:root {
  --radius: 0.5rem;
  --line: 0.0625rem;
  --page-max: 72rem;
  --control-max: 52rem;
  --side-panel: 21rem;
  --header-height: 3.65rem;
  --shadow: 0 1.8rem 5rem rgba(0, 0, 0, 0.38);
  --shadow-soft: 0 0.8rem 2.2rem rgba(0, 0, 0, 0.22);
  --shadow-inset: inset 0 0.0625rem 0 rgba(255, 255, 255, 0.16);
  --font-main: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'SF Mono', 'JetBrains Mono', 'Menlo', 'Monaco', 'Consolas', monospace;
  --color-bg: #08080a;
  --color-card: rgba(30, 30, 33, 0.84);
  --color-card-strong: rgba(45, 45, 49, 0.92);
  --color-card-subtle: rgba(255, 255, 255, 0.07);
  --color-fg: #f5f5f7;
  --color-muted: #86868b;
  --color-border: rgba(255, 255, 255, 0.12);
  --color-border-strong: rgba(255, 255, 255, 0.2);
  --color-input-bg: rgba(255, 255, 255, 0.07);
  --color-input-fg: #f5f5f7;
  --color-input-focus: rgba(255, 255, 255, 0.1);
  --color-button-bg: #f5f5f7;
  --color-button-hover: #ffffff;
  --color-button-fg: #1d1d1f;
  --color-focus: #d2d2d7;
  --color-focus-ring: rgba(210, 210, 215, 0.18);
  --color-loader: #d2d2d7;
  --color-error: #ff9f9f;
  --color-warning: #d6c68a;
  --color-topbar: rgba(0, 0, 0, 0.72);
  --input-shadow: 0 0.75rem 1.7rem rgba(0, 0, 0, 0.18);
  --transition: .18s cubic-bezier(.2,.8,.2,1);
}

[data-theme="light"] {
  --shadow: 0 1.8rem 4.5rem rgba(0, 0, 0, 0.13);
  --shadow-soft: 0 0.8rem 2.2rem rgba(0, 0, 0, 0.08);
  --shadow-inset: inset 0 0.0625rem 0 rgba(255, 255, 255, 0.9);
  --color-bg: #f5f5f7;
  --color-card: rgba(255, 255, 255, 0.9);
  --color-card-strong: rgba(255, 255, 255, 0.98);
  --color-card-subtle: rgba(0, 0, 0, 0.04);
  --color-fg: #1d1d1f;
  --color-muted: #6e6e73;
  --color-border: rgba(0, 0, 0, 0.1);
  --color-border-strong: rgba(0, 0, 0, 0.18);
  --color-input-bg: rgba(255, 255, 255, 0.9);
  --color-input-fg: #1d1d1f;
  --color-input-focus: #ffffff;
  --color-button-bg: #1d1d1f;
  --color-button-hover: #000000;
  --color-button-fg: #ffffff;
  --color-focus: #6e6e73;
  --color-focus-ring: rgba(110, 110, 115, 0.16);
  --color-loader: #6e6e73;
  --color-error: #a03a3a;
  --color-warning: #7a6424;
  --color-topbar: rgba(245, 245, 247, 0.78);
  --input-shadow: 0 0.75rem 1.7rem rgba(0, 0, 0, 0.06);
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  width: 100vw;
  color: var(--color-fg);
  background: var(--color-bg);
  font-family: var(--font-main);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  width: 100vw;
  padding: calc(var(--header-height) + clamp(1rem, 4vh, 2.4rem)) clamp(0.9rem, 2.6vw, 2.2rem) 1.4rem;
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  box-sizing: border-box;
  padding: 0 clamp(1rem, 3vw, 2.5rem);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-topbar);
  -webkit-backdrop-filter: blur(1rem);
  backdrop-filter: blur(1rem);
  border-bottom: var(--line) solid var(--color-border);
  z-index: 10;
}

.topbar-inner {
  width: min(100%, var(--page-max));
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: lowercase;
}

.brand-name {
  font-size: 1.06rem;
  color: var(--color-fg);
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.auth-logout {
  min-height: 2.2rem;
  padding: 0.4rem 0.7rem;
  color: var(--color-muted);
  background: transparent;
  border-color: var(--color-border);
  border-radius: 999rem;
  font-size: 0.8rem;
  cursor: pointer;
}

.auth-logout:hover,
.auth-logout:focus-visible {
  color: var(--color-fg);
  border-color: var(--color-border-strong);
  background: var(--color-card-subtle);
}

.theme-toggle {
  position: relative;
  width: 2.2rem;
  height: 2.2rem;
  min-width: 2.2rem;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-fg);
  background: var(--color-card);
  border: var(--line) solid var(--color-border);
  border-radius: 999rem;
  box-shadow: none;
  cursor: pointer;
  user-select: none;
  opacity: .96;
  transition: background var(--transition), border-color var(--transition), color var(--transition), transform .12s;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  border-color: var(--color-border-strong);
  background: var(--color-card-subtle);
  box-shadow: none;
}

.theme-toggle:active {
  transform: scale(0.96);
}

.theme-toggle .icon {
  width: 1.2em;
  height: 1.2em;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.05em;
  line-height: 1;
  pointer-events: none;
}

.app-shell {
  width: min(100%, var(--page-max));
  margin: 0 auto;
  display: grid;
  align-items: start;
  justify-items: center;
  gap: 0.85rem;
}

.login-body {
  display: grid;
  place-items: center;
  padding-top: calc(var(--header-height) + 1.4rem);
}

.login-shell {
  width: min(100%, 24rem);
}

.login-card {
  display: grid;
  gap: 1rem;
  padding: clamp(1rem, 4vw, 1.5rem);
  color: var(--color-fg);
  background: var(--color-card);
  border: var(--line) solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft), var(--shadow-inset);
}

.login-copy {
  display: grid;
  gap: 0.35rem;
}

.login-copy h1,
.login-copy p {
  margin: 0;
}

.login-copy h1 {
  font-size: 1.15rem;
}

.login-copy p {
  color: var(--color-muted);
  font-size: 0.88rem;
  line-height: 1.45;
}

.login-form {
  display: grid;
  gap: 0.65rem;
}

.login-form label {
  color: var(--color-muted);
  font-size: 0.86rem;
  font-weight: 640;
}

.login-form button {
  color: var(--color-button-fg);
  background: var(--color-button-bg);
  border-color: transparent;
  cursor: pointer;
  font-weight: 650;
}

.login-form button:hover,
.login-form button:focus-visible {
  background: var(--color-button-hover);
}

body.has-player .app-shell {
  justify-items: stretch;
}

.source-panel,
.panel,
.warning,
.player-stage {
  color: var(--color-fg);
  background: var(--color-card);
  border: var(--line) solid var(--color-border);
  border-radius: var(--radius);
  box-sizing: border-box;
  -webkit-backdrop-filter: blur(1.4rem);
  backdrop-filter: blur(1.4rem);
}

.source-panel {
  width: min(100%, var(--control-max));
  justify-self: center;
  position: relative;
  padding: clamp(0.85rem, 1.6vw, 1.1rem);
  box-shadow: var(--shadow-soft), var(--shadow-inset);
}

body.has-player .source-panel {
  width: 100%;
  justify-self: stretch;
  max-width: none;
  box-shadow: none;
}

.downloads-panel {
  width: min(100%, var(--control-max));
  justify-self: center;
  display: grid;
  gap: 0.65rem;
}

body.has-player .downloads-panel {
  width: 100%;
  justify-self: stretch;
  max-width: none;
}

.downloads-head {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0.7rem;
}

.downloads-head h2 {
  margin: 0;
  color: var(--color-fg);
  font-size: 0.98rem;
  font-weight: 720;
  line-height: 1.2;
}

.downloads-list {
  display: grid;
  gap: 0;
  border-top: var(--line) solid var(--color-border);
}

.download-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(11.5rem, max-content) 2.45rem;
  align-items: center;
  gap: 0.7rem;
  padding: 0.7rem 0;
  border-bottom: var(--line) solid var(--color-border);
  cursor: pointer;
  outline: none;
  transition: color var(--transition), background var(--transition);
}

.download-row:hover .download-title,
.download-row:focus-visible .download-title {
  color: var(--color-button-hover);
}

.download-row:focus-visible {
  box-shadow: 0 0 0 0.1875rem var(--color-focus-ring);
}

.download-main {
  min-width: 0;
  display: grid;
  gap: 0.25rem;
}

.download-title-row {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.download-title {
  flex: 0 1 auto;
  min-width: 0;
  overflow: hidden;
  color: var(--color-fg);
  font-size: 0.92rem;
  font-weight: 670;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.download-subtitle {
  min-width: 0;
  overflow: hidden;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.download-meta {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-muted);
  font-size: 0.82rem;
  line-height: 1.25;
  white-space: nowrap;
}

.download-meta-text {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.download-actions {
  display: grid;
  grid-template-columns: 2.45rem;
  align-items: stretch;
  justify-self: end;
  gap: 0.35rem;
}

.download-action {
  width: 100%;
  min-height: 2.45rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.45rem 0.55rem;
  font-size: 0.78rem;
  white-space: nowrap;
}

.download-menu {
  position: relative;
  display: inline-flex;
}

.download-expiry-menu {
  flex: 0 0 auto;
}

.download-expiry-extend {
  width: 1.45rem;
  min-width: 1.45rem;
  height: 1.45rem;
  min-height: 1.45rem;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  background: var(--color-card-subtle);
  border-color: var(--color-border);
  border-radius: 999rem;
  font-size: 0.98rem;
  font-weight: 760;
  line-height: 1;
  box-shadow: none;
}

.download-expiry-extend:hover,
.download-expiry-extend:focus-visible {
  color: var(--color-fg);
  background: var(--color-card-subtle);
  border-color: var(--color-border-strong);
  transform: none;
  box-shadow: none;
}

.download-action.delete {
  color: var(--color-error);
  background: transparent;
  border-color: var(--color-border);
}

.download-action.icon-only {
  width: 2.45rem;
  min-width: 2.45rem;
  height: 2.45rem;
  min-height: 2.45rem;
  padding: 0;
  justify-self: stretch;
}

.download-action.icon-only::before {
  content: "";
  display: block;
  width: 1.05rem;
  height: 1.05rem;
  background: currentcolor;
}

.download-action.delete::before {
  -webkit-mask: url("/assets/trash.svg") center / contain no-repeat;
  mask: url("/assets/trash.svg") center / contain no-repeat;
}

.download-extend-menu {
  position: absolute;
  top: calc(100% + 0.35rem);
  right: 0;
  z-index: 20;
  min-width: 8.2rem;
  display: grid;
  gap: 0.12rem;
  padding: 0.25rem;
  background: var(--color-card-strong);
  border: var(--line) solid var(--color-border);
  border-radius: 0.55rem;
  box-shadow: var(--shadow-soft);
}

.download-extend-menu[hidden] {
  display: none;
}

.download-menu-item {
  width: 100%;
  min-height: 2.1rem;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 0.42rem 0.6rem;
  color: var(--color-fg);
  background: transparent;
  border: 0;
  border-radius: 0.42rem;
  font-size: 0.82rem;
  line-height: 1.2;
  text-align: left;
  box-shadow: none;
}

.download-menu-item:hover,
.download-menu-item:focus-visible {
  background: var(--color-card-subtle);
  transform: none;
  box-shadow: none;
}

.downloads-empty {
  padding: 0.8rem 0;
  color: var(--color-muted);
  font-size: 0.86rem;
}

.source-form {
  position: relative;
  z-index: 1;
  display: grid;
  align-items: start;
  gap: 0.6rem;
}

.source-label {
  color: var(--color-muted);
  font-size: 0.86rem;
  font-weight: 640;
  letter-spacing: 0;
  line-height: 1.2;
}

.source-form .msg {
  grid-column: auto;
}

.workspace {
  width: min(100%, var(--control-max));
  justify-self: center;
  display: grid;
  align-items: start;
  gap: 0.8rem;
}

body.has-player .workspace {
  width: 100%;
  justify-self: stretch;
  grid-template-columns: minmax(16rem, var(--side-panel)) minmax(0, 1fr);
  gap: 0.85rem;
}

.control-stack {
  display: grid;
  align-items: start;
  gap: 0.75rem;
}

.panel,
.player-stage {
  padding: 0.85rem;
  box-shadow: var(--shadow-soft), var(--shadow-inset);
}

@keyframes fadein {
  from {
    opacity: 0;
    transform: translateY(0.625rem);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.step {
  display: grid;
  gap: 0.7rem;
  animation: fadein .42s cubic-bezier(.4,.14,.24,1) 1;
}

.step[style*="display: none"] {
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s;
}

.input-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 5.8rem;
  gap: 0.55rem;
  width: 100%;
  align-items: stretch;
}

.input-style,
input,
select,
button {
  min-height: 2.45rem;
  box-sizing: border-box;
  padding: 0.58rem 0.78rem;
  color: var(--color-input-fg);
  background: var(--color-input-bg);
  border: var(--line) solid var(--color-border);
  border-radius: 0.55rem;
  box-shadow: none;
  outline: none;
  font-family: inherit;
  font-size: 0.94rem;
  line-height: 1.2;
  transition: border var(--transition), background var(--transition), color var(--transition), box-shadow var(--transition), transform .1s;
}

#magnet {
  font-family: var(--font-mono);
  font-size: 0.88rem;
}

.input-style:focus,
input:focus,
select:focus {
  color: var(--color-input-fg);
  background: var(--color-input-focus);
  border-color: var(--color-focus);
  box-shadow: 0 0 0 0.1875rem var(--color-focus-ring), var(--input-shadow);
}

select.input-style {
  padding-right: 1.8rem;
}

select {
  min-width: 0;
  max-width: 100%;
  color: var(--color-input-fg);
  background: var(--color-input-bg);
  overflow-x: auto;
  text-overflow: ellipsis;
  white-space: nowrap;
}

button.input-style,
button {
  min-width: 0;
  color: var(--color-button-fg);
  background: var(--color-button-bg);
  border: var(--line) solid transparent;
  cursor: pointer;
  font-weight: 650;
  letter-spacing: 0;
  box-shadow: none;
}

button:hover,
button:focus-visible {
  background: var(--color-button-hover);
  transform: translateY(-0.0625rem);
  box-shadow: 0 0.75rem 1.5rem rgba(0, 0, 0, 0.12);
}

.player-stage {
  gap: 0.65rem;
  box-shadow: var(--shadow);
}

#video {
  width: 100%;
  max-width: 100%;
  max-height: 64vh;
  min-height: 18vw;
  aspect-ratio: 16/9;
  object-fit: contain;
  background: #000000;
  border: var(--line) solid var(--color-border);
  border-radius: 0.5rem;
  box-shadow: 0 1rem 2.4rem rgba(0, 0, 0, 0.2);
  outline: none;
  opacity: 0;
  transition: box-shadow .2s, opacity .22s;
  animation: fadein .58s cubic-bezier(.4,.14,.24,1) 1 forwards;
  animation-delay: .05s;
}

#video[autoplay] {
  opacity: 1;
}

.msg {
  min-height: 1.1em;
  margin-top: 0;
  color: var(--color-muted);
  font-size: 0.85rem;
  letter-spacing: 0;
  line-height: 1.35;
  opacity: 0.96;
  transition: color .18s, opacity .18s;
}

.msg.error {
  color: var(--color-error);
  font-weight: 650;
  opacity: 1;
  animation: shake .18s 1;
}

.loader {
  display: inline-block;
  width: 1.15em;
  height: 1.15em;
  margin-right: 0.52em;
  vertical-align: middle;
  border: 0.125rem solid var(--color-loader);
  border-top: 0.125rem solid transparent;
  border-radius: 50%;
  animation: spin .88s linear infinite;
}

.warning {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  padding: 0.8rem 0.9rem;
  color: var(--color-warning);
  background: var(--color-card);
  border-left: 0.1875rem solid var(--color-warning);
  font-size: 0.88rem;
  animation: fadein .34s cubic-bezier(.35,.7,.13,1) 1;
}

.warning-inner {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.7rem;
}

.warning-icon {
  display: flex;
  width: 1.55rem;
  height: 1.55rem;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  border: var(--line) solid currentColor;
  border-radius: 999rem;
  font-size: 0.9rem;
  font-weight: 800;
  line-height: 1;
}

.warning-text {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.warning-text strong {
  color: var(--color-warning);
  font-weight: 650;
}

.track-row {
  display: grid;
  grid-template-columns: 5.2rem minmax(0, 1fr);
  align-items: center;
  gap: 0.6rem;
}

.track-row label {
  color: var(--color-muted);
  font-size: 0.86rem;
  font-weight: 560;
  white-space: nowrap;
}

.track-row select {
  flex: 1;
}

.badge {
  display: inline-flex;
  align-items: center;
  margin-left: 0.4rem;
  padding: 0.2rem 0.58rem;
  color: var(--color-fg);
  background: var(--color-card-subtle);
  border: var(--line) solid var(--color-border);
  font-size: 0.82rem;
}

.delay-controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: center;
  justify-self: center;
  width: min(100%, 13.5rem);
  gap: 0.35rem;
}

.delay-value {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  min-height: 2.45rem;
  padding: 0.58rem 0.35rem;
  box-sizing: border-box;
  color: var(--color-fg);
  background: var(--color-card-subtle);
  border: var(--line) solid var(--color-border);
  border-radius: 0.46rem;
  font-weight: 720;
  font-size: 0.9rem;
  line-height: 1.2;
  text-align: center;
  white-space: nowrap;
}

.small-btn {
  width: 100%;
  min-width: 0;
  padding: 0.58rem 0.35rem;
  font-size: 0.88rem;
  white-space: nowrap;
}

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

@keyframes shake {
  0% {
    transform: translateX(0);
  }
  30% {
    transform: translateX(-0.25rem);
  }
  60% {
    transform: translateX(0.25rem);
  }
  100% {
    transform: translateX(0);
  }
}

@media (max-width: 900px) {
  body {
    padding: calc(var(--header-height) + 1rem) 0.8rem 1rem;
  }

  body.has-player .workspace {
    grid-template-columns: 1fr;
  }

  .source-panel,
  .downloads-panel,
  .workspace {
    width: 100%;
  }

  .panel,
  .player-stage,
  .source-panel {
    padding: 0.75rem;
  }

  .download-row {
    grid-template-columns: minmax(0, 1fr) 2.45rem;
    gap: 0.55rem;
  }

  .download-meta {
    grid-column: 1 / 2;
  }

  .download-actions {
    grid-column: 2 / 3;
    grid-row: 1 / 3;
    align-self: center;
    grid-template-columns: 2.45rem;
  }

  #video {
    max-height: 48vw;
  }
}

@media (max-width: 500px) {
  :root {
    --header-height: 3.45rem;
  }

  body {
    padding-right: 0.55rem;
    padding-left: 0.55rem;
  }

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

  .source-form {
    grid-template-columns: 1fr;
    gap: 0.65rem;
  }

  .source-form .msg {
    grid-column: auto;
  }

  .download-row {
    grid-template-columns: minmax(0, 1fr) 2.45rem;
  }

  .track-row {
    grid-template-columns: 1fr;
    align-items: stretch;
    gap: 0.45rem;
  }

  .delay-controls {
    width: 100%;
  }

  .delay-controls .small-btn,
  .delay-value {
    width: 100%;
  }

  #video {
    max-height: 54vw;
    min-height: 14vw;
  }
}