:root {
  --primary-dark: #0a0e27;
  --secondary-dark: #1a1f3a;
  --accent-blue: #00d4ff;
  --text-light: #ffffff;
  --text-gray: #a0aec0;
  --gradient-blue: linear-gradient(135deg, #00d4ff 0%, #0099ff 100%);
  --border-color: rgba(0, 212, 255, 0.2);
  --shadow-lg: 0 20px 45px rgba(0, 0, 0, 0.28);
}

html {
  scroll-behavior: smooth;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--primary-dark);
  color: var(--text-light);
  overflow-x: hidden;
  line-height: 1.6;
}

a {
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

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

.container {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(10, 14, 39, 0.95);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  z-index: 1000;
  transition: background 0.25s ease, box-shadow 0.25s ease;
}

.nav-container {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-light);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.logo-icon {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--gradient-blue);
  color: var(--primary-dark);
  box-shadow: 0 10px 30px rgba(0, 212, 255, 0.35);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  position: relative;
  color: var(--text-gray);
  font-weight: 500;
  transition: color 0.25s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent-blue);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -9px;
  width: 100%;
  height: 2px;
  background: var(--accent-blue);
  border-radius: 99px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

#languageSelect {
  background: var(--secondary-dark);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-light);
  padding: 8px 10px;
}

.btn,
.btn-book,
.btn-primary,
.btn-secondary,
.btn-details,
.btn-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 700;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease, background 0.25s ease;
  text-decoration: none;
}

.btn-book,
.btn-primary {
  background: var(--gradient-blue);
  color: var(--primary-dark);
  padding: 12px 22px;
  box-shadow: 0 10px 30px rgba(0, 212, 255, 0.24);
}

.btn-secondary {
  background: transparent;
  color: var(--text-light);
  border: 2px solid rgba(255, 255, 255, 0.2);
  padding: 12px 22px;
}

.btn:hover,
.btn-book:hover,
.btn-primary:hover,
.btn-secondary:hover,
.btn-details:hover,
.btn-submit:hover {
  transform: translateY(-2px);
}

.btn-secondary:hover {
  border-color: rgba(0, 212, 255, 0.9);
  background: rgba(0, 212, 255, 0.08);
}

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-light);
  font-size: 1.5rem;
  cursor: pointer;
}

.hero {
  position: relative;
  min-height: 90vh;
  margin-top: 76px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(10, 14, 39, 0.9), rgba(26, 31, 58, 0.8)),
    url('https://images.unsplash.com/photo-1545324418-cc1a3fa10c00?w=1920') center/cover no-repeat;
  text-align: center;
  padding: 120px 20px 80px;
}

.hero-content {
  max-width: 900px;
}

.hero-content h1 {
  margin-bottom: 20px;
  font-size: clamp(2.7rem, 5vw, 4.5rem);
  line-height: 1.1;
  font-weight: 800;
  background: linear-gradient(135deg, #ffffff 0%, var(--accent-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-content p {
  color: var(--text-gray);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  margin-bottom: 34px;
}

.hero-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
}

section {
  padding: 100px 0;
}

.featured-section,
.contact-section {
  background: var(--primary-dark);
}

.residences-section,
.testimonials-section,
footer {
  background: var(--secondary-dark);
}

.section-header {
  text-align: center;
  margin-bottom: 54px;
}

.section-tag {
  display: inline-block;
  color: var(--accent-blue);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2rem, 3vw, 3rem);
  margin-bottom: 18px;
}

.section-subtitle {
  max-width: 680px;
  margin: 0 auto;
  color: var(--text-gray);
}

.stats-section {
  background: var(--secondary-dark);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 60px 0;
}

.stats-grid,
.support-grid,
.testimonials-grid,
.footer-content {
  display: grid;
  gap: 30px;
}

.stats-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stat-item {
  text-align: center;
  padding: 20px 16px;
}

.stat-number {
  display: block;
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 800;
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat-label {
  display: block;
  margin-top: 10px;
  color: var(--text-gray);
}

.featured-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.featured-image {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.featured-image img {
  width: 100%;
  height: auto;
  display: block;
}

.image-gallery {
  position: absolute;
  left: -22px;
  bottom: -24px;
  display: flex;
  gap: 14px;
}

.image-gallery img {
  width: 120px;
  height: 82px;
  object-fit: cover;
  border: 3px solid var(--primary-dark);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
}

.featured-content h2 {
  font-size: clamp(2rem, 3vw, 2.8rem);
  margin-bottom: 18px;
}

.featured-content p {
  color: var(--text-gray);
  margin-bottom: 30px;
  line-height: 1.8;
}

.filter-tabs {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 34px;
}

.filter-tab {
  background: rgba(0, 212, 255, 0.08);
  color: var(--text-light);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  padding: 10px 20px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.25s ease;
}

.filter-tab.active,
.filter-tab:hover {
  background: var(--gradient-blue);
  color: var(--primary-dark);
  border-color: transparent;
}

.apartments-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 30px;
}

.apartment-card {
  background: rgba(10, 14, 39, 0.5);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.apartment-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 212, 255, 0.9);
  box-shadow: 0 18px 40px rgba(0, 212, 255, 0.08);
}

.apartment-image {
  position: relative;
  height: 252px;
  overflow: hidden;
}

.apartment-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.apartment-badge {
  position: absolute;
  top: 18px;
  left: 18px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--gradient-blue);
  color: var(--primary-dark);
  font-size: 0.7rem;
  font-weight: 700;
}

.apartment-info {
  padding: 24px 22px 28px;
}

.apartment-info h3 {
  margin-bottom: 10px;
  font-size: 1.5rem;
}

.apartment-price {
  color: var(--accent-blue);
  font-weight: 700;
  margin-bottom: 18px;
}

.apartment-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin-bottom: 20px;
  color: var(--text-gray);
  font-size: 0.82rem;
}

.apartment-specs span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.btn-details {
  width: 100%;
  padding: 12px 16px;
  background: rgba(0, 212, 255, 0.08);
  color: var(--accent-blue);
  border: 1px solid rgba(0, 212, 255, 0.8);
  border-radius: 10px;
}

.btn-details:hover {
  background: var(--gradient-blue);
  color: var(--primary-dark);
}

.support-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.support-card {
  background: var(--secondary-dark);
  border: 1px solid var(--border-color);
  border-radius: 18px;
  padding: 32px 22px;
  text-align: center;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.support-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 212, 255, 0.9);
}

.support-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--gradient-blue);
  display: grid;
  place-items: center;
  color: var(--primary-dark);
  font-size: 1.8rem;
}

.support-card h3 {
  margin-bottom: 12px;
  font-size: 1.2rem;
}

.support-card p {
  color: var(--text-gray);
  line-height: 1.7;
}

.testimonials-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.testimonial-card {
  padding: 34px 28px;
  background: rgba(10, 14, 39, 0.5);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.testimonial-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 212, 255, 0.9);
}

.stars {
  font-size: 1.1rem;
  letter-spacing: 0.18em;
  color: #ffd700;
  margin-bottom: 22px;
}

.testimonial-text {
  color: var(--text-gray);
  line-height: 1.8;
  margin-bottom: 26px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.author-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
}

.author-info h4 {
  margin-bottom: 4px;
}

.author-info p {
  font-size: 0.82rem;
  color: var(--text-gray);
}

.contact-content {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: start;
}

.contact-form-container h3,
.contact-info-container h3 {
  margin-bottom: 24px;
  font-size: clamp(1.7rem, 2vw, 2.2rem);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-group {
  position: relative;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--secondary-dark);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  color: var(--text-light);
  padding: 16px 14px;
  outline: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: rgba(0, 212, 255, 0.9);
  box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.15);
}

.form-group label {
  position: absolute;
  left: 14px;
  top: 16px;
  color: var(--text-gray);
  pointer-events: none;
  transition: all 0.2s ease;
}

.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: -10px;
  left: 10px;
  font-size: 0.72rem;
  padding: 0 6px;
  background: var(--primary-dark);
  color: var(--accent-blue);
}

.btn-submit {
  width: fit-content;
  padding: 14px 28px;
  border-radius: 12px;
  background: var(--gradient-blue);
  color: var(--primary-dark);
  box-shadow: 0 12px 30px rgba(0, 212, 255, 0.24);
}

.contact-info {
  background: var(--secondary-dark);
  border: 1px solid var(--border-color);
  border-radius: 18px;
  padding: 28px;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 22px;
}

.info-item:last-child {
  margin-bottom: 0;
}

.info-item i {
  color: var(--accent-blue);
  font-size: 1.2rem;
  margin-top: 4px;
}

.info-item strong {
  display: block;
  margin-bottom: 4px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-light);
}

.info-item p {
  color: var(--text-gray);
  line-height: 1.7;
}

.social-links-contact,
.social-links {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.social-links-contact a,
.social-links a {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  border-radius: 50%;
  background: rgba(0, 212, 255, 0.08);
  color: var(--accent-blue);
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease;
}

.social-links-contact a:hover,
.social-links a:hover {
  background: var(--gradient-blue);
  color: var(--primary-dark);
  transform: translateY(-2px);
}

.map-container {
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid var(--border-color);
}

.footer-content {
  grid-template-columns: 2fr 1fr 1fr 1fr;
  padding: 40px 0 24px;
}

.footer-brand p {
  color: var(--text-gray);
  margin: 18px 0 20px;
  line-height: 1.8;
}

.footer-column h4 {
  margin-bottom: 18px;
  font-size: 1.2rem;
}

.footer-column ul {
  list-style: none;
}

.footer-column li {
  margin-bottom: 12px;
  color: var(--text-gray);
}

.footer-column a {
  color: var(--text-gray);
}

.footer-column a:hover {
  color: var(--accent-blue);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding: 22px 0 12px;
  text-align: center;
  color: var(--text-gray);
}

.chatbot-btn {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--gradient-blue);
  color: var(--primary-dark);
  box-shadow: 0 16px 40px rgba(0, 212, 255, 0.35);
  z-index: 1100;
  cursor: pointer;
}

.chatbot-window {
  position: fixed;
  right: 24px;
  bottom: 96px;
  width: min(380px, calc(100vw - 30px));
  height: 500px;
  background: var(--secondary-dark);
  border: 2px solid rgba(0, 212, 255, 0.8);
  border-radius: 18px;
  display: none;
  flex-direction: column;
  overflow: hidden;
  z-index: 1101;
}

.chatbot-window.active {
  display: flex;
}

.chatbot-header {
  background: var(--gradient-blue);
  color: var(--primary-dark);
  padding: 16px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chatbot-header h3 {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.chatbot-close {
  background: transparent;
  border: none;
  color: var(--primary-dark);
  font-size: 1.2rem;
  cursor: pointer;
}

.chatbot-messages {
  flex: 1;
  background: var(--primary-dark);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
}

.message {
  max-width: 82%;
  padding: 12px 14px;
  border-radius: 18px;
  font-size: 0.92rem;
  line-height: 1.5;
}

.message.bot {
  background: var(--secondary-dark);
  align-self: flex-start;
  border-bottom-left-radius: 6px;
}

.message.user {
  background: var(--gradient-blue);
  color: var(--primary-dark);
  align-self: flex-end;
  border-bottom-right-radius: 6px;
}

.chatbot-input {
  background: var(--secondary-dark);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px;
}

.chatbot-input input {
  flex: 1;
  background: var(--primary-dark);
  color: var(--text-light);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  padding: 12px 14px;
  outline: none;
}

.chatbot-input button {
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: var(--gradient-blue);
  color: var(--primary-dark);
  cursor: pointer;
}

@media (max-width: 1024px) {
  .stats-grid,
  .support-grid,
  .testimonials-grid,
  .footer-content {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .apartments-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .featured-grid,
  .contact-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-container {
    position: relative;
  }

  .mobile-menu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    flex-direction: column;
    background: rgba(10, 14, 39, 0.96);
    border-bottom: 1px solid var(--border-color);
    padding: 18px 0 24px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-12px);
    transition: all 0.25s ease;
  }

  .nav-links.active {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-right {
    gap: 10px;
  }

  .stats-grid,
  .support-grid,
  .testimonials-grid,
  .apartments-grid,
  .footer-content {
    grid-template-columns: 1fr;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .btn,
  .btn-primary,
  .btn-secondary,
  .btn-book {
    width: 100%;
  }

  .image-gallery {
    position: static;
    margin-top: 14px;
    justify-content: center;
  }
}

[dir='rtl'] {
  direction: rtl;
}

[dir='rtl'] .nav-links {
  flex-direction: row-reverse;
}

[dir='rtl'] .form-group label {
  left: auto;
  right: 14px;
}

[dir='rtl'] .form-group input:focus + label,
[dir='rtl'] .form-group input:not(:placeholder-shown) + label,
[dir='rtl'] .form-group textarea:focus + label,
[dir='rtl'] .form-group textarea:not(:placeholder-shown) + label {
  left: auto;
  right: 10px;
}