/* ============================================
   Global Archviz — Styles
   ============================================ */

/* CSS Custom Properties */
:root {
  --color-primary: #c8a97e;
  --color-primary-dark: #b8945e;
  --color-primary-light: #d4bc9a;
  --color-bg: #0a0a0a;
  --color-bg-alt: #111111;
  --color-bg-card: #1a1a1a;
  --color-text: #f5f5f5;
  --color-text-muted: #999999;
  --color-text-dark: #666666;
  --color-border: #2a2a2a;
  --color-overlay: rgba(0, 0, 0, 0.6);
  --font-primary: 'Inter', sans-serif;
  --font-display: 'Playfair Display', serif;
  --transition: 0.3s ease;
  --shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  --radius: 12px;
  --max-width: 1200px;
  --header-height: 80px;
}

/* Light Theme */
.light-theme {
  --color-bg: #ffffff;
  --color-bg-alt: #f8f8f8;
  --color-bg-card: #f0f0f0;
  --color-text: #1a1a1a;
  --color-text-muted: #666666;
  --color-text-dark: #999999;
  --color-border: #e0e0e0;
  --color-overlay: rgba(255, 255, 255, 0.8);
  --shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
}

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

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

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

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

ul {
  list-style: none;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 100px 0;
}

.section__header {
  text-align: center;
  margin-bottom: 60px;
}

.section__tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.section__title {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
}

.section__desc {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-family: var(--font-primary);
  font-size: 0.95rem;
  font-weight: 600;
  border: 2px solid transparent;
  border-radius: 50px;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn--primary {
  background: var(--color-primary);
  color: #0a0a0a;
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(200, 169, 126, 0.3);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

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

.btn--lg {
  padding: 16px 40px;
  font-size: 1.05rem;
}

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

.header.scrolled {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo__img {
  width: 60px;
  height: 60px;
  object-fit: contain;
  border-radius: 4px;
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav__list {
  display: flex;
  gap: 30px;
}

.nav__list a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
  position: relative;
}

.nav__list a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition);
}

.nav__list a:hover {
  color: var(--color-text);
}

.nav__list a:hover::after {
  width: 100%;
}

.nav__lang {
  display: flex;
  gap: 4px;
}

.lang-btn {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition);
}

.lang-btn.active {
  background: var(--color-primary);
  color: #0a0a0a;
  border-color: var(--color-primary);
}

.lang-btn:hover:not(.active) {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
  font-size: 1rem;
}

.theme-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 5px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all var(--transition);
  border-radius: 2px;
}

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

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

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

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

.hero > .container {
  width: 100%;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.3) 100%);
  z-index: 1;
}

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

.hero__bg-item {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.5s ease;
}

.hero__bg-item.active {
  opacity: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  text-align: center;
  margin: 0 auto;
}

.hero__tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 24px;
  padding: 8px 20px;
  border: 1px solid var(--color-primary);
  border-radius: 50px;
}

.hero__title {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 24px;
}

.hero__highlight {
  color: var(--color-primary);
}

.hero__desc {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin-bottom: 40px;
  line-height: 1.7;
}

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

.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  animation: bounce 2s infinite;
}

.hero__scroll i {
  font-size: 0.8rem;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-10px); }
  60% { transform: translateX(-50%) translateY(-5px); }
}

/* ============================================
   STATS
   ============================================ */
.stats {
  padding: 80px 0;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  text-align: center;
}

.stat-item__number {
  display: block;
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.stat-item__label {
  font-size: 1rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ============================================
   PORTFOLIO
   ============================================ */
.portfolio__filter {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-btn {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  padding: 10px 24px;
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: 50px;
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn.active {
  background: var(--color-primary);
  color: #0a0a0a;
  border-color: var(--color-primary);
}

.filter-btn:hover:not(.active) {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.portfolio-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
}

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

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

.portfolio-item__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.portfolio-item:hover .portfolio-item__overlay {
  opacity: 1;
}

.portfolio-item__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.portfolio-item__cat {
  font-size: 0.8rem;
  color: var(--color-primary);
  font-weight: 500;
}

/* ============================================
   VIDEO SHOWCASE
   ============================================ */
.video-showcase {
  background: var(--color-bg-alt);
}

.video-showcase__wrapper {
  max-width: 900px;
  margin: 0 auto;
}

.video-showcase__player {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  background: #000;
}

.video-showcase__player iframe,
.video-showcase__player video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  object-fit: cover;
}

/* ============================================
   SERVICES
   ============================================ */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px 30px;
  transition: all var(--transition);
}

.service-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.service-card__icon {
  width: 56px;
  height: 56px;
  background: rgba(200, 169, 126, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 1.4rem;
  color: var(--color-primary);
}

.service-card__title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.service-card__desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ============================================
   PROCESS
   ============================================ */
.process {
  background: var(--color-bg-alt);
}

.process__timeline {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
}

.process__timeline::before {
  content: '';
  position: absolute;
  left: 24px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.process-step {
  display: flex;
  gap: 32px;
  margin-bottom: 48px;
  position: relative;
}

.process-step:last-child {
  margin-bottom: 0;
}

.process-step__number {
  width: 50px;
  height: 50px;
  min-width: 50px;
  background: var(--color-bg);
  border: 2px solid var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  position: relative;
  z-index: 1;
}

.process-step__content h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.process-step__content p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonials__slider {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-bottom: 20px;
}

.testimonials__slider::-webkit-scrollbar {
  display: none;
}

.testimonial-card {
  min-width: 100%;
  scroll-snap-align: start;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px;
}

.testimonial-card__stars {
  color: #f1c40f;
  margin-bottom: 20px;
  font-size: 1rem;
}

.testimonial-card__text {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 24px;
  font-style: italic;
  color: var(--color-text);
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: 16px;
}

.testimonial-card__author img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial-card__author strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 2px;
}

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

.testimonials__controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
}

.slider-btn {
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
  font-size: 0.9rem;
}

.slider-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

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

.slider-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-border);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  padding: 0;
}

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

/* ============================================
   CTA
   ============================================ */
.cta {
  background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
  text-align: center;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.cta__content {
  max-width: 600px;
  margin: 0 auto;
}

.cta__title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.cta__desc {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin-bottom: 36px;
  line-height: 1.7;
}

/* ============================================
   CONTACT
   ============================================ */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

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

.form-group {
  position: relative;
}

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

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 16px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text);
  font-family: var(--font-primary);
  font-size: 0.95rem;
  transition: all var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(200, 169, 126, 0.1);
}

.form-group label {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  font-size: 0.95rem;
  pointer-events: none;
  transition: all var(--transition);
  background: var(--color-bg-card);
  padding: 0 4px;
}

.form-group textarea ~ label {
  top: 16px;
  transform: none;
}

.form-group input:focus ~ label,
.form-group textarea:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
  top: -10px;
  font-size: 0.75rem;
  color: var(--color-primary);
}

.form-group select {
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23999' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
}

.contact__form .btn {
  grid-column: 1 / -1;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

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

.contact-info-item i {
  width: 44px;
  height: 44px;
  min-width: 44px;
  background: rgba(200, 169, 126, 0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1.1rem;
}

.contact-info-item strong {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-weight: 500;
  margin-bottom: 4px;
}

.contact-info-item a,
.contact-info-item span {
  font-size: 1rem;
  color: var(--color-text);
  transition: color var(--transition);
}

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

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: 80px 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 60px;
}

.footer__brand h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.footer__brand p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 360px;
}

.footer__social {
  display: flex;
  gap: 12px;
}

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

.footer__social a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.footer__links h4,
.footer__services h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--color-text);
}

.footer__links ul,
.footer__services ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__links a,
.footer__services a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.footer__links a:hover,
.footer__services a:hover {
  color: var(--color-primary);
}

.footer__bottom {
  border-top: 1px solid var(--color-border);
  padding: 24px 0;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ============================================
   LIGHTBOX
   ============================================ */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  z-index: 9999;
  justify-content: center;
  align-items: center;
  padding: 40px;
}

.lightbox.active {
  display: flex;
}

.lightbox__close {
  position: absolute;
  top: 20px;
  right: 30px;
  background: none;
  border: none;
  color: #fff;
  font-size: 2.5rem;
  cursor: pointer;
  line-height: 1;
  z-index: 1;
}

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

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .hero__title {
    font-size: 3rem;
  }

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

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

  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }

  .section__title {
    font-size: 2rem;
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 30px 20px;
    gap: 24px;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition);
  }

  .nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav__list {
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }

  .hamburger {
    display: flex;
  }

  .hero__title {
    font-size: 2.2rem;
  }

  .hero__desc {
    font-size: 1rem;
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .stats__grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .stat-item__number {
    font-size: 2.5rem;
  }

  .portfolio__grid {
    grid-template-columns: 1fr;
  }

  .services__grid {
    grid-template-columns: 1fr;
  }

  .contact__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact__form {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .cta__title {
    font-size: 1.8rem;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: 1.8rem;
  }

  .section__title {
    font-size: 1.6rem;
  }
}