/* ==========================================================================
   Vault — AWS Console / Cloudscape-style design system
   Hand-crafted CSS, no framework.
   ========================================================================== */

:root {
  /* Core palette */
  --navy: #232F3E;
  --navy-dark: #16191F;
  --orange: #FF9900;
  --orange-dark: #EC7211;
  --bg: #F2F3F3;
  --bg-white: #FFFFFF;
  --text: #16191F;
  --text-secondary: #5F6B7A;
  --border: #D5DBDB;
  --border-dark: #879196;
  --link: #0972D3;
  --link-hover: #033160;
  --link-visited: #7D2CA0;

  /* Status colors — exact AWS Console values */
  --status-green: #1D8102;
  --status-red: #D91515;
  --status-amber: #B25400;
  --status-blue: #0972D3;

  --info-bg: #F1FAFF;
  --info-border: #0972D3;

  --warning-bg: #FFF6E6;
  --warning-border: #B25400;

  --error-bg: #FDF3F1;
  --error-border: #D91515;

  --success-bg: #EEFCF3;
  --success-border: #1D8102;

  --font: "Helvetica Neue", "Amazon Ember", Roboto, Arial, sans-serif;
  --font-mono: "Monaco", "Consolas", "SFMono-Regular", monospace;

  --radius: 2px;
  --shadow-panel: 0 1px 1px 0 rgba(0,7,22,0.16);
  --shadow-dropdown: 0 2px 8px 0 rgba(0,7,22,0.3);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.4;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--link);
  text-decoration: none;
}
a:hover { text-decoration: underline; color: var(--link-hover); }
a:visited { color: var(--link-visited); }

/* ---------------------------------------------------------------- Top nav */

.topnav {
  background: var(--navy);
  color: #fff;
  height: 40px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  font-size: 14px;
}

.topnav__brand {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 12px;
  height: 100%;
  border-right: 1px solid #3B4756;
  margin-right: 8px;
}

.topnav__icon {
  width: 20px;
  height: 20px;
  background: var(--orange);
  border-radius: 3px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 11px;
  color: var(--navy-dark);
  flex-shrink: 0;
}

.topnav__product {
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.2px;
  color: #fff;
}

.topnav__org {
  color: #B6BABF;
  font-size: 13px;
  padding-left: 8px;
}

.topnav__spacer { flex: 1; }

.topnav__region {
  font-size: 13px;
  color: #D5DBDB;
  padding: 6px 12px;
  border: 1px solid #3B4756;
  border-radius: 2px;
  margin-right: 8px;
  cursor: default;
}

.topnav__region .dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--status-green);
  margin-right: 6px;
}

/* ---------------------------------------------------------------- Breadcrumb */

.breadcrumb-row {
  position: fixed;
  top: 40px;
  left: 0;
  right: 0;
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
  height: 33px;
  display: flex;
  align-items: center;
  padding: 0 20px;
  font-size: 12px;
  z-index: 900;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
}

.breadcrumb a { color: var(--link); }
.breadcrumb .sep { color: var(--border-dark); }
.breadcrumb .current { color: var(--text); font-weight: 400; }

/* ---------------------------------------------------------------- Layout shell */

.shell {
  display: flex;
  padding-top: 73px;
  min-height: 100vh;
}

.sidebar {
  width: 230px;
  flex-shrink: 0;
  background: var(--bg-white);
  border-right: 1px solid var(--border);
  position: fixed;
  top: 73px;
  bottom: 0;
  left: 0;
  overflow-y: auto;
  padding: 16px 0;
}

.sidebar__section-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--text-secondary);
  padding: 8px 20px;
  margin-top: 4px;
}

.sidebar nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sidebar nav a {
  display: block;
  padding: 8px 20px;
  color: var(--text);
  font-size: 14px;
  border-left: 3px solid transparent;
}

.sidebar nav a:hover {
  background: #F2F3F3;
  text-decoration: none;
  color: var(--link);
}

.sidebar nav a.active {
  border-left-color: var(--orange);
  background: #F2F8FD;
  color: var(--link);
  font-weight: 700;
}

.main {
  margin-left: 230px;
  flex: 1;
  padding: 24px 32px 80px;
  max-width: 1160px;
}

/* ---------------------------------------------------------------- Page header */

.page-header {
  margin-bottom: 20px;
}

.page-header__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.page-header h1 {
  font-size: 24px;
  font-weight: 400;
  margin: 0 0 4px 0;
  color: var(--navy-dark);
}

.page-header .subtitle {
  color: var(--text-secondary);
  font-size: 14px;
  margin: 0;
  max-width: 720px;
}

.page-header__actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

section.content-section {
  margin-bottom: 40px;
  scroll-margin-top: 90px;
}

section.content-section > h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--navy-dark);
  margin: 0 0 4px 0;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

section.content-section > .section-desc {
  color: var(--text-secondary);
  margin: 8px 0 16px 0;
  max-width: 760px;
}

h3.subhead {
  font-size: 15px;
  font-weight: 700;
  color: var(--navy-dark);
  margin: 24px 0 8px 0;
}

/* ---------------------------------------------------------------- Stat boxes */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-bottom: 24px;
}

.stat-box {
  background: var(--bg-white);
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stat-box__label {
  font-size: 12px;
  color: var(--text-secondary);
  text-transform: none;
}

.stat-box__value {
  font-size: 20px;
  font-weight: 400;
  color: var(--navy-dark);
  display: flex;
  align-items: center;
  gap: 8px;
}

.stat-box__sub {
  font-size: 12px;
  color: var(--text-secondary);
}

@media (max-width: 900px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---------------------------------------------------------------- Status indicator */

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.status-dot--green { background: var(--status-green); }
.status-dot--red { background: var(--status-red); }
.status-dot--amber { background: var(--status-amber); }
.status-dot--blue { background: var(--status-blue); }

.status-text {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 400;
}
.status-text--green { color: var(--status-green); }
.status-text--red { color: var(--status-red); }
.status-text--amber { color: var(--status-amber); }
.status-text--blue { color: var(--status-blue); }

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 400;
  line-height: 18px;
}
.status-badge--green { background: #EEFCF3; color: var(--status-green); }
.status-badge--red { background: #FDF3F1; color: var(--status-red); }
.status-badge--amber { background: #FFF6E6; color: var(--status-amber); }
.status-badge--blue { background: #F1FAFF; color: var(--status-blue); }
.status-badge--grey { background: #F2F3F3; color: var(--text-secondary); }

/* ---------------------------------------------------------------- Info panel */

.info-panel {
  background: var(--info-bg);
  border: 1px solid #B7D8EC;
  border-left: 4px solid var(--info-border);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin: 12px 0 20px 0;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.info-panel__icon {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--info-border);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
  font-style: normal;
}

.info-panel__body { flex: 1; font-size: 13px; color: var(--text); }
.info-panel__body strong { color: var(--navy-dark); }
.info-panel__body p { margin: 0 0 6px 0; }
.info-panel__body p:last-child { margin-bottom: 0; }
.info-panel__title { font-weight: 700; margin-bottom: 4px; color: var(--navy-dark); }

.warning-panel {
  background: var(--warning-bg);
  border: 1px solid #F2C87A;
  border-left: 4px solid var(--warning-border);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin: 12px 0 20px 0;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}
.warning-panel__icon {
  flex-shrink: 0;
  width: 16px; height: 16px;
  color: var(--warning-border);
  font-weight: 700;
  margin-top: 1px;
}
.warning-panel__body { flex: 1; font-size: 13px; color: var(--text); }
.warning-panel__body strong { color: var(--navy-dark); }

.error-banner {
  background: var(--error-bg);
  border: 1px solid #F5B4A9;
  border-left: 4px solid var(--error-border);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin: 12px 0;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 13px;
}
.error-banner__icon {
  color: var(--error-border);
  font-weight: 700;
  flex-shrink: 0;
}
.error-banner__body strong { display: block; color: var(--error-border); margin-bottom: 2px; }

/* ---------------------------------------------------------------- Panels/cards */

.awspanel {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-panel);
  margin-bottom: 20px;
}

.awspanel__header {
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.awspanel__header h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--navy-dark);
}

.awspanel__body { padding: 16px 18px; }

/* ---------------------------------------------------------------- Tables */

table.awstable {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-white);
  font-size: 13px;
}

table.awstable th {
  text-align: left;
  background: #FAFAFA;
  color: var(--text-secondary);
  font-weight: 700;
  font-size: 12px;
  padding: 8px 12px;
  border-bottom: 2px solid var(--border);
  border-top: 1px solid var(--border);
  white-space: nowrap;
  cursor: default;
  user-select: none;
}

table.awstable th .sort-arrow {
  display: inline-block;
  margin-left: 4px;
  color: var(--border-dark);
  font-size: 10px;
}

table.awstable td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

table.awstable tbody tr:hover {
  background: #F5FAFF;
}

table.awstable code {
  background: #F2F3F3;
  padding: 1px 5px;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
}

/* ---------------------------------------------------------------- Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 700;
  padding: 5px 16px;
  border-radius: 2px;
  border: 1px solid var(--border-dark);
  background: var(--bg-white);
  color: var(--link);
  cursor: pointer;
  line-height: 20px;
  height: 32px;
}

.btn:hover { background: #F1FAFF; border-color: var(--link); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn--primary {
  background: var(--orange);
  border-color: var(--orange-dark);
  color: #0F1B2A;
}
.btn--primary:hover { background: #EC7211; border-color: #B25900; }
.btn--primary:disabled { background: #FFD9A0; border-color: #FFD9A0; color: #8D6E3F; }

/* ---------------------------------------------------------------- Form controls */

.form-field { margin-bottom: 14px; }
.form-field label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-dark);
  margin-bottom: 4px;
}
.form-field .hint {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.input, textarea.input {
  width: 100%;
  font-family: var(--font);
  font-size: 14px;
  padding: 7px 10px;
  border: 1px solid var(--border-dark);
  border-radius: 2px;
  background: #fff;
  color: var(--text);
}
.input:focus, textarea.input:focus {
  outline: 2px solid var(--link);
  outline-offset: -1px;
  border-color: var(--link);
}

/* ---------------------------------------------------------------- Tag list */

.tag-list { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  background: #F2F3F3;
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 2px 8px;
  font-size: 12px;
  color: var(--text);
  font-family: var(--font-mono);
}

/* ---------------------------------------------------------------- Invoke / demo panel */

.invoke-panel__label {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  margin: 16px 0 6px 0;
}

.invoke-response {
  margin-top: 18px;
  background: #0F1B2A;
  border-radius: 2px;
  overflow: hidden;
  display: none;
}

.invoke-response.is-visible { display: block; }

.invoke-response__bar {
  background: #16232F;
  color: #B6BABF;
  font-size: 12px;
  padding: 8px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #2B3B4A;
}

.invoke-response__body {
  padding: 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: #D5DBDB;
}

.log-field {
  margin-bottom: 12px;
}
.log-field__key {
  color: #7EC5FF;
  margin-bottom: 3px;
}
.log-field__value {
  color: #ECECEC;
  white-space: pre-wrap;
  word-break: break-word;
  padding-left: 8px;
  border-left: 2px solid #2B3B4A;
}
.log-field__value--redacted {
  color: #FFD277;
}
.log-field__value--answer {
  color: #A7E3B0;
}

.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255,255,255,0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  vertical-align: middle;
}
.btn--primary .spinner {
  border-color: rgba(15,27,42,0.35);
  border-top-color: #0F1B2A;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px;
  color: var(--text-secondary);
  font-size: 13px;
}

/* ---------------------------------------------------------------- Changelog */

.changelog-item {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
.changelog-item:first-child { padding-top: 0; }
.changelog-item:last-child { border-bottom: none; }

.changelog-item__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}

.changelog-item__version {
  font-weight: 700;
  font-size: 15px;
  color: var(--navy-dark);
}

.changelog-item__date {
  font-size: 12px;
  color: var(--text-secondary);
}

.changelog-item__latest {
  background: var(--orange);
  color: #0F1B2A;
  font-size: 11px;
  font-weight: 700;
  padding: 1px 8px;
  border-radius: 10px;
  text-transform: uppercase;
}

.changelog-item ul {
  margin: 6px 0 0 0;
  padding-left: 20px;
}
.changelog-item li { margin-bottom: 4px; font-size: 13.5px; }

/* ---------------------------------------------------------------- Diagram */

.diagram-frame {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 8px;
  overflow-x: auto;
  margin: 16px 0;
}
.diagram-frame img { display: block; width: 100%; min-width: 900px; height: auto; }

/* ---------------------------------------------------------------- Trade-off grid */

.tradeoff-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 16px 0;
}
@media (max-width: 900px) {
  .tradeoff-grid { grid-template-columns: 1fr; }
}

.tradeoff-card {
  border: 1px solid var(--border);
  border-radius: 2px;
  background: #fff;
  padding: 12px 14px;
}
.tradeoff-card__title {
  font-weight: 700;
  color: var(--navy-dark);
  font-size: 13.5px;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.tradeoff-card p { font-size: 13px; margin: 0 0 6px 0; color: var(--text); }
.tradeoff-card p:last-child { margin-bottom: 0; }

/* ---------------------------------------------------------------- Footer */

.page-footer {
  border-top: 1px solid var(--border);
  margin-top: 40px;
  padding-top: 16px;
  font-size: 12px;
  color: var(--text-secondary);
}

/* ---------------------------------------------------------------- Utility */

.mono { font-family: var(--font-mono); }
.text-secondary { color: var(--text-secondary); }
.small { font-size: 12px; }
.mt-0 { margin-top: 0; }

@media (max-width: 800px) {
  .sidebar { display: none; }
  .main { margin-left: 0; padding: 20px; }
  .stat-grid { grid-template-columns: 1fr; }
}