/* ===== Postica - Light Premium Theme ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #ec4899;
  --primary-light: #fdf2f8;
  --primary-hover: #db2777;
  --primary-glow: rgba(236, 72, 153, 0.18);
  --accent: #c084fc;
  --text: #4a1d3f;
  --text-secondary: #7c5466;
  --text-muted: #b58aa3;
  --bg-body: #fff5f9;
  --bg-card: #ffffff;
  --bg-card-hover: #fef6fa;
  --bg-input: #ffffff;
  --bg-section: #fce7f3;
  --border: #fce7f3;
  --border-hover: #fbcfe8;
  --border-focus: rgba(236, 72, 153, 0.45);
  --success: #059669;
  --success-light: #ecfdf5;
  --error: #dc2626;
  --error-light: #fef2f2;
  --warning: #d97706;
  --warning-light: #fffbeb;
  --purple: #7c3aed;
  --purple-light: #f5f3ff;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.08);
  --transition: 0.15s ease;
}

body {
  font-family: 'Pretendard Variable', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji', sans-serif;
  background: var(--bg-body);
  min-height: 100vh;
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ===== Top Nav ===== */
.top-nav {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 54px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}
.top-nav-brand {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--primary);
  text-decoration: none;
}
.top-nav-links { display: flex; gap: 2px; align-items: center; }
.top-nav-link {
  font-size: 0.78rem;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 7px 14px;
  border-radius: 8px;
  transition: all var(--transition);
  font-weight: 500;
}
.top-nav-link:hover { background: var(--bg-section); color: var(--text); }
.top-nav-link.active { background: var(--primary-light); color: var(--primary); font-weight: 600; }
.top-nav-btn {
  font-size: 0.75rem;
  padding: 6px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text-muted);
  cursor: pointer;
  font-family: inherit;
  transition: all var(--transition);
}
.top-nav-btn:hover { border-color: var(--error); color: var(--error); background: var(--error-light); }

/* ===== Page Container ===== */
.page { max-width: 800px; margin: 0 auto; padding: 28px 16px; }
.page-sm { max-width: 440px; }

/* ===== Cards ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition);
}
.card:hover { box-shadow: var(--shadow-lg); }
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.card-title { font-size: 1rem; font-weight: 700; color: var(--text); }
.card-desc { font-size: 0.78rem; color: var(--text-muted); margin-top: 2px; }

/* ===== Tabs ===== */
.tabs {
  display: flex; gap: 2px; border-bottom: 2px solid var(--border);
  margin-bottom: 24px; overflow-x: auto; scrollbar-width: none;
  background: var(--bg-card); border-radius: 12px 12px 0 0; padding: 0 8px;
  box-shadow: var(--shadow-sm);
}
.tabs::-webkit-scrollbar { display: none; }
.tab {
  padding: 14px 18px; font-size: 0.8rem; font-weight: 500;
  color: var(--text-muted); border: none; background: none;
  cursor: pointer; font-family: inherit;
  border-bottom: 2px solid transparent;
  white-space: nowrap; transition: all var(--transition);
  margin-bottom: -2px;
}
.tab:hover { color: var(--text-secondary); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeIn 0.2s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

/* ===== Form Elements ===== */
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; min-width: 0; }
.form-label { font-size: 0.82rem; font-weight: 600; color: var(--text); }
.form-sublabel { font-size: 0.7rem; color: var(--text-muted); }
.form-input, .form-select {
  padding: 10px 14px; border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  font-size: 0.85rem; outline: none; font-family: inherit;
  background: var(--bg-input); color: var(--text); transition: all var(--transition);
  width: 100%; min-width: 0; box-sizing: border-box;
}
.form-input::placeholder { color: var(--text-muted); }
.form-input:focus, .form-select:focus {
  border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-glow);
}
.form-input:disabled { opacity: 0.5; cursor: not-allowed; background: var(--bg-section); }
.form-textarea {
  padding: 10px 14px; border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  font-size: 0.85rem; outline: none; font-family: inherit;
  resize: vertical; min-height: 72px; line-height: 1.6;
  background: var(--bg-input); color: var(--text); transition: all var(--transition);
  width: 100%; min-width: 0; box-sizing: border-box;
}
.form-textarea::placeholder { color: var(--text-muted); }
.form-textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-glow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-hint { font-size: 0.7rem; color: var(--text-muted); }
.form-error { font-size: 0.72rem; color: var(--error); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 20px; border-radius: var(--radius-sm); font-size: 0.85rem; font-weight: 600;
  cursor: pointer; font-family: inherit; border: none; transition: all var(--transition);
}
.btn-primary {
  background: linear-gradient(135deg, #6366f1, #8b5cf6); color: #fff;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.25);
}
.btn-primary:hover { box-shadow: 0 4px 16px rgba(99, 102, 241, 0.35); transform: translateY(-1px); }
.btn-outline { background: #fff; color: var(--text-secondary); border: 1.5px solid var(--border); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }
.btn-sm { padding: 6px 14px; font-size: 0.75rem; }
.btn-block { width: 100%; }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--error); color: #fff; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

/* ===== Social Buttons ===== */
.social-btns { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.social-btn {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  width: 100%; padding: 12px; border-radius: var(--radius-sm); font-size: 0.83rem;
  font-weight: 600; cursor: pointer; font-family: inherit; border: 1.5px solid var(--border);
  transition: all var(--transition); background: #fff; color: var(--text);
}
.social-btn:hover { box-shadow: var(--shadow); }
.social-btn.kakao { background: #FEE500; color: #191919; border-color: #FEE500; }
.social-btn.kakao:hover { box-shadow: 0 2px 8px rgba(254,229,0,0.4); }
.social-btn.naver { background: #03C75A; color: #fff; border-color: #03C75A; }
.social-btn.naver:hover { box-shadow: 0 2px 8px rgba(3,199,90,0.4); }
.social-btn.google { background: #fff; color: #333; }
.social-btn.google:hover { box-shadow: var(--shadow-lg); }

/* ===== Divider ===== */
.divider { display: flex; align-items: center; gap: 12px; margin: 20px 0; }
.divider::before, .divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.divider span { font-size: 0.72rem; color: var(--text-muted); }

/* ===== Badges ===== */
.badge {
  display: inline-block; font-size: 0.65rem; font-weight: 600; padding: 3px 9px;
  border-radius: 5px; vertical-align: middle;
}
.badge-primary { background: var(--primary-light); color: var(--primary); }
.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-error { background: var(--error-light); color: var(--error); }
.badge-purple { background: var(--purple-light); color: var(--purple); }

/* ===== Stat Cards ===== */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
.stat-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; text-align: center; box-shadow: var(--shadow-sm);
}
.stat-value { font-size: 1.6rem; font-weight: 800; color: var(--primary); }
.stat-label { font-size: 0.72rem; color: var(--text-muted); margin-top: 4px; }

/* ===== Table ===== */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.8rem; }
th {
  font-weight: 600; color: var(--text-muted); text-align: left; padding: 12px;
  border-bottom: 2px solid var(--border); white-space: nowrap; font-size: 0.72rem;
  text-transform: uppercase; letter-spacing: 0.04em; background: var(--bg-section);
}
td { padding: 12px; border-bottom: 1px solid var(--border); color: var(--text-secondary); }
tr:hover td { background: var(--primary-light); }

/* ===== Tree ===== */
.tree { padding-left: 0; list-style: none; }
.tree ul { padding-left: 24px; list-style: none; border-left: 2px solid var(--border); margin-left: 14px; }
.tree li { padding: 6px 0; }
.tree-node {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px;
  font-size: 0.78rem; box-shadow: var(--shadow-sm); transition: all var(--transition);
}
.tree-node:hover { box-shadow: var(--shadow); border-color: var(--primary); }
.tree-node-name { font-weight: 600; color: var(--text); }
.tree-node-info { color: var(--text-muted); font-size: 0.7rem; }

/* ===== Info Row ===== */
.info-row { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--border); }
.info-row:last-child { border-bottom: none; }
.info-label { font-size: 0.8rem; color: var(--text-muted); }
.info-value { font-size: 0.85rem; font-weight: 600; color: var(--text); text-align: right; }

/* ===== Copy ===== */
.copy-wrap { display: flex; align-items: center; gap: 8px; }
.copy-input {
  flex: 1; padding: 10px 14px; border: 1.5px solid var(--border); border-radius: 8px;
  font-size: 0.78rem; background: var(--bg-section); font-family: monospace; color: var(--text);
}
.copy-btn {
  padding: 10px 16px; background: linear-gradient(135deg, #6366f1, #8b5cf6); color: #fff;
  border: none; border-radius: 8px; font-size: 0.75rem; cursor: pointer; font-weight: 600;
  font-family: inherit; white-space: nowrap;
}
.copy-btn:hover { box-shadow: 0 2px 8px rgba(99,102,241,0.3); }

/* ===== Toast ===== */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--text); color: #fff;
  padding: 12px 28px; border-radius: 12px; font-size: 0.82rem; z-index: 9999;
  animation: toastIn 0.3s ease; box-shadow: var(--shadow-lg);
}
@keyframes toastIn { from { opacity: 0; transform: translateX(-50%) translateY(10px); } to { opacity: 1; transform: translateX(-50%) translateY(0); } }

/* ===== SNS 계정 블록 ===== */
.sns-block {
  padding: 18px;
  border: 1px solid rgba(99, 102, 241, 0.12);
  border-radius: 14px;
  background: linear-gradient(135deg, #fafbff, #ffffff);
  margin-bottom: 14px;
}
.sns-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.sns-platform {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.01em;
}
.sns-status {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
  background: #f1f5f9;
  color: #94a3b8;
}
.sns-status.connected {
  background: linear-gradient(135deg, #dcfce7, #bbf7d0);
  color: #15803d;
}
.input-with-toggle {
  position: relative;
}
.input-with-toggle .form-input {
  padding-right: 56px;
}
.toggle-visibility {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  background: #f1f5f9;
  border: none;
  color: #64748b;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s;
}
.toggle-visibility:hover { background: #e2e8f0; }
.field-hint {
  font-size: 0.68rem;
  color: #94a3b8;
  font-weight: 500;
  margin-left: 6px;
}
.sns-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}
.test-result {
  font-size: 0.75rem;
  color: #64748b;
}
.test-result.ok { color: #15803d; font-weight: 600; }
.test-result.err { color: #dc2626; font-weight: 600; }
.save-indicator {
  font-size: 0.72rem;
  font-weight: 600;
  color: #94a3b8;
  padding: 4px 10px;
  border-radius: 10px;
  background: #f1f5f9;
  transition: all 0.2s;
}
.save-indicator.saved {
  color: #15803d;
  background: #dcfce7;
}

/* ===== Loading Spinner ===== */
.spinner {
  display: flex; align-items: center; justify-content: center;
  padding: 40px 20px; color: var(--text-muted); font-size: 0.85rem; gap: 10px;
}
.spinner::before {
  content: ''; width: 20px; height: 20px;
  border: 2.5px solid var(--border); border-top-color: var(--primary);
  border-radius: 50%; animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.spinner-sm::before { width: 14px; height: 14px; border-width: 2px; }
.spinner-inline { display: inline-flex; padding: 0; gap: 6px; font-size: 0.78rem; }

/* ===== Empty State ===== */
.empty-state {
  text-align: center; padding: 48px 20px; color: var(--text-muted);
}
.empty-state-icon { font-size: 2.5rem; margin-bottom: 12px; opacity: 0.5; }
.empty-state-title { font-size: 0.95rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 6px; }
.empty-state-desc { font-size: 0.82rem; line-height: 1.6; }

/* ===== Error State ===== */
.error-state {
  text-align: center; padding: 32px 20px;
  background: var(--error-light); border: 1px solid rgba(220,38,38,0.15);
  border-radius: var(--radius); color: var(--error);
}
.error-state-title { font-size: 0.9rem; font-weight: 600; margin-bottom: 4px; }
.error-state-desc { font-size: 0.78rem; opacity: 0.8; }
.error-state-retry {
  margin-top: 12px; padding: 8px 18px; border: 1px solid var(--error);
  background: transparent; color: var(--error); border-radius: var(--radius-sm);
  font-size: 0.78rem; cursor: pointer; font-family: inherit;
}
.error-state-retry:hover { background: var(--error); color: #fff; }

/* ===== Responsive ===== */

/* Tablet */
@media (max-width: 768px) {
  .top-nav { padding: 0 12px; height: 48px; }
  .top-nav-brand { font-size: 0.88rem; }
  .top-nav-link { padding: 6px 10px; font-size: 0.72rem; }
  .top-nav-btn { font-size: 0.7rem; padding: 5px 10px; }
  .page { padding: 20px 14px; }
  .card { padding: 20px 16px; border-radius: 12px; }
  .card-title { font-size: 0.92rem; }
  .tabs { padding: 0 4px; }
  .tab { padding: 12px 12px; font-size: 0.75rem; }
  .form-row { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-card { padding: 14px 12px; }
  .btn { padding: 10px 18px; font-size: 0.82rem; min-height: 44px; }
  .social-btn { min-height: 44px; }
  .form-input, .form-select { padding: 11px 12px; font-size: 0.88rem; min-height: 44px; }
}

/* Mobile */
@media (max-width: 480px) {
  .top-nav { padding: 0 10px; height: 44px; }
  .top-nav-brand { font-size: 0.82rem; }
  .top-nav-links { gap: 0; }
  .top-nav-link { padding: 5px 7px; font-size: 0.68rem; }
  .top-nav-btn { font-size: 0.68rem; padding: 4px 8px; }
  .page { padding: 16px 12px; }
  .page-sm { max-width: 100%; }
  .card { padding: 16px 14px; margin-bottom: 12px; border-radius: 10px; }
  .card-header { flex-wrap: wrap; gap: 8px; }
  .card-title { font-size: 0.88rem; }
  .tabs { gap: 0; border-radius: 8px 8px 0 0; }
  .tab { padding: 10px 8px; font-size: 0.7rem; }
  .form-group { margin-bottom: 12px; }
  .form-label { font-size: 0.78rem; }
  .form-input, .form-select { padding: 10px; font-size: 0.85rem; }
  .form-row { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .stat-card { padding: 12px 10px; }
  .stat-value { font-size: 1.1rem; }
  .stat-label { font-size: 0.65rem; }
  .btn { padding: 10px 14px; font-size: 0.8rem; }
  .btn-block { width: 100%; }
  .social-btns { gap: 8px; }
  .social-btn { font-size: 0.8rem; padding: 10px 14px; }
  .divider { margin: 16px 0; }
  .modal-body { width: 95%; max-width: 95%; padding: 20px 16px; border-radius: 12px; }
  .badge { font-size: 0.6rem; padding: 2px 6px; }
}