:root {
    --bg: var(--tg-theme-bg-color, #fff);
    --card: var(--tg-theme-secondary-bg-color, #f3f4f6);
    --text: var(--tg-theme-text-color, #14181f);
    --hint: var(--tg-theme-hint-color, #8a929c);
    --accent: var(--tg-theme-button-color, #2f8fed);
    --accent-text: var(--tg-theme-button-text-color, #fff);
    --green: #2bb673;
    --red: #e35545;
    --amber: #e0a32e;
    --line: color-mix(in srgb, var(--hint) 18%, transparent);
    --r: 16px;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
    line-height: 1.45;
    padding-bottom: calc(env(safe-area-inset-bottom) + 24px);
}

#app { max-width: 600px; margin: 0 auto; padding: 0 16px; }

.screen { animation: fade .2s ease; }
.hidden { display: none !important; }
@keyframes fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; } }

.muted { color: var(--hint); }
.small { font-size: 13px; }
.center { text-align: center; }

/* ---------- вход ---------- */
.login-wrap { padding: 56px 4px 0; text-align: center; }
.logo { font-size: 52px; }
.login-wrap h1 { font-size: 24px; font-weight: 700; margin: 8px 0 6px; }
.login-wrap .muted { margin: 0 auto 24px; max-width: 340px; }
.login-card { text-align: left; }
.login-card input {
    width: 100%;
    margin-bottom: 10px;
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--card);
    color: var(--text);
    font-size: 16px;
}
.login-card input:focus { outline: none; border-color: var(--accent); }

/* ---------- кнопки ---------- */
.btn {
    border: none;
    border-radius: 12px;
    padding: 13px 16px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity .15s, transform .05s, background .15s;
}
.btn:active { transform: scale(.98); }
.btn:disabled { opacity: .5; }
.btn.primary { background: var(--accent); color: var(--accent-text); width: 100%; margin-top: 6px; }
.btn.soft { background: color-mix(in srgb, var(--accent) 14%, transparent); color: var(--accent); width: 100%; }
.btn.ghost { background: transparent; color: var(--hint); }
.btn.success { background: var(--green); color: #fff; }
.btn.danger { background: transparent; color: var(--red); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--red) 45%, transparent); }
.btn.queue { background: color-mix(in srgb, var(--amber) 16%, transparent); color: var(--amber); }
.btn.tiny { padding: 8px 12px; font-size: 13px; flex: 0 0 auto; }

.icon-btn {
    border: none; background: var(--card); color: var(--text);
    width: 38px; height: 38px; border-radius: 50%; font-size: 17px; cursor: pointer;
}
.icon-btn:active { transform: rotate(90deg); transition: transform .3s; }

/* ---------- шапка ---------- */
.head {
    display: flex; align-items: center; justify-content: space-between;
    padding: 20px 2px 14px;
}
.h-title { font-size: 22px; font-weight: 700; }

/* ---------- статистика ---------- */
.stats { display: flex; gap: 10px; margin-bottom: 16px; }
.stat {
    flex: 1; background: var(--card); border-radius: var(--r);
    padding: 14px 10px; text-align: center;
}
.stat .v { font-size: 22px; font-weight: 700; line-height: 1; }
.stat .k { font-size: 11px; color: var(--hint); margin-top: 6px; }
.stat.warn .v { color: var(--red); }

/* ---------- сегменты ---------- */
.segmented {
    display: flex; gap: 4px; padding: 4px;
    background: var(--card); border-radius: 13px; margin-bottom: 16px;
}
.seg {
    flex: 1; border: none; background: transparent; color: var(--hint);
    padding: 10px; border-radius: 10px; font-size: 14px; font-weight: 600; cursor: pointer;
    transition: background .15s, color .15s;
}
.seg.active { background: var(--bg); color: var(--text); box-shadow: 0 1px 3px rgba(0,0,0,.08); }
.seg .count { opacity: .7; font-size: 12px; }

/* ---------- фильтры ---------- */
.filters { margin-bottom: 18px; }
.filters input[type=text] {
    width: 100%; padding: 12px 14px; border: 1px solid var(--line);
    border-radius: 12px; background: var(--bg); color: var(--text); font-size: 15px;
}
.filters input[type=text]:focus { outline: none; border-color: var(--accent); }
.filter-row { display: flex; gap: 8px; margin-top: 8px; }
.filter-row select {
    flex: 1; min-width: 0; padding: 11px 12px; border: 1px solid var(--line);
    border-radius: 12px; background: var(--bg); color: var(--text); font-size: 14px;
    appearance: none; -webkit-appearance: none;
}
.check {
    display: flex; align-items: center; gap: 10px;
    margin-top: 12px; font-size: 14px; color: var(--text); cursor: pointer;
}
.check.small { margin-top: 0; font-size: 13px; color: var(--hint); }
.check input { width: 19px; height: 19px; accent-color: var(--accent); flex: 0 0 auto; }

.criteria {
    margin-top: 14px; background: var(--card); border-radius: var(--r); padding: 4px 14px;
}
.criteria summary {
    list-style: none; cursor: pointer; padding: 12px 0; font-size: 14px; font-weight: 600;
}
.criteria summary::-webkit-details-marker { display: none; }
.criteria[open] summary { border-bottom: 1px solid var(--line); margin-bottom: 12px; }
.criteria .muted { margin: 0 0 12px; }
.criteria-opts { display: flex; gap: 18px; margin-bottom: 14px; flex-wrap: wrap; }
.criteria .btn { margin-bottom: 12px; }

/* ---------- очередь (Мои) ---------- */
.section-label {
    font-size: 12px; font-weight: 600; color: var(--hint);
    text-transform: uppercase; letter-spacing: .03em; margin: 6px 4px 10px;
}
.qentry {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    background: var(--card); border-radius: var(--r); padding: 14px 16px; margin-bottom: 10px;
}
.qentry .qd { font-size: 14px; }

/* ---------- дни и занятия ---------- */
.day-header {
    font-size: 13px; font-weight: 700; color: var(--hint);
    margin: 22px 4px 10px; text-transform: capitalize;
}
.lesson {
    background: var(--card); border-radius: var(--r); padding: 16px; margin-bottom: 10px;
    position: relative; overflow: hidden;
}
.lesson::before {
    content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
    background: transparent;
}
.lesson.signed::before { background: var(--green); }
.lesson.free::before { background: var(--accent); }
.lesson.conflict::before { background: var(--amber); }

.lesson .row { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.lesson .name { font-weight: 600; font-size: 15px; }
.lesson .time { font-size: 13px; color: var(--hint); white-space: nowrap; }
.lesson .meta { font-size: 13px; color: var(--hint); margin-top: 4px; }
.lesson .reasons { font-size: 12px; color: var(--amber); margin-top: 4px; }

.seats { font-size: 13px; font-weight: 600; margin-top: 8px; }
.seats.ok { color: var(--green); }
.seats.no { color: var(--red); }

.actions { display: flex; gap: 8px; margin-top: 12px; }
.actions .btn { flex: 1; }

.badge {
    font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: 999px;
    margin-left: 6px; vertical-align: middle; white-space: nowrap;
}
.badge.signed { background: color-mix(in srgb, var(--green) 16%, transparent); color: var(--green); }
.badge.queued { background: color-mix(in srgb, var(--amber) 16%, transparent); color: var(--amber); }
.badge.conflict { background: color-mix(in srgb, var(--amber) 16%, transparent); color: var(--amber); }

.empty { text-align: center; color: var(--hint); padding: 48px 20px; }

.error {
    margin-top: 12px; color: var(--red); font-size: 14px;
    background: color-mix(in srgb, var(--red) 12%, transparent);
    padding: 11px 13px; border-radius: 12px;
}

.spinner {
    width: 32px; height: 32px; margin: 80px auto;
    border: 3px solid var(--card); border-top-color: var(--accent);
    border-radius: 50%; animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.toast {
    position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%);
    background: #1c1f24; color: #fff; padding: 12px 18px; border-radius: 14px;
    font-size: 14px; max-width: 88%; text-align: center; z-index: 50;
    box-shadow: 0 6px 24px rgba(0,0,0,.25);
}