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

:root {
  --bg:       #0c0c10;
  --surface:  #13131a;
  --surface2: #1a1a24;
  --border:   #2a2a38;
  --accent:   #f97316;
  --accent2:  #fb923c;
  --text:     #e8e8f0;
  --text2:    #8888a8;
  --text3:    #555570;
  --success:  #22c55e;
  --danger:   #ef4444;
  --radius:   10px;
}

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ===== LOGIN ===== */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: radial-gradient(ellipse at 50% 0%, rgba(249,115,22,0.08) 0%, transparent 60%), var(--bg);
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 48px 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 40px 80px rgba(0,0,0,0.5);
}

.login-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 32px;
}

.logo-icon { font-size: 22px; }

.logo-text {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text);
}

.login-card h2 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 6px;
  color: var(--text);
}

.login-sub {
  font-size: 14px;
  color: var(--text2);
  margin-bottom: 28px;
}

.input-wrap {
  margin-bottom: 14px;
}

.input-wrap input,
.field-group input,
.field-group textarea {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 13px 16px;
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}

.input-wrap input:focus,
.field-group input:focus,
.field-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(249,115,22,0.12);
}

.input-wrap input::placeholder,
.field-group input::placeholder,
.field-group textarea::placeholder {
  color: var(--text3);
}

.btn-login {
  width: 100%;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius);
  padding: 14px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}

.btn-login:hover {
  background: var(--accent2);
  transform: translateY(-1px);
}

.login-error {
  margin-top: 14px;
  background: rgba(239,68,68,0.12);
  border: 1px solid rgba(239,68,68,0.3);
  color: #fca5a5;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
}

/* ===== APP LAYOUT ===== */
#appScreen {
  display: flex;
  min-height: 100vh;
}

/* SIDEBAR */
.sidebar {
  width: 220px;
  min-width: 220px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 24px 16px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 17px;
  font-weight: 900;
  letter-spacing: -0.5px;
  padding: 8px 10px 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
  color: var(--text);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: none;
  border: none;
  color: var(--text2);
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s;
  text-align: left;
  width: 100%;
}

.nav-item:hover {
  background: var(--surface2);
  color: var(--text);
}

.nav-item.active {
  background: rgba(249,115,22,0.12);
  color: var(--accent);
  font-weight: 600;
}

.nav-icon {
  font-size: 15px;
  width: 18px;
  text-align: center;
}

.btn-logout-side {
  width: 100%;
  background: none;
  border: 1px solid var(--border);
  color: var(--text2);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  padding: 9px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-logout-side:hover {
  border-color: var(--danger);
  color: var(--danger);
}

/* MAIN AREA */
.main-area {
  flex: 1;
  padding: 40px;
  overflow-y: auto;
  max-width: 820px;
}

/* TAB PANES */
.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* PAGE TITLE */
.page-title {
  margin-bottom: 36px;
}

.page-title h1 {
  font-size: 28px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 6px;
  letter-spacing: -0.5px;
}

.page-title p {
  font-size: 14px;
  color: var(--text2);
}

/* FORM SECTIONS */
.form-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  margin-bottom: 20px;
}

.section-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text2);
  margin-bottom: 20px;
}

.step-num {
  width: 24px;
  height: 24px;
  background: rgba(249,115,22,0.15);
  color: var(--accent);
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 800;
  flex-shrink: 0;
}

/* MODEL CARDS */
.model-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.model-card {
  position: relative;
  background: var(--surface2);
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 20px 16px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.model-card:hover {
  border-color: var(--accent);
  background: rgba(249,115,22,0.04);
}

.model-card.selected {
  border-color: var(--accent);
  background: rgba(249,115,22,0.07);
}

.model-card-icon { font-size: 24px; margin-bottom: 4px; }

.model-card-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
}

.model-card-desc {
  font-size: 12px;
  color: var(--text2);
  line-height: 1.4;
}

.model-card-check {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 20px;
  height: 20px;
  background: var(--accent);
  border-radius: 50%;
  color: white;
  font-size: 11px;
  font-weight: 800;
  display: none;
  align-items: center;
  justify-content: center;
}

.model-card.selected .model-card-check { display: flex; }

/* FIELDS */
.fields-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.field-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text2);
  display: flex;
  align-items: center;
  gap: 8px;
}

.label-warning {
  font-size: 11px;
  font-weight: 500;
  color: var(--accent);
}

.label-optional {
  font-size: 11px;
  font-weight: 500;
  color: var(--text3);
}

.slug-wrap {
  display: flex;
  align-items: center;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.slug-wrap:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(249,115,22,0.12);
}

.slug-prefix {
  padding: 13px 10px 13px 14px;
  font-size: 12px;
  color: var(--text3);
  white-space: nowrap;
  flex-shrink: 0;
  border-right: 1px solid var(--border);
}

.slug-wrap input {
  border: none !important;
  box-shadow: none !important;
  border-radius: 0;
  padding-left: 10px;
  flex: 1;
  min-width: 0;
}

/* HTML HINT */
.html-hint {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: rgba(249,115,22,0.06);
  border: 1px solid rgba(249,115,22,0.2);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 13px;
  color: var(--text2);
  margin-bottom: 12px;
}

.html-hint kbd {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 12px;
  color: var(--text);
  font-family: monospace;
}

.field-group textarea {
  min-height: 380px;
  resize: vertical;
  font-family: 'Courier New', monospace;
  font-size: 12px;
  line-height: 1.5;
}

/* ===== PREVIEW OVERLAY ===== */
.preview-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0,0,0,0.92);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  flex-shrink: 0;
}

.preview-header h2 {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  margin: 0;
}

.preview-header p {
  color: rgba(255,255,255,0.5);
  font-size: 13px;
  margin: 4px 0 0;
}

.preview-close {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  transition: background 0.2s;
}

.preview-close:hover { background: rgba(255,255,255,0.2); }

.preview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  padding: 24px 28px;
  flex: 1;
}

.preview-card {
  background: #1a1a2e;
  border: 2px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s;
}

.preview-card:hover {
  border-color: rgba(249,115,22,0.5);
}

.preview-card-label {
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  background: rgba(0,0,0,0.3);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.preview-frame {
  width: 100%;
  height: 300px;
  overflow: hidden;
  position: relative;
  background: #fff;
}

.preview-frame iframe {
  width: 1200px;
  height: 900px;
  transform: scale(0.37);
  transform-origin: top left;
  border: none;
  pointer-events: none;
}

.preview-actions {
  padding: 12px 16px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.btn-publish-this {
  width: 100%;
  padding: 12px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}

.btn-publish-this:hover {
  background: var(--accent2);
  transform: translateY(-1px);
}

.btn-publish-this:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* SUBMIT */
.form-submit {
  display: flex;
  justify-content: flex-end;
  margin-top: 8px;
}

.btn-generate {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius);
  padding: 15px 36px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 20px rgba(249,115,22,0.3);
}

.btn-generate:hover {
  background: var(--accent2);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(249,115,22,0.4);
}

.btn-generate:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-icon { font-size: 16px; }

/* STATUS */
.gen-status {
  margin-top: 20px;
  padding: 20px 24px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.7;
}

.gen-status.success {
  background: rgba(34,197,94,0.08);
  border: 1px solid rgba(34,197,94,0.25);
  color: #86efac;
  display: block;
}

.gen-status.success a {
  color: var(--success);
  font-weight: 600;
  text-decoration: none;
}

.gen-status.success a:hover { text-decoration: underline; }

.gen-status.error {
  background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.25);
  color: #fca5a5;
  display: block;
}

.gen-status .status-url {
  display: inline-block;
  margin-top: 10px;
  background: rgba(34,197,94,0.12);
  border: 1px solid rgba(34,197,94,0.2);
  padding: 8px 14px;
  border-radius: 8px;
  font-family: monospace;
  font-size: 13px;
  word-break: break-all;
}

.gen-status .status-actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.btn-sm {
  padding: 8px 18px;
  border: none;
  border-radius: 8px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-sm-primary {
  background: var(--success);
  color: white;
}

.btn-sm-primary:hover { background: #16a34a; }

.btn-sm-ghost {
  background: var(--surface2);
  color: var(--text2);
  border: 1px solid var(--border);
}

.btn-sm-ghost:hover { color: var(--text); border-color: var(--text3); }

/* SPINNER */
@keyframes spin {
  to { transform: rotate(360deg); }
}
.spin { display: inline-block; animation: spin 0.8s linear infinite; }

/* ===== PAGES GRID ===== */
.pages-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.empty-state {
  color: var(--text3);
  text-align: center;
  padding: 60px 20px;
  font-size: 14px;
}

.page-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: border-color 0.2s;
}

.page-card:hover { border-color: var(--text3); }

.page-card-left {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
}

.page-card-dot {
  width: 10px;
  height: 10px;
  background: var(--success);
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 8px rgba(34,197,94,0.5);
}

.page-card-info { min-width: 0; }

.page-card-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 3px;
}

.page-card-url {
  font-size: 12px;
  color: var(--text2);
  font-family: monospace;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.page-card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 5px;
  flex-wrap: wrap;
}

.tag {
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
}

.tag-model {
  background: rgba(249,115,22,0.12);
  color: var(--accent);
}

.tag-date {
  color: var(--text3);
  font-size: 11px;
}

.page-card-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.btn-view {
  padding: 7px 16px;
  background: rgba(249,115,22,0.12);
  border: 1px solid rgba(249,115,22,0.25);
  color: var(--accent);
  border-radius: 7px;
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.btn-view:hover {
  background: rgba(249,115,22,0.2);
}

.btn-del {
  padding: 7px 12px;
  background: none;
  border: 1px solid var(--border);
  color: var(--text3);
  border-radius: 7px;
  font-family: inherit;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-del:hover {
  border-color: var(--danger);
  color: var(--danger);
  background: rgba(239,68,68,0.06);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .sidebar { display: none; }
  .main-area { padding: 24px 20px; }
  .model-cards { grid-template-columns: 1fr; }
  .fields-row { grid-template-columns: 1fr; }
}