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

:root {
  --bg: #f8fafc;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-strong: rgba(255, 255, 255, 0.9);
  --panel-border: rgba(255, 255, 255, 0.58);
  --text: #0f172a;
  --muted: #64748b;
  --tone-1: #d946ef;
  --tone-2: #8b5cf6;
  --tone-3: #06b6d4;
  --ok: #0ea5a4;
  --danger: #ef4444;
  --warning: #f59e0b;
}

body[data-theme='violet'] {
  --tone-1: #d946ef;
  --tone-2: #8b5cf6;
  --tone-3: #06b6d4;
}

body[data-theme='ocean'] {
  --tone-1: #0284c7;
  --tone-2: #06b6d4;
  --tone-3: #22d3ee;
}

body[data-theme='sunset'] {
  --tone-1: #f97316;
  --tone-2: #ec4899;
  --tone-3: #8b5cf6;
}

html, body {
  min-height: 100%;
}

body {
  font-family: 'Inter', 'Segoe UI', sans-serif;
  background:
    radial-gradient(1100px 480px at 80% -20%, rgba(34, 211, 238, 0.2), transparent 60%),
    radial-gradient(900px 460px at 15% 0%, rgba(216, 180, 254, 0.34), transparent 58%),
    var(--bg);
  color: var(--text);
  overflow-x: hidden;
  position: relative;
  padding: 20px 14px 24px;
}

.bg-blob {
  position: fixed;
  border-radius: 999px;
  filter: blur(88px);
  opacity: 0.55;
  pointer-events: none;
  z-index: 0;
}

.bg-blob-purple {
  width: 340px;
  height: 340px;
  top: -90px;
  left: -70px;
  background: #d8b4fe;
}

.bg-blob-cyan {
  width: 440px;
  height: 440px;
  top: 28px;
  right: -120px;
  background: #bae6fd;
}

.bg-blob-orange {
  width: 320px;
  height: 320px;
  bottom: 60px;
  right: 12%;
  background: #fed7aa;
}

.bg-blob-blue {
  width: 300px;
  height: 300px;
  bottom: -90px;
  left: 8%;
  background: #bfdbfe;
}

.app-shell {
  width: min(1200px, 100%);
  margin: 0 auto;
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: calc(100vh - 92px);
}

.glass-card {
  background: var(--surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--panel-border);
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.08);
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-radius: 20px;
  padding: 14px 18px;
}

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

.app-logo {
  width: 28px;
  height: 28px;
  border-radius: 8px;
}

.header-title {
  font-size: clamp(20px, 2vw, 28px);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.theme-switcher {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.3);
  background: rgba(255, 255, 255, 0.8);
}

.theme-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.theme-select {
  height: 30px;
  border: 1px solid rgba(148, 163, 184, 0.38);
  border-radius: 999px;
  background: #fff;
  color: #0f172a;
  font-size: 12px;
  font-weight: 600;
  padding: 0 28px 0 10px;
  font-family: inherit;
  outline: none;
}

.theme-select:focus {
  border-color: rgba(139, 92, 246, 0.7);
}

.btn-guide,
.btn-playlist,
.btn-expert,
.btn-ffmpeg,
.btn-save,
.btn-eye,
.btn-primary,
.btn-secondary {
  border: none;
  font-family: inherit;
  cursor: pointer;
}

.btn-guide,
.btn-playlist {
  height: 36px;
  border-radius: 999px;
  padding: 0 14px;
  font-size: 13px;
  font-weight: 700;
  color: #334155;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(148, 163, 184, 0.28);
}

.btn-guide:hover,
.btn-playlist:hover {
  background: #fff;
}

.hero {
  text-align: center;
  padding: 14px 8px 8px;
}

.hero-title {
  font-size: clamp(34px, 5.2vw, 56px);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  margin-top: 8px;
  color: var(--muted);
  font-size: clamp(14px, 1.7vw, 18px);
}

.hero-actions {
  margin-top: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.tools-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 34px;
  border-radius: 999px;
  padding: 0 14px;
  font-size: 13px;
  font-weight: 700;
  color: #0f172a;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(148, 163, 184, 0.28);
}

.btn-expert,
.btn-ffmpeg {
  height: 34px;
  border-radius: 999px;
  padding: 0 14px;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(90deg, var(--tone-1), var(--tone-2), var(--tone-3));
}

.btn-expert.active {
  box-shadow: 0 0 0 3px rgba(167, 139, 250, 0.24);
}

.btn-ffmpeg.done {
  background: linear-gradient(90deg, #22c55e, #14b8a6);
}

.btn-ffmpeg.error {
  background: linear-gradient(90deg, #f97316, #ef4444);
}

.license-panel {
  width: 100%;
  border-radius: 18px;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.license-label {
  font-size: 12px;
  color: var(--muted);
  font-weight: 700;
  white-space: nowrap;
}

.license-input-wrap {
  display: flex;
  align-items: center;
  flex: 1;
}

.license-input-wrap input {
  flex: 1;
  height: 38px;
  border: 1px solid rgba(148, 163, 184, 0.35);
  border-right: none;
  border-radius: 12px 0 0 12px;
  padding: 0 12px;
  font-size: 14px;
  background: rgba(255, 255, 255, 0.92);
  color: #0f172a;
  outline: none;
}

.license-input-wrap input:focus {
  border-color: rgba(139, 92, 246, 0.6);
}

.btn-eye {
  width: 38px;
  height: 38px;
  border-radius: 0 12px 12px 0;
  border: 1px solid rgba(148, 163, 184, 0.35);
  border-left: none;
  background: rgba(255, 255, 255, 0.92);
}

.btn-save {
  height: 38px;
  border-radius: 12px;
  padding: 0 16px;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(90deg, var(--tone-1), var(--tone-2), var(--tone-3));
}

.license-status {
  min-width: 90px;
  text-align: right;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
}

.visibility-settings {
  width: 100%;
  border-radius: 16px;
  background: var(--surface-strong);
  border: 1px solid rgba(255, 255, 255, 0.62);
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.07);
  padding: 12px;
}

.visibility-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  font-size: 13px;
  font-weight: 700;
}

.visibility-hint {
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
}

.visibility-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.visibility-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.28);
  background: #fff;
  font-size: 12px;
}

.visibility-item.hidden {
  opacity: 0.5;
}

.tools-panel {
  border-radius: 22px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

.tools-head {
  margin-bottom: 10px;
}

.scroll-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 4px;
}

.scroll-body::-webkit-scrollbar {
  width: 8px;
}

.scroll-body::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(139, 92, 246, 0.32);
}

.grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
}

.step-header {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 8px 2px 4px;
}

.step-header::after {
  content: '';
  height: 1px;
  flex: 1;
  background: rgba(148, 163, 184, 0.35);
}

.step-badge,
.step-badge-main,
.step-badge-sub {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  color: #334155;
  background: #fff;
  border: 1px solid rgba(148, 163, 184, 0.32);
}

.step-badge-num {
  width: 24px;
  height: 24px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  color: #334155;
  border: 1px solid rgba(148, 163, 184, 0.35);
  background: #fff;
}

.step-sub-title {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  color: #7c3aed;
  background: rgba(124, 58, 237, 0.12);
  border: 1px solid rgba(124, 58, 237, 0.35);
}

.card {
  border-radius: 22px;
  border: 1px solid rgba(148, 163, 184, 0.24);
  background: rgba(255, 255, 255, 0.76);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.07);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  grid-column: span 3;
}

.card-main {
  grid-column: span 2;
}

.card-sub {
  grid-column: span 3;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 44px rgba(15, 23, 42, 0.1);
}

.card-top {
  display: flex;
  gap: 12px;
  align-items: center;
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.26);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.card-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.card-name {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.card-info-row {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.card-info {
  font-size: 11px;
  font-weight: 600;
}

.card-badge {
  font-size: 10px;
  font-weight: 700;
  border-radius: 999px;
  padding: 2px 8px;
}

.card-desc {
  color: #475569;
  font-size: 13px;
  line-height: 1.6;
  min-height: 40px;
}

.card-notice {
  border-radius: 12px;
  border: 1px solid rgba(245, 158, 11, 0.42);
  background: rgba(254, 243, 199, 0.72);
  color: #b45309;
  padding: 9px 10px;
  font-size: 12px;
  line-height: 1.45;
  font-weight: 600;
}

.card-divider {
  display: none;
}

.card-btns {
  display: flex;
  gap: 8px;
  align-items: stretch;
  margin-top: auto;
}

.btn-flat,
.btn-action {
  height: 38px;
  border-radius: 999px;
  padding: 0 12px;
  font-size: 12px;
  font-weight: 700;
  font-family: inherit;
  border: none;
  cursor: pointer;
  width: auto;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.btn-flat {
  background: #fff;
  color: #334155;
  border: 1px solid rgba(148, 163, 184, 0.34);
  flex: 1;
}

.btn-flat:hover {
  background: #f8fafc;
}

.btn-action {
  margin-left: auto;
  color: #fff;
  background: linear-gradient(90deg, var(--tone-1), var(--tone-2), var(--tone-3));
  min-width: 156px;
}

.btn-action.download {
  color: #fff;
}

.btn-action.busy {
  background: #94a3b8;
}

.card-status {
  min-height: 14px;
  text-align: right;
  font-size: 11px;
  font-weight: 600;
  color: #64748b;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.46);
  backdrop-filter: blur(5px);
  z-index: 100;
  padding: 12px;
}

.modal-overlay.open {
  display: flex;
}

.modal {
  width: 520px;
  max-width: 94vw;
  border-radius: 22px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.68);
  box-shadow: 0 26px 64px rgba(15, 23, 42, 0.22);
}

.modal-wide {
  width: min(1080px, 96vw);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.3);
  font-size: 15px;
  font-weight: 700;
}

.modal-close {
  width: 30px;
  height: 30px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.35);
  background: #fff;
  font-size: 14px;
}

.guide-tabs {
  display: flex;
  gap: 6px;
  padding: 10px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.26);
  overflow-x: auto;
}

.guide-tab {
  height: 34px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.32);
  background: #fff;
  color: #334155;
  padding: 0 12px;
  font-size: 12px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
}

.guide-tab.active {
  color: #fff;
  border: none;
  background: linear-gradient(90deg, var(--tone-1), var(--tone-2), var(--tone-3));
}

.modal-body {
  max-height: 74vh;
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.guide-panel {
  display: none;
  flex-direction: column;
  gap: 10px;
}

.guide-panel.active {
  display: flex;
}

.guide-section {
  border-radius: 14px;
  border: 1px solid rgba(148, 163, 184, 0.26);
  background: rgba(255, 255, 255, 0.92);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.guide-title {
  font-size: 13px;
  font-weight: 700;
  color: #1e293b;
}

.guide-text {
  font-size: 12.5px;
  line-height: 1.65;
  color: #334155;
}

.guide-tip {
  border-color: rgba(14, 165, 233, 0.36) !important;
  background: rgba(239, 246, 255, 0.96) !important;
}

.guide-img {
  width: 100%;
  border-radius: 14px;
  border: 1px solid rgba(148, 163, 184, 0.28);
}

.guide-video-wrap {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.28);
}

.guide-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.notice-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  align-items: flex-start;
  justify-content: center;
  padding-top: 46px;
  background: rgba(15, 23, 42, 0.42);
  backdrop-filter: blur(4px);
}

.notice-overlay.open {
  display: flex;
}

.notice-modal {
  width: 500px;
  max-width: 92vw;
  border-radius: 18px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.72);
  box-shadow: 0 26px 64px rgba(15, 23, 42, 0.24);
}

.notice-glow {
  height: 3px;
  background: linear-gradient(90deg, var(--tone-1), var(--tone-2), var(--tone-3));
}

.notice-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 16px 10px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.24);
}

.notice-title {
  font-size: 15px;
  font-weight: 700;
  flex: 1;
}

.notice-badge {
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(90deg, var(--tone-1), var(--tone-2));
}

.notice-body {
  max-height: 52vh;
  overflow-y: auto;
  padding: 14px 16px;
  font-size: 13px;
  line-height: 1.7;
  color: #1e293b;
}

.notice-loading {
  color: var(--muted);
}

.notice-link {
  color: #7c3aed;
  text-decoration: underline;
}

.notice-body .n-heading {
  font-size: 14px;
  font-weight: 700;
  margin: 10px 0 6px;
}

.notice-body .n-line {
  border-left: 2px solid rgba(124, 58, 237, 0.46);
  background: rgba(248, 250, 252, 0.85);
  border-radius: 0 8px 8px 0;
  padding: 8px 10px;
  margin-bottom: 6px;
}

.notice-body .n-warn {
  border-left-color: rgba(234, 88, 12, 0.7);
  background: rgba(255, 237, 213, 0.84);
}

.notice-footer {
  display: flex;
  gap: 8px;
  padding: 12px 16px 14px;
  border-top: 1px solid rgba(148, 163, 184, 0.24);
}

.btn-notice-skip,
.btn-notice-close {
  height: 36px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  font-family: inherit;
}

.btn-notice-skip {
  flex: 1;
  color: #334155;
  background: #fff;
  border: 1px solid rgba(148, 163, 184, 0.32);
}

.btn-notice-close {
  padding: 0 20px;
  color: #fff;
  background: linear-gradient(90deg, var(--tone-1), var(--tone-2), var(--tone-3));
}

.btn-primary {
  height: 38px;
  border-radius: 999px;
  padding: 0 16px;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(90deg, var(--tone-1), var(--tone-2), var(--tone-3));
}

.page-footer {
  border-radius: 16px;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
}

.footer-contact {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-left {
  font-size: 13px;
  font-weight: 600;
  color: #475569;
}

.footer-telegram {
  font-size: 14px;
  font-weight: 700;
  color: #7c3aed;
  text-decoration: none;
}

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

@media (max-width: 980px) {
  .header {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .header-right {
    flex-wrap: wrap;
  }

  .btn-playlist {
    width: 100%;
  }

  .license-panel {
    flex-wrap: wrap;
  }

  .license-status {
    min-width: 0;
    width: 100%;
    text-align: left;
  }

  .app-shell {
    min-height: auto;
  }
}

@media (max-width: 640px) {
  body {
    padding: 12px 10px 16px;
  }

  .header-left,
  .header-right,
  .hero-actions {
    width: 100%;
  }

  .header-right {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .theme-switcher,
  .theme-select,
  .btn-guide,
  .btn-playlist,
  .btn-expert,
  .btn-ffmpeg,
  .tools-count {
    width: 100%;
    justify-content: center;
  }

  .hero {
    text-align: left;
  }

  .hero-title {
    font-size: clamp(30px, 10vw, 40px);
  }

  .hero-actions {
    justify-content: flex-start;
  }

  .license-panel {
    padding: 10px;
  }

  .license-input-wrap,
  .btn-save {
    width: 100%;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .card,
  .card-main,
  .card-sub {
    grid-column: 1 / -1;
  }

  .card-btns {
    display: flex;
    flex-direction: column;
  }

  .btn-flat,
  .btn-action {
    width: 100%;
    margin-left: 0;
  }

  .modal-overlay {
    align-items: flex-end;
    padding: 8px;
  }

  .modal,
  .modal-wide,
  .notice-modal {
    width: 100%;
    max-width: 100%;
    border-radius: 18px 18px 0 0;
  }

  .notice-overlay {
    align-items: flex-end;
    padding: 8px 8px 0;
  }

  .notice-footer {
    flex-direction: column;
  }
}