/* ==========================================================================
   INVESDOCK - Luxury PropTech & Capital Advisory Design System
   ========================================================================== */

:root {
  --bg-primary: #070B19;
  --bg-secondary: #0D152D;
  --bg-card: rgba(16, 26, 54, 0.75);
  --bg-card-hover: rgba(23, 38, 77, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.03);
  
  --border-light: rgba(255, 255, 255, 0.08);
  --border-gold: rgba(245, 158, 11, 0.3);
  --border-cyan: rgba(14, 165, 233, 0.3);
  
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  
  --accent-gold: #F59E0B;
  --accent-gold-light: #FCD34D;
  --accent-gold-dark: #D97706;
  --accent-cyan: #00F0FF;
  --accent-blue: #0EA5E9;
  --accent-emerald: #10B981;
  
  --grad-gold: linear-gradient(135deg, #FFD700 0%, #F59E0B 50%, #D97706 100%);
  --grad-cyan: linear-gradient(135deg, #00F0FF 0%, #0EA5E9 100%);
  --grad-dark: linear-gradient(180deg, rgba(13, 21, 45, 0.8) 0%, rgba(7, 11, 25, 0.95) 100%);
  --grad-hero: radial-gradient(circle at 50% 20%, rgba(14, 165, 233, 0.15) 0%, rgba(7, 11, 25, 0) 70%),
               radial-gradient(circle at 80% 50%, rgba(245, 158, 11, 0.08) 0%, rgba(7, 11, 25, 0) 60%);
               
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 25px rgba(245, 158, 11, 0.2);
  --shadow-cyan: 0 0 25px rgba(0, 240, 255, 0.2);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  font-family: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: var(--grad-hero);
  background-attachment: fixed;
}

/* Typography & Utilities */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

p {
  color: var(--text-secondary);
}

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

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.text-gold {
  background: var(--grad-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-cyan {
  background: var(--grad-cyan);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  backdrop-filter: blur(12px);
}

.badge-gold {
  background: rgba(245, 158, 11, 0.12);
  color: var(--accent-gold-light);
  border: 1px solid var(--border-gold);
}

.badge-cyan {
  background: rgba(14, 165, 233, 0.12);
  color: var(--accent-cyan);
  border: 1px solid var(--border-cyan);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  border: none;
  outline: none;
  transition: var(--transition);
}

.btn-primary {
  background: var(--grad-gold);
  color: #070B19;
  box-shadow: 0 4px 20px rgba(245, 158, 11, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(245, 158, 11, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: #25D366;
  color: #FFFFFF;
  box-shadow: 0 4px 18px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  background: #20BD5A;
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(37, 211, 102, 0.45);
}

.btn-sm {
  padding: 0.55rem 1.15rem;
  font-size: 0.85rem;
}

/* Glass Cards */
.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.glass-card:hover {
  border-color: var(--border-gold);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

/* ==========================================================================
   Navigation Bar
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.1rem 0;
  transition: var(--transition);
  background: rgba(7, 11, 25, 0.7);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
}

.navbar.scrolled {
  padding: 0.85rem 0;
  background: rgba(7, 11, 25, 0.95);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #FFFFFF;
}

.brand-logo svg {
  width: 38px;
  height: 38px;
}

.brand-logo span {
  background: var(--grad-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  padding: 9rem 0 5rem 0;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin: 1.2rem 0;
  line-height: 1.15;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 580px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-light);
}

.stat-item h3 {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--accent-gold);
}

.stat-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.2rem;
}

/* Hero Lead Card */
.lead-card {
  background: rgba(13, 21, 45, 0.85);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(25px);
  position: relative;
}

.lead-card::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 20%;
  right: 20%;
  height: 2px;
  background: var(--grad-gold);
  box-shadow: 0 0 15px rgba(245, 158, 11, 0.8);
}

.lead-card-header {
  margin-bottom: 1.5rem;
  text-align: center;
}

.lead-card-header h3 {
  font-size: 1.4rem;
  margin-bottom: 0.35rem;
}

.lead-card-header p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.lead-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-input, .form-select {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  background: rgba(7, 11, 25, 0.8);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  font-size: 0.9375rem;
  font-family: inherit;
  transition: var(--transition);
}

.form-input:focus, .form-select:focus {
  outline: none;
  border-color: var(--accent-gold);
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.25);
}

.form-disclaimer {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 0.5rem;
}

/* ==========================================================================
   Marquee Developer Network
   ========================================================================== */
.marquee-section {
  padding: 3rem 0;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  background: rgba(13, 21, 45, 0.4);
}

.marquee-header {
  text-align: center;
  margin-bottom: 1.8rem;
}

.marquee-header p {
  font-size: 0.8125rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
}

.marquee-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 3rem;
  opacity: 0.75;
}

.dev-badge {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: #CBD5E1;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
  transition: var(--transition);
}

.dev-badge:hover {
  color: #FFFFFF;
  border-color: var(--border-gold);
  transform: translateY(-2px);
  opacity: 1;
}

/* ==========================================================================
   Section Headers
   ========================================================================== */
.section {
  padding: 6rem 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem auto;
}

.section-header h2 {
  font-size: 2.5rem;
  margin: 0.8rem 0;
}

.section-header p {
  font-size: 1.05rem;
}

/* ==========================================================================
   Featured Primary Launches
   ========================================================================== */
.filter-tabs {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 0.6rem 1.4rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn.active, .tab-btn:hover {
  background: rgba(245, 158, 11, 0.15);
  border-color: var(--border-gold);
  color: var(--accent-gold-light);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-gold);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
}

.project-thumb {
  height: 220px;
  background-size: cover;
  background-position: center;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1rem;
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 11, 25, 0.2) 0%, rgba(7, 11, 25, 0.85) 100%);
}

.thumb-tag {
  position: relative;
  z-index: 2;
  align-self: flex-start;
}

.thumb-price {
  position: relative;
  z-index: 2;
  font-size: 1.35rem;
  font-weight: 800;
  color: #FFFFFF;
}

.project-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.project-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--accent-cyan);
  margin-bottom: 0.4rem;
}

.project-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.project-specs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin: 1rem 0;
  padding: 0.85rem 0;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.spec-item {
  display: flex;
  flex-direction: column;
}

.spec-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.spec-value {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary);
}

.project-rera {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.project-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: auto;
}

/* ==========================================================================
   Value Proposition / Why InvesDock
   ========================================================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-card {
  padding: 2.25rem 2rem;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-cyan);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(14, 165, 233, 0.1);
  border: 1px solid var(--border-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--accent-cyan);
}

.feature-icon.gold {
  background: rgba(245, 158, 11, 0.1);
  border-color: var(--border-gold);
  color: var(--accent-gold);
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

/* ==========================================================================
   Interactive Calculator Section
   ========================================================================== */
.calc-container {
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-xl);
  padding: 3rem;
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.calc-sliders {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.slider-group {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.slider-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.slider-val {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--accent-gold);
}

.slider-range {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.1);
  outline: none;
}

.slider-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent-gold);
  cursor: pointer;
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.6);
  border: 2px solid #FFFFFF;
}

.calc-results {
  background: rgba(7, 11, 25, 0.8);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.result-block h4 {
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.result-block .result-num {
  font-size: 2.25rem;
  font-weight: 800;
  color: #FFFFFF;
}

.results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-light);
}

/* ==========================================================================
   Advisory 3-Step Journey
   ========================================================================== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  position: relative;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  position: relative;
}

.step-num {
  font-size: 3rem;
  font-weight: 900;
  line-height: 1;
  color: rgba(245, 158, 11, 0.2);
  margin-bottom: 1rem;
}

.step-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
}

/* ==========================================================================
   Modal Dialog
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  max-width: 500px;
  width: 100%;
  position: relative;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8);
  transform: scale(0.95);
  transition: var(--transition);
}

.modal-overlay.active .modal-content {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

.modal-close:hover {
  color: #FFFFFF;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background: #040710;
  border-top: 1px solid var(--border-light);
  padding: 5rem 0 2.5rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand p {
  margin: 1.2rem 0;
  font-size: 0.9375rem;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: #FFFFFF;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.footer-links a:hover {
  color: var(--accent-gold);
  transform: translateX(3px);
}

.footer-rera-box {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-top: 1rem;
}

.footer-rera-box p {
  font-size: 0.8125rem;
  color: var(--accent-gold-light);
  font-weight: 600;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .hero-content h1 {
    font-size: 2.85rem;
  }
  .projects-grid, .features-grid, .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .calc-container {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links, .nav-actions .btn-secondary {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .hero-content h1 {
    font-size: 2.25rem;
  }
  .projects-grid, .features-grid, .steps-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}