:root {
    --bg: #00092E;
    --bg-soft: #001364;
    --card: rgba(0, 9, 46, 0.72);
    --card-solid: #000f43;
    --line: rgba(255, 255, 255, 0.12);
    --text: #eef4ff;
    --muted: #a9b7d5;
    --accent: #365EFF;
    --accent-soft: rgba(54, 94, 255, 0.18);
    --danger: #ff6b6b;
    --success: #46d18c;
    --radius: 22px;
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
}

* { box-sizing: border-box; }
html { color-scheme: dark; }
body {
    margin: 0;
    font-family: 'Manrope', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: #00092E;
    background-image:
        radial-gradient(circle at top left, rgba(54, 94, 255, 0.96) 0, rgba(54, 94, 255, 0.58) 18rem, rgba(0, 19, 100, 0.48) 38rem, transparent 64rem),
        linear-gradient(to bottom right, #365EFF 0%, #00092E 38%, #00092E 64%, #001364 100%);
    background-attachment: fixed;
    background-size: cover;
    color: var(--text);
    min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.site-header {
    width: min(1180px, calc(100% - 32px));
    margin: 18px auto 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 18px;
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(0, 9, 46, 0.68);
    backdrop-filter: blur(18px);
    position: sticky;
    top: 12px;
    z-index: 20;
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: 0.02em; }
.brand-mark { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); font-size: 12px; border: 1px solid rgba(54,94,255,.35); }
.nav-actions { display: flex; align-items: center; gap: 14px; font-size: 14px; color: var(--muted); }
.nav-actions a:hover { color: var(--text); }
.language-switcher { display: flex; padding: 4px; border-radius: 999px; background: rgba(255,255,255,.05); border: 1px solid var(--line); }
.lang-link { padding: 5px 8px; border-radius: 999px; font-size: 12px; }
.lang-link.active { color: var(--text); background: var(--accent-soft); }

.page-shell { width: min(1180px, calc(100% - 32px)); margin: 52px auto; }
.page-shell.narrow { width: min(520px, calc(100% - 32px)); }
.site-footer { width: min(1180px, calc(100% - 32px)); margin: 40px auto 24px; color: var(--muted); font-size: 13px; }

.hero { padding: 72px 0 54px; max-width: 760px; }
.hero.compact { padding-top: 38px; }
.eyebrow { color: var(--accent); text-transform: uppercase; letter-spacing: .18em; font-size: 12px; font-weight: 800; margin: 0 0 12px; }
h1 { font-size: clamp(36px, 7vw, 72px); line-height: .96; letter-spacing: -0.06em; margin: 0 0 20px; }
h2 { font-size: clamp(24px, 3vw, 36px); letter-spacing: -0.04em; }
h3 { font-size: 21px; letter-spacing: -0.02em; }
p { color: var(--muted); line-height: 1.7; }
.section-head { display:flex; align-items:end; justify-content:space-between; margin-bottom: 18px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; }
.glass { backdrop-filter: blur(16px); }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 18px; border-radius: 999px; border: 1px solid rgba(54,94,255,.45); background: linear-gradient(180deg, #365EFF, #2442d8); color: white; font-weight: 800; cursor:pointer; font-family: inherit; }
.button:hover { filter: brightness(1.06); }
.button.ghost { background: rgba(255,255,255,.05); border-color: var(--line); color: var(--text); }
.button.small { min-height: 36px; padding: 0 14px; font-size: 13px; }
.button.wide { width: 100%; }

.course-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.course-card { overflow: hidden; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.course-card-image { aspect-ratio: 16/10; background: #001364; overflow:hidden; }
.course-card-image img { width:100%; height:100%; object-fit:cover; }
.course-card-content { padding: 20px; display:grid; gap:16px; }
.course-card h3 { margin: 0; min-height: 56px; }

.course-layout { display: grid; grid-template-columns: minmax(0, 1fr) 350px; gap: 22px; align-items: start; }
.course-main h1 { font-size: clamp(34px, 5vw, 58px); }
.course-hero-image { margin: 24px 0; border-radius: 18px; overflow: hidden; border: 1px solid var(--line); background:#001364; }
.course-hero-image img { width: 100%; max-height: 420px; object-fit: cover; }
.course-description { font-size: 17px; }
.course-sidebar { position: sticky; top: 108px; display: grid; gap: 18px; }
.meta-item { display:grid; gap:6px; padding: 0 0 16px; border-bottom: 1px solid var(--line); }
.meta-item span { color: var(--muted); font-size: 13px; }
.meta-item strong { font-size: 15px; }
.meta-item p { margin: 0; font-size: 14px; }
.module-list { display: grid; gap: 10px; margin-top: 16px; }
.module-row { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 12px; padding: 14px; border-radius: 16px; border: 1px solid var(--line); background: rgba(255,255,255,.035); }
.module-row.locked { opacity: .72; }
.module-row.done { border-color: rgba(70,209,140,.24); background: rgba(70,209,140,.07); }
.module-index { width: 30px; height: 30px; display:grid; place-items:center; border-radius: 50%; background: rgba(255,255,255,.06); color: var(--muted); font-size: 13px; }
.status-pill { padding: 5px 9px; border-radius: 999px; background: rgba(255,255,255,.06); color: var(--muted); font-size: 12px; font-weight: 700; }
.status-pill.active { color: var(--accent); background: var(--accent-soft); }
.status-pill.done { color: var(--success); background: rgba(70,209,140,.12); }
.progress-card { display:grid; gap:10px; }
.progress-label { font-weight: 800; }
.progress-track { height: 10px; background: rgba(255,255,255,.07); border-radius: 999px; overflow:hidden; }
.progress-track span { display:block; height: 100%; background: var(--accent); border-radius: inherit; }
.account-course-button { margin-top: 18px; }

.alert { padding: 14px 16px; border-radius: 16px; margin-bottom: 18px; border: 1px solid var(--line); }
.alert.success { background: rgba(70,209,140,.12); border-color: rgba(70,209,140,.28); }
.alert.error { background: rgba(255,107,107,.10); border-color: rgba(255,107,107,.25); }
.small-text { font-size: 14px; }

.auth-card { width: min(500px, 100%); margin: 0 auto; }
.form-stack { display:grid; gap:16px; }
label, .form-label { display:grid; gap:8px; color: var(--muted); font-size: 14px; font-weight: 700; }
input { width:100%; min-height: 48px; border-radius: 14px; border: 1px solid var(--line); background: rgba(255,255,255,.055); color: var(--text); padding: 0 14px; font: inherit; }
input:focus { outline: 2px solid rgba(54,94,255,.35); border-color: rgba(54,94,255,.7); }
.auth-links { display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap; color: var(--muted); margin-top: 18px; font-size:14px; }
.auth-links a { color: var(--accent); }

.country-select { position: relative; display: grid; gap:8px; }
.country-trigger { width:100%; min-height:48px; border:1px solid var(--line); border-radius:14px; background:rgba(255,255,255,.055); color: var(--text); display:flex; align-items:center; justify-content:space-between; padding: 0 14px; font: inherit; cursor:pointer; }
.country-menu { display:none; position:absolute; z-index:30; top: calc(100% + 8px); left:0; right:0; max-height: 290px; overflow:auto; background:#000f43; border:1px solid var(--line); border-radius:16px; padding:8px; box-shadow: var(--shadow); }
.country-select.open .country-menu { display:block; }
.country-option { width:100%; display:flex; align-items:center; gap:10px; border:0; background:transparent; color:var(--text); padding:10px 12px; border-radius:12px; font:inherit; cursor:pointer; text-align:left; }
.country-option:hover { background:rgba(255,255,255,.06); }
.country-option .fi, .earth-icon { width:18px; height:18px; min-width:18px; display:inline-flex; align-items:center; justify-content:center; border-radius:50%; overflow:hidden; }

.lesson-body { overflow: hidden; }
.lesson-topbar { height: 70px; display:grid; grid-template-columns:auto minmax(0,1fr) auto; align-items:center; gap:14px; padding: 12px 16px; border-bottom:1px solid var(--line); background: rgba(0,9,46,.94); }
.lesson-title-block { min-width:0; display:grid; gap:2px; text-align:center; }
.lesson-title-block span { color:var(--muted); font-size:12px; }
.lesson-title-block strong { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.lesson-shell { height: calc(100vh - 70px); display:grid; grid-template-columns: 300px minmax(0,1fr); }
.lesson-sidebar { border-right:1px solid var(--line); background: rgba(0,13,62,.92); padding:16px; overflow:auto; }
.lesson-sidebar h2 { font-size: 18px; margin: 0 0 14px; }
.lesson-module-link { display:flex; align-items:center; gap:10px; padding:12px; border-radius:14px; margin-bottom:8px; color:var(--muted); background:rgba(255,255,255,.035); border:1px solid transparent; }
.lesson-module-link span { width:26px; height:26px; display:grid; place-items:center; border-radius:50%; background:rgba(255,255,255,.06); font-size:12px; }
.lesson-module-link.active { color:var(--text); border-color:rgba(54,94,255,.42); background:var(--accent-soft); }
.lesson-module-link.done { color:var(--success); }
.lesson-module-link.locked { opacity:.54; }
.lesson-frame-wrap { min-width:0; background:#00092E; padding: 12px; }
.lesson-frame { width:100%; height:100%; border:1px solid var(--line); border-radius:18px; background:#fff; }
.empty-state { height:100%; display:grid; place-items:center; color:var(--muted); }

.account-grid { display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap:18px; }
.muted-card { opacity:.82; }
.danger-card { border-color: rgba(255,107,107,.24); }
.admin-shell { display:grid; grid-template-columns:260px minmax(0,1fr); gap:22px; }
.admin-sidebar { display:grid; gap:12px; align-self:start; position:sticky; top:108px; }
.admin-sidebar a, .admin-sidebar span { padding:10px 12px; border-radius:12px; color:var(--muted); background:rgba(255,255,255,.035); }
.admin-sidebar a:hover { color:var(--text); background:rgba(255,255,255,.07); }
.stats-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-bottom:18px; }
.stat-card { padding:20px; border-radius:18px; border:1px solid var(--line); background:var(--card); }
.stat-card span { color:var(--muted); font-size:13px; }
.stat-card strong { display:block; font-size:34px; margin-top:8px; }

@media (max-width: 900px) {
    .site-header { border-radius: 24px; align-items:flex-start; flex-direction:column; }
    .nav-actions { width:100%; justify-content:space-between; flex-wrap:wrap; }
    .course-grid, .course-layout, .account-grid, .admin-shell, .stats-grid { grid-template-columns: 1fr; }
    .course-sidebar, .admin-sidebar { position: static; }
    .lesson-body { overflow:auto; }
    .lesson-topbar { height:auto; grid-template-columns:1fr; text-align:left; }
    .lesson-title-block { text-align:left; }
    .lesson-shell { height:auto; grid-template-columns:1fr; }
    .lesson-sidebar { order:2; border-right:0; border-top:1px solid var(--line); }
    .lesson-frame-wrap { height: calc(100vh - 150px); min-height: 520px; }
}

@media (max-width: 560px) {
    .page-shell { width: min(100% - 22px, 1180px); margin-top: 28px; }
    h1 { font-size: 38px; }
    .card { padding: 18px; }
    .module-row { grid-template-columns:auto 1fr; }
    .module-row .status-pill { grid-column: 2; justify-self:start; }
}

.admin-page-head,
.admin-section-head,
.admin-head-actions,
.admin-form-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}
.admin-page-head { margin-bottom: 22px; }
.admin-page-head h1 { margin-bottom: 0; }
.admin-head-actions { justify-content: flex-end; }
.admin-sidebar a.active { color: var(--text); background: var(--accent-soft); border: 1px solid rgba(54,94,255,.28); }
.admin-table-wrap { overflow-x: auto; }
.admin-table { width: 100%; border-collapse: collapse; min-width: 780px; }
.admin-table th,
.admin-table td { padding: 14px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; }
.admin-table th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; }
.admin-table td { color: var(--text); font-size: 14px; }
.admin-table code { color: var(--accent); background: rgba(54,94,255,.10); border: 1px solid rgba(54,94,255,.18); padding: 4px 8px; border-radius: 999px; }
.admin-actions { display: flex; gap: 10px; align-items: center; justify-content: flex-end; flex-wrap: wrap; }
.admin-actions a,
.admin-actions button { border: 0; background: rgba(255,255,255,.06); color: var(--text); padding: 8px 11px; border-radius: 999px; font: inherit; font-size: 13px; cursor: pointer; }
.admin-actions a:hover,
.admin-actions button:hover { background: var(--accent-soft); color: var(--accent); }
.admin-status { display: inline-flex; align-items: center; border-radius: 999px; padding: 5px 9px; font-size: 12px; font-weight: 800; }
.admin-status.on { color: var(--success); background: rgba(70,209,140,.12); }
.admin-status.off { color: var(--danger); background: rgba(255,107,107,.12); }
.admin-course-cell { display: flex; align-items: center; gap: 12px; min-width: 220px; }
.admin-course-cell img { width: 52px; height: 42px; object-fit: cover; border-radius: 10px; border: 1px solid var(--line); background: #001364; }
.admin-url-cell { max-width: 380px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--muted) !important; }
.admin-form { gap: 22px; }
.admin-form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.admin-form-grid.two { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.admin-form small { color: var(--muted); font-weight: 500; }
.admin-form textarea,
.admin-form select,
.admin-form input[type="file"] { width: 100%; border-radius: 14px; border: 1px solid var(--line); background: rgba(255,255,255,.055); color: var(--text); padding: 13px 14px; font: inherit; }
.admin-form textarea { resize: vertical; min-height: 110px; }
.checkbox-line { display: flex; align-items: center; gap: 10px; color: var(--text); }
.checkbox-line.align-end { align-self: end; min-height: 48px; }
.checkbox-line input { width: 18px; height: 18px; min-height: 18px; }
.admin-upload-box { display: grid; grid-template-columns: minmax(0,1fr) 220px; gap: 18px; align-items: center; border: 1px solid var(--line); background: rgba(255,255,255,.035); border-radius: 18px; padding: 18px; }
.admin-upload-box p { margin: 6px 0 14px; }
.admin-upload-box img { width: 100%; aspect-ratio: 16/10; object-fit: cover; border-radius: 14px; border: 1px solid var(--line); background: #001364; }
.translation-stack { display: grid; gap: 16px; }
.translation-card { display: grid; gap: 14px; margin: 0; padding: 18px; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.025); }
.translation-card legend { padding: 0 8px; font-weight: 800; color: var(--text); }
.translation-card legend span { color: var(--accent); font-size: 12px; margin-left: 8px; }

@media (max-width: 900px) {
    .admin-form-grid,
    .admin-form-grid.two,
    .admin-upload-box { grid-template-columns: 1fr; }
    .admin-upload-box img { max-width: 260px; }
    .admin-page-head h1 { font-size: 34px; }
}

/* Admin user management */
.stats-grid.stats-grid-five { grid-template-columns: repeat(5, 1fr); }
.admin-dashboard-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 18px; }
.admin-table.compact { min-width: 620px; }
.admin-muted-text { color: var(--muted); font-size: 13px; }
.admin-filter-bar { display: grid; grid-template-columns: minmax(220px, 1fr) 220px auto auto; align-items: end; gap: 14px; margin-bottom: 18px; }
.admin-filter-bar select,
.admin-detail-grid select { width: 100%; min-height: 48px; border-radius: 14px; border: 1px solid var(--line); background: rgba(255,255,255,.055); color: var(--text); padding: 0 14px; font: inherit; }
.admin-detail-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(340px, .85fr); gap: 18px; margin-bottom: 18px; }
.admin-info-list { display: grid; gap: 12px; }
.admin-info-list div { display: grid; gap: 4px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.admin-info-list span { color: var(--muted); font-size: 13px; }
.admin-info-list strong { font-size: 15px; overflow-wrap: anywhere; }
.admin-progress-track { margin-bottom: 18px; }
.admin-danger-zone { margin-top: 18px; }
.admin-danger-zone .button { border-color: rgba(255,107,107,.32); color: var(--danger); }
.admin-danger-zone .button:hover { background: rgba(255,107,107,.10); }

@media (max-width: 1100px) {
    .stats-grid.stats-grid-five { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
    .admin-filter-bar,
    .admin-detail-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
    .stats-grid.stats-grid-five { grid-template-columns: 1fr; }
}

/* Account actions and password reset */
.account-form { margin-top: 16px; }
.account-danger-card { grid-column: 1 / -1; }
.danger-button { border-color: rgba(255,107,107,.36) !important; color: var(--danger) !important; }
.danger-button:hover { background: rgba(255,107,107,.10) !important; }