/* ============================================================
   CUÁNTICA SOLUCIONES — Estilos principales
   Paleta: Indigo #2B3190 · Cyan #48CCE8 · Teal #3DD4B2
   ============================================================ */

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

:root {
  --primary:       #2B3190;
  --primary-dark:  #1C2070;
  --primary-light: #3D4AB0;
  --cyan:          #48CCE8;
  --teal:          #3DD4B2;
  --accent-purple: #7B8FF5;
  --dark:          #0F1240;
  --dark-card:     #141850;
  --dark-border:   rgba(255,255,255,0.08);
  --text-dark:     #1A1E5C;
  --text-body:     #4A5080;
  --text-light:    #8890C0;
  --bg-soft:       #F4F6FF;
  --bg-white:      #FFFFFF;
  --radius-sm:     8px;
  --radius-md:     14px;
  --radius-lg:     24px;
  --shadow-sm:     0 2px 12px rgba(43,49,144,0.08);
  --shadow-md:     0 8px 32px rgba(43,49,144,0.14);
  --shadow-lg:     0 20px 60px rgba(43,49,144,0.18);
  --transition:    0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text-body);
  background: var(--bg-white);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Reveal Animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5 {
  color: var(--text-dark);
  font-weight: 700;
  line-height: 1.2;
}
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

.gradient-text {
  background: linear-gradient(135deg, var(--cyan) 0%, var(--teal) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Section Shared ---------- */
.section { padding: 96px 0; }
.section-soft { background: var(--bg-soft); }
.section-dark {
  background: var(--dark);
  color: rgba(255,255,255,0.85);
}
.section-dark h2, .section-dark h3, .section-dark h4 {
  color: #fff;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 64px;
}
.section-header p {
  margin-top: 16px;
  font-size: 1.1rem;
  color: var(--text-light);
}
.section-dark .section-header p { color: rgba(255,255,255,0.55); }

.section-tag {
  display: inline-block;
  background: linear-gradient(135deg, rgba(72,204,232,0.12), rgba(61,212,178,0.12));
  color: var(--cyan);
  border: 1px solid rgba(72,204,232,0.3);
  border-radius: 100px;
  padding: 4px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.tag-cyan { color: var(--cyan); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--cyan) 150%);
  color: #fff;
  box-shadow: 0 4px 20px rgba(43,49,144,0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(43,49,144,0.45);
}
.btn-ghost {
  background: rgba(0,0,0,0.25);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.25);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.14);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}
.btn-full { width: 100%; justify-content: center; }
.btn-nav {
  display: inline-flex;
  align-items: center;
  padding: 10px 22px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  background: linear-gradient(135deg, var(--primary), var(--cyan));
  color: #fff;
  transition: all var(--transition);
}
.btn-nav:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(43,49,144,0.4);
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0;
  transition: all var(--transition);
}
.navbar.scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-sm);
}
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  transition: color var(--transition);
}
.navbar.scrolled .nav-logo { color: var(--text-dark); }
.nav-logo img { width: 38px; height: 38px; object-fit: contain; }
.logo-sub {
  font-weight: 400;
  opacity: 0.7;
  font-size: 0.85em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-links li a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.93rem;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  transition: all var(--transition);
}
.nav-links li a:hover { color: #fff; background: rgba(255,255,255,0.1); }
.navbar.scrolled .nav-links li a { color: var(--text-body); }
.navbar.scrolled .nav-links li a:hover { color: var(--primary); background: rgba(43,49,144,0.07); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 6px; }
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: #fff; border-radius: 2px;
  transition: all var(--transition);
}
.navbar.scrolled .nav-toggle span { background: var(--text-dark); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, var(--dark) 0%, var(--primary) 60%, #1B4A6B 100%);
  padding: 120px 0 80px;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
}
.orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, var(--cyan) 0%, transparent 70%);
  top: -200px; right: -100px;
}
.orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, var(--teal) 0%, transparent 70%);
  bottom: -150px; left: -80px;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 100px;
  padding: 6px 18px;
  font-size: 0.85rem;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  margin-bottom: 28px;
  backdrop-filter: blur(8px);
}
.badge-dot {
  width: 8px; height: 8px;
  background: var(--teal);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}
.hero-title { color: #fff; margin-bottom: 24px; }
.hero-desc {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.72);
  max-width: 600px;
  margin-bottom: 40px;
  line-height: 1.75;
}
.hero-desc strong { color: #fff; }

.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  padding: 24px 32px;
  margin-bottom: 40px;
  backdrop-filter: blur(8px);
  width: fit-content;
}
.stat-item { text-align: center; padding: 0 24px; }
.stat-number {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--cyan);
  line-height: 1;
}
.stat-label {
  display: block;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
  margin-top: 6px;
}
.stat-divider {
  width: 1px;
  height: 48px;
  background: rgba(255,255,255,0.15);
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-scroll-indicator {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}
.hero-scroll-indicator span {
  display: block;
  width: 24px; height: 40px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 12px;
  position: relative;
}
.hero-scroll-indicator span::after {
  content: '';
  position: absolute;
  top: 6px; left: 50%;
  transform: translateX(-50%);
  width: 4px; height: 8px;
  background: var(--cyan);
  border-radius: 2px;
  animation: scroll-dot 2s infinite;
}
@keyframes scroll-dot {
  0% { top: 6px; opacity: 1; }
  100% { top: 22px; opacity: 0; }
}

/* ============================================================
   TRUST BAR
   ============================================================ */
.trust-bar {
  padding: 28px 0;
  background: var(--bg-soft);
  border-top: 1px solid rgba(43,49,144,0.08);
  border-bottom: 1px solid rgba(43,49,144,0.08);
}
.trust-bar .container { display: flex; align-items: center; gap: 32px; flex-wrap: wrap; }
.trust-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  white-space: nowrap;
}
.trust-logos {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-light);
  font-size: 0.9rem;
  font-weight: 500;
  opacity: 0.7;
  transition: opacity var(--transition);
}
.trust-item:hover { opacity: 1; color: var(--primary); }
.trust-item svg { color: var(--primary); opacity: 0.6; }

/* ============================================================
   FEATURES GRID
   ============================================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--bg-white);
  border: 1px solid rgba(43,49,144,0.09);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--cyan));
  transform: scaleX(0);
  transition: transform var(--transition);
}
.feature-card:hover::before { transform: scaleX(1); }
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(43,49,144,0.15);
}
.feature-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--icon-color) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--icon-color) 25%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--icon-color);
}
.feature-card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  color: var(--text-dark);
}
.feature-card p { font-size: 0.93rem; line-height: 1.65; }

/* ============================================================
   IA SECTION
   ============================================================ */
.ia-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.ia-content h2 { color: #fff; margin-bottom: 16px; }
.ia-desc {
  color: rgba(255,255,255,0.7);
  font-size: 1.05rem;
  margin-bottom: 36px;
  line-height: 1.75;
}
.ia-desc strong { color: var(--cyan); }
.ia-points { display: flex; flex-direction: column; gap: 20px; }
.ia-point {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.ia-point-icon {
  flex-shrink: 0;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: rgba(61,212,178,0.12);
  border: 1px solid rgba(61,212,178,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--teal);
  margin-top: 2px;
}
.ia-point strong { color: #fff; display: block; margin-bottom: 4px; }
.ia-point p { color: rgba(255,255,255,0.55); font-size: 0.9rem; }

.ia-table-wrap { overflow: hidden; }
.ia-table-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(8px);
}
.ia-table-card h4 { color: #fff; margin-bottom: 4px; }
.table-subtitle { color: rgba(255,255,255,0.4); font-size: 0.85rem; margin-bottom: 20px; }
.ia-table { width: 100%; border-collapse: collapse; }
.ia-table th {
  text-align: left;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.4);
  padding: 0 0 12px;
  border-bottom: 1px solid var(--dark-border);
}
.ia-table td {
  padding: 14px 0;
  font-size: 0.93rem;
  color: rgba(255,255,255,0.7);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.ia-table tr:last-child td { border-bottom: none; }
.highlight-row td {
  color: #fff !important;
  font-size: 1rem !important;
}
.badge-green {
  display: inline-block;
  background: rgba(61,212,178,0.15);
  color: var(--teal);
  border: 1px solid rgba(61,212,178,0.3);
  border-radius: 100px;
  padding: 2px 10px;
  font-size: 0.8rem;
  font-weight: 700;
}
.badge-red {
  display: inline-block;
  background: rgba(239,68,68,0.1);
  color: #EF4444;
  border: 1px solid rgba(239,68,68,0.2);
  border-radius: 100px;
  padding: 2px 10px;
  font-size: 0.8rem;
  font-weight: 700;
}
.table-note {
  margin-top: 16px;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.3);
  line-height: 1.5;
}

/* ============================================================
   SCREENSHOTS
   ============================================================ */
.screenshots-section { background: var(--bg-soft); }
.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.screenshot-placeholder {
  background: #fff;
  border: 2px dashed rgba(43,49,144,0.15);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  text-align: center;
  color: var(--text-light);
  min-height: 220px;
  transition: all var(--transition);
}
.screenshot-placeholder:hover {
  border-color: var(--cyan);
  background: rgba(72,204,232,0.03);
}
.screenshot-placeholder svg { color: rgba(43,49,144,0.25); }
.screenshot-placeholder span { font-weight: 600; color: var(--text-body); }
.screenshot-placeholder p { font-size: 0.8rem; color: var(--text-light); }
/* Cuando agregues imágenes reales, usa esta clase: */
.screenshot-img {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(43,49,144,0.08);
  position: relative;
  background: var(--bg-white);
}
.screenshot-img img { width: 100%; display: block; transition: transform var(--transition); }
.screenshot-img:hover img { transform: scale(1.02); }
.screenshot-label {
  display: block;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-light);
  padding: 10px 0 12px;
  background: var(--bg-white);
}

/* ============================================================
   DESPLIEGUE
   ============================================================ */
.deploy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}
.deploy-card {
  background: #fff;
  border: 1px solid rgba(43,49,144,0.1);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
}
.deploy-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.deploy-featured {
  background: linear-gradient(135deg, var(--primary) 0%, #1B4A8C 100%);
  border-color: transparent;
  transform: scale(1.03);
}
.deploy-featured:hover { transform: scale(1.03) translateY(-6px); }
.deploy-featured h3,
.deploy-featured p,
.deploy-featured .deploy-model { color: #fff !important; }
.deploy-featured .deploy-list li { color: rgba(255,255,255,0.75) !important; }
.deploy-featured .deploy-list li::before { background: var(--teal) !important; }

.deploy-badge {
  position: absolute;
  top: -14px; left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--cyan), var(--teal));
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 100px;
  white-space: nowrap;
}
.deploy-icon {
  width: 70px; height: 70px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(43,49,144,0.08), rgba(72,204,232,0.08));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: var(--primary);
  border: 1px solid rgba(43,49,144,0.1);
}
.deploy-featured .deploy-icon {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.2);
  color: #fff;
}
.deploy-card h3 { margin-bottom: 4px; }
.deploy-model {
  color: var(--text-light);
  font-size: 0.85rem;
  margin-bottom: 14px;
}
.deploy-card p { font-size: 0.92rem; margin-bottom: 24px; color: var(--text-body); }
.deploy-list { text-align: left; margin-bottom: 28px; display: flex; flex-direction: column; gap: 8px; }
.deploy-list li {
  font-size: 0.88rem;
  color: var(--text-body);
  padding-left: 18px;
  position: relative;
}
.deploy-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 8px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cyan);
}

/* ============================================================
   CASOS DE USO
   ============================================================ */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.case-card {
  background: #fff;
  border: 1px solid rgba(43,49,144,0.08);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
}
.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(72,204,232,0.3);
}
.case-emoji { font-size: 2rem; margin-bottom: 14px; }
.case-card h4 { margin-bottom: 10px; color: var(--text-dark); }
.case-card p { font-size: 0.9rem; margin-bottom: 16px; line-height: 1.65; }
.case-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.case-tags span {
  display: inline-block;
  background: rgba(43,49,144,0.06);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 100px;
  border: 1px solid rgba(43,49,144,0.1);
}


/* ============================================================
   CONTACT
   ============================================================ */
.contact-section { background: var(--bg-soft); }
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.contact-info h2 { margin-bottom: 16px; }
.contact-info > p { margin-bottom: 32px; font-size: 1.05rem; }

.contact-items { display: flex; flex-direction: column; gap: 20px; margin-bottom: 32px; }
.contact-item { display: flex; align-items: flex-start; gap: 14px; }
.contact-icon {
  flex-shrink: 0;
  width: 40px; height: 40px;
  background: linear-gradient(135deg, rgba(43,49,144,0.08), rgba(72,204,232,0.08));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  border: 1px solid rgba(43,49,144,0.1);
}
.contact-item strong { display: block; font-weight: 600; color: var(--text-dark); font-size: 0.85rem; }
.contact-item a { color: var(--primary); font-size: 0.93rem; }
.contact-item a:hover { text-decoration: underline; }
.contact-item span { color: var(--text-body); font-size: 0.93rem; }

.garantias { display: flex; flex-direction: column; gap: 10px; }
.garantia-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-dark);
}
.garantia-item svg { color: var(--teal); flex-shrink: 0; }

.contact-form {
  background: #fff;
  border: 1px solid rgba(43,49,144,0.1);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
}
.contact-form h3 { margin-bottom: 28px; font-size: 1.4rem; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-dark);
}
.form-group input,
.form-group textarea,
.form-group select {
  padding: 12px 16px;
  border: 1.5px solid rgba(43,49,144,0.14);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  color: var(--text-dark);
  background: var(--bg-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(72,204,232,0.15);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(74,80,128,0.4); }
.form-group select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238890C0' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px; }
.form-group textarea { resize: vertical; min-height: 100px; }

.form-success {
  text-align: center;
  padding: 24px;
  background: rgba(61,212,178,0.08);
  border: 1px solid rgba(61,212,178,0.2);
  border-radius: var(--radius-md);
  color: #1A9B7A;
  margin-top: 12px;
}
.form-success svg { margin: 0 auto 10px; }
.form-success strong { display: block; font-size: 1.1rem; margin-bottom: 4px; }
.form-success p { font-size: 0.9rem; opacity: 0.8; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,0.6);
  padding: 64px 0 32px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 60px;
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--dark-border);
}
.footer-brand .nav-logo { color: #fff; margin-bottom: 14px; }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 280px; }
.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.footer-col h5 {
  color: #fff;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 10px;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--cyan); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.85rem;
}
.footer-bottom a { color: var(--cyan); }
.footer-bottom a:hover { text-decoration: underline; }

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 32px; right: 32px;
  width: 44px; height: 44px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(43,49,144,0.4);
  opacity: 0;
  transform: translateY(16px);
  transition: all var(--transition);
  pointer-events: none;
  z-index: 999;
}
.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.back-to-top:hover {
  background: var(--cyan);
  transform: translateY(-2px);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .ia-layout { grid-template-columns: 1fr; gap: 40px; }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .deploy-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .deploy-featured { transform: scale(1); }
  .deploy-featured:hover { transform: translateY(-6px); }
  .contact-layout { grid-template-columns: 1fr; gap: 40px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }
  .section-header { margin-bottom: 40px; }

  /* Navbar mobile */
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: rgba(15,18,64,0.97);
    backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: stretch;
    padding: 20px 24px;
    gap: 4px;
    transform: translateY(-20px);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition);
    border-bottom: 1px solid var(--dark-border);
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-links li a {
    display: block;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    color: rgba(255,255,255,0.85) !important;
  }
  .nav-links li a:hover { background: rgba(255,255,255,0.08) !important; color: #fff !important; }
  .btn-nav { text-align: center; margin-top: 8px; }

  /* Hero */
  .hero-stats {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    gap: 0;
    padding: 20px 24px;
  }
  .stat-item { padding: 12px 0; text-align: left; }
  .stat-divider { width: 100%; height: 1px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { justify-content: center; }

  /* Trust */
  .trust-bar .container { flex-direction: column; align-items: flex-start; gap: 16px; }

  /* Features */
  .features-grid { grid-template-columns: 1fr; }

  /* Cases */
  .cases-grid { grid-template-columns: 1fr; }

  /* Screenshots */
  .screenshots-grid { grid-template-columns: 1fr; }

  /* Form */
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 28px 20px; }

  /* Footer */
  .footer-links { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom { flex-direction: column; text-align: center; }

  .back-to-top { bottom: 20px; right: 20px; }
}

@media (max-width: 480px) {
  .hero-stats { padding: 16px 20px; }
  .ia-table-card { padding: 20px 16px; }
  .contact-form { padding: 24px 16px; }
  .footer-links { grid-template-columns: 1fr; }
}