/* style.css */
:root {
  --bg: #05060a;
  --bg-elevated: #10121a;
  --accent: #d4af37;
  --accent-soft: rgba(212, 175, 55, 0.18);
  --text-main: #f5f5f7;
  --text-sub: #a0a3b1;
  --border-soft: #262938;
  --radius-lg: 18px;
  --radius-md: 12px;
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.55);
  --shadow-subtle: 0 10px 30px rgba(0, 0, 0, 0.35);
  --transition-fast: 0.18s ease-out;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* Light theme overrides */
body.theme-light {
  --bg: #f5f5f7;
  --bg-elevated: #ffffff;
  --text-main: #111111;
  --text-sub: #555a6b;
  --border-soft: #d0d3e0;
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.08);
  --shadow-subtle: 0 10px 30px rgba(0, 0, 0, 0.06);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: radial-gradient(circle at top, #151827 0, var(--bg) 55%, #020308 100%);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  text-decoration: underline;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* HEADER */
header {
  padding: 18px 20px 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1120px;
  margin: 0 auto;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 20%, #fff 0, #f5e3a1 12%, #d4af37 40%, #7a5a1f 100%);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08), 0 10px 25px rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #05060a;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand-text-main {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-text-sub {
  font-size: 11px;
  color: var(--text-sub);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-note {
  font-size: 11px;
  color: var(--text-sub);
  border-radius: 999px;
  border: 1px solid rgba(212, 175, 55, 0.35);
  padding: 6px 12px;
  background: linear-gradient(120deg, rgba(212, 175, 55, 0.12), rgba(10, 12, 20, 0.9));
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

body.theme-light .header-note {
  background: linear-gradient(120deg, rgba(212, 175, 55, 0.12), #ffffff);
}

.header-note-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: #2ecc71;
  box-shadow: 0 0 0 4px rgba(46, 204, 113, 0.25);
}

.theme-toggle {
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(5, 6, 10, 0.9);
  color: var(--text-sub);
  padding: 6px 10px;
  font-size: 11px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

body.theme-light .theme-toggle {
  background: #ffffff;
  border-color: #d0d3e0;
}

.theme-toggle:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-subtle);
}

.theme-toggle-icon {
  font-size: 13px;
}

.theme-toggle-label {
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* MAIN */
main {
  flex: 1;
  padding: 10px 16px 40px;
  display: flex;
  justify-content: center;
}

.shell {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2.4fr);
  gap: 22px;
  align-items: flex-start;
}

@media (max-width: 960px) {
  .shell {
    grid-template-columns: minmax(0, 1fr);
  }
  header {
    flex-direction: column;
    align-items: flex-start;
  }
  .header-right {
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
  }
  .header-note {
    flex: 1;
    justify-content: center;
  }
}

/* HERO & SIDE */
.hero {
  padding: 26px 24px 22px;
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at top left, rgba(212, 175, 55, 0.16), transparent 55%), rgba(10, 12, 20, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.04);
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

body.theme-light .hero {
  background: radial-gradient(circle at top left, rgba(212, 175, 55, 0.16), #ffffff);
  border-color: #e0e3f0;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 120% -10%, rgba(255, 255, 255, 0.12), transparent 55%);
  opacity: 0.7;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-sub);
  font-size: 11px;
  margin-bottom: 10px;
}

body.theme-light .hero-tag {
  background: rgba(0, 0, 0, 0.06);
  border-color: rgba(0, 0, 0, 0.06);
}

.hero-tag-pill {
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(212, 175, 55, 0.16);
  color: var(--accent);
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-title {
  font-size: clamp(22px, 4vw, 28px);
  line-height: 1.3;
  margin: 4px 0 10px;
  letter-spacing: 0.03em;
}

.hero-title span {
  background: linear-gradient(120deg, #fff, #f5e3a1, #d4af37);
  -webkit-background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: 13px;
  color: var(--text-sub);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 18px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.hero-badge {
  font-size: 11px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(5, 6, 10, 0.7);
  color: var(--text-sub);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

body.theme-light .hero-badge {
  background: #ffffff;
  border-color: #e0e3f0;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent);
}

.hero-safe {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  background: rgba(5, 6, 10, 0.9);
  border: 1px solid rgba(212, 175, 55, 0.35);
  box-shadow: var(--shadow-subtle);
  margin-bottom: 6px;
}

body.theme-light .hero-safe {
  background: #ffffff;
  border-color: rgba(212, 175, 55, 0.5);
}

.hero-safe-icon {
  width: 20px;
  height: 20px;
  border-radius: 999px;
  border: 1px solid rgba(212, 175, 55, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--accent);
  flex-shrink: 0;
}

.hero-safe-main {
  font-size: 12px;
  color: var(--text-main);
  margin-bottom: 2px;
}

.hero-safe-sub {
  font-size: 11px;
  color: var(--text-sub);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 10px;
  font-size: 11px;
  color: var(--text-sub);
}

.hero-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hero-meta-dot {
  width: 4px;
  height: 4px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.4);
}

/* SIDE PANEL */
.side-panel {
  margin-top: 18px;
  padding: 18px 16px 16px;
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at top right, rgba(212, 175, 55, 0.16), rgba(7, 9, 16, 0.98));
  border: 1px solid rgba(255, 255, 255, 0.04);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

body.theme-light .side-panel {
  background: radial-gradient(circle at top right, rgba(212, 175, 55, 0.16), #ffffff);
  border-color: #e0e3f0;
}

.side-title {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-sub);
}

.side-title span {
  color: var(--accent);
}

.side-card {
  padding: 10px 10px 9px;
  border-radius: var(--radius-md);
  background: rgba(5, 6, 10, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 11px;
  color: var(--text-sub);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

body.theme-light .side-card {
  background: #ffffff;
  border-color: #e0e3f0;
}

.side-card strong {
  color: var(--text-main);
  font-weight: 600;
}

.side-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

.side-badge {
  font-size: 10px;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(5, 6, 10, 0.9);
  color: var(--text-sub);
}

body.theme-light .side-badge {
  background: #ffffff;
  border-color: #e0e3f0;
}

/* PANEL */
.panel {
  padding: 18px 16px 16px;
  border-radius: var(--radius-lg);
  background: rgba(7, 9, 16, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.04);
  box-shadow: var(--shadow-soft);
}

body.theme-light .panel {
  background: #ffffff;
  border-color: #e0e3f0;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  gap: 10px;
}

.panel-title {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-sub);
}

.panel-title span {
  color: var(--accent);
}

.panel-tabs {
  display: inline-flex;
  padding: 3px;
  border-radius: 999px;
  background: rgba(5, 6, 10, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.06);
  gap: 3px;
}

body.theme-light .panel-tabs {
  background: #f5f5f7;
  border-color: #d0d3e0;
}

.panel-tab {
  border: none;
  background: transparent;
  color: var(--text-sub);
  font-size: 11px;
  padding: 6px 10px;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.panel-tab.active {
  background: linear-gradient(120deg, rgba(212, 175, 55, 0.22), rgba(10, 12, 20, 0.9));
  color: var(--accent);
  transform: translateY(-0.5px);
}

body.theme-light .panel-tab.active {
  background: linear-gradient(120deg, rgba(212, 175, 55, 0.22), #ffffff);
}

/* DROPZONE */
.dropzone {
  border-radius: var(--radius-md);
  border: 1px dashed rgba(255, 255, 255, 0.16);
  background: radial-gradient(circle at top, rgba(212, 175, 55, 0.12), rgba(5, 6, 10, 0.96));
  padding: 18px 14px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  position: relative;
  overflow: hidden;
}

body.theme-light .dropzone {
  background: radial-gradient(circle at top, rgba(212, 175, 55, 0.12), #ffffff);
  border-color: #d0d3e0;
}

.dropzone.dragover {
  border-style: solid;
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(212, 175, 55, 0.4), 0 18px 40px rgba(0, 0, 0, 0.7);
  transform: translateY(-1px);
  background: radial-gradient(circle at top, rgba(212, 175, 55, 0.22), rgba(5, 6, 10, 0.96));
}

body.theme-light .dropzone.dragover {
  background: radial-gradient(circle at top, rgba(212, 175, 55, 0.22), #ffffff);
}

.dropzone-icon {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  margin: 0 auto 8px;
  background: radial-gradient(circle at 30% 20%, #fff 0, #f5e3a1 12%, #d4af37 40%, #7a5a1f 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #05060a;
  font-size: 18px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.7);
}

.dropzone-title {
  font-size: 13px;
  margin-bottom: 4px;
}

.dropzone-sub {
  font-size: 11px;
  color: var(--text-sub);
  margin-bottom: 10px;
}

.dropzone-hint {
  font-size: 10px;
  color: var(--text-sub);
  opacity: 0.9;
}

.dropzone input[type="file"] {
  display: none;
}

/* CONTROLS */
.controls-grid {
  margin-top: 14px;
  padding: 10px 10px 8px;
  border-radius: var(--radius-md);
  background: rgba(5, 6, 10, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.06);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  font-size: 11px;
}

body.theme-light .controls-grid {
  background: #f7f7fb;
  border-color: #e0e3f0;
}

@media (max-width: 640px) {
  .controls-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

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

.control-group-full {
  grid-column: 1 / -1;
}

.control-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.control-label {
  color: var(--text-sub);
  font-size: 11px;
}

.control-value {
  color: var(--accent);
  font-size: 11px;
}

.control-hint {
  font-size: 10px;
  color: var(--text-sub);
}

.slider {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 999px;
  background: #1b1e2a;
  outline: none;
}

body.theme-light .slider {
  background: #d0d3e0;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 20%, #fff 0, #f5e3a1 12%, #d4af37 40%, #7a5a1f 100%);
  border: 2px solid #05060a;
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.35);
  cursor: pointer;
}

.select {
  width: 100%;
  padding: 6px 9px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(5, 6, 10, 0.9);
  color: var(--text-main);
  font-size: 11px;
  outline: none;
}

body.theme-light .select {
  background: #ffffff;
  border-color: #d0d3e0;
  color: #111111;
}

.select:focus {
  border-color: rgba(212, 175, 55, 0.6);
  box-shadow: 0 0 0 1px rgba(212, 175, 55, 0.4);
}

.input-number {
  width: 100%;
  padding: 6px 9px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(5, 6, 10, 0.9);
  color: var(--text-main);
  font-size: 11px;
  outline: none;
}

body.theme-light .input-number {
  background: #ffffff;
  border-color: #d0d3e0;
  color: #111111;
}

.input-number::placeholder {
  color: var(--text-sub);
}

.input-number:focus {
  border-color: rgba(212, 175, 55, 0.6);
  box-shadow: 0 0 0 1px rgba(212, 175, 55, 0.4);
}

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

.radio-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-sub);
}

.radio-label input {
  accent-color: #d4af37;
}

/* BUTTONS */
.buttons-row {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.btn {
  border-radius: 999px;
  border: none;
  padding: 7px 14px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), color var(--transition-fast), opacity var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(120deg, #f5e3a1, #d4af37, #7a5a1f);
  color: #05060a;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.7);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.8);
}

.btn-ghost {
  background: transparent;
  color: var(--text-sub);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

body.theme-light .btn-ghost {
  border-color: #d0d3e0;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.04);
  transform: translateY(-1px);
}

body.theme-light .btn-ghost:hover {
  background: #f0f1f7;
}

.btn:disabled {
  opacity: 0.4;
  cursor: default;
  transform: none;
  box-shadow: none;
}

/* STATUS */
.status {
  margin-top: 8px;
  font-size: 11px;
  color: var(--text-sub);
  display: flex;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.status-strong {
  color: var(--accent);
}

.status-count {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: rgba(212, 175, 55, 0.7);
}

/* PREVIEW PANEL */
.preview-panel {
  margin-top: 14px;
  padding: 10px 10px 8px;
  border-radius: var(--radius-md);
  background: rgba(5, 6, 10, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.06);
  max-height: 260px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

body.theme-light .preview-panel {
  background: #f7f7fb;
  border-color: #e0e3f0;
}

.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: var(--text-sub);
}

.preview-list {
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
}

.preview-list::-webkit-scrollbar {
  width: 6px;
}

.preview-list::-webkit-scrollbar-track {
  background: transparent;
}

.preview-list::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 999px;
}

.preview-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
  padding: 6px 4px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 11px;
}

body.theme-light .preview-item {
  border-color: #e0e3f0;
}

.preview-thumb {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  overflow: hidden;
  background: #151827;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

body.theme-light .preview-thumb {
  background: #f0f1f7;
  border-color: #d0d3e0;
}

.preview-thumb img {
  max-width: 100%;
  max-height: 100%;
  display: block;
}

.preview-info-main {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.preview-name {
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.preview-meta {
  color: var(--text-sub);
  font-size: 10px;
}

.preview-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}

.preview-size {
  font-size: 10px;
  color: var(--text-sub);
}

.preview-download {
  font-size: 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 3px 8px;
  background: rgba(5, 6, 10, 0.9);
  color: var(--accent);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: background var(--transition-fast), transform var(--transition-fast), border-color var(--transition-fast);
}

body.theme-light .preview-download {
  background: #ffffff;
  border-color: #d0d3e0;
}

.preview-download:hover {
  background: rgba(255, 255, 255, 0.04);
  transform: translateY(-0.5px);
  border-color: rgba(212, 175, 55, 0.7);
}

body.theme-light .preview-download:hover {
  background: #f0f1f7;
}

.preview-empty {
  font-size: 11px;
  color: var(--text-sub);
  text-align: center;
  padding: 10px 0 6px;
}

/* FOOTER */
footer {
  padding: 14px 16px 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(3, 4, 8, 0.98);
  font-size: 11px;
  color: var(--text-sub);
}

body.theme-light footer {
  background: #f5f5f7;
  border-color: #d0d3e0;
}

.footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  align-items: center;
}

.footer-link {
  color: var(--accent);
}

.footer-link:hover {
  text-decoration: underline;
}