:root {
  --sheetpdf-bg: #eef5fb;
  --sheetpdf-panel: rgba(255, 255, 255, 0.9);
  --sheetpdf-border: #d7e5f4;
  --sheetpdf-text: #0f172a;
  --sheetpdf-muted: #64748b;
  --sheetpdf-blue: #2563eb;
  --sheetpdf-blue-dark: #1d4ed8;
  --sheetpdf-green: #059669;
  --sheetpdf-red: #dc2626;
  --sheetpdf-shadow: 0 16px 42px rgba(30, 64, 175, 0.1);
  --sheetpdf-radius-lg: 18px;
  --sheetpdf-radius-md: 12px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--sheetpdf-text);
  background: var(--sheetpdf-bg);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 0%, rgba(59, 130, 246, 0.13), transparent 28rem),
    linear-gradient(180deg, #f5f9fd 0%, var(--sheetpdf-bg) 42%, #edf4fa 100%);
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.sheetpdf-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(203, 213, 225, 0.75);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
}

.sheetpdf-header-inner {
  width: min(1120px, calc(100% - 32px));
  min-height: 64px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

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

.sheetpdf-brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 11px;
  background: linear-gradient(145deg, #60a5fa, #4f46e5);
  box-shadow: 0 8px 18px rgba(59, 130, 246, 0.25);
  position: relative;
}

.sheetpdf-brand-mark::after {
  content: "";
  position: absolute;
  inset: 7px;
  border: 2px solid rgba(255, 255, 255, 0.72);
  border-radius: 5px;
}

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

.sheetpdf-brand strong {
  font-size: 15px;
  line-height: 1.25;
}

.sheetpdf-brand small {
  margin-top: 2px;
  color: var(--sheetpdf-muted);
  font-size: 11px;
}

.sheetpdf-back {
  color: #334155;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  padding: 8px 12px;
  border: 1px solid #dbe6f2;
  border-radius: 10px;
  background: #fff;
}

.sheetpdf-back:hover {
  border-color: #93c5fd;
  color: var(--sheetpdf-blue);
}

.sheetpdf-main {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 44px 0 56px;
}

.sheetpdf-hero {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 22px;
}

.sheetpdf-kicker {
  margin: 0 0 8px;
  color: var(--sheetpdf-blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.sheetpdf-hero h1 {
  margin: 0;
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: -0.04em;
  line-height: 1.1;
}

.sheetpdf-lead {
  max-width: 720px;
  margin: 12px 0 0;
  color: #475569;
  font-size: 15px;
  line-height: 1.7;
}

.sheetpdf-hero-badge {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 13px;
  border: 1px solid var(--sheetpdf-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  color: #475569;
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 8px 22px rgba(15, 23, 42, 0.05);
}

.sheetpdf-hero-badge i {
  color: #94a3b8;
  font-style: normal;
}

.sheetpdf-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.85fr);
  gap: 18px;
}

.sheetpdf-card {
  padding: 24px;
  border: 1px solid var(--sheetpdf-border);
  border-radius: var(--sheetpdf-radius-lg);
  background: var(--sheetpdf-panel);
  box-shadow: var(--sheetpdf-shadow);
}

.sheetpdf-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.sheetpdf-card-head p {
  margin: 0 0 5px;
  color: var(--sheetpdf-blue);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sheetpdf-card-head h2 {
  margin: 0;
  font-size: 20px;
  letter-spacing: -0.02em;
}

.sheetpdf-tag,
.sheetpdf-service-badge {
  display: inline-flex;
  align-items: center;
  min-height: 25px;
  padding: 4px 9px;
  border-radius: 999px;
  background: #eff6ff;
  color: var(--sheetpdf-blue);
  font-size: 11px;
  font-weight: 800;
  white-space: nowrap;
}

.sheetpdf-service-badge.is-ready {
  background: #ecfdf5;
  color: #047857;
}

.sheetpdf-service-badge.is-error {
  background: #fef2f2;
  color: #b91c1c;
}

.sheetpdf-dropzone {
  min-height: 230px;
  border: 2px dashed #bcd2ea;
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(248, 251, 255, 0.96), rgba(241, 247, 253, 0.92));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 28px 20px;
  text-align: center;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
  cursor: pointer;
}

.sheetpdf-dropzone:hover,
.sheetpdf-dropzone.is-dragover {
  border-color: #60a5fa;
  background: #eff6ff;
  transform: translateY(-1px);
}

.sheetpdf-dropzone strong {
  font-size: 17px;
}

.sheetpdf-dropzone > span:last-child {
  color: var(--sheetpdf-muted);
  font-size: 13px;
  line-height: 1.55;
}

.sheetpdf-upload-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: linear-gradient(145deg, #dbeafe, #bfdbfe);
  position: relative;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.sheetpdf-upload-icon::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 24px;
  height: 29px;
  border: 3px solid var(--sheetpdf-blue);
  border-radius: 5px;
  transform: translate(-50%, -50%);
}

.sheetpdf-upload-icon::after {
  content: "↑";
  position: absolute;
  left: 50%;
  top: 50%;
  color: var(--sheetpdf-blue);
  font-size: 19px;
  font-weight: 900;
  transform: translate(-50%, -50%);
}

.sheetpdf-file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.sheetpdf-file-info {
  margin-top: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 14px;
  border: 1px solid #dbe7f4;
  border-radius: 13px;
  background: #fff;
}

.sheetpdf-file-icon {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 11px;
  background: #dcfce7;
  color: #047857;
  font-size: 10px;
  font-weight: 900;
}

.sheetpdf-file-info > div {
  min-width: 0;
  flex: 1;
}

.sheetpdf-file-info strong,
.sheetpdf-file-info span {
  display: block;
}

.sheetpdf-file-info strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 14px;
}

.sheetpdf-file-info span {
  margin-top: 4px;
  color: var(--sheetpdf-muted);
  font-size: 12px;
}

.sheetpdf-file-info button {
  border: 0;
  background: transparent;
  color: #64748b;
  font-size: 12px;
  font-weight: 700;
}

.sheetpdf-file-info button:hover {
  color: var(--sheetpdf-red);
}

.sheetpdf-format-note {
  margin-top: 14px;
  padding: 13px 15px;
  border-left: 4px solid #60a5fa;
  border-radius: 10px;
  background: #f8fbff;
}

.sheetpdf-format-note strong {
  font-size: 13px;
}

.sheetpdf-format-note p {
  margin: 5px 0 0;
  color: var(--sheetpdf-muted);
  font-size: 12px;
  line-height: 1.6;
}

.sheetpdf-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.sheetpdf-btn {
  min-height: 42px;
  padding: 9px 17px;
  border: 1px solid transparent;
  border-radius: 11px;
  font-size: 13px;
  font-weight: 800;
  transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
}

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

.sheetpdf-btn:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.sheetpdf-btn-primary {
  flex: 1;
  color: #fff;
  background: linear-gradient(135deg, #2563eb, #4f46e5);
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.22);
}

.sheetpdf-btn-secondary {
  color: #475569;
  border-color: #d8e3ef;
  background: #fff;
}

.sheetpdf-status {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  min-height: 92px;
  padding: 16px;
  border: 1px solid #dbe7f4;
  border-radius: 14px;
  background: #f8fbff;
}

.sheetpdf-status-icon {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  border: 3px solid #bfdbfe;
  border-top-color: var(--sheetpdf-blue);
  border-radius: 50%;
}

.sheetpdf-status.is-idle .sheetpdf-status-icon {
  border: 0;
  background: #dbeafe;
  position: relative;
}

.sheetpdf-status.is-idle .sheetpdf-status-icon::after {
  content: "…";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--sheetpdf-blue);
  font-weight: 900;
  line-height: 1;
}

.sheetpdf-status.is-processing .sheetpdf-status-icon {
  animation: sheetpdf-spin 0.9s linear infinite;
}

.sheetpdf-status.is-success .sheetpdf-status-icon {
  border: 0;
  background: #d1fae5;
  position: relative;
}

.sheetpdf-status.is-success .sheetpdf-status-icon::after {
  content: "✓";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: #047857;
  font-size: 18px;
  font-weight: 900;
}

.sheetpdf-status.is-error .sheetpdf-status-icon {
  border: 0;
  background: #fee2e2;
  position: relative;
}

.sheetpdf-status.is-error .sheetpdf-status-icon::after {
  content: "!";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: #b91c1c;
  font-size: 18px;
  font-weight: 900;
}

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

.sheetpdf-status strong {
  display: block;
  font-size: 14px;
}

.sheetpdf-status p {
  margin: 6px 0 0;
  color: var(--sheetpdf-muted);
  font-size: 12px;
  line-height: 1.55;
}

.sheetpdf-progress {
  height: 6px;
  margin: 12px 2px 0;
  overflow: hidden;
  border-radius: 999px;
  background: #dbeafe;
}

.sheetpdf-progress span {
  display: block;
  width: 35%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #2563eb, #60a5fa);
  animation: sheetpdf-progress 1.2s ease-in-out infinite;
}

@keyframes sheetpdf-progress {
  0% { transform: translateX(-120%); }
  100% { transform: translateX(360%); }
}

.sheetpdf-result {
  margin-top: 14px;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 10px 12px;
  align-items: center;
  padding: 14px;
  border: 1px solid #a7f3d0;
  border-radius: 14px;
  background: #ecfdf5;
}

.sheetpdf-result-icon {
  grid-row: span 2;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 11px;
  color: #b91c1c;
  background: #fee2e2;
  font-size: 10px;
  font-weight: 900;
}

.sheetpdf-result div {
  min-width: 0;
}

.sheetpdf-result strong,
.sheetpdf-result span {
  display: block;
}

.sheetpdf-result strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
}

.sheetpdf-result span {
  margin-top: 3px;
  color: #047857;
  font-size: 11px;
}

.sheetpdf-btn-download {
  grid-column: 1 / -1;
  width: 100%;
  color: #fff;
  background: var(--sheetpdf-green);
}

.sheetpdf-benefits {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.sheetpdf-benefits li {
  padding-top: 12px;
  border-top: 1px solid #e5edf5;
}

.sheetpdf-benefits strong,
.sheetpdf-benefits span {
  display: block;
}

.sheetpdf-benefits strong {
  font-size: 13px;
}

.sheetpdf-benefits span {
  margin-top: 4px;
  color: var(--sheetpdf-muted);
  font-size: 12px;
  line-height: 1.55;
}

.sheetpdf-info-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.sheetpdf-info-grid article {
  position: relative;
  padding: 20px 19px 18px;
  border: 1px solid var(--sheetpdf-border);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.78);
}

.sheetpdf-info-grid article > span {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 9px;
  color: var(--sheetpdf-blue);
  background: #dbeafe;
  font-size: 12px;
  font-weight: 900;
}

.sheetpdf-info-grid h2 {
  margin: 13px 0 7px;
  font-size: 15px;
}

.sheetpdf-info-grid p {
  margin: 0;
  color: var(--sheetpdf-muted);
  font-size: 12px;
  line-height: 1.65;
}

.sheetpdf-privacy {
  margin-top: 16px;
  padding: 16px 18px;
  border: 1px dashed #b9cce1;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.66);
}

.sheetpdf-privacy strong {
  font-size: 13px;
}

.sheetpdf-privacy p {
  margin: 6px 0 0;
  color: var(--sheetpdf-muted);
  font-size: 12px;
  line-height: 1.65;
}

.sheetpdf-footer {
  padding: 22px 16px 32px;
  color: #94a3b8;
  text-align: center;
  font-size: 12px;
}

@media (max-width: 880px) {
  .sheetpdf-hero {
    display: block;
  }

  .sheetpdf-hero-badge {
    width: fit-content;
    margin-top: 18px;
  }

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

@media (max-width: 680px) {
  .sheetpdf-main,
  .sheetpdf-header-inner {
    width: min(100% - 22px, 1120px);
  }

  .sheetpdf-main {
    padding-top: 28px;
  }

  .sheetpdf-brand small {
    display: none;
  }

  .sheetpdf-back {
    font-size: 12px;
  }

  .sheetpdf-card {
    padding: 18px;
  }

  .sheetpdf-dropzone {
    min-height: 200px;
  }

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

  .sheetpdf-hero-badge {
    display: none;
  }
}