/* ===========================================================
   ITADIGITAL — Design System
   Clean & Modern SaaS · Verde Esmeralda · Dark/Light Mode
   =========================================================== */

/* ── Google Fonts ──────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ── CSS Custom Properties (Design Tokens) ─────────────── */
:root {
  /* Paleta Verde Esmeralda */
  --green-50:  #f0fdf4;
  --green-100: #dcfce7;
  --green-200: #bbf7d0;
  --green-300: #86efac;
  --green-400: #4ade80;
  --green-500: #22c55e;
  --green-600: #16a34a;
  --green-700: #15803d;
  --green-800: #166534;
  --green-900: #14532d;
  --green-950: #052e16;

  /* Accent primário */
  --accent:         #10b981; /* emerald-500 */
  --accent-light:   #34d399;
  --accent-dark:    #059669;
  --accent-glow:    rgba(16, 185, 129, 0.3);
  --accent-rgb:     16, 185, 129;

  /* Superfícies — Light Mode */
  --bg-base:        #ffffff;
  --bg-surface:     #f8fafc;
  --bg-elevated:    #f1f5f9;
  --bg-overlay:     rgba(0, 0, 0, 0.04);

  /* Bordas */
  --border:         #e2e8f0;
  --border-focus:   var(--accent);
  --border-strong:  #cbd5e1;

  /* Texto */
  --text-primary:   #0f172a;
  --text-secondary: #475569;
  --text-muted:     #94a3b8;
  --text-inverse:   #ffffff;
  --text-accent:    var(--accent);

  /* Gradientes */
  --gradient-hero:   linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #064e3b 100%);
  --gradient-accent: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --gradient-card:   linear-gradient(135deg, rgba(16,185,129,0.05) 0%, transparent 60%);
  --gradient-mesh:   radial-gradient(ellipse at 20% 50%, rgba(16,185,129,0.12) 0%, transparent 50%),
                     radial-gradient(ellipse at 80% 20%, rgba(5,150,105,0.08) 0%, transparent 50%);

  /* Sombras */
  --shadow-sm:   0 1px 2px rgba(0,0,0,0.05);
  --shadow-md:   0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -1px rgba(0,0,0,0.04);
  --shadow-lg:   0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.03);
  --shadow-xl:   0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
  --shadow-glow: 0 0 0 3px var(--accent-glow), 0 4px 20px rgba(var(--accent-rgb), 0.25);

  /* Tipografia */
  --font-sans:  'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:  'JetBrains Mono', 'Fira Code', monospace;

  /* Escala tipográfica */
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;
  --text-4xl:  2.25rem;
  --text-5xl:  3rem;
  --text-6xl:  3.75rem;

  /* Espaçamento */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Border radius */
  --radius-sm:  0.25rem;
  --radius-md:  0.5rem;
  --radius-lg:  0.75rem;
  --radius-xl:  1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Transições */
  --transition-fast:   150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base:   250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:   400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 300ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout */
  --container-max: 1280px;
  --header-height: 72px;
}

/* ── Dark Mode ─────────────────────────────────────────── */
[data-theme="dark"], .dark {
  --bg-base:       #080f1a;
  --bg-surface:    #0d1b2a;
  --bg-elevated:   #132336;
  --bg-overlay:    rgba(255, 255, 255, 0.04);
  --border:        rgba(255,255,255,0.08);
  --border-strong: rgba(255,255,255,0.15);
  --text-primary:  #f1f5f9;
  --text-secondary:#94a3b8;
  --text-muted:    #64748b;
  --shadow-md:     0 4px 6px -1px rgba(0,0,0,0.4), 0 2px 4px -1px rgba(0,0,0,0.2);
  --shadow-lg:     0 10px 15px -3px rgba(0,0,0,0.5), 0 4px 6px -2px rgba(0,0,0,0.3);
  --shadow-xl:     0 20px 25px -5px rgba(0,0,0,0.6), 0 10px 10px -5px rgba(0,0,0,0.35);
  --gradient-card: linear-gradient(135deg, rgba(16,185,129,0.07) 0%, transparent 60%);
  --gradient-mesh: radial-gradient(ellipse at 20% 50%, rgba(16,185,129,0.15) 0%, transparent 50%),
                   radial-gradient(ellipse at 80% 20%, rgba(5,150,105,0.1) 0%, transparent 50%);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

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

img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
ul, ol { list-style: none; }

/* ── Container ──────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

@media (max-width: 640px) {
  .container { padding-inline: var(--space-4); }
}

/* ── Typography ─────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.display-1 { font-size: clamp(2.5rem, 6vw, var(--text-6xl)); font-weight: 800; letter-spacing: -0.03em; }
.display-2 { font-size: clamp(2rem, 4.5vw, var(--text-5xl)); font-weight: 800; letter-spacing: -0.03em; }

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

.eyebrow {
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.eyebrow::before {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: var(--gradient-accent);
  border-radius: var(--radius-full);
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.625rem 1.375rem;
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: all var(--transition-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: white;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::after { opacity: 0.08; }
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--gradient-accent);
  color: #fff;
  box-shadow: 0 1px 2px rgba(var(--accent-rgb), 0.3);
}

.btn-primary:hover {
  box-shadow: 0 4px 14px rgba(var(--accent-rgb), 0.4);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  background: var(--bg-elevated);
  border-color: var(--accent);
  color: var(--accent);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}

.btn-ghost:hover {
  background: var(--bg-elevated);
  color: var(--accent);
}

.btn-lg {
  padding: 0.875rem 2rem;
  font-size: var(--text-base);
  border-radius: var(--radius-xl);
}

.btn-sm {
  padding: 0.375rem 0.875rem;
  font-size: var(--text-xs);
  border-radius: var(--radius-md);
}

/* ── Cards ───────────────────────────────────────────────── */
.card {
  background: var(--bg-surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-card);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.card:hover {
  border-color: rgba(var(--accent-rgb), 0.4);
  box-shadow: var(--shadow-xl), 0 0 0 1px rgba(var(--accent-rgb), 0.1);
  transform: translateY(-2px);
}

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

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

/* ── Badge / Tag ─────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.03em;
}

.badge-accent {
  background: rgba(var(--accent-rgb), 0.12);
  color: var(--accent);
  border: 1px solid rgba(var(--accent-rgb), 0.25);
}

.badge-green  { background: var(--green-100); color: var(--green-700); }
.badge-blue   { background: #eff6ff; color: #1d4ed8; }
.badge-purple { background: #f5f3ff; color: #7c3aed; }
.badge-orange { background: #fff7ed; color: #c2410c; }

[data-theme="dark"] .badge-green  { background: rgba(16,185,129,0.15); color: var(--accent-light); }
[data-theme="dark"] .badge-blue   { background: rgba(59,130,246,0.15); color: #93c5fd; }
[data-theme="dark"] .badge-purple { background: rgba(124,58,237,0.15); color: #c4b5fd; }
[data-theme="dark"] .badge-orange { background: rgba(249,115,22,0.15); color: #fed7aa; }

/* ── Form Elements ───────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: var(--space-2); }

.form-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
}

.form-control {
  width: 100%;
  padding: 0.625rem var(--space-4);
  background: var(--bg-base);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-size: var(--text-sm);
  transition: all var(--transition-fast);
  outline: none;
}

.form-control::placeholder { color: var(--text-muted); }

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

.form-control:invalid:not(:placeholder-shown) {
  border-color: #f97316;
}

textarea.form-control { resize: vertical; min-height: 130px; }

/* ── Header ──────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: rgba(var(--bg-base-rgb, 255,255,255), 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
  transition: all var(--transition-slow);
}

[data-theme="dark"] .site-header {
  background: rgba(8, 15, 26, 0.85);
}

.site-header.scrolled {
  box-shadow: 0 1px 24px rgba(0,0,0,0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  width: 100%;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  flex-shrink: 0;
}

.logo-icon {
  width: 34px;
  height: 34px;
  background: var(--gradient-accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 900;
  color: #fff;
  box-shadow: 0 2px 8px rgba(var(--accent-rgb), 0.35);
}

/* Nav */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  position: relative;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  background: var(--bg-elevated);
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: width var(--transition-base);
}

.nav-link.active::after,
.nav-link:hover::after {
  width: calc(100% - var(--space-6));
}

/* Nav Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* Dark Mode Toggle */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border);
  background: var(--bg-surface);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: var(--bg-elevated);
  color: var(--accent);
  border-color: var(--accent);
}

.theme-toggle svg { transition: transform var(--transition-bounce); }
.theme-toggle:hover svg { transform: rotate(20deg) scale(1.1); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  padding: 10px;
  transition: all var(--transition-fast);
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Nav */
.mobile-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: var(--bg-base);
  border-bottom: 1px solid var(--border);
  padding: var(--space-4) var(--space-6) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: 999;
  box-shadow: var(--shadow-xl);
}

.mobile-nav.open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-nav .nav-link {
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
}

/* ── Footer ──────────────────────────────────────────────── */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding-top: var(--space-20);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  padding-bottom: var(--space-16);
}

.footer-brand .logo { margin-bottom: var(--space-4); }
.footer-brand p {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 280px;
}

.footer-col h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  letter-spacing: -0.01em;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  font-size: var(--text-sm);
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: var(--space-6) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.footer-bottom p {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* Social Links */
.social-links {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.social-link {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border);
  background: var(--bg-base);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.social-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(var(--accent-rgb), 0.08);
  transform: translateY(-2px);
}

/* ── Hero Section ────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  padding: var(--space-24) 0;
  overflow: hidden;
  background: var(--bg-base);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: var(--gradient-mesh);
  pointer-events: none;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(var(--accent-rgb), 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--accent-rgb), 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at 50% 50%, black 30%, transparent 80%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-20);
  align-items: center;
}

.hero-content { max-width: 580px; }

.hero-eyebrow {
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.6s ease both;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, var(--text-6xl));
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-10);
  animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  animation: fadeInUp 0.6s ease 0.3s both;
}

/* Hero Visual */
.hero-visual {
  animation: fadeInRight 0.8s ease 0.4s both;
}

.hero-card {
  background: var(--bg-surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-accent);
}

/* ── Section Styles ──────────────────────────────────────── */
.section { padding: var(--space-24) 0; }
.section-sm { padding: var(--space-16) 0; }

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-16);
}

.section-header .eyebrow { margin-bottom: var(--space-4); }
.section-header h2 { font-size: clamp(1.75rem, 3.5vw, var(--text-4xl)); margin-bottom: var(--space-4); }
.section-header p { font-size: var(--text-lg); color: var(--text-secondary); line-height: 1.7; }

/* ── Grid Layouts ─────────────────────────────────────────── */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-8); }

/* ── Feature Cards ────────────────────────────────────────── */
.feature-card {
  padding: var(--space-8);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: rgba(var(--accent-rgb), 0.1);
  border: 1px solid rgba(var(--accent-rgb), 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: var(--space-5);
  transition: all var(--transition-base);
}

.feature-card:hover .feature-icon {
  background: rgba(var(--accent-rgb), 0.2);
  transform: scale(1.05);
  box-shadow: 0 0 20px rgba(var(--accent-rgb), 0.2);
}

.feature-card h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
}

.feature-card p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── Blog Cards ──────────────────────────────────────────── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.blog-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.blog-card-img {
  aspect-ratio: 16/9;
  overflow: hidden;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
  background: var(--bg-elevated);
}

.blog-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.blog-card:hover .blog-card-img img {
  transform: scale(1.06);
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.blog-card-title {
  font-size: var(--text-xl);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--space-3);
  transition: color var(--transition-fast);
}

.blog-card:hover .blog-card-title { color: var(--accent); }

.blog-card-excerpt {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
  margin-bottom: var(--space-4);
}

.blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--text-muted);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
}

/* ── Stats / Metrics ──────────────────────────────────────── */
.stat-card { text-align: center; padding: var(--space-8) var(--space-6); }

.stat-number {
  font-size: clamp(2rem, 4vw, var(--text-5xl));
  font-weight: 800;
  letter-spacing: -0.04em;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  font-weight: 500;
}

/* ── Pricing Block ────────────────────────────────────────── */
.pricing-card {
  padding: var(--space-8);
  position: relative;
}

.pricing-card.featured {
  border-color: rgba(var(--accent-rgb), 0.5);
  box-shadow: var(--shadow-glow);
}

.pricing-card.featured::before {
  content: 'Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-accent);
  color: #fff;
  font-size: var(--text-xs);
  font-weight: 700;
  padding: 4px 16px;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.pricing-price {
  font-size: var(--text-4xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: var(--space-4) 0;
}

.pricing-price small {
  font-size: var(--text-base);
  font-weight: 400;
  color: var(--text-muted);
}

/* ── Table ───────────────────────────────────────────────── */
.data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: var(--text-sm);
}

.data-table th {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
  background: var(--bg-elevated);
  border-bottom: 1.5px solid var(--border);
}

.data-table th:first-child { border-radius: var(--radius-md) 0 0 0; }
.data-table th:last-child  { border-radius: 0 var(--radius-md) 0 0; }

.data-table td {
  padding: var(--space-4);
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  vertical-align: middle;
}

.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--bg-elevated); }

/* ── Alerts / Notifications ───────────────────────────────── */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-lg);
  border: 1px solid;
  font-size: var(--text-sm);
  line-height: 1.6;
}

.alert-success { background: rgba(16,185,129,0.08); border-color: rgba(16,185,129,0.3); color: var(--green-700); }
.alert-error   { background: rgba(239,68,68,0.08);  border-color: rgba(239,68,68,0.3);  color: #b91c1c; }
.alert-warning { background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.3); color: #b45309; }
.alert-info    { background: rgba(59,130,246,0.08); border-color: rgba(59,130,246,0.3); color: #1d4ed8; }

[data-theme="dark"] .alert-success { color: var(--accent-light); }
[data-theme="dark"] .alert-error   { color: #fca5a5; }
[data-theme="dark"] .alert-warning { color: #fcd34d; }
[data-theme="dark"] .alert-info    { color: #93c5fd; }

/* ── Code / Mono ──────────────────────────────────────────── */
code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--bg-elevated);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  color: var(--accent);
}

pre {
  font-family: var(--font-mono);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  overflow-x: auto;
  font-size: var(--text-sm);
  line-height: 1.7;
}

/* ── Separator ─────────────────────────────────────────────── */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: var(--space-8) 0;
}

/* ── Loading / Skeleton ───────────────────────────────────── */
.skeleton {
  position: relative;
  overflow: hidden;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
}

.skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.08) 50%, transparent 100%);
  animation: shimmer 1.5s linear infinite;
  transform: translateX(-100%);
}

/* ── Scroll Indicator ─────────────────────────────────────── */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: var(--gradient-accent);
  z-index: 9999;
  transition: width 0.1s linear;
}

/* ── Page Transitions ─────────────────────────────────────── */
.page-wrapper {
  animation: pageFadeIn 0.4s ease both;
}

/* ── Animations ──────────────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(32px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes pageFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes shimmer {
  from { transform: translateX(-100%); }
  to   { transform: translateX(100%); }
}

@keyframes pulse-green {
  0%, 100% { box-shadow: 0 0 0 0 rgba(var(--accent-rgb), 0.4); }
  50%       { box-shadow: 0 0 0 8px rgba(var(--accent-rgb), 0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

/* Intersection Observer — animate-on-scroll */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Utility Classes ─────────────────────────────────────── */
.text-accent   { color: var(--accent); }
.text-muted    { color: var(--text-muted); }
.text-sm       { font-size: var(--text-sm); }
.text-xs       { font-size: var(--text-xs); }
.text-center   { text-align: center; }
.font-semibold { font-weight: 600; }
.font-bold     { font-weight: 700; }
.mt-auto       { margin-top: auto; }
.ml-auto       { margin-left: auto; }
.flex          { display: flex; }
.items-center  { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2         { gap: var(--space-2); }
.gap-4         { gap: var(--space-4); }
.gap-6         { gap: var(--space-6); }
.w-full        { width: 100%; }
.p-4           { padding: var(--space-4); }
.p-6           { padding: var(--space-6); }
.mb-4          { margin-bottom: var(--space-4); }
.mb-6          { margin-bottom: var(--space-6); }
.mb-8          { margin-bottom: var(--space-8); }
.mt-6          { margin-top: var(--space-6); }
.mt-8          { margin-top: var(--space-8); }
.rounded-full  { border-radius: var(--radius-full); }
.overflow-hidden { overflow: hidden; }
.relative      { position: relative; }
.z-10          { z-index: 10; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-8); }
}

@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; gap: var(--space-12); }
  .hero-visual { display: none; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 640px) {
  .section { padding: var(--space-16) 0; }
  .hero { padding: var(--space-16) 0; }
  .hero-actions { flex-direction: column; }
  .grid-4 { grid-template-columns: 1fr; }
}

/* ── Scrollbar ───────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-surface); }
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ── Selection ───────────────────────────────────────────── */
::selection {
  background: rgba(var(--accent-rgb), 0.25);
  color: var(--text-primary);
}