:root {
  --color-bg: #f4f7fb;
  --color-surface: #ffffff;
  --color-border: #d8e1ec;
  --color-text: #162133;
  --color-muted: #4e5f77;
  --color-accent: #1f5d9b;
  --color-accent-hover: #184d81;
  --color-success-bg: #e9f7ef;
  --color-success-border: #b8e0c7;
  --color-success-text: #1f5e37;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-soft: 0 12px 28px rgba(15, 33, 64, 0.08);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  /* Reduce jumpy scroll correction when webfonts load and line-wrapping reflows (can look like blocks moved mid-page on reload). */
  overflow-anchor: none;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: "Source Sans 3", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

a {
  color: var(--color-accent);
}

a:hover {
  color: var(--color-accent-hover);
}

.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.site-shell {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 1rem;
}

.site-nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  margin: 0;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  gap: 1rem;
  font-weight: 600;
}

.brand-cluster {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.brand-org {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.brand-org:hover {
  color: var(--color-accent);
}

.brand-product {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-muted);
  letter-spacing: 0.01em;
}

.page-main {
  padding: 2rem 0 3rem;
}

.grid-main {
  display: grid;
  gap: 1.25rem;
}

.upload-lead {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  width: 100%;
  min-width: 0;
}

.scope-note {
  margin: 0;
  line-height: 1.55;
  font-size: 0.98rem;
}

.scope-note a {
  font-weight: 600;
  overflow-wrap: anywhere;
}

.upload-meta__title {
  margin: 0 0 0.45rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
}

.upload-meta__block .muted {
  margin: 0;
}

.upload-meta {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.upload-meta__block--split {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.hero {
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(140deg, #ffffff 15%, #eff5fc 100%);
}

.hero h1 {
  margin: 0 0 0.4rem;
}

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

.card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
  padding: 1.25rem;
}

.card h2,
.card h3 {
  margin-top: 0;
}

.stack-sm > * + * {
  margin-top: 0.75rem;
}

.stack-md > * + * {
  margin-top: 1.1rem;
}

form p {
  margin: 0 0 0.85rem;
}

label {
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 600;
}

.submission-form .form-field {
  max-width: 520px;
  margin-bottom: 1.1rem;
}

.submission-form .form-field:last-of-type {
  margin-bottom: 1.25rem;
}

.submission-form .form-field > label {
  margin-bottom: 0.4rem;
}

.submission-form .field-hint {
  margin: 0.4rem 0 0;
  max-width: 42rem;
  font-size: 0.92rem;
  font-weight: 400;
  line-height: 1.45;
  color: var(--color-muted);
}

.submission-form .form-errors {
  margin: 0.4rem 0 0;
  padding-left: 1.1rem;
  color: #9a2b2b;
  font-size: 0.92rem;
}

.submission-form .form-errors--nonfield {
  margin: 0 0 1rem;
  padding-left: 1.1rem;
  color: #9a2b2b;
  font-size: 0.92rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
textarea,
select {
  width: 100%;
  max-width: 520px;
  border: 1px solid #c7d3e2;
  border-radius: var(--radius-sm);
  font: inherit;
  color: var(--color-text);
  background: #fff;
  padding: 0.6rem 0.75rem;
}

input:focus,
textarea:focus,
select:focus {
  outline: 2px solid rgba(31, 93, 155, 0.18);
  border-color: var(--color-accent);
}

input[type="file"] {
  display: block;
  margin-bottom: 0.7rem;
}

button {
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: #fff;
  padding: 0.55rem 0.95rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

button:hover {
  background: var(--color-accent-hover);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.7;
}

.muted {
  color: var(--color-muted);
}

.small-print {
  font-size: 0.92rem;
}

.about-details {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.8rem;
  background: #f9fbfe;
}

.about-details summary {
  cursor: pointer;
  font-weight: 600;
}

.about-details p {
  margin: 0.55rem 0 0;
  color: var(--color-muted);
}

.about-details p + p {
  margin-top: 0.55rem;
}

#uploadMsg {
  margin: 0.5rem 0 0;
  color: var(--color-muted);
}

.message-list {
  margin: 0 0 1rem;
  padding: 0;
  list-style: none;
}

.message-item {
  border: 1px solid var(--color-success-border);
  background: var(--color-success-bg);
  color: var(--color-success-text);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.75rem;
  margin-bottom: 0.55rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

th,
td {
  border: 1px solid var(--color-border);
  padding: 0.6rem;
  text-align: left;
}

th {
  background: #f2f6fc;
}

code {
  font-size: 0.93em;
  padding: 0.12rem 0.28rem;
  background: #eef3f9;
  border-radius: 5px;
}

.site-footer {
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 0.94rem;
  padding: 1.25rem 0 1.8rem;
}

.footer-stack {
  display: grid;
  gap: 0.65rem;
}

.footer-stack p {
  margin: 0;
}

.footer-lead {
  color: var(--color-text);
}

.footer-preprint {
  font-size: 0.92rem;
}

.notice-box {
  border: 1px solid #c9daf0;
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, #f5f9ff 0%, #f9fbfe 100%);
  padding: 0.85rem 1rem;
  font-size: 0.96rem;
}

.notice-box p {
  margin: 0;
}

.notice-title {
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.45rem !important;
}

.consent-label {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-weight: 400;
  max-width: 640px;
  line-height: 1.45;
}

.consent-label input {
  margin-top: 0.25rem;
  flex-shrink: 0;
}

.label-hint {
  font-weight: 400;
  color: var(--color-muted);
  font-size: 0.92rem;
}

.folder-summary {
  margin: 0.1rem 0 0.75rem;
  padding: 0.55rem 0.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.93rem;
  line-height: 1.45;
  border: 1px solid transparent;
}

.folder-summary--ok {
  background: var(--color-success-bg);
  border-color: var(--color-success-border);
  color: var(--color-success-text);
}

.folder-summary--warn {
  background: #fffbeb;
  border-color: #f5d87a;
  color: #7a5800;
}

.folder-summary--error {
  background: #fff0f0;
  border-color: #f5b8b8;
  color: #8a1f1f;
}

.upload-success {
  border: 1px solid var(--color-success-border);
  background: var(--color-success-bg);
  border-radius: var(--radius-sm);
  padding: 1rem 1.1rem;
}

.upload-success__title {
  margin: 0 0 0.4rem;
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-success-text);
}

.upload-success p {
  margin: 0 0 0.75rem;
  color: var(--color-success-text);
  font-size: 0.95rem;
}

.upload-success button {
  background: var(--color-success-text);
  border-color: transparent;
}

.upload-success button:hover {
  background: #174d2d;
}

@media (max-width: 720px) {
  .site-nav {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.8rem 0;
  }

  .nav-links {
    flex-wrap: wrap;
  }
}