.admin-body { background: #f3f7fa; }
.admin-login { min-height: 100vh; display: grid; place-items: center; padding: 30px; background: var(--navy-dark); position: relative; overflow: hidden; }
.admin-login::before { content: ''; position: absolute; width: 85px; height: 130%; right: 12%; top: -15%; background: var(--cyan); transform: skewX(-35deg); }
.admin-login::after { content: ''; position: absolute; width: 150px; height: 130%; right: -5%; top: -15%; background: var(--navy); transform: skewX(-35deg); border-left: 18px solid white; }
.admin-login-card { width: min(470px,100%); background: white; padding: 48px; position: relative; z-index: 1; box-shadow: 22px 22px 0 rgba(8,175,230,.22); }
.admin-label { display: inline-block; margin: 46px 0 11px; color: var(--cyan-dark); font-size: 10px; letter-spacing: .18em; font-weight: 900; }
.admin-login h1 { color: var(--navy); margin: 0 0 30px; font-size: 48px; line-height: .95; font-style: italic; text-transform: uppercase; }
.back-link { display: inline-block; margin-top: 12px; color: var(--muted); font-size: 12px; text-decoration: none; }
.admin-app { min-height: 100vh; display: grid; grid-template-columns: 285px 1fr; }
.admin-sidebar { height: 100vh; position: sticky; top: 0; padding: 30px 24px; background: var(--navy-dark); color: white; display: flex; flex-direction: column; }
.admin-sidebar .brand-lockup strong { color: white; }
.admin-sidebar .brand-lockup span { color: #8fb3d1; }
.admin-role { margin: 48px -24px 22px; padding: 20px 28px; background: rgba(255,255,255,.06); border-left: 4px solid var(--cyan); }
.admin-role small { display: block; color: #7ea4c4; font-size: 9px; letter-spacing: .15em; }
.admin-role strong { display: block; margin-top: 7px; font-size: 14px; }
.admin-nav { display: grid; gap: 6px; }
.admin-nav button { display: flex; align-items: center; gap: 13px; width: 100%; border: 0; padding: 13px; color: #9eb8cf; background: transparent; text-align: left; font-weight: 800; }
.admin-nav button span { color: #4f7598; font-size: 10px; }
.admin-nav button b { margin-left: auto; min-width: 23px; height: 23px; display: grid; place-items: center; background: var(--cyan); color: white; font-size: 10px; border-radius: 50%; }
.admin-nav button.active, .admin-nav button:hover { background: rgba(255,255,255,.08); color: white; }
.admin-sidebar-bottom { margin-top: auto; display: grid; gap: 14px; border-top: 1px solid rgba(255,255,255,.12); padding-top: 20px; }
.admin-sidebar-bottom a, .admin-sidebar-bottom button { border: 0; background: transparent; color: #a9c1d5; text-decoration: none; text-align: left; font-size: 12px; padding: 0; }
.admin-main { min-width: 0; }
.admin-header { min-height: 112px; padding: 24px 42px; background: white; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; }
.admin-header span, .admin-season small { display: block; color: var(--cyan-dark); font-size: 9px; font-weight: 900; letter-spacing: .15em; }
.admin-header h1 { color: var(--navy); font-size: 28px; margin: 7px 0 0; }
.admin-season { border-left: 1px solid var(--line); padding-left: 28px; text-align: right; }
.admin-season strong { display: block; color: var(--navy); font-size: 28px; font-style: italic; }
.admin-content { max-width: 1450px; margin: 0 auto; padding: 34px 42px 60px; }
.admin-summary { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.admin-summary-card { min-height: 140px; padding: 23px; background: white; border: 1px solid var(--line); position: relative; overflow: hidden; }
.admin-summary-card::after { content: ''; position: absolute; right: -28px; top: -35px; width: 40px; height: 140px; background: var(--pale); transform: skewX(-30deg); }
.admin-summary-card span { color: var(--muted); font-size: 10px; letter-spacing: .1em; font-weight: 900; }
.admin-summary-card strong { display: block; margin-top: 18px; color: var(--navy); font-size: 44px; font-style: italic; }
.admin-summary-card.alert strong { color: var(--cyan-dark); }
.admin-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 22px; margin-top: 22px; align-items: start; }
.admin-section { background: white; border: 1px solid var(--line); }
.admin-section-head { min-height: 70px; padding: 18px 22px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; }
.admin-section-head h2 { color: var(--navy); margin: 0; font-size: 18px; }
.admin-section-head p { color: var(--muted); margin: 4px 0 0; font-size: 11px; }
.admin-section-body { padding: 22px; }
.request-list { display: grid; gap: 10px; }
.request-card { display: grid; grid-template-columns: 44px 1fr auto; align-items: center; gap: 13px; padding: 14px; border: 1px solid var(--line); }
.request-avatar { width: 44px; height: 44px; display: grid; place-items: center; background: var(--navy); color: white; font-size: 11px; font-weight: 900; }
.request-info strong { display: block; color: var(--navy); font-size: 13px; }
.request-info span { color: var(--muted); font-size: 11px; }
.request-actions { display: flex; gap: 7px; }
.request-actions button { border: 0; padding: 8px 11px; font-size: 10px; font-weight: 900; }
.approve { background: var(--navy); color: white; }
.reject { background: #f3f6f8; color: var(--muted); }
.user-table { width: 100%; border-collapse: collapse; }
.user-table th, .user-table td { padding: 12px 9px; border-bottom: 1px solid var(--line); text-align: left; font-size: 12px; }
.user-table th { color: var(--muted); font-size: 9px; letter-spacing: .08em; }
.user-table strong { color: var(--navy); }
.state-label { display: inline-flex; padding: 5px 8px; font-size: 9px; font-weight: 900; text-transform: uppercase; }
.state-label.approved { color: #0a7257; background: #e5f7f1; }
.state-label.pending { color: #986d00; background: #fff7dc; }
.state-label.rejected { color: #a34545; background: #ffeded; }
.state-label.draft { color: #6f5d22; background: #fff5ce; }
.state-label.open { color: #087b5b; background: #e3f8f1; }
.state-label.finished { color: #53697c; background: #edf2f6; }
.admin-form textarea { min-height: 105px; resize: vertical; }
.admin-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.admin-problems { display: grid; gap: 9px; }
.admin-problem { display: grid; grid-template-columns: 48px 1fr auto; align-items: center; gap: 12px; padding: 13px; border: 1px solid var(--line); }
.admin-problem b { width: 42px; height: 42px; display: grid; place-items: center; background: var(--navy); color: white; font-style: italic; }
.admin-problem strong { color: var(--navy); font-size: 13px; }
.admin-problem span { color: var(--muted); font-size: 11px; }
.admin-empty { padding: 26px; color: var(--muted); text-align: center; font-size: 12px; }
.problem-form-actions { display: flex; flex-wrap: wrap; gap: 10px; }
#problem-form textarea[name="tests"], #problem-form textarea[name="samples"] { min-height: 160px; font-family: monospace; text-transform: none; }
#problem-form { scroll-margin-top: 24px; }
.contest-admin-list, .participant-list { display: grid; gap: 10px; }
.contest-admin-card { padding: 16px; border: 1px solid var(--line); display: grid; grid-template-columns: 1fr auto; gap: 12px 18px; align-items: center; }
.contest-admin-card.selected { border-color: var(--cyan); box-shadow: inset 4px 0 0 var(--cyan); }
.contest-admin-card h3 { margin: 9px 0 4px; color: var(--navy); font-size: 15px; }
.contest-admin-card p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.45; }
.contest-admin-card .state-label { width: max-content; }
.contest-admin-meta { display: flex; gap: 12px; color: var(--muted); font-size: 10px; }
.contest-admin-actions { grid-row: 1 / span 2; grid-column: 2; display: grid; gap: 8px; }
.participant-row { min-height: 58px; padding: 11px 13px; border: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 15px; }
.participant-row strong, .contest-picker strong { display: block; color: var(--navy); font-size: 13px; }
.participant-row span, .contest-picker span { display: block; margin-top: 4px; color: var(--muted); font-size: 10px; }
.participant-row > .state-label { margin: 0; color: #0a7257; }
.contest-picker { margin-bottom: 22px; padding: 18px 22px; background: white; border: 1px solid var(--line); display: grid; grid-template-columns: minmax(260px, .55fr) 1fr; align-items: center; gap: 24px; }
.contest-picker label { margin: 0; }
.language-fieldset { margin: 0 0 18px; padding: 14px; border: 1px solid var(--line); }
.language-fieldset legend { padding: 0 6px; color: var(--navy); font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.language-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.language-check { display: flex; align-items: center; gap: 8px; margin: 0; padding: 9px 10px; background: var(--pale); cursor: pointer; }
.language-check input { width: auto; margin: 0; }
.language-check span { color: var(--navy); font-size: 11px; }

@media (max-width: 1050px) {
  .admin-app { grid-template-columns: 220px 1fr; }
  .admin-sidebar { width: 220px; }
  .admin-summary { grid-template-columns: repeat(2,1fr); }
  .admin-grid { grid-template-columns: 1fr; }
  .admin-content { padding: 28px 25px 50px; }
}
@media (max-width: 720px) {
  .admin-app { grid-template-columns: 1fr; }
  .admin-sidebar { position: static; width: auto; height: auto; }
  .admin-role, .admin-sidebar-bottom { display: none; }
  .admin-nav { margin-top: 22px; grid-template-columns: repeat(4,1fr); }
  .admin-nav button { justify-content: center; }
  .admin-nav button span { display: none; }
  .admin-header { padding: 22px; }
  .admin-season { display: none; }
  .admin-summary { grid-template-columns: 1fr 1fr; }
  .admin-content { padding: 20px 14px 40px; }
  .admin-form .row { grid-template-columns: 1fr; }
  .request-card { grid-template-columns: 40px 1fr; }
  .request-actions { grid-column: 1 / -1; }
  .contest-picker, .language-grid { grid-template-columns: 1fr; }
  .contest-admin-card { grid-template-columns: 1fr; }
  .contest-admin-actions { grid-row: auto; grid-column: auto; }
}