/* ==========================================================================
   AlgoXpert Institutional Quantitative Design System
   Dual-Theme Engine (Light & Dark Modes)
   Vanilla CSS Tokens & Utility Architecture
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

/* --- Root & Light Theme Default --- */
:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Theme Core - Light Mode */
  --bg-body: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-surface-subtle: #f1f5f9;
  --bg-surface-translucent: rgba(255, 255, 255, 0.85);

  --border-color: #e2e8f0;
  --border-subtle: #f1f5f9;
  --border-highlight: #cbd5e1;

  --text-primary: #1a1a2e;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #ffffff;

  /* Institutional Accent Colors */
  --color-primary-navy: #1a1a2e;
  --color-navy-dark: #16213e;
  --color-accent: #00c299;
  --color-accent-hover: #00ab87;
  --color-accent-soft: rgba(0, 194, 153, 0.12);
  --color-accent-glow: 0 0 25px rgba(0, 194, 153, 0.35);

  --color-success: #10b981;
  --color-success-bg: rgba(16, 185, 129, 0.1);
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-danger-bg: rgba(239, 68, 68, 0.1);
  --color-info: #3b82f6;

  /* Terminal & Code Blocks (Always Dark) */
  --terminal-bg: #0b1120;
  --terminal-surface: #0f172a;
  --terminal-border: #1e293b;
  --terminal-text: #e2e8f0;
  --terminal-accent: #00c299;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.1), 0 4px 6px -4px rgba(15, 23, 42, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
  --shadow-accent: 0 10px 25px -5px rgba(0, 194, 153, 0.3);

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transition speeds */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Dark Theme Overrides --- */
[data-theme="dark"] {
  --bg-body: #0d1322;
  --bg-surface: #16213e;
  --bg-surface-elevated: #1a274c;
  --bg-surface-subtle: #111a33;
  --bg-surface-translucent: rgba(22, 33, 62, 0.88);

  --border-color: #233154;
  --border-subtle: #1c2744;
  --border-highlight: #344877;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #0f172a;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px 0 rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.65);
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  overflow-x: hidden;
}

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

h1 { font-size: clamp(2.25rem, 4.5vw, 3.75rem); }
h2 { font-size: clamp(1.85rem, 3.2vw, 2.75rem); }
h3 { font-size: clamp(1.35rem, 2vw, 1.85rem); }
h4 { font-size: 1.25rem; font-weight: 600; }

p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
}

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

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

.mono {
  font-family: var(--font-mono);
}

/* --- Layout Containers --- */
.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.container-sm {
  max-width: 900px;
}

.container-lg {
  max-width: 1400px;
}

.section {
  padding-top: 5.5rem;
  padding-bottom: 5.5rem;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.5rem auto;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
  background-color: var(--color-accent-soft);
  color: var(--color-accent);
  border: 1px solid rgba(0, 194, 153, 0.25);
  margin-bottom: 1rem;
}

.section-title {
  margin-bottom: 1.15rem;
}

.section-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
}

/* --- Buttons & CTAs --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1;
  padding: 0.85rem 1.65rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #0b1120;
  font-weight: 700;
  border-color: var(--color-accent);
  box-shadow: 0 4px 14px rgba(0, 194, 153, 0.35);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: #0b1120;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 194, 153, 0.5);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border-highlight);
  background-color: var(--bg-surface-subtle);
}

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

.btn-dark {
  background-color: var(--color-primary-navy);
  color: #ffffff;
  border-color: #253252;
}

.btn-dark:hover {
  background-color: #121220;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-sm {
  padding: 0.55rem 1.1rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 1.1rem 2.2rem;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

.btn-glow {
  animation: pulseGlow 2.5s infinite;
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 15px rgba(0, 194, 153, 0.3); }
  50% { box-shadow: 0 0 30px rgba(0, 194, 153, 0.6); }
}

/* --- Cards & Surfaces --- */
.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.card:hover {
  border-color: rgba(0, 194, 153, 0.4);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.card-elevated {
  background-color: var(--bg-surface-elevated);
  box-shadow: var(--shadow-md);
}

.card-glow-subtle::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.card-glow-subtle:hover::before {
  opacity: 1;
}

/* --- Navigation Header --- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--bg-surface-translucent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.8rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.03em;
}

.brand-logo .brand-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary-navy), #00c299);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 1.1rem;
  box-shadow: 0 4px 12px rgba(0, 194, 153, 0.35);
}

.brand-logo-img {
  width: 42px;
  height: 42px;
  object-fit: contain;
  display: inline-block;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
  filter: drop-shadow(0 2px 8px rgba(0, 194, 153, 0.25));
}

.brand-logo:hover .brand-logo-img {
  transform: scale(1.06);
}

.brand-logo span.accent {
  color: var(--color-accent);
}

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

.nav-link {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  text-decoration: none;
}

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

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

/* Theme Toggle Button */
.theme-toggle-btn {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface-subtle);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: rotate(15deg);
}

/* --- Hero Section --- */
.hero-section {
  padding-top: 5rem;
  padding-bottom: 6rem;
  position: relative;
  overflow: hidden;
}

.hero-gradient-bg {
  position: absolute;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 194, 153, 0.12) 0%, rgba(22, 33, 62, 0.05) 50%, transparent 70%);
  filter: blur(80px);
  z-index: -1;
  pointer-events: none;
}

.hero-content {
  text-align: center;
  max-width: 940px;
  margin: 0 auto;
}

.hero-title {
  margin-bottom: 1.5rem;
  font-size: clamp(2.4rem, 5vw, 4rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.hero-title .highlight-text {
  background: linear-gradient(135deg, var(--color-accent) 0%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.25rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
  margin-bottom: 3.5rem;
  flex-wrap: wrap;
}

/* Platform Badges Ribbon */
.platform-ribbon {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
}

.platform-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.platform-pill:hover {
  border-color: var(--color-accent);
  color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.platform-pill .dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background-color: var(--color-accent);
}

/* --- Services Grid --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.8rem;
}

.service-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.service-icon-box {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background-color: var(--color-accent-soft);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.service-features-list {
  list-style: none;
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex-grow: 1;
}

.service-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.service-features-list li svg {
  flex-shrink: 0;
  margin-top: 0.2rem;
  color: var(--color-accent);
}

/* --- AI Multi-Agent Architecture Section --- */
.agent-architecture-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

@media (max-width: 992px) {
  .agent-architecture-grid {
    grid-template-columns: 1fr;
  }
}

.agent-node-card {
  border-radius: var(--radius-lg);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 1.8rem;
  position: relative;
  transition: all var(--transition-normal);
}

.agent-node-card.primary {
  border-color: rgba(0, 194, 153, 0.4);
  background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-surface-subtle) 100%);
}

.agent-badge-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  background-color: var(--color-accent-soft);
  color: var(--color-accent);
  margin-bottom: 0.8rem;
}

.circuit-breaker-banner {
  margin-top: 2rem;
  padding: 1.5rem 2rem;
  border-radius: var(--radius-md);
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.circuit-breaker-banner .status-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-danger);
  background-color: var(--color-danger-bg);
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius-sm);
}

/* --- Quant Metrics & Equity Curve --- */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
  margin-bottom: 2.5rem;
}

@media (max-width: 900px) {
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.metric-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.1;
  margin-bottom: 0.4rem;
}

.metric-label {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.equity-curve-container {
  background-color: var(--terminal-bg);
  border: 1px solid var(--terminal-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  color: var(--terminal-text);
}

.equity-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.equity-chart-svg {
  width: 100%;
  height: 260px;
  overflow: visible;
}

/* --- 4-Step Pipeline --- */
.pipeline-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
}

@media (max-width: 992px) {
  .pipeline-steps {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .pipeline-steps {
    grid-template-columns: 1fr;
  }
}

.step-card {
  position: relative;
  padding: 2rem 1.5rem;
  border-radius: var(--radius-lg);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
}

.step-number {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

/* --- Social Proof & Upwork Reviews --- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
}

@media (max-width: 992px) {
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}

.testimonial-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
}

.rating-stars {
  color: #f59e0b;
  display: flex;
  gap: 0.2rem;
  margin-bottom: 1rem;
}

.testimonial-text {
  font-style: italic;
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.2rem;
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary-navy), var(--color-accent));
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
}

.upwork-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: #14a800;
  background-color: rgba(20, 168, 0, 0.1);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
}

/* --- Technical Consultation Lead Form --- */
.consultation-wrapper {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2.5rem;
  align-items: start;
}

@media (max-width: 992px) {
  .consultation-wrapper {
    grid-template-columns: 1fr;
  }
}

.form-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.85rem 1.1rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text-primary);
  background-color: var(--bg-surface-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  outline: none;
  transition: all var(--transition-fast);
}

.form-control:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
  background-color: var(--bg-surface);
}

.chip-selection-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.chip-checkbox {
  position: relative;
  cursor: pointer;
  user-select: none;
}

.chip-checkbox input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.chip-label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface-subtle);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.chip-checkbox input:checked + .chip-label {
  background-color: var(--color-accent);
  color: #0b1120;
  border-color: var(--color-accent);
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(0, 194, 153, 0.35);
}

.file-dropzone {
  border: 2px dashed var(--border-highlight);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  text-align: center;
  background-color: var(--bg-surface-subtle);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.file-dropzone:hover {
  border-color: var(--color-accent);
  background-color: var(--color-accent-soft);
}

.legal-checkbox-container {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-top: 1.2rem;
  margin-bottom: 1.8rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.legal-checkbox-container input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 0.15rem;
  accent-color: var(--color-accent);
  cursor: pointer;
}

/* Sidebar Contact Channels */
.channels-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2.2rem;
}

.channel-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background-color: var(--bg-surface-subtle);
  text-decoration: none;
  color: var(--text-primary);
  margin-bottom: 1rem;
  transition: all var(--transition-fast);
}

.channel-item:hover {
  border-color: var(--color-accent);
  transform: translateX(4px);
}

.channel-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  background-color: var(--color-accent-soft);
  color: var(--color-accent);
}

/* --- Floating Quick Contact Widget --- */
.floating-quick-bar {
  position: fixed;
  bottom: 1.8rem;
  right: 1.8rem;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.quick-btn {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-normal);
  text-decoration: none;
  font-size: 1.4rem;
}

.quick-btn:hover {
  transform: scale(1.1) translateY(-2px);
  color: #ffffff;
}

.quick-btn.whatsapp {
  background-color: #25d366;
}

.quick-btn.cal {
  background-color: var(--color-primary-navy);
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
}

/* --- Modal Overlays --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(11, 17, 32, 0.75);
  backdrop-filter: blur(6px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

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

.modal-dialog {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 650px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}

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

.modal-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: 2rem;
}

/* --- Alerts & Flash Messages --- */
.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.alert-success {
  background-color: var(--color-success-bg);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--color-success);
}

.alert-danger {
  background-color: var(--color-danger-bg);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--color-danger);
}

/* --- Footer --- */
.footer {
  background-color: var(--color-primary-navy);
  color: #94a3b8;
  padding-top: 5rem;
  padding-bottom: 3rem;
  border-top: 1px solid #253252;
}

.footer h4 {
  color: #ffffff;
  margin-bottom: 1.2rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  color: #94a3b8;
  font-size: 0.92rem;
}

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

.footer-bottom {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid #233154;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.88rem;
}

/* --- Responsive Utilities --- */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  .section {
    padding-top: 3.5rem;
    padding-bottom: 3.5rem;
  }
}