:root {
  --bg: #f3f6fb;
  --bg-deep: #e7edf6;
  --panel: rgba(255, 255, 255, 0.88);
  --panel-strong: rgba(255, 255, 255, 0.95);
  --ink: #142033;
  --muted: #617086;
  --accent: #2463eb;
  --accent-deep: #1a4fc1;
  --accent-soft: #dfe9ff;
  --accent-teal: #139287;
  --accent-rose: #dd5b8d;
  --line: rgba(69, 92, 126, 0.12);
  --success: #13795b;
  --error: #c0392b;
  --shadow: 0 20px 48px rgba(24, 40, 67, 0.1);
  --shadow-soft: 0 8px 22px rgba(24, 40, 67, 0.06);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  color-scheme: light;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(36, 99, 235, 0.12), transparent 22%),
    radial-gradient(circle at 82% 14%, rgba(19, 146, 135, 0.08), transparent 18%),
    radial-gradient(circle at 78% 82%, rgba(221, 91, 141, 0.06), transparent 14%),
    linear-gradient(180deg, #f8fbff 0%, var(--bg) 48%, var(--bg-deep) 100%);
}

body:not(.is-authenticated) .app-shell {
  filter: blur(12px);
  pointer-events: none;
  user-select: none;
}

.login-overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(234, 241, 250, 0.54);
  backdrop-filter: blur(12px);
}

.login-card {
  width: min(520px, 100%);
  padding: 28px;
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(246, 250, 255, 0.92)),
    var(--panel-strong);
  border: 1px solid rgba(26, 115, 232, 0.12);
  box-shadow: var(--shadow);
}

.login-card__title {
  margin: 12px 0 0;
  font-family: "Iowan Old Style", "Palatino Linotype", serif;
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
}

.login-card__lede {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.65;
}

.login-form {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.login-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.login-field {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-size: 0.95rem;
}

.login-field span {
  font-weight: 700;
}

.login-field input {
  width: 100%;
  padding: 14px 15px;
  border-radius: 16px;
  border: 1px solid rgba(26, 115, 232, 0.16);
  background: rgba(255, 255, 255, 0.86);
  color: var(--ink);
  font: inherit;
}

.login-field input:focus {
  outline: 2px solid rgba(26, 115, 232, 0.16);
  border-color: rgba(26, 115, 232, 0.36);
}

.login-feedback {
  min-height: 1.5rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.login-button {
  justify-self: start;
  background: linear-gradient(180deg, #1a73e8, #1557b0);
  color: #fff;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 36px 20px;
}

.hero-card {
  width: min(1120px, 100%);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(247, 250, 255, 0.88)),
    var(--panel-strong);
  border: 1px solid rgba(26, 115, 232, 0.12);
  border-radius: 32px;
  box-shadow: var(--shadow);
  padding: 34px;
  backdrop-filter: blur(18px);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.9fr);
  gap: 22px;
  align-items: stretch;
}

.hero-copy,
.hero-aside,
.upload-panel,
.status-card,
.preview-card,
.result-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-soft);
}

.hero-copy {
  padding: 28px;
}

.hero-aside {
  padding: 18px;
}

.eyebrow,
.result-card__eyebrow,
.aside-card__label,
.status-card__label,
.preview-card__label {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  color: var(--accent);
}

h1 {
  margin: 12px 0 0;
  font-family: "Iowan Old Style", "Palatino Linotype", serif;
  font-size: clamp(2.5rem, 5vw, 4.2rem);
  line-height: 0.96;
  letter-spacing: -0.03em;
}

.lede {
  margin: 18px 0 0;
  max-width: 54ch;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.7;
}

.hero-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.welcome-line {
  margin: 18px 0 0;
  color: var(--accent-deep);
  font-weight: 700;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(26, 115, 232, 0.14);
  color: #415166;
  font-size: 0.92rem;
}

.aside-card {
  height: 100%;
  padding: 10px;
}

.aside-steps {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.aside-step {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 12px;
  align-items: start;
  padding: 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(26, 115, 232, 0.1);
}

.session-meter {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(36, 99, 235, 0.1);
  color: var(--muted);
  font-size: 0.92rem;
}

.session-meter__label {
  font-weight: 700;
  color: var(--ink);
}

.session-meter__value {
  color: var(--accent-deep);
  font-weight: 700;
}

.aside-step__index {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--accent), var(--accent-deep));
  color: #fff;
  font-weight: 700;
}

.aside-step__text {
  color: var(--ink);
  line-height: 1.45;
}

.workspace-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 22px;
  margin-top: 24px;
}

.workspace-main {
  display: grid;
  gap: 20px;
}

.upload-panel,
.status-card,
.preview-card,
.result-card {
  padding: 22px;
}

.file-picker {
  display: block;
  position: relative;
  border: 1.5px dashed rgba(26, 115, 232, 0.3);
  background:
    radial-gradient(circle at top right, rgba(26, 115, 232, 0.08), transparent 28%),
    linear-gradient(180deg, rgba(251, 253, 255, 0.98), rgba(242, 247, 255, 0.92));
  border-radius: 22px;
  padding: 24px;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.file-picker:hover {
  transform: translateY(-2px);
  border-color: rgba(26, 115, 232, 0.5);
  box-shadow: 0 16px 34px rgba(26, 115, 232, 0.08);
}

.file-picker__badge {
  display: inline-flex;
  padding: 7px 12px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(26, 115, 232, 0.12), rgba(15, 157, 140, 0.1));
  color: var(--accent-deep);
  font-size: 0.8rem;
  font-weight: 700;
}

.file-picker__title {
  display: block;
  margin-top: 16px;
  font-family: "Iowan Old Style", "Palatino Linotype", serif;
  font-size: 1.7rem;
  line-height: 1.05;
}

.file-picker__subtitle {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.55;
}

input[type="file"] {
  display: block;
  margin-top: 18px;
  width: 100%;
  font: inherit;
}

.selected-file {
  margin-top: 14px;
  min-height: 1.5rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 18px;
}

.mobile-actions {
  display: flex;
  justify-content: flex-start;
  margin-top: 16px;
}

.session-actions {
  margin-top: 18px;
}

button {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 14px 22px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform 140ms ease, opacity 140ms ease, background 140ms ease, color 140ms ease;
}

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

#download-button {
  background: linear-gradient(180deg, #1a73e8, #1557b0);
  color: #fff;
}

#camera-button {
  background: linear-gradient(180deg, #0f9d8c, #0b7c6f);
  color: #fff;
}

#logout-button {
  background: rgba(255, 255, 255, 0.82);
  color: var(--ink);
  border: 1px solid rgba(26, 115, 232, 0.12);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.56;
}

.status-card {
  position: relative;
  overflow: hidden;
}

.status-card__message {
  margin-top: 12px;
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.45;
}

.status-card__submessage {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.progress-shell {
  margin-top: 18px;
}

.progress-bar {
  width: 100%;
  height: 12px;
  background: linear-gradient(180deg, #eaf1fb, #dfe9f7);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid rgba(26, 115, 232, 0.12);
}

.progress-bar__fill {
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.02)),
    linear-gradient(90deg, var(--accent), var(--accent-teal));
  box-shadow: 0 10px 22px rgba(26, 115, 232, 0.2);
  transition: width 320ms ease;
  position: relative;
}

.progress-bar__fill::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 0%, rgba(255, 255, 255, 0.42) 50%, transparent 100%);
  transform: translateX(-100%);
  animation: progress-shimmer 1.6s linear infinite;
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.9rem;
}

.progress-percent {
  color: var(--accent-deep);
  font-weight: 800;
}

.progress-stage {
  text-align: right;
}

.status-card.is-success .status-card__message {
  color: var(--success);
}

.status-card.is-error .status-card__message {
  color: var(--error);
}

.status-card.is-processing {
  background:
    radial-gradient(circle at top right, rgba(26, 115, 232, 0.08), transparent 28%),
    var(--panel);
}

.status-card.is-processing::before {
  content: "";
  position: absolute;
  top: 0;
  left: -20%;
  width: 40%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  animation: status-scan 2.2s linear infinite;
}

.preview-card {
  height: 100%;
}

.preview-frame {
  display: grid;
  place-items: center;
  min-height: 320px;
  margin-top: 14px;
  padding: 14px;
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(247, 250, 255, 0.94), rgba(236, 243, 252, 0.9));
  border: 1px solid rgba(26, 115, 232, 0.1);
  overflow: hidden;
}

#preview-image {
  width: 100%;
  height: 100%;
  max-height: 420px;
  object-fit: contain;
  border-radius: 16px;
  box-shadow: 0 16px 32px rgba(62, 38, 20, 0.16);
}

.preview-placeholder {
  max-width: 24ch;
  text-align: center;
  color: var(--muted);
  line-height: 1.6;
}

.result-card {
  margin-top: 24px;
}

.result-card__header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: end;
  margin-bottom: 16px;
}

.result-card h2 {
  margin: 8px 0 0;
  font-family: "Iowan Old Style", "Palatino Linotype", serif;
  font-size: 1.8rem;
  line-height: 1.05;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.result-row {
  display: grid;
  gap: 6px;
  min-height: 112px;
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(26, 115, 232, 0.1);
}

.result-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--muted);
}

.result-value {
  line-height: 1.55;
  white-space: pre-wrap;
  font-size: 0.98rem;
}

@keyframes progress-shimmer {
  to {
    transform: translateX(100%);
  }
}

@keyframes status-scan {
  to {
    transform: translateX(320%);
  }
}

@media (max-width: 980px) {
  .hero-grid,
  .workspace-grid,
  .result-grid {
    grid-template-columns: 1fr;
  }

  .login-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .app-shell {
    padding: 20px 14px;
  }

  .hero-card {
    padding: 18px;
    border-radius: 24px;
  }

  .hero-copy,
  .hero-aside,
  .upload-panel,
  .status-card,
  .preview-card,
  .result-card {
    padding: 18px;
    border-radius: 20px;
  }

  .actions {
    justify-content: stretch;
  }

  .mobile-actions {
    justify-content: stretch;
  }

  button {
    width: 100%;
  }

  .progress-meta {
    flex-direction: column;
    align-items: flex-start;
  }

  .progress-stage {
    text-align: left;
  }

  .preview-frame {
    min-height: 240px;
  }

  .result-row {
    min-height: auto;
  }
}