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

:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #21262d;
  --border: #30363d;
  --text-primary: #f0f6fc;
  --text-secondary: #8b949e;
  --text-tertiary: #6e7681;
  --accent: #58a6ff;
  --accent-hover: #79c0ff;
  --accent-glow: rgba(88, 166, 255, 0.15);
  --green: #3fb950;
  --purple: #a371f7;
  --orange: #d29922;
  --red: #f85149;
  --radius: 14px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background:
    radial-gradient(ellipse 600px 600px at 20% 20%, rgba(88, 166, 255, 0.06) 0%, transparent 70%),
    radial-gradient(ellipse 400px 400px at 80% 80%, rgba(163, 113, 247, 0.05) 0%, transparent 70%),
    radial-gradient(ellipse 500px 300px at 50% 50%, rgba(63, 185, 80, 0.03) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ── Auth Bar ────────────────────────────────────────────────────────────── */
.auth-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  background: rgba(13, 17, 23, 0.85);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
}

.auth-bar-inner {
  width: 100%;
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.auth-bar-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.auth-bar-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.auth-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  object-fit: cover;
}

.auth-username {
  font-size: 12px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent);
}

.auth-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition);
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  border: none;
}

.auth-btn-login {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-primary);
}
.auth-btn-login:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.auth-sign-in-label {
  font-size: 11px;
  color: var(--text-tertiary);
  font-weight: 500;
  letter-spacing: 0.3px;
  margin-right: 2px;
}

/* Per-provider sign-in buttons */
.auth-btn-provider {
  padding: 5px 10px;
  font-size: 11px;
  font-weight: 600;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: 7px;
  gap: 5px;
}
.auth-btn-provider:hover { color: var(--text-primary); transform: translateY(-1px); }

.auth-btn-github:hover  { border-color: #58a6ff; color: #58a6ff; background: rgba(88,166,255,0.08); }
.auth-btn-gitlab:hover  { border-color: #fc6d26; color: #fc6d26; background: rgba(252,109,38,0.08); }
.auth-btn-bitbucket:hover { border-color: #2684FF; color: #2684FF; background: rgba(38,132,255,0.08); }
.auth-btn-linkedin:hover  { border-color: #0A66C2; color: #0A66C2; background: rgba(10,102,194,0.08); }

.auth-btn-logout {
  background: transparent;
  border: 1px solid rgba(248,81,73,0.4);
  color: var(--red);
}
.auth-btn-logout:hover {
  background: rgba(248,81,73,0.08);
}

/* ── Container ───────────────────────────────────────────────────────────── */
.container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 620px;
  padding: 40px 24px 60px;
}

/* ── Header ──────────────────────────────────────────────────────────────── */
.header { text-align: center; margin-bottom: 40px; }

.logo-icon {
  width: 80px; height: 80px;
  margin: 0 auto 20px;
  border-radius: 20px;
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 32px rgba(88,166,255,0.15), 0 0 60px rgba(88,166,255,0.06);
  animation: float 6s ease-in-out infinite;
}

.logo-icon img { width: 100%; height: 100%; object-fit: cover; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.header h1 {
  font-size: 32px; font-weight: 800; letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 10px; line-height: 1.2;
}

.header p { color: var(--text-secondary); font-size: 15px; font-weight: 400; line-height: 1.5; }
.header p span { color: var(--accent); font-weight: 500; }

/* ── Input Section ───────────────────────────────────────────────────────── */
.input-section {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 32px;
  transition: border-color var(--transition);
}

.input-section:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* ── Platform Switcher ───────────────────────────────────────────────────── */
.platform-switcher {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px;
  width: fit-content;
}

.platform-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 16px;
  border-radius: 7px;
  border: none;
  font-family: 'Inter', sans-serif;
  font-size: 12px; font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  background: transparent;
  color: var(--text-secondary);
}

.platform-btn:hover { color: var(--text-primary); }
.platform-btn.active {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(0,0,0,0.3);
}

/* ── Input Group ─────────────────────────────────────────────────────────── */
.input-group { display: flex; gap: 12px; align-items: stretch; }

.input-wrapper { flex: 1; position: relative; }

.input-prefix {
  position: absolute; left: 14px; top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  pointer-events: none; user-select: none;
  transition: color var(--transition);
}

#username-input {
  width: 100%;
  padding: 14px 14px 14px 110px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px; font-weight: 500;
  outline: none;
  transition: all var(--transition);
}
#username-input::placeholder { color: var(--text-tertiary); font-weight: 400; }
#username-input:focus { border-color: var(--accent); background: rgba(88,166,255,0.03); }

/* ── Generate Button ─────────────────────────────────────────────────────── */
#generate-btn {
  padding: 14px 24px;
  background: linear-gradient(135deg, #238636, #2ea043);
  border: 1px solid rgba(63,185,80,0.4);
  border-radius: 10px;
  color: #fff;
  font-family: 'Inter', sans-serif;
  font-size: 14px; font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  display: flex; align-items: center; gap: 8px;
  position: relative; overflow: hidden;
}
#generate-btn::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
  opacity: 0; transition: opacity var(--transition);
}
#generate-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(46,160,67,0.3);
}
#generate-btn:hover:not(:disabled)::before { opacity: 1; }
#generate-btn:active:not(:disabled) { transform: translateY(0); }
#generate-btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-icon { font-size: 16px; transition: transform var(--transition); }
#generate-btn:hover:not(:disabled) .btn-icon { transform: rotate(15deg) scale(1.1); }

/* ── Customize Panel ─────────────────────────────────────────────────────── */
.customize-toggle {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 16px;
  padding: 8px 12px;
  border-radius: 8px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  font-size: 12px; font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  user-select: none;
}
.customize-toggle:hover { border-color: var(--accent); color: var(--accent); }

.toggle-arrow { font-size: 10px; transition: transform var(--transition); }

.customize-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, opacity 0.3s ease, padding 0.3s ease;
  opacity: 0;
  padding: 0 0;
}
.customize-panel.open {
  max-height: 300px;
  opacity: 1;
  padding: 16px 0 0;
}

.customize-row { margin-bottom: 14px; }
.customize-label {
  font-size: 11px; text-transform: uppercase;
  letter-spacing: 1px; color: var(--text-tertiary);
  font-weight: 600; margin-bottom: 8px; display: block;
}

.theme-options, .layout-options {
  display: flex; flex-wrap: wrap; gap: 6px;
}

.theme-opt, .layout-opt {
  padding: 5px 12px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--bg-primary);
  color: var(--text-secondary);
  font-size: 11px; font-weight: 500;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  transition: all var(--transition);
}
.theme-opt:hover, .layout-opt:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.theme-opt.active, .layout-opt.active {
  background: var(--accent-glow);
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Loading State ───────────────────────────────────────────────────────── */
.skeleton-container { display: none; margin-bottom: 32px; }
.skeleton-container.active { display: block; animation: fadeIn 0.3s ease; }

.skeleton-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px; overflow: hidden;
}

.skeleton {
  background: linear-gradient(90deg, var(--bg-tertiary) 25%, rgba(255,255,255,0.06) 50%, var(--bg-tertiary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: 8px;
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-header { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.skeleton-avatar { width: 64px; height: 64px; border-radius: 50%; flex-shrink: 0; }
.skeleton-lines { flex: 1; }
.skeleton-line { height: 12px; margin-bottom: 8px; }
.skeleton-line:nth-child(1) { width: 60%; height: 16px; }
.skeleton-line:nth-child(2) { width: 40%; }
.skeleton-line:nth-child(3) { width: 30%; }
.skeleton-body { display: flex; flex-direction: column; gap: 12px; }
.skeleton-block { height: 48px; }
.skeleton-block-sm { height: 24px; width: 70%; }
.skeleton-stats { display: flex; gap: 12px; }
.skeleton-stat { flex: 1; height: 60px; border-radius: 10px; }

.loading-status {
  text-align: center; margin-top: 16px;
  color: var(--text-secondary); font-size: 13px;
  display: flex; align-items: center; justify-content: center; gap: 8px;
}

.loading-spinner {
  width: 16px; height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Result Area ─────────────────────────────────────────────────────────── */
.result-container { display: none; margin-bottom: 32px; }
.result-container.active { display: block; animation: fadeInUp 0.5s ease; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.result-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 12px; flex-wrap: wrap; gap: 8px;
}

.result-title {
  font-size: 14px; font-weight: 600; color: var(--green);
  display: flex; align-items: center; gap: 8px;
}

.result-actions { display: flex; gap: 6px; flex-wrap: wrap; }

.action-btn {
  padding: 7px 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-secondary);
  font-family: 'Inter', sans-serif;
  font-size: 12px; font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  display: flex; align-items: center; gap: 5px;
}
.action-btn:hover {
  border-color: var(--accent); color: var(--accent);
  background: var(--accent-glow);
}
.action-btn:disabled { opacity: 0.6; cursor: not-allowed; }
.action-btn.copied {
  border-color: var(--green); color: var(--green);
  background: rgba(63,185,80,0.1);
}

/* Analytics Badge */
.analytics-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  padding: 6px 12px;
  background: rgba(88,166,255,0.06);
  border: 1px solid rgba(88,166,255,0.2);
  border-radius: 20px;
  width: fit-content;
  font-size: 12px;
  color: var(--accent);
  font-weight: 500;
  animation: fadeIn 0.4s ease;
}

.card-frame {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px; overflow: hidden;
}
.card-frame iframe {
  width: 100%; min-height: 600px;
  border: none; border-radius: 12px;
  background: var(--bg-primary);
}

/* ── Error State ─────────────────────────────────────────────────────────── */
.error-container { display: none; margin-bottom: 32px; }
.error-container.active { display: block; animation: fadeIn 0.3s ease; }

.error-card {
  background: rgba(248,81,73,0.05);
  border: 1px solid rgba(248,81,73,0.3);
  border-radius: var(--radius);
  padding: 24px; text-align: center;
}
.error-icon { font-size: 40px; margin-bottom: 12px; }
.error-title { font-size: 16px; font-weight: 600; color: var(--red); margin-bottom: 8px; }
.error-message { font-size: 13px; color: var(--text-secondary); line-height: 1.5; }
.error-retry {
  margin-top: 16px; padding: 10px 20px;
  background: transparent;
  border: 1px solid var(--border); border-radius: 8px;
  color: var(--text-secondary);
  font-family: 'Inter', sans-serif; font-size: 13px; font-weight: 500;
  cursor: pointer; transition: all var(--transition);
}
.error-retry:hover { border-color: var(--accent); color: var(--accent); }

/* ── Footer ──────────────────────────────────────────────────────────────── */
.footer {
  text-align: center; padding: 32px 0;
  color: var(--text-tertiary); font-size: 12px;
  border-top: 1px solid rgba(48,54,61,0.5);
  margin-top: auto; width: 100%; max-width: 620px;
}
.footer a { color: var(--text-secondary); text-decoration: none; transition: color var(--transition); }
.footer a:hover { color: var(--accent); }

.tech-stack {
  margin-top: 8px;
  display: flex; justify-content: center; gap: 16px; flex-wrap: wrap;
}
.tech-badge {
  font-family: 'JetBrains Mono', monospace; font-size: 10px;
  padding: 3px 8px;
  background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: 4px; color: var(--text-tertiary); letter-spacing: 0.5px;
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 520px) {
  .container { padding: 24px 16px 40px; }
  .header h1 { font-size: 24px; }
  .input-group { flex-direction: column; }
  #generate-btn { justify-content: center; }
  .result-header { flex-direction: column; align-items: flex-start; }
  .result-actions { flex-wrap: wrap; }
  .auth-bar-inner { padding: 8px 16px; }
}