/*
 * YDB Developer Portal — shared stylesheet.
 *
 * Canonical URL: https://ydb-platform.github.io/assets/portal.css
 * Subsites adopt the unified look by linking this file directly.
 *
 * Palette
 *   brand         #2399FF   YDB blue, taken from the official logo
 *   brand-hover   #1A7FD6
 *   text          #1D1D1F
 *   text-muted    #6B7280
 *   surface       #FFFFFF
 *   border        #E5E7EB
 *   code-bg       #F4F5F7
 */

:root {
  --portal-brand: #2399ff;
  --portal-brand-hover: #1a7fd6;
  --portal-text: #1d1d1f;
  --portal-text-muted: #6b7280;
  --portal-surface: #ffffff;
  --portal-border: #e5e7eb;
  --portal-code-bg: #f4f5f7;
  --portal-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
}

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

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

body {
  margin: 0;
  font-family: var(--portal-font);
  font-size: 16px;
  line-height: 1.55;
  color: var(--portal-text);
  background: var(--portal-surface);
}

.portal-page {
  max-width: 820px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}

/* Header — logo + wordmark */
.portal-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}

.portal-header__logo {
  height: 32px;
  width: auto;
  display: block;
}

.portal-header__title {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--portal-text);
}

/* Breadcrumb back to portal — for subsites */
.portal-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  font-size: 14px;
  color: var(--portal-text-muted);
}

.portal-crumbs a {
  color: var(--portal-brand);
  text-decoration: none;
}

.portal-crumbs a:hover {
  color: var(--portal-brand-hover);
  text-decoration: underline;
}

.portal-crumbs .sep {
  color: var(--portal-text-muted);
}

/* Intro text under the header */
.portal-intro {
  margin: 0 0 32px;
  font-size: 17px;
  color: var(--portal-text-muted);
  max-width: 640px;
}

.portal-intro a {
  color: var(--portal-brand);
  text-decoration: none;
}

.portal-intro a:hover {
  color: var(--portal-brand-hover);
  text-decoration: underline;
}

/* Card grid for subsite links */
.portal-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 0 0 40px;
}

@media (min-width: 640px) {
  .portal-cards {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  }
}

.portal-card {
  display: block;
  padding: 20px 22px;
  border: 1px solid var(--portal-border);
  border-radius: 10px;
  background: var(--portal-surface);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.portal-card:hover {
  border-color: var(--portal-brand);
  transform: translateY(-1px);
}

.portal-card__title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 600;
  color: var(--portal-text);
}

.portal-card__arrow {
  color: var(--portal-brand);
  font-weight: 400;
  transition: transform 0.15s ease;
}

.portal-card:hover .portal-card__arrow {
  transform: translateX(2px);
}

.portal-card__desc {
  margin: 0;
  font-size: 14px;
  color: var(--portal-text-muted);
  line-height: 1.5;
}

/* Footer */
.portal-footer {
  margin-top: 56px;
  padding-top: 20px;
  border-top: 1px solid var(--portal-border);
  font-size: 13px;
  color: var(--portal-text-muted);
}

.portal-footer a {
  color: var(--portal-brand);
  text-decoration: none;
}

.portal-footer a:hover {
  color: var(--portal-brand-hover);
  text-decoration: underline;
}

.portal-footer .sep {
  margin: 0 8px;
  color: var(--portal-border);
}

/* Generic base typography — used by subsite content as well */
h1,
h2,
h3 {
  color: var(--portal-text);
  letter-spacing: -0.01em;
}

a {
  color: var(--portal-brand);
}

a:hover {
  color: var(--portal-brand-hover);
}

code {
  background: var(--portal-code-bg);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.92em;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}