/* ==========================================================================
   KANDEMİR KALIP VE ELEKTRİK TİC. LTD. ŞTİ.
   Design System & Master Stylesheet
   Built according to skill_pro_web.md specifications
   ========================================================================== */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@500;600;700&display=swap');

/* --------------------------------------------------------------------------
   1. Design System & CSS Variables (Dark & Light Theme)
   -------------------------------------------------------------------------- */
:root {
  /* 8px Scale Spacing System */
  --space-8px: 8px;
  --space-16px: 16px;
  --space-24px: 24px;
  --space-32px: 32px;
  --space-48px: 48px;
  --space-64px: 64px;
  --space-96px: 96px;

  /* Typography */
  --font-title: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Common Tokens */
  --accent-primary: #d97706; /* Industrial Amber / Copper */
  --accent-hover: #b45309;
  --accent-light: rgba(217, 119, 6, 0.12);
  --accent-glow: rgba(217, 119, 6, 0.25);
  
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Dark Theme (Default) */
[data-theme="dark"] {
  --bg-primary: #0a0d12;      /* Deep Titanium Charcoal */
  --bg-secondary: #121721;    /* Slate Dark Card */
  --bg-tertiary: #1a2232;     /* Elevated Surface */
  --bg-surface: #222b3e;
  
  --text-primary: #f8fafc;    /* Crisp White */
  --text-secondary: #94a3b8;  /* Slate Metallic Neutral */
  --text-muted: #64748b;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-active: rgba(217, 119, 6, 0.5);
  
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 25px rgba(217, 119, 6, 0.2);

  --nav-bg: rgba(10, 13, 18, 0.88);
}

/* Light Theme */
[data-theme="light"] {
  --bg-primary: #f8fafc;      /* Clean Off-white */
  --bg-secondary: #ffffff;    /* Pure White Card */
  --bg-tertiary: #f1f5f9;     /* Light Surface */
  --bg-surface: #e2e8f0;
  
  --text-primary: #0f172a;    /* Deep Steel Black */
  --text-secondary: #475569;  /* Muted Slate Text */
  --text-muted: #94a3b8;
  
  --border-color: rgba(15, 23, 42, 0.08);
  --border-active: rgba(217, 119, 6, 0.6);
  
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 10px 25px rgba(15, 23, 42, 0.08);
  --shadow-glow: 0 0 20px rgba(217, 119, 6, 0.25);

  --nav-bg: rgba(248, 250, 252, 0.9);
}

/* --------------------------------------------------------------------------
   2. Reset & Base Styles
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-title);
  color: var(--text-primary);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.02em;
}

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

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

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

/* Utility Containers & Grid */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-24px);
}

.section-spacing {
  padding: var(--space-96px) 0;
}

/* Section Header Component */
.section-header {
  margin-bottom: var(--space-48px);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8px);
  padding: 6px var(--space-16px);
  background-color: var(--accent-light);
  color: var(--accent-primary);
  border: 1px solid var(--accent-glow);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-16px);
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-bottom: var(--space-16px);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 680px;
}

/* --------------------------------------------------------------------------
   3. Header & Single-Line Navbar
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: var(--space-16px);
  white-space: nowrap;
}

.logo-img {
  height: 48px;
  width: 48px;
  object-fit: cover;
  border-radius: 50%; /* Circle radius styling */
  border: 2px solid var(--accent-primary);
  box-shadow: 0 2px 10px var(--accent-glow);
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-brand {
  font-family: var(--font-title);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  white-space: nowrap;
}

.logo-tagline {
  font-size: 0.725rem;
  color: var(--accent-primary);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* Single Line Nav Links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-32px);
  list-style: none;
  margin: 0;
  padding: 0;
  white-space: nowrap; /* Enforces single line */
}

.nav-link {
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  white-space: nowrap; /* Single line requirement */
  position: relative;
  padding: 6px 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--accent-primary);
  transition: width var(--transition-fast);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-16px);
  white-space: nowrap;
}

/* Theme Switcher Button */
.theme-toggle-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: translateY(-1px);
}

.theme-toggle-btn svg {
  width: 20px;
  height: 20px;
}

/* Header Contact Button */
.header-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8px);
  background-color: var(--accent-primary);
  color: #ffffff;
  padding: 10px var(--space-24px);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 14px var(--accent-glow);
  white-space: nowrap;
}

.header-cta:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--accent-glow);
}

.header-cta svg {
  width: 16px;
  height: 16px;
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 8px;
}

/* --------------------------------------------------------------------------
   4. Hero Section (Asymmetric Modern Layout)
   -------------------------------------------------------------------------- */
.hero {
  padding-top: 140px;
  padding-bottom: var(--space-96px);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-48px);
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8px);
  padding: 8px var(--space-16px);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-24px);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background-color: #22c55e;
  border-radius: 50%;
  box-shadow: 0 0 10px #22c55e;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 3.8rem);
  font-weight: 700;
  margin-bottom: var(--space-24px);
  line-height: 1.1;
}

.hero-title span {
  color: var(--accent-primary);
  position: relative;
  display: inline-block;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-32px);
  max-width: 600px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  align-items: center;
  gap: var(--space-16px);
  margin-bottom: var(--space-48px);
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8px);
  background-color: var(--accent-primary);
  color: #ffffff;
  padding: 14px var(--space-32px);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8px);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  padding: 14px var(--space-32px);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: translateY(-2px);
}

/* Quick Stats Bar */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-24px);
  padding-top: var(--space-32px);
  border-top: 1px solid var(--border-color);
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-family: var(--font-title);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-number span {
  color: var(--accent-primary);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Hero Media Visual Showcase */
.hero-media-wrapper {
  position: relative;
}

.hero-image-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  background-color: var(--bg-secondary);
}

.hero-image-card img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.hero-image-card:hover img {
  transform: scale(1.03);
}

.hero-badge-overlay {
  position: absolute;
  bottom: var(--space-24px);
  left: var(--space-24px);
  right: var(--space-24px);
  background: rgba(10, 13, 18, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--space-16px) var(--space-24px);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: var(--space-16px);
  color: #ffffff;
}

.badge-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--accent-light);
  border: 1px solid var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-primary);
  flex-shrink: 0;
}

.badge-title {
  font-weight: 700;
  font-size: 0.95rem;
}

.badge-desc {
  font-size: 0.8rem;
  color: #94a3b8;
}

/* --------------------------------------------------------------------------
   5. Kurumsal & Hakkımızda Section
   -------------------------------------------------------------------------- */
.about-section {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-64px);
  align-items: center;
}

.about-image-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16px);
}

.about-img-box {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.about-img-box img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.about-img-box:nth-child(2) {
  margin-top: var(--space-32px);
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-16px);
  margin-top: var(--space-32px);
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-16px);
  padding: var(--space-16px);
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

.feature-item:hover {
  border-color: var(--accent-primary);
}

.feature-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background-color: var(--accent-light);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.feature-text h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.feature-text p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   6. Hizmetlerimiz Section
   -------------------------------------------------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-32px);
}

.service-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-32px);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-active);
  box-shadow: var(--shadow-md);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-primary);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon-box {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background-color: var(--accent-light);
  border: 1px solid var(--accent-glow);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-24px);
}

.service-title {
  font-size: 1.35rem;
  margin-bottom: var(--space-12px);
}

.service-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: var(--space-24px);
  flex-grow: 1;
}

.service-bullets {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-24px) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-8px);
}

.service-bullets li {
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: var(--space-8px);
}

.service-bullets li svg {
  color: var(--accent-primary);
  width: 14px;
  height: 14px;
}

/* --------------------------------------------------------------------------
   7. Makine Parkı & Teknolojik Altyapı
   -------------------------------------------------------------------------- */
.machinery-section {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.machinery-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-48px);
  align-items: center;
}

.machinery-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
}

.machinery-media img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.machinery-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--bg-primary);
}

.machinery-table th,
.machinery-table td {
  padding: var(--space-16px) var(--space-24px);
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.machinery-table th {
  background-color: var(--bg-tertiary);
  font-family: var(--font-title);
  font-size: 0.9rem;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.machinery-table tr:last-child td {
  border-bottom: none;
}

.machinery-table td {
  font-size: 0.925rem;
  color: var(--text-secondary);
}

.machinery-table td:first-child {
  font-weight: 600;
  color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   8. Interaktif Kalıp Teklif & Hesaplama Modülü
   -------------------------------------------------------------------------- */
.calculator-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-48px);
  box-shadow: var(--shadow-md);
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-48px);
}

.calc-form-group {
  margin-bottom: var(--space-24px);
}

.calc-label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: var(--space-8px);
  color: var(--text-primary);
}

.calc-select, .calc-input {
  width: 100%;
  padding: 12px var(--space-16px);
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition-fast);
}

.calc-select:focus, .calc-input:focus {
  border-color: var(--accent-primary);
}

.calc-result-box {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-32px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.result-header {
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-8px);
}

.result-estimate {
  font-family: var(--font-title);
  font-size: 2.25rem;
  color: var(--accent-primary);
  font-weight: 700;
  margin-bottom: var(--space-16px);
}

.result-details {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-24px);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   9. İletişim & Konum Bilgileri (Google Business Details)
   -------------------------------------------------------------------------- */
.contact-section {
  background-color: var(--bg-primary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-48px);
}

.contact-info-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-48px);
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-16px);
  margin-bottom: var(--space-32px);
}

.info-item:last-child {
  margin-bottom: 0;
}

.info-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background-color: var(--accent-light);
  border: 1px solid var(--accent-glow);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.info-title {
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.info-value {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.5;
}

.map-container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  min-height: 400px;
  background-color: var(--bg-secondary);
  position: relative;
}

.map-placeholder {
  width: 100%;
  height: 100%;
  min-height: 450px;
  background: radial-gradient(circle at center, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-32px);
  text-align: center;
}

.map-badge {
  background-color: var(--accent-light);
  color: var(--accent-primary);
  padding: var(--space-8px) var(--space-16px);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--space-16px);
  border: 1px solid var(--accent-glow);
}

/* --------------------------------------------------------------------------
   10. Footer
   -------------------------------------------------------------------------- */
.footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: var(--space-64px) 0 var(--space-32px) 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-48px);
  margin-bottom: var(--space-48px);
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: var(--space-16px);
  max-width: 320px;
}

.footer-title {
  font-size: 1rem;
  margin-bottom: var(--space-20px);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-12px);
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-primary);
}

.footer-bottom {
  padding-top: var(--space-32px);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   11. Mobile Responsiveness & Breakpoints
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .nav-menu {
    gap: var(--space-16px);
  }

  .hero-grid,
  .about-grid,
  .machinery-container,
  .calc-grid,
  .contact-grid,
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-32px);
  }

  .about-img-box:nth-child(2) {
    margin-top: 0;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: var(--space-24px);
    gap: var(--space-16px);
    transform: translateY(-150%);
    transition: transform var(--transition-normal);
    box-shadow: var(--shadow-md);
  }

  .nav-menu.is-open {
    transform: translateY(0);
  }

  .mobile-toggle {
    display: block;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-16px);
    text-align: center;
  }
}