/* ==========================================================================
   AGE YT# Script & Caption Studio — style.css
   Tema: "Mixer Panel" — 7 channel fitur, tiap channel warna aksennya sendiri.
   Font: system stack (tanpa network request tambahan) → ringan di low-spec.
   ========================================================================== */

:root {
  --bg        : #12111a;
  --surface   : #1c1b29;
  --surface-2 : #242233;
  --border    : #322f47;
  --text      : #f4f3f9;
  --text-muted: #a29fb8;
  --accent    : #4c6fff;
  --radius    : 14px;
  --font      : -apple-system, "Segoe UI", "Inter", system-ui, sans-serif;
}

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

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}

button, input, select, textarea { font-family: inherit; color: inherit; }
code {
  font-size: .82em;
  background: var(--surface-2);
  padding: 2px 6px;
  border-radius: 5px;
  border: 1px solid var(--border);
}

/* ── Shell ─────────────────────────────────────────────────────────────── */

.app-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  max-width: 1180px;
  margin: 0 auto;
}

/* ── Header ────────────────────────────────────────────────────────────── */

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  gap: 12px;
  flex-wrap: wrap;
}

.app-title {
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -.02em;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.app-title .tag {
  font-size: .65rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, #4c6fff, #ff5a5f, #8b5cf6);
  color: #0c0b12;
}

.app-subtitle {
  font-size: .8rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0;
}

.settings-btn {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: border-color .15s;
}
.settings-btn:hover { border-color: var(--accent); }

/* ── Layout ────────────────────────────────────────────────────────────── */

.main-layout { display: flex; flex: 1; flex-direction: column; }

@media (min-width: 860px) { .main-layout { flex-direction: row; } }

/* ── Nav strip ─────────────────────────────────────────────────────────── */

.feature-nav {
  display: flex;
  overflow-x: auto;
  gap: 8px;
  padding: 12px;
  border-bottom: 1px solid var(--border);
  scrollbar-width: none;
}
.feature-nav::-webkit-scrollbar { display: none; }

@media (min-width: 860px) {
  .feature-nav {
    flex-direction: column;
    width: 255px; min-width: 255px;
    border-bottom: none;
    border-right: 1px solid var(--border);
    overflow-x: visible;
    height: calc(100vh - 61px);
    position: sticky; top: 61px;
    padding: 14px 10px;
    gap: 4px;
  }
}

.nav-item {
  --accent: #4c6fff;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  background: transparent;
  border: 1px solid transparent;
  border-left: 3px solid transparent;
  border-radius: 10px;
  padding: 10px 12px;
  cursor: pointer;
  text-align: left;
  min-width: 158px;
  transition: background .15s, border-color .15s;
}

@media (min-width: 860px) { .nav-item { min-width: 0; width: 100%; } }

.nav-item:hover { background: var(--surface); border-color: var(--border); }
.nav-item.active {
  background: var(--surface-2);
  border-color: var(--accent);
  border-left-color: var(--accent);
}

.nav-icon { font-size: 1.1rem; flex-shrink: 0; }

.nav-text { display: flex; flex-direction: column; min-width: 0; }

.nav-label { font-size: .83rem; font-weight: 700; white-space: nowrap; }
.nav-item.active .nav-label { color: var(--accent); }

.nav-subtitle {
  display: none;
  font-size: .71rem;
  color: var(--text-muted);
  margin-top: 2px;
  white-space: normal;
}
@media (min-width: 860px) { .nav-subtitle { display: block; } }

/* ── Content ───────────────────────────────────────────────────────────── */

.content-area {
  flex: 1;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 20px;
}

.panel-title {
  font-weight: 800;
  font-size: 1.15rem;
  margin: 0 0 2px;
  color: var(--accent);
}
.panel-subtitle {
  color: var(--text-muted);
  font-size: .84rem;
  margin: 0 0 16px;
}

/* ── Form fields ───────────────────────────────────────────────────────── */

.field-label {
  display: block;
  font-size: .75rem;
  font-weight: 700;
  color: var(--text-muted);
  margin: 14px 0 6px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.field-label:first-child { margin-top: 0; }

.req      { color: var(--accent); }
.optional { text-transform: none; font-weight: 400; letter-spacing: 0; }

.field-input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: .91rem;
  resize: vertical;
  transition: border-color .15s, box-shadow .15s;
}
.field-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}

/* ── Audience chips ────────────────────────────────────────────────────── */

.aud-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 4px;
}

.aud-chip {
  --chip-color: #4c6fff;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: .8rem;
  font-weight: 500;
  cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
  white-space: nowrap;
}
.aud-chip:hover {
  border-color: var(--chip-color);
  color: var(--chip-color);
}
.aud-chip.selected {
  background: color-mix(in srgb, var(--chip-color) 18%, transparent);
  border-color: var(--chip-color);
  color: var(--chip-color);
  font-weight: 700;
}

/* ── Error ─────────────────────────────────────────────────────────────── */

.form-error {
  margin-top: 10px;
  padding: 10px 12px;
  background: color-mix(in srgb, #ff5a5f 12%, var(--surface));
  border: 1px solid #ff5a5f;
  color: #ffb4b7;
  border-radius: 8px;
  font-size: .84rem;
  line-height: 1.5;
}

/* ── Generate button ───────────────────────────────────────────────────── */

.btn-generate {
  margin-top: 16px;
  width: 100%;
  background: var(--accent);
  border: none;
  color: #0c0b12;
  font-weight: 800;
  font-size: .95rem;
  padding: 13px;
  border-radius: 10px;
  cursor: pointer;
  transition: filter .15s, transform .1s;
}
.btn-generate:hover  { filter: brightness(1.1); }
.btn-generate:active { transform: scale(.99); }
.btn-generate:disabled { opacity: .55; cursor: wait; }

/* ── Output panel ──────────────────────────────────────────────────────── */

#output-panel.hidden { display: none; }

.output-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.output-meta { display: flex; gap: 6px; flex-wrap: wrap; }

.aud-badge {
  font-size: .72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  color: var(--accent);
  white-space: nowrap;
}

.output-actions { display: flex; gap: 8px; margin-left: auto; }

.btn-secondary {
  background: var(--surface-2);
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 7px 14px;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s, color .15s;
}
.btn-secondary:hover { background: var(--accent); color: #0c0b12; }

#output-text {
  white-space: pre-wrap;
  line-height: 1.65;
  font-size: .91rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  max-height: 520px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

/* ── Modal API Key ─────────────────────────────────────────────────────── */

.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(6,5,10,.75);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 50;
  backdrop-filter: blur(3px);
}
.modal-overlay.hidden { display: none; }

.modal-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%; max-width: 470px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 24px;
}
.modal-box h2 { font-weight: 800; margin: 0 0 6px; font-size: 1.1rem; }
.modal-desc { color: var(--text-muted); font-size: .82rem; margin: 0 0 16px; line-height: 1.55; }

.key-list { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.key-empty { color: var(--text-muted); font-size: .82rem; }

.key-row {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: .82rem;
}
.key-row.active { border-color: var(--accent); }
.key-radio { color: var(--accent); }
.key-label { font-weight: 700; cursor: pointer; flex-shrink: 0; }
.key-masked { color: var(--text-muted); flex: 1; text-align: right; font-family: monospace; font-size: .78rem; }
.key-remove { background: none; border: none; color: var(--text-muted); cursor: pointer; padding: 2px 4px; }
.key-remove:hover { color: #ff5a5f; }

.key-add-row { display: flex; gap: 6px; margin-bottom: 4px; flex-wrap: wrap; }
.key-add-row input, .worker-url-row input {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 10px;
  font-size: .84rem;
}
.key-add-row input:focus, .worker-url-row input:focus {
  outline: none; border-color: var(--accent);
}

#new-key-label { flex: 1; min-width: 90px; }
#new-key-input { flex: 2; min-width: 160px; }

.btn-add-key {
  background: var(--accent); border: none;
  color: #0c0b12; font-weight: 700;
  border-radius: 8px; padding: 9px 14px;
  cursor: pointer; font-size: .84rem;
  white-space: nowrap;
}
.btn-add-key:hover { filter: brightness(1.1); }

.divider { border: none; border-top: 1px solid var(--border); margin: 18px 0; }

.worker-url-row { display: flex; gap: 6px; }
.worker-url-row input { flex: 1; }

.close-modal-row { display: flex; justify-content: flex-end; margin-top: 18px; }
.btn-close-modal {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 20px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 700;
  font-size: .85rem;
  transition: border-color .15s;
}
.btn-close-modal:hover { border-color: var(--accent); }

/* ── Toast ─────────────────────────────────────────────────────────────── */

.toast {
  position: fixed;
  bottom: 20px; right: 20px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 18px;
  font-size: .85rem;
  z-index: 100;
  transition: opacity .25s, transform .25s;
}
.toast.hidden { opacity: 0; pointer-events: none; transform: translateY(6px); }
.toast.success { border-color: #22c55e; color: #86efac; }
.toast.error   { border-color: #ff5a5f; color: #fca5a5; }

/* ── Utilities ─────────────────────────────────────────────────────────── */

.hidden { display: none !important; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

/* ── Responsive tweaks ─────────────────────────────────────────────────── */

@media (max-width: 480px) {
  .content-area { padding: 12px; }
  .panel { padding: 16px; }
  .app-header { padding: 10px 14px; }
  .output-actions { margin-left: 0; width: 100%; }
  .btn-secondary { flex: 1; text-align: center; }
}