/* ============================================
   ADARA RESIDENCIAL SECTOR AMIRA
   Design System & Styles
   ============================================ */

/* --- Reset & Base --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@300;400;500;600;700;800&display=swap');

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

:root {
  /* Colors */
  --color-black: #0a0a0a;
  --color-black-light: #1a1a1a;
  --color-black-medium: #141414;
  --color-white: #ffffff;
  --color-white-soft: #f5f5f5;
  --color-gray-100: #e8e8e8;
  --color-gray-200: #d0d0d0;
  --color-gray-300: #b0b0b0;
  --color-gray-400: #888888;
  --color-gray-500: #666666;
  --color-accent: #c9a96e;
  --color-accent-light: #dfc99a;

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  /* Borders & Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  /* Shadows */
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-card-hover: 0 16px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(201, 169, 110, 0.15);
}

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

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

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

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

/* ============================================
   NAVBAR
   ============================================ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 0 var(--space-lg);
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: var(--transition-smooth);
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.95);
  height: 68px;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  z-index: 1001;
}

.navbar__logo img {
  height: 48px;
  width: auto;
  transition: var(--transition-smooth);
}

.navbar.scrolled .navbar__logo img {
  height: 40px;
}

.navbar__logo-text {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--color-white);
}

.navbar__logo-text span {
  display: block;
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-gray-300);
  margin-top: 2px;
}

.navbar__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
}

.navbar__links a {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  color: var(--color-gray-200);
  position: relative;
  padding: 0.5rem 0;
  transition: var(--transition-fast);
}

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

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

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

/* Hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  cursor: pointer;
  z-index: 1001;
  background: none;
  border: none;
  padding: 0;
  gap: 6px;
}

.navbar__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: var(--transition-smooth);
  transform-origin: center;
}

.navbar__hamburger.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.navbar__hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.navbar__hamburger.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile Menu Overlay */
.navbar__mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  background: rgba(10, 10, 10, 0.97);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: var(--space-lg);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
}

.navbar__mobile-menu.open {
  opacity: 1;
  visibility: visible;
}

.navbar__mobile-menu a {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--color-gray-200);
  letter-spacing: 1px;
  transition: var(--transition-fast);
  transform: translateY(20px);
  opacity: 0;
}

.navbar__mobile-menu.open a {
  transform: translateY(0);
  opacity: 1;
}

.navbar__mobile-menu.open a:nth-child(1) { transition-delay: 0.1s; }
.navbar__mobile-menu.open a:nth-child(2) { transition-delay: 0.15s; }
.navbar__mobile-menu.open a:nth-child(3) { transition-delay: 0.2s; }
.navbar__mobile-menu.open a:nth-child(4) { transition-delay: 0.25s; }

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

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  position: relative;
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

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

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.35);
  transform: scale(1.05);
  animation: heroZoom 20s ease-in-out infinite alternate;
}

@keyframes heroZoom {
  0% { transform: scale(1.05); }
  100% { transform: scale(1.12); }
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(10, 10, 10, 0.6) 0%,
    rgba(10, 10, 10, 0.3) 40%,
    rgba(10, 10, 10, 0.5) 70%,
    rgba(10, 10, 10, 0.95) 100%
  );
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-lg);
  max-width: 800px;
  animation: fadeInUp 1s ease-out 0.3s both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero__logo {
  width: 140px;
  height: auto;
  margin: 0 auto var(--space-lg);
  filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.5));
  animation: fadeInUp 1s ease-out 0.5s both;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1.1;
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--color-white) 0%, var(--color-gray-200) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-family: var(--font-body);
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 300;
  color: var(--color-gray-300);
  letter-spacing: 0.5px;
  line-height: 1.7;
  max-width: 600px;
  margin: 0 auto var(--space-lg);
}

.hero__divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  margin: 0 auto var(--space-lg);
  border-radius: 2px;
  animation: fadeInUp 1s ease-out 0.7s both;
}

/* Hero Cards */
.hero__cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  width: 100%;
  max-width: 680px;
  margin-top: var(--space-lg);
  animation: fadeInUp 1s ease-out 0.9s both;
}

.hero-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-md);
  background: rgba(255, 255, 255, 0.20);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: var(--transition-smooth);
  cursor: pointer;
  text-align: left;
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  transform: scaleX(0);
  transition: var(--transition-smooth);
}

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

.hero-card:hover {
  background: rgba(255, 255, 255, 0.28);
  border-color: rgba(201, 169, 110, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), var(--shadow-glow);
}

.hero-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(201, 169, 110, 0.2), rgba(201, 169, 110, 0.05));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition-smooth);
}

.hero-card:hover .hero-card__icon {
  background: linear-gradient(135deg, rgba(201, 169, 110, 0.3), rgba(201, 169, 110, 0.1));
  transform: scale(1.1);
}

.hero-card__icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-accent);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.hero-card__text {
  flex: 1;
  min-width: 0;
}

.hero-card__title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 4px;
}

.hero-card__description {
  font-size: 0.78rem;
  font-weight: 300;
  color: var(--color-gray-300);
  line-height: 1.5;
}

.hero-card__arrow {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateX(-8px);
  transition: var(--transition-smooth);
}

.hero-card:hover .hero-card__arrow {
  opacity: 1;
  transform: translateX(0);
}

.hero-card__arrow svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-accent);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ============================================
   SHARED SECTION STYLES
   ============================================ */

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

.section__tag {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
  padding: 0.4rem 1.2rem;
  border: 1px solid rgba(201, 169, 110, 0.3);
  border-radius: 100px;
}

.section__title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.3px;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: var(--color-white);
}

.section__description {
  font-size: 1.05rem;
  font-weight: 300;
  color: var(--color-gray-300);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about {
  padding: var(--space-2xl) var(--space-lg);
  position: relative;
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  max-width: 1100px;
  margin: 0 auto;
  align-items: center;
}

.about__image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

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

.about__image-wrapper:hover img {
  transform: scale(1.05);
}

.about__image-wrapper::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  pointer-events: none;
}

.about__text {
  padding: var(--space-lg) 0;
}

.about__text h3 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--color-white);
}

.about__text p {
  font-size: 1rem;
  font-weight: 300;
  color: var(--color-gray-300);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

/* Features list */
.about__features {
  list-style: none;
  display: grid;
  gap: var(--space-sm);
}

.about__features li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--color-gray-200);
}

.about__features li::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ============================================
   GALLERY SECTION
   ============================================ */

.gallery {
  padding: var(--space-2xl) var(--space-lg);
  background: var(--color-black-medium);
}

.gallery__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  max-width: 1100px;
  margin: 0 auto;
}

.gallery__item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16 / 10;
  cursor: pointer;
}

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

.gallery__item:hover img {
  transform: scale(1.08);
}

.gallery__item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    transparent 40%,
    rgba(10, 10, 10, 0.8) 100%
  );
  display: flex;
  align-items: flex-end;
  padding: var(--space-md);
  opacity: 0;
  transition: var(--transition-smooth);
}

.gallery__item:hover .gallery__item-overlay {
  opacity: 1;
}

.gallery__item-overlay span {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-white);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
  padding: var(--space-xl) var(--space-lg) var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: var(--color-black-medium);
}

.footer__content {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  text-align: center;
}

.footer__logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.footer__logo img {
  height: 56px;
  width: auto;
}

.footer__logo-name {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-white);
}

.footer__logo-name span {
  display: block;
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-gray-400);
  margin-top: 4px;
}

.footer__links {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
  flex-wrap: wrap;
  justify-content: center;
}

.footer__links a {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-gray-300);
  transition: var(--transition-fast);
}

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

.footer__divider {
  width: 100%;
  max-width: 200px;
  height: 1px;
  background: rgba(255, 255, 255, 0.08);
}

.footer__copy {
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--color-gray-500);
}

/* ============================================
   ANIMATIONS & UTILITIES
   ============================================ */

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.stagger-children .fade-in:nth-child(1) { transition-delay: 0.1s; }
.stagger-children .fade-in:nth-child(2) { transition-delay: 0.2s; }
.stagger-children .fade-in:nth-child(3) { transition-delay: 0.3s; }
.stagger-children .fade-in:nth-child(4) { transition-delay: 0.4s; }

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
  .about__grid {
    gap: var(--space-md);
  }
}

@media (max-width: 768px) {
  .navbar {
    padding: 0 var(--space-md);
  }

  .navbar__links {
    display: none;
  }

  .navbar__hamburger {
    display: flex;
  }

  .navbar__mobile-menu {
    display: flex;
  }

  .hero__logo {
    width: 100px;
  }

  .hero__cards {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }

  .hero-card__arrow {
    opacity: 1;
    transform: translateX(0);
  }

  .about {
    padding: var(--space-xl) var(--space-md);
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .about__text {
    padding: 0;
  }

  .gallery {
    padding: var(--space-xl) var(--space-md);
  }

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

  .footer {
    padding: var(--space-lg) var(--space-md);
  }

  .footer__links {
    flex-direction: column;
    gap: var(--space-sm);
  }
}

@media (max-width: 480px) {
  .navbar {
    padding: 0 var(--space-sm);
    height: 68px;
  }

  .navbar__logo img {
    height: 36px;
  }

  .navbar__logo-text {
    font-size: 0.95rem;
  }

  .navbar__logo-text span {
    font-size: 0.55rem;
  }

  .hero__content {
    padding: var(--space-md);
  }

  .hero__logo {
    width: 80px;
    margin-bottom: var(--space-md);
  }

  .hero-card {
    padding: var(--space-sm) var(--space-sm);
    gap: var(--space-sm);
  }

  .hero-card__icon {
    width: 40px;
    height: 40px;
  }

  .hero-card__icon svg {
    width: 18px;
    height: 18px;
  }

  .hero-card__title {
    font-size: 0.95rem;
  }

  .hero-card__description {
    font-size: 0.7rem;
  }

  .section__tag {
    font-size: 0.6rem;
  }
}