@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=DM+Mono:wght@400;500&display=swap');

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface-2: #21253a;
  --border: #2a2d3a;
  --accent: #E04214;
  --accent-hover: #F05A2A;
  --text-primary: #f0f0f5;
  --text-secondary: #8b8fa8;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --radius: 10px;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'DM Mono', monospace;
}

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

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

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

a:hover {
  color: var(--accent-hover);
}

/* ── Buttons ── */

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 10px 20px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.18s, transform 0.1s;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 20px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.18s, border-color 0.18s, color 0.18s;
}

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

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
  border-radius: 7px;
}

/* ── Cards ── */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.card-sm {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

/* ── Form Fields ── */

.input-field {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  outline: none;
  transition: border-color 0.18s, box-shadow 0.18s;
}

.input-field:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(224, 66, 20, 0.2);
}

.input-field::placeholder {
  color: var(--text-secondary);
}

.textarea-field {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  outline: none;
  resize: vertical;
  min-height: 120px;
  transition: border-color 0.18s, box-shadow 0.18s;
}

.textarea-field:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(224, 66, 20, 0.2);
}

.textarea-field::placeholder {
  color: var(--text-secondary);
}

.select-field {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  outline: none;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238b8fa8' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
  transition: border-color 0.18s, box-shadow 0.18s;
}

.select-field:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(224, 66, 20, 0.2);
}

.select-field option {
  background: var(--surface-2);
}

/* ── Badges ── */

.badge {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 20px;
}

.badge-success {
  display: inline-block;
  background: var(--success);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 20px;
}

.badge-warning {
  display: inline-block;
  background: var(--warning);
  color: #000;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 20px;
}

/* ── Output Block ── */

.output-block {
  position: relative;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  min-height: 80px;
}

.output-placeholder {
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 13px;
}

.output-content {
  white-space: pre-wrap;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-primary);
}

/* ── Copy Button ── */

.copy-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--surface);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
  transition: background 0.18s, color 0.18s, border-color 0.18s;
}

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

.copy-btn.copied {
  background: var(--success);
  color: #fff;
  border-color: var(--success);
}

/* ── Spinner ── */

.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: middle;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── Toast ── */

.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 20px;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 500;
  z-index: 9999;
  transform: translateY(80px);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  pointer-events: none;
  max-width: 320px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

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

/* ── Preferences Panel ── */

.pref-panel {
  border-top: 1px solid var(--border);
  padding-top: 16px;
  margin-top: 8px;
}

.pref-toggle {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 14px;
  cursor: pointer;
  padding: 4px 0;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.18s;
}

.pref-toggle:hover {
  color: var(--text-primary);
}

.pref-content {
  display: none;
  padding-top: 16px;
  gap: 16px;
  flex-direction: column;
}

.pref-content.open {
  display: flex;
}

/* ── Mode Tabs ── */

.mode-tabs {
  display: flex;
  border-bottom: 2px solid var(--border);
  margin-bottom: 24px;
  gap: 0;
}

.mode-tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  padding: 10px 20px;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.18s, border-color 0.18s;
}

.mode-tab:hover {
  color: var(--text-primary);
}

.mode-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ── Feedback Row ── */

.feedback-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.feedback-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 5px 10px;
  color: var(--text-secondary);
  font-size: 16px;
  cursor: pointer;
  transition: background 0.18s, color 0.18s, border-color 0.18s;
}

.feedback-btn:hover {
  background: var(--surface-2);
  color: var(--text-primary);
}

.feedback-btn.active-up {
  background: rgba(34, 197, 94, 0.15);
  border-color: var(--success);
  color: var(--success);
}

.feedback-btn.active-down {
  background: rgba(239, 68, 68, 0.15);
  border-color: var(--danger);
  color: var(--danger);
}

.feedback-expand {
  display: none;
  width: 100%;
  margin-top: 8px;
  gap: 8px;
  flex-direction: column;
}

.feedback-expand.open {
  display: flex;
}

.feedback-label {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ── Form Layout ── */

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: var(--font-mono);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 600px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.form-stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ── Page Header ── */

.page-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}

.page-header a {
  color: var(--text-secondary);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.18s;
}

.page-header a:hover {
  color: var(--text-primary);
}

.page-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
}

.page-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ── API Key Card ── */

.api-key-card {
  margin-bottom: 24px;
}

.api-key-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
}

.api-key-body {
  display: none;
  padding-top: 16px;
  gap: 10px;
  flex-direction: column;
}

.api-key-body.open {
  display: flex;
}

.api-key-row {
  display: flex;
  gap: 10px;
}

/* ── Lock Screen ── */

.lock-screen {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.lock-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  width: 100%;
  max-width: 380px;
  text-align: center;
}

.lock-card h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}

.lock-card p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 24px;
}

.lock-card .input-field {
  text-align: center;
  margin-bottom: 12px;
  letter-spacing: 0.1em;
}

.lock-card.shake {
  animation: shake 0.4s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-6px); }
  80% { transform: translateX(6px); }
}

.lock-error {
  color: var(--danger);
  font-size: 13px;
  margin-top: 8px;
  min-height: 18px;
}

/* ── Portal Content ── */

.portal-content {
  display: none;
}

.portal-content.visible {
  display: block;
}

/* ── Main Layout ── */

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.container-wide {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

/* ── Section spacing ── */

.section-gap {
  margin-bottom: 24px;
}

/* ── Status indicator ── */

.status-indicator {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
  min-height: 20px;
  margin-top: 6px;
}

.status-indicator.success {
  color: var(--success);
}

.status-indicator.error {
  color: var(--danger);
}

/* ── URL Row ── */

.url-row {
  display: flex;
  gap: 10px;
}

.url-row .input-field {
  flex: 1;
}

/* ── Source toggle ── */

.source-toggle-link {
  font-size: 13px;
  color: var(--accent);
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--font-body);
  padding: 0;
  margin-top: 4px;
  display: inline-block;
}

.source-toggle-link:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* ── Progress indicator ── */

.progress-text {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 8px;
  min-height: 20px;
}

/* ── Divider ── */

.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 24px 0;
}

/* ── Tool cards grid ── */

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.tool-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.18s, transform 0.18s;
}

.tool-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.tool-icon {
  width: 40px;
  height: 40px;
  background: rgba(224, 66, 20, 0.12);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.tool-title {
  font-size: 16px;
  font-weight: 700;
}

.tool-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
  flex: 1;
}

/* ── Portal cards (index.html) ── */

.portal-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.portal-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: border-color 0.2s, transform 0.2s;
}

.portal-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.portal-card-icon {
  width: 52px;
  height: 52px;
  background: rgba(224, 66, 20, 0.12);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.portal-card-title {
  font-size: 20px;
  font-weight: 700;
}

.portal-card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
}

/* ── Site header ── */

.site-header {
  border-bottom: 1px solid var(--border);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-logo span {
  color: var(--accent);
}

.site-subtitle {
  font-size: 12px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

/* ── Site footer ── */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 20px 24px;
  text-align: center;
  font-size: 13px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

/* ── Back nav ── */

.back-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 24px;
  text-decoration: none;
  transition: color 0.18s;
}

.back-nav:hover {
  color: var(--text-primary);
}

/* ── Radio group ── */

.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.radio-btn {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 7px 14px;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.radio-btn:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}

.radio-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ── Fade in animation ── */

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.3s ease forwards;
}

/* ── Multi-output blocks ── */

.output-label {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

/* ── Warning banner ── */

.warning-banner {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 14px;
  color: var(--warning);
  margin-bottom: 20px;
}