/* ================================================================
   Santa Inés — Landing Page
   Dark-glass premium design system
   ================================================================ */

/* --- Design Tokens --- */
:root {
  /* Palette */
  --bg-deep:       #080c15;
  --bg-surface:    #0f1423;
  --card-bg:       rgba(16, 22, 40, 0.65);
  --glass-border:  rgba(255, 255, 255, 0.08);
  --glass-border-hover: rgba(255, 255, 255, 0.15);

  --primary:       #6366f1;          /* Indigo-400 */
  --primary-bright:#818cf8;          /* Indigo-300 for hover */
  --accent:        #22d3ee;          /* Cyan-400 */
  --accent-dim:    rgba(34,211,238,0.12);

  --gradient:      linear-gradient(135deg, #6366f1 0%, #22d3ee 100%);
  --gradient-text:  linear-gradient(135deg, #a5b4fc 0%, #67e8f9 100%);

  --text:          #f1f5f9;
  --text-secondary:#94a3b8;
  --text-dim:      #64748b;

  --success:       #34d399;
  --danger:        #f87171;

  /* Radii */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 20px;
  --r-xl: 28px;

  /* Shadows */
  --shadow-card: 0 4px 32px rgba(0,0,0,0.35);
  --shadow-glow: 0 0 80px rgba(99,102,241,0.15), 0 0 160px rgba(34,211,238,0.08);

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration: 0.4s;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-deep);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, .logo {
  font-family: 'Outfit', sans-serif;
  color: var(--text);
  line-height: 1.15;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

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

/* ================================================================
   HEADER
   ================================================================ */
.main-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 18px 0;
  background: rgba(8, 12, 21, 0.75);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid var(--glass-border);
  transition: background var(--duration) var(--ease-out);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

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

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.main-nav a {
  font-weight: 500;
  font-size: 14px;
  color: var(--text-secondary);
  transition: color var(--duration) var(--ease-out);
  position: relative;
}

.main-nav a:not(.btn-primary)::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient);
  border-radius: 1px;
  transition: width var(--duration) var(--ease-out);
}

.main-nav a:not(.btn-primary):hover {
  color: var(--text);
}

.main-nav a:not(.btn-primary):hover::after {
  width: 100%;
}

.btn-primary {
  background: var(--gradient);
  color: #fff !important;
  padding: 10px 22px;
  border-radius: var(--r-md);
  font-weight: 600 !important;
  font-size: 14px;
  box-shadow: 0 2px 16px rgba(99,102,241,0.3);
  transition: transform var(--duration) var(--ease-out),
              box-shadow var(--duration) var(--ease-out);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 0 10px rgba(99,102,241,0.2), 0 4px 24px rgba(99,102,241,0.45);
}

/* ================================================================
   HERO
   ================================================================ */
.hero-section {
  padding: 100px 0 120px;
  position: relative;
  overflow: hidden;
}

/* Ambient glow behind hero — the signature element */
.hero-section::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(99,102,241,0.18) 0%, rgba(34,211,238,0.08) 40%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  animation: ambientPulse 8s ease-in-out infinite alternate;
}

@keyframes ambientPulse {
  0%   { opacity: 0.7; transform: scale(1); }
  100% { opacity: 1;   transform: scale(1.12); }
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 64px;
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  font-size: 52px;
  font-weight: 700;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
}

.hero-content h1 .gradient-word {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content p {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 520px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
}

.btn-primary-large {
  background: var(--gradient);
  color: #fff;
  padding: 16px 32px;
  border-radius: var(--r-md);
  font-weight: 600;
  font-size: 15px;
  box-shadow: 0 4px 24px rgba(99,102,241,0.35);
  transition: transform var(--duration) var(--ease-out),
              box-shadow var(--duration) var(--ease-out);
}

.btn-primary-large:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 0 10px rgba(99,102,241,0.2), 0 8px 32px rgba(99,102,241,0.5);
}

.btn-secondary-large {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--glass-border-hover);
  padding: 16px 32px;
  border-radius: var(--r-md);
  font-weight: 600;
  font-size: 15px;
  transition: background var(--duration) var(--ease-out),
              border-color var(--duration) var(--ease-out),
              transform var(--duration) var(--ease-out);
}

.btn-secondary-large:hover {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.25);
  transform: translateY(-2px);
  box-shadow: 0 0 0 10px rgba(255,255,255,0.06);
}

/* --- Hero Mockup Card --- */
.hero-visual {
  display: flex;
  justify-content: center;
}

.visual-mockup {
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-card), var(--shadow-glow);
  border: 1px solid var(--glass-border);
  width: 100%;
  max-width: 480px;
  overflow: hidden;
  transition: transform var(--duration) var(--ease-out),
              box-shadow var(--duration) var(--ease-out);
}

.visual-mockup:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card), 0 0 100px rgba(99,102,241,0.2);
}

.mockup-header {
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--glass-border);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 7px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.dot.red    { background-color: #ef4444; }
.dot.yellow { background-color: #facc15; }
.dot.green  { background-color: #4ade80; }

.mockup-title {
  margin-left: 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.mockup-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.metric-card {
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
  padding: 18px;
  display: flex;
  flex-direction: column;
  background: rgba(255,255,255,0.02);
  transition: border-color var(--duration) var(--ease-out);
}

.metric-card:hover {
  border-color: var(--glass-border-hover);
}

.metric-label {
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 500;
}

.metric-value {
  font-family: 'Outfit', sans-serif;
  font-size: 26px;
  font-weight: 700;
  margin: 6px 0 4px;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.metric-change {
  font-size: 12px;
  font-weight: 600;
}

.metric-change.positive { color: var(--success); }
.metric-change.negative { color: var(--danger); }

/* ================================================================
   FEATURES
   ================================================================ */
.features-section {
  padding: 120px 0;
  background: var(--bg-surface);
  position: relative;
}

/* Subtle top separator gradient */
.features-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--glass-border-hover), transparent);
}

.section-title {
  text-align: center;
  font-size: 38px;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: -0.8px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 17px;
  max-width: 600px;
  margin: 0 auto 64px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.feature-card {
  padding: 36px 32px;
  border-radius: var(--r-lg);
  border: 1px solid var(--glass-border);
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform var(--duration) var(--ease-out),
              border-color var(--duration) var(--ease-out),
              box-shadow var(--duration) var(--ease-out);
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(99,102,241,0.3);
  box-shadow: 0 8px 40px rgba(99,102,241,0.1);
}

.feature-icon {
  font-size: 36px;
  margin-bottom: 20px;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-md);
  background: rgba(99,102,241,0.08);
}

.feature-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
  font-weight: 600;
}

.feature-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ================================================================
   BIMONEDA
   ================================================================ */
.bimoneda-section {
  padding: 120px 0;
  position: relative;
  background: var(--bg-deep);
}

.bimoneda-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 72px;
}

.bimoneda-content h2 {
  font-size: 38px;
  margin-bottom: 24px;
  font-weight: 700;
  letter-spacing: -0.8px;
}

.bimoneda-content p {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.75;
}

.exchange-card {
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 36px;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--glass-border);
  max-width: 400px;
  margin: 0 auto;
  transition: transform var(--duration) var(--ease-out),
              box-shadow var(--duration) var(--ease-out);
}

.exchange-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card), 0 0 60px rgba(34,211,238,0.1);
}

.currency-converter {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.currency-row {
  display: flex;
  align-items: center;
  border: 1px solid var(--glass-border);
  border-radius: var(--r-sm);
  overflow: hidden;
  background: rgba(255,255,255,0.02);
}

.currency-tag {
  background: rgba(99,102,241,0.12);
  color: var(--primary-bright);
  font-weight: 700;
  padding: 14px 20px;
  border-right: 1px solid var(--glass-border);
  min-width: 72px;
  text-align: center;
  font-size: 13px;
  letter-spacing: 0.5px;
}

.currency-row input {
  border: none;
  padding: 14px 16px;
  font-size: 20px;
  font-weight: 600;
  font-family: 'Outfit', sans-serif;
  width: 100%;
  outline: none;
  background: transparent;
  color: var(--text);
}

.currency-divider {
  text-align: center;
  position: relative;
  padding: 4px 0;
}

.currency-divider::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  border-top: 1px solid var(--glass-border);
  z-index: 1;
}

.tc-label {
  background: var(--bg-surface);
  position: relative;
  z-index: 2;
  padding: 4px 16px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  border-radius: 20px;
  letter-spacing: 0.3px;
}

/* ================================================================
   SECURITY
   ================================================================ */
.security-section {
  padding: 100px 0;
  position: relative;
  background: var(--bg-surface);
}

.security-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--glass-border-hover), transparent);
}

.security-box {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  padding: 64px 48px;
  border-radius: var(--r-xl);
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

/* Decorative gradient border at the top of the security box */
.security-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 20%;
  right: 20%;
  height: 2px;
  background: var(--gradient);
  border-radius: 0 0 2px 2px;
}

.security-icon {
  font-size: 48px;
  margin-bottom: 24px;
  display: block;
}

.security-box h2 {
  color: var(--text);
  font-size: 32px;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.security-box p {
  color: var(--text-secondary);
  font-size: 17px;
  line-height: 1.75;
}

/* ================================================================
   PRICING
   ================================================================ */
.pricing-section {
  padding: 120px 0;
  background: var(--bg-deep);
}

.pricing-grid {
  display: flex;
  justify-content: center;
  align-items: stretch;
  gap: 28px;
  margin-top: 16px;
}

.pricing-card {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--r-lg);
  border: 1px solid var(--glass-border);
  padding: 48px 36px;
  width: 100%;
  max-width: 380px;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  transition: transform var(--duration) var(--ease-out),
              border-color var(--duration) var(--ease-out),
              box-shadow var(--duration) var(--ease-out);
}

.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}

.pricing-card.featured {
  border-color: rgba(99,102,241,0.4);
  box-shadow: 0 0 40px rgba(99,102,241,0.08);
}

.pricing-card.featured:hover {
  border-color: rgba(99,102,241,0.6);
  box-shadow: 0 0 60px rgba(99,102,241,0.15);
}

.pricing-card .badge {
  background: var(--gradient);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 5px 16px;
  border-radius: 50px;
  position: absolute;
  top: -12px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.pricing-card h3 {
  font-size: 22px;
  margin-bottom: 8px;
  margin-top: 8px;
}

.pricing-eyebrow {
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 20px;
}

.pricing-card .price {
  font-family: 'Outfit', sans-serif;
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 28px;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.pricing-card .price span {
  font-size: 16px;
  -webkit-text-fill-color: var(--text-dim);
}

.pricing-card ul {
  list-style: none;
  width: 100%;
  margin-bottom: 36px;
}

.pricing-card ul li {
  padding: 10px 0;
  border-bottom: 1px solid var(--glass-border);
  text-align: center;
  font-size: 14px;
  color: var(--text-secondary);
}

.pricing-card ul li:last-child {
  border-bottom: none;
}

.pricing-card a.btn-primary,
.pricing-card a.btn-secondary {
  width: 100%;
  text-align: center;
  display: block;
}

.btn-secondary {
  background: transparent;
  color: var(--text) !important;
  border: 1px solid var(--glass-border-hover);
  padding: 12px 22px;
  border-radius: var(--r-md);
  font-weight: 600 !important;
  font-size: 14px;
  transition: background var(--duration) var(--ease-out),
              border-color var(--duration) var(--ease-out),
              transform var(--duration) var(--ease-out),
              box-shadow var(--duration) var(--ease-out);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.25);
  transform: translateY(-2px);
  box-shadow: 0 0 0 10px rgba(255,255,255,0.06);
}

/* ================================================================
   FOOTER
   ================================================================ */
.main-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--glass-border);
  padding: 36px 0;
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-info p {
  font-size: 13px;
  color: var(--text-dim);
}

.footer-info a {
  color: var(--text-secondary);
  margin: 0 8px;
  text-decoration: underline;
  transition: color var(--duration) var(--ease-out);
}

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

/* ================================================================
   ENTRANCE ANIMATIONS
   ================================================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-content {
  animation: fadeInUp 0.8s var(--ease-out) both;
}

.hero-visual {
  animation: fadeInUp 0.8s var(--ease-out) 0.15s both;
}

.feature-card:nth-child(1) { animation: fadeInUp 0.6s var(--ease-out) 0.05s both; }
.feature-card:nth-child(2) { animation: fadeInUp 0.6s var(--ease-out) 0.15s both; }
.feature-card:nth-child(3) { animation: fadeInUp 0.6s var(--ease-out) 0.25s both; }
.feature-card:nth-child(4) { animation: fadeInUp 0.6s var(--ease-out) 0.35s both; }

/* ================================================================
   REDUCED MOTION
   ================================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 768px) {
  .hero-container,
  .bimoneda-container {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }

  .hero-content h1 {
    font-size: 36px;
  }

  .hero-content p {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
    flex-wrap: wrap;
  }

  .section-title {
    font-size: 28px;
  }

  .bimoneda-content h2 {
    font-size: 28px;
  }

  .pricing-grid {
    flex-direction: column;
    align-items: center;
  }

  .footer-container {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .main-nav {
    gap: 16px;
  }

  .main-nav a:not(.btn-primary) {
    display: none;
  }

  .security-box {
    padding: 40px 24px;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 28px;
  }

  .btn-primary-large,
  .btn-secondary-large {
    padding: 14px 24px;
    font-size: 14px;
  }
}