/* ============================================================
   KALPTEN ORGANİZASYON - Tasarım Sistemi & Temel Stiller
   ============================================================ */

/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
  /* Ana Renkler */
  --color-navy-darkest: #060E1A;
  --color-navy-dark: #0A1628;
  --color-navy: #0F1E36;
  --color-navy-medium: #162A4A;
  --color-navy-light: #1E3A5F;
  --color-gold: #C9A84C;
  --color-gold-light: #D4B85A;
  --color-gold-lighter: #E2C97A;
  --color-gold-dark: #A88A3D;
  --color-gold-darker: #8B7232;

  /* Yardımcı Renkler */
  --color-cream: #FDF8F0;
  --color-cream-dark: #F5F0E8;
  --color-gray: #9CA3AF;
  --color-gray-light: #D1D5DB;
  --color-gray-dark: #6B7280;
  --color-white: #FFFFFF;
  --color-black: #000000;

  /* Fonksiyonel Renkler */
  --color-whatsapp: #25D366;
  --color-whatsapp-dark: #128C7E;
  --color-error: #DC2626;
  --color-success: #16A34A;
  --color-info: #3B82F6;
  --color-star: #F59E0B;

  /* Gradient'lar */
  --gradient-gold: linear-gradient(135deg, var(--color-gold-dark), var(--color-gold), var(--color-gold-light));
  --gradient-navy: linear-gradient(180deg, var(--color-navy-dark), var(--color-navy));
  --gradient-hero-overlay: linear-gradient(180deg, rgba(10,22,40,0.7) 0%, rgba(10,22,40,0.5) 40%, rgba(10,22,40,0.8) 100%);
  --gradient-card: linear-gradient(180deg, rgba(15,30,54,0.9) 0%, rgba(10,22,40,0.95) 100%);

  /* Tipografi */
  --font-heading: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-accent: 'Outfit', 'Inter', sans-serif;

  /* Font Boyutları */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  /* Satır Yükseklikleri */
  --leading-tight: 1.2;
  --leading-normal: 1.6;
  --leading-relaxed: 1.8;

  /* Boşluklar */
  --space-2xs: 0.125rem;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Layout */
  --container-max: 1280px;
  --container-narrow: 800px;
  --container-padding: 1.5rem;
  --section-padding: 5rem;

  /* Border */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 50px;
  --border-gold: 1px solid rgba(201, 168, 76, 0.25);
  --border-gold-strong: 1px solid rgba(201, 168, 76, 0.5);
  --border-navy: 1px solid rgba(30, 58, 95, 0.3);

  /* Gölgeler */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.18);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.25);
  --shadow-gold: 0 4px 24px rgba(201, 168, 76, 0.2);
  --shadow-gold-lg: 0 8px 40px rgba(201, 168, 76, 0.3);

  /* Geçişler */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Z-Index */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 500;
  --z-navbar: 1000;
  --z-mobile-bar: 999;
  --z-whatsapp: 998;
  --z-cookie: 1050;
  --z-lightbox: 1100;
  --z-modal: 1200;
  --z-toast: 1300;
}

/* ===== RESET / NORMALIZE ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-cream-dark);
  background-color: var(--color-navy-dark);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--color-gold);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover { color: var(--color-gold-light); }

a:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

ul, ol { list-style: none; }

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

::selection {
  background-color: var(--color-gold);
  color: var(--color-navy-dark);
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--color-navy-dark); }
::-webkit-scrollbar-thumb {
  background: var(--color-navy-medium);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--color-gold-dark); }

/* ===== TİPOGRAFİ ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-white);
  line-height: var(--leading-tight);
  font-weight: 700;
}

h1, .h1 { font-size: var(--text-5xl); letter-spacing: -0.02em; }
h2, .h2 { font-size: var(--text-4xl); letter-spacing: -0.01em; }
h3, .h3 { font-size: var(--text-2xl); }
h4, .h4 { font-size: var(--text-xl); }
h5, .h5 { font-size: var(--text-lg); }

p { margin-bottom: var(--space-md); }
p:last-child { margin-bottom: 0; }

.section-label {
  font-family: var(--font-accent);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-gold);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.section-label::before {
  content: '';
  display: inline-block;
  width: 32px;
  height: 2px;
  background: var(--gradient-gold);
  border-radius: var(--radius-full);
}

.section-title {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-lg);
  position: relative;
}

.section-title span {
  color: var(--color-gold);
}

.section-description {
  font-size: var(--text-lg);
  color: var(--color-gray);
  max-width: 640px;
  line-height: var(--leading-relaxed);
}

/* ===== LAYOUT ===== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  padding: var(--section-padding) 0;
  position: relative;
}

.section--navy { background-color: var(--color-navy); }
.section--dark { background-color: var(--color-navy-dark); }
.section--cream {
  background-color: var(--color-cream);
  color: var(--color-navy-dark);
}
.section--cream h2,
.section--cream h3,
.section--cream h4 { color: var(--color-navy-dark); }
.section--cream .section-description { color: var(--color-gray-dark); }
.section--cream .section-label::before { background: var(--color-gold-dark); }

.section--gradient {
  background: linear-gradient(180deg, var(--color-navy-dark) 0%, var(--color-navy) 50%, var(--color-navy-dark) 100%);
}

/* Gold accent divider */
.section-divider {
  width: 80px;
  height: 3px;
  background: var(--gradient-gold);
  border-radius: var(--radius-full);
  margin: var(--space-xl) auto;
}

/* Grid sistem */
.grid { display: grid; gap: var(--space-xl); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--6 { grid-template-columns: repeat(6, 1fr); }

/* Flex yardımcıları */
.flex { display: flex; }
.flex--center { align-items: center; justify-content: center; }
.flex--between { align-items: center; justify-content: space-between; }
.flex--column { flex-direction: column; }
.flex--wrap { flex-wrap: wrap; }
.flex--gap-sm { gap: var(--space-sm); }
.flex--gap-md { gap: var(--space-md); }
.flex--gap-lg { gap: var(--space-lg); }
.flex--gap-xl { gap: var(--space-xl); }

/* ===== UTILITY CLASSES ===== */
.text-gold { color: var(--color-gold); }
.text-white { color: var(--color-white); }
.text-cream { color: var(--color-cream); }
.text-gray { color: var(--color-gray); }
.text-navy { color: var(--color-navy-dark); }
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mx-auto { margin-left: auto; margin-right: auto; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

.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;
}

.hidden { display: none !important; }

/* ===== GLASSMORPHISM ===== */
.glass {
  background: rgba(15, 30, 54, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: var(--border-gold);
}

.glass--light {
  background: rgba(253, 248, 240, 0.08);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(253, 248, 240, 0.1);
}

/* ===== ANIMATION CLASSES ===== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-on-scroll.slide-left {
  transform: translateX(-30px);
}
.animate-on-scroll.slide-left.is-visible {
  transform: translateX(0);
}

.animate-on-scroll.slide-right {
  transform: translateX(30px);
}
.animate-on-scroll.slide-right.is-visible {
  transform: translateX(0);
}

.animate-on-scroll.scale-in {
  transform: scale(0.9);
}
.animate-on-scroll.scale-in.is-visible {
  transform: scale(1);
}

/* Stagger delay for children */
.stagger-children > .animate-on-scroll:nth-child(1) { transition-delay: 0.05s; }
.stagger-children > .animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.stagger-children > .animate-on-scroll:nth-child(3) { transition-delay: 0.15s; }
.stagger-children > .animate-on-scroll:nth-child(4) { transition-delay: 0.2s; }
.stagger-children > .animate-on-scroll:nth-child(5) { transition-delay: 0.25s; }
.stagger-children > .animate-on-scroll:nth-child(6) { transition-delay: 0.3s; }
.stagger-children > .animate-on-scroll:nth-child(7) { transition-delay: 0.35s; }
.stagger-children > .animate-on-scroll:nth-child(8) { transition-delay: 0.4s; }
.stagger-children > .animate-on-scroll:nth-child(9) { transition-delay: 0.45s; }
.stagger-children > .animate-on-scroll:nth-child(10) { transition-delay: 0.5s; }
.stagger-children > .animate-on-scroll:nth-child(11) { transition-delay: 0.55s; }
.stagger-children > .animate-on-scroll:nth-child(12) { transition-delay: 0.6s; }

/* Shimmer effect for gold elements */
@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

.gold-shimmer {
  background: linear-gradient(
    90deg,
    var(--color-gold-dark) 0%,
    var(--color-gold-lighter) 25%,
    var(--color-gold) 50%,
    var(--color-gold-lighter) 75%,
    var(--color-gold-dark) 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Pulse for WhatsApp */
@keyframes pulse-ring {
  0% { transform: scale(0.8); opacity: 1; }
  100% { transform: scale(1.5); opacity: 0; }
}

/* Fade in keyframe */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

/* Gold border glow */
@keyframes borderGlow {
  0%, 100% { border-color: rgba(201, 168, 76, 0.2); }
  50% { border-color: rgba(201, 168, 76, 0.5); }
}

/* Lazy loading placeholder */
.lazy-image {
  opacity: 1;
  transition: opacity var(--transition-slow);
}

.lazy-image.loaded {
  opacity: 1;
}

/* Demo badge */
.demo-badge {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  background: rgba(201, 168, 76, 0.9);
  color: var(--color-navy-dark);
  font-family: var(--font-accent);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  z-index: 2;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Page transition */
.page-content {
  animation: fadeIn 0.4s ease;
}