/* ── Reset & base ───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0f1117;
  --bg2:       #181c27;
  --bg3:       #1e2333;
  --border:    #2a2f42;
  --text:      #e2e8f0;
  --muted:     #7c87a0;
  --primary:   #3b82f6;
  --primary-h: #2563eb;
  --accent:    #f59e0b;
  --success:   #10b981;
  --danger:    #ef4444;
  --radius:    10px;
  --shadow:    0 4px 24px rgba(0,0,0,.4);
  --font:      'Inter', system-ui, -apple-system, sans-serif;
}

[data-theme="light"] {
  --bg:        #f0f4f8;
  --bg2:       #ffffff;
  --bg3:       #e8edf5;
  --border:    #d1d9e6;
  --text:      #1a202c;
  --muted:     #5a6478;
  --shadow:    0 4px 24px rgba(0,0,0,.08);
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.6;
  transition: background .2s, color .2s;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-h); }

/* ── Layout ─────────────────────────────────────────────── */
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* ── Navbar ─────────────────────────────────────────────── */
.navbar {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(8px);
}
.navbar .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 56px; gap: 16px;
}
.logo {
  font-weight: 700; font-size: 1.1rem; color: var(--text) !important;
  display: flex; align-items: center; gap: 8px;
}
.logo svg { width: 22px; height: 22px; flex-shrink: 0; }
.nav-links { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.nav-links a {
  color: var(--muted); padding: 6px 12px; border-radius: 6px;
  font-size: .875rem; font-weight: 500; transition: all .15s;
}
.nav-links a:hover { color: var(--text); background: var(--bg3); }
.nav-links a.active { color: var(--primary); background: rgba(59,130,246,.12); }
.nav-user {
  color: var(--muted); font-size: .8rem; padding: 4px 10px;
  background: var(--bg3); border-radius: 6px;
}
.theme-btn {
  background: var(--bg3); border: 1px solid var(--border);
  color: var(--text); border-radius: 8px; padding: 6px 10px;
  cursor: pointer; font-size: .85rem; transition: all .15s;
}
.theme-btn:hover { background: var(--border); }

/* ── Main & footer ──────────────────────────────────────── */
main { flex: 1; padding: 28px 0 48px; }
.footer {
  text-align: center; color: var(--muted); font-size: .8rem;
  padding: 20px; border-top: 1px solid var(--border);
}

/* ── Messages ───────────────────────────────────────────── */
.messages { margin-bottom: 20px; display: flex; flex-direction: column; gap: 8px; }
.msg {
  padding: 12px 16px; border-radius: var(--radius);
  font-size: .875rem; font-weight: 500; border: 1px solid transparent;
}
.msg-success { background: rgba(16,185,129,.12); border-color: var(--success); color: var(--success); }
.msg-error   { background: rgba(239,68,68,.12);  border-color: var(--danger);  color: var(--danger);  }
.msg-warning { background: rgba(245,158,11,.12); border-color: var(--accent);  color: var(--accent);  }

/* ── Page header ────────────────────────────────────────── */
.page-header { margin-bottom: 28px; }
.page-header h1 { font-size: 1.6rem; font-weight: 700; color: var(--text); }
.page-header p  { color: var(--muted); margin-top: 4px; font-size: .9rem; }
.breadcrumb { color: var(--muted); font-size: .8rem; margin-bottom: 12px; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--primary); }

/* ── Cards ──────────────────────────────────────────────── */
.card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px; margin-bottom: 20px;
  box-shadow: var(--shadow);
}
.card h2 { font-size: 1rem; font-weight: 600; margin-bottom: 16px; color: var(--text); }

/* ── Search ─────────────────────────────────────────────── */
.search-box { margin-bottom: 14px; }
.search-box input {
  width: 100%; max-width: 380px; padding: 10px 14px;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); font-size: .875rem;
  outline: none; transition: border-color .15s;
}
.search-box input:focus { border-color: var(--primary); }
.search-box input::placeholder { color: var(--muted); }

/* ── Entity grid (groups/teachers) ─────────────────────── */
.entity-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 8px;
}
.entity-grid a {
  display: block; text-align: center; padding: 10px 8px;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 8px; font-size: .85rem; font-weight: 500;
  color: var(--text); transition: all .15s;
}
.entity-grid a:hover {
  border-color: var(--primary); background: rgba(59,130,246,.08);
  color: var(--primary); transform: translateY(-1px);
}

/* ── Date selector ──────────────────────────────────────── */
.date-form {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 20px; flex-wrap: wrap;
}
.date-form label { color: var(--muted); font-size: .85rem; font-weight: 500; }
.date-form select {
  background: var(--bg3); border: 1px solid var(--border);
  color: var(--text); padding: 8px 12px; border-radius: 8px;
  font-size: .875rem; cursor: pointer; outline: none;
  transition: border-color .15s;
}
.date-form select:focus { border-color: var(--primary); }

/* ── Schedule table ─────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th {
  background: var(--bg3); color: var(--muted); font-size: .75rem;
  font-weight: 600; text-transform: uppercase; letter-spacing: .05em;
  padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border);
}
td {
  padding: 12px 14px; border-bottom: 1px solid var(--border);
  vertical-align: middle; font-size: .875rem;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,.025); }

/* ── Badges ─────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 6px; font-size: .75rem; font-weight: 600; padding: 2px 8px;
}
.badge-pair {
  background: rgba(59,130,246,.15); color: var(--primary);
  width: 28px; height: 28px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: .85rem;
}
.badge-sub {
  background: rgba(245,158,11,.12); color: var(--accent);
  border-radius: 4px; padding: 1px 6px; font-size: .7rem;
  font-weight: 600; margin-left: 4px;
}
.badge-room {
  background: var(--bg3); color: var(--muted);
  padding: 2px 8px; border-radius: 4px; font-size: .8rem;
}
.badge-room.remote { color: var(--accent); background: rgba(245,158,11,.1); }
.pair-cell { display: flex; align-items: center; gap: 6px; }
.pair-time { color: var(--muted); font-size: .7rem; white-space: nowrap; }

/* ── Stats grid ─────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 12px;
}
.stat-card {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 8px; padding: 16px; text-align: center;
}
.stat-card .num { font-size: 1.8rem; font-weight: 700; color: var(--primary); }
.stat-card .lbl { color: var(--muted); font-size: .8rem; margin-top: 4px; }

/* ── Upload form ────────────────────────────────────────── */
.upload-zone {
  border: 2px dashed var(--border); border-radius: var(--radius);
  padding: 32px 24px; text-align: center; cursor: pointer;
  transition: border-color .15s;
}
.upload-zone:hover { border-color: var(--primary); }
.upload-zone input[type="file"] { display: none; }
.upload-zone label { cursor: pointer; }
.upload-zone p { color: var(--muted); font-size: .875rem; margin-top: 8px; }
.upload-zone .upload-icon { font-size: 2.5rem; margin-bottom: 8px; }

/* ── Buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 18px; border-radius: 8px; font-size: .875rem;
  font-weight: 600; border: none; cursor: pointer; transition: all .15s;
}
.btn-primary  { background: var(--primary); color: #fff; }
.btn-primary:hover  { background: var(--primary-h); }
.btn-danger   { background: rgba(239,68,68,.12); color: var(--danger); border: 1px solid rgba(239,68,68,.3); }
.btn-danger:hover   { background: var(--danger); color: #fff; }
.btn-ghost    { background: var(--bg3); color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover    { border-color: var(--primary); color: var(--primary); }
.btn-sm { padding: 5px 12px; font-size: .8rem; }

/* ── Login page ─────────────────────────────────────────── */
.login-wrap {
  min-height: calc(100vh - 120px); display: flex;
  align-items: center; justify-content: center;
}
.login-card { width: 100%; max-width: 380px; }
.login-card h1 { font-size: 1.4rem; margin-bottom: 4px; }
.login-card .sub { color: var(--muted); font-size: .875rem; margin-bottom: 24px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: .85rem; font-weight: 500; margin-bottom: 6px; color: var(--muted); }
.field input {
  width: 100%; padding: 10px 14px; background: var(--bg3);
  border: 1px solid var(--border); border-radius: 8px;
  color: var(--text); font-size: .875rem; outline: none; transition: border-color .15s;
}
.field input:focus { border-color: var(--primary); }

/* ── Empty state ────────────────────────────────────────── */
.empty {
  text-align: center; padding: 48px 20px; color: var(--muted);
}
.empty-icon { font-size: 3rem; margin-bottom: 12px; }
.empty p { font-size: .9rem; }

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 640px) {
  .page-header h1 { font-size: 1.3rem; }
  .entity-grid { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); }
  td, th { padding: 10px 10px; }
  .nav-links a { padding: 5px 8px; font-size: .8rem; }
}

/* ── Footer ── */
.footer {
  margin-top: 3rem;
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-muted, #888);
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  max-width: 1200px;
  margin: 0 auto;
}
.footer-links a {
  color: var(--text-muted, #888);
  text-decoration: underline;
}
.footer-links a:hover { color: var(--accent, #4f8ef7); }

/* ── Terms page ── */
.terms-page { max-width: 800px; margin: 2rem auto; }
.terms-page h1 { margin-bottom: 0.25rem; }
.terms-date { color: var(--text-muted, #888); font-size: 0.85rem; margin-bottom: 1.5rem; }
.terms-notice {
  background: rgba(255,200,0,0.1);
  border: 1px solid rgba(255,200,0,0.4);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin-bottom: 2rem;
  font-size: 0.95rem;
}
.terms-page section { margin-bottom: 1.5rem; }
.terms-page h2 { font-size: 1.1rem; margin-bottom: 0.5rem; color: var(--accent, #4f8ef7); }
.terms-page p { margin-bottom: 0.5rem; line-height: 1.6; font-size: 0.95rem; }

/* ── Feedback page ── */
.feedback-page { max-width: 640px; margin: 2rem auto; }
.feedback-sub  { color: var(--text-muted, #888); margin-bottom: 2rem; }

.feedback-form { display: flex; flex-direction: column; gap: 1.25rem; }

.form-group label { display: block; font-weight: 600; margin-bottom: 0.4rem; font-size: 0.95rem; }
.form-group .required { color: #e55; }
.form-group .optional  { color: var(--text-muted, #888); font-weight: 400; font-size: 0.85rem; }

.category-btns { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.cat-btn input  { display: none; }
.cat-btn span {
  display: inline-block;
  padding: 0.4rem 1rem;
  border: 1.5px solid var(--border, #333);
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.15s;
}
.cat-btn input:checked + span {
  border-color: var(--accent, #4f8ef7);
  background: rgba(79,142,247,0.12);
  color: var(--accent, #4f8ef7);
}
.cat-btn span:hover { border-color: var(--accent, #4f8ef7); }

.feedback-form textarea,
.feedback-form input[type="text"] {
  width: 100%;
  padding: 0.7rem 1rem;
  border: 1.5px solid var(--border, #333);
  border-radius: 8px;
  background: var(--bg-card, #1a1a2e);
  color: var(--text, #eee);
  font-size: 0.95rem;
  resize: vertical;
  box-sizing: border-box;
  transition: border-color 0.15s;
}
.feedback-form textarea:focus,
.feedback-form input[type="text"]:focus {
  outline: none;
  border-color: var(--accent, #4f8ef7);
}

.btn-submit {
  align-self: flex-start;
  padding: 0.65rem 2rem;
  background: var(--accent, #4f8ef7);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
}
.btn-submit:hover { opacity: 0.85; }

.feedback-footer {
  margin-top: 2rem;
  font-size: 0.9rem;
  color: var(--text-muted, #888);
}
.feedback-footer a { color: var(--accent, #4f8ef7); }

/* ── Конспекты и ДЗ ──────────────────────────────────────────── */

/* Toolbar */
.conspect-toolbar {
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 24px; flex-wrap: wrap;
}
.toolbar-hint { font-size: .82rem; color: var(--muted); }

/* Сетка предметов */
.subject-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}
.subject-card {
  display: flex; align-items: center; gap: 14px;
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 12px; padding: 18px 16px;
  text-decoration: none; color: var(--text);
  transition: border-color .2s, transform .15s;
}
.subject-card:hover { border-color: var(--primary); transform: translateY(-2px); color: var(--text); }
.subject-card__icon { font-size: 1.8rem; flex-shrink: 0; }
.subject-card__body { flex: 1; min-width: 0; }
.subject-card__name { font-weight: 600; font-size: .97rem; word-break: break-word; }
.subject-card__meta { font-size: .8rem; color: var(--muted); margin-top: 3px; }
.subject-card__arrow { font-size: 1.4rem; color: var(--muted); flex-shrink: 0; }

/* Список дат */
.dates-list { display: flex; flex-direction: column; gap: 8px; }
.date-row {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 10px; padding: 14px 18px;
  text-decoration: none; color: var(--text);
  transition: border-color .2s;
}
.date-row:hover { border-color: var(--primary); color: var(--text); }
.date-row__left  { display: flex; align-items: center; gap: 10px; }
.date-row__icon  { font-size: 1.1rem; }
.date-row__date  { font-weight: 700; font-size: .97rem; }
.date-row__dow   { font-size: .8rem; color: var(--muted); }
.date-row__right { display: flex; align-items: center; gap: 10px; }
.date-row__count { font-size: .82rem; color: var(--muted); background: var(--bg3); padding: 2px 10px; border-radius: 20px; }
.date-row__arrow { color: var(--muted); font-size: 1.2rem; }

/* Карточки файлов */
.files-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.file-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 12px; padding: 18px;
  display: flex; flex-direction: column; gap: 12px;
  transition: border-color .2s, box-shadow .2s;
}
.file-card:hover { border-color: var(--primary); box-shadow: 0 4px 16px rgba(59,130,246,.1); }

.file-card__header { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.file-type-badge {
  padding: 4px 12px; border-radius: 20px; font-size: .78rem; font-weight: 600;
}
.type-conspect { background: rgba(99,102,241,.15); color: #818cf8; }
.type-hw       { background: rgba(16,185,129,.15);  color: #34d399; }
.type-other    { background: rgba(156,163,175,.15); color: #9ca3af; }
.file-group-badge {
  padding: 3px 10px; border-radius: 20px; font-size: .75rem; font-weight: 500;
  background: rgba(245,158,11,.12); color: var(--accent);
}

.file-card__body { flex: 1; }
.file-card__author { display: flex; align-items: center; gap: 7px; font-weight: 600; font-size: .97rem; }
.author-icon { font-size: .85rem; }
.file-card__desc { font-size: .85rem; color: var(--muted); margin-top: 6px; }

.file-card__footer { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.file-card__info  { display: flex; align-items: center; gap: 8px; }
.file-card__actions { display: flex; align-items: center; gap: 8px; }
.file-ext {
  padding: 2px 8px; border-radius: 6px; font-size: .72rem; font-weight: 700;
  background: var(--border);
}
.ext-pdf  { background: rgba(239,68,68,.15);  color: #f87171; }
.ext-jpg,.ext-jpeg,.ext-png,.ext-gif,.ext-webp
          { background: rgba(245,158,11,.15); color: #fbbf24; }
.ext-docx,.ext-doc
          { background: rgba(59,130,246,.15); color: #60a5fa; }
.file-date { font-size: .78rem; color: var(--muted); }

.btn-download {
  background: var(--accent); color: #000 !important;
  padding: 6px 14px; border-radius: 8px;
  font-size: .82rem; font-weight: 600;
  text-decoration: none; transition: opacity .2s; white-space: nowrap;
}
.btn-download:hover { opacity: .85; }

/* Кнопка удалить */
.btn-delete {
  background: transparent; color: var(--muted);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 6px 10px; font-size: .85rem; cursor: pointer;
  text-decoration: none; transition: all .15s;
}
.btn-delete:hover { background: rgba(239,68,68,.12); color: var(--danger); border-color: var(--danger); }

/* Форма загрузки */
.upload-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 14px; padding: 32px;
  max-width: 680px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.upload-card .form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.upload-card label { font-size: .875rem; font-weight: 600; }
.optional { font-weight: 400; font-size: .8rem; color: var(--muted); }
.upload-card input[type=text],
.upload-card input[type=date],
.upload-card select {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 8px; padding: 10px 14px;
  color: var(--text); font-size: .93rem; outline: none;
  transition: border-color .2s;
}
.upload-card input:focus,
.upload-card select:focus { border-color: var(--primary); }

/* Drag & drop зона */
.file-drop {
  display: flex; align-items: center; justify-content: center;
  background: var(--bg3); border: 2px dashed var(--border);
  border-radius: 12px; padding: 28px 20px; cursor: pointer;
  transition: border-color .2s, background .2s; text-align: center;
}
.file-drop:hover, .file-drop.drag-over {
  border-color: var(--primary); background: rgba(59,130,246,.05);
}
.file-drop.has-file { border-color: var(--success); background: rgba(16,185,129,.05); }
.file-drop__icon { font-size: 2rem; margin-bottom: 8px; }
.file-drop__text { font-size: .92rem; font-weight: 500; }
.file-drop__hint { font-size: .78rem; color: var(--muted); margin-top: 4px; }

.btn-upload { width: 100%; padding: 12px; font-size: 1rem; margin-top: 8px; }

/* Пустое состояние */
.empty-state { text-align: center; padding: 60px 20px; color: var(--muted); }
.empty-icon  { font-size: 3rem; margin-bottom: 12px; }
.empty-text  { font-size: 1rem; }

/* Breadcrumb */
.breadcrumb { display: flex; align-items: center; gap: 6px; margin-bottom: 16px; flex-wrap: wrap; font-size: .875rem; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--text); }
.bc-sep { color: var(--muted); }

/* ── Auth pages ─────────────────────────────────────────── */
/* ── Auth pages ─────────────────────────────────────────── */
.auth-page {
  display: flex;
  justify-content: center;
  padding: 40px 16px;
}

.auth-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 36px;
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow);
}

.auth-header {
  text-align: center;
  margin-bottom: 28px;
}

.auth-icon {
  font-size: 2.4rem;
  margin-bottom: 10px;
}

.auth-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.auth-subtitle {
  color: var(--muted);
  font-size: .875rem;
  line-height: 1.5;
}

.auth-form { display: flex; flex-direction: column; gap: 18px; }

.form-group { display: flex; flex-direction: column; gap: 6px; }

.form-group label {
  font-size: .875rem;
  font-weight: 600;
  color: var(--text);
}

.form-group input {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--text);
  font-size: .95rem;
  transition: border-color .2s;
  outline: none;
}

.form-group input:focus {
  border-color: var(--primary);
}

.form-hint {
  font-size: .78rem;
  color: var(--muted);
}

.btn-full { width: 100%; text-align: center; }

.auth-footer {
  margin-top: 22px;
  text-align: center;
  font-size: .875rem;
  color: var(--muted);
}

.auth-footer a { font-weight: 600; }

/* Кнопка регистрации в навбаре */
.btn-nav-register {
  background: var(--primary);
  color: #fff !important;
  border-radius: 6px;
  padding: 4px 12px;
  font-size: .83rem;
  font-weight: 600;
  transition: background .2s;
}
.btn-nav-register:hover { background: var(--primary-h); }

.nav-user {
  font-size: .85rem;
  color: var(--muted);
  padding: 0 4px;
}

/* Кнопка удалить (маленькая, красная) */
.btn-danger-sm {
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: .8rem;
  cursor: pointer;
  transition: background .2s, color .2s;
}
.btn-danger-sm:hover {
  background: var(--danger);
  color: #fff;
}

/* Кнопка Опасность (большая) */
.btn-danger {
  background: var(--danger);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 10px 20px;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity .2s;
}
.btn-danger:hover { opacity: .85; }

.btn-secondary {
  background: var(--bg3);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 20px;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: border-color .2s;
}
.btn-secondary:hover { border-color: var(--primary); }

/* Блок инфо при удалении */
.delete-info {
  background: var(--bg3);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: .9rem;
}

.delete-warning {
  color: var(--accent);
  font-size: .9rem;
  margin-bottom: 20px;
  text-align: center;
}

/* ── Mobile responsive ──────────────────────────────────── */
@media (max-width: 600px) {
  .navbar .container { height: auto; padding: 10px 16px; flex-wrap: wrap; gap: 8px; }
  .nav-links { gap: 2px; }
  .nav-links a { padding: 5px 8px; font-size: .8rem; }
  .btn-nav-register { padding: 4px 8px; font-size: .78rem; }

  .subject-grid { grid-template-columns: 1fr; }
  .files-grid   { grid-template-columns: 1fr; }
  .form-row     { grid-template-columns: 1fr; }

  .upload-card { padding: 20px 16px; }
  .auth-card   { padding: 24px 18px; }

  .date-row { flex-direction: column; align-items: flex-start; gap: 8px; }
  .date-row__right { width: 100%; justify-content: space-between; }

  .file-card__footer { flex-direction: column; align-items: flex-start; }
  .file-card__actions { width: 100%; justify-content: space-between; }
  .btn-download { flex: 1; text-align: center; }

  .conspect-toolbar { flex-direction: column; align-items: flex-start; }

  main { padding: 16px 0 40px; }
  .page-header h1 { font-size: 1.3rem; }
}