:root {
  --ink: #10231f;
  --muted: #4d635c;
  --line: rgba(16, 35, 31, 0.12);
  --panel: rgba(247, 250, 248, 0.82);
  --teal: #0f766e;
  --teal-deep: #115e59;
  --sand: #e7f2ec;
  --warn: #b45309;
  --ok: #047857;
  --danger: #b91c1c;
  --shadow: 0 24px 60px rgba(16, 35, 31, 0.12);
  --radius: 18px;
  /* 本地 woff2（fonts.css）+ 系统中文字体兜底，零外网请求 */
  --font-display: "Syne", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-body: "DM Sans", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --page-pad: clamp(1rem, 4vw, 3rem);
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

html,
body {
  margin: 0;
  min-height: 100%;
  min-height: 100dvh;
  color: var(--ink);
  font-family: var(--font-body);
  background:
    radial-gradient(1200px 700px at 10% -10%, #d7efe7 0%, transparent 55%),
    radial-gradient(900px 600px at 100% 0%, #cfe4f0 0%, transparent 50%),
    linear-gradient(160deg, #f4faf7 0%, #eef3f1 45%, #e8eef2 100%);
}

body {
  overflow-x: hidden;
  padding-left: var(--safe-left);
  padding-right: var(--safe-right);
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(16, 35, 31, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 35, 31, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  pointer-events: none;
  z-index: 0;
  animation: gridDrift 28s linear infinite;
}

.bg-glow {
  position: fixed;
  width: min(42vw, 420px);
  height: min(42vw, 420px);
  right: -8vw;
  bottom: -12vw;
  background: radial-gradient(circle, rgba(15, 118, 110, 0.18), transparent 68%);
  filter: blur(8px);
  pointer-events: none;
  z-index: 0;
  animation: pulseGlow 8s ease-in-out infinite;
}

.top,
.hero,
.login-gate,
.app-shell {
  position: relative;
  z-index: 1;
}

.mobile-copy {
  display: none;
}

.login-gate {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding:
    calc(1.25rem + var(--safe-top))
    max(1rem, var(--safe-right))
    calc(1.25rem + var(--safe-bottom))
    max(1rem, var(--safe-left));
}

.login-card {
  width: min(420px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 6px);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  padding: clamp(1.25rem, 4vw, 2.25rem);
  animation: riseIn 0.35s ease both;
}

.login-brand {
  margin-bottom: 1.1rem;
}

.login-card h1 {
  font-size: clamp(1.7rem, 6vw, 2.4rem);
  margin: 0 0 0.55rem;
}

.field {
  display: grid;
  gap: 0.45rem;
  margin: 1.1rem 0 0.85rem;
  font-weight: 600;
  font-size: 0.92rem;
}

.field input {
  appearance: none;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.9rem 0.95rem;
  font: inherit;
  font-size: 16px; /* avoid iOS zoom */
  color: var(--ink);
  background: rgba(255, 255, 255, 0.8);
  width: 100%;
}

.field input:focus {
  outline: 2px solid rgba(15, 118, 110, 0.35);
  border-color: var(--teal);
}

.login-error {
  margin: 0 0 0.85rem;
  color: var(--danger);
  font-size: 0.9rem;
}

.login-ok {
  margin: 0 0 0.85rem;
  color: var(--ok);
  font-size: 0.9rem;
}

.password-dialog {
  border: 0;
  padding: 0;
  background: transparent;
  width: min(420px, calc(100vw - 2rem));
  max-width: calc(100vw - 2rem);
  margin: auto;
}

.password-dialog::backdrop {
  background: rgba(16, 35, 31, 0.45);
  backdrop-filter: blur(4px);
}

.dialog-card {
  margin: 0;
  width: 100%;
}

.dialog-card h2 {
  margin: 0 0 0.55rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 5vw, 1.55rem);
  letter-spacing: -0.03em;
}

.btn.wide {
  width: 100%;
  text-align: center;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.top-buttons {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding:
    calc(1rem + var(--safe-top))
    var(--page-pad)
    1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  min-width: 0;
}

.brand-mark {
  width: 1.1rem;
  height: 1.1rem;
  flex-shrink: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--teal), #38bdf8);
  box-shadow: 0 0 0 6px rgba(15, 118, 110, 0.12);
  animation: markPulse 2.8s ease-in-out infinite;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.55rem, 5vw, 2.4rem);
  letter-spacing: -0.04em;
  line-height: 1;
}

.brand-tag {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  white-space: nowrap;
}

.hero {
  width: min(920px, calc(100% - 2 * var(--page-pad)));
  margin: 0 auto calc(2.5rem + var(--safe-bottom));
  display: grid;
  gap: 1.25rem;
}

.panel {
  border: 1px dashed rgba(15, 118, 110, 0.35);
  border-radius: calc(var(--radius) + 6px);
  background: var(--panel);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  min-height: min(52vh, 420px);
  display: grid;
  place-items: center;
  transition: border-color 0.25s ease, transform 0.25s ease, background 0.25s ease;
}

.panel.dragover {
  border-color: var(--teal);
  background: rgba(231, 242, 236, 0.95);
  transform: translateY(-2px);
}

.panel-inner {
  width: min(560px, 100%);
  padding: clamp(1.25rem, 4vw, 2.5rem);
  text-align: left;
}

h1 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 7vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
}

.lede {
  margin: 0 0 1.35rem;
  color: var(--muted);
  font-size: clamp(0.98rem, 2.8vw, 1.05rem);
  line-height: 1.55;
  max-width: 36ch;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.btn {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 0.82rem 1.2rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, opacity 0.15s ease;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  touch-action: manipulation;
}

.btn:hover:not(:disabled) {
  transform: translateY(-1px);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn.primary {
  background: var(--teal);
  color: #f8fffc;
}

.btn.primary:hover:not(:disabled) {
  background: var(--teal-deep);
}

.btn.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.btn.text {
  background: transparent;
  color: var(--teal-deep);
  padding: 0.45rem 0.65rem;
  min-height: 40px;
}

.hint {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.45;
}

.queue,
.library {
  display: grid;
  gap: 0.85rem;
}

.job {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  animation: riseIn 0.35s ease both;
}

.job-top {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
}

.job-name {
  font-weight: 700;
  word-break: break-all;
}

.job-meta {
  color: var(--muted);
  font-size: 0.88rem;
  white-space: nowrap;
}

.progress {
  margin-top: 0.8rem;
  height: 8px;
  border-radius: 999px;
  background: rgba(16, 35, 31, 0.08);
  overflow: hidden;
}

.progress > span {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--teal), #0ea5e9);
  transition: width 0.2s ease;
}

.job-status {
  margin-top: 0.55rem;
  font-size: 0.9rem;
  color: var(--muted);
  word-break: break-word;
}

.job-status.ok {
  color: var(--ok);
}

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

.job-status.err {
  color: var(--danger);
}

.library-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.library h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 4vw, 1.35rem);
  letter-spacing: -0.03em;
}

.file-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.file-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: 0.9rem 1rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--line);
}

.file-list a,
.file-list .download-btn {
  color: var(--teal-deep);
  font-weight: 600;
  text-decoration: none;
  flex-shrink: 0;
}

.file-list a:hover,
.file-list .download-btn:hover {
  text-decoration: underline;
}

.empty {
  color: var(--muted);
  margin: 0;
}

@keyframes riseIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes markPulse {
  0%,
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 6px rgba(15, 118, 110, 0.12);
  }
  50% {
    transform: scale(1.08);
    box-shadow: 0 0 0 10px rgba(15, 118, 110, 0.08);
  }
}

@keyframes pulseGlow {
  0%,
  100% {
    opacity: 0.7;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.06);
  }
}

@keyframes gridDrift {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(48px);
  }
}

/* Tablet */
@media (max-width: 900px) {
  .brand-tag {
    display: none;
  }

  .top-actions {
    gap: 0.35rem;
  }
}

/* Phone */
@media (max-width: 640px) {
  .desktop-copy {
    display: none;
  }

  .mobile-copy {
    display: block;
  }

  .top {
    align-items: flex-start;
    gap: 0.75rem;
  }

  .top-actions {
    width: auto;
    margin-left: auto;
  }

  .panel {
    min-height: 0;
  }

  .panel-inner {
    padding: 1.25rem 1.1rem;
  }

  .cta-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.65rem;
  }

  .cta-row .btn.primary,
  .cta-row label.btn.primary {
    grid-column: 1 / -1;
    width: 100%;
  }

  .cta-row .btn.ghost {
    width: 100%;
  }

  .job-top,
  .file-list li,
  .dialog-card .cta-row {
    flex-direction: column;
    align-items: stretch;
  }

  .job-meta {
    white-space: normal;
  }

  .file-list li .download-btn,
  .dialog-card .cta-row .btn {
    width: 100%;
  }

  .password-dialog {
    width: calc(100vw - 1.5rem);
    max-height: calc(100dvh - 2rem);
  }

  .dialog-card {
    max-height: calc(100dvh - 2rem);
    overflow: auto;
  }

  .hint {
    font-size: 0.82rem;
  }
}

/* Very small phones */
@media (max-width: 380px) {
  .brand-name {
    font-size: 1.4rem;
  }

  .top-buttons .btn.text {
    padding: 0.4rem 0.5rem;
    font-size: 0.92rem;
  }
}

/* Prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  .bg-grid,
  .bg-glow,
  .brand-mark,
  .job {
    animation: none;
  }

  .btn,
  .panel,
  .progress > span {
    transition: none;
  }
}