/* ==========================================================================
   LUMENVOX AI - WEB DEVELOPMENT & APP SERVICES
   Solo Engineering Studio: Freedom Obanijesu
   Subdomain: web.lumenvoxai.com
   ========================================================================== */

:root {
  /* Color System */
  --bg-dark: #06080e;
  --bg-surface: #0a0e17;
  --bg-card: rgba(14, 20, 33, 0.7);
  --bg-card-hover: rgba(20, 28, 48, 0.88);
  --bg-glass: rgba(10, 14, 23, 0.82);

  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-light: rgba(255, 255, 255, 0.12);
  --border-accent: rgba(56, 189, 248, 0.35);
  --border-indigo: rgba(99, 102, 241, 0.35);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;
  --text-highlight: #38bdf8;

  --accent-cyan: #38bdf8;
  --accent-blue: #3b82f6;
  --accent-indigo: #6366f1;
  --accent-purple: #a855f7;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;

  /* Gradients */
  --grad-primary: linear-gradient(135deg, #38bdf8 0%, #6366f1 50%, #a855f7 100%);
  --grad-accent: linear-gradient(135deg, #f59e0b 0%, #ea580c 100%);
  --grad-emerald: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
  --grad-card: linear-gradient(180deg, rgba(30, 41, 59, 0.4) 0%, rgba(15, 23, 42, 0.8) 100%);

  /* Typography */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 35px rgba(56, 189, 248, 0.18);
  --shadow-indigo: 0 0 45px rgba(99, 102, 241, 0.22);

  /* Transitions */
  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.45s cubic-bezier(0.4, 0, 0.2, 1);

  --container-max: 1240px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-body);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  overflow-x: hidden;
  line-height: 1.65;
  background-image: 
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(56, 189, 248, 0.12), transparent),
    radial-gradient(ellipse 60% 40% at 90% 40%, rgba(99, 102, 241, 0.07), transparent),
    radial-gradient(ellipse 60% 40% at 10% 80%, rgba(168, 85, 247, 0.05), transparent);
  background-attachment: fixed;
}

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

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

.container {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* Badges & Pills */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid var(--border-accent);
  color: var(--accent-cyan);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.pill-pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
  display: inline-block;
  animation: dotPulse 2s infinite;
}

@keyframes dotPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.5; }
}

/* Section Header Typography */
.section-header {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 60px;
}

.section-header h2 {
  font-family: var(--font-heading);
  font-size: clamp(2.1rem, 3.8vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.18;
  margin-bottom: 16px;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
  line-height: 1.7;
}

.text-gradient {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline;
}

.text-gradient-amber {
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline;
}

.text-gradient-emerald {
  background: var(--grad-emerald);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 26px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.btn-primary {
  background: var(--grad-primary);
  color: #ffffff;
  box-shadow: 0 4px 18px rgba(56, 189, 248, 0.28);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(56, 189, 248, 0.42);
}

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

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: var(--border-light);
  transform: translateY(-2px);
}

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

.btn-outline-cyan:hover {
  background: rgba(56, 189, 248, 0.1);
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
  border-radius: 14px;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
  border-radius: 8px;
}

/* Top Announcement Banner */
.top-banner {
  background: linear-gradient(90deg, rgba(14, 165, 233, 0.12) 0%, rgba(99, 102, 241, 0.12) 50%, rgba(168, 85, 247, 0.12) 100%);
  border-bottom: 1px solid rgba(56, 189, 248, 0.15);
  padding: 10px 0;
  font-size: 0.85rem;
  text-align: center;
  backdrop-filter: blur(8px);
  position: relative;
  z-index: 100;
}

.top-banner-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.top-banner-tag {
  background: rgba(56, 189, 248, 0.18);
  color: var(--accent-cyan);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.725rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Navigation Bar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 90;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.brand-logo-img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  object-fit: cover;
  border: 1px solid var(--border-accent);
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.25);
}

.brand-badge {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent-cyan);
  border: 1px solid rgba(56, 189, 248, 0.25);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  list-style: none;
}

.nav-links a {
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition-fast);
  white-space: nowrap;
}

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

.nav-cta-group {
  display: flex;
  align-items: center;
  gap: 14px;
}

.currency-toggle {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 3px;
  cursor: pointer;
  user-select: none;
}

.currency-btn {
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.currency-btn.active {
  background: var(--accent-cyan);
  color: #030712;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-main);
  margin: 5px 0;
  transition: var(--transition-fast);
}

/* Hero Section */
.hero {
  padding: 85px 0 75px;
  position: relative;
  text-align: center;
}

.hero-content {
  max-width: 980px;
  margin: 0 auto;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 5.2vw, 4.2rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 22px;
}

.hero-lead {
  font-size: clamp(1.1rem, 1.8vw, 1.3rem);
  color: var(--text-muted);
  max-width: 820px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-cta-box {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 44px;
}

.hero-trust-badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 1.5rem;
}

.trust-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: 9999px;
  font-size: 0.775rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.trust-item svg {
  color: var(--accent-emerald);
}

/* Meet Freedom Obanijesu (Humane Solo Engineer Section) */
.solo-architect-section {
  padding: 80px 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
}

.architect-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.3fr;
  gap: 52px;
  align-items: center;
}

.architect-portrait-box {
  position: relative;
}

.architect-photo {
  width: 100%;
  max-width: 380px;
  aspect-ratio: 1;
  border-radius: 24px;
  object-fit: cover;
  border: 2px solid var(--border-accent);
  box-shadow: var(--shadow-glow);
  margin: 0 auto;
}

.architect-floating-badge {
  position: absolute;
  bottom: -16px;
  right: 20px;
  background: rgba(10, 14, 23, 0.95);
  border: 1px solid var(--border-accent);
  border-radius: 14px;
  padding: 12px 18px;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 10px;
}

.architect-floating-badge span {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.architect-text h2 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.2vw, 2.7rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 18px;
}

.architect-text p {
  color: var(--text-muted);
  font-size: 1.025rem;
  line-height: 1.75;
  margin-bottom: 18px;
}

.architect-creds-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 24px 0 28px;
}

.cred-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 14px 16px;
}

.cred-title {
  font-size: 0.925rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 2px;
}

.cred-sub {
  font-size: 0.8rem;
  color: var(--text-subtle);
}

/* Stat Banner */
.stats-banner {
  background: var(--bg-dark);
  border-bottom: 1px solid var(--border-subtle);
  padding: 36px 0;
  margin-bottom: 75px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item h3 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.stat-item p {
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
}

/* Interactive Scope & Cost Calculator */
.calculator-section {
  padding: 75px 0;
}

.calc-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 24px;
  padding: 42px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

.calc-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--grad-primary);
}

.calc-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: start;
}

.calc-group {
  margin-bottom: 28px;
}

.calc-group-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.options-pill-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}

.calc-option-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 14px 16px;
  cursor: pointer;
  text-align: left;
  transition: all var(--transition-fast);
}

.calc-option-btn:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: var(--border-light);
}

.calc-option-btn.active {
  background: rgba(56, 189, 248, 0.12);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 16px rgba(56, 189, 248, 0.18);
}

.calc-option-name {
  font-weight: 600;
  font-size: 0.95rem;
  display: block;
  margin-bottom: 4px;
}

.calc-option-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

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

.feature-check-label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 12px 14px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.feature-check-label:hover {
  background: rgba(255, 255, 255, 0.06);
}

.feature-check-label input[type="checkbox"] {
  accent-color: var(--accent-cyan);
  width: 18px;
  height: 18px;
  margin-top: 2px;
  cursor: pointer;
}

.feature-check-info {
  display: flex;
  flex-direction: column;
}

.feature-check-title {
  font-size: 0.9rem;
  font-weight: 600;
}

.feature-check-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.calc-summary-box {
  background: rgba(10, 14, 23, 0.9);
  border: 1px solid var(--border-accent);
  border-radius: 20px;
  padding: 32px;
  position: sticky;
  top: 100px;
  box-shadow: var(--shadow-glow);
}

.calc-summary-box h3 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  margin-bottom: 8px;
}

.calc-price-display {
  margin: 18px 0;
  padding: 16px 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.calc-price-amount {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--accent-cyan);
  line-height: 1;
}

.calc-price-period {
  font-size: 0.825rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.calc-breakdown-list {
  list-style: none;
  margin-bottom: 24px;
}

.calc-breakdown-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  padding: 6px 0;
  color: var(--text-muted);
}

.calc-breakdown-item span:last-child {
  color: var(--text-main);
  font-weight: 600;
}

/* Pricing Section */
.pricing-section {
  padding: 85px 0;
  position: relative;
}

.tier-toggle-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
}

.toggle-label {
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
}

.toggle-label.active {
  color: var(--text-main);
}

.custom-switch {
  width: 52px;
  height: 28px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  position: relative;
  cursor: pointer;
  transition: background var(--transition-fast);
  border: 1px solid var(--border-subtle);
}

.custom-switch::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  background: var(--accent-cyan);
  border-radius: 50%;
  transition: transform var(--transition-fast);
}

.custom-switch.active {
  background: rgba(56, 189, 248, 0.2);
}

.custom-switch.active::after {
  transform: translateX(24px);
  background: var(--accent-indigo);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 22px;
  padding: 38px 30px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
  backdrop-filter: blur(16px);
}

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

.pricing-card.featured {
  background: linear-gradient(180deg, rgba(18, 26, 44, 0.85) 0%, rgba(10, 14, 23, 0.96) 100%);
  border: 2px solid var(--accent-cyan);
  box-shadow: 0 0 45px rgba(56, 189, 248, 0.16);
  transform: scale(1.02);
}

.pricing-card.featured:hover {
  transform: scale(1.02) translateY(-6px);
}

.card-ribbon {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--grad-primary);
  color: #ffffff;
  padding: 4px 16px;
  border-radius: 999px;
  font-size: 0.725rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  box-shadow: 0 4px 15px rgba(56, 189, 248, 0.35);
}

.tier-header {
  margin-bottom: 22px;
}

.tier-title {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.tier-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
  min-height: 42px;
}

.tier-price-box {
  margin-bottom: 26px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--border-subtle);
}

.tier-price-value {
  font-family: var(--font-heading);
  font-size: 2.85rem;
  font-weight: 800;
  line-height: 1;
}

.tier-period {
  font-size: 0.825rem;
  color: var(--text-muted);
  margin-top: 6px;
}

.tier-features-list {
  list-style: none;
  margin-bottom: 30px;
  flex-grow: 1;
}

.tier-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 13px;
  font-size: 0.9rem;
  line-height: 1.5;
}

.tier-feature-item svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--accent-cyan);
}

.tier-feature-item.highlight {
  font-weight: 600;
  color: #ffffff;
}

.tier-feature-item.highlight svg {
  color: var(--accent-emerald);
}

/* AEO Section */
.aeo-section {
  padding: 85px 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
}

.aeo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.aeo-interactive-box {
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-radius: 20px;
  padding: 32px;
  box-shadow: var(--shadow-indigo);
}

.aeo-input-group {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.aeo-input {
  flex: 1;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 12px 16px;
  color: #ffffff;
  outline: none;
  transition: border-color var(--transition-fast);
}

.aeo-input:focus {
  border-color: var(--accent-cyan);
}

.aeo-preview-card {
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 20px;
  margin-top: 16px;
}

.aeo-engine-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(99, 102, 241, 0.2);
  color: var(--accent-indigo);
  margin-bottom: 10px;
}

.aeo-preview-quote {
  font-size: 0.925rem;
  color: var(--text-main);
  line-height: 1.6;
  margin-bottom: 12px;
  border-left: 3px solid var(--accent-cyan);
  padding-left: 14px;
}

.aeo-metrics-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 14px;
}

.aeo-metric-card {
  background: rgba(255, 255, 255, 0.03);
  border-radius: 8px;
  padding: 10px;
  text-align: center;
}

.aeo-metric-val {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--accent-emerald);
}

.aeo-metric-lbl {
  font-size: 0.675rem;
  color: var(--text-subtle);
  text-transform: uppercase;
}

/* Portfolio Showcase Section */
.portfolio-section {
  padding: 85px 0;
}

.portfolio-filter-tabs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 44px;
}

.filter-tab-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 9px 18px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-tab-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
}

.filter-tab-btn.active {
  background: var(--accent-cyan);
  color: #030712;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 18px rgba(56, 189, 248, 0.28);
}

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

.portfolio-item-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.portfolio-item-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-glow);
}

.portfolio-item-card.is-live {
  border-color: rgba(56, 189, 248, 0.35);
}

.portfolio-image-wrapper {
  position: relative;
  height: 270px;
  overflow: hidden;
  background: #000;
}

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

.portfolio-item-card:hover .portfolio-image-wrapper img {
  transform: scale(1.03);
}

.portfolio-overlay-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(6, 8, 14, 0.9);
  backdrop-filter: blur(8px);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.725rem;
  font-weight: 700;
  color: var(--accent-cyan);
  border: 1px solid var(--border-accent);
  text-transform: uppercase;
}

.portfolio-live-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  background: rgba(16, 185, 129, 0.9);
  color: #ffffff;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.725rem;
  font-weight: 700;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 5px;
}

.portfolio-content {
  padding: 26px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.portfolio-title-group h3 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  margin-bottom: 8px;
}

.portfolio-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 18px;
}

.portfolio-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 20px;
}

.tech-tag {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  padding: 3px 9px;
  border-radius: 6px;
  font-size: 0.725rem;
  color: var(--text-muted);
  font-weight: 500;
}

.portfolio-footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
  gap: 12px;
}

.portfolio-stat {
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--accent-emerald);
}

/* Social Media Management & Profile Audit Section */
.social-audit-section {
  padding: 85px 0;
  position: relative;
}

.audit-steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 36px;
}

.audit-step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 18px;
  padding: 28px 22px;
  position: relative;
  transition: all var(--transition-normal);
}

.audit-step-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-indigo);
}

.audit-step-num {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: rgba(56, 189, 248, 0.2);
  margin-bottom: 10px;
}

.audit-step-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.audit-step-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Matrix */
.matrix-section {
  padding: 85px 0;
  background: var(--bg-surface);
}

.matrix-table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  background: var(--bg-card);
  box-shadow: var(--shadow-lg);
}

.matrix-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.matrix-table th, .matrix-table td {
  padding: 16px 22px;
  border-bottom: 1px solid var(--border-subtle);
}

.matrix-table th {
  background: rgba(10, 14, 23, 0.9);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
}

.matrix-table th.col-featured {
  background: rgba(56, 189, 248, 0.1);
  color: var(--accent-cyan);
  border-left: 2px solid var(--accent-cyan);
  border-right: 2px solid var(--accent-cyan);
}

.matrix-table td.col-featured {
  background: rgba(56, 189, 248, 0.02);
  border-left: 2px solid var(--accent-cyan);
  border-right: 2px solid var(--accent-cyan);
}

.matrix-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.matrix-feature-name {
  font-weight: 600;
  font-size: 0.925rem;
  color: var(--text-main);
}

.matrix-check {
  color: var(--accent-emerald);
  font-weight: 700;
}

.matrix-dash {
  color: var(--text-subtle);
}

/* Testimonials */
.testimonials-section {
  padding: 85px 0;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
}

.testimonial-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-light);
  box-shadow: var(--shadow-md);
}

.testimonial-quote {
  font-size: 0.925rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 22px;
}

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

.testimonial-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent-cyan);
}

.author-name {
  font-weight: 700;
  font-size: 0.925rem;
  margin-bottom: 2px;
}

.author-role {
  font-size: 0.775rem;
  color: var(--text-subtle);
}

/* FAQ */
.faq-section {
  padding: 85px 0;
  background: var(--bg-surface);
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

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

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 22px 0;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-main);
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--accent-cyan);
}

.faq-icon {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-normal);
  color: var(--accent-cyan);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal) ease-out;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-answer-inner {
  padding-bottom: 22px;
}

/* Final CTA */
.final-cta {
  padding: 95px 0;
  text-align: center;
  position: relative;
}

.final-cta-card {
  background: radial-gradient(circle at 50% 0%, rgba(56, 189, 248, 0.18) 0%, rgba(10, 14, 23, 0.96) 75%);
  border: 1px solid var(--border-accent);
  border-radius: 26px;
  padding: 56px 36px;
  box-shadow: 0 0 55px rgba(56, 189, 248, 0.12);
  max-width: 940px;
  margin: 0 auto;
}

.final-cta-card h2 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.8vw, 3.1rem);
  font-weight: 800;
  margin-bottom: 16px;
}

.final-cta-card p {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 660px;
  margin: 0 auto 34px;
}

/* Footer */
.footer {
  background: #030508;
  border-top: 1px solid var(--border-subtle);
  padding: 65px 0 28px;
  color: var(--text-subtle);
  font-size: 0.85rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 44px;
  margin-bottom: 44px;
}

.footer-brand p {
  margin-top: 12px;
  color: var(--text-muted);
  max-width: 320px;
  line-height: 1.6;
}

.footer-column h4 {
  color: #ffffff;
  font-size: 0.925rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  flex-wrap: wrap;
  gap: 16px;
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3, 7, 18, 0.82);
  backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--bg-surface);
  border: 1px solid var(--border-accent);
  border-radius: 22px;
  max-width: 580px;
  width: 100%;
  padding: 38px;
  box-shadow: var(--shadow-indigo);
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}

.modal-overlay.active .modal-content {
  transform: translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: 18px;
  right: 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 7px;
  color: var(--text-main);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 11px 15px;
  color: #ffffff;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent-cyan);
}

.form-textarea {
  resize: vertical;
  min-height: 95px;
}

.floating-dock {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 80;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.whatsapp-float-btn {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 18px rgba(37, 211, 102, 0.38);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.whatsapp-float-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 26px rgba(37, 211, 102, 0.55);
}

@media (max-width: 1024px) {
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 580px;
    margin: 0 auto;
  }
  .pricing-card.featured {
    transform: none;
  }
  .pricing-card.featured:hover {
    transform: translateY(-6px);
  }
  .architect-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .architect-portrait-box {
    order: -1;
  }
  .architect-floating-badge {
    position: static;
    display: inline-flex;
    margin-top: 16px;
  }
  .calc-grid {
    grid-template-columns: 1fr;
  }
  .aeo-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .audit-steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .testimonials-grid {
    grid-template-columns: 1fr;
    max-width: 580px;
    margin: 0 auto;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta-group .btn-consultation {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 78px;
    left: 0;
    right: 0;
    background: var(--bg-surface);
    padding: 24px;
    border-bottom: 1px solid var(--border-subtle);
    gap: 18px;
    box-shadow: var(--shadow-lg);
  }
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  .feature-checkbox-grid {
    grid-template-columns: 1fr;
  }
  .architect-creds-grid {
    grid-template-columns: 1fr;
  }
  .audit-steps-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .calc-card {
    padding: 22px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.btn-md {
  padding: 10px 20px;
  font-size: 0.88rem;
  font-weight: 600;
}

/* ==========================================================================
   ADVANCED RESPONSIVE DESIGN (MOBILE, TABLET & DESKTOP FRIENDLY)
   ========================================================================== */

/* Prevent horizontal overflow on small screens */
html, body {
  overflow-x: hidden;
  max-width: 100vw;
  width: 100%;
}

/* Fluid Container Padding */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 clamp(16px, 3.5vw, 32px);
  box-sizing: border-box;
}

/* Responsive Brand Logo */
.brand-name {
  font-family: var(--font-heading);
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

/* Mobile Nav Drawer Styles */
.mobile-only-nav-item {
  display: none;
}

@media (max-width: 900px) {
  .nav-links {
    display: none;
  }
  .mobile-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 6px;
    z-index: 1001;
  }
  .mobile-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-main);
    border-radius: 2px;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
  }
  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: auto;
    background: rgba(8, 11, 20, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 24px clamp(16px, 4vw, 32px);
    border-bottom: 1px solid var(--border-subtle);
    gap: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.7);
    z-index: 999;
  }
  .nav-links.mobile-open a {
    font-size: 1.05rem;
    padding: 8px 0;
    display: block;
    color: var(--text-main);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }
  .mobile-only-nav-item {
    display: block;
  }
  .hide-mobile {
    display: none !important;
  }
}

/* Tablet Optimizations (768px - 1024px) */
@media (min-width: 641px) and (max-width: 1024px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 20px !important;
  }
  .pricing-grid {
    grid-template-columns: 1fr !important;
    max-width: 580px !important;
    margin: 0 auto !important;
    gap: 24px !important;
  }
  .architect-grid {
    grid-template-columns: 1fr !important;
    gap: 32px !important;
    text-align: center;
  }
  .architect-portrait-box {
    margin: 0 auto;
  }
  .architect-creds-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 20px !important;
  }
  .calc-grid {
    grid-template-columns: 1fr !important;
    gap: 32px !important;
  }
  .audit-grid {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
  .testimonials-grid {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
  .footer-content {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 32px !important;
  }
}

/* Mobile Optimizations (<= 640px) */
@media (max-width: 640px) {
  .top-banner {
    padding: 6px 12px;
    font-size: 0.725rem;
  }
  .top-banner-text {
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .top-banner-btn {
    display: none;
  }

  .hero h1 {
    font-size: 2.1rem !important;
    line-height: 1.18 !important;
  }
  .hero-lead {
    font-size: 0.95rem !important;
  }
  .hero-cta-box {
    flex-direction: column;
    width: 100%;
    align-items: stretch;
  }
  .hero-cta-box .btn {
    width: 100%;
    justify-content: center;
  }
  .hero-trust-badges {
    flex-direction: column;
    align-items: center;
    gap: 6px !important;
  }
  .trust-item {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }

  .portfolio-grid {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
  .portfolio-image-wrapper {
    height: 200px !important;
  }
  .portfolio-footer-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .portfolio-footer-row .btn {
    width: 100%;
    justify-content: center;
  }

  .architect-grid {
    grid-template-columns: 1fr !important;
    gap: 28px !important;
  }
  .architect-photo {
    max-width: 260px;
    margin: 0 auto;
  }
  .architect-creds-grid {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 12px !important;
  }
  .stat-item {
    padding: 16px 12px !important;
  }
  .stat-item h3 {
    font-size: 1.8rem !important;
  }
  .stat-item p {
    font-size: 0.75rem !important;
  }

  .pricing-grid {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
  .pricing-card {
    padding: 24px 18px !important;
  }

  .calc-grid {
    grid-template-columns: 1fr !important;
    gap: 24px !important;
  }
  .calc-card {
    padding: 20px 16px !important;
  }
  .calc-tier-btn {
    padding: 12px !important;
  }
  .calc-addon-item {
    padding: 12px 10px !important;
  }
  .calc-addon-item span {
    display: none;
  }

  .aeo-grid {
    grid-template-columns: 1fr !important;
    gap: 24px !important;
  }
  .aeo-input-box {
    flex-direction: column !important;
    width: 100%;
  }
  .aeo-input-box .btn {
    width: 100%;
    justify-content: center;
  }

  .audit-grid {
    grid-template-columns: 1fr !important;
    gap: 18px !important;
  }

  .matrix-table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    width: 100%;
  }
  .matrix-table {
    min-width: 600px;
  }

  .testimonials-grid {
    grid-template-columns: 1fr !important;
    gap: 18px !important;
  }

  .final-cta-buttons {
    flex-direction: column;
    width: 100%;
    gap: 12px;
  }
  .final-cta-buttons .btn {
    width: 100%;
    justify-content: center;
  }

  .footer-content {
    grid-template-columns: 1fr !important;
    gap: 24px !important;
  }

  .modal-card {
    padding: 22px 16px !important;
    max-height: 88vh;
  }
}

/* Touch Friendly Targets */
button, a.btn, .custom-switch, .currency-btn {
  touch-action: manipulation;
}