:root {
  color-scheme: light;
  --canvas: #f4f1ea;
  --surface: #fffdf8;
  --surface-strong: #ffffff;
  --ink: #1f2925;
  --ink-soft: #5f6b65;
  --line: #d9ddd4;
  --line-strong: #adb9ae;
  --moss: #2f6650;
  --moss-dark: #224b3c;
  --moss-pale: #e4eee7;
  --sand: #e8dfcf;
  --amber: #d99b44;
  --danger: #b54e42;
  --success: #2e7553;
  --shadow: 0 24px 70px rgba(48, 61, 53, 0.12);
  --radius-large: 28px;
  --radius-medium: 18px;
  --font-ui: "Avenir Next", "PingFang SC", "Noto Sans CJK SC",
    "Microsoft YaHei", sans-serif;
  --font-display: "Iowan Old Style", "Songti SC", "STSong", Georgia, serif;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--canvas);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 6%, rgba(217, 155, 68, 0.14), transparent 25rem),
    radial-gradient(circle at 95% 46%, rgba(47, 102, 80, 0.1), transparent 32rem),
    var(--canvas);
  font-family: var(--font-ui);
  -webkit-font-smoothing: antialiased;
}

button,
input {
  font: inherit;
}

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

button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(47, 102, 80, 0.35);
  outline-offset: 3px;
}

[hidden] {
  display: none !important;
}

.page-shell {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding-bottom: 64px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  border-bottom: 1px solid rgba(31, 41, 37, 0.12);
}

.brand {
  display: inline-flex;
  gap: 11px;
  align-items: center;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: var(--surface);
  background: var(--moss);
  border-radius: 14px;
  box-shadow: 0 8px 18px rgba(47, 102, 80, 0.18);
}

.brand-mark svg {
  width: 25px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.9;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 15px;
  letter-spacing: 0.02em;
}

.brand small {
  margin-top: 1px;
  color: var(--ink-soft);
  font-size: 11px;
}

.privacy-note,
.eyebrow,
.panel-kicker {
  color: var(--moss);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.privacy-note {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  letter-spacing: 0.08em;
}

main {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(480px, 1.2fr);
  gap: 54px 72px;
  padding-top: 72px;
}

.intro {
  align-self: start;
  position: sticky;
  top: 32px;
  padding-top: 24px;
}

.eyebrow {
  margin: 0 0 20px;
}

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

h1 {
  max-width: 9em;
  margin-bottom: 24px;
  font-family: var(--font-display);
  font-size: clamp(42px, 5.2vw, 68px);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 1.08;
}

.intro-copy {
  max-width: 27em;
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.85;
}

.workbench {
  overflow: hidden;
  background: rgba(255, 253, 248, 0.94);
  border: 1px solid rgba(173, 185, 174, 0.65);
  border-radius: var(--radius-large);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.auth-panel,
.upload-panel {
  padding: 30px;
}

.panel-heading {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}

.panel-heading h2 {
  margin: 2px 0 0;
  font-family: var(--font-display);
  font-size: 27px;
  font-weight: 600;
  letter-spacing: -0.025em;
}

.panel-kicker {
  margin: 0;
  letter-spacing: 0.1em;
}

.step-number {
  display: grid;
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  place-items: center;
  color: var(--moss);
  background: var(--moss-pale);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
}

.panel-action {
  margin-left: auto;
}

.auth-form label {
  display: inline-block;
  margin-bottom: 9px;
  font-size: 13px;
  font-weight: 700;
}

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

input[type="password"] {
  min-width: 0;
  height: 50px;
  padding: 0 16px;
  color: var(--ink);
  background: var(--surface-strong);
  border: 1px solid var(--line-strong);
  border-radius: 15px;
}

input[type="password"]:focus {
  border-color: var(--moss);
}

.form-message {
  min-height: 20px;
  margin: 10px 2px 0;
  color: var(--ink-soft);
  font-size: 12px;
}

.form-message.is-error {
  color: var(--danger);
}

.remember-control {
  display: flex !important;
  gap: 10px;
  align-items: flex-start;
  margin: 14px 2px 0 !important;
  cursor: pointer;
}

.remember-control input {
  flex: 0 0 auto;
  margin-top: 2px;
}

.remember-control strong,
.remember-control small {
  display: block;
}

.remember-control strong {
  color: var(--ink);
  font-size: 12px;
}

.remember-control small {
  margin-top: 3px;
  color: var(--ink-soft);
  font-size: 10px;
  font-weight: 500;
  line-height: 1.45;
}

.button {
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 14px;
  cursor: pointer;
  font-weight: 700;
  transition:
    background-color 160ms ease,
    border-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.button:not(:disabled):active {
  transform: translateY(1px);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

.button-primary {
  color: #fff;
  background: var(--moss);
  box-shadow: 0 8px 18px rgba(47, 102, 80, 0.17);
}

.button-primary:not(:disabled):hover {
  background: var(--moss-dark);
}

.button-secondary {
  color: var(--ink);
  background: var(--surface-strong);
  border-color: var(--line);
}

.button-secondary:not(:disabled):hover {
  border-color: var(--line-strong);
  background: #faf9f5;
}

.button-small {
  min-height: 38px;
  padding: 0 13px;
  border-radius: 12px;
  font-size: 12px;
}

.text-button {
  min-height: 40px;
  padding: 0 5px;
  color: var(--moss);
  background: transparent;
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
}

.text-button:disabled {
  cursor: not-allowed;
  opacity: 0.42;
}

.danger-text {
  color: var(--danger);
}

.drop-zone {
  display: flex;
  min-height: 334px;
  padding: 36px 24px 30px;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  text-align: center;
  background:
    linear-gradient(rgba(255, 253, 248, 0.75), rgba(255, 253, 248, 0.75)),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 23px,
      rgba(47, 102, 80, 0.07) 24px
    );
  border: 1px dashed var(--line-strong);
  border-radius: 22px;
  transition:
    border-color 160ms ease,
    background-color 160ms ease,
    transform 160ms ease;
}

.drop-zone.is-dragging {
  border-color: var(--moss);
  background-color: var(--moss-pale);
  transform: translateY(-2px);
}

.drop-zone h3 {
  margin-bottom: 8px;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
}

.drop-zone > p {
  margin-bottom: 21px;
  color: var(--ink-soft);
  font-size: 12px;
}

.desktop-hint {
  margin-top: 12px;
  color: var(--ink-soft);
  font-size: 11px;
}

.drop-illustration {
  position: relative;
  width: 94px;
  height: 85px;
  margin-bottom: 20px;
}

.photo-sheet {
  position: absolute;
  display: block;
  width: 68px;
  height: 56px;
  overflow: hidden;
  background: var(--surface-strong);
  border: 1.5px solid var(--ink);
  border-radius: 10px;
}

.photo-sheet-back {
  top: 5px;
  left: 10px;
  transform: rotate(-9deg);
}

.photo-sheet-front {
  top: 13px;
  left: 22px;
  transform: rotate(4deg);
}

.photo-sun {
  position: absolute;
  top: 10px;
  right: 11px;
  width: 10px;
  height: 10px;
  background: var(--amber);
  border-radius: 50%;
}

.photo-hill {
  position: absolute;
  bottom: -16px;
  left: 8px;
  width: 54px;
  height: 42px;
  background: var(--moss-pale);
  border: 1.5px solid var(--moss);
  border-radius: 50% 50% 0 0;
  transform: rotate(-13deg);
}

.upload-arrow {
  position: absolute;
  right: 0;
  bottom: 2px;
  display: grid;
  width: 31px;
  height: 31px;
  place-items: center;
  color: #fff;
  background: var(--moss);
  border: 3px solid var(--surface);
  border-radius: 50%;
  font-size: 19px;
  font-weight: 500;
}

.queue-section {
  margin-top: 24px;
}

.queue-header,
.batch-toolbar,
.queue-actions {
  display: flex;
  align-items: center;
}

.queue-header {
  justify-content: space-between;
  margin-bottom: 14px;
}

.queue-header h3 {
  margin: 2px 0 0;
  font-family: var(--font-display);
  font-size: 22px;
}

.batch-toolbar {
  min-height: 45px;
  gap: 14px;
  padding: 7px 11px;
  background: var(--moss-pale);
  border-radius: 13px;
}

.check-control {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
}

input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--moss);
}

.selected-count {
  margin-left: auto;
  color: var(--ink-soft);
  font-size: 11px;
}

.file-list {
  display: grid;
  max-height: 412px;
  margin: 12px 0 0;
  padding: 0;
  gap: 8px;
  overflow: auto;
  list-style: none;
}

.file-item {
  display: grid;
  grid-template-columns: auto 46px minmax(0, 1fr) auto;
  gap: 11px;
  align-items: center;
  min-height: 64px;
  padding: 8px 11px;
  background: var(--surface-strong);
  border: 1px solid var(--line);
  border-radius: 14px;
}

.file-item.is-success {
  border-color: rgba(46, 117, 83, 0.38);
}

.file-item.is-error {
  border-color: rgba(181, 78, 66, 0.45);
}

.file-thumb {
  width: 46px;
  height: 46px;
  object-fit: cover;
  background: var(--sand);
  border-radius: 10px;
}

.file-video {
  display: grid;
  place-items: center;
  color: var(--moss);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

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

.file-name,
.file-meta {
  display: block;
}

.file-name {
  overflow: hidden;
  font-size: 12px;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-meta {
  margin-top: 4px;
  color: var(--ink-soft);
  font-size: 10px;
}

.file-meta.is-error {
  color: var(--danger);
}

.file-meta.is-success {
  color: var(--success);
}

.file-progress {
  display: block;
  width: 100%;
  height: 4px;
  margin-top: 6px;
  overflow: hidden;
  appearance: none;
  background: var(--line);
  border: 0;
  border-radius: 99px;
}

.file-progress::-webkit-progress-bar {
  background: var(--line);
  border-radius: 99px;
}

.file-progress::-webkit-progress-value {
  background: var(--moss);
  border-radius: 99px;
}

.file-progress::-moz-progress-bar {
  background: var(--moss);
  border-radius: 99px;
}

.file-state {
  min-width: 43px;
  color: var(--ink-soft);
  font-size: 10px;
  font-weight: 700;
  text-align: right;
}

.file-state.is-success {
  color: var(--success);
}

.file-state.is-error {
  color: var(--danger);
}

.queue-actions {
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-top: 16px;
  padding-top: 17px;
  border-top: 1px solid var(--line);
}

.queue-summary span,
.queue-summary strong {
  display: block;
}

.queue-summary span {
  color: var(--ink-soft);
  font-size: 11px;
}

.queue-summary strong {
  margin-top: 3px;
  font-family: var(--font-display);
  font-size: 18px;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.assurance {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding-top: 8px;
  border-top: 1px solid rgba(31, 41, 37, 0.12);
}

.assurance > div {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.assurance-dot {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-top: 5px;
  background: var(--moss);
  border: 2px solid var(--canvas);
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--moss);
}

.assurance p {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 11px;
  line-height: 1.55;
}

.assurance strong {
  color: var(--ink);
  font-size: 12px;
}

.toast {
  position: fixed;
  z-index: 10;
  right: 22px;
  bottom: max(22px, env(safe-area-inset-bottom));
  max-width: min(360px, calc(100vw - 44px));
  padding: 12px 16px;
  color: #fff;
  background: var(--ink);
  border-radius: 13px;
  box-shadow: 0 14px 36px rgba(31, 41, 37, 0.24);
  font-size: 12px;
  font-weight: 700;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 860px) {
  .page-shell {
    width: min(640px, calc(100% - 32px));
  }

  main {
    display: block;
    padding-top: 42px;
  }

  .intro {
    position: static;
    padding: 0 4px 34px;
  }

  h1 {
    max-width: 11em;
    font-size: clamp(42px, 11vw, 60px);
  }

  .assurance {
    margin-top: 40px;
  }
}

@media (max-width: 560px) {
  .page-shell {
    width: 100%;
    padding: 0 16px calc(30px + env(safe-area-inset-bottom));
  }

  .site-header {
    min-height: 74px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 12px;
  }

  .privacy-note {
    padding: 7px 9px;
    font-size: 10px;
  }

  main {
    padding-top: 34px;
  }

  h1 {
    font-size: clamp(39px, 12vw, 52px);
  }

  .intro-copy {
    font-size: 14px;
  }

  .workbench {
    border-radius: 22px;
  }

  .auth-panel,
  .upload-panel {
    padding: 21px;
  }

  .panel-heading {
    margin-bottom: 22px;
  }

  .panel-heading h2 {
    font-size: 24px;
  }

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

  input[type="password"],
  .auth-row .button {
    width: 100%;
  }

  .drop-zone {
    min-height: 310px;
    padding-right: 17px;
    padding-left: 17px;
  }

  .desktop-hint {
    display: none;
  }

  .batch-toolbar {
    flex-wrap: wrap;
    gap: 7px 12px;
  }

  .selected-count {
    margin-left: 0;
  }

  .danger-text {
    margin-left: auto;
  }

  .file-item {
    grid-template-columns: auto 42px minmax(0, 1fr);
  }

  .file-thumb {
    width: 42px;
    height: 42px;
  }

  .file-state {
    display: none;
  }

  .queue-actions {
    display: block;
  }

  .action-row {
    margin-top: 14px;
    justify-content: stretch;
  }

  .action-row .button {
    flex: 1 1 auto;
  }

  .assurance {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 24px 8px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}