/* =====================================================
   ATMACASOFT - Premium Web Agency
   Ana Stil Dosyası
   ===================================================== */

/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
  /* Colors - Primary Palette */
  --primary: #1a5fb4;
  --primary-dark: #0d1b2a;
  --primary-light: #1b4965;
  --accent: #06d6a0;
  --accent-secondary: #0891b2;
  --accent-gradient: linear-gradient(135deg, #06d6a0, #0891b2);

  /* Text Colors */
  --text-primary: #f8fafc;
  --text-secondary: #e2e8f0;
  --text-muted: #94a3b8;
  --text-dark: #1e293b;

  /* Background Colors */
  --bg-dark: #0d1b2a;
  --bg-darker: #080f18;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);

  /* Glass Effect */
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-blur: blur(16px);

  /* Gradients */
  --hero-gradient: radial-gradient(ellipse at top, #1b4965 0%, #0d1b2a 50%, #080f18 100%);
  --section-gradient: linear-gradient(180deg, #0d1b2a 0%, #1b4965 50%, #0d1b2a 100%);
  --cta-gradient: linear-gradient(135deg, #1a5fb4 0%, #0891b2 100%);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(6, 214, 160, 0.15);
  --shadow-glow-accent: 0 0 30px rgba(6, 214, 160, 0.3);

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Outfit', var(--font-primary);

  /* Font Sizes */
  --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: 2rem;
  --text-4xl: 2.5rem;
  --text-5xl: 3rem;
  --text-6xl: 4rem;

  /* Spacing */
  --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;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  --transition-smooth: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-Index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal: 400;
  --z-tooltip: 500;
}

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

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

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-dark);
  overflow-x: hidden;
}

/* Selection */
::selection {
  background-color: var(--accent);
  color: var(--bg-dark);
}

/* Links */
a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-secondary);
}

/* Images */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Lists */
ul,
ol {
  list-style: none;
}

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

/* Focus States */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ===== TYPOGRAPHY ===== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

h1 {
  font-size: var(--text-6xl);
  font-weight: 700;
}

h2 {
  font-size: var(--text-4xl);
}

h3 {
  font-size: var(--text-3xl);
}

h4 {
  font-size: var(--text-2xl);
}

h5 {
  font-size: var(--text-xl);
}

h6 {
  font-size: var(--text-lg);
}

p {
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}

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

.text-muted {
  color: var(--text-muted);
}

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

/* ===== LAYOUT ===== */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container-lg {
  max-width: 1440px;
}

.container-sm {
  max-width: 960px;
}

section {
  padding: var(--space-24) 0;
  position: relative;
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--space-6);
}

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

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

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* Flexbox Utilities */
.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-col {
  flex-direction: column;
}

.gap-2 {
  gap: var(--space-2);
}

.gap-4 {
  gap: var(--space-4);
}

.gap-6 {
  gap: var(--space-6);
}

.gap-8 {
  gap: var(--space-8);
}

/* ===== UTILITIES (Bootstrap Replacements) ===== */
.d-flex {
  display: flex;
}

.justify-content-center {
  justify-content: center;
}

.align-items-center {
  align-items: center;
}

.flex-wrap {
  flex-wrap: wrap;
}

.gap-1 {
  gap: 0.25rem;
}

.gap-2 {
  gap: 0.5rem;
}

.gap-3 {
  gap: 1rem;
}

.gap-4 {
  gap: 1.5rem;
}

.gap-5 {
  gap: 3rem;
}

/* ===== SECTION HEADERS ===== */
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-16);
}

.section-label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: rgba(6, 214, 160, 0.1);
  border-radius: var(--radius-full);
}

.section-title {
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--text-muted);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1200px) {
  :root {
    --text-6xl: 3.5rem;
    --text-5xl: 2.5rem;
    --text-4xl: 2rem;
  }

  .grid-4 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 992px) {
  :root {
    --text-6xl: 3rem;
    --text-5xl: 2.25rem;
    --text-4xl: 1.75rem;
  }

  section {
    padding: var(--space-20) 0;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  :root {
    --text-6xl: 2.5rem;
    --text-5xl: 2rem;
    --text-4xl: 1.5rem;
    --text-3xl: 1.25rem;
  }

  section {
    padding: var(--space-16) 0;
  }

  .container {
    padding: 0 var(--space-4);
  }

  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .section-header {
    margin-bottom: var(--space-12);
  }
}

@media (max-width: 576px) {
  :root {
    --text-6xl: 2rem;
    --text-5xl: 1.75rem;
  }

  .grid-4 {
    grid-template-columns: 1fr;
  }
}