/* ============================================
   AYOVEX INTERIOR - Premium Interior Design
   Black & White Luxury Theme
   ============================================ */

html {
  overflow-x: hidden;
}

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

:root {
  --white: #ffffff;
  --black: #000000;
  --gray-50: #fafafa;
  --gray-100: #f5f5f5;
  --gray-200: #e5e5e5;
  --gray-300: #d4d4d4;
  --gray-400: #a3a3a3;
  --gray-500: #737373;
  --gray-600: #525252;
  --gray-700: #404040;
  --gray-800: #262626;
  --gray-900: #171717;
  --gray-950: #0a0a0a;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-serif: Georgia, 'Times New Roman', serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-sans);
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 120px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 16px;
  color: var(--black);
}

.section-desc {
  font-size: 1.1rem;
  color: var(--gray-500);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  border-radius: 50px;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

.btn-primary:hover {
  background: var(--gray-800);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.4);
}

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

.btn-full {
  width: 100%;
}

/* ============================================
   LOADER
   ============================================ */
.loader-content {
  text-align: center;
}

.loader-logo {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 3rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 8px;
}

.loader-sub {
  font-size: 0.75rem;
  letter-spacing: 6px;
  color: var(--gray-400);
  margin-top: 4px;
}

.loader-bar {
  width: 120px;
  height: 2px;
  background: var(--gray-800);
  margin: 32px auto 0;
  border-radius: 2px;
  overflow: hidden;
}

.loader-bar-fill {
  width: 0%;
  height: 100%;
  background: var(--white);
  animation: loaderFill 1.8s ease forwards;
}

.loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  animation: loaderFade 0.6s ease 2.2s forwards;
}

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

@keyframes loaderFade {
  to {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 20px 0;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 12px 0;
  box-shadow: 0 1px 20px rgba(0,0,0,0.06);
}

.nav-toggle.active span {
  background: var(--black) !important;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo-main {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--white);
  transition: var(--transition);
}

.logo-sub {
  font-size: 0.55rem;
  letter-spacing: 5px;
  color: var(--gray-400);
  margin-top: 2px;
  transition: var(--transition);
}

.navbar.scrolled .logo-main {
  color: var(--black);
}

.navbar.scrolled .logo-sub {
  color: var(--gray-500);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  padding: 8px 16px;
  border-radius: 50px;
  transition: var(--transition);
}
.nav-link:hover,
.nav-link.active {
  color: var(--white);
  background: rgba(255,255,255,0.1);
}

.navbar.scrolled .nav-link {
  color: var(--gray-600);
}

.navbar.scrolled .nav-link:hover,
.navbar.scrolled .nav-link.active {
  color: var(--black);
  background: var(--gray-100);
}

.nav-cta {
  background: var(--white);
  color: var(--black) !important;
  padding: 10px 24px !important;
  font-weight: 600 !important;
  font-size: 0.8125rem;
  border-radius: 50px;
  margin-left: 8px;
}

.nav-cta:hover {
  background: var(--gray-100) !important;
  transform: translateY(-1px);
}

.navbar.scrolled .nav-cta {
  background: var(--black) !important;
  color: var(--white) !important;
}

.navbar.scrolled .nav-cta:hover {
  background: var(--gray-800) !important;
}

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: var(--transition);
  border-radius: 2px;
}

.navbar.scrolled .nav-toggle span {
  background: var(--black);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 700px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--gray-950) 0%, var(--gray-800) 50%, var(--gray-900) 100%);
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  transition: transform 8s ease;
  will-change: transform;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.4) 0%,
    rgba(0,0,0,0.2) 50%,
    rgba(0,0,0,0.6) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: 0 24px;
}

.hero-tag {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 24px;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 600;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--gray-300);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   ABOUT
   ============================================ */
.about {
  background: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  margin-bottom: 80px;
}

.about-text {
  font-size: 1rem;
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 32px;
}

.about-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-700);
}

.about-feature svg {
  color: var(--black);
  flex-shrink: 0;
}

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

.about-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-lg);
  display: block;
}

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.stat-card {
  text-align: center;
  padding: 40px 24px;
  background: var(--gray-50);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.stat-number {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 700;
  color: var(--black);
  display: inline;
}

.stat-plus {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  color: var(--black);
  display: inline;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-top: 8px;
  font-weight: 500;
}

/* ============================================
   SERVICES
   ============================================ */
.services {
  background: var(--gray-50);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--white);
  padding: 36px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--black);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

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

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 56px;
  height: 56px;
  background: var(--gray-50);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  transition: var(--transition);
}

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

.service-icon svg {
  transition: var(--transition);
}

.service-card:hover .service-icon svg {
  stroke: var(--white);
}

.service-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--black);
}

.service-card p {
  font-size: 0.875rem;
  color: var(--gray-500);
  line-height: 1.6;
  margin-bottom: 16px;
}

.service-link {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--black);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}

.service-link:hover {
  gap: 8px;
}

/* ============================================
   PORTFOLIO
   ============================================ */
.portfolio {
  background: var(--white);
}

.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 24px;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--gray-500);
  background: transparent;
  border: 1.5px solid var(--gray-200);
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
}

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

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

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.portfolio-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-slow);
}

.portfolio-item.hidden {
  display: none;
}

.portfolio-image {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: var(--radius-lg);
  cursor: pointer;
}

.portfolio-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

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

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  opacity: 0;
  transition: var(--transition);
}

.portfolio-image:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-overlay h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 4px;
}

.portfolio-overlay p {
  font-size: 0.8rem;
  color: var(--gray-300);
  margin-bottom: 12px;
}

.portfolio-view {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--black);
  background: var(--white);
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  width: fit-content;
}

.portfolio-view:hover {
  background: var(--gray-100);
  transform: translateY(-1px);
}

/* ============================================
   LIGHTBOX
   ============================================ */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.95);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

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

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 24px;
  font-size: 2rem;
  color: var(--white);
  background: none;
  border: none;
  cursor: pointer;
  z-index: 10;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: var(--transition);
}

.lightbox-close:hover {
  background: rgba(255,255,255,0.1);
}

.lightbox-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  max-width: 1000px;
  width: 90%;
  max-height: 80vh;
  align-items: center;
}

.lightbox-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
}

.lightbox-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.lightbox-info h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--white);
  margin-bottom: 8px;
}

.lightbox-location {
  font-size: 0.85rem;
  color: var(--gray-400);
  margin-bottom: 4px;
}

.lightbox-meta {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}

.lightbox-index {
  font-size: 0.75rem;
  color: var(--gray-500);
  letter-spacing: 1px;
}

.lightbox-desc {
  font-size: 0.9rem;
  color: var(--gray-300);
  line-height: 1.7;
  margin-bottom: 32px;
}

.lightbox-nav {
  display: flex;
  gap: 12px;
}

.lightbox-prev,
.lightbox-next {
  padding: 10px 20px;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--white);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
}

.lightbox-prev:hover,
.lightbox-next:hover {
  background: rgba(255,255,255,0.2);
}

/* ============================================
   PROCESS
   ============================================ */
.process {
  background: var(--black);
}

.process .section-tag {
  color: var(--gray-500);
}

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

.process .section-desc {
  color: var(--gray-400);
}

.process-timeline {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  position: relative;
}

.process-timeline::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 15%;
  right: 15%;
  height: 1px;
  background: var(--gray-800);
}

.process-step {
  text-align: center;
  position: relative;
  padding-top: 32px;
}

.step-number {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
  position: relative;
}

.step-number::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 8px;
  height: 8px;
  background: var(--white);
  border-radius: 50%;
}

.step-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 10px;
}

.step-content p {
  font-size: 0.85rem;
  color: var(--gray-400);
  line-height: 1.7;
}

/* ============================================
   WHY CHOOSE US
   ============================================ */
.why {
  background: var(--gray-50);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.why-card {
  background: var(--white);
  padding: 32px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-100);
  text-align: center;
  transition: var(--transition);
}

.why-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.why-icon {
  width: 52px;
  height: 52px;
  background: var(--gray-50);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  transition: var(--transition);
}

.why-card:hover .why-icon {
  background: var(--black);
}

.why-icon svg {
  transition: var(--transition);
}

.why-card:hover .why-icon svg {
  stroke: var(--white);
}

.why-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--black);
  margin-bottom: 8px;
}

.why-card p {
  font-size: 0.825rem;
  color: var(--gray-500);
  line-height: 1.6;
}

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonials {
  background: var(--white);
}

.testimonial-carousel {
  position: relative;
  overflow: hidden;
}

.testimonial-track {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.testimonial-card {
  min-width: calc(33.333% - 16px);
  margin: 0 8px;
  background: var(--gray-50);
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid var(--gray-100);
}

.testimonial-stars {
  font-size: 1rem;
  color: var(--black);
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.testimonial-text {
  font-size: 0.9rem;
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: 24px;
  font-style: italic;
}

/* ============================================
   CLIENTS
   ============================================ */
.clients {
  background: var(--white);
}

.clients-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  align-items: center;
}

.client-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: var(--transition);
}

.client-logo span {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--gray-400);
  letter-spacing: 1px;
  text-transform: uppercase;
  line-height: 1.4;
}

.client-logo:hover {
  border-color: var(--black);
}

.client-logo:hover span {
  color: var(--black);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  background: var(--black);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
}

.testimonial-author strong {
  font-size: 0.875rem;
  color: var(--black);
  display: block;
}

.testimonial-author span {
  font-size: 0.75rem;
  color: var(--gray-500);
}

.testimonial-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 40px;
}

.testimonial-prev,
.testimonial-next {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gray-100);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  color: var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.testimonial-prev:hover,
.testimonial-next:hover {
  background: var(--black);
  color: var(--white);
}

.testimonial-dots {
  display: flex;
  gap: 8px;
}

.testimonial-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gray-300);
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

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

/* ============================================
   FAQ
   ============================================ */
.faq {
  background: var(--gray-50);
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--gray-200);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  color: var(--black);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--gray-600);
}

.faq-question svg {
  transition: var(--transition);
  flex-shrink: 0;
  color: var(--gray-400);
}

.faq-item.active .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer p {
  padding: 0 0 24px;
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.7;
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
  background: var(--white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

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

.form-group {
  position: relative;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 16px;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--black);
  background: var(--gray-50);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-md);
  outline: none;
  transition: var(--transition);
  -webkit-appearance: none;
}

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

.form-group label {
  position: absolute;
  top: 16px;
  left: 16px;
  font-size: 0.875rem;
  color: var(--gray-400);
  pointer-events: none;
  transition: var(--transition);
  background: transparent;
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
  top: -8px;
  left: 12px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--black);
  background: var(--white);
  padding: 0 4px;
}

.form-group select {
  cursor: pointer;
}

.form-group select:valid {
  color: var(--black);
}

.form-group select:invalid {
  color: var(--gray-400);
}

.date-label {
  position: absolute;
  top: -8px;
  left: 12px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--gray-500);
  background: var(--white);
  padding: 0 4px;
}

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

.contact-info-card {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 24px;
}

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

.contact-icon {
  width: 44px;
  height: 44px;
  background: var(--gray-50);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-detail strong {
  font-size: 0.85rem;
  color: var(--black);
  display: block;
  margin-bottom: 2px;
}

.contact-detail a,
.contact-detail span {
  font-size: 0.825rem;
  color: var(--gray-500);
  display: block;
}

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

.contact-map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gray-100);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--gray-950);
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px;
  padding-bottom: 60px;
  border-bottom: 1px solid var(--gray-800);
}

.footer-brand p {
  font-size: 0.875rem;
  color: var(--gray-400);
  line-height: 1.7;
  margin-top: 16px;
  max-width: 280px;
}

.footer-logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.footer-logo .logo-main {
  color: var(--white);
}

.footer-logo .logo-sub {
  color: var(--gray-500);
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  background: var(--gray-800);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-400);
  transition: var(--transition);
}

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

.footer-links h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 20px;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links li,
.footer-links a {
  font-size: 0.825rem;
  color: var(--gray-400);
  transition: var(--transition);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--gray-500);
}

.footer-legal {
  display: flex;
  gap: 24px;
}

.footer-legal a {
  font-size: 0.8rem;
  color: var(--gray-500);
}

.footer-legal a:hover {
  color: var(--white);
}

/* ============================================
   WHATSAPP FLOAT
   ============================================ */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 60px;
  height: 60px;
  background: var(--black);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  box-shadow: var(--shadow-xl);
  transition: var(--transition);
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}

/* ============================================
   SCROLL TO TOP
   ============================================ */
.scroll-top {
  position: fixed;
  bottom: 24px;
  left: 24px;
  width: 48px;
  height: 48px;
  background: var(--white);
  color: var(--black);
  border: 1.5px solid var(--gray-200);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
}

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

.scroll-top:hover {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}

/* ============================================
   ANIMATIONS
   ============================================ */
[data-animate] {
  opacity: 0;
  transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-animate="fade-up"] {
  transform: translateY(40px);
}

[data-animate="fade-right"] {
  transform: translateX(-20px);
}

[data-animate="fade-left"] {
  transform: translateX(40px);
}

[data-animate].animated {
  opacity: 1;
  transform: translate(0, 0);
}

/* ============================================
   FORM VALIDATION
   ============================================ */
.form-group input.error,
.form-group textarea.error,
.form-group select.error {
  border-color: #dc2626;
  background: #fef2f2;
}

.form-group input.error:focus,
.form-group textarea.error:focus,
.form-group select.error:focus {
  border-color: #dc2626;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.error-message {
  font-size: 0.75rem;
  color: #dc2626;
  margin-top: 6px;
  display: none;
}

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

/* Toast Notification */
.form-status {
  display: none;
  margin-top: 16px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  line-height: 1.5;
}

.form-status.show {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.form-status-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
}

.form-status-success {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: var(--gray-600);
}

.form-status-success .form-status-icon {
  background: #16a34a;
}

.form-status-error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: var(--gray-600);
}

.form-status-error .form-status-icon {
  background: #dc2626;
}

.form-status-title {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--black);
  margin-bottom: 2px;
}

.form-status-message {
  display: block;
  font-size: 0.85rem;
  color: var(--gray-500);
}

/* Button Spinner */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: var(--white);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
  margin-right: 8px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.contact-form-wrapper {
  position: relative;
}

/* Hero Call Button */
.hero-call {
  display: none;
}

/* Mobile Call Button */
.call-float {
  position: fixed;
  bottom: 92px;
  right: 24px;
  width: 52px;
  height: 52px;
  background: var(--white);
  color: var(--black);
  border: 1.5px solid var(--gray-200);
  border-radius: 50%;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 999;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.call-float:hover {
  transform: scale(1.1);
  background: var(--gray-100);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .clients-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

  .testimonial-card {
    min-width: calc(50% - 16px);
  }

  .process-timeline {
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100dvh;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 24px;
    gap: 8px;
    transform: translateX(100%);
    transition: var(--transition);
    z-index: 999;
  }

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

.navbar.menu-open {
  background: var(--white);
  box-shadow: 0 1px 20px rgba(0,0,0,0.06);
}

.navbar.menu-open .logo-main {
  color: var(--black);
}

.navbar.menu-open .logo-sub {
  color: var(--gray-500);
}

.no-scroll {
  overflow: hidden;
}

.nav-link {
    color: var(--gray-600) !important;
    font-size: 1.1rem;
    padding: 14px 24px;
    width: 100%;
    max-width: 280px;
    text-align: center;
    border-radius: var(--radius-md);
  }

  .nav-link:hover,
  .nav-link.active {
    background: var(--gray-100) !important;
    color: var(--black) !important;
  }

  .nav-cta {
    background: var(--black) !important;
    color: var(--white) !important;
    width: 100%;
    max-width: 280px;
    text-align: center;
    margin-left: 0;
    margin-top: 8px;
    padding: 14px 24px !important;
  }

  .hero-call {
    display: inline-flex;
  }

  .call-float {
    display: flex;
  }

  .hero {
    min-height: 100vh;
  }

  .hero-title {
    font-size: clamp(1.75rem, 7vw, 2.5rem);
  }

  .hero-subtitle {
    font-size: 0.9rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
    padding: 0 16px;
  }

  .hero-buttons .btn {
    width: 100%;
  }

  .hero-tag {
    font-size: 0.65rem;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .about-visual {
    aspect-ratio: 16/9;
  }

  .about-features {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .stat-card {
    padding: 24px 16px;
  }

  .stat-number {
    font-size: 2rem;
  }

  .stat-plus {
    font-size: 1.25rem;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .service-card {
    padding: 24px 20px;
  }

  .service-card h3 {
    font-size: 0.95rem;
  }

  .service-card p {
    font-size: 0.8rem;
  }

  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .portfolio-filters {
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 8px;
    margin-bottom: 32px;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .portfolio-filters::-webkit-scrollbar {
    display: none;
  }

  .filter-btn {
    flex-shrink: 0;
    padding: 10px 20px;
    font-size: 0.75rem;
  }

  .portfolio-overlay {
    padding: 16px;
  }

  .portfolio-overlay h4 {
    font-size: 0.85rem;
  }

  .portfolio-overlay p {
    font-size: 0.7rem;
  }

  .portfolio-view {
    font-size: 0.7rem;
    padding: 6px 16px;
  }

  .clients-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }

  .client-logo {
    padding: 24px 12px;
  }

  .process-timeline {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .process-timeline::before {
    display: none;
  }

  .process-step {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    text-align: left;
    padding-top: 0;
  }

  .step-number {
    font-size: 1.25rem;
    margin-bottom: 0;
    min-width: 40px;
  }

  .step-number::after {
    display: none;
  }

  .step-content h3 {
    font-size: 1rem;
  }

  .step-content p {
    font-size: 0.8rem;
  }

  .why-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .why-card {
    padding: 24px 16px;
  }

  .testimonial-card {
    min-width: calc(100% - 16px);
    padding: 24px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .contact-info-card {
    gap: 16px;
  }

  .contact-detail a + a {
    margin-top: 4px;
  }

  .lightbox-content {
    grid-template-columns: 1fr;
    gap: 16px;
    overflow-y: auto;
    max-height: 90dvh;
    padding: 16px 0;
    width: 95%;
  }

  .lightbox-image {
    aspect-ratio: 16/9;
  }

  .lightbox-info h3 {
    font-size: 1.2rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .footer-legal {
    flex-direction: column;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .section {
    padding: 48px 0;
  }

  .container {
    padding: 0 16px;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .portfolio-grid {
    gap: 8px;
  }

  .clients-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }

  .client-logo {
    padding: 20px 8px;
  }

  .stat-card {
    padding: 20px 16px;
  }

  .whatsapp-float {
    width: 48px;
    height: 48px;
    bottom: 16px;
    right: 16px;
  }

  .call-float {
    width: 48px;
    height: 48px;
    bottom: 76px;
    right: 16px;
  }

  .scroll-top {
    width: 40px;
    height: 40px;
    bottom: 16px;
    left: 16px;
  }

  .nav-menu {
    padding: 64px 16px;
  }

  .about-grid {
    gap: 24px;
  }

  .contact-grid {
    gap: 24px;
  }

  .footer-grid {
    gap: 24px;
  }

  .footer {
    padding: 48px 0 0;
  }
}

@media (max-width: 360px) {
  .hero-title {
    font-size: 1.5rem;
  }

  .hero-subtitle {
    font-size: 0.85rem;
  }

  .filter-btn {
    padding: 8px 14px;
    font-size: 0.7rem;
  }

  .service-card {
    padding: 20px 16px;
  }

  .testimonial-card {
    padding: 20px;
  }

  .stat-number {
    font-size: 1.75rem;
  }
}

/* ============================================
   SMOOTH SCROLLBAR
   ============================================ */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-400);
}

/* ============================================
   SELECTION
   ============================================ */
::selection {
  background: var(--black);
  color: var(--white);
}