/**
 * Web3 Portal Styles
 *
 * Dark theme matching GCP Web3 Portal layout
 * Header + Sidebar (360px) + Main Content
 */

/* CSS Variables */
:root {
  --header-height: 64px;
  --sidebar-width: 280px;

  /* GCP Portal dark theme palette */
  --bg-page: #131314;
  --bg-sidebar: #131314;
  --bg-header: #1f1f1f;
  --bg-surface: #1e1f20;
  --bg-surface-elevated: #1b1b1b;
  --bg-hover: rgba(168, 199, 250, 0.08);
  --bg-active: #004a77;

  --text-primary: #e3e3e3;
  --text-secondary: #c4c7c5;
  --text-muted: #8e918f;
  --text-active: #c2e7ff;

  --accent-blue: #a8c7fa;
  --accent-cyan: #7fcfff;
  --accent-purple: #d5baff;
  --accent-orange: #ff7700;
  --accent-orange-light: #ff9933;
  --accent-orange-dark: #cc5500;
  --accent-glow: rgba(255, 119, 0, 0.3);

  --border-subtle: #444746;
  --border-outline: #8e918f;

  --banner-bg: #003355;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 100px;
}

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

html {
  color-scheme: only dark;
}

html,
body {
  height: 100%;
}

body {
  font-family: 'Google Sans Text', 'Google Sans', Roboto, Arial, sans-serif;
  background: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.6;
  overflow: hidden;
}

/* =========================================
   HEADER
   ========================================= */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--bg-header);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  z-index: 1000;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-full);
  transition: background 0.15s;
}

.header-menu-btn:hover {
  background: var(--bg-hover);
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: background 0.15s;
}

.header-logo:hover {
  background: var(--bg-hover);
}

.google-cloud-icon {
  flex-shrink: 0;
}

.header-title {
  font-family: 'Google Sans', 'Product Sans', Arial, sans-serif;
  font-size: 1.375rem;
  font-weight: 400;
  white-space: nowrap;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-icon-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-full);
  transition: background 0.15s;
}

.header-icon-btn:hover {
  background: var(--bg-hover);
}

.header-signin-btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 24px;
  background: #8ab4f8;
  color: #062e6f;
  font-family: 'Google Sans', Roboto, Arial, sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-full);
  transition:
    background 0.15s,
    box-shadow 0.15s;
}

.header-signin-btn:hover {
  background: #aecbfa;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* =========================================
   PORTAL LAYOUT
   ========================================= */
.portal-layout {
  display: flex;
  margin-top: var(--header-height);
  height: calc(100vh - var(--header-height));
}

/* =========================================
   SIDEBAR
   ========================================= */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-subtle);
  overflow-y: auto;
  overflow-x: hidden;
  padding: 8px 0;
  flex-shrink: 0;
}

.sidebar::-webkit-scrollbar {
  width: 4px;
}

.sidebar::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
  background: var(--border-subtle);
  border-radius: 2px;
}

.nav-list {
  list-style: none;
  padding: 0 12px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  height: 40px;
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  text-decoration: none;
  font-family: 'Google Sans Text', 'Google Sans', Roboto, Arial, sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  transition:
    background 0.15s,
    color 0.15s;
  white-space: nowrap;
  cursor: pointer;
}

.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--bg-active);
  color: var(--text-active);
}

.nav-item.active .nav-icon {
  color: var(--text-active);
}

.nav-icon {
  flex-shrink: 0;
  color: var(--text-muted);
  transition: color 0.15s;
}

.nav-item:hover .nav-icon {
  color: var(--text-primary);
}

.nav-divider {
  height: 1px;
  background: var(--border-subtle);
  margin: 8px 16px;
}

/* dCoder nav item accent */
.nav-item-dcoder {
  color: var(--accent-orange);
  font-weight: 600;
}

.nav-item-dcoder .nav-icon {
  color: var(--accent-orange);
}

.nav-item-dcoder:hover {
  background: rgba(255, 119, 0, 0.1);
  color: var(--accent-orange-light);
}

.nav-item-dcoder:hover .nav-icon {
  color: var(--accent-orange-light);
}

.nav-item-dcoder.active {
  background: rgba(255, 119, 0, 0.2);
  color: var(--accent-orange);
}

.nav-item-dcoder.active .nav-icon {
  color: var(--accent-orange);
}

/* Sidebar scrim (mobile overlay) */
.sidebar-scrim {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 899;
}

.sidebar-scrim.visible {
  display: block;
}

/* =========================================
   MAIN CONTENT
   ========================================= */
.main-content {
  flex: 1;
  overflow-y: auto;
  background: var(--bg-page);
}

.page {
  display: none;
}

.page-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 40px 32px;
}

.page-title {
  font-family: 'Google Sans', Roboto, Arial, sans-serif;
  font-size: 2rem;
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.page-description {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 640px;
}

/* =========================================
   HOME PAGE
   ========================================= */
.welcome-hero {
  padding: 48px 0 40px;
}

.welcome-title {
  font-family: 'Google Sans', Roboto, Arial, sans-serif;
  font-size: 2.5rem;
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.welcome-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
}

/* Faucet Banner */
.faucet-banner {
  background: var(--banner-bg);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 32px;
}

.faucet-banner-content {
  display: flex;
  align-items: center;
  gap: 16px;
}

.faucet-banner-icon {
  font-size: 1.5rem;
}

.faucet-banner-content strong {
  color: var(--text-primary);
  display: block;
  margin-bottom: 2px;
}

.faucet-banner-content p {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.faucet-banner-cta {
  display: inline-flex;
  align-items: center;
  padding: 8px 24px;
  background: transparent;
  color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan);
  border-radius: var(--radius-full);
  font-family: 'Google Sans', Roboto, Arial, sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.15s;
}

.faucet-banner-cta:hover {
  background: rgba(127, 207, 255, 0.1);
}

/* Home Cards */
.home-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.home-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  transition:
    border-color 0.15s,
    box-shadow 0.15s;
}

.home-card:hover {
  border-color: var(--border-outline);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.home-card h3 {
  font-family: 'Google Sans', Roboto, Arial, sans-serif;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.home-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.card-badge {
  display: inline-block;
  padding: 2px 10px;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: var(--radius-full);
  background: var(--bg-surface-elevated);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
}

.card-badge-accent {
  background: rgba(255, 119, 0, 0.15);
  color: var(--accent-orange);
  border-color: rgba(255, 119, 0, 0.3);
}

/* =========================================
   DISCOVER PAGE
   ========================================= */
.catalog-sections {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.catalog-section {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
}

.catalog-section h2 {
  font-family: 'Google Sans', Roboto, Arial, sans-serif;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--accent-blue);
  margin-bottom: 8px;
}

.catalog-section p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* =========================================
   FAUCET PAGE
   ========================================= */
.faucet-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px;
  max-width: 480px;
}

.faucet-card h2 {
  font-family: 'Google Sans', Roboto, Arial, sans-serif;
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.faucet-card p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: 20px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 10px 24px;
  background: #8ab4f8;
  color: #062e6f;
  font-family: 'Google Sans', Roboto, Arial, sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-full);
  transition:
    background 0.15s,
    box-shadow 0.15s;
}

.btn-primary:hover {
  background: #aecbfa;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* =========================================
   PROTOCOLS PAGE
   ========================================= */
.protocols-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.protocol-chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition:
    border-color 0.15s,
    color 0.15s;
}

.protocol-chip:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

/* =========================================
   EVENTS PAGE
   ========================================= */
.events-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.event-item {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 20px 24px;
  background: var(--bg-surface);
  transition: background 0.15s;
}

.event-item:hover {
  background: var(--bg-surface-elevated);
}

.event-date {
  font-family: 'Google Sans', Roboto, Arial, sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--accent-blue);
  min-width: 48px;
}

.event-info h3 {
  font-family: 'Google Sans', Roboto, Arial, sans-serif;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.event-info p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* =========================================
   LEARN PAGE
   ========================================= */
.learn-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.learn-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  transition:
    border-color 0.15s,
    box-shadow 0.15s;
}

.learn-card:hover {
  border-color: var(--border-outline);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.learn-type {
  display: inline-block;
  padding: 2px 10px;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: var(--radius-full);
  background: rgba(168, 199, 250, 0.1);
  color: var(--accent-blue);
  margin-bottom: 12px;
}

.learn-card h3 {
  font-family: 'Google Sans', Roboto, Arial, sans-serif;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.learn-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* =========================================
   UNIVERSAL LEDGER PAGE
   ========================================= */
.ul-feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.ul-feature {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
}

.ul-feature h3 {
  font-family: 'Google Sans', Roboto, Arial, sans-serif;
  font-size: 1rem;
  font-weight: 500;
  color: var(--accent-purple);
  margin-bottom: 8px;
}

.ul-feature p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* =========================================
   STARTUP PROGRAM PAGE
   ========================================= */
.startup-benefits {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.startup-benefit {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
}

.startup-benefit h3 {
  font-family: 'Google Sans', Roboto, Arial, sans-serif;
  font-size: 1rem;
  font-weight: 500;
  color: var(--accent-cyan);
  margin-bottom: 8px;
}

.startup-benefit p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* =========================================
   dCODER PAGE (inline landing page)
   ========================================= */
.dcoder-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--header-height));
  padding: 48px 40px;
  text-align: center;
}

/* ASCII Logo */
.ascii-logo {
  font-family: 'Courier New', Consolas, monospace;
  font-size: clamp(6px, 1.5vw, 12px);
  line-height: 1.2;
  color: var(--accent-orange);
  margin-bottom: 24px;
  overflow-x: auto;
  white-space: pre;
  text-shadow:
    0 0 10px var(--accent-glow),
    0 0 20px var(--accent-glow);
  animation: glow 3s ease-in-out infinite alternate;
}

@keyframes glow {
  from {
    text-shadow:
      0 0 10px var(--accent-glow),
      0 0 20px var(--accent-glow);
  }
  to {
    text-shadow:
      0 0 15px var(--accent-glow),
      0 0 30px var(--accent-glow),
      0 0 40px rgba(255, 119, 0, 0.2);
  }
}

/* Tagline */
.tagline {
  font-family: 'Google Sans', Roboto, Arial, sans-serif;
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-weight: 300;
  letter-spacing: 0.5px;
}

/* Divider */
.divider {
  width: 100%;
  max-width: 500px;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 119, 0, 0.2) 20%,
    var(--accent-orange) 50%,
    rgba(255, 119, 0, 0.2) 80%,
    transparent
  );
  margin: 32px 0;
}

/* Features List */
.features {
  list-style: none;
  text-align: left;
  max-width: 500px;
  margin: 0 auto 32px;
}

.features li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 14px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background: var(--accent-orange);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-glow);
}

/* Sign In Button */
.signin-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 14px 32px;
  background: var(--accent-orange);
  color: var(--text-primary);
  font-family: 'Google Sans', Roboto, Arial, sans-serif;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow:
    0 4px 14px rgba(255, 119, 0, 0.4),
    0 0 0 0 var(--accent-orange);
}

.signin-button:hover {
  background: var(--accent-orange-light);
  transform: translateY(-2px);
  box-shadow:
    0 6px 20px rgba(255, 119, 0, 0.5),
    0 0 0 0 var(--accent-orange);
}

.signin-button:active {
  transform: translateY(0);
  background: var(--accent-orange-dark);
}

.google-icon {
  flex-shrink: 0;
}

/* Footer */
.footer {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 8px;
}

/* =========================================
   RESPONSIVE - MOBILE
   ========================================= */
@media (max-width: 600px) {
  :root {
    --header-height: 56px;
  }

  .header-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .header-title {
    font-size: 1.125rem;
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 900;
    transform: translateX(-100%);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border-right: none;
    box-shadow: none;
    padding-top: calc(var(--header-height) + 8px);
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 16px rgba(0, 0, 0, 0.5);
  }

  .dcoder-content {
    padding: 32px 24px;
  }

  .ascii-logo {
    font-size: 5px;
  }

  .tagline {
    font-size: 1.1rem;
  }

  .features li {
    font-size: 0.9rem;
  }

  .signin-button {
    width: 100%;
    padding: 16px 24px;
  }

  .page-inner {
    padding: 24px 16px;
  }

  .welcome-title {
    font-size: 1.75rem;
  }

  .faucet-banner {
    flex-direction: column;
    text-align: center;
  }

  .faucet-banner-content {
    flex-direction: column;
  }

  .home-cards,
  .catalog-sections,
  .learn-grid,
  .ul-feature-grid,
  .startup-benefits {
    grid-template-columns: 1fr;
  }
}

/* Tablet adjustments */
@media (min-width: 601px) and (max-width: 1023px) {
  :root {
    --sidebar-width: 240px;
  }
}

/* Accessibility - Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  .ascii-logo {
    animation: none;
  }

  .signin-button,
  .sidebar {
    transition: none;
  }
}

/* =========================================
   SIGN-IN UI (issue #67 — Google sign-in)
   ========================================= */
#signin-container {
  width: 100%;
  max-width: 420px;
  margin: 16px auto 0;
  text-align: center;
}

.signin-error {
  color: #ff8a80; /* dark-theme friendly red */
  font-size: 0.9rem;
  margin-top: 8px;
  text-align: center;
}