:root {
  --bg: #0a0a0a;
  --surface: #141414;
  --card: #1a1a1a;
  --border: #2a2a2a;
  --text: #e0e0e0;
  --text-muted: #888;
  --accent: #7cb3ff;
  --accent-hover: #9dc5ff;
  --error: #ff6b6b;
  --radius: 8px;
}

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

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.logo {
  font-size: 1.4rem;
  color: var(--text);
  letter-spacing: -0.02em;
}

.dot { color: var(--accent); }

.kiln-logo {
  font-family: system-ui, -apple-system, sans-serif;
  font-weight: 800;
  letter-spacing: -0.04em;
  text-transform: lowercase;
  position: relative;
  display: inline-block;
  background: linear-gradient(
    180deg,
    #fff 0%,
    #ffcba4 30%,
    #ff6b35 60%,
    #d32f2f 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 20px rgba(255, 107, 53, 0.4))
         drop-shadow(0 0 60px rgba(211, 47, 47, 0.2));
  animation: kiln-breathe 4s ease-in-out infinite;
}

@keyframes kiln-breathe {
  0%, 100% { filter: drop-shadow(0 0 20px rgba(255, 107, 53, 0.4)) drop-shadow(0 0 60px rgba(211, 47, 47, 0.2)); }
  50% { filter: drop-shadow(0 0 30px rgba(255, 107, 53, 0.6)) drop-shadow(0 0 80px rgba(211, 47, 47, 0.35)); }
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.user-name { color: var(--text-muted); font-size: 0.9rem; }

.btn-logout {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.15s;
}

.btn-logout:hover {
  color: var(--text);
  border-color: #444;
}

/* Main */
main {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
}

section { margin-bottom: 2.5rem; }

h2 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

/* Project Cards */
.project-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 0.75rem;
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.project-header h3 {
  font-size: 1.1rem;
  font-weight: 600;
}

.btn-draft {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.85rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.15s;
}

.btn-draft:hover {
  background: rgba(124, 179, 255, 0.1);
  border-color: var(--accent);
}

.version-count {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.versions-list { display: flex; flex-direction: column; gap: 0.5rem; }

.version {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
}

.version-tag {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.8rem;
  color: var(--accent);
  background: rgba(124, 179, 255, 0.1);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  flex-shrink: 0;
}

.version-label { color: var(--text); }
.version-meta { color: var(--text-muted); flex: 1; }

.btn-sm {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.8rem;
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  transition: all 0.15s;
  flex-shrink: 0;
}

.btn-sm:hover {
  background: rgba(124, 179, 255, 0.1);
  border-color: var(--accent);
}

/* Empty states */
.empty {
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 1rem 0;
}

.empty code {
  background: var(--card);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.85rem;
}

/* Login */
.login-page {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.login-box {
  text-align: center;
  padding: 3rem;
}

.login-box h1 {
  font-size: 5rem;
  margin-bottom: 1.5rem;
}

.login-box {
  position: relative;
}

.login-box::before {
  content: '';
  position: absolute;
  top: -40px;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.15) 0%, rgba(211, 47, 47, 0.05) 50%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  animation: kiln-glow 4s ease-in-out infinite;
}

@keyframes kiln-glow {
  0%, 100% { opacity: 0.6; transform: translateX(-50%) scale(1); }
  50% { opacity: 1; transform: translateX(-50%) scale(1.15); }
}

.login-box p {
  color: var(--text-muted);
  font-size: 1rem;
}

.error {
  color: var(--error);
  margin-top: 1rem;
  font-size: 0.9rem;
}

/* Toasts */
#toast-container {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 500;
  color: #fff;
  backdrop-filter: blur(12px);
  opacity: 0;
  transform: translateX(40px);
  transition: all 0.3s ease;
  pointer-events: auto;
  max-width: 400px;
  border: 1px solid rgba(255,255,255,0.08);
}

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

.toast-info {
  background: rgba(124, 179, 255, 0.15);
  border-color: rgba(124, 179, 255, 0.3);
  color: var(--accent);
}

.toast-success {
  background: rgba(255, 107, 53, 0.15);
  border-color: rgba(255, 107, 53, 0.3);
  color: #ff9b6a;
}

.toast-share {
  background: rgba(167, 139, 250, 0.15);
  border-color: rgba(167, 139, 250, 0.3);
  color: #a78bfa;
}

/* Responsive */
@media (max-width: 640px) {
  header { padding: 0.75rem 1rem; }
  main { padding: 1rem; }
  .project-header { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
  .version { flex-wrap: wrap; }
  #toast-container { left: 1rem; right: 1rem; }
  .toast { max-width: none; }
}