/* ============================================
   ALVERA ALÜMİNYUM — Ana Stil Dosyası
   ============================================ */

:root {
  --color-primary: #1F2937;
  --color-secondary: #C0C0C0;
  --color-accent: #0EA5E9;
  --color-accent-dark: #0284C7;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F5F5F5;
  --color-text: #1F2937;
  --color-text-muted: #6B7280;
  --color-border: #E5E7EB;
  --color-white: #FFFFFF;
  --color-dark: #111827;
  --glass-bg: rgba(255, 255, 255, 0.12);
  --glass-border: rgba(255, 255, 255, 0.2);
  --shadow-sm: 0 1px 3px rgba(31, 41, 55, 0.08);
  --shadow-md: 0 4px 20px rgba(31, 41, 55, 0.1);
  --shadow-lg: 0 12px 40px rgba(31, 41, 55, 0.14);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --font-display: "Outfit", sans-serif;
  --font-body: "DM Sans", sans-serif;
  --header-height: 80px;
  --header-height-scrolled: 64px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container: 1200px;
}

[data-theme="dark"] {
  --color-bg: #0F172A;
  --color-bg-alt: #1E293B;
  --color-text: #F1F5F9;
  --color-text-muted: #94A3B8;
  --color-border: #334155;
  --color-primary: #F1F5F9;
  --color-dark: #020617;
  --glass-bg: rgba(15, 23, 42, 0.6);
  --glass-border: rgba(255, 255, 255, 0.08);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);
}

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

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

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
}

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

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

ul, ol {
  list-style: none;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: pointer;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
}

.section-label {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(14, 165, 233, 0.35);
}

.btn-outline {
  border: 1.5px solid var(--color-white);
  color: var(--color-white);
  background: transparent;
}

.btn-outline:hover {
  background: var(--color-white);
  color: var(--color-dark);
}

.btn-dark {
  background: var(--color-primary);
  color: var(--color-white);
}

[data-theme="dark"] .btn-dark {
  background: var(--color-accent);
}

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

.btn-ghost {
  border: 1.5px solid var(--color-border);
  color: var(--color-text);
}

.btn-ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1rem;
}

/* ---- Loading Screen ---- */
.loading-screen {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: var(--color-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 24px;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loading-logo {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.15em;
}

.loading-logo span {
  color: var(--color-accent);
}

.loading-bar {
  width: 160px;
  height: 2px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 2px;
  overflow: hidden;
}

.loading-bar-inner {
  width: 0;
  height: 100%;
  background: var(--color-accent);
  animation: loadingProgress 1.4s ease forwards;
}

@keyframes loadingProgress {
  to { width: 100%; }
}

/* ---- Scroll Progress ---- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--color-accent), var(--color-secondary));
  z-index: 10001;
  transition: width 0.1s linear;
}

/* ---- Header ---- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  transition: all var(--transition);
}

.header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: transparent;
  transition: background var(--transition), backdrop-filter var(--transition);
}

.header.scrolled {
  height: var(--header-height-scrolled);
}

.header.scrolled::before {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .header.scrolled::before {
  background: rgba(15, 23, 42, 0.92);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 10;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-white);
  transition: color var(--transition);
}

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

.header.scrolled .logo-text {
  color: var(--color-primary);
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  transition: color var(--transition);
  letter-spacing: 0.01em;
}

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

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

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

/* Mega Menu */
.mega-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 520px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 28px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 24px;
}

.nav-item:hover .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.mega-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--color-text);
  transition: all var(--transition);
}

.mega-menu a:hover {
  background: var(--color-bg-alt);
  color: var(--color-accent);
}

.mega-menu a i {
  color: var(--color-accent);
  width: 18px;
  text-align: center;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 10;
}

.header-icon-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--color-white);
  font-size: 1rem;
  transition: all var(--transition);
}

.header.scrolled .header-icon-btn {
  color: var(--color-text);
}

.header-icon-btn:hover {
  background: rgba(14, 165, 233, 0.15);
  color: var(--color-accent);
}

.header .btn-primary {
  padding: 10px 22px;
  font-size: 0.8rem;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
  z-index: 10;
}

.hamburger span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition);
}

.header.scrolled .hamburger span {
  background: var(--color-primary);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---- Search Overlay ---- */
.search-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(17, 24, 39, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.search-overlay.active {
  opacity: 1;
  visibility: visible;
}

.search-form {
  width: 90%;
  max-width: 600px;
  position: relative;
}

.search-form input {
  width: 100%;
  padding: 20px 60px 20px 24px;
  font-size: 1.25rem;
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
}

.search-form input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.search-form button {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-accent);
  font-size: 1.25rem;
}

.search-close {
  position: absolute;
  top: 32px;
  right: 32px;
  color: var(--color-white);
  font-size: 1.5rem;
  transition: color var(--transition);
}

.search-close:hover {
  color: var(--color-accent);
}

.search-results {
  margin-top: 16px;
  max-height: 300px;
  overflow-y: auto;
}

.search-result-item {
  display: block;
  padding: 12px 16px;
  color: rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.search-result-item:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-accent);
}

/* ---- Hero Slider ---- */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
}

.hero-slides {
  position: absolute;
  inset: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 1s ease, visibility 1s ease;
}

.hero-slide.active {
  opacity: 1;
  visibility: visible;
}

.hero-slide-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  transition: transform 8s ease;
}

.hero-slide.active .hero-slide-bg {
  transform: scale(1);
}

.hero-slide-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(17, 24, 39, 0.85) 0%,
    rgba(17, 24, 39, 0.55) 50%,
    rgba(17, 24, 39, 0.4) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--color-white);
  line-height: 1.1;
  margin-bottom: 20px;
  opacity: 0;
  transform: translateY(30px);
}

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

.hero-slide.active .hero-brand {
  animation: fadeUp 0.8s 0.2s ease forwards;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 16px;
  max-width: 560px;
  opacity: 0;
  transform: translateY(30px);
}

.hero-slide.active .hero-title {
  animation: fadeUp 0.8s 0.4s ease forwards;
}

.hero-desc {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.7);
  max-width: 480px;
  margin-bottom: 36px;
  opacity: 0;
  transform: translateY(30px);
}

.hero-slide.active .hero-desc {
  animation: fadeUp 0.8s 0.55s ease forwards;
}

.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(30px);
}

.hero-slide.active .hero-btns {
  animation: fadeUp 0.8s 0.7s ease forwards;
}

.hero-nav {
  position: absolute;
  bottom: 48px;
  left: 0;
  right: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.hero-arrows {
  display: flex;
  gap: 12px;
}

.hero-arrow {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  color: var(--color-white);
  font-size: 1rem;
  transition: all var(--transition);
  backdrop-filter: blur(8px);
}

.hero-arrow:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.hero-dots {
  display: flex;
  gap: 10px;
}

.hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transition: all var(--transition);
  cursor: pointer;
}

.hero-dot.active {
  background: var(--color-accent);
  width: 28px;
  border-radius: 5px;
}

/* ---- About Section ---- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/5;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-image-accent {
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 60%;
  height: 40%;
  border: 3px solid var(--color-accent);
  border-radius: var(--radius-lg);
  z-index: -1;
}

.about-content .section-label {
  text-align: left;
}

.about-content .section-title {
  text-align: left;
}

.about-text {
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 32px;
}

.about-feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.about-feature i {
  color: var(--color-accent);
  font-size: 1.1rem;
  margin-top: 3px;
}

.about-feature span {
  font-weight: 500;
  font-size: 0.95rem;
}

/* ---- Counters ---- */
.counters {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
  padding: 60px 0;
}

.counter-item {
  text-align: center;
  padding: 32px 16px;
}

.counter-number {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.2;
  margin-bottom: 8px;
}

.counter-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ---- Product Cards ---- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 48px;
}

.filter-btn {
  padding: 8px 20px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

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

.products-grid,
.services-grid,
.projects-grid,
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}

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

.card-image {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.card:hover .card-image img {
  transform: scale(1.08);
}

.card-body {
  padding: 24px;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-primary);
}

.card-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent);
  transition: gap var(--transition);
}

.card-link:hover {
  gap: 12px;
}

.card-meta {
  display: flex;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.card-meta i {
  margin-right: 4px;
  color: var(--color-accent);
}

/* Service Cards */
.service-card {
  text-align: center;
  padding: 40px 28px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

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

.service-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.1), rgba(14, 165, 233, 0.05));
  border-radius: var(--radius-md);
  font-size: 1.5rem;
  color: var(--color-accent);
  transition: all var(--transition);
}

.service-card:hover .service-icon {
  background: var(--color-accent);
  color: var(--color-white);
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

/* Project Cards */
.project-card .card-image {
  aspect-ratio: 4/3;
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(17, 24, 39, 0.8) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  opacity: 0;
  transition: opacity var(--transition);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

.project-overlay h3 {
  font-family: var(--font-display);
  color: var(--color-white);
  font-size: 1.2rem;
  margin-bottom: 4px;
}

.project-overlay p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.85rem;
}

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

/* ---- Testimonials ---- */
.testimonials-slider {
  position: relative;
  overflow: hidden;
  max-width: 800px;
  margin: 0 auto;
}

.testimonial-track {
  display: flex;
  transition: transform 0.6s ease;
}

.testimonial-slide {
  min-width: 100%;
  padding: 0 16px;
}

.testimonial-card {
  text-align: center;
  padding: 48px 40px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.testimonial-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 20px;
  border: 3px solid var(--color-accent);
}

.testimonial-stars {
  color: #F59E0B;
  margin-bottom: 16px;
  font-size: 0.9rem;
  letter-spacing: 2px;
}

.testimonial-text {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  font-style: italic;
  margin-bottom: 24px;
  line-height: 1.8;
}

.testimonial-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
}

.testimonial-company {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.testimonial-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 32px;
}

.testimonial-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-border);
  cursor: pointer;
  transition: all var(--transition);
}

.testimonial-dot.active {
  background: var(--color-accent);
  width: 24px;
  border-radius: 4px;
}

/* ---- References Carousel ---- */
.refs-carousel {
  overflow: hidden;
  position: relative;
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}

.refs-track {
  display: flex;
  gap: 48px;
  animation: scrollRefs 30s linear infinite;
  width: max-content;
}

.refs-track:hover {
  animation-play-state: paused;
}

.ref-logo {
  flex-shrink: 0;
  width: 160px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: all var(--transition);
  filter: grayscale(1);
  opacity: 0.6;
}

.ref-logo:hover {
  filter: grayscale(0);
  opacity: 1;
  border-color: var(--color-accent);
  transform: translateY(-4px);
}

.ref-logo span {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-text);
  letter-spacing: 0.05em;
  text-align: center;
}

@keyframes scrollRefs {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ---- CTA Banner ---- */
.cta-banner {
  position: relative;
  padding: 100px 0;
  background: linear-gradient(135deg, #1F2937 0%, #111827 50%, #0C4A6E 100%);
  overflow: hidden;
  text-align: center;
}

.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-banner .section-title {
  color: var(--color-white);
}

.cta-banner .section-desc {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 32px;
}

.cta-banner .section-header {
  position: relative;
  z-index: 1;
}

/* ---- Blog Cards ---- */
.blog-card .card-image {
  aspect-ratio: 16/9;
}

.blog-date {
  font-size: 0.8rem;
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 6px;
}

.blog-category {
  display: inline-block;
  padding: 3px 10px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: rgba(14, 165, 233, 0.1);
  color: var(--color-accent);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
}

/* ---- Page Hero (inner pages) ---- */
.page-hero {
  position: relative;
  padding: 160px 0 80px;
  background: linear-gradient(135deg, #1F2937 0%, #111827 60%, #0C4A6E 100%);
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.page-hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
}

.page-hero p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.05rem;
  max-width: 520px;
  margin: 0 auto;
}

/* ---- Breadcrumb ---- */
.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition);
}

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

.breadcrumb i {
  font-size: 0.65rem;
}

/* ---- Detail Pages ---- */
.detail-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  margin-bottom: 48px;
}

.detail-gallery-main {
  grid-column: 1 / -1;
  aspect-ratio: 21/9;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  background: var(--color-bg-alt);
  min-height: 220px;
}

.detail-gallery-main img,
.detail-gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.detail-gallery-thumb {
  aspect-ratio: 16/10;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  background: var(--color-bg-alt);
  min-height: 120px;
}

.detail-gallery-thumb:hover img,
.detail-gallery-main:hover img {
  transform: scale(1.05);
}

.detail-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 48px;
}

.detail-info h2 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.detail-info p {
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.detail-sidebar {
  position: sticky;
  top: calc(var(--header-height-scrolled) + 24px);
  align-self: start;
}

.detail-sidebar-card {
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: 28px;
  margin-bottom: 24px;
}

.detail-sidebar-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.spec-list li,
.info-list li {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
}

.spec-list li:last-child,
.info-list li:last-child {
  border-bottom: none;
}

.spec-list .label,
.info-list .label {
  color: var(--color-text-muted);
}

.spec-list .value,
.info-list .value {
  font-weight: 600;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.9rem;
}

.feature-list i {
  color: var(--color-accent);
  margin-top: 3px;
}

.sidebar-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.btn-whatsapp {
  background: #25D366;
  color: var(--color-white);
}

.btn-whatsapp:hover {
  background: #1DA851;
  transform: translateY(-2px);
}

/* ---- Accordion / FAQ ---- */
.accordion-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
  overflow: hidden;
}

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 16px 20px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text);
  text-align: left;
  transition: background var(--transition);
}

.accordion-header:hover {
  background: var(--color-bg-alt);
}

.accordion-header i {
  transition: transform var(--transition);
  color: var(--color-accent);
}

.accordion-item.active .accordion-header i {
  transform: rotate(180deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.accordion-body-inner {
  padding: 0 20px 16px;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* ---- Process Steps ---- */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin: 40px 0;
  counter-reset: step;
}

.process-step {
  text-align: center;
  position: relative;
  counter-increment: step;
}

.process-step::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: rgba(14, 165, 233, 0.15);
  display: block;
  margin-bottom: 8px;
}

.process-step h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.process-step p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ---- Contact ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
}

.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group.full {
  grid-column: 1 / -1;
}

.form-group label {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text);
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: 14px 16px;
  background: var(--color-bg-alt);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-accent);
}

.form-group input.error,
.form-group textarea.error,
.form-group select.error {
  border-color: #EF4444;
}

.form-error {
  font-size: 0.75rem;
  color: #EF4444;
  display: none;
}

.form-group input.error + .form-error,
.form-group textarea.error + .form-error,
.form-group select.error + .form-error {
  display: block;
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 32px;
}

.contact-info-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(14, 165, 233, 0.1);
  border-radius: var(--radius-sm);
  color: var(--color-accent);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-info-item h4 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.contact-info-item p,
.contact-info-item a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.contact-info-item a:hover {
  color: var(--color-accent);
}

.contact-map {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16/10;
  border: 1px solid var(--color-border);
}

.contact-map iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* ---- Gallery Masonry ---- */
.gallery-grid {
  columns: 3;
  column-gap: 16px;
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: 16px;
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  display: block;
  transition: transform 0.5s ease;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: rgba(17, 24, 39, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

.gallery-item:hover .gallery-item-overlay {
  opacity: 1;
}

.gallery-item-overlay i {
  color: var(--color-white);
  font-size: 1.5rem;
}

/* ---- Lightbox ---- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0, 0, 0, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox img {
  max-width: 90%;
  max-height: 85vh;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  color: var(--color-white);
  font-size: 1.5rem;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all var(--transition);
  background: rgba(255, 255, 255, 0.1);
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
  background: var(--color-accent);
}

.lightbox-close {
  top: 24px;
  right: 24px;
}

.lightbox-prev {
  left: 24px;
  top: 50%;
  transform: translateY(-50%);
}

.lightbox-next {
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
}

/* ---- About Page Extra ---- */
.mission-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.mission-card {
  padding: 36px 28px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.mission-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.mission-card i {
  font-size: 2rem;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.mission-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.mission-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ---- Footer ---- */
.footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.7);
  padding-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 60px;
}

.footer-brand .logo-text {
  color: var(--color-white);
  margin-bottom: 16px;
  display: inline-block;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.footer-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 20px;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 0.9rem;
  transition: all var(--transition);
}

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

.footer-contact li {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
  font-size: 0.9rem;
}

.footer-contact i {
  color: var(--color-accent);
  margin-top: 3px;
  width: 16px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-bottom p {
  font-size: 0.85rem;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  font-size: 0.85rem;
  transition: all var(--transition);
}

.footer-social a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

/* ---- Floating Social ---- */
.float-social {
  position: fixed;
  right: 20px;
  bottom: 100px;
  z-index: 900;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.float-social a {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--color-white);
  font-size: 1.1rem;
  box-shadow: var(--shadow-md);
  transition: all var(--transition);
  transform: translateX(0);
}

.float-social a:hover {
  transform: translateX(-4px) scale(1.1);
}

.float-whatsapp { background: #25D366; }
.float-instagram { background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); }
.float-facebook { background: #1877F2; }
.float-linkedin { background: #0A66C2; }

/* ---- Back to Top ---- */
.back-to-top {
  position: fixed;
  right: 20px;
  bottom: 24px;
  z-index: 900;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: 50%;
  font-size: 1rem;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-accent-dark);
  transform: translateY(-4px);
}

/* ---- Cookie Banner ---- */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9500;
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  transform: translateY(100%);
  transition: transform 0.4s ease;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
}

.cookie-banner.show {
  transform: translateY(0);
}

.cookie-banner p {
  font-size: 0.875rem;
  flex: 1;
}

.cookie-banner p a {
  color: var(--color-accent);
  text-decoration: underline;
}

.cookie-actions {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}

/* ---- Toast ---- */
.toast-container {
  position: fixed;
  top: 100px;
  right: 24px;
  z-index: 10002;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  padding: 14px 24px;
  background: var(--color-dark);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  transform: translateX(120%);
  transition: transform 0.4s ease;
  max-width: 360px;
}

.toast.show {
  transform: translateX(0);
}

.toast.success i { color: #22C55E; }
.toast.error i { color: #EF4444; }
.toast.info i { color: var(--color-accent); }

/* ---- 404 ---- */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, #1F2937, #0C4A6E);
  padding: 40px 24px;
}

.error-page h1 {
  font-family: var(--font-display);
  font-size: clamp(6rem, 15vw, 10rem);
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 8px;
}

.error-page h2 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: var(--color-white);
  margin-bottom: 12px;
}

.error-page p {
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 32px;
  max-width: 400px;
}

/* ---- Similar Items ---- */
.similar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ---- Share Buttons ---- */
.share-buttons {
  display: flex;
  gap: 10px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.share-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  transition: all var(--transition);
}

.share-btn:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

/* ---- Blog Detail ---- */
.blog-detail-cover {
  aspect-ratio: 21/9;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 40px;
}

.blog-detail-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-detail-meta {
  display: flex;
  gap: 20px;
  align-items: center;
  margin-bottom: 24px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.blog-detail-meta i {
  color: var(--color-accent);
  margin-right: 4px;
}

.blog-detail-content {
  max-width: 780px;
  margin: 0 auto;
}

.blog-detail-content h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 32px 0 12px;
}

.blog-detail-content p {
  color: var(--color-text-muted);
  margin-bottom: 16px;
  line-height: 1.8;
}

.blog-detail-content ul {
  margin: 0 0 16px 20px;
  list-style: disc;
}

.blog-detail-content ul li {
  color: var(--color-text-muted);
  margin-bottom: 6px;
}

/* ---- Utility ---- */
.text-center { text-align: center; }
.mt-40 { margin-top: 40px; }
.mb-40 { margin-bottom: 40px; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}