/* ============================================
   PayFlow Landing Page - Main Stylesheet
   Design: Stripe-inspired FinTech aesthetic
   ============================================ */

/* --- CSS Variables --- */
:root {
  --color-primary: #0A2540;
  --color-accent: #635BFF;
  --color-accent-light: #7B73FF;
  --color-bg-white: #FFFFFF;
  --color-bg-light: #F6F9FC;
  --color-text: #425466;
  --color-text-secondary: #8898AA;
  --color-success: #00D4AA;
  --color-border: #E3E8EE;
  --color-star: #FFB800;

  --font-sans: 'Inter', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --shadow-sm: 0 1px 3px rgba(10, 37, 64, 0.06);
  --shadow-md: 0 4px 12px rgba(10, 37, 64, 0.08);
  --shadow-lg: 0 8px 30px rgba(10, 37, 64, 0.12);
  --shadow-accent: 0 4px 14px rgba(99, 91, 255, 0.35);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg-white);
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease;
}

img { max-width: 100%; display: block; }
ul { list-style: none; }

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

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.25s var(--ease-out);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: white;
  box-shadow: var(--shadow-accent);
}
.btn-primary:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 91, 255, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-border);
}
.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  padding: 10px 16px;
}
.btn-ghost:hover {
  color: var(--color-accent);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 16px;
  border-radius: var(--radius-md);
}

.btn-block {
  width: 100%;
  justify-content: center;
}

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all 0.3s ease;
  background: rgba(255, 255, 255, 0);
}
.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: 12px 0;
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  transition: color 0.2s ease;
}
.nav-links a:hover {
  color: var(--color-accent);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* --- Hero Section --- */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(180deg, var(--color-bg-light) 0%, var(--color-bg-white) 100%);
}
.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(99, 91, 255, 0.08);
  border: 1px solid rgba(99, 91, 255, 0.15);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: 24px;
}
.badge-dot {
  width: 6px;
  height: 6px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  font-size: 56px;
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-primary);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 18px;
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: 36px;
  max-width: 520px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
}

/* --- Dashboard Mockup --- */
.hero-visual {
  position: relative;
}
.dashboard-mockup {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.mockup-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border);
}
.mockup-dots {
  display: flex;
  gap: 6px;
}
.mockup-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
}
.mockup-dots span:first-child { background: #FF6B6B; }
.mockup-dots span:nth-child(2) { background: #FFD93D; }
.mockup-dots span:last-child { background: #6BCB77; }
.mockup-title {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-secondary);
}
.mockup-body {
  padding: 20px;
}
.mockup-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}
.stat-card {
  padding: 14px;
  background: var(--color-bg-light);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat-label {
  font-size: 11px;
  color: var(--color-text-secondary);
  font-weight: 500;
}
.stat-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
}
.stat-change {
  font-size: 12px;
  font-weight: 600;
}
.stat-change.positive { color: var(--color-success); }

.mockup-chart {
  margin-bottom: 16px;
  padding: 12px;
  background: var(--color-bg-light);
  border-radius: var(--radius-md);
}
.mockup-chart svg {
  width: 100%;
  height: auto;
}

.mockup-transactions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.tx-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  background: var(--color-bg-light);
  border-radius: var(--radius-sm);
  font-size: 13px;
}
.tx-name { color: var(--color-text); font-weight: 500; }
.tx-amount { color: var(--color-primary); font-weight: 600; }
.tx-status {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 10px;
}
.tx-status.success {
  background: rgba(0, 212, 170, 0.1);
  color: var(--color-success);
}
.tx-status.pending {
  background: rgba(255, 184, 0, 0.1);
  color: var(--color-star);
}

/* --- Section Common --- */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
}
.section-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(99, 91, 255, 0.08);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 16px;
}
.section-title {
  font-size: 40px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.section-desc {
  font-size: 17px;
  color: var(--color-text);
  line-height: 1.7;
}

/* --- Features --- */
.features {
  padding: 100px 0;
  background: var(--color-bg-white);
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  padding: 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all 0.3s var(--ease-out);
  background: var(--color-bg-white);
}
.feature-card:hover {
  border-color: rgba(99, 91, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99, 91, 255, 0.06);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}
.feature-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 10px;
}
.feature-desc {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: 12px;
}
.feature-benefit {
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 500;
  line-height: 1.5;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}

/* --- How it Works --- */
.how-it-works {
  padding: 100px 0;
  background: var(--color-bg-light);
}
.steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
}
.step {
  flex: 1;
  max-width: 320px;
  text-align: center;
  padding: 0 20px;
}
.step-number {
  font-size: 48px;
  font-weight: 700;
  color: rgba(99, 91, 255, 0.12);
  margin-bottom: 16px;
  line-height: 1;
}
.step-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}
.step-desc {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 20px;
}
.step-visual {
  display: flex;
  justify-content: center;
  padding: 16px;
  background: var(--color-bg-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}
.step-connector {
  display: flex;
  align-items: center;
  padding-top: 80px;
}

/* --- Use Cases --- */
.use-cases {
  padding: 100px 0;
  background: var(--color-bg-white);
}
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.case-card {
  padding: 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all 0.3s var(--ease-out);
  background: var(--color-bg-white);
}
.case-card:hover {
  border-color: rgba(99, 91, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.case-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.case-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99, 91, 255, 0.06);
  border-radius: var(--radius-md);
}
.case-tag {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent);
  padding: 4px 10px;
  background: rgba(99, 91, 255, 0.08);
  border-radius: 12px;
}
.case-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}
.case-desc {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 16px;
}
.case-points {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.case-points li {
  font-size: 13px;
  color: var(--color-text);
  padding-left: 18px;
  position: relative;
  line-height: 1.5;
}
.case-points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-success);
}

/* --- Trust Section --- */
.trust {
  padding: 100px 0;
  background: var(--color-bg-light);
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}
.trust-card {
  padding: 36px;
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-align: center;
  transition: all 0.3s var(--ease-out);
}
.trust-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.trust-icon {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}
.trust-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}
.trust-desc {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
}

.trust-badges {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}
.badge-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
}

/* --- Social Proof --- */
.social-proof {
  padding: 100px 0;
  background: var(--color-bg-white);
}
.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 60px;
}
.metric {
  text-align: center;
  padding: 24px;
}
.metric-value {
  display: block;
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}
.metric-label {
  font-size: 14px;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.testimonials {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  padding: 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all 0.3s var(--ease-out);
}
.testimonial-card:hover {
  border-color: rgba(99, 91, 255, 0.3);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.testimonial-stars {
  display: flex;
  gap: 2px;
  margin-bottom: 16px;
}
.testimonial-text {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 20px;
  font-style: italic;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-accent);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 600;
}
.author-name {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
}
.author-role {
  display: block;
  font-size: 12px;
  color: var(--color-text-secondary);
}

/* --- Pricing --- */
.pricing {
  padding: 100px 0;
  background: var(--color-bg-light);
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}
.pricing-card {
  padding: 36px;
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  position: relative;
  transition: all 0.3s var(--ease-out);
}
.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.pricing-card.featured {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
}
.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 16px;
  background: var(--color-accent);
  color: white;
  font-size: 12px;
  font-weight: 600;
  border-radius: 12px;
}
.pricing-header {
  margin-bottom: 24px;
}
.pricing-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}
.pricing-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
}
.pricing-price {
  margin-bottom: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--color-border);
}
.price-amount {
  display: block;
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}
.price-period {
  font-size: 14px;
  color: var(--color-text-secondary);
}
.pricing-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
}
.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--color-text);
}

/* --- Final CTA --- */
.final-cta {
  padding: 100px 0;
  background: var(--color-primary);
  position: relative;
  overflow: hidden;
}
.final-cta::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(99, 91, 255, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}
.cta-content {
  text-align: center;
  position: relative;
  z-index: 1;
}
.cta-title {
  font-size: 40px;
  font-weight: 700;
  color: white;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.cta-desc {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.7;
  margin-bottom: 36px;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 20px;
}
.cta-actions .btn-outline {
  border-color: rgba(255, 255, 255, 0.3);
  color: white;
}
.cta-actions .btn-outline:hover {
  border-color: white;
  background: rgba(255, 255, 255, 0.1);
}
.cta-note {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

/* --- Footer --- */
.footer {
  padding: 60px 0 30px;
  background: var(--color-primary);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  margin-bottom: 40px;
}
.footer-brand .nav-logo {
  color: white;
  margin-bottom: 12px;
}
.footer-tagline {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
}
.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: white;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  padding: 4px 0;
  transition: color 0.2s ease;
}
.footer-col a:hover {
  color: white;
}
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
}
.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* --- Scroll Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Apply reveal to key elements */
.feature-card,
.step,
.case-card,
.trust-card,
.testimonial-card,
.pricing-card,
.metric {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}
.feature-card.revealed,
.step.revealed,
.case-card.revealed,
.trust-card.revealed,
.testimonial-card.revealed,
.pricing-card.revealed,
.metric.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-title { font-size: 44px; }
  .section-title { font-size: 32px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials { grid-template-columns: repeat(2, 1fr); }
  .metrics { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links, .nav-actions { display: none; }
  .nav-toggle { display: flex; }
  .navbar.nav-open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    padding: 20px 24px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }
  .navbar.nav-open .nav-actions {
    display: flex;
    position: absolute;
    top: calc(100% + 160px);
    left: 0;
    right: 0;
    background: white;
    padding: 0 24px 20px;
  }

  .hero { padding: 100px 0 60px; }
  .hero-title { font-size: 36px; }
  .hero-subtitle { font-size: 16px; }
  .hero-subtitle br { display: none; }
  .hero-cta { flex-direction: column; }
  .hero-trust { gap: 12px; }

  .features-grid,
  .cases-grid,
  .trust-grid,
  .testimonials { grid-template-columns: 1fr; }

  .steps {
    flex-direction: column;
    align-items: center;
    gap: 24px;
  }
  .step-connector {
    padding-top: 0;
    transform: rotate(90deg);
  }

  .pricing-grid { grid-template-columns: 1fr; }
  .metrics { grid-template-columns: repeat(2, 1fr); }

  .section-title { font-size: 28px; }
  .cta-title { font-size: 28px; }
  .cta-actions { flex-direction: column; align-items: center; }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-links { grid-template-columns: repeat(3, 1fr); }

  .mockup-stats { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-title { font-size: 30px; }
  .section-title { font-size: 24px; }
  .footer-links { grid-template-columns: 1fr; gap: 20px; }
  .metrics { grid-template-columns: 1fr; }
  .trust-badges { gap: 16px; }
}

/* ============================================
   Register Page Styles
   ============================================ */

.register-page {
  background: var(--color-bg-light);
}

/* --- Register Layout --- */
.register-section {
  padding: 100px 0 60px;
  min-height: 100vh;
}
.register-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

/* --- Register Form Area --- */
.register-form-area {
  display: flex;
  justify-content: center;
}
.register-form-wrapper {
  width: 100%;
  max-width: 420px;
}
.register-brand {
  margin-bottom: 32px;
}
.register-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.register-subtitle {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}

/* --- Form Elements --- */
.register-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
}
.form-input {
  width: 100%;
  padding: 12px 14px;
  font-size: 15px;
  font-family: var(--font-sans);
  color: var(--color-primary);
  background: var(--color-bg-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.form-input::placeholder {
  color: var(--color-text-secondary);
}
.form-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(99, 91, 255, 0.1);
}
.form-hint {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-top: 2px;
}

/* --- Captcha --- */
.captcha-area {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.captcha-box {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--color-bg-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}
.captcha-box:hover {
  border-color: var(--color-accent);
}
.captcha-box.verified {
  border-color: var(--color-success);
  background: rgba(0, 212, 170, 0.03);
}
.captcha-checkbox {
  width: 24px;
  height: 24px;
  border: 2px solid var(--color-border);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  flex-shrink: 0;
}
.captcha-checkbox.verified {
  background: var(--color-success);
  border-color: var(--color-success);
}
.captcha-checkbox.loading {
  border-color: var(--color-accent);
  animation: captcha-pulse 0.8s ease-in-out infinite;
}
@keyframes captcha-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.captcha-check-icon {
  display: none;
}
.captcha-checkbox.verified .captcha-check-icon {
  display: block;
}
.captcha-text {
  font-size: 14px;
  color: var(--color-text);
  font-weight: 500;
}
.captcha-brand {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--color-text-secondary);
  padding-left: 2px;
}

/* --- Submit Button --- */
.btn-register {
  width: 100%;
  justify-content: center;
  padding: 14px 28px;
  font-size: 15px;
  margin-top: 4px;
}
.btn-register:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
.btn-loading {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* --- Divider --- */
.register-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 20px 0;
}
.register-divider::before,
.register-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}
.register-divider span {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* --- Social Login --- */
.btn-social {
  width: 100%;
  justify-content: center;
  padding: 12px 20px;
  font-size: 14px;
}

/* --- Login Link --- */
.register-login-link {
  text-align: center;
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-top: 24px;
}
.register-login-link a {
  color: var(--color-accent);
  font-weight: 600;
  transition: color 0.2s ease;
}
.register-login-link a:hover {
  color: var(--color-accent-light);
}

/* --- Register Visual --- */
.register-visual {
  display: flex;
  align-items: center;
}
.register-visual-content {
  width: 100%;
}
.register-visual-text {
  margin-bottom: 32px;
}
.register-visual-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.register-visual-desc {
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 20px;
}
.register-visual-points {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.register-visual-points li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--color-text);
  font-weight: 500;
}
.register-mockup {
  margin-top: 8px;
}

/* --- Register Page Responsive --- */
@media (max-width: 1024px) {
  .register-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .register-form-area {
    order: 1;
  }
  .register-visual {
    order: 2;
  }
  .register-visual-title { font-size: 24px; }
}

@media (max-width: 768px) {
  .register-section {
    padding: 80px 0 40px;
  }
  .register-title { font-size: 24px; }
  .register-form-wrapper {
    max-width: 100%;
  }
  .register-visual-title { font-size: 22px; }
}

@media (max-width: 480px) {
  .register-section {
    padding: 70px 0 30px;
  }
  .register-title { font-size: 22px; }
  .captcha-box { padding: 12px; }
}