@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

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

:root {
  --bg-primary: #0d0d0d;
  --bg-secondary: #111111;
  --bg-card: #1a1a1a;
  --bg-card-hover: #222222;
  --bg-sidebar: #111111;
  --accent: #6c63ff;
  --accent-hover: #5a52e0;
  --teal: #00d4aa;
  --text-primary: #e0e0e0;
  --text-secondary: #999999;
  --text-muted: #666666;
  --border: #2a2a2a;
  --border-hover: #3a3a3a;
  --beginner: #00c853;
  --phone: #2196f3;
  --pro: #6c63ff;
  --sidebar-width: 260px;
  --navbar-height: 64px;
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.2s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: #333; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #444; }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-height);
  background: rgba(13, 13, 13, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  z-index: 1000;
  gap: 16px;
}

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

.navbar-logo {
  font-size: 22px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.5px;
}

.navbar-logo span {
  color: var(--teal);
}

.navbar-tagline {
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 400;
  border-left: 1px solid var(--border);
  padding-left: 16px;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  margin-left: auto;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

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

/* ===== SIDEBAR ===== */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  position: fixed;
  top: var(--navbar-height);
  left: 0;
  bottom: 0;
  overflow-y: auto;
  padding: 20px 12px;
  transition: transform 0.3s ease;
  z-index: 900;
}

.sidebar-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  padding: 0 12px;
  margin-bottom: 12px;
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  border: 1px solid transparent;
  margin-bottom: 2px;
}

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

.sidebar-item.active {
  background: rgba(108, 99, 255, 0.12);
  color: var(--accent);
  border-color: rgba(108, 99, 255, 0.3);
}

.sidebar-item .icon {
  font-size: 18px;
  width: 24px;
  text-align: center;
}

/* ===== MAIN CONTENT ===== */
.main {
  margin-left: var(--sidebar-width);
  flex: 1;
  padding: 32px;
  max-width: 100%;
}

/* ===== HERO ===== */
.hero {
  text-align: center;
  padding: 60px 20px 40px;
  max-width: 700px;
  margin: 0 auto 40px;
}

.hero-icon {
  font-size: 56px;
  margin-bottom: 16px;
  display: block;
}

.hero-title {
  font-size: 36px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.hero-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.hero-welcome {
  padding: 80px 20px 40px;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.hero-welcome h1 {
  font-size: 48px;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--teal) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-welcome p {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.hero-welcome .arrow {
  font-size: 14px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

/* ===== QUESTIONS GRID ===== */
.questions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.question-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 14px;
}

.question-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(108, 99, 255, 0.15);
}

.question-card .q-icon {
  font-size: 24px;
  width: 40px;
  height: 40px;
  background: rgba(108, 99, 255, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.question-card .q-text {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.4;
}

.question-card .q-arrow {
  margin-left: auto;
  color: var(--text-muted);
  font-size: 18px;
  flex-shrink: 0;
  transition: var(--transition);
}

.question-card:hover .q-arrow {
  color: var(--accent);
  transform: translateX(3px);
}

/* ===== RESULTS VIEW ===== */
.results-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.back-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.back-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.results-question {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
}

.tiers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ===== TIER COLUMN ===== */
.tier-column {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.tier-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 15px;
  border: 1px solid;
}

.tier-header.beginner {
  background: rgba(0, 200, 83, 0.08);
  border-color: rgba(0, 200, 83, 0.25);
  color: var(--beginner);
}

.tier-header.phone {
  background: rgba(33, 150, 243, 0.08);
  border-color: rgba(33, 150, 243, 0.25);
  color: var(--phone);
}

.tier-header.pro {
  background: rgba(108, 99, 255, 0.08);
  border-color: rgba(108, 99, 255, 0.25);
  color: var(--pro);
}

.tier-icon {
  font-size: 20px;
}

.tier-desc {
  font-size: 11px;
  font-weight: 400;
  opacity: 0.75;
  margin-left: auto;
}

/* ===== APP CARD ===== */
.app-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.app-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.app-card-body {
  padding: 16px;
  flex: 1;
}

.app-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.platform-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 10px;
}

.platform-badge {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 20px;
  letter-spacing: 0.3px;
}

.badge-windows { background: rgba(0, 120, 215, 0.2); color: #4fc3f7; border: 1px solid rgba(0, 120, 215, 0.3); }
.badge-mac { background: rgba(150, 150, 150, 0.15); color: #ccc; border: 1px solid rgba(150,150,150,0.3); }
.badge-linux { background: rgba(255, 168, 0, 0.15); color: #ffa800; border: 1px solid rgba(255,168,0,0.3); }
.badge-ios { background: rgba(0, 200, 150, 0.15); color: #00c896; border: 1px solid rgba(0,200,150,0.3); }
.badge-android { background: rgba(100, 220, 0, 0.15); color: #7ed321; border: 1px solid rgba(100,220,0,0.3); }
.badge-web { background: rgba(108, 99, 255, 0.15); color: #a89fff; border: 1px solid rgba(108,99,255,0.3); }

.app-description {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 12px;
}

.app-card-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  background: rgba(108, 99, 255, 0.15);
  border: 1px solid rgba(108, 99, 255, 0.35);
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
}

.download-btn:hover {
  background: rgba(108, 99, 255, 0.25);
  border-color: var(--accent);
  color: #fff;
}

/* ===== YOUTUBE ===== */
.yt-embed {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  height: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: #000;
}

.yt-embed iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.yt-placeholder {
  background: rgba(255, 255, 255, 0.04);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

/* ===== OVERLAY ===== */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 850;
}

/* ===== EMPTY STATE ===== */
.empty-state {
  padding: 60px 20px;
  text-align: center;
}

.empty-state .emoji {
  font-size: 48px;
  margin-bottom: 16px;
  display: block;
}

.empty-state p {
  color: var(--text-secondary);
  font-size: 16px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1100px) {
  .tiers-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

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

  .main {
    margin-left: 0;
    padding: 20px 16px;
  }

  .navbar-tagline {
    display: none;
  }

  .hero-welcome h1 {
    font-size: 32px;
  }

  .results-question {
    font-size: 17px;
  }

  .tiers-grid {
    grid-template-columns: 1fr;
  }

  .questions-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 30px 10px 20px;
  }

  .hero-title {
    font-size: 26px;
  }
}

/* ===== FADE IN ANIMATION ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeInUp 0.25s ease forwards;
}

.fade-in-delay-1 { animation-delay: 0.05s; opacity: 0; }
.fade-in-delay-2 { animation-delay: 0.10s; opacity: 0; }
.fade-in-delay-3 { animation-delay: 0.15s; opacity: 0; }

/* ===== AI SEARCH BAR ===== */
.ai-search-box {
  position: fixed;
  bottom: 0;
  left: var(--sidebar-width);
  right: 0;
  background: rgba(17, 17, 17, 0.95);
  border-top: 1px solid var(--border);
  backdrop-filter: blur(12px);
  z-index: 100;
  padding: 12px 24px 16px;
}

.ai-search-inner {
  max-width: 800px;
  margin: 0 auto;
}

.ai-search-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.ai-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.ai-status {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 20px;
  font-weight: 500;
  cursor: default;
}

.ai-status.dormant {
  background: #2a2a2a;
  color: var(--text-muted);
}

.ai-status.loading {
  background: rgba(108, 99, 255, 0.15);
  color: var(--accent);
  animation: pulse 1.5s ease-in-out infinite;
}

.ai-status.ready {
  background: rgba(0, 200, 83, 0.15);
  color: var(--beginner);
}

.ai-status.error {
  background: rgba(255, 80, 80, 0.15);
  color: #ff5050;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}


.ai-search-row {
  display: flex;
  gap: 8px;
}

.ai-input {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  padding: 10px 14px;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
}

.ai-input:not(:disabled):focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.15);
}

.ai-input:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.ai-input::placeholder {
  color: var(--text-muted);
}

.ai-submit {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  width: 44px;
  font-size: 18px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.ai-submit:hover:not(:disabled) {
  background: var(--accent-hover);
}

.ai-submit:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.ai-result {
  margin-top: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  padding: 6px 10px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
}

/* Push main content up so it doesn't hide behind the AI bar */
.main {
  padding-bottom: 110px;
}

/* Mobile: AI bar spans full width */
@media (max-width: 768px) {
  .ai-search-box {
    left: 0;
  }
}




/* ===== CHAT VIEW ===== */
.chat-view {
  display: flex;
  flex-direction: column;
  height: calc(100vh - var(--navbar-height));
  overflow: hidden;
}

.chat-back-row {
  flex-shrink: 0;
  padding: 12px 20px 0;
}

.chat-back-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-family: inherit;
  transition: var(--transition);
}
.chat-back-btn:hover { color: var(--text-primary); background: var(--bg-card); }

.chat-thread {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px 8px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* User bubble */
.chat-user-msg {
  align-self: flex-end;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  padding: 10px 16px;
  border-radius: 18px 18px 4px 18px;
  max-width: 80%;
  line-height: 1.4;
}

/* AI response block */
.chat-ai-msg {
  align-self: flex-start;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chat-ai-text {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px 18px 18px 18px;
  padding: 12px 16px;
  max-width: 85%;
}
.chat-muted { color: var(--text-secondary); }

/* Tier groups */
.chat-tiers { display: flex; flex-direction: column; gap: 14px; }

.chat-tier-group { display: flex; flex-direction: column; gap: 6px; }

.chat-tier-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.7px;
  color: var(--text-secondary);
  padding-left: 2px;
}
.chat-tier-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin: 4px 0 6px;
  padding-left: 2px;
}

/* Minimal card */
.chat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  overflow: hidden;
  outline: none;
}
.chat-card:hover { border-color: var(--border-hover); background: var(--bg-card-hover); }
.chat-card:focus-visible { border-color: var(--accent); }

.chat-card-face {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 14px;
}

.chat-card-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  flex-shrink: 0;
}

.chat-card-platforms {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  flex: 1;
}

.chat-badge {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 20px;
  background: rgba(108,99,255,0.08);
  border: 1px solid rgba(108,99,255,0.2);
  color: var(--accent);
}

.chat-card-chevron {
  font-size: 18px;
  color: var(--text-muted);
  transition: transform 0.2s;
  line-height: 1;
  margin-left: auto;
}

/* Expanded card */
.chat-card-details {
  display: none;
  padding: 0 14px 14px;
  border-top: 1px solid var(--border);
}
.chat-card.expanded .chat-card-details { display: block; }
.chat-card.expanded .chat-card-chevron { transform: rotate(90deg); }
.chat-card.expanded { border-color: var(--accent); }

.chat-card-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.55;
  margin: 10px 0 10px;
}

.chat-card-links { display: flex; gap: 8px; flex-wrap: wrap; }

.chat-link {
  display: inline-block;
  padding: 7px 13px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
}
.chat-link-dl {
  background: rgba(108,99,255,0.12);
  border: 1px solid rgba(108,99,255,0.3);
  color: var(--accent);
}
.chat-link-dl:hover { background: rgba(108,99,255,0.22); }
.chat-link-yt {
  background: rgba(255,82,82,0.08);
  border: 1px solid rgba(255,82,82,0.3);
  color: #ff5252;
}
.chat-link-yt:hover { background: rgba(255,82,82,0.18); }

/* Follow-up input bar */
.chat-input-row {
  flex-shrink: 0;
  display: flex;
  gap: 8px;
  padding: 12px 20px 16px;
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}

.chat-followup-input {
  flex: 1;
  padding: 11px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}
.chat-followup-input:focus { border-color: var(--accent); }

.chat-followup-btn {
  padding: 11px 18px;
  background: var(--accent);
  border: none;
  border-radius: 10px;
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s;
  font-family: inherit;
}
.chat-followup-btn:hover { background: var(--accent-hover); }

/* Toast */
.ai-toast {
  position: fixed;
  bottom: 90px;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 13px;
  padding: 10px 18px;
  border-radius: 24px;
  z-index: 500;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  white-space: nowrap;
  max-width: 90vw;
  text-align: center;
}
.ai-toast.visible { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (max-width: 768px) {
  .chat-user-msg, .chat-ai-text { max-width: 95%; }
}

/* Typing indicator */
.chat-dots span {
  animation: chatBlink 1.2s infinite;
  opacity: 0;
}
.chat-dots span:nth-child(2) { animation-delay: 0.2s; }
.chat-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes chatBlink {
  0%, 80%, 100% { opacity: 0; }
  40% { opacity: 1; }
}