:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bg: #07090d;
  --panel: rgba(14, 20, 29, 0.82);
  --panel-solid: #101722;
  --panel-raised: #151f2d;
  --ink: #f7fbff;
  --muted: #93a4b7;
  --line: rgba(174, 194, 216, 0.16);
  --accent: #2ff0c8;
  --accent-2: #7c5cff;
  --blue: #3b82f6;
  --warn: #ff5d73;
  --shadow: rgba(0, 0, 0, 0.46);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(115deg, rgba(47, 240, 200, 0.14), transparent 34%),
    linear-gradient(245deg, rgba(124, 92, 255, 0.16), transparent 36%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.03) 0 1px, transparent 1px 72px),
    var(--bg);
  color: var(--ink);
}

.download-body {
  background:
    radial-gradient(circle at 50% -10%, rgba(47, 240, 200, 0.22), transparent 34%),
    radial-gradient(circle at 100% 12%, rgba(59, 130, 246, 0.18), transparent 32%),
    linear-gradient(135deg, rgba(124, 92, 255, 0.12), transparent 42%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.028) 0 1px, transparent 1px 84px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.024) 0 1px, transparent 1px 84px),
    var(--bg);
}

button,
input,
a {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  border: 0;
}

.shell {
  width: min(1120px, calc(100% - 28px));
  margin: 0 auto;
  padding: 34px 0;
}

.download-shell {
  display: grid;
  place-items: center;
  width: min(100% - 28px, 760px);
  min-height: 100vh;
  margin: 0 auto;
  padding: 34px 0;
}

.workspace {
  display: grid;
  gap: 18px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0 8px;
}

.brand-block {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  column-gap: 22px;
  align-items: center;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 66px;
  height: 66px;
  overflow: hidden;
  border: 1px solid rgba(47, 240, 200, 0.42);
  border-radius: 50%;
  background: #ffffff;
  box-shadow:
    0 22px 60px rgba(47, 240, 200, 0.18),
    0 0 0 6px rgba(255, 255, 255, 0.045);
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

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

.live-pill {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 13px;
  background: rgba(255, 255, 255, 0.045);
  color: var(--accent);
  font-size: 0.86rem;
  font-weight: 850;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  max-width: 840px;
  font-size: clamp(2.05rem, 5.7vw, 4.6rem);
  line-height: 0.92;
  letter-spacing: 0;
  text-wrap: balance;
}

.icon-button,
.delete-button {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-raised);
  color: var(--ink);
  cursor: pointer;
  box-shadow: 0 10px 26px var(--shadow);
}

.icon-button:hover,
.delete-button:hover {
  border-color: rgba(245, 248, 251, 0.32);
}

.icon-button svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.upload-zone,
.files-panel,
.download-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 30px 90px var(--shadow);
  backdrop-filter: blur(22px);
}

.download-panel {
  display: grid;
  gap: 22px;
  width: 100%;
  position: relative;
  overflow: hidden;
  padding: 24px;
  border-color: rgba(224, 242, 254, 0.18);
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.11), rgba(255, 255, 255, 0.035) 44%, rgba(47, 240, 200, 0.055)),
    rgba(11, 17, 25, 0.86);
}

.download-panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--blue), var(--accent-2));
}

.download-brand {
  display: grid;
  grid-template-columns: 66px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
}

.download-brand .brand-mark {
  grid-row: auto;
  box-shadow:
    0 18px 46px rgba(47, 240, 200, 0.2),
    0 0 0 6px rgba(255, 255, 255, 0.055);
}

.download-brand h1 {
  font-size: clamp(1.45rem, 3.2vw, 2.25rem);
  line-height: 1.08;
}

.download-card {
  display: grid;
  gap: 16px;
  padding: 16px;
  border: 1px solid rgba(224, 242, 254, 0.18);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(47, 240, 200, 0.1), transparent 38%),
    linear-gradient(315deg, rgba(124, 92, 255, 0.12), transparent 42%),
    rgba(7, 12, 19, 0.72);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.09),
    0 18px 58px rgba(0, 0, 0, 0.28);
}

.download-card.unavailable {
  justify-items: center;
  text-align: center;
}

.download-file {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  min-height: 94px;
}

.download-file.unavailable {
  align-items: flex-start;
}

.download-file-icon {
  display: grid;
  place-items: center;
  width: 74px;
  height: 88px;
  border: 1px solid rgba(224, 242, 254, 0.2);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.16), transparent 42%),
    linear-gradient(135deg, var(--blue), var(--accent-2));
  color: white;
  box-shadow: 0 18px 34px rgba(59, 130, 246, 0.22);
}

.download-file-icon span {
  display: inline-grid;
  place-items: center;
  min-width: 44px;
  min-height: 28px;
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 8px;
  background: rgba(6, 10, 18, 0.22);
  font-size: 0.82rem;
  font-weight: 950;
}

.download-label {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.download-file h2 {
  overflow-wrap: anywhere;
  font-size: clamp(1.05rem, 2.6vw, 1.45rem);
  line-height: 1.25;
}

.download-file p:not(.download-label),
.download-note {
  margin-top: 6px;
  color: var(--muted);
  line-height: 1.5;
}

.download-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.download-meta span {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(224, 242, 254, 0.15);
  border-radius: 8px;
  padding: 0 12px;
  background: rgba(255, 255, 255, 0.055);
  color: #dbeafe;
  font-size: 0.92rem;
  font-weight: 750;
  text-align: center;
  overflow-wrap: anywhere;
}

.download-page-button,
.download-secondary-button {
  width: 100%;
  min-height: 60px;
}

.download-page-button {
  gap: 10px;
  font-size: 1rem;
}

.primary-button.download-page-button {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #06110f;
  min-height: 60px;
  border-color: transparent;
  box-shadow: 0 14px 30px rgba(47, 240, 200, 0.22);
}

.primary-button.download-page-button:hover {
  background: linear-gradient(135deg, #37dfc0, var(--accent-2));
}

.download-page-button svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.download-qr-block {
  display: flex;
  justify-content: center;
}

.download-qr {
  display: grid;
  place-items: center;
  width: min(100%, 240px);
  aspect-ratio: 1;
  border: 1px solid rgba(224, 242, 254, 0.18);
  border-radius: 8px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 16px 38px rgba(0, 0, 0, 0.22);
}

.download-qr canvas {
  width: 100%;
  height: auto;
  display: block;
  image-rendering: pixelated;
}

.download-secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.05);
  text-decoration: none;
}

.unavailable-copy h2 {
  font-size: clamp(1.3rem, 4vw, 1.8rem);
}

.download-secondary-button:hover {
  border-color: rgba(245, 248, 251, 0.32);
  background: rgba(255, 255, 255, 0.08);
}

.upload-zone {
  display: grid;
  gap: 14px;
  padding: 16px;
}

.drop-target {
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 176px;
  gap: 16px;
  border: 1px dashed rgba(47, 240, 200, 0.46);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(47, 240, 200, 0.16), rgba(124, 92, 255, 0.13)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.07), transparent);
  color: var(--ink);
  text-align: left;
  padding: 22px;
  cursor: pointer;
}

.drop-target:hover,
.drop-target.dragging {
  border-color: var(--accent);
  background:
    linear-gradient(135deg, rgba(47, 240, 200, 0.22), rgba(124, 92, 255, 0.18)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.09), transparent);
  transform: translateY(-1px);
}

.upload-mark,
.file-icon {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 50px;
  height: 50px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #06110f;
  font-weight: 900;
  font-size: 1.45rem;
  box-shadow: 0 14px 26px rgba(36, 198, 168, 0.22);
}

.drop-target strong {
  display: block;
  font-size: 1.22rem;
  line-height: 1.25;
  font-weight: 750;
}

.drop-target small {
  display: block;
  margin-top: 7px;
  color: var(--muted);
  font-size: 0.95rem;
}

.upload-footer,
.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

#selectedFile,
#fileCount {
  min-width: 0;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.primary-button,
.qr-button,
.copy-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0 14px;
  text-decoration: none;
  cursor: pointer;
  transition: transform 150ms ease, background 150ms ease, border-color 150ms ease;
}

.primary-button {
  background: linear-gradient(135deg, var(--accent), #78ffe4);
  color: #06110f;
  font-weight: 850;
  box-shadow: 0 14px 30px rgba(47, 240, 200, 0.18);
}

.primary-button:hover {
  background: #37dfc0;
  transform: translateY(-1px);
}

.primary-button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
  transform: none;
}

.progress {
  height: 6px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(154, 168, 182, 0.16);
}

.progress span {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--blue));
  transition: width 180ms ease;
}

.files-panel {
  padding: 16px;
}

.panel-heading {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.panel-heading h2 {
  font-size: 1rem;
}

.status {
  min-height: 24px;
  padding: 12px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.status.error {
  color: var(--warn);
}

.file-list {
  display: grid;
  gap: 10px;
  padding-top: 12px;
}

.file-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  min-height: 76px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.045), transparent),
    var(--panel-solid);
  padding: 12px;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.18);
}

.file-row:hover {
  border-color: rgba(47, 240, 200, 0.42);
  background: #172231;
  transform: translateY(-1px);
}

.file-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--blue), var(--accent-2));
  color: white;
  font-size: 1rem;
  box-shadow: 0 12px 22px rgba(79, 140, 255, 0.18);
}

.file-main {
  min-width: 0;
}

.file-main h3 {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.98rem;
}

.file-main p {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.86rem;
}

.file-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.qr-button,
.copy-button {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
}

.qr-button:hover,
.copy-button:hover {
  border-color: rgba(245, 248, 251, 0.32);
  background: rgba(255, 255, 255, 0.08);
}

.delete-button {
  color: var(--warn);
}

.qr-dialog,
.list-dialog,
.message-dialog {
  width: min(92vw, 420px);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  color: var(--ink);
  background: var(--panel-solid);
  box-shadow: 0 26px 90px var(--shadow);
}

.qr-dialog::backdrop,
.list-dialog::backdrop,
.message-dialog::backdrop {
  background: rgba(3, 7, 12, 0.72);
}

.list-dialog {
  width: min(94vw, 760px);
  max-height: min(82vh, 720px);
  overflow: hidden;
  padding: 0;
}

.dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px;
  border-bottom: 1px solid var(--line);
}

.dialog-header h2 {
  font-size: 1rem;
}

.dialog-header p {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.86rem;
}

.list-status {
  padding: 12px 16px 0;
}

.all-file-list {
  max-height: calc(min(82vh, 720px) - 116px);
  overflow: auto;
  padding: 12px 16px 16px;
}

.message-dialog {
  text-align: center;
}

.message-dialog h2 {
  margin-top: 12px;
  font-size: 1.12rem;
}

.message-dialog p {
  margin: 8px 0 18px;
  color: var(--muted);
  line-height: 1.5;
}

.message-dialog .primary-button {
  width: 100%;
}

.settings-dialog {
  text-align: left;
}

.settings-dialog h2 {
  margin: 0 0 16px;
}

.settings-dialog .primary-button {
  width: auto;
}

.field-label {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 800;
}

.number-input {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--ink);
  outline: none;
}

.number-input:focus {
  border-color: rgba(47, 240, 200, 0.56);
  box-shadow: 0 0 0 3px rgba(47, 240, 200, 0.11);
}

.settings-note {
  min-height: 42px;
  margin: 10px 0 16px;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.45;
}

.delete-dialog p {
  margin-bottom: 10px;
}

.delete-file-name {
  margin-bottom: 16px;
  border: 1px solid rgba(224, 242, 254, 0.16);
  border-radius: 8px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.055);
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.dialog-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.secondary-button,
.danger-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0 14px;
  font-weight: 850;
  cursor: pointer;
  transition: transform 150ms ease, background 150ms ease, border-color 150ms ease;
}

.secondary-button {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.05);
  color: var(--ink);
}

.secondary-button:hover {
  border-color: rgba(245, 248, 251, 0.32);
  background: rgba(255, 255, 255, 0.08);
}

.danger-button {
  background: linear-gradient(135deg, #ff5d73, #ff8a9a);
  color: #270207;
  box-shadow: 0 14px 30px rgba(255, 93, 115, 0.18);
}

.danger-button:hover {
  background: #ff6f82;
  transform: translateY(-1px);
}

.secondary-button:disabled,
.danger-button:disabled {
  cursor: not-allowed;
  opacity: 0.68;
  transform: none;
}

.message-icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin: 0 auto;
  border-radius: 8px;
  background: rgba(255, 93, 115, 0.14);
  color: var(--warn);
  font-size: 1.5rem;
  font-weight: 950;
}

.delete-message-icon {
  box-shadow: 0 0 0 6px rgba(255, 93, 115, 0.08);
}

.qr-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.qr-header h2 {
  font-size: 1rem;
}

.qr-canvas {
  display: grid;
  place-items: center;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
}

.qr-canvas canvas {
  width: min(100%, 340px);
  height: auto;
  display: block;
  image-rendering: pixelated;
}

.qr-link {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.84rem;
  overflow-wrap: anywhere;
}

@media (max-width: 720px) {
  .shell,
  .download-shell {
    width: min(100% - 20px, 1120px);
    padding: 18px 0;
  }

  .download-panel {
    padding: 18px;
  }

  .download-brand {
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 10px;
  }

  .download-brand h1 {
    font-size: clamp(1.35rem, 7vw, 1.9rem);
  }

  .download-card {
    padding: 14px;
  }

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

  .download-file-icon {
    width: 62px;
    height: 74px;
  }

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

  .topbar,
  .upload-footer,
  .panel-heading {
    align-items: flex-start;
  }

  .topbar {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 10px;
  }

  .brand-block {
    grid-template-columns: 52px minmax(0, 1fr);
    column-gap: 16px;
  }

  .brand-mark {
    width: 52px;
    height: 52px;
  }

  .live-pill {
    display: none;
  }

  .drop-target {
    min-height: 132px;
    padding: 16px;
  }

  .file-row {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .file-actions {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr 42px;
  }

  .qr-button,
  .copy-button {
    padding-inline: 10px;
  }
}