/* === RESET & VARS === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #f5f5f7;
  --surface:     #ffffff;
  --surface-2:   #f3f4f6;
  --border:      #e5e7eb;
  --accent:      #7c3aed;
  --accent-lt:   #6d28d9;
  --accent-dim:  rgba(124,58,237,.10);
  --text:        #111827;
  --muted:       #6b7280;
  --danger:      #dc2626;
  --danger-dim:  rgba(220,38,38,.08);
  --success:     #16a34a;
  --success-dim: rgba(22,163,74,.08);
  --r:           10px;
  --r-sm:        6px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--accent-lt); text-decoration: none; }
a:hover { text-decoration: underline; }

/* === NAV === */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 56px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-logo {
  font-size: 20px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.5px;
}
.nav-logo:hover { text-decoration: none; }
.nav-right { display: flex; align-items: center; gap: 10px; }
.nav-username { color: var(--muted); font-size: 14px; }

/* === LAYOUT === */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 20px 60px;
}

/* === CARD === */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 24px;
}
.card-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}

/* === FORMS === */
.form-group { margin-bottom: 14px; }
.mb-0 { margin-bottom: 0 !important; }

label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 5px;
  font-weight: 500;
}

input[type="text"],
input[type="password"],
input[type="url"],
select,
textarea {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 12px;
  border-radius: var(--r-sm);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color .15s;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
input::placeholder { color: #9ca3af; }
select { cursor: pointer; }
textarea { resize: vertical; min-height: 80px; }

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: var(--r-sm);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: background .15s, opacity .15s;
  text-decoration: none;
  line-height: 1;
}
.btn:hover { text-decoration: none; }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-full { width: 100%; justify-content: center; }

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-lt); }

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }

.btn-danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid rgba(220,38,38,.3);
}
.btn-danger:hover { background: var(--danger-dim); }

/* === ALERTS === */
.alert {
  padding: 12px 16px;
  border-radius: var(--r-sm);
  margin-bottom: 16px;
  font-size: 14px;
}
.alert-error   { background: var(--danger-dim);  color: #991b1b; border: 1px solid rgba(220,38,38,.2); }
.alert-success { background: var(--success-dim); color: #14532d; border: 1px solid rgba(22,163,74,.2); }

/* === TABLE === */
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th {
  text-align: left;
  padding: 10px 14px;
  color: var(--muted);
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .04em;
  border-bottom: 1px solid var(--border);
}
.table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: rgba(124,58,237,.04); }

/* === BADGES === */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: 12px;
  font-weight: 500;
}
.badge-purple { background: var(--accent-dim); color: var(--accent); }
.badge-green  { background: var(--success-dim); color: #166534; }
.badge-gray   { background: rgba(107,114,128,.12); color: var(--muted); }

/* === CODE BADGE === */
.code-badge {
  font-family: 'SF Mono', Monaco, 'Courier New', monospace;
  font-size: 12px;
  background: var(--accent-dim);
  color: var(--accent);
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid rgba(124,58,237,.2);
}

/* === COPY BUTTON === */
.copy-btn {
  padding: 3px 8px;
  font-size: 12px;
  cursor: pointer;
  background: var(--accent-dim);
  border: 1px solid rgba(124,58,237,.3);
  color: var(--accent);
  border-radius: 4px;
  transition: background .15s;
  white-space: nowrap;
}
.copy-btn:hover { background: var(--accent); color: #fff; }
.copy-btn.copied { background: var(--success-dim); border-color: rgba(22,163,74,.3); color: #166534; }

/* === AUTH PAGES === */
.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}
.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 40px;
}
.auth-logo {
  text-align: center;
  font-size: 32px;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 6px;
  letter-spacing: -1px;
}
.auth-subtitle {
  text-align: center;
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 28px;
}
.auth-footer {
  text-align: center;
  font-size: 13px;
  color: var(--muted);
  margin-top: 20px;
}
.auth-note {
  text-align: center;
  font-size: 12px;
  color: var(--muted);
  margin-top: 12px;
  opacity: .7;
}

/* === PENDING PAGE === */
.pending-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  text-align: center;
  padding: 20px;
}
.pending-icon  { font-size: 52px; margin-bottom: 16px; }
.pending-title { font-size: 22px; font-weight: 700; margin-bottom: 8px; }
.pending-text  { color: var(--muted); margin-bottom: 24px; max-width: 320px; }

/* === DASHBOARD LAYOUT === */
.section-gap { margin-bottom: 44px; }
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.section-title { font-size: 18px; font-weight: 600; }

.empty-state {
  text-align: center;
  color: var(--muted);
  padding: 32px;
  font-size: 14px;
}

.create-link-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr auto;
  gap: 12px;
  align-items: end;
}
.create-tree-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
}

.url-cell {
  font-size: 12px;
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* === SLINKTREE CARDS (dashboard) === */
.stree-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.stree-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 20px;
  display: flex;
  flex-direction: column;
}
.stree-card-title { font-weight: 600; font-size: 16px; margin-bottom: 3px; }
.stree-card-slug  { color: var(--muted); font-size: 13px; margin-bottom: 10px; }
.stree-card-meta  { margin-bottom: 12px; }
.stree-pub-url {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  overflow: hidden;
}
.stree-card-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* === PUBLIC SLINKTREE === */
.stree-page {
  min-height: 100vh;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 60px 20px 48px;
}
.stree-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #4338ca);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  flex-shrink: 0;
}
.stree-username { color: var(--muted); font-size: 14px; margin-bottom: 4px; }
.stree-title    { font-size: 26px; font-weight: 700; margin-bottom: 8px; text-align: center; }
.stree-desc     { color: var(--muted); text-align: center; max-width: 400px; font-size: 14px; margin-bottom: 36px; }
.stree-links    { width: 100%; max-width: 500px; display: flex; flex-direction: column; gap: 12px; }
.stree-link-btn {
  display: block;
  width: 100%;
  padding: 16px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  color: var(--text);
  text-align: center;
  font-size: 15px;
  font-weight: 500;
  transition: background .15s, border-color .15s, transform .1s;
}
.stree-link-btn:hover {
  background: var(--surface-2);
  border-color: var(--accent);
  transform: translateY(-2px);
  text-decoration: none;
}
.stree-empty  { color: var(--muted); text-align: center; padding: 32px; }
.stree-footer { margin-top: 52px; color: var(--muted); font-size: 13px; }
.stree-footer a { color: var(--muted); }

/* === UTILS === */
.flex        { display: flex; }
.flex-gap    { gap: 8px; }
.align-center{ align-items: center; }
.text-muted  { color: var(--muted); font-size: 13px; }

/* === SCROLLBAR === */
::-webkit-scrollbar             { width: 5px; height: 5px; }
::-webkit-scrollbar-track       { background: var(--bg); }
::-webkit-scrollbar-thumb       { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

/* === RESPONSIVE === */
@media (max-width: 640px) {
  .create-link-row { grid-template-columns: 1fr; }
  .create-tree-row { grid-template-columns: 1fr; }
  .stree-grid      { grid-template-columns: 1fr; }
  .nav             { padding: 0 14px; }
  .container       { padding: 20px 14px 48px; }
  .auth-card       { padding: 28px 20px; }
}