/* ========== Reset & Base ========== */
* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* 쑥(SSUK) — forest green palette (앱 아이콘 기준) */
  --header-grad-from: #14532D;
  --header-grad-to: #0A1F0E;
  --accent: #16A34A;
  --accent-dark: #15803D;
  --accent-light: #DCFCE7;
  --accent-bright: #4ADE80;
  --danger: #DC2626;
  --danger-light: #FEE2E2;
  --warning: #F59E0B;
  --warning-light: #FEF3C7;
  --info: #2563EB;
  --info-light: #DBEAFE;
  --bg: #F7FAF7;
  --card-bg: #FFFFFF;
  --border: #E5E7EB;
  --border-strong: #D1D5DB;
  --text: #052E16;
  --text-muted: #4B5563;
  --text-light: #9CA3AF;
  --shadow: 0 1px 3px rgba(10,31,14,0.08), 0 1px 2px rgba(10,31,14,0.04);
  --shadow-lg: 0 10px 25px rgba(10,31,14,0.12), 0 4px 10px rgba(10,31,14,0.06);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", "맑은 고딕", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 15px;
  min-height: 100vh;
}

button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: inherit; }
a { color: var(--accent-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ========== Header ========== */
.app-header {
  background: linear-gradient(135deg, var(--header-grad-from) 0%, var(--header-grad-to) 100%);
  color: white;
  padding: 18px 0;
  box-shadow: var(--shadow);
}
.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 14px; }
.logo-img {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(255,255,255,0.06);
  display: block;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.brand-text h1 { font-size: 22px; margin-bottom: 2px; letter-spacing: -0.5px; }
.brand-text p { font-size: 13px; opacity: 0.9; color: #86EFAC; }
.header-right { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.header-actions { display: flex; gap: 8px; }
.header-credit { font-size: 11px; opacity: 0.65; font-style: italic; font-family: Georgia, serif; }

/* ========== Tab Nav ========== */
.tab-nav {
  background: white;
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 50;
}
.tab-nav-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  gap: 4px;
}
.tab-btn {
  padding: 14px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  border-bottom: 3px solid transparent;
  transition: all 0.15s;
}
.tab-btn:hover { color: var(--text); background: var(--bg); }
.tab-btn.active {
  color: var(--accent-dark);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

/* ========== Tab Content ========== */
.tab-content { display: none; }
.tab-content.active { display: block; }

.main-layout {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 24px;
}
.single-layout {
  max-width: 1000px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

@media (max-width: 1024px) {
  .main-layout {
    grid-template-columns: 1fr;
  }
}

/* ========== Cards ========== */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}
.card h2 {
  font-size: 16px;
  margin-bottom: 12px;
  color: var(--text);
}
.card-header-row {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 12px;
}
.card-header-row h2 { margin-bottom: 0; }
.hint {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 12px;
  line-height: 1.55;
}
.empty-note {
  padding: 16px;
  background: var(--bg);
  border: 1px dashed var(--border-strong);
  border-radius: 8px;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}

/* ========== Forms ========== */
.form-group { margin-bottom: 14px; }
.field-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
input[type="text"], input[type="password"], input[type="number"], textarea, select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: white;
  color: var(--text);
  transition: border-color 0.15s, box-shadow 0.15s;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(22,163,74,0.18);
}
textarea { resize: vertical; min-height: 100px; line-height: 1.6; font-family: inherit; }
.form-actions {
  display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap;
}

/* ========== Buttons ========== */
.btn-primary {
  background: var(--accent);
  color: white;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  transition: background 0.15s, transform 0.05s;
}
.btn-primary:hover { background: var(--accent-dark); }
.btn-primary:active { transform: translateY(1px); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-generate {
  width: 100%;
  padding: 14px 20px;
  font-size: 16px;
  margin-top: 8px;
}

.btn-ghost {
  background: rgba(255,255,255,0.12);
  color: white;
  padding: 7px 14px;
  border-radius: 6px;
  font-size: 13px;
  transition: background 0.15s;
}
.btn-ghost:hover { background: rgba(255,255,255,0.2); }

.tab-content .btn-ghost {
  background: white;
  color: var(--text);
  border: 1px solid var(--border-strong);
}
.tab-content .btn-ghost:hover { background: var(--bg); }

.btn-ghost-sm {
  background: var(--bg);
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 5px 10px;
  border-radius: 6px;
  font-size: 12px;
}
.btn-ghost-sm:hover { background: var(--border); color: var(--text); }

.link-btn {
  color: var(--accent-dark);
  font-weight: 600;
  text-decoration: underline;
  background: none;
  padding: 0;
}

/* ========== Input Tabs ========== */
.input-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.input-tab-btn {
  padding: 8px 16px;
  font-size: 13px;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.input-tab-btn.active {
  color: var(--accent-dark);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

/* ========== File Drop ========== */
.file-drop {
  border: 2px dashed var(--border-strong);
  border-radius: 10px;
  padding: 32px 20px;
  text-align: center;
  background: var(--bg);
  transition: border-color 0.15s, background 0.15s;
}
.file-drop.drag-over {
  border-color: var(--accent);
  background: var(--accent-light);
}
.file-drop-icon { font-size: 36px; margin-bottom: 8px; }
.file-drop-text { font-size: 14px; color: var(--text); margin-bottom: 4px; }
.file-drop-hint { font-size: 12px; color: var(--text-muted); }
.pdf-status {
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13px;
}
.pdf-status.loading { background: var(--info-light); color: var(--info); }
.pdf-status.success { background: var(--accent-light); color: var(--accent-dark); }
.pdf-status.error { background: var(--danger-light); color: var(--danger); }

/* ========== Pills / Options ========== */
.option-row { margin-bottom: 10px; }
.option-row:last-child { margin-bottom: 0; }
.check-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.15s;
}
.check-pill input { margin: 0; }
.check-pill:has(input:checked) {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent-dark);
  font-weight: 500;
}

/* ========== Row Between ========== */
.row-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
}
.char-count { font-size: 12px; color: var(--text-muted); }

/* ========== Guideline Selector ========== */
.guideline-selector {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.guideline-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s;
}
.guideline-pill:hover { border-color: var(--accent); }
.guideline-pill:has(input:checked) {
  background: var(--accent-light);
  border-color: var(--accent);
}
.guideline-pill .gp-meta {
  flex: 1;
  display: flex;
  flex-direction: column;
}
.guideline-pill .gp-title { font-weight: 600; font-size: 14px; }
.guideline-pill .gp-info { font-size: 12px; color: var(--text-muted); }

/* ========== Guideline List ========== */
.guideline-list { display: flex; flex-direction: column; gap: 10px; }
.guideline-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.guideline-item-body { flex: 1; }
.guideline-item-title { font-weight: 600; margin-bottom: 4px; }
.guideline-item-meta { font-size: 12px; color: var(--text-muted); margin-bottom: 8px; }
.guideline-item-preview {
  font-size: 13px;
  color: var(--text-muted);
  background: white;
  padding: 8px 10px;
  border-radius: 6px;
  max-height: 80px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: pre-wrap;
  word-break: break-word;
}
.guideline-item-actions { display: flex; flex-direction: column; gap: 6px; }

/* ========== Result Panel ========== */
.summary-panel { position: relative; }
.summary-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--shadow);
}
.sticky { position: sticky; top: 70px; max-height: calc(100vh - 90px); overflow-y: auto; }
.summary-card h2 { font-size: 16px; margin-bottom: 12px; }

.result-empty {
  padding: 40px 20px;
  text-align: center;
  color: var(--text-muted);
}
.empty-icon { font-size: 48px; margin-bottom: 12px; opacity: 0.4; }

.result-loading {
  padding: 40px 20px;
  text-align: center;
  color: var(--text-muted);
}
.loading-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 16px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ========== Result Items ========== */
.result-summary {
  background: var(--bg);
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 13px;
}
.result-summary .badge-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 6px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-info { background: var(--info-light); color: var(--info); }
.badge-success { background: var(--accent-light); color: var(--accent-dark); }
.badge-neutral { background: var(--border); color: var(--text-muted); }

.issue-list { display: flex; flex-direction: column; gap: 10px; }
.issue-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  background: white;
  transition: all 0.15s;
}
.issue-card.severity-high { border-left: 4px solid var(--danger); }
.issue-card.severity-medium { border-left: 4px solid var(--warning); }
.issue-card.severity-low { border-left: 4px solid var(--info); }
.issue-card.applied { background: var(--accent-light); border-color: var(--accent); opacity: 0.85; }
.issue-card.dismissed { background: var(--bg); opacity: 0.5; }

.issue-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 8px;
  gap: 8px;
  flex-wrap: wrap;
}
.issue-type { font-size: 12px; font-weight: 600; }
.issue-num { font-size: 12px; color: var(--text-muted); }

.issue-text {
  font-size: 13px;
  padding: 8px 10px;
  border-radius: 6px;
  margin-bottom: 6px;
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.55;
}
.issue-original {
  background: var(--danger-light);
  color: #991b1b;
  text-decoration: line-through;
  text-decoration-color: rgba(153,27,27,0.4);
}
.issue-suggestion {
  background: var(--accent-light);
  color: #064e3b;
}
.issue-reason {
  font-size: 12px;
  color: var(--text-muted);
  padding: 6px 10px;
  background: var(--bg);
  border-radius: 6px;
  margin-bottom: 8px;
}
.issue-reason strong { color: var(--text); }
.issue-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.issue-actions button {
  flex: 1;
  min-width: 80px;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  transition: all 0.15s;
}
.btn-apply { background: var(--accent); color: white; }
.btn-apply:hover { background: var(--accent-dark); }
.btn-dismiss { background: var(--bg); color: var(--text-muted); border: 1px solid var(--border); }
.btn-dismiss:hover { background: var(--border); }
.btn-undo { background: var(--info-light); color: var(--info); }

.result-actions {
  display: flex; gap: 6px; flex-wrap: wrap;
  margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border);
}
.result-actions button { flex: 1; min-width: 100px; padding: 8px; font-size: 13px; border-radius: 8px; }

/* ========== Generate Status ========== */
.generate-status {
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13px;
  min-height: 0;
}
.generate-status:empty { padding: 0; }
.generate-status.error { background: var(--danger-light); color: var(--danger); }
.generate-status.info { background: var(--info-light); color: var(--info); }
.generate-status.success { background: var(--accent-light); color: var(--accent-dark); }

/* ========== History List ========== */
.history-list { display: flex; flex-direction: column; gap: 10px; }
.history-item {
  display: flex; align-items: center; gap: 12px;
  padding: 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.15s;
}
.history-item:hover { border-color: var(--accent); background: white; }
.history-item-body { flex: 1; }
.history-item-title { font-weight: 600; margin-bottom: 2px; }
.history-item-meta { font-size: 12px; color: var(--text-muted); }
.history-item-actions { display: flex; gap: 6px; }

/* ========== Modal ========== */
[hidden] { display: none !important; }
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15,23,42,0.5);
  backdrop-filter: blur(2px);
}
.modal-body {
  position: relative;
  background: white;
  border-radius: 14px;
  max-width: 560px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}
.modal-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
}
.modal-header h2 { font-size: 18px; }
.modal-close {
  font-size: 28px;
  width: 32px; height: 32px;
  border-radius: 50%;
  color: var(--text-muted);
  display: flex; align-items: center; justify-content: center;
}
.modal-close:hover { background: var(--bg); color: var(--text); }
.modal-content { padding: 20px 24px; }
.modal-content h3 { font-size: 14px; margin: 14px 0 6px; color: var(--text); }
.modal-content h3:first-child { margin-top: 0; }
.modal-content ol { padding-left: 20px; margin-bottom: 12px; }
.modal-content ol li { margin-bottom: 4px; font-size: 14px; }
.modal-content p { font-size: 14px; color: var(--text-muted); margin-bottom: 8px; }

.api-note {
  background: var(--info-light);
  color: var(--info);
  padding: 12px;
  border-radius: 8px;
  font-size: 13px;
  margin-top: 12px;
}
.api-note a { color: var(--info); font-weight: 600; }
.api-status {
  margin-top: 12px;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 13px;
  min-height: 0;
}
.api-status:empty { padding: 0; }
.api-status.success { background: var(--accent-light); color: var(--accent-dark); }
.api-status.error { background: var(--danger-light); color: var(--danger); }

/* ========== Toast ========== */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: white;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 14px;
  z-index: 2000;
  box-shadow: var(--shadow-lg);
  animation: toast-in 0.2s ease-out;
}
.toast.success { background: var(--accent-dark); }
.toast.error { background: var(--danger); }
@keyframes toast-in {
  from { opacity: 0; transform: translate(-50%, 10px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

/* ========== Diff Preview ========== */
.diff-preview {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  font-size: 13px;
  line-height: 1.7;
  max-height: 300px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-word;
  margin-top: 12px;
}
.diff-preview ins { background: var(--accent-light); color: #064e3b; text-decoration: none; }
.diff-preview del { background: var(--danger-light); color: #991b1b; }

/* ========== User Chip ========== */
.user-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 4px 4px 8px;
  background: rgba(255,255,255,0.12);
  border-radius: 18px;
  font-size: 13px;
}
.user-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  object-fit: cover;
}
.user-name {
  color: white;
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.user-menu-btn {
  color: white;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: 2px;
}
.user-menu-btn:hover { background: rgba(255,255,255,0.25); }

/* ========== Lock Overlay ========== */
.lock-overlay {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, var(--header-grad-from) 0%, var(--header-grad-to) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5000;
  padding: 20px;
}
.lock-box {
  max-width: 460px;
  width: 100%;
  background: white;
  border-radius: 16px;
  padding: 32px 28px;
  box-shadow: var(--shadow-lg);
  text-align: center;
}
.lock-logo-img {
  width: 88px;
  height: 88px;
  border-radius: 20px;
  margin: 0 auto 16px;
  display: block;
  box-shadow: 0 6px 18px rgba(10,31,14,0.18);
}
.lock-box h2 { font-size: 20px; margin-bottom: 8px; }
.lock-box p { color: var(--text-muted); font-size: 14px; line-height: 1.6; margin-bottom: 20px; }

.btn-google {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 12px 20px;
  background: white;
  color: #3c4043;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  transition: box-shadow 0.15s, border-color 0.15s;
}
.btn-google:hover {
  box-shadow: var(--shadow);
  border-color: var(--accent);
}
.lock-note {
  font-size: 12px !important;
  color: var(--text-light) !important;
  margin-top: 14px !important;
}
.config-warning {
  text-align: left;
  background: var(--warning-light);
  border-left: 4px solid var(--warning);
  padding: 14px 16px;
  border-radius: 8px;
  font-size: 13px;
  color: var(--text);
}
.config-warning strong { display: block; margin-bottom: 8px; color: var(--warning); }
.config-warning p { font-size: 13px !important; color: var(--text) !important; margin-bottom: 8px !important; line-height: 1.55; }
.config-warning p:last-child { margin-bottom: 0 !important; }
.config-warning code {
  background: rgba(0,0,0,0.06);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 12px;
}
.lock-error {
  margin-top: 14px;
  padding: 10px 12px;
  background: var(--danger-light);
  color: var(--danger);
  border-radius: 8px;
  font-size: 13px;
  text-align: left;
}

/* ========== Mobile ========== */
@media (max-width: 640px) {
  .header-inner { flex-direction: column; align-items: flex-start; }
  .header-right { width: 100%; align-items: flex-start; }
  .main-layout, .single-layout { padding: 16px; }
  .card { padding: 16px; }
  .brand-text h1 { font-size: 18px; }
  .brand-text p { font-size: 12px; }
}