/* ============================================================
   DEVETEK HELIOS — Landing Page Styles
   Evolusi dari devetek-iot.web.app
   ============================================================ */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@500;600&display=swap');

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
  /* Colors — inherited from devetek-iot */
  --color-bg: #0a0e17;
  --color-bg-alt: #060a12;
  --color-surface: #111827;
  --color-surface-hover: #1a2332;
  --color-border: #1e293b;
  --color-primary: #249d79;
  --color-primary-light: #2ec499;
  --color-primary-glow: rgba(36,157,121,0.15);
  --color-accent: #0271ff;
  --color-accent-light: #3d94ff;
  --color-accent-glow: rgba(2,113,255,0.15);
  --color-text: #f1f5f9;
  --color-text-body: #cbd5e1;
  --color-text-muted: #64748b;
  --color-danger: #e00000;
  --color-warning: #ff9f0c;
  --color-success: #249d79;
  --color-whatsapp: #25D366;

  /* Glassmorphism — NEW for Helios */
  --color-glass: rgba(17,24,39,0.6);
  --color-glass-border: rgba(255,255,255,0.08);

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #249d79, #0271ff);
  --gradient-dark: linear-gradient(180deg, #0a0e17, #060a12);
  --gradient-rainbow: linear-gradient(90deg, #e00, #ff9f0c, #249d79, #0271ff);
  --gradient-glass: linear-gradient(135deg, rgba(36,157,121,0.1), rgba(2,113,255,0.1));

  /* Typography */
  --font-heading: 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  --section-padding: 96px 0;

  /* Borders & Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 40px rgba(36,157,121,0.15);
  --shadow-glow-accent: 0 0 40px rgba(2,113,255,0.15);

  /* Container */
  --container-max: 1200px;
  --container-narrow: 800px;
  --container-wide: 1400px;

  /* Transitions */
  --transition-default: 300ms ease;
  --transition-hover: 200ms ease-out;
  --transition-fade: 600ms ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-body);
  background-color: var(--color-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: color var(--transition-default);
}
a:hover { color: var(--color-primary); }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text);
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: 3.5rem; font-weight: 800; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.5rem; font-weight: 600; }
h4 { font-size: 1.25rem; font-weight: 600; }

/* --- Container --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}
.container--narrow { max-width: var(--container-narrow); }
.container--wide { max-width: var(--container-wide); }

/* --- Section --- */
.section {
  padding: var(--section-padding);
  position: relative;
}
.section--alt { background-color: var(--color-bg-alt); }
.section--glass {
  background: var(--gradient-glass);
}

/* --- Badge / Pill (devetek-iot DNA) --- */
.badge-pill {
  font-family: var(--font-mono);
  font-size: 0.69rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  background: var(--color-primary-glow);
  color: var(--color-primary-light);
  border: 1px solid rgba(36,157,121,0.3);
  display: inline-block;
  margin-bottom: var(--space-md);
}
.badge-pill--accent {
  background: var(--color-accent-glow);
  color: var(--color-accent-light);
  border-color: rgba(2,113,255,0.3);
}
.badge-pill--warning {
  background: rgba(255,159,12,0.15);
  color: var(--color-warning);
  border-color: rgba(255,159,12,0.3);
}
.badge-pill--neutral {
  background: rgba(100,116,139,0.15);
  color: #94a3b8;
  border-color: rgba(100,116,139,0.3);
}

/* --- Section Header --- */
.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}
.section-header h2 {
  margin-bottom: var(--space-md);
}
.section-header p {
  color: var(--color-text-muted);
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition-hover);
  text-decoration: none;
  line-height: 1.4;
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 4px 15px rgba(36,157,121,0.3);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(36,157,121,0.4);
  color: #fff;
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn--ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-light);
  background: var(--color-primary-glow);
}

.btn--text {
  background: transparent;
  color: var(--color-text-muted);
  padding: 12px 16px;
}
.btn--text:hover { color: var(--color-primary-light); }

.btn--whatsapp {
  background: var(--color-whatsapp);
  color: #fff;
}
.btn--whatsapp:hover {
  background: #1ebe5d;
  transform: translateY(-2px);
  color: #fff;
}

.btn--lg {
  padding: 16px 36px;
  font-size: 1rem;
}

/* Shimmer effect on hover for primary buttons */
.btn--primary::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,0.15), transparent);
  transition: left 0.5s;
}
.btn--primary:hover::after { left: 100%; }

/* --- Cards --- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  transition: all var(--transition-default);
  position: relative;
}
.card:hover {
  transform: translateY(-4px);
  border-color: rgba(36,157,121,0.4);
  box-shadow: var(--shadow-glow);
}

.card--glass {
  background: var(--color-glass);
  border-color: var(--color-glass-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.card--glass:hover {
  border-color: rgba(36,157,121,0.3);
  box-shadow: var(--shadow-glow);
}

.card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--color-primary-glow);
  color: var(--color-primary-light);
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
}

.card__title {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

.card__text {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.card__link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary-light);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.card__link:hover { gap: 10px; }
.card__link::after { content: '→'; }

/* --- Grid Layouts --- */
.grid {
  display: grid;
  gap: var(--space-lg);
}
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition-default);
}
.navbar.scrolled {
  background: rgba(10,14,23,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
}
.navbar__logo {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1rem;
  color: #fff;
}

.navbar__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
}
.navbar__links a {
  color: var(--color-text-body);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color var(--transition-default);
  position: relative;
}
.navbar__links a:hover,
.navbar__links a.active { color: var(--color-text); }
.navbar__links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-default);
}
.navbar__links a:hover::after,
.navbar__links a.active::after { width: 100%; }

/* Dropdown */
.navbar__dropdown {
  position: relative;
}
.navbar__dropdown > a::before {
  content: '';
  display: inline-block;
  width: 0; height: 0;
  margin-left: 4px;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  vertical-align: middle;
}
.navbar__dropdown-menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 220px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm) 0;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-default);
  box-shadow: var(--shadow-lg);
}
.navbar__dropdown:hover .navbar__dropdown-menu {
  opacity: 1;
  visibility: visible;
  top: calc(100% + 6px);
}
.navbar__dropdown-menu a {
  display: block;
  padding: 10px 20px;
  font-size: 0.875rem;
}
.navbar__dropdown-menu a::after { display: none; }
.navbar__dropdown-menu a:hover {
  background: var(--color-surface-hover);
  color: var(--color-primary-light);
}

.navbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.navbar__hamburger span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all var(--transition-default);
  border-radius: 2px;
}
.navbar__hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.navbar__hamburger.open span:nth-child(2) { opacity: 0; }
.navbar__hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile menu overlay */
.navbar__mobile {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(10,14,23,0.98);
  z-index: 999;
  padding: 100px var(--space-lg) var(--space-lg);
  flex-direction: column;
  gap: var(--space-lg);
  overflow-y: auto;
}
.navbar__mobile.open { display: flex; }
.navbar__mobile a {
  color: var(--color-text);
  font-size: 1.25rem;
  font-weight: 600;
  font-family: var(--font-heading);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}
.navbar__mobile .btn { margin-top: var(--space-md); text-align: center; justify-content: center; }

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  position: relative;
  overflow: hidden;
}

/* Animated grid background */
.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(36,157,121,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(2,113,255,0.06) 0%, transparent 50%);
  z-index: 0;
}
.hero__bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(30,41,59,0.3) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,41,59,0.3) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero__content { max-width: 560px; }

.hero__title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
}
.hero__title span {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: 1.2rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
}

.hero__stats {
  display: flex;
  gap: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}
.hero__stat {
  text-align: center;
}
.hero__stat-number {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-text);
}
.hero__stat-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Hero mockup */
.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
}
.hero__mockup {
  border-radius: var(--radius-lg);
  box-shadow:
    0 25px 60px rgba(0,0,0,0.5),
    0 0 60px rgba(36,157,121,0.1);
  transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
  transition: transform 0.6s ease;
  max-width: 100%;
}
.hero__mockup:hover {
  transform: perspective(1000px) rotateY(-2deg) rotateX(1deg);
}

/* ============================================================
   TRUSTED BY / LOGO BAR
   ============================================================ */
.trusted {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
}
.trusted__label {
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-lg);
}
.trusted__logos {
  display: flex;
  align-items: center;
  gap: var(--space-3xl);
  justify-content: center;
  flex-wrap: wrap;
}
.trusted__logo {
  height: 32px;
  opacity: 0.4;
  filter: grayscale(100%) brightness(2);
  transition: all var(--transition-default);
}
.trusted__logo:hover {
  opacity: 1;
  filter: grayscale(0%) brightness(1);
}
/* Placeholder logos */
.trusted__placeholder {
  padding: 10px 24px;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ============================================================
   PLATFORM OVERVIEW (3 Pillars)
   ============================================================ */
.pillars .grid { max-width: 1000px; margin: 0 auto; }

.pillar {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
}
.pillar__icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
  font-size: 1.75rem;
}
.pillar__icon--monitor { background: var(--color-primary-glow); color: var(--color-primary-light); }
.pillar__icon--analyze { background: var(--color-accent-glow); color: var(--color-accent-light); }
.pillar__icon--act { background: rgba(255,159,12,0.15); color: var(--color-warning); }

.pillar__title {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}
.pillar__text {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* ============================================================
   FEATURE CARDS GRID
   ============================================================ */
.features-grid .card__icon svg { width: 24px; height: 24px; }

/* ============================================================
   HOW IT WORKS — STEPPER
   ============================================================ */
.stepper {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
}
.stepper::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background: var(--gradient-primary);
  opacity: 0.3;
}
.step {
  text-align: center;
  position: relative;
  z-index: 1;
}
.step__number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  margin: 0 auto var(--space-lg);
  background: var(--color-surface);
  border: 2px solid var(--color-primary);
  color: var(--color-primary-light);
}
.step__icon {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}
.step__title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary-light);
  margin-bottom: var(--space-sm);
}
.step__text {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ============================================================
   PERFORMANCE STATS
   ============================================================ */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  max-width: 900px;
  margin: 0 auto;
}
.stat-card {
  text-align: center;
  padding: var(--space-xl);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-glass);
  backdrop-filter: blur(8px);
}
.stat-card__number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-text);
  line-height: 1;
  margin-bottom: var(--space-sm);
}
.stat-card__number span { color: var(--color-primary-light); }
.stat-card__label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ============================================================
   INTEGRATION LOGOS
   ============================================================ */
.integrations-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
}
.integration-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 8px 20px;
  border-radius: var(--radius-full);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-body);
  transition: all var(--transition-default);
}
.integration-badge:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-light);
  background: var(--color-primary-glow);
}

/* ============================================================
   TESTIMONIAL
   ============================================================ */
.testimonial-slider {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  position: relative;
}
.testimonial {
  display: none;
}
.testimonial.active { display: block; }
.testimonial__quote {
  font-size: 1.2rem;
  color: var(--color-text);
  line-height: 1.7;
  font-style: italic;
  margin-bottom: var(--space-lg);
}
.testimonial__quote::before { content: '"'; color: var(--color-primary); font-size: 2rem; }
.testimonial__quote::after { content: '"'; color: var(--color-primary); font-size: 2rem; }
.testimonial__author {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}
.testimonial__author strong { color: var(--color-text); }
.testimonial-dots {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  margin-top: var(--space-lg);
}
.testimonial-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-border);
  cursor: pointer;
  transition: background var(--transition-default);
}
.testimonial-dot.active { background: var(--color-primary); }

/* ============================================================
   CTA BANNER
   ============================================================ */
.cta-banner {
  padding: var(--space-4xl) 0;
  background: var(--gradient-primary);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.1), transparent 60%);
}
.cta-banner .container { position: relative; z-index: 1; }
.cta-banner h2 {
  font-size: 2.25rem;
  margin-bottom: var(--space-lg);
}
.cta-banner p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: var(--space-xl);
  color: rgba(255,255,255,0.9);
}
.cta-banner .btn--primary {
  background: #fff;
  color: var(--color-bg);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}
.cta-banner .btn--primary:hover { transform: translateY(-2px); color: var(--color-bg); }
.cta-banner .btn--ghost {
  border-color: rgba(255,255,255,0.4);
  color: #fff;
}
.cta-banner .btn--ghost:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
  color: #fff;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--color-bg-alt);
  padding: var(--space-4xl) 0 var(--space-xl);
  border-top: 1px solid var(--color-border);
}
.footer__top {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}
.footer__brand p {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  margin-top: var(--space-md);
  line-height: 1.6;
}
.footer__col h4 {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}
.footer__col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.footer__col ul a {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  transition: color var(--transition-default);
}
.footer__col ul a:hover { color: var(--color-primary-light); }

.footer__hardware {
  margin-bottom: var(--space-2xl);
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-align: center;
}
.footer__hardware a {
  color: var(--color-primary-light);
  font-weight: 600;
}

.footer__divider {
  height: 1px;
  background: var(--gradient-rainbow);
  opacity: 0.4;
  margin-bottom: var(--space-lg);
}
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

/* ============================================================
   SCREENSHOTS / GALLERY
   ============================================================ */
.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  margin-bottom: var(--space-2xl);
}
.gallery-filter {
  padding: 8px 20px;
  border-radius: var(--radius-full);
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-body);
  font-family: var(--font-body);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition-default);
}
.gallery-filter:hover,
.gallery-filter.active {
  background: var(--color-primary-glow);
  border-color: var(--color-primary);
  color: var(--color-primary-light);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}
.gallery-item {
  cursor: pointer;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: all var(--transition-default);
  position: relative;
}
.gallery-item:hover {
  transform: scale(1.03);
  box-shadow: var(--shadow-glow);
  border-color: rgba(36,157,121,0.4);
}
.gallery-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}
.gallery-item__caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: var(--space-md);
  background: linear-gradient(transparent, rgba(10,14,23,0.9));
  font-size: 0.8rem;
  color: var(--color-text);
  opacity: 0;
  transition: opacity var(--transition-default);
}
.gallery-item:hover .gallery-item__caption { opacity: 1; }

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(6,10,18,0.95);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
}
.lightbox.open { display: flex; }
.lightbox__img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}
.lightbox__close {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 2rem;
  cursor: pointer;
  width: 48px; height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background var(--transition-default);
}
.lightbox__close:hover { background: rgba(255,255,255,0.1); }
.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.1);
  border: none;
  color: #fff;
  font-size: 1.5rem;
  width: 48px; height: 48px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-default);
}
.lightbox__nav:hover { background: rgba(255,255,255,0.2); }
.lightbox__nav--prev { left: var(--space-lg); }
.lightbox__nav--next { right: var(--space-lg); }
.lightbox__caption {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-text-body);
  font-size: 0.9rem;
  text-align: center;
}

/* ============================================================
   USE CASE CARDS
   ============================================================ */
.usecase-card {
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.usecase-card__icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-sm);
}
.usecase-card__title {
  font-size: 1.25rem;
}

/* ============================================================
   BREADCRUMB (Inner pages)
   ============================================================ */
.breadcrumb {
  padding: var(--space-md) 0;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-primary-light); }
.breadcrumb span { margin: 0 var(--space-sm); }

/* Page Hero (inner pages) */
.page-hero {
  padding: 140px 0 var(--space-3xl);
  text-align: center;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}
.page-hero h1 {
  font-size: 2.75rem;
  margin-bottom: var(--space-md);
}
.page-hero p {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================================
   CONTACT FORM
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: var(--space-3xl);
  align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: var(--space-xl); }
.contact-info__item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}
.contact-info__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-light);
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-info__text h4 { margin-bottom: 4px; font-size: 0.9rem; }
.contact-info__text p { color: var(--color-text-muted); font-size: 0.875rem; }

.form { display: flex; flex-direction: column; gap: var(--space-md); }
.form__group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: border-color var(--transition-default);
  outline: none;
}
.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}
.form__textarea { min-height: 120px; resize: vertical; }
.form__select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2364748b' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}
.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

/* ============================================================
   FAQ ACCORDION
   ============================================================ */
.faq-list { max-width: 700px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--color-border);
}
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: var(--space-lg) 0;
  background: none;
  border: none;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
}
.faq-question::after {
  content: '+';
  font-size: 1.25rem;
  color: var(--color-primary);
  transition: transform var(--transition-default);
}
.faq-item.open .faq-question::after {
  content: '−';
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-answer p {
  padding-bottom: var(--space-lg);
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ============================================================
   WHATSAPP FLOATING BUTTON
   ============================================================ */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 900;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-sm);
}
.whatsapp-float__btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-whatsapp);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(37,211,102,0.4);
  transition: all var(--transition-hover);
  color: #fff;
  text-decoration: none;
}
.whatsapp-float__btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 25px rgba(37,211,102,0.5);
  color: #fff;
}
.whatsapp-float__btn svg { width: 28px; height: 28px; fill: #fff; }
.whatsapp-float__tooltip {
  background: var(--color-surface);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  color: var(--color-text);
  box-shadow: var(--shadow-md);
  white-space: nowrap;
  opacity: 0;
  transform: translateX(10px);
  transition: all var(--transition-default);
  pointer-events: none;
}
.whatsapp-float:hover .whatsapp-float__tooltip {
  opacity: 1;
  transform: translateX(0);
}

/* Pulse animation */
@keyframes wa-pulse {
  0% { box-shadow: 0 0 0 0 rgba(37,211,102,0.5); }
  70% { box-shadow: 0 0 0 15px rgba(37,211,102,0); }
  100% { box-shadow: 0 0 0 0 rgba(37,211,102,0); }
}
.whatsapp-float__btn { animation: wa-pulse 2s infinite; }
.whatsapp-float__btn:hover { animation: none; }

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 92px;
  right: 30px;
  z-index: 890;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-default);
  font-size: 1rem;
}
.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--color-primary-glow);
  border-color: var(--color-primary);
  color: var(--color-primary-light);
}

/* ============================================================
   COOKIE CONSENT
   ============================================================ */
.cookie-banner {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-md) var(--space-lg);
  z-index: 1100;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  font-size: 0.85rem;
}
.cookie-banner.show { display: flex; }
.cookie-banner p { color: var(--color-text-body); flex: 1; }
.cookie-banner a { color: var(--color-primary-light); text-decoration: underline; }
.cookie-banner__actions { display: flex; gap: var(--space-sm); flex-shrink: 0; }

/* ============================================================
   404 PAGE
   ============================================================ */
.not-found {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-2xl);
}
.not-found__code {
  font-family: var(--font-heading);
  font-size: 8rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: var(--space-md);
}
.not-found h2 { margin-bottom: var(--space-md); font-size: 1.75rem; }
.not-found p { color: var(--color-text-muted); margin-bottom: var(--space-xl); }
.not-found__links {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-bottom: var(--space-2xl);
}
.not-found__popular {
  text-align: left;
  max-width: 300px;
  margin: 0 auto;
}
.not-found__popular h4 {
  font-size: 0.85rem;
  margin-bottom: var(--space-md);
  color: var(--color-text-muted);
}
.not-found__popular ul { list-style: none; display: flex; flex-direction: column; gap: var(--space-sm); }
.not-found__popular a { color: var(--color-primary-light); font-size: 0.9rem; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1199px) {
  h1, .hero__title { font-size: 2.75rem; }
  h2 { font-size: 2rem; }
  .footer__top { grid-template-columns: 1fr repeat(2, 1fr); gap: var(--space-xl); }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 991px) {
  .hero .container { grid-template-columns: 1fr; text-align: center; }
  .hero__content { max-width: 100%; margin: 0 auto; }
  .hero__actions { justify-content: center; }
  .hero__stats { justify-content: center; }
  .hero__visual { margin-top: var(--space-xl); }
  .hero__mockup { transform: none; max-width: 600px; }
  .hero__mockup:hover { transform: none; }

  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .stepper { grid-template-columns: repeat(2, 1fr); }
  .stepper::before { display: none; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 767px) {
  :root {
    --section-padding: 64px 0;
  }
  h1, .hero__title { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  .page-hero h1 { font-size: 2rem; }

  .navbar__links,
  .navbar__actions .btn { display: none; }
  .navbar__hamburger { display: flex; }
  .navbar__actions { gap: var(--space-sm); }

  .hero { min-height: auto; padding: 120px 0 var(--space-3xl); }
  .hero__stats { flex-wrap: wrap; gap: var(--space-md); }
  .hero__stat { flex: 1; min-width: 120px; }

  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: 1fr; }
  .stepper { grid-template-columns: 1fr; gap: var(--space-2xl); }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }

  .footer__top { grid-template-columns: 1fr 1fr; }
  .footer__bottom { flex-direction: column; gap: var(--space-sm); text-align: center; }

  .cta-banner h2 { font-size: 1.75rem; }
  .form__row { grid-template-columns: 1fr; }

  .cookie-banner { flex-direction: column; text-align: center; }
}

@media (max-width: 479px) {
  .stats-row { grid-template-columns: 1fr 1fr; }
  .gallery-grid { grid-template-columns: 1fr; }
  .gallery-item img { height: 180px; }
  .hero__stats { flex-direction: column; align-items: center; }
  .footer__top { grid-template-columns: 1fr; }
}