/* ==========================================================================
   OS STEEL CORPORATION - INDUSTRIAL DESIGN SYSTEM
   Adaptive Light & Dark Theme System
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:ital,wght@0,400;0,600;0,700;0,800;0,900;1,700&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

/* ==========================================================================
   THEME DESIGN TOKENS
   ========================================================================== */

/* --------------------------------------------------------------------------
   DARK THEME (Default / Existing Brand Anchor)
   -------------------------------------------------------------------------- */
:root,
html[data-theme="dark"],
:root[data-theme="dark"],
[data-theme="dark"] {
  color-scheme: dark;

  /* Surfaces & Backgrounds */
  --color-bg: #0C1017;                 /* Deep Carbon Slate page background */
  --color-surface: #121824;            /* Surface Navy for cards & sections */
  --color-surface-raised: #182030;     /* Elevated cards and interactive states */
  --color-surface-hover: #1E293D;      /* Card hover states */
  --color-surface-sunken: #080B10;     /* Deep carbon for table headers & inputs */
  --color-surface-contrast: #FFFFFF;   /* Inverted surface */
  --color-carbon: #080B10;             /* Legacy token fallback */
  --color-navy: #121824;               /* Legacy token fallback */

  /* Structural Borders */
  --color-border: #222F44;             /* Structural framing borders */
  --color-border-light: #2D3E59;       /* Active / hovered borders */
  --color-border-subtle: rgba(255, 255, 255, 0.08);

  /* Typography */
  --text-primary: #F8FAFC;            /* Primary headings & white body */
  --text-secondary: #94A3B8;          /* Slate description text (Contrast 8.2:1) */
  --text-muted: #8292A3;              /* Metadata text (Contrast 5.4:1 - Passes WCAG AA) */
  --text-heading: #FFFFFF;            /* Pure white display headings */
  --text-lead: #CBD5E1;               /* Lead paragraph text */

  /* Brand Accents */
  --color-accent: #FF5500;            /* High-vis Safety Orange */
  --color-accent-hover: #FF6E26;
  --color-accent-subtle: rgba(255, 85, 0, 0.12);
  --color-accent-glow: rgba(255, 85, 0, 0.35);
  --color-accent-contrast: #FFFFFF;   /* Text on accent buttons */

  /* Supporting Industrial Highlights */
  --color-amber: #F59E0B;
  --color-steel: #38BDF8;

  /* Header & Navigation */
  --header-bg: rgba(12, 16, 23, 0.94);
  --header-border: #222F44;
  --topbar-bg: #080B10;
  --topbar-border: #1E293B;

  /* Footer */
  --footer-bg: #080B10;
  --footer-border: #222F44;
  --footer-text: #94A3B8;
  --footer-heading: #FFFFFF;

  /* Hero & Cinematic Elements */
  --hero-gradient: linear-gradient(90deg, rgba(8, 11, 16, 0.98) 0%, rgba(8, 11, 16, 0.88) 45%, rgba(8, 11, 16, 0.50) 100%);
  --hero-text: #FFFFFF;
  --hero-subtitle: #CBD5E1;
  --cta-banner-bg: linear-gradient(135deg, #101622 0%, #172132 100%);

  /* Technical Grid Pattern */
  --grid-pattern-color: rgba(255, 255, 255, 0.03);

  /* Shadows */
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.6);
  --shadow-elevated: 0 20px 40px -15px rgba(0, 0, 0, 0.8);
}

/* --------------------------------------------------------------------------
   LIGHT THEME (Companion Industrial Architectural Aesthetic)
   -------------------------------------------------------------------------- */
html[data-theme="light"],
:root[data-theme="light"],
[data-theme="light"] {
  color-scheme: light;

  /* Surfaces & Backgrounds */
  --color-bg: #F4F6F9;                 /* Architectural Off-White / Concrete Pearl */
  --color-surface: #FFFFFF;            /* Pure white cards and panels */
  --color-surface-raised: #EAEFF5;     /* Soft slate elevated card background */
  --color-surface-hover: #E2E8F0;      /* Hover background */
  --color-surface-sunken: #EBEFF5;     /* Sunken header / table header background */
  --color-surface-contrast: #080B10;   /* Inverted surface */
  --color-carbon: #EAEFF5;             /* Legacy token fallback */
  --color-navy: #FFFFFF;               /* Legacy token fallback */

  /* Structural Borders */
  --color-border: #D1D9E4;             /* Crisp structural architectural border */
  --color-border-light: #B8C5D6;       /* Hovered / prominent border */
  --color-border-subtle: rgba(0, 0, 0, 0.06);

  /* Typography (WCAG AA Compliant) */
  --text-primary: #0F141C;            /* Deep near-black body (Contrast 15.2:1 against #F4F6F9) */
  --text-secondary: #475569;          /* Slate 600 body text (Contrast 5.5:1 against #F4F6F9) */
  --text-muted: #64748B;              /* Slate 500 metadata text (Contrast 4.6:1 against #F4F6F9) */
  --text-heading: #080B10;            /* Authoritative industrial black headings */
  --text-lead: #334155;               /* Slate 700 lead text (Contrast 8.3:1 against #F4F6F9) */

  /* Brand Accents */
  --color-accent: #E64A00;            /* Calibrated Deep Safety Orange for AAA contrast on light */
  --color-accent-hover: #CC4200;
  --color-accent-subtle: rgba(230, 74, 0, 0.08);
  --color-accent-glow: rgba(230, 74, 0, 0.22);
  --color-accent-contrast: #FFFFFF;   /* White text on accent buttons */

  /* Supporting Industrial Highlights */
  --color-amber: #D97706;
  --color-steel: #0284C7;

  /* Header & Navigation */
  --header-bg: rgba(255, 255, 255, 0.94);
  --header-border: #D1D9E4;
  --topbar-bg: #EAEFF5;
  --topbar-border: #D8DFE8;

  /* Footer */
  --footer-bg: #EAEFF5;
  --footer-border: #D1D9E4;
  --footer-text: #475569;
  --footer-heading: #080B10;

  /* Hero & Cinematic Elements */
  --hero-gradient: linear-gradient(90deg, rgba(8, 11, 16, 0.95) 0%, rgba(8, 11, 16, 0.82) 50%, rgba(8, 11, 16, 0.45) 100%);
  --hero-text: #FFFFFF;
  --hero-subtitle: #CBD5E1;
  --cta-banner-bg: linear-gradient(135deg, #FFFFFF 0%, #EAEFF5 100%);

  /* Technical Grid Pattern */
  --grid-pattern-color: rgba(15, 20, 28, 0.035);

  /* Shadows */
  --shadow-card: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --shadow-elevated: 0 20px 30px -10px rgba(15, 23, 42, 0.12);
}

/* ==========================================================================
   GLOBAL SIZING & FONTS
   ========================================================================== */
:root {
  --font-heading: 'Barlow Condensed', -apple-system, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --container-max: 1240px;
  --transition-fast: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 280ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--color-bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg);
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

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

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

ul, ol {
  list-style: none;
}

/* Technical Grid Pattern Background Utility */
.bg-grid-pattern {
  background-image: 
    linear-gradient(to right, var(--grid-pattern-color) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-pattern-color) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.section {
  padding-block: 5.5rem;
  position: relative;
}

@media (max-width: 768px) {
  .section {
    padding-block: 3.5rem;
  }
}

/* Headings & Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1.05;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-heading);
}

h1 {
  font-size: clamp(2.5rem, 5.5vw, 4.5rem);
  font-weight: 900;
  letter-spacing: 1px;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
}

h3 {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 700;
}

h4 {
  font-size: 1.25rem;
  font-weight: 700;
}

p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.65;
}

.lead {
  font-size: 1.2rem;
  line-height: 1.6;
  color: var(--text-lead);
}

/* Badges & Section Eyebrows */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.eyebrow::before {
  content: '';
  display: inline-block;
  width: 14px;
  height: 3px;
  background-color: var(--color-accent);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.75rem;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--text-secondary);
}

.badge-accent {
  background: var(--color-accent-subtle);
  border-color: rgba(230, 74, 0, 0.4);
  color: var(--color-accent);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.75rem;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-accent-contrast);
  box-shadow: 0 4px 18px var(--color-accent-glow);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--color-accent-glow);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-heading);
  border: 2px solid var(--color-border-light);
}

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

.btn-white {
  background-color: var(--color-surface-contrast);
  color: var(--color-bg);
}

.btn-white:hover {
  background-color: var(--color-surface-raised);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.95rem;
}

.btn-lg {
  padding: 1.1rem 2.2rem;
  font-size: 1.25rem;
}

/* Top Notification / Contact Bar */
.top-bar {
  background-color: var(--topbar-bg);
  border-bottom: 1px solid var(--topbar-border);
  font-size: 0.85rem;
  color: var(--text-muted);
  padding-block: 0.5rem;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.top-bar-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.top-bar-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-secondary);
}

.top-bar-link:hover {
  color: var(--color-accent);
}

/* Main Site Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--header-border);
  transition: all var(--transition-fast);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  height: 48px;
  color: var(--text-heading);
}

.brand-logo-svg .logo-beam {
  fill: var(--color-border-light);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-secondary);
  position: relative;
  padding-block: 0.4rem;
}

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

.nav-link:hover, .nav-link.active {
  color: var(--text-heading);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* ==========================================================================
   THEME TOGGLE BUTTON COMPONENT
   ========================================================================== */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  padding: 0;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

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

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

.theme-icon {
  position: absolute;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease;
}

/* Dark Mode: Sun visible (rotate 0, scale 1), Moon hidden */
:root .theme-icon-sun,
html[data-theme="dark"] .theme-icon-sun,
:root[data-theme="dark"] .theme-icon-sun,
[data-theme="dark"] .theme-icon-sun {
  transform: rotate(0deg) scale(1);
  opacity: 1;
}

:root .theme-icon-moon,
html[data-theme="dark"] .theme-icon-moon,
:root[data-theme="dark"] .theme-icon-moon,
[data-theme="dark"] .theme-icon-moon {
  transform: rotate(90deg) scale(0);
  opacity: 0;
}

/* Light Mode: Moon visible (rotate 0, scale 1), Sun hidden */
html[data-theme="light"] .theme-icon-sun,
:root[data-theme="light"] .theme-icon-sun,
[data-theme="light"] .theme-icon-sun {
  transform: rotate(-90deg) scale(0);
  opacity: 0;
}

html[data-theme="light"] .theme-icon-moon,
:root[data-theme="light"] .theme-icon-moon,
[data-theme="light"] .theme-icon-moon {
  transform: rotate(0deg) scale(1);
  opacity: 1;
}

/* Mobile Nav Toggle */
.mobile-toggle {
  display: none;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 0.6rem;
  cursor: pointer;
}

@media (max-width: 991px) {
  .top-bar {
    display: none;
  }
  .nav-links {
    display: none;
  }
  .mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .site-header .nav-actions .btn {
    display: none;
  }
}

/* Mobile Drawer Menu */
.mobile-menu {
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-bg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-normal);
  z-index: 99;
  border-bottom: 2px solid var(--color-accent);
}

.mobile-menu.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu .nav-link {
  font-size: 1.6rem;
  padding-block: 0.75rem;
  border-bottom: 1px solid var(--color-border);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  padding-block: 6rem;
  overflow: hidden;
  background-color: #080B10;
}

.hero-backdrop {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero-backdrop img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.38;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: var(--hero-gradient);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 780px;
}

.hero-title {
  margin-bottom: 1.5rem;
  color: var(--hero-text);
}

.hero-title span.accent {
  color: var(--color-accent);
}

.hero-subtitle {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--hero-subtitle);
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

/* Hero Section Buttons - Explicitly styled for high contrast against dark hero photograph */
.hero .btn-secondary {
  background-color: rgba(255, 255, 255, 0.08);
  color: #FFFFFF !important;
  border: 2px solid rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.hero .btn-secondary:hover {
  background-color: var(--color-accent);
  color: #FFFFFF !important;
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--color-accent-glow);
}

/* Stats Bar */
.stats-bar {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding-block: 2.5rem;
  position: relative;
  z-index: 10;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

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

@media (max-width: 991px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

.stat-item {
  border-left: 3px solid var(--color-accent);
  padding-left: 1.25rem;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 900;
  line-height: 1;
  color: var(--text-heading);
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-sublabel {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Cards (Services, Values, Projects) */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2rem;
}

@media (max-width: 640px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}

/* Service Card */
.service-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

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

.service-card-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background-color: var(--color-surface-sunken);
}

.service-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.service-card:hover .service-card-media img {
  transform: scale(1.05);
}

.service-card-tag {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background-color: rgba(8, 11, 16, 0.85);
  backdrop-filter: blur(6px);
  padding: 0.25rem 0.65rem;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--color-accent);
  border: 1px solid rgba(255, 85, 0, 0.3);
  border-radius: var(--radius-sm);
}

.service-card-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.service-card-title {
  margin-bottom: 0.75rem;
  font-size: 1.5rem;
}

.service-card-desc {
  margin-bottom: 1.5rem;
  flex-grow: 1;
  font-size: 0.95rem;
}

.service-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-accent);
}

.service-card-link:hover {
  color: var(--color-accent-hover);
  gap: 0.75rem;
}

/* Value / Why Card */
.why-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 2rem;
  border-radius: var(--radius-md);
  position: relative;
  transition: all var(--transition-fast);
}

.why-card:hover {
  border-color: rgba(230, 74, 0, 0.4);
  background-color: var(--color-surface-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.why-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-subtle);
  border: 1px solid rgba(230, 74, 0, 0.3);
  border-radius: var(--radius-sm);
  color: var(--color-accent);
  margin-bottom: 1.25rem;
}

.why-icon svg {
  width: 26px;
  height: 26px;
}

.why-title {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}

.why-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* Project Card & Filter */
.filter-nav {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.filter-btn {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--text-secondary);
  padding: 0.5rem 1.2rem;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: #FFFFFF;
}

.project-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-border-light);
  box-shadow: var(--shadow-card);
}

.project-media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: var(--color-surface-sunken);
}

.project-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-card:hover .project-media img {
  transform: scale(1.05);
}

.project-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background-color: rgba(8, 11, 16, 0.88);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #FF5500;
}

.project-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
}

.project-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.project-title {
  font-size: 1.35rem;
  margin-bottom: 0.6rem;
}

.project-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 1rem;
  flex-grow: 1;
}

/* Call to Action Banner */
.cta-banner {
  background: var(--cta-banner-bg);
  border: 1px solid var(--color-border);
  border-left: 6px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: 3.5rem;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 35%;
  background: radial-gradient(circle at 100% 50%, var(--color-accent-subtle), transparent 70%);
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.cta-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  margin-bottom: 1rem;
}

.cta-desc {
  font-size: 1.15rem;
  margin-bottom: 2rem;
  color: var(--text-secondary);
}

.cta-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .cta-banner {
    padding: 2rem 1.5rem;
  }
}

/* Page Header (Subpages) */
.page-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding-block: 4.5rem 3.5rem;
  position: relative;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.breadcrumb-separator {
  color: var(--color-accent);
}

/* Detail Pages (Services & Projects) */
.detail-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
}

@media (max-width: 991px) {
  .detail-grid {
    grid-template-columns: 1fr;
  }
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1.5rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.spec-table tr {
  border-bottom: 1px solid var(--color-border);
}

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

.spec-table th, .spec-table td {
  padding: 1rem 1.25rem;
  text-align: left;
}

.spec-table th {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-secondary);
  width: 38%;
  background-color: var(--color-surface-sunken);
  border-right: 1px solid var(--color-border);
}

.spec-table td {
  color: var(--text-primary);
  font-size: 0.95rem;
}

/* Form Styles */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  background-color: var(--color-surface-sunken);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color var(--transition-fast), background-color var(--transition-normal);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px var(--color-accent-subtle);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 640px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* Footer */
.site-footer {
  background-color: var(--footer-bg);
  border-top: 1px solid var(--footer-border);
  padding-top: 5rem;
  padding-bottom: 2rem;
  margin-top: auto;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

@media (max-width: 991px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 540px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-heading {
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
  color: var(--footer-heading);
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-heading::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background-color: var(--color-accent);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  color: var(--footer-text);
  font-size: 0.95rem;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-accent);
  padding-left: 4px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
  color: var(--footer-text);
  font-size: 0.95rem;
}

.footer-contact-item svg {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.footer-bottom {
  padding-top: 1.75rem;
  border-top: 1px solid var(--footer-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.footer-copyright {
  color: var(--text-muted);
  font-size: 0.8125rem;
  line-height: 1.5;
}

.developer-credit {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-muted);
  font-size: 0.8125rem;
  letter-spacing: 0.01em;
}

.developer-credit a {
  color: var(--text-secondary);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.developer-credit a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* Lightbox Modal (For projects) */
.lightbox-modal {
  position: fixed;
  inset: 0;
  background: rgba(8, 11, 16, 0.95);
  backdrop-filter: blur(8px);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.lightbox-modal.is-open {
  display: flex;
}

.lightbox-content {
  position: relative;
  max-width: 1000px;
  max-height: 90vh;
}

.lightbox-content img {
  max-height: 80vh;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.lightbox-close {
  position: absolute;
  top: -2.5rem;
  right: 0;
  background: none;
  border: none;
  color: #FFFFFF;
  font-size: 2rem;
  cursor: pointer;
}