  font-weight: 500;
}

.input-validation-error {
  border-color: var(--color-error) !important;
}

/* ═══════════════════════════════════════════
   UTILITY CLASSES
   ═══════════════════════════════════════════ */

.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;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.d-flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.align-items-center { align-items: center; }
.justify-content-between { justify-content: space-between; }

/* ── Grid system ── */
.grid {
  display: grid;
  gap: var(--space-8);
}

@media (min-width: 640px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

/* ── Decorative gold rule ── */
.rule-accent {
  width: 48px;
  height: 2px;
  background: var(--color-accent);
  border: none;
  margin: var(--space-4) auto var(--space-6);
}

.rule-accent--left {
  margin-left: 0;
  margin-right: auto;
}

/* ═══════════════════════════════════════════
   ART DECO UTILITIES
   Kemerli çerçeveler · deco çizgiler · roma rakamlı kicker
   ═══════════════════════════════════════════ */

.ital { font-style: italic; }

/* Kemerli (arch) görsel çerçevesi — art deco imzası */
.arch {
  position: relative;
  overflow: hidden;
  border-radius: 50% 50% 4px 4px / 22% 22% 3px 3px;
  border: 1px solid rgba(200, 164, 94, 0.4);
}

.arch--soft { border-radius: 50% 50% 4px 4px / 16% 16% 3px 3px; }
.arch--tall { border-radius: 50% 50% 6px 6px / 28% 28% 4px 4px; }

/* Roma rakamlı / küçük-caps altın etiket */
.kicker {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold-2);
}

/* Dekoratif altın çizgi (gerekirse sparkle ikonuyla) */
.deco-rule {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 18px 0;
  color: var(--gold);
}
.deco-rule i {
  height: 1px;
  width: 60px;
  background: linear-gradient(90deg, transparent, var(--gold));
}
.deco-rule i:last-child {
  background: linear-gradient(90deg, var(--gold), transparent);
}
.deco-rule--center { justify-content: center; }
.deco-rule--center i { width: 70px; }
.deco-rule svg, .deco-rule .ic { color: var(--gold); }

/* İnce dikdörtgen deco çerçeve + köşe vurguları (hero / CTA) */
.deco-frame {
  position: absolute;
  inset: 22px;
  z-index: 2;
  border: 1px solid rgba(200, 164, 94, 0.3);
  pointer-events: none;
}
.deco-frame::before,
.deco-frame::after {
  content: "";
  position: absolute;
  width: 26px;
  height: 26px;
  border: 2px solid var(--gold);
}
.deco-frame::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.deco-frame::after { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

.deco-corner {
  position: absolute;
  width: 120px;
  height: 120px;
  border: 2px solid rgba(200, 164, 94, 0.4);
  pointer-events: none;
}
.deco-corner--tl { top: 30px; left: 30px; border-right: 0; border-bottom: 0; }
.deco-corner--br { bottom: 30px; right: 30px; border-left: 0; border-top: 0; }

@media (max-width: 520px) {
  .deco-frame { inset: 14px; }
  .deco-corner { width: 70px; height: 70px; }
}

/* ═══════════════════════════════════════════
   ULTRA-WIDE — geniş ekranlarda container + tipografi büyür
   Tokenlar burada yeniden tanımlandığı için tüm site otomatik ölçeklenir
   ═══════════════════════════════════════════ */
@media (min-width: 1700px) {
  :root {
    --container-max: 1520px;
    --font-size-base: 1.1875rem; /* 19px */
    --font-size-lg: 1.3125rem;   /* 21px */
    --font-size-sm: 1.0625rem;   /* 17px */
  }
}
@media (min-width: 2200px) {
  :root {
    --container-max: 1760px;
    --font-size-base: 1.25rem;   /* 20px */
    --font-size-lg: 1.4375rem;   /* 23px */
    --font-size-sm: 1.125rem;    /* 18px */
    --font-size-xl: 1.625rem;
    --font-size-2xl: 2rem;
  }
}
@media (min-width: 2900px) {
  :root {
    --container-max: 2100px;
    --font-size-base: 1.375rem;  /* 22px */
    --font-size-lg: 1.5625rem;   /* 25px */
    --font-size-sm: 1.1875rem;
  }
}