/* ============================================
   INELEV — Main Stylesheet
   Design System + Layout + Components + Themes
   ============================================ */

/* ---------- CSS Custom Properties ---------- */

:root {
  /* Brand Colors */
  --color-gold: #F5C242;
  --color-gold-rgb: 245, 194, 66;
  --color-gold-light: #f8d878;
  --color-gold-dark: #d4a52e;

  /* Light Theme (default) */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f7f4;
  --bg-card: #ffffff;
  --bg-hero: #2d2d2d;
  --bg-dark-section: #2d2d2d;
  --bg-footer: #1a1a1a;
  --text-primary: #2d2d2d;
  --text-secondary: #5a5a5a;
  --text-muted: #9a9a9a;
  --text-on-dark: #ffffff;
  --text-on-dark-muted: rgba(255, 255, 255, 0.7);
  --border-color: #e8e6e1;
  --border-color-light: #f0eeea;
  --input-bg: #ffffff;
  --input-border: #e8e6e1;
  --shadow-color: rgba(0, 0, 0, 0.08);
  --nav-bg-scrolled: rgba(255, 255, 255, 0.97);
  --nav-text: #2d2d2d;
  --logo-filter: none;
  --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  --card-shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.12);

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Playfair Display', Georgia, serif;

  --fs-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --fs-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --fs-base: clamp(1rem, 0.9rem + 0.45vw, 1.125rem);
  --fs-lg: clamp(1.125rem, 1rem + 0.55vw, 1.25rem);
  --fs-xl: clamp(1.25rem, 1rem + 1vw, 1.75rem);
  --fs-2xl: clamp(1.75rem, 1.2rem + 2vw, 2.5rem);
  --fs-3xl: clamp(2.25rem, 1.5rem + 3vw, 3.5rem);
  --fs-hero: clamp(2.5rem, 1.5rem + 4.5vw, 4.5rem);

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 5rem;
  --space-section: clamp(4rem, 3rem + 5vw, 8rem);

  /* Layout */
  --container-max: 1200px;
  --container-padding: clamp(1rem, 2vw, 2rem);
  --nav-height: 80px;
  --border-radius: 8px;
  --border-radius-lg: 16px;

  /* Transitions */
  --transition-fast: 200ms ease;
  --transition-base: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 600ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-theme: 400ms ease;

  /* Shadows */
  --shadow-sm: 0 1px 3px var(--shadow-color);
  --shadow-md: 0 4px 12px var(--shadow-color);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.12);
  --shadow-gold: 0 4px 20px rgba(var(--color-gold-rgb), 0.3);
}

/* ---------- Dark Theme ---------- */

[data-theme="dark"] {
  --bg-primary: #1a1a1a;
  --bg-secondary: #222222;
  --bg-card: #2a2a2a;
  --bg-hero: #111111;
  --bg-dark-section: #111111;
  --bg-footer: #0d0d0d;
  --text-primary: #e8e6e1;
  --text-secondary: #b0b0b0;
  --text-muted: #777777;
  --text-on-dark: #e8e6e1;
  --text-on-dark-muted: rgba(232, 230, 225, 0.7);
  --border-color: #3a3a3a;
  --border-color-light: #2f2f2f;
  --input-bg: #2a2a2a;
  --input-border: #3a3a3a;
  --shadow-color: rgba(0, 0, 0, 0.3);
  --nav-bg-scrolled: rgba(26, 26, 26, 0.97);
  --nav-text: #e8e6e1;
  --logo-filter: brightness(0) invert(1);
  --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  --card-shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.4);
}

/* System preference detection (before JS loads) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg-primary: #1a1a1a;
    --bg-secondary: #222222;
    --bg-card: #2a2a2a;
    --bg-hero: #111111;
    --bg-dark-section: #111111;
    --bg-footer: #0d0d0d;
    --text-primary: #e8e6e1;
    --text-secondary: #b0b0b0;
    --text-muted: #777777;
    --text-on-dark: #e8e6e1;
    --text-on-dark-muted: rgba(232, 230, 225, 0.7);
    --border-color: #3a3a3a;
    --border-color-light: #2f2f2f;
    --input-bg: #2a2a2a;
    --input-border: #3a3a3a;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --nav-bg-scrolled: rgba(26, 26, 26, 0.97);
    --nav-text: #e8e6e1;
    --logo-filter: brightness(0) invert(1);
    --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    --card-shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.4);
  }
}

/* ---------- Reset & Base ---------- */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

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

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

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

ul {
  list-style: none;
}

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

/* ---------- Utilities ---------- */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

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

.section-tag {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-title {
  font-family: var(--font-heading);
  font-size: var(--fs-3xl);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: var(--space-sm);
}

.section-subtitle {
  font-size: var(--fs-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.875rem 2rem;
  font-family: var(--font-primary);
  font-size: var(--fs-sm);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--color-gold);
  color: #1a1a1a;
  border-color: var(--color-gold);
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -75%;
  width: 200%;
  height: 200%;
  background: linear-gradient(to right, transparent 0%, rgba(255,255,255,0.3) 50%, transparent 100%);
  transform: rotate(30deg);
  transition: left 0.6s ease;
}

.btn-primary:hover::after {
  left: 100%;
}

.btn-primary:hover {
  background: var(--color-gold-dark);
  border-color: var(--color-gold-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
}

.btn-outline {
  background: transparent;
  color: var(--text-on-dark);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.btn-full {
  width: 100%;
}

/* ---------- Navigation ---------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 var(--container-padding);
  transition: background-color var(--transition-base), box-shadow var(--transition-base);
  background-color: transparent;
}

.site-header.header-scrolled {
  background-color: var(--nav-bg-scrolled);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  max-width: var(--container-max);
  margin: 0 auto;
}

.nav-logo img {
  width: 130px;
  height: auto;
  transition: filter var(--transition-theme);
}

/* Logo in light mode on hero (before scroll) should be visible on dark bg */
.site-header:not(.header-scrolled) .nav-logo img {
  filter: brightness(0) invert(1);
}

.site-header.header-scrolled .nav-logo img {
  filter: var(--logo-filter);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-link {
  font-size: var(--fs-sm);
  font-weight: 500;
  position: relative;
  padding: 0.25rem 0;
  transition: color var(--transition-fast);
}

/* Nav link colors: on hero = white, after scroll = theme text */
.site-header:not(.header-scrolled) .nav-link {
  color: rgba(255, 255, 255, 0.85);
}

.site-header:not(.header-scrolled) .nav-link:hover,
.site-header:not(.header-scrolled) .nav-link.active {
  color: var(--color-gold);
}

.site-header.header-scrolled .nav-link {
  color: var(--nav-text);
}

.site-header.header-scrolled .nav-link:hover,
.site-header.header-scrolled .nav-link.active {
  color: var(--color-gold);
}

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

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

.nav-lang {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-left: var(--space-sm);
  padding-left: var(--space-sm);
  border-left: 1px solid rgba(255, 255, 255, 0.2);
}

.site-header.header-scrolled .nav-lang {
  border-left-color: var(--border-color);
}

.lang-btn {
  font-size: var(--fs-xs);
  font-weight: 600;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.site-header:not(.header-scrolled) .lang-btn {
  color: rgba(255, 255, 255, 0.6);
}

.site-header:not(.header-scrolled) .lang-btn.lang-active {
  color: var(--color-gold);
}

.site-header.header-scrolled .lang-btn {
  color: var(--text-muted);
}

.site-header.header-scrolled .lang-btn.lang-active {
  color: var(--color-gold);
}

.lang-separator {
  font-size: var(--fs-xs);
  opacity: 0.4;
}

.site-header:not(.header-scrolled) .lang-separator {
  color: #fff;
}

.site-header.header-scrolled .lang-separator {
  color: var(--text-muted);
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 30px;
  height: 30px;
  z-index: 1001;
}

.hamburger-line {
  display: block;
  width: 100%;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast);
}

.site-header.header-scrolled .hamburger-line {
  background: var(--nav-text);
}

.nav-toggle.is-open .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open .hamburger-line:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: var(--space-lg);
    padding: var(--space-2xl) var(--space-xl);
    background: var(--bg-primary);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.2);
    transform: translateX(100%);
    transition: transform var(--transition-base);
  }

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

  .nav-menu .nav-link {
    font-size: var(--fs-lg);
    color: var(--text-primary) !important;
  }

  .nav-menu .nav-link:hover,
  .nav-menu .nav-link.active {
    color: var(--color-gold) !important;
  }

  .nav-lang {
    border-left: none;
    margin-left: 0;
    padding-left: 0;
    margin-top: var(--space-sm);
  }

  .nav-menu .lang-btn {
    color: var(--text-muted) !important;
  }

  .nav-menu .lang-btn.lang-active {
    color: var(--color-gold) !important;
  }

  .nav-menu .lang-separator {
    color: var(--text-muted) !important;
  }
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-hero);
  overflow: hidden;
}

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

.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-gradient-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(var(--color-gold-rgb), 0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(var(--color-gold-rgb), 0.06) 0%, transparent 40%),
    radial-gradient(ellipse at 50% 80%, rgba(var(--color-gold-rgb), 0.04) 0%, transparent 50%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: var(--space-2xl) var(--container-padding);
  max-width: 900px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.5rem 1.25rem;
  background: rgba(var(--color-gold-rgb), 0.12);
  border: 1px solid rgba(var(--color-gold-rgb), 0.25);
  border-radius: 50px;
  margin-bottom: var(--space-lg);
}

.hero-badge span {
  font-size: var(--fs-xs);
  font-weight: 500;
  color: var(--color-gold);
  letter-spacing: 0.05em;
}

.badge-icon {
  font-size: 0.6rem;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: var(--fs-hero);
  color: var(--text-on-dark);
  line-height: 1.15;
  margin-bottom: var(--space-lg);
}

.title-line {
  display: block;
}

.hero-subtitle {
  font-size: var(--fs-lg);
  color: var(--text-on-dark-muted);
  max-width: 650px;
  margin: 0 auto var(--space-xl);
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-on-dark-muted);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--text-on-dark-muted);
  border-bottom: 2px solid var(--text-on-dark-muted);
  transform: rotate(45deg);
}

/* ---------- Services ---------- */

.services {
  padding: var(--space-section) 0;
  background-color: var(--bg-primary);
  transition: background-color var(--transition-theme);
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl) var(--space-lg);
  box-shadow: var(--card-shadow);
  transition: transform var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-theme);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--color-gold);
  transition: width var(--transition-base);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--card-shadow-hover);
}

.service-card:hover::before {
  width: 100%;
}

.service-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(var(--color-gold-rgb), 0.1);
  border-radius: 12px;
  margin-bottom: var(--space-md);
}

.service-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--color-gold);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-card-title {
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.service-card-desc {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.6;
}

.service-features {
  margin-bottom: var(--space-md);
}

.service-features li {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  padding: 0.35rem 0;
  padding-left: 1.25rem;
  position: relative;
}

.service-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.7rem;
  width: 6px;
  height: 6px;
  background: var(--color-gold);
  border-radius: 50%;
}

.service-cta {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-gold);
  transition: color var(--transition-fast);
}

.service-cta:hover {
  color: var(--color-gold-dark);
}

/* ---------- Stats Bar ---------- */

.stats-bar {
  background: var(--bg-dark-section);
  padding: var(--space-2xl) 0;
  transition: background-color var(--transition-theme);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  text-align: center;
}

@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat-item {
  padding: var(--space-sm);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: var(--fs-3xl);
  color: var(--color-gold);
  font-weight: 700;
  line-height: 1;
}

.stat-suffix {
  font-family: var(--font-heading);
  font-size: var(--fs-2xl);
  color: var(--color-gold);
  font-weight: 700;
}

.stat-label {
  display: block;
  font-size: var(--fs-sm);
  color: var(--text-on-dark-muted);
  margin-top: var(--space-xs);
}

/* ---------- About ---------- */

.about {
  padding: var(--space-section) 0;
  background-color: var(--bg-secondary);
  transition: background-color var(--transition-theme);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

@media (min-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.about-text {
  font-size: var(--fs-base);
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.7;
}

.about-highlights {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--fs-base);
  font-weight: 500;
  color: var(--text-primary);
}

.highlight-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: var(--color-gold);
  color: #1a1a1a;
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

/* Timeline */
.experience-timeline {
  position: relative;
  padding-left: var(--space-xl);
}

.experience-timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-gold), rgba(var(--color-gold-rgb), 0.2));
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-xl);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-xl) + 4px);
  top: 4px;
  width: 10px;
  height: 10px;
  background: var(--color-gold);
  border-radius: 50%;
  border: 2px solid var(--bg-secondary);
}

.timeline-year {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--color-gold);
  margin-bottom: 0.25rem;
}

.timeline-desc {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}

/* ---------- Portfolio ---------- */

.portfolio {
  padding: var(--space-section) 0;
  background-color: var(--bg-primary);
  transition: background-color var(--transition-theme);
}

.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  color: var(--color-gold);
  border-color: var(--color-gold);
}

.filter-btn.active {
  background: var(--color-gold);
  color: #1a1a1a;
  border-color: var(--color-gold);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .portfolio-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.portfolio-card {
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: transform var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-theme);
}

.portfolio-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--card-shadow-hover);
}

.portfolio-card-image {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.portfolio-placeholder-img {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-dark-section) 0%, #3a3a3a 100%);
}

.portfolio-placeholder-img svg {
  width: 48px;
  height: 48px;
  stroke: var(--color-gold);
  fill: none;
  stroke-width: 1.5;
  opacity: 0.6;
}

.portfolio-overlay {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
}

.portfolio-category {
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--color-gold);
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
}

.portfolio-card-body {
  padding: var(--space-md) var(--space-lg);
}

.portfolio-card-body h3 {
  font-family: var(--font-heading);
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.portfolio-card-body p {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
  line-height: 1.6;
}

.portfolio-card-body p a {
  color: var(--color-gold);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.portfolio-card-body p a:hover {
  color: var(--color-gold-dark);
  text-decoration: underline;
}

.portfolio-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.tag {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  background: var(--bg-secondary);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  transition: background-color var(--transition-theme);
}

/* ---------- Contact ---------- */

.contact {
  padding: var(--space-section) 0;
  background-color: var(--bg-secondary);
  transition: background-color var(--transition-theme);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
}

@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: 5fr 7fr;
    align-items: start;
  }
}

.contact-text {
  font-size: var(--fs-base);
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  line-height: 1.7;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.contact-detail-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.contact-detail-item svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-gold);
  fill: none;
  stroke-width: 1.5;
  flex-shrink: 0;
}

.detail-label {
  display: block;
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.contact-detail-item a {
  font-size: var(--fs-base);
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

.contact-detail-item a:hover {
  color: var(--color-gold);
}

/* Contact Form */
.contact-form-wrapper {
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--card-shadow);
  transition: background-color var(--transition-theme);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1px solid var(--input-border);
  border-radius: var(--border-radius);
  font-family: var(--font-primary);
  font-size: var(--fs-base);
  color: var(--text-primary);
  background: var(--input-bg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-theme);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(var(--color-gold-rgb), 0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group input.is-valid,
.form-group textarea.is-valid {
  border-color: #4caf50;
}

.form-group input.is-invalid,
.form-group textarea.is-invalid {
  border-color: #f44336;
}

.form-status {
  margin-top: var(--space-sm);
  font-size: var(--fs-sm);
  text-align: center;
}

.form-status-success {
  color: #4caf50;
}

.form-status-error {
  color: #f44336;
}

.btn-loading {
  align-items: center;
  gap: var(--space-xs);
}

.btn-loading[hidden] {
  display: none;
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--bg-footer);
  padding: var(--space-2xl) 0 var(--space-lg);
  transition: background-color var(--transition-theme);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer-logo {
  width: 100px;
  height: auto;
  margin-bottom: var(--space-sm);
  filter: brightness(0) invert(1);
}

.footer-desc {
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.6;
}

.footer-grid h4 {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links a,
.footer-contact a {
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition-fast);
  display: block;
  padding: 0.2rem 0;
}

.footer-links a:hover,
.footer-contact a:hover {
  color: var(--color-gold);
}

.footer-services li {
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.5);
  padding: 0.2rem 0;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-lg);
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer-bottom p {
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.35);
}

.footer-lang a {
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.35);
  transition: color var(--transition-fast);
}

.footer-lang a:hover,
.footer-lang .lang-active {
  color: var(--color-gold);
}

/* ---------- Theme Toggle (Floating) ---------- */

.theme-toggle {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 999;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform var(--transition-fast), background-color var(--transition-theme), border-color var(--transition-theme), box-shadow var(--transition-fast);
}

.theme-toggle:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-lg);
}

.theme-toggle svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-gold);
  fill: none;
  stroke-width: 1.5;
  transition: transform var(--transition-base);
}

.theme-toggle .icon-sun {
  display: block;
}

.theme-toggle .icon-moon {
  display: none;
}

/* When in dark mode, show moon, hide sun */
[data-theme="dark"] .theme-toggle .icon-sun {
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-moon {
  display: block;
}

/* System dark preference (before JS sets data-theme) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon-sun {
    display: none;
  }
  :root:not([data-theme="light"]) .theme-toggle .icon-moon {
    display: block;
  }
}

/* ---------- Mobile overlay ---------- */

.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.nav-overlay.is-open {
  opacity: 1;
  visibility: visible;
}