/* ==========================================================================
   SIPCO LABS - Premium Enterprise Design System (Dark/Light Hybrid)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@500;700&display=swap');

:root {
  /* Color Tokens - Dark Mode (Default) */
  --bg-primary: #07090e;
  --bg-secondary: #0d111a;
  --bg-tertiary: #131926;
  --surface-card: rgba(19, 25, 38, 0.75);
  --surface-card-hover: rgba(28, 37, 56, 0.9);
  --surface-glass: rgba(13, 17, 26, 0.65);
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(56, 189, 248, 0.3);
  --border-red-highlight: rgba(239, 68, 68, 0.3);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-accent: #38bdf8;

  /* Brand Accents */
  --blue-primary: #2563eb;
  --blue-light: #38bdf8;
  --blue-glow: rgba(37, 99, 235, 0.35);

  --red-primary: #ef4444;
  --red-light: #f43f5e;
  --red-glow: rgba(239, 68, 68, 0.35);

  --gradient-brand: linear-gradient(135deg, #2563eb 0%, #38bdf8 45%, #ef4444 100%);
  --gradient-card: linear-gradient(180deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0.0) 100%);
  --gradient-surface: radial-gradient(circle at 50% 0%, rgba(37, 99, 235, 0.15) 0%, transparent 60%);

  /* 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-blue: 0 0 35px rgba(37, 99, 235, 0.25);
  --shadow-glow-red: 0 0 35px rgba(239, 68, 68, 0.25);

  /* Radius & Transitions */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);

  --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'Space Grotesk', monospace;
}

/* Light Mode Override */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-tertiary: #e2e8f0;
  --surface-card: rgba(255, 255, 255, 0.85);
  --surface-card-hover: #ffffff;
  --surface-glass: rgba(255, 255, 255, 0.75);

  --border-subtle: rgba(15, 23, 42, 0.09);
  --border-highlight: rgba(37, 99, 235, 0.4);
  --border-red-highlight: rgba(239, 68, 68, 0.4);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-accent: #2563eb;

  --blue-glow: rgba(37, 99, 235, 0.15);
  --red-glow: rgba(239, 68, 68, 0.15);

  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.12);
  --shadow-glow-blue: 0 0 30px rgba(37, 99, 235, 0.15);
  --shadow-glow-red: 0 0 30px rgba(239, 68, 68, 0.15);

  --gradient-card: linear-gradient(180deg, rgba(255, 255, 255, 0.8) 0%, rgba(255, 255, 255, 0.4) 100%);
  --gradient-surface: radial-gradient(circle at 50% 0%, rgba(37, 99, 235, 0.08) 0%, transparent 60%);
}

/* Light Mode specific Logo Text adjust */
[data-theme="light"] .logo-text-sipco {
  fill: #0f172a !important;
}
[data-theme="dark"] .logo-text-sipco {
  fill: #ffffff !important;
}

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

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.4s ease, color 0.4s ease;
  position: relative;
}

/* Grid Background Effect */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: 
    linear-gradient(to right, var(--border-subtle) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border-subtle) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  opacity: 0.45;
  z-index: 0;
}

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

/* Typography Helpers */
h1, h2, h3, h4 {
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

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

.text-gradient-red {
  background: linear-gradient(135deg, #f43f5e 0%, #ef4444 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  border-radius: var(--radius-full);
  background: rgba(37, 99, 235, 0.1);
  border: 1px solid var(--border-highlight);
  color: var(--blue-light);
  font-size: 0.825rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.25rem;
}

.section-tag.tag-red {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--border-red-highlight);
  color: #fb7185;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 4rem auto;
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.125rem;
}

/* ==========================================================================
   Navigation Bar
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  display: flex;
  align-items: center;
  z-index: 100;
  background: var(--surface-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--transition);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-brand {
  display: flex;
  align-items: center;
  text-decoration: none;
  height: 48px;
}

.nav-brand svg {
  height: 44px;
  width: auto;
}

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

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--gradient-brand);
  transition: var(--transition);
  border-radius: var(--radius-full);
}

.nav-links a:hover::after {
  width: 100%;
}

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

/* Theme Toggle Button */
.theme-toggle-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  transition: var(--transition);
}

.theme-toggle-btn:hover {
  border-color: var(--border-highlight);
  box-shadow: 0 0 15px var(--blue-glow);
  transform: rotate(15deg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue-primary) 0%, #1d4ed8 100%);
  color: #ffffff;
  box-shadow: var(--shadow-sm), 0 0 20px var(--blue-glow);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
  box-shadow: var(--shadow-md), 0 0 30px rgba(37, 99, 235, 0.45);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--surface-card);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: var(--surface-card-hover);
  border-color: var(--border-highlight);
  transform: translateY(-2px);
}

.btn-red {
  background: linear-gradient(135deg, var(--red-primary) 0%, #b91c1c 100%);
  color: #ffffff;
  box-shadow: 0 0 20px var(--red-glow);
}

.btn-red:hover {
  box-shadow: 0 0 30px rgba(239, 68, 68, 0.5);
  transform: translateY(-2px);
}

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

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  padding-top: 150px;
  padding-bottom: 90px;
  position: relative;
  overflow: hidden;
}

.hero-glow-1 {
  position: absolute;
  top: 10%;
  left: 20%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, var(--blue-glow) 0%, transparent 70%);
  filter: blur(60px);
  pointer-events: none;
  z-index: 0;
}

.hero-glow-2 {
  position: absolute;
  top: 30%;
  right: 15%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--red-glow) 0%, transparent 70%);
  filter: blur(60px);
  pointer-events: none;
  z-index: 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.8rem);
  margin-bottom: 1.5rem;
  letter-spacing: -0.035em;
}

.hero-description {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 620px;
  font-weight: 400;
}

.hero-cta {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

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

.stat-item h3 {
  font-size: 2rem;
  font-weight: 900;
  color: var(--text-primary);
  font-family: var(--font-mono);
  display: flex;
  align-items: baseline;
  gap: 0.2rem;
}

.stat-item h3 span {
  color: var(--blue-light);
  font-size: 1.3rem;
}

.stat-item p {
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Hero Visual Card */
.hero-visual {
  position: relative;
  z-index: 2;
}

.hero-visual-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-highlight);
  box-shadow: var(--shadow-lg), var(--shadow-glow-blue);
  background: var(--surface-card);
  transition: var(--transition);
}

.hero-visual-card:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--shadow-lg), 0 0 50px rgba(37, 99, 235, 0.4);
}

.hero-visual-card img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.hero-visual-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  background: rgba(7, 9, 14, 0.85);
  backdrop-filter: blur(12px);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.badge-pulse {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: #4ade80;
}

.pulse-dot {
  width: 10px;
  height: 10px;
  background-color: #22c55e;
  border-radius: 50%;
  box-shadow: 0 0 10px #22c55e;
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

/* ==========================================================================
   Services Section (Pilares de Ingeniería)
   ========================================================================== */
.services {
  padding: 90px 0;
  position: relative;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 2rem;
}

.service-card {
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  position: relative;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-highlight);
  box-shadow: var(--shadow-lg), var(--shadow-glow-blue);
  background: var(--surface-card-hover);
}

.service-card:hover::before {
  opacity: 1;
}

.service-card.card-red:hover {
  border-color: var(--border-red-highlight);
  box-shadow: var(--shadow-lg), var(--shadow-glow-red);
}

.service-card.card-red::before {
  background: linear-gradient(90deg, #f43f5e, #ef4444);
}

.service-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background: rgba(37, 99, 235, 0.12);
  border: 1px solid var(--border-highlight);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  color: var(--blue-light);
  margin-bottom: 1.75rem;
}

.service-card.card-red .service-icon {
  background: rgba(239, 68, 68, 0.12);
  border-color: var(--border-red-highlight);
  color: #fb7185;
}

.service-card h3 {
  font-size: 1.45rem;
  margin-bottom: 1rem;
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.98rem;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.service-features {
  list-style: none;
  margin-bottom: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.service-features li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.service-features li svg {
  color: #22c55e;
  flex-shrink: 0;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--blue-light);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  transition: var(--transition);
}

.service-card.card-red .service-link {
  color: #fb7185;
}

.service-link:hover {
  gap: 0.75rem;
}

/* ==========================================================================
   Showcase / Products Section (Stokive SaaS Feature)
   ========================================================================== */
.showcase {
  padding: 90px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
}

.showcase-box {
  background: var(--surface-card);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-lg);
  padding: 3.5rem;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3.5rem;
  align-items: center;
  box-shadow: var(--shadow-lg);
}

.showcase-content h3 {
  font-size: 2.25rem;
  margin-bottom: 1rem;
}

.showcase-content p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 2rem;
}

.tech-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2.5rem;
}

.tech-badge {
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.showcase-metric-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.metric-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 1rem;
}

.metric-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.metric-row span {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
}

.metric-row strong {
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 1.1rem;
}

/* ==========================================================================
   Interactive Quote / Project Scope Calculator
   ========================================================================== */
.quote-section {
  padding: 90px 0;
  position: relative;
}

.quote-calculator {
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: var(--shadow-lg);
  max-width: 900px;
  margin: 0 auto;
}

.calculator-step {
  margin-bottom: 2.5rem;
}

.calculator-step h4 {
  font-size: 1.15rem;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.calculator-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.option-card {
  padding: 1.25rem;
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  user-select: none;
}

.option-card:hover {
  border-color: var(--border-highlight);
  background: var(--surface-card-hover);
}

.option-card.selected {
  border-color: var(--blue-primary);
  background: rgba(37, 99, 235, 0.15);
  box-shadow: 0 0 15px var(--blue-glow);
}

.option-card.selected.red-opt {
  border-color: var(--red-primary);
  background: rgba(239, 68, 68, 0.15);
  box-shadow: 0 0 15px var(--red-glow);
}

.option-card h5 {
  font-size: 1rem;
  margin-bottom: 0.35rem;
}

.option-card p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.quote-summary {
  background: var(--bg-primary);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.summary-details h5 {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.summary-details p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact {
  padding: 90px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  position: relative;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-info h3 {
  font-size: 2.25rem;
  margin-bottom: 1.25rem;
}

.contact-info p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 2.5rem;
}

.contact-channels {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.channel-item {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.channel-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-light);
  font-size: 1.3rem;
  flex-shrink: 0;
}

.channel-text h5 {
  font-size: 1rem;
  margin-bottom: 0.2rem;
}

.channel-text a, .channel-text p {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  transition: var(--transition);
}

.channel-text a:hover {
  color: var(--blue-light);
}

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

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

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

.form-control {
  width: 100%;
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--blue-primary);
  box-shadow: 0 0 15px var(--blue-glow);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  padding: 60px 0 30px 0;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand svg {
  height: 42px;
  width: auto;
  margin-bottom: 1.25rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 1rem;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

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

.footer-col ul a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-col ul a:hover {
  color: var(--blue-light);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ==========================================================================
   Floating WhatsApp Button
   ========================================================================== */
.floating-whatsapp {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: #25d366;
  color: #ffffff;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
  transition: var(--transition);
}

.floating-whatsapp:hover {
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.6);
  color: #ffffff;
}

.floating-whatsapp svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-cta {
    justify-content: center;
  }
  .hero-stats {
    max-width: 550px;
    margin: 0 auto;
  }
  .showcase-box {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 80px;
    left: 0;
    width: 100%;
    background: var(--bg-primary);
    flex-direction: column;
    padding: 2rem;
    border-bottom: 1px solid var(--border-subtle);
  }
  .nav-links.active {
    display: flex;
  }
  .mobile-toggle {
    display: block;
  }
  .quote-calculator {
    padding: 1.75rem;
  }
  .floating-whatsapp span {
    display: none;
  }
  .floating-whatsapp {
    padding: 0.9rem;
    border-radius: 50%;
  }
}