/* ==========================================================================
   NEXFLOW - Modern AI Infrastructure Design System
   Sequential Section-by-Section ("1 1 Gini") Card Architecture
   ========================================================================== */

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

:root {
  --bg-page: #F6F8FB;
  --bg-card: #FFFFFF;
  --bg-surface-subtle: #F8FAFD;
  --bg-code: #0A0F1D;
  --bg-code-header: #12182B;
  
  --text-main: #090D1A;
  --text-secondary: #566176;
  --text-muted: #8E98AB;
  --text-light: #FFFFFF;
  
  --brand-blue: #2563EB;
  --brand-purple: #7C3AED;
  --brand-violet: #8B5CF6;
  --brand-cyan: #06B6D4;
  --brand-gradient: linear-gradient(135deg, #2563EB 0%, #6366F1 50%, #8B5CF6 100%);
  --brand-text-gradient: linear-gradient(135deg, #2563EB 15%, #7C3AED 85%);
  
  --border-subtle: #EAEFF7;
  --border-card: #E5EAF2;
  --border-hover: #CBD5E1;
  
  --shadow-card: 0 10px 30px -5px rgba(11, 15, 25, 0.04), 0 2px 8px -1px rgba(11, 15, 25, 0.02);
  --shadow-card-hover: 0 16px 36px -6px rgba(99, 102, 241, 0.1), 0 4px 12px -2px rgba(11, 15, 25, 0.04);
  --shadow-sm: 0 2px 8px rgba(11, 15, 25, 0.03);
  --shadow-pop: 0 24px 48px -12px rgba(11, 15, 25, 0.18);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-card: 28px;
  --radius-pill: 9999px;
  
  --font-sans: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.5;
  overflow-x: hidden;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  outline: none;
}

img, svg {
  display: block;
  max-width: 100%;
}

/* ==========================================================================
   Master Container (Sequential 1-by-1 Section Flow)
   ========================================================================== */
.site-wrapper {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 24px 24px 80px;
  display: flex;
  flex-direction: column;
  gap: 36px;
}

/* ==========================================================================
   Header / Sticky Navbar
   ========================================================================== */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
  position: sticky;
  top: 16px;
  z-index: 1000;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand-icon {
  width: 28px;
  height: 28px;
  object-fit: contain;
  filter: drop-shadow(0 2px 6px rgba(59, 130, 246, 0.35));
}

.brand-name {
  font-weight: 800;
  font-size: 15.5px;
  letter-spacing: 0.04em;
  color: #090D1A;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.nav-links a:hover {
  color: var(--text-main);
}

.nav-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #0A0D14;
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  transition: all var(--transition-fast);
}

.nav-cta-btn:hover {
  background: #1E293B;
  transform: translateY(-1px);
}

/* ==========================================================================
   Common Section Card Styling ("1 1 Gini")
   ========================================================================== */
.section-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-card);
  padding: 44px 48px;
  box-shadow: var(--shadow-card);
  position: relative;
  transition: box-shadow var(--transition-base);
  scroll-margin-top: 100px;
}

.section-card:hover {
  box-shadow: var(--shadow-card-hover);
}

/* Badges & Titles */
.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #6366F1;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.15);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
  width: fit-content;
}

.section-badge.muted {
  color: #64748B;
  background: rgba(100, 116, 139, 0.08);
  border-color: rgba(100, 116, 139, 0.12);
}

.section-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #6366F1;
}

.section-title {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--text-main);
  margin-bottom: 8px;
}

.section-desc {
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--text-secondary);
}

/* Button Utilities */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #0A0D14;
  color: #FFFFFF;
  font-size: 13.5px;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: var(--radius-pill);
  transition: all var(--transition-fast);
}

.btn-primary:hover {
  background: #1E293B;
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #FFFFFF;
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
  font-size: 13.5px;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: var(--radius-pill);
  transition: all var(--transition-fast);
}

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

/* ==========================================================================
   1. HERO CARD (Matching User's Attached Screenshot)
   ========================================================================== */
.hero-card {
  background: linear-gradient(90deg, rgba(255,255,255,0.92) 50%, rgba(255,255,255,0.6) 65%, rgba(255,255,255,0) 85%), url('file_00000000039481fa89b8747501fe844d.png');
  background-size: cover;
  background-position: right 15% center;
  border: none;
  border-radius: var(--radius-card);
  padding: 56px 48px;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
  display: block;
}

.hero-content {
  display: flex;
  flex-direction: column;
  max-width: 580px;
  position: relative;
  z-index: 2;
}

.hero-heading {
  font-size: 48px;
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.08;
  margin: 10px 0 14px;
  color: var(--text-main);
}

.hero-heading .gradient-text {
  background: var(--brand-text-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
}

.hero-subtext {
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--text-secondary);
  margin-bottom: 24px;
  max-width: 440px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}

/* Trusted models */
.trusted-wrapper {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.trusted-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

.trusted-logos {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.trusted-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: #475569;
  white-space: nowrap;
}

.trusted-item svg {
  width: 16px;
  height: 16px;
}

.trusted-badge-more {
  font-size: 11.5px;
  font-weight: 600;
  color: #64748B;
  background: #EEF2F6;
  padding: 3px 9px;
  border-radius: var(--radius-pill);
}

.hero-visual {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-img-box {
  width: 100%;
  max-width: 420px;
  height: 380px;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 16px 36px -4px rgba(99, 102, 241, 0.15);
}

.hero-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.hero-card:hover .hero-img-box img {
  transform: scale(1.02);
}

/* ==========================================================================
   2. BUILT FOR DEVELOPERS CARD
   ========================================================================== */
.dev-card {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 40px;
  align-items: center;
}

.dev-info {
  display: flex;
  flex-direction: column;
}

.dev-info .section-title {
  font-size: 38px;
  line-height: 1.1;
  margin-bottom: 12px;
}

.dev-info .section-desc {
  max-width: 380px;
}

.code-window {
  background: var(--bg-code);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 45px -8px rgba(10, 15, 29, 0.5);
  font-family: var(--font-mono);
  display: flex;
  flex-direction: column;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: var(--bg-code-header);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.code-tabs {
  display: flex;
  align-items: center;
  gap: 6px;
}

.code-tab {
  font-size: 12px;
  font-weight: 500;
  color: #8B9BB4;
  padding: 5px 12px;
  border-radius: 8px;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.code-tab.active {
  background: #2563EB;
  color: #FFFFFF;
}

.code-tab:not(.active):hover {
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.08);
}

.code-copy-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11.5px;
  color: #8B9BB4;
  padding: 4px 8px;
  border-radius: 6px;
  transition: all var(--transition-fast);
}

.code-copy-btn:hover {
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.08);
}

.code-body {
  padding: 22px 24px;
  font-size: 13px;
  line-height: 1.65;
  color: #E2E8F0;
  overflow-x: auto;
}

.code-line {
  white-space: pre;
}

.c-kw { color: #F43F5E; }
.c-fn { color: #60A5FA; }
.c-str { color: #34D399; }
.c-key { color: #A78BFA; }
.c-val { color: #FBBF24; }

/* ==========================================================================
   3. MODELS CARD ("The models you need")
   ========================================================================== */
.models-card {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.section-header-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: #475569;
  transition: color var(--transition-fast);
}

.link-arrow:hover {
  color: var(--brand-blue);
}

.models-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
}

.model-card {
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: 18px;
  padding: 20px 14px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  cursor: pointer;
}

.model-card:hover {
  transform: translateY(-3px);
  border-color: rgba(99, 102, 241, 0.35);
  box-shadow: 0 10px 24px -2px rgba(99, 102, 241, 0.12);
}

.model-icon-box {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.model-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 3px;
}

.model-variant {
  font-size: 11.5px;
  font-weight: 500;
  color: var(--text-muted);
}

/* ==========================================================================
   4. TRY NOW (Interactive Chat Card)
   ========================================================================== */
.try-now-card {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 40px;
  align-items: center;
}

.try-now-info {
  display: flex;
  flex-direction: column;
}

.try-now-info .section-desc {
  margin-bottom: 24px;
}

.chat-window {
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.04);
  display: flex;
  flex-direction: column;
}

.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: #FAFBFD;
  border-bottom: 1px solid var(--border-subtle);
}

.chat-header-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--text-main);
}

.chat-header-title img {
  width: 18px;
  height: 18px;
}

.chat-model-selector {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: #475569;
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  outline: none;
}

.chat-messages {
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 140px;
  max-height: 200px;
  overflow-y: auto;
  background: #FFFFFF;
}

.chat-msg-user {
  align-self: flex-end;
  background: #EEF2F6;
  color: #0F172A;
  font-size: 13px;
  font-weight: 500;
  padding: 9px 16px;
  border-radius: 16px 16px 4px 16px;
  max-width: 82%;
}

.chat-msg-ai {
  align-self: flex-start;
  display: flex;
  gap: 10px;
  max-width: 92%;
}

.ai-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 2px;
}

.ai-bubble {
  background: #F8FAFD;
  border: 1px solid var(--border-subtle);
  padding: 12px 14px;
  border-radius: 4px 16px 16px 16px;
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--text-main);
}

.chat-skeleton-lines {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sk-line {
  height: 7px;
  background: #E2E8F0;
  border-radius: 4px;
}

.chat-input-bar {
  padding: 10px 14px;
  background: #FFFFFF;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 8px;
}

.chat-input-bar input {
  flex: 1;
  border: none;
  font-size: 13px;
  color: var(--text-main);
  padding: 6px 8px;
  outline: none;
  background: transparent;
}

.chat-send-btn {
  width: 28px;
  height: 28px;
  background: #2563EB;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  transition: transform var(--transition-fast);
}

.chat-send-btn:hover {
  transform: scale(1.08);
}

/* ==========================================================================
   5. USAGE DASHBOARD CARD
   ========================================================================== */
.usage-card {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 40px;
  align-items: center;
}

.usage-info {
  display: flex;
  flex-direction: column;
}

.usage-info .section-desc {
  margin-bottom: 24px;
}

.usage-widget {
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.03);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

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

.usage-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
}

.usage-dropdown {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 600;
  color: #475569;
  background: #F8FAFD;
  border: 1px solid var(--border-subtle);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  outline: none;
}

.usage-charts-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 24px;
  align-items: center;
}

.donut-gauge {
  position: relative;
  width: 110px;
  height: 110px;
  margin: 0 auto;
}

.donut-gauge svg {
  transform: rotate(-90deg);
}

.donut-inner-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  width: 100%;
}

.donut-pct {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1;
}

.donut-sub {
  font-size: 9px;
  font-weight: 600;
  color: var(--text-muted);
  margin-top: 3px;
  display: block;
}

.bar-chart {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  height: 90px;
}

.chart-bar-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  justify-content: flex-end;
  flex: 1;
  margin: 0 3px;
  cursor: pointer;
}

.chart-bar {
  width: 100%;
  max-width: 10px;
  background: linear-gradient(180deg, #6366F1 0%, #3B82F6 100%);
  border-radius: 4px 4px 0 0;
  transition: height 0.4s ease;
}

.chart-bar.light {
  background: linear-gradient(180deg, #A5B4FC 0%, #93C5FD 100%);
}

.usage-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  border-top: 1px solid var(--border-subtle);
  padding-top: 16px;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-val {
  font-size: 16px;
  font-weight: 800;
  color: var(--text-main);
}

.stat-lbl {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
}

/* ==========================================================================
   6. BUILT ON ROBINHOOD CHAIN CARD
   ========================================================================== */
.chain-card {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 40px;
  align-items: center;
}

.chain-info {
  display: flex;
  flex-direction: column;
}

.chain-info .section-desc {
  margin-bottom: 24px;
}

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

.earnings-widget {
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.03);
  display: flex;
  flex-direction: column;
  gap: 18px;
}

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

.earnings-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
}

.connect-wallet-link {
  font-size: 12px;
  font-weight: 600;
  color: var(--brand-blue);
  background: rgba(37, 99, 235, 0.08);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  transition: all var(--transition-fast);
}

.earnings-body {
  display: flex;
  align-items: center;
  gap: 20px;
}

.earnings-coin {
  width: 72px;
  height: 72px;
  flex-shrink: 0;
  filter: drop-shadow(0 8px 18px rgba(99, 102, 241, 0.35));
}

.earnings-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  flex: 1;
}

.earning-box {
  display: flex;
  flex-direction: column;
}

.earning-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 3px;
}

.earning-amount {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-main);
}

.btn-claim {
  width: 100%;
  padding: 11px 0;
  background: var(--brand-gradient);
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 700;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.28);
  transition: all var(--transition-fast);
}

.btn-claim:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

/* ==========================================================================
   7. GET STARTED CARD (3 Steps)
   ========================================================================== */
.get-started-card {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.get-started-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.step-card {
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: 18px;
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.step-card:hover {
  transform: translateY(-2px);
  border-color: rgba(99, 102, 241, 0.25);
  box-shadow: var(--shadow-card-hover);
}

.step-num-badge {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: #EDE9FE;
  color: #6D28D9;
  font-size: 13.5px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.step-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.step-desc {
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--text-secondary);
}

/* ==========================================================================
   8. PRICING CARD
   ========================================================================== */
.pricing-card {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.pricing-header-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
}

.pricing-toggle {
  display: flex;
  align-items: center;
  background: #0A0D14;
  padding: 4px;
  border-radius: var(--radius-pill);
}

.pricing-toggle-btn {
  padding: 6px 16px;
  font-size: 12px;
  font-weight: 600;
  color: #94A3B8;
  border-radius: var(--radius-pill);
  transition: all var(--transition-fast);
}

.pricing-toggle-btn.active {
  background: #FFFFFF;
  color: #0F172A;
}

.save-badge {
  color: #38BDF8;
  font-size: 11px;
  margin-left: 4px;
}

.pricing-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.price-card {
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 24px 22px 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: all var(--transition-base);
}

.price-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

.price-card.featured {
  border-color: #C7D2FE;
  box-shadow: 0 6px 24px -2px rgba(99, 102, 241, 0.12);
}

.popular-badge {
  position: absolute;
  top: 18px;
  right: 18px;
  background: #EDE9FE;
  color: #6D28D9;
  font-size: 10.5px;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: var(--radius-pill);
}

.plan-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.plan-price-wrap {
  display: flex;
  align-items: baseline;
  gap: 3px;
  margin-bottom: 16px;
}

.plan-price {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-main);
}

.plan-interval {
  font-size: 12px;
  color: var(--text-muted);
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 22px;
}

.plan-features li {
  font-size: 12.5px;
  color: var(--text-secondary);
}

.btn-plan {
  width: 100%;
  padding: 10px 0;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  transition: all var(--transition-fast);
}

.btn-plan-outline {
  border: 1px solid var(--border-subtle);
  background: #FFFFFF;
  color: var(--text-main);
}

.btn-plan-outline:hover {
  background: var(--bg-surface-subtle);
}

.btn-plan-dark {
  background: #0A0D14;
  color: #FFFFFF;
}

.btn-plan-dark:hover {
  background: #1E293B;
}

/* ==========================================================================
   9. FOOTER CARD
   ========================================================================== */
.footer-card {
  padding: 36px 48px 28px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1.6fr;
  gap: 24px;
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
}

.footer-brand-col .brand {
  margin-bottom: 8px;
}

.footer-tagline {
  font-size: 12.5px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.footer-copyright {
  font-size: 11.5px;
  color: var(--text-muted);
  margin-top: auto;
}

.footer-col-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}

.footer-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-nav-list a {
  font-size: 12.5px;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-nav-list a:hover {
  color: var(--text-main);
}

.footer-subscribe-form {
  display: flex;
  align-items: center;
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  padding: 4px 6px 4px 12px;
  margin-top: 6px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.footer-subscribe-form input {
  flex: 1;
  border: none;
  font-size: 12px;
  color: var(--text-main);
  outline: none;
  background: transparent;
}

.footer-submit-btn {
  width: 26px;
  height: 26px;
  background: #0A0D14;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  transition: background var(--transition-fast);
}

.footer-submit-btn:hover {
  background: #1E293B;
}

.footer-bottom-row {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
  font-size: 11.5px;
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
  padding-top: 18px;
}

.footer-bottom-row a:hover {
  color: var(--text-main);
}

/* ==========================================================================
   Modals & Toasts
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 15, 29, 0.6);
  backdrop-filter: blur(8px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: #FFFFFF;
  border-radius: 20px;
  width: 90%;
  max-width: 420px;
  padding: 24px;
  box-shadow: var(--shadow-pop);
  transform: translateY(20px) scale(0.96);
  transition: transform var(--transition-bounce);
}

.modal-overlay.active .modal-card {
  transform: translateY(0) scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.modal-title {
  font-size: 16px;
  font-weight: 700;
}

.modal-close-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #F1F5F9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #64748B;
}

.wallet-options-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
}

.wallet-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: #F8FAFD;
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.wallet-btn:hover {
  background: #FFFFFF;
  border-color: #3B82F6;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.1);
}

.toast-box {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 10001;
  background: #0B0F19;
  color: #FFFFFF;
  padding: 12px 20px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.22);
  display: flex;
  align-items: center;
  gap: 8px;
  transform: translateY(-30px);
  opacity: 0;
  transition: all var(--transition-bounce);
  pointer-events: none;
}

.toast-box.show {
  transform: translateY(0);
  opacity: 1;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 992px) {
  .hero-card, .dev-card, .try-now-card, .usage-card, .chain-card {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .hero-img-box {
    max-width: 100%;
    height: 280px;
  }
  .models-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .section-card {
    padding: 32px 24px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .pricing-cards-grid, .get-started-cards {
    grid-template-columns: 1fr;
  }
  .footer-top-grid {
    grid-template-columns: 1fr 1fr;
  }
  .hero-heading {
    font-size: 36px;
  }
  .section-title {
    font-size: 26px;
  }
}