*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #fff; --surface: #fff; --surface-muted: #f5f4ff; --border: #e7e6f5; --sidebar-bg: #14181f;
  --text-primary: #0b0a23; --text-secondary: #3b3a57; --text-muted: #6b6a85;
  --accent: #2f27ce; --accent-600: #3d34e0; --accent-light: #f5f4ff; --accent-2: #b950e9; --accent-2-light: #f0dcfb;
  --danger: #d6322f; --danger-light: #fdecec; --amber: #d98414; --amber-light: #ffe9c9; --success-light: #e6f6ec; --success: #1f7a45;
  --shadow-sm: 0 2px 8px rgba(20,12,80,.06); --shadow-md: 0 18px 50px -22px rgba(38,24,140,.35); --shadow-lg: 0 40px 90px -40px rgba(38,24,140,.45);
  --r-lg: 26px; --r-md: 18px; --r-sm: 12px;
  --font-display: 'Baloo 2', system-ui, sans-serif; --font-body: 'Inter', system-ui, sans-serif;
}
body { font-family: var(--font-body); background: var(--bg); color: var(--text-primary); }
h1, h2, h3 { font-family: var(--font-display); letter-spacing: -0.01em; }
button, input, select, textarea { font-family: inherit; font-size: 1rem; }
a { color: var(--accent); text-decoration: none; }

.layout { display: flex; height: 100vh; overflow: hidden; }
.sidebar { width: 228px; background: var(--sidebar-bg); display: flex; flex-direction: column; padding: 24px 12px; gap: 4px; flex-shrink: 0; }
.sidebar img { height: 28px; width: auto; align-self: flex-start; margin: 4px 12px 20px; }
.nav { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.nav a, .nav button { display: block; padding: 10px 12px; border-radius: 8px; border: 0; background: transparent; color: rgba(255,255,255,.55); font-size: 14px; text-align: left; cursor: pointer; position: relative; transition: all .15s; }
.nav a:hover, .nav button:hover { background: rgba(255,255,255,.07); color: #fff; }
.nav a.active { background: rgba(255,255,255,.12); color: #fff; font-weight: 600; }
.nav a.active::before { content: ''; position: absolute; left: 0; top: 4px; width: 3px; height: 32px; background: var(--accent-2); border-radius: 0 2px 2px 0; }
.sidebar-footer { border-top: 1px solid rgba(255,255,255,.08); padding-top: 12px; display: flex; flex-direction: column; gap: 2px; }
.role-label { padding: 8px 12px; color: rgba(255,255,255,.35); font-size: 11px; letter-spacing: .06em; text-transform: uppercase; font-weight: 600; }
.content { flex: 1; overflow-y: auto; padding: 2.5rem 2rem 4rem; }
.container { max-width: 960px; margin: 0 auto; display: flex; flex-direction: column; gap: 1.5rem; }
h1 { font-size: 1.75rem; font-weight: 800; }
.muted { color: var(--text-muted); font-size: .9rem; }
.back { font-weight: 600; font-size: .9rem; }

.card { background: var(--surface); border-radius: var(--r-lg); border: 1px solid var(--border); box-shadow: var(--shadow-sm); padding: 24px; }
.card h3 { font-size: 1.05rem; margin-bottom: .75rem; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.subject-card { display: flex; flex-direction: column; gap: 14px; text-decoration: none; color: inherit; border-radius: var(--r-lg); padding: 22px; border: 1px solid var(--border); box-shadow: var(--shadow-sm); transition: transform .15s, box-shadow .15s; background: var(--tint); }
.subject-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.subject-icon { width: 56px; height: 56px; border-radius: var(--r-md); background: var(--color); color: #fff; display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-weight: 800; font-size: 1.5rem; }
.subject-name { font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.stat { background: var(--accent-light); border-radius: var(--r-md); padding: 12px; text-align: center; }
.stat b { display: block; font-family: var(--font-display); font-weight: 800; font-size: 1.4rem; color: var(--accent); }
.stat span { font-size: .75rem; color: var(--text-muted); font-weight: 600; }

.badge { display: inline-flex; align-items: center; padding: 3px 10px; border-radius: 20px; font-size: .75rem; font-weight: 700; background: var(--accent-light); color: var(--accent); }
.badge.new { background: var(--amber-light); color: var(--amber); }
.badge.warn { background: var(--amber-light); color: var(--amber); }
.tabs { display: flex; gap: 8px; }
.tab { border: 1px solid var(--border); background: transparent; border-radius: 999px; padding: 8px 18px; font-weight: 600; cursor: pointer; color: var(--text-secondary); }
.tab.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.row { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px 20px; border: 1px solid var(--border); border-radius: var(--r-md); background: var(--surface); color: inherit; }
a.row:hover { box-shadow: var(--shadow-sm); }
.list { display: flex; flex-direction: column; gap: 10px; }
.row-title { font-weight: 600; }

.btn { background: var(--accent); color: #fff; border: 0; border-radius: var(--r-md); padding: 10px 20px; font-weight: 700; font-size: .9rem; cursor: pointer; }
.btn:hover { background: var(--accent-600); }
.btn.secondary { background: transparent; color: var(--text-primary); border: 1px solid var(--border); }
.btn.danger { background: transparent; color: var(--danger); border: 1px solid var(--danger-light); }
.btn.small { padding: 6px 12px; font-size: .8rem; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
input, select, textarea { border: 1px solid var(--border); border-radius: var(--r-sm); padding: 10px 12px; width: 100%; background: #fff; color: var(--text-primary); }
label { display: flex; flex-direction: column; gap: 6px; font-weight: 600; font-size: .85rem; color: var(--text-secondary); }
.filters { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }
.error { background: var(--danger-light); color: var(--danger); border-radius: var(--r-sm); padding: .75rem 1rem; font-size: .9rem; }
.notice { background: var(--success-light); color: var(--success); border-radius: var(--r-sm); padding: .75rem 1rem; font-weight: 600; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th { text-align: left; background: var(--surface-muted); color: var(--text-muted); font-size: .75rem; text-transform: uppercase; letter-spacing: .04em; padding: 10px 12px; }
td { padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }

.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--surface-muted); padding: 16px; }
.login-card { width: 100%; max-width: 420px; background: #fff; border-radius: var(--r-lg); border: 1px solid var(--border); box-shadow: var(--shadow-lg); padding: 36px; display: flex; flex-direction: column; gap: 16px; }
.login-card img { height: 36px; align-self: flex-start; background: var(--sidebar-bg); padding: 8px 12px; border-radius: var(--r-sm); }

.term-row, .task-row { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem 1rem; padding: .6rem 0; border-bottom: 1px solid var(--border); }
.term-row:last-child, .task-row:last-child { border-bottom: 0; }
.task-row { grid-template-columns: auto 1fr 1fr; }
.term-main { display: flex; flex-direction: column; gap: .2rem; }
.term-original { font-weight: 600; }
.term-translation { font-weight: 600; }
.hint { font-size: .85rem; color: var(--text-muted); }
.article { font-weight: 700; margin-right: 4px; }
.article-der { color: #3498db; } .article-die { color: #e74c3c; } .article-das { color: #27ae60; }
.help-steps { grid-column: 1 / -1; background: var(--accent-light); border-radius: var(--r-sm); padding: 10px 14px; font-size: .9rem; }
.explanation-list { padding-left: 1.2rem; display: flex; flex-direction: column; gap: .4rem; }
.letters { display: flex; flex-wrap: wrap; gap: 6px; }
.letters a { padding: 4px 10px; border-radius: 8px; background: var(--accent-light); font-weight: 700; font-size: .85rem; }
.word-row { padding: .8rem 0; border-bottom: 1px solid var(--border); display: grid; grid-template-columns: 1fr 1fr; gap: .3rem 1rem; }
.letter-head { font-family: var(--font-display); font-weight: 800; font-size: 1.2rem; color: var(--accent); margin: 1rem 0 .25rem; }
.edit-block { display: flex; flex-direction: column; gap: 8px; padding: 12px 0; border-bottom: 1px solid var(--border); }
.edit-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }

@media (max-width: 760px) {
  .layout { flex-direction: column; height: auto; overflow: visible; }
  .sidebar { width: 100%; flex-direction: row; align-items: center; flex-wrap: wrap; padding: 12px; }
  .sidebar img { margin: 0 12px 0 0; }
  .nav { flex-direction: row; flex-wrap: wrap; }
  .sidebar-footer { border: 0; padding: 0; flex-direction: row; align-items: center; }
  .content { padding: 1.25rem 1rem 3rem; }
  .term-row, .task-row, .word-row, .edit-grid { grid-template-columns: 1fr; }
}
.help-steps { white-space: pre-line; }

/* ── Alignment with the Superdesign drafts ─────────────────────────────── */
.container { max-width: 1160px; }
.topbar { display: flex; align-items: center; justify-content: flex-end; gap: 14px; margin-bottom: -.5rem; }
.topbar-spacer { flex: 1; }
.chip { background: var(--accent-light); color: var(--accent); font-weight: 600; font-size: .85rem; padding: 6px 14px; border-radius: 999px; }
.user-chip { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: .9rem; }
.avatar { width: 36px; height: 36px; border-radius: 50%; background: linear-gradient(150deg, #dedcff, var(--accent-2-light)); color: var(--accent); display: inline-flex; align-items: center; justify-content: center; font-family: var(--font-display); font-weight: 800; font-size: .8rem; }
.nav a, .nav-logout { display: flex; align-items: center; gap: 10px; }
.nav-logout { padding: 10px 12px; border-radius: 8px; border: 0; background: transparent; color: rgba(255,255,255,.45); font-size: 14px; cursor: pointer; text-align: left; transition: all .15s; }
.nav-logout:hover { background: rgba(255,255,255,.07); color: #fff; }
.back { display: inline-flex; align-items: center; gap: 4px; }
h1 { line-height: 1.2; }
.small { font-size: .8rem; }
.center { text-align: center; }
.italic { font-style: italic; }

.subject-card { background: #fff; gap: 18px; padding: 24px; }
.subject-card-top { display: flex; align-items: flex-start; justify-content: space-between; }
.subject-icon { border-radius: var(--r-md); box-shadow: var(--shadow-sm); }
.subject-icon svg { display: block; }
.stats.two { grid-template-columns: repeat(2, 1fr); }
.stats.three { grid-template-columns: repeat(3, 1fr); }
.stat { padding: 14px 12px; }
.stat span { text-transform: uppercase; letter-spacing: .05em; font-size: .7rem; }
.stat.amber { background: var(--amber-light); }
.stat.amber b, .stat.amber span { color: var(--amber); }
.badge.new { letter-spacing: .04em; }
.folder-head { display: flex; align-items: center; gap: 18px; }
.segmented { display: inline-flex; background: var(--surface-muted); border-radius: 999px; padding: 4px; align-self: flex-start; }
.segment { border: 0; background: transparent; border-radius: 999px; padding: 8px 22px; font-weight: 600; color: var(--text-muted); cursor: pointer; }
.segment.active { background: var(--accent); color: #fff; box-shadow: var(--shadow-sm); }
.page-row { display: flex; align-items: center; gap: 16px; padding: 18px 22px; border: 1px solid var(--border); border-radius: var(--r-lg); background: #fff; color: inherit; transition: box-shadow .15s; }
.page-row:hover { box-shadow: var(--shadow-sm); }
.page-row-icon { width: 40px; height: 40px; border-radius: 50%; background: var(--success-light); color: #2e9e5b; display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; }
.page-row-main { flex: 1; display: flex; flex-direction: column; gap: 4px; }
.row-title { font-weight: 700; display: flex; align-items: center; gap: 10px; }
.subject-chip { font-weight: 700; margin-left: 12px; }
.chevron { color: var(--text-muted); opacity: .6; }

.card.flush { padding: 0; overflow: hidden; }
.letters { display: flex; flex-wrap: wrap; gap: 6px; padding: 16px 20px; border-bottom: 1px solid var(--border); }
.letter-head { background: var(--surface-muted); padding: 14px 24px; font-family: var(--font-display); font-weight: 800; font-size: 1.1rem; color: var(--accent); border-bottom: 1px solid var(--border); margin: 0; }
.word-row { padding: 18px 24px; align-items: center; }
.word-line { display: flex; align-items: baseline; gap: 6px; font-size: 1.05rem; }
.word-line .article { margin: 0; }
.sources { font-size: .8rem; margin-top: 6px; color: var(--text-muted); }
.sources a { text-decoration: underline; color: var(--text-secondary); }
.word-translation { font-size: 1.3rem; font-weight: 700; text-align: right; }

.report { display: flex; flex-direction: column; gap: 1.25rem; }
.report-card { padding: 28px; }
.report-card h3 { font-size: 1.25rem; margin-bottom: 1rem; }
.term-row { padding: 1rem 0; align-items: center; }
.term-original { font-size: 1.1rem; }
.term-translation { font-size: 1.3rem; }
.term-explanation { color: var(--text-secondary); }
.page-nav { display: flex; align-items: center; justify-content: space-between; background: var(--surface-muted); border-radius: var(--r-md); padding: 14px 22px; }
.nav-btn { display: inline-flex; align-items: center; gap: 6px; border: 0; background: transparent; color: var(--accent); font-weight: 700; cursor: pointer; }
.nav-btn:disabled { opacity: .35; cursor: default; }
.task-row { align-items: start; grid-template-columns: 28px 1fr 1fr; }
.task-index { color: var(--accent); font-size: 1.05rem; }
.task-main { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.task-original { font-weight: 700; font-size: 1.05rem; }
.task-translation { text-align: end; }
.help-btn { display: inline-flex; align-items: center; gap: 6px; border: 0; background: var(--accent-light); color: var(--accent); font-weight: 700; font-size: .75rem; letter-spacing: .05em; text-transform: uppercase; border-radius: 999px; padding: 5px 12px; cursor: pointer; }
.help-steps { grid-column: 2 / -1; }

.login-wrap { flex-direction: column; gap: 28px; }
.login-logo { height: 36px; }
.login-card { gap: 18px; }
.login-card img { display: none; }
.login-card h1 { text-align: center; font-size: 2rem; }
.login-card input { background: var(--surface-muted); height: 48px; border-radius: var(--r-md); }
.btn.block { width: 100%; height: 48px; }

/* teacher */
.filters { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)) auto; gap: 14px; align-items: end; }
.filter { gap: 6px; }
.filter-label { font-size: .7rem; letter-spacing: .06em; text-transform: uppercase; color: var(--text-muted); }
select { height: 46px; border-radius: var(--r-md); }
.toggle { flex-direction: row; align-items: center; gap: 10px; height: 46px; padding: 0 16px; border-radius: var(--r-md); background: var(--surface-muted); border: 1px solid var(--border); white-space: nowrap; }
.toggle input { width: auto; }
.table-card { overflow-x: auto; }
.table-card th { padding: 16px 20px; letter-spacing: .06em; }
.table-card td { padding: 18px 20px; }
tr.attention td { background: #fffaf1; }
.nowrap { white-space: nowrap; }
.chip-subject { display: inline-block; font-weight: 700; font-size: .8rem; padding: 4px 12px; border-radius: 999px; color: var(--color); background: color-mix(in srgb, var(--color) 14%, #fff); border: 1px solid color-mix(in srgb, var(--color) 28%, #fff); }
.assign { display: flex; align-items: center; gap: 8px; }
.assign select { height: 34px; font-size: .85rem; min-width: 150px; }
.icon-btn { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; border: 0; background: transparent; color: var(--text-muted); border-radius: 10px; cursor: pointer; }
.icon-btn:hover { background: var(--accent-light); color: var(--accent); }
.edit-grid { grid-template-columns: 1fr 1fr; }
.card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.card-head h3 { margin-bottom: .25rem; }
.link-btn { display: inline-flex; align-items: center; gap: 6px; border: 0; background: transparent; color: var(--accent); font-weight: 700; cursor: pointer; }
.edit-term { display: grid; grid-template-columns: 1fr 1fr 40px; gap: 14px; align-items: start; }
.edit-col { display: flex; flex-direction: column; gap: 8px; }
.edit-word { display: flex; align-items: center; gap: 8px; }
.edit-word .article { margin: 0; }
.inline { flex-direction: row; align-items: center; gap: 8px; font-weight: 500; }
.inline input { border-radius: 0; border: 0; border-bottom: 1px solid var(--border); padding: 2px 4px; }
.action-bar { position: sticky; bottom: 0; display: flex; align-items: center; justify-content: space-between; gap: 16px; margin: 0 -2rem -4rem; padding: 16px 2rem; background: #fff; border-top: 1px solid var(--border); }
.btn.secondary, .btn.danger { height: 44px; display: inline-flex; align-items: center; }
.btn.danger { border-color: var(--danger); }

/* admin */
.admin-grid { display: grid; grid-template-columns: 340px minmax(0, 1fr); gap: 24px; align-items: start; }
.school-item { display: flex; align-items: center; gap: 12px; width: 100%; text-align: left; padding: 14px 16px; border-radius: var(--r-md); border: 1px solid var(--border); background: #fff; cursor: pointer; }
.school-item.selected { border: 2px solid var(--accent); background: var(--accent-light); }
.school-initial { width: 38px; height: 38px; border-radius: 12px; background: var(--accent-light); color: var(--accent); display: inline-flex; align-items: center; justify-content: center; font-family: var(--font-display); font-weight: 800; }
.school-item.selected .school-initial { background: var(--accent); color: #fff; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 20px 24px; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.pad { padding: 24px; }
.create-form { display: flex; gap: 14px; align-items: flex-end; padding: 20px 24px; background: var(--surface-muted); border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.create-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; flex: 1; }
.class-badge { background: #fff; border: 1px solid var(--border); border-radius: 8px; padding: 3px 10px; font-weight: 700; font-size: .8rem; }
.level-badge { border-radius: 999px; padding: 3px 10px; font-weight: 700; font-size: .75rem; white-space: nowrap; }
.level-badge.green { background: #e6f6ec; color: #1f7a45; }
.level-badge.blue { background: #e8efff; color: #2f6fe0; }
.level-badge.orange { background: var(--amber-light); color: var(--amber); }
@media (max-width: 900px) { .admin-grid { grid-template-columns: 1fr; } .filters { grid-template-columns: 1fr 1fr; } .edit-term { grid-template-columns: 1fr; } }