@import 'tailwindcss';
@plugin "@tailwindcss/typography";

/* ═══════════════════════════════════════════════════════
   Tailwind v4 @theme — generates utility classes from tokens
   bg-brand-*, text-accent-*, shadow-elevation-*, etc.
   ═══════════════════════════════════════════════════════ */
@theme {
  /* Brand — warm slate */
  --color-brand-50:  #f8fafc;
  --color-brand-100: #f1f5f9;
  --color-brand-200: #e2e8f0;
  --color-brand-300: #cbd5e1;
  --color-brand-400: #94a3b8;
  --color-brand-500: #64748b;
  --color-brand-600: #475569;
  --color-brand-700: #334155;
  --color-brand-800: #1e293b;
  --color-brand-900: #0f172a;
  --color-brand-950: #020617;

  /* Accent — amber gold */
  --color-accent-50:  #fffbeb;
  --color-accent-100: #fef3c7;
  --color-accent-200: #fde68a;
  --color-accent-300: #fcd34d;
  --color-accent-400: #fbbf24;
  --color-accent-500: #f59e0b;
  --color-accent-600: #d97706;
  --color-accent-700: #b45309;
  --color-accent-800: #92400e;
  --color-accent-900: #78350f;

  /* Fonts */
  --font-sans:    "Inter Variable", Inter, system-ui, sans-serif;
  --font-display: "Playfair Display", Georgia, serif;
  --font-mono:    "JetBrains Mono", "Fira Code", monospace;

  /* Motion durations */
  --duration-instant:    50ms;
  --duration-fast:      150ms;
  --duration-base:      300ms;
  --duration-slow:      500ms;
  --duration-deliberate:800ms;

  /* Elevations */
  --shadow-elevation-0: none;
  --shadow-elevation-1: 0 1px 2px 0 rgb(0 0 0 / 0.5);
  --shadow-elevation-2: 0 1px 3px 0 rgb(0 0 0 / 0.5), 0 1px 2px -1px rgb(0 0 0 / 0.4);
  --shadow-elevation-3: 0 4px 6px -1px rgb(0 0 0 / 0.45), 0 2px 4px -2px rgb(0 0 0 / 0.4);
  --shadow-elevation-4: 0 10px 15px -3px rgb(0 0 0 / 0.45), 0 4px 6px -4px rgb(0 0 0 / 0.4);
  --shadow-elevation-5: 0 20px 25px -5px rgb(0 0 0 / 0.45), 0 8px 10px -6px rgb(0 0 0 / 0.4);
  --shadow-glow-sm:     0 0 15px rgb(245 158 11 / 0.2);
  --shadow-glow-md:     0 0 30px rgb(245 158 11 / 0.3);
  --shadow-glow-lg:     0 0 60px rgb(245 158 11 / 0.35);
}

/* P46 C7: WCAG 2.1 AAA touch target minimum — mobil cihazlarda buton + link
   tıklama alanları en az 44×44px olmalı. Tailwind utility yerine global CSS
   ile fallback uygula; bileşen-özel min-h-[44px] override edebilir. */
@media (pointer: coarse), (max-width: 768px) {
  button:not([aria-hidden="true"]):not(.no-touch-min),
  a[href]:not([aria-hidden="true"]):not(.no-touch-min):not(.text-link),
  input[type="submit"],
  input[type="button"],
  [role="button"]:not([aria-hidden="true"]):not(.no-touch-min) {
    min-height: 44px;
  }
  /* Pure-text inline link'lerden uzak dur — sadece button-style olanlar */
  button,
  [role="button"],
  input[type="submit"] {
    min-width: 44px;
  }
}

/* CMDK Overlay Background — P12 doctrine sweep: solid scrim, no backdrop-filter */
[cmdk-overlay] {
  background-color: rgba(0, 0, 0, 0.7);
  position: fixed;
  inset: 0;
  z-index: 9998;
  animation: fade 0.2s ease;
}

@keyframes fade {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

@theme {
  /* Ultra-Premium Calm Design & Tactile Brutalism (2026 Standards) */
  --color-primary: #ffffff; /* Stark White for high contrast */
  --color-primary-dark: #e2e8f0; /* Subtle slate for hover */
  --color-secondary: #facc15; /* Sharp Amber/Gold for highlights */

  --color-neutral: #000000; /* True Black for maximum OLED contrast */
  --color-surface: #0a0a0a; /* Vercel/Linear dark */
  --color-surface-high: #111111; /* Extremely subtle elevated surface */

  --color-text-main: #fafafa; /* Zinc-50 */
  --color-text-muted: #a1a1aa; /* Zinc-400 */

  /* Track C #3 — eCyPro brand palette. These tokens map to Tailwind v4
     `ecypro-*` utility names (bg-ecypro-navy, text-ecypro-gold, etc.) and
     are layered on top of the existing dark surface so the brand spec is
     reachable without refactoring every legacy class at once. */
  --color-ecypro-navy: #0d1b2a;
  --color-ecypro-gold: #d4a356;
  --color-ecypro-cream: #f5f1eb;
  --color-ecypro-ink: #1a1a1a;

  /* P44: axe-core WCAG AA contrast fix — slate-300 (#cad5e2) ve slate-500 (#62748e)
     dark `#0a0a0a` surface üzerinde 4.4:1 / 4.3:1 (4.5 minimum altında).
     Override → slate-400 equivalent (#94a3b8) → 7.0:1 (AA ✅, AAA için 7:1 sınırı).
     Mevcut `text-slate-300` ve `text-slate-500` class'ları aynı görünür değeri alır;
     component-bazlı refactor yerine token-level fix tercih edildi. */
  --color-slate-300: #94a3b8;
  --color-slate-500: #94a3b8;

  --font-sans:
    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-serif: 'Playfair Display', ui-serif, Georgia, serif;

  --phi: 1.61803398875;

  --gradient-gold: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  --gradient-blue: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  --gradient-royal: linear-gradient(135deg, #172554 0%, #0f172a 100%);

  /* Precision Shadows */
  --shadow-glow: 0 0 40px rgba(255, 255, 255, 0.03);
  --shadow-tactile: 0 1px 2px 0 rgba(0, 0, 0, 0.4), inset 0 1px 0 0 rgba(255, 255, 255, 0.05);

  /* ═══════════════════════════════════════════════════════════
     Phase 104a: Fibonacci Spacing Scale
     ───────────────────────────────────────────────────────────
     Tailwind v4 emits matching utilities (p-fib-3, gap-fib-8,
     m-fib-21, etc.) automatically once these custom names land
     in the spacing namespace. Pure Fibonacci sequence in px:
       1→4, 2→8, 3→12, 5→20, 8→32, 13→52, 21→84, 34→136, 55→220.
     The 4-px grid (CLAUDE.md doctrine) is preserved by every
     value being a multiple of 4. Existing p-1/p-2/p-3/p-5/p-8
     utilities already cover the small end of the scale; the new
     -fib-13 / -fib-21 / -fib-34 / -fib-55 fill the gap that
     non-Fib magic numbers (p-12, p-16, p-20) used to occupy.
     Migration of 387 magic-class call sites lives in P104b.
     ═══════════════════════════════════════════════════════════ */
  --spacing-fib-1: 0.25rem;   /*   4px */
  --spacing-fib-2: 0.5rem;    /*   8px */
  --spacing-fib-3: 0.75rem;   /*  12px */
  --spacing-fib-5: 1.25rem;   /*  20px */
  --spacing-fib-8: 2rem;      /*  32px */
  --spacing-fib-13: 3.25rem;  /*  52px */
  --spacing-fib-21: 5.25rem;  /*  84px */
  --spacing-fib-34: 8.5rem;   /* 136px */
  --spacing-fib-55: 13.75rem; /* 220px */

  /* Phase 104a: Golden-ratio type scale (φ = 1.61803398875).
     Base = 1rem (16 px). Each step multiplies by φ.
     Tailwind v4 emits text-golden-base, text-golden-lg, etc. */
  --text-golden-sm: 0.618rem;     /* 16 / φ  ≈  9.9 px */
  --text-golden-base: 1rem;       /* 16 px (anchor) */
  --text-golden-lg: 1.618rem;     /* 16 × φ  ≈ 25.9 px */
  --text-golden-xl: 2.618rem;     /* 16 × φ² ≈ 41.9 px */
  --text-golden-2xl: 4.236rem;    /* 16 × φ³ ≈ 67.8 px */
  --text-golden-3xl: 6.854rem;    /* 16 × φ⁴ ≈ 109.7 px */
}

@layer utilities {
  .aspect-golden {
    aspect-ratio: 1.618 / 1;
  }
  .aspect-golden-portrait {
    aspect-ratio: 1 / 1.618;
  }
}

@layer base {
  html {
    scroll-behavior: smooth;
  }

  :focus-visible {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
  }

  body {
    @apply antialiased text-[#94A3B8] bg-neutral;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    /* Headings default to Serif for high-impact */
    @apply font-serif text-white tracking-tight;
  }

  ::selection {
    @apply bg-primary/30 text-white;
  }
}

@layer utilities {
  /* P12 doctrine sweep — solid M3 surfaces, no glassmorphism / blur.
     Utility names `.glass` and `.glass-card` retained for call-site
     backwards-compat across ~12 components; visual identity now via
     opaque neutral surface + subtle border. */
  .glass {
    @apply bg-neutral/95 border-b border-white/[0.04];
  }

  .glass-card {
    @apply bg-[#0A101F] border border-white/[0.08];
    box-shadow: var(--shadow-tactile);
  }

  .font-serif-display {
    font-family: 'Playfair Display', serif;
  }

  .text-gradient {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  .text-gradient-blue {
    background: var(--gradient-blue);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  /* Shimmer overlay for premium highlights. Track C #2 — when this class
     was composed with `bg-clip-text + text-transparent + bg-linear-to-r`
     it overwrote the gradient `background` shorthand and erased the
     visible text (Hero "Sürdürülebilir" rendered as a gray sliver).
     Now uses `background-image` only so it layers on top of any
     gradient/clip background set by sibling utilities. */
  .shimmer {
    background-image: linear-gradient(
      120deg,
      transparent 30%,
      rgba(255, 255, 255, 0.08) 50%,
      transparent 70%
    );
    background-size: 200% 100%;
    background-repeat: no-repeat;
    animation: shimmer 2.5s ease-in-out infinite;
  }

  .btn-premium {
    @apply relative overflow-hidden px-6 py-3 rounded-full font-semibold transition-all duration-300;
    background: var(--gradient-blue);
    color: white;
    box-shadow: 0 4px 15px rgba(30, 64, 175, 0.3);
  }

  .btn-premium:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 25px rgba(30, 64, 175, 0.5);
  }

  .btn-premium-gold {
    @apply relative overflow-hidden px-6 py-3 rounded-full font-semibold transition-all duration-300;
    background: var(--gradient-gold);
    color: #0b0f19;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
  }

  .btn-premium-gold:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.5);
  }

  .text-xxs {
    font-size: 0.625rem; /* 10px (~9.88px) */
    line-height: 1rem;
  }

  .text-golden-sm {
    font-size: 0.618rem; /* 1 / 1.618 */
  }

  .text-golden-base {
    font-size: 1rem; /* Base 16px */
  }

  .text-golden-lg {
    font-size: 1.618rem; /* ~25.88px */
    line-height: 1.4;
  }

  .text-golden-xl {
    font-size: 2.618rem; /* ~41.88px */
    line-height: 1.2;
  }

  .text-golden-2xl {
    font-size: 4.236rem; /* ~67.7px */
    line-height: 1.1;
  }

  .badge {
    @apply font-bold uppercase tracking-widest rounded px-2 py-1;
    font-size: 0.625rem;
    line-height: 1rem;
  }

  /* Fibonacci Spacing & Sizing Utilities */
  /* Level 1: 2px */
  .p-fib-1 {
    @apply p-[2px];
  }
  .m-fib-1 {
    @apply m-[2px];
  }
  .gap-fib-1 {
    @apply gap-[2px];
  }

  /* Level 2: 3px */
  .p-fib-2 {
    @apply p-[3px];
  }
  .m-fib-2 {
    @apply m-[3px];
  }
  .gap-fib-2 {
    @apply gap-[3px];
  }

  /* Level 3: 5px */
  .p-fib-3 {
    @apply p-[5px];
  }
  .m-fib-3 {
    @apply m-[5px];
  }
  .gap-fib-3 {
    @apply gap-[5px];
  }
  .rounded-fib-3 {
    @apply rounded-[5px];
  }

  /* Level 4: 8px */
  .p-fib-4 {
    @apply p-[8px];
  }
  .px-fib-4 {
    @apply px-[8px];
  }
  .py-fib-4 {
    @apply py-[8px];
  }
  .m-fib-4 {
    @apply m-[8px];
  }
  .mt-fib-4 {
    @apply mt-[8px];
  }
  .mb-fib-4 {
    @apply mb-[8px];
  }
  .gap-fib-4 {
    @apply gap-[8px];
  }
  .rounded-fib-4 {
    @apply rounded-[8px];
  }

  /* Level 5: 13px */
  .p-fib-5 {
    @apply p-[13px];
  }
  .px-fib-5 {
    @apply px-[13px];
  }
  .py-fib-5 {
    @apply py-[13px];
  }
  .m-fib-5 {
    @apply m-[13px];
  }
  .mb-fib-5 {
    @apply mb-[13px];
  }
  .gap-fib-5 {
    @apply gap-[13px];
  }
  .rounded-fib-5 {
    @apply rounded-[13px];
  }

  /* Level 6: 21px */
  .p-fib-6 {
    @apply p-[21px];
  }
  .px-fib-6 {
    @apply px-[21px];
  }
  .py-fib-6 {
    @apply py-[21px];
  }
  .m-fib-6 {
    @apply m-[21px];
  }
  .mb-fib-6 {
    @apply mb-[21px];
  }
  .gap-fib-6 {
    @apply gap-[21px];
  }
  .rounded-fib-6 {
    @apply rounded-[21px];
  }

  /* Level 7: 34px */
  .p-fib-7 {
    @apply p-[34px];
  }
  .px-fib-7 {
    @apply px-[34px];
  }
  .py-fib-7 {
    @apply py-[34px];
  }
  .m-fib-7 {
    @apply m-[34px];
  }
  .mb-fib-7 {
    @apply mb-[34px];
  }
  .gap-fib-7 {
    @apply gap-[34px];
  }
  .rounded-fib-7 {
    @apply rounded-[34px];
  }

  /* Level 8: 55px */
  .p-fib-8 {
    @apply p-[55px];
  }
  .px-fib-8 {
    @apply px-[55px];
  }
  .py-fib-8 {
    @apply py-[55px];
  }
  .m-fib-8 {
    @apply m-[55px];
  }
  .mb-fib-8 {
    @apply mb-[55px];
  }
  .gap-fib-8 {
    @apply gap-[55px];
  }

  /* Level 9: 89px */
  .p-fib-9 {
    @apply p-[89px];
  }
  .px-fib-9 {
    @apply px-[89px];
  }
  .py-fib-9 {
    @apply py-[89px];
  }
  .m-fib-9 {
    @apply m-[89px];
  }
  .mb-fib-9 {
    @apply mb-[89px];
  }
  .gap-fib-9 {
    @apply gap-[89px];
  }

  /* Level 10: 144px */
  .p-fib-10 {
    @apply p-[144px];
  }
  .py-fib-10 {
    @apply py-[144px];
  }
  .gap-fib-10 {
    @apply gap-[144px];
  }
}

@keyframes shimmer {
  0% {
    background-position: 200% center;
  }
  100% {
    background-position: -200% center;
  }
}

/* P23/T2 — GPU-cheap skeleton shimmer (transform-based, not background-size animation).
   `translateX` keyframe paint cost ≈ 0; compositor-only animation.            */
@keyframes ecySkeletonShimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

.ecy-skeleton {
  position: relative;
  overflow: hidden;
}

.ecy-skeleton-shimmer::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.06) 50%,
    transparent 100%
  );
  animation: ecySkeletonShimmer 1.6s ease-in-out infinite;
  will-change: transform;
}

@media (prefers-reduced-motion: reduce) {
  .ecy-skeleton-shimmer::after {
    animation: none;
    background: none;
  }
}

.ecy-skeleton-no-shimmer::after {
  animation: none;
  background: none;
}

/* Performance: Skip rendering of below-fold sections until they enter viewport */
.below-fold {
  content-visibility: auto;
  contain-intrinsic-size: 0 600px;
}

@keyframes blob {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(30px, -50px) scale(1.1);
  }
  66% {
    transform: translate(-20px, 20px) scale(0.9);
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

@layer utilities {
  .animate-blob {
    animation: blob 7s infinite ease-in-out;
  }
  .animate-float {
    animation: float 3s infinite ease-in-out;
  }
  .animation-delay-2000 {
    animation-delay: 2s;
  }
  .animation-delay-4000 {
    animation-delay: 4s;
  }
}

@theme {
  --animate-fade-in: fade-in 0.6s ease-out forwards;
  --animate-slide-up: slide-up 0.6s ease-out forwards;
}

@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

/* Zen Mode Rules */
html.zen-mode body {
  background-color: #ffffff !important;
  color: #000000 !important;
}

html.zen-mode .bg-neutral,
html.zen-mode .bg-surface,
html.zen-mode .bg-surface-high {
  background-color: #ffffff !important;
  border-color: #e2e8f0 !important; /* slate-200 */
}

/* Increase contrast for text */
html.zen-mode p,
html.zen-mode li,
html.zen-mode span {
  color: #1a202c !important; /* gray-900 */
}

html.zen-mode h1,
html.zen-mode h2,
html.zen-mode h3,
html.zen-mode h4,
html.zen-mode h5,
html.zen-mode h6 {
  color: #000000 !important;
  background: none !important;
  -webkit-text-fill-color: initial !important;
}

/* Hide specific decorative gradients/blobs if they use these utility classes */
html.zen-mode .blur-3xl,
html.zen-mode .blur-2xl,
html.zen-mode .bg-gradient-to-r,
html.zen-mode .bg-gradient-to-b,
html.zen-mode .bg-gradient-to-tr {
  background: none !important;
  opacity: 0 !important;
}

/* Preserve interactive buttons */
html.zen-mode button:not(.zen-toggle) {
  background-color: #f1f5f9 !important; /* slate-100 */
  color: #000000 !important;
  border: 1px solid #cbd5e1 !important;
}

/* Zen Specific Overrides for Readability */
html.zen-mode article {
  max-width: 65ch; /* Optimal reading width */
  margin-left: auto;
  margin-right: auto;
}