/* ══════════════════════════════════════════════════
   SUNO FORGE — Dark Terminal Theme
   ══════════════════════════════════════════════════ */

/* ── CSS Custom Properties ── */
:root {
  --bg-primary: #0d0d0d;
  --bg-secondary: #111111;
  --bg-panel: #0a0a0a;
  --bg-input: #080808;
  --bg-card: #101010;
  --cyan: #00f5ff;
  --green: #39ff14;
  --magenta: #ff00cc;
  --red: #ff2244;
  --amber: #ffaa00;
  --white: #e0e0e0;
  --dim: #555555;
  --dimmer: #333333;
  --border: #1a1a1a;
  --font: 'JetBrains Mono', monospace;
  --glow-cyan: 0 0 8px #00f5ff, 0 0 2px #00f5ff;
  --glow-green: 0 0 8px #39ff14, 0 0 2px #39ff14;
  --glow-magenta: 0 0 8px #ff00cc, 0 0 2px #ff00cc;
}

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

html {
  font-size: 14px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--white);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.5;
}

/* ── Scanline Overlay ── */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 245, 255, 0.015) 2px,
    rgba(0, 245, 255, 0.015) 4px
  );
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--dimmer);
  border: none;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--cyan);
}

/* ── Header ── */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  border-bottom: 1px solid var(--dimmer);
  background: var(--bg-secondary);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-title {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-title .emoji {
  font-size: 1.2rem;
  filter: drop-shadow(0 0 4px var(--cyan));
}

.header-subtitle {
  font-size: 0.7rem;
  color: var(--dim);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-top: 2px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ── Settings Toggle ── */
.settings-toggle {
  background: none;
  border: 1px solid var(--dimmer);
  color: var(--dim);
  font-family: var(--font);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 6px 10px;
  transition: all 0.2s;
  border-radius: 0;
}

.settings-toggle:hover {
  color: var(--cyan);
  border-color: var(--cyan);
  box-shadow: var(--glow-cyan);
}

/* ── Settings Dropdown ── */
.settings-panel {
  position: absolute;
  top: 56px;
  right: 24px;
  width: 380px;
  background: var(--bg-secondary);
  border: 1px solid var(--cyan);
  box-shadow: var(--glow-cyan), 0 8px 32px rgba(0, 0, 0, 0.6);
  padding: 20px;
  z-index: 200;
  display: none;
}

.settings-panel.active {
  display: block;
}

.settings-panel h3 {
  font-size: 0.8rem;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--dimmer);
}

.settings-group {
  margin-bottom: 14px;
}

.settings-group label {
  display: block;
  font-size: 0.7rem;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.settings-group .input-row {
  display: flex;
  gap: 6px;
}

.settings-group .input-row input {
  flex: 1;
}

.settings-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--dimmer);
}

.model-meta {
  font-size: 0.6rem;
  color: var(--dim);
  margin-top: 4px;
  letter-spacing: 0.5px;
  line-height: 1.6;
}

.model-meta .model-context {
  color: var(--cyan);
}

.model-meta .model-free {
  color: var(--green);
  font-weight: 600;
}

.model-count {
  font-size: 0.6rem;
  color: var(--dimmer);
  margin-top: 2px;
}

/* ── Iframe Banner ── */
.iframe-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 8px 24px;
  background: rgba(255, 170, 0, 0.08);
  border-bottom: 1px solid var(--amber);
  font-size: 0.7rem;
  color: var(--amber);
  letter-spacing: 0.5px;
  flex-wrap: wrap;
}

.btn-iframe-open {
  background: var(--amber);
  color: #000;
  border-color: var(--amber);
  font-weight: 700;
  padding: 4px 12px;
  text-decoration: none;
  font-family: var(--font);
  font-size: 0.65rem;
  letter-spacing: 1px;
  box-shadow: 0 0 6px rgba(255, 170, 0, 0.4);
  transition: all 0.2s;
}

.btn-iframe-open:hover {
  box-shadow: 0 0 12px rgba(255, 170, 0, 0.6);
  background: #ffbb33;
}

.iframe-dismiss {
  border: none;
  color: var(--amber);
  font-size: 0.7rem;
  padding: 2px 6px;
}

.iframe-dismiss:hover {
  color: var(--white);
}

.iframe-notice {
  margin-top: 14px;
  padding: 10px 12px;
  border: 1px solid var(--amber);
  background: rgba(255, 170, 0, 0.05);
  font-size: 0.65rem;
  color: var(--dim);
  line-height: 1.6;
}

.iframe-notice a {
  color: var(--amber);
  text-decoration: underline;
  font-weight: 600;
}

.iframe-notice a:hover {
  color: var(--white);
}

/* ── Main Grid ── */
.main-grid {
  display: grid;
  grid-template-columns: 240px 1fr 1fr;
  gap: 0;
  min-height: calc(100vh - 56px - 140px);
}

/* ── Panels ── */
.panel {
  border-right: 1px solid var(--dimmer);
  padding: 16px;
  overflow-y: auto;
}

.panel:last-child {
  border-right: none;
}

.panel-label {
  font-size: 0.65rem;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 16px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--dimmer);
}

/* ── Channel Panel (Left) ── */
.channel-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 12px;
}

.channel-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
  font-size: 0.8rem;
}

.channel-item:hover {
  border-color: var(--dimmer);
  background: rgba(0, 245, 255, 0.03);
}

.channel-item.active {
  border-color: var(--cyan);
  background: rgba(0, 245, 255, 0.05);
  box-shadow: inset 3px 0 0 var(--cyan);
}

.channel-item .ch-name {
  color: var(--white);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 120px;
}

.channel-item .ch-badge {
  font-size: 0.6rem;
  padding: 2px 8px;
  border: 1px solid var(--green);
  color: var(--green);
  text-transform: uppercase;
  letter-spacing: 1px;
  white-space: nowrap;
}

.channel-item .ch-delete {
  font-size: 0.7rem;
  color: var(--dimmer);
  cursor: pointer;
  padding: 0 4px;
  transition: color 0.15s;
  background: none;
  border: none;
  font-family: var(--font);
}

.channel-item .ch-delete:hover {
  color: var(--red);
}

/* ── New Channel Form ── */
.new-channel-form {
  display: none;
  padding: 12px;
  border: 1px solid var(--cyan);
  margin-top: 8px;
}

.new-channel-form.active {
  display: block;
}

.new-channel-form .form-group {
  margin-bottom: 8px;
}

.new-channel-form .form-actions {
  display: flex;
  gap: 6px;
  margin-top: 10px;
}

/* ── Buttons ── */
.btn {
  font-family: var(--font);
  font-size: 0.75rem;
  padding: 8px 16px;
  border: 1px solid var(--dimmer);
  background: transparent;
  color: var(--white);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 2px;
  transition: all 0.2s;
  border-radius: 0;
  font-weight: 600;
}

.btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.btn-new-channel {
  width: 100%;
  border: 1px dashed var(--dimmer);
  color: var(--dim);
  padding: 10px;
  margin-top: 8px;
}

.btn-new-channel:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  border-style: solid;
}

.btn-forge {
  width: 100%;
  background: var(--green);
  color: #000;
  border: 1px solid var(--green);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 12px;
  letter-spacing: 3px;
  box-shadow: var(--glow-green);
  position: relative;
  overflow: hidden;
}

.btn-forge:hover {
  background: #2de010;
  box-shadow: 0 0 16px #39ff14, 0 0 4px #39ff14;
}

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

.btn-forge.loading {
  pointer-events: none;
  opacity: 0.7;
}

.btn-forge.loading::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  animation: forge-shimmer 1.5s infinite;
}

@keyframes forge-shimmer {
  to { left: 100%; }
}

.btn-surprise {
  width: 100%;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  padding: 10px;
  letter-spacing: 2px;
}

.btn-surprise:hover {
  background: rgba(0, 245, 255, 0.08);
  box-shadow: var(--glow-cyan);
}

.btn-copy {
  font-size: 0.65rem;
  padding: 4px 12px;
  border: 1px solid var(--dimmer);
  color: var(--dim);
}

.btn-copy:hover {
  border-color: var(--green);
  color: var(--green);
}

.btn-copy.copied {
  border-color: var(--green);
  color: var(--green);
  box-shadow: var(--glow-green);
}

.btn-save {
  border-color: var(--green);
  color: var(--green);
}

.btn-save:hover {
  background: rgba(57, 255, 20, 0.08);
  box-shadow: var(--glow-green);
}

.btn-cancel {
  border-color: var(--dim);
  color: var(--dim);
}

.btn-cancel:hover {
  border-color: var(--red);
  color: var(--red);
}

.btn-danger {
  border-color: var(--red);
  color: var(--red);
}

.btn-danger:hover {
  background: rgba(255, 34, 68, 0.1);
}

.btn-sm {
  font-size: 0.65rem;
  padding: 5px 10px;
  letter-spacing: 1px;
}

.btn-icon {
  padding: 5px 8px;
  font-size: 0.8rem;
  border: 1px solid var(--dimmer);
  background: none;
  color: var(--dim);
  cursor: pointer;
  font-family: var(--font);
  transition: all 0.15s;
  border-radius: 0;
}

.btn-icon:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ── Form Elements ── */
.form-group {
  margin-bottom: 12px;
}

.form-group label {
  display: block;
  font-size: 0.65rem;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 4px;
}

input[type="text"],
input[type="password"],
select,
textarea {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--dimmer);
  color: var(--white);
  font-family: var(--font);
  font-size: 0.8rem;
  padding: 8px 10px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  border-radius: 0;
  -webkit-appearance: none;
  appearance: none;
}

input[type="text"]:focus,
input[type="password"]:focus,
select:focus,
textarea:focus {
  border-color: var(--cyan);
  box-shadow: var(--glow-cyan);
}

select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2300f5ff'%3E%3Cpath d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 30px;
}

select option {
  background: var(--bg-primary);
  color: var(--white);
}

textarea {
  resize: vertical;
  min-height: 60px;
}

/* ── Checkbox ── */
.checkbox-group {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--cyan);
  cursor: pointer;
}

.checkbox-group label {
  font-size: 0.75rem;
  color: var(--dim);
  cursor: pointer;
  margin: 0;
}

/* ── Builder Panel (Center) ── */
.active-channel-label {
  font-size: 0.75rem;
  color: var(--dimmer);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.builder-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 20px;
}

.error-message {
  font-size: 0.7rem;
  color: var(--red);
  text-shadow: 0 0 6px rgba(255, 34, 68, 0.5);
  padding: 8px;
  border: 1px solid var(--red);
  margin-top: 8px;
  display: none;
}

.error-message.active {
  display: block;
  animation: error-flash 0.3s ease;
}

@keyframes error-flash {
  0% { opacity: 0; transform: translateY(-4px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* ── Output Panel (Right) ── */
.output-section {
  margin-bottom: 20px;
}

.output-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.output-label {
  font-size: 0.65rem;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 600;
}

.output-textarea {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--dimmer);
  color: var(--white);
  font-family: var(--font);
  font-size: 0.75rem;
  padding: 10px;
  resize: none;
  outline: none;
  border-radius: 0;
}

.output-textarea:focus {
  border-color: var(--cyan);
}

.char-counter {
  font-size: 0.6rem;
  text-align: right;
  margin-top: 3px;
  letter-spacing: 1px;
}

.char-counter.green { color: var(--green); }
.char-counter.amber { color: var(--amber); }
.char-counter.red { color: var(--red); }

.token-usage {
  font-size: 0.65rem;
  color: var(--dimmer);
  letter-spacing: 1px;
  padding: 8px 0;
  border-top: 1px solid var(--dimmer);
  margin-top: 12px;
}

.btn-save-history {
  width: 100%;
  margin-top: 8px;
}

/* ── Lyrics Section ── */
.lyrics-section {
  display: none;
}

.lyrics-section.active {
  display: block;
}

/* ── History Strip ── */
.history-strip {
  border-top: 1px solid var(--dimmer);
  padding: 12px 24px;
  background: var(--bg-secondary);
}

.history-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.history-header h3 {
  font-size: 0.65rem;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 3px;
}

.history-scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.history-tile {
  min-width: 180px;
  max-width: 200px;
  padding: 10px 12px;
  border: 1px solid var(--dimmer);
  background: var(--bg-card);
  cursor: pointer;
  transition: all 0.15s;
  flex-shrink: 0;
}

.history-tile:hover {
  border-color: var(--cyan);
  background: rgba(0, 245, 255, 0.03);
}

.history-tile .ht-channel {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.history-tile .ht-genre {
  font-size: 0.6rem;
  color: var(--green);
}

.history-tile .ht-time {
  font-size: 0.55rem;
  color: var(--dimmer);
  margin-top: 4px;
}

.history-empty {
  font-size: 0.7rem;
  color: var(--dimmer);
  padding: 10px 0;
  font-style: italic;
}

/* ── Loading Spinner ── */
.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid transparent;
  border-top-color: #000;
  border-right-color: #000;
  animation: spin 0.6s linear infinite;
  margin-right: 8px;
  vertical-align: middle;
}

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

/* ── Password toggle ── */
.password-wrapper {
  position: relative;
}

.password-wrapper input {
  padding-right: 40px;
}

.password-toggle {
  position: absolute;
  right: 1px;
  top: 1px;
  bottom: 1px;
  width: 36px;
  background: var(--bg-input);
  border: none;
  border-left: 1px solid var(--dimmer);
  color: var(--dim);
  cursor: pointer;
  font-family: var(--font);
  font-size: 0.7rem;
  transition: color 0.15s;
}

.password-toggle:hover {
  color: var(--cyan);
}

/* ── File input ── */
.file-input-wrapper {
  position: relative;
  overflow: hidden;
}

.file-input-wrapper input[type="file"] {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .main-grid {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .panel {
    border-right: none;
    border-bottom: 1px solid var(--dimmer);
  }

  .settings-panel {
    width: calc(100% - 48px);
    right: 24px;
    left: 24px;
  }

  .history-scroll {
    flex-direction: column;
  }

  .history-tile {
    min-width: auto;
    max-width: none;
  }
}

@media (max-width: 480px) {
  .header {
    padding: 10px 12px;
  }

  .header-title {
    font-size: 1rem;
    letter-spacing: 2px;
  }

  .panel {
    padding: 12px;
  }

  .history-strip {
    padding: 12px;
  }
}

/* ── Fade-in animation ── */
@keyframes fade-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

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

/* ── Pulse for active generation ── */
@keyframes pulse-border {
  0%, 100% { border-color: var(--cyan); }
  50% { border-color: var(--green); }
}

.pulse-border {
  animation: pulse-border 1.5s ease infinite;
}

/* ── Modal Overlay ── */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(4px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal-card {
  background: var(--bg-secondary);
  border: 1px solid var(--cyan);
  box-shadow: var(--glow-cyan), 0 10px 40px rgba(0, 0, 0, 0.9);
  width: 100%;
  max-width: 560px;
  padding: 20px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--dimmer);
}

.modal-header h3 {
  font-size: 0.85rem;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.sql-textarea {
  font-family: var(--font);
  font-size: 0.65rem;
  line-height: 1.5;
  color: var(--green);
  background: #050505;
  border: 1px solid var(--dimmer);
  padding: 10px;
  resize: vertical;
}