/* =====================================================================
   SurfSchool CRM — system designu
   Paleta: głęboki ocean + piasek + koralowy akcent (sygnatura: linia fali)
   Typografia: Space Grotesk (nagłówki) / Inter (treść) / IBM Plex Mono (dane)
   ===================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@500;600&display=swap');

:root {
    /* Kolory */
    --color-ocean-deep:  #0B3D5C;
    --color-ocean:       #1672A8;
    --color-ocean-light: #4FA3D1;
    --color-teal:        #2BB3A3;
    --color-coral:       #FF6B4A;
    --color-sand:        #F6F1E7;
    --color-sand-dark:   #E8DECB;
    --color-ink:         #16242E;
    --color-slate:       #5C6B76;
    --color-white:       #FFFFFF;
    --color-danger:      #D64545;
    --color-warning:     #C97A1F;

    /* Typografia */
    --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
    --font-body: 'Inter', 'Segoe UI', sans-serif;
    --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

    /* Layout */
    --sidebar-width: 264px;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow-card: 0 1px 2px rgba(11, 61, 92, 0.06), 0 4px 16px rgba(11, 61, 92, 0.06);
    --shadow-pop: 0 8px 30px rgba(11, 61, 92, 0.16);
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    font-family: var(--font-body);
    color: var(--color-ink);
    background: var(--color-sand);
    -webkit-font-smoothing: antialiased;
}

a { color: var(--color-ocean); text-decoration: none; }
a:hover { color: var(--color-ocean-deep); }

h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 600;
    margin: 0 0 0.4em;
    color: var(--color-ocean-deep);
    letter-spacing: -0.01em;
}

p { line-height: 1.55; }

:focus-visible {
    outline: 2px solid var(--color-coral);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

/* ---------------------------------------------------------------------
   Sygnatura: linia fali — używana jako delikatny rozdzielacz
   --------------------------------------------------------------------- */
.wave-rule {
    display: block;
    width: 100%;
    height: 10px;
    margin: 4px 0 20px;
}
.wave-rule path { fill: none; stroke: var(--color-coral); stroke-width: 2.5; stroke-linecap: round; }

/* =====================================================================
   EKRAN LOGOWANIA
   ===================================================================== */
.auth-screen {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1.1fr 1fr;
}
.auth-hero {
    position: relative;
    background: linear-gradient(165deg, var(--color-ocean-deep), #0A2D44 70%);
    color: var(--color-white);
    padding: 56px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
}
.auth-hero__waves {
    position: absolute;
    inset: auto 0 0 0;
    opacity: 0.5;
}
.auth-hero__top { position: relative; z-index: 1; }
.auth-brand { display: flex; align-items: center; gap: 12px; font-family: var(--font-display); font-size: 22px; font-weight: 700; }
.auth-brand .mark { width: 38px; height: 38px; }
.auth-hero__title {
    position: relative; z-index: 1;
    font-family: var(--font-display);
    font-size: clamp(28px, 4vw, 42px);
    line-height: 1.15;
    max-width: 460px;
    color: var(--color-white);
    margin-top: 40px;
}
.auth-hero__sub { color: #BFD9E8; max-width: 420px; font-size: 15px; }
.auth-hero__features { position: relative; z-index: 1; list-style: none; padding: 0; margin: 32px 0 0; display: grid; gap: 12px; }
.auth-hero__features li { display: flex; align-items: center; gap: 10px; color: #DCEBF3; font-size: 14px; }
.auth-hero__features svg { flex-shrink: 0; color: var(--color-coral); }

.auth-panel {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px;
    background: var(--color-white);
}
.auth-card { width: 100%; max-width: 380px; }
.auth-card h1 { font-size: 26px; margin-bottom: 6px; }
.auth-card p.lead { color: var(--color-slate); margin-bottom: 28px; font-size: 14.5px; }

.field { margin-bottom: 18px; }
.field label { display: block; font-size: 13.5px; font-weight: 600; color: var(--color-ink); margin-bottom: 6px; }
.field input, .field select, .field textarea {
    width: 100%;
    padding: 11px 13px;
    border: 1.5px solid var(--color-sand-dark);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 14.5px;
    background: var(--color-white);
    color: var(--color-ink);
    transition: border-color 0.15s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
    border-color: var(--color-ocean);
    outline: none;
}
.field-hint { font-size: 12.5px; color: var(--color-slate); margin-top: 5px; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: none;
    border-radius: var(--radius-sm);
    padding: 11px 20px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 14.5px;
    cursor: pointer;
    transition: transform 0.08s ease, background 0.15s ease, box-shadow 0.15s ease;
    text-decoration: none;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--color-ocean); color: var(--color-white); }
.btn-primary:hover { background: var(--color-ocean-deep); }
.btn-coral { background: var(--color-coral); color: var(--color-white); }
.btn-coral:hover { background: #E85A3C; }
.btn-ghost { background: transparent; color: var(--color-ocean-deep); border: 1.5px solid var(--color-sand-dark); }
.btn-ghost:hover { border-color: var(--color-ocean); }
.btn-block { width: 100%; }
.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.alert {
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    margin-bottom: 16px;
    border: 1px solid transparent;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}
.alert-error   { background: #FBEAE7; color: #8C2E1F; border-color: #F2C6BC; }
.alert-success { background: #E8F6F2; color: #146B5C; border-color: #BFE6DB; }
.alert-info    { background: #EAF3FA; color: #15527A; border-color: #C9E1F0; }

/* =====================================================================
   APLIKACJA — SZKIELET (sidebar + topbar + treść)
   ===================================================================== */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    background: var(--color-ocean-deep);
    color: var(--color-white);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; bottom: 0; left: 0;
    z-index: 50;
    transition: transform 0.2s ease;
}
.sidebar__brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 22px 22px 18px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 18px;
}
.sidebar__brand .mark { width: 30px; height: 30px; flex-shrink: 0; }
.sidebar__nav { flex: 1; padding: 6px 12px; overflow-y: auto; }
.nav-section-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: #6F94AB;
    padding: 16px 12px 6px;
}
.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    color: #CFE3EE;
    font-size: 14.5px;
    font-weight: 500;
    margin-bottom: 2px;
    position: relative;
    transition: background 0.15s ease, color 0.15s ease;
}
.nav-item svg { flex-shrink: 0; opacity: 0.9; }
.nav-item:hover { background: rgba(255,255,255,0.06); color: var(--color-white); }
.nav-item.active { background: rgba(255,255,255,0.1); color: var(--color-white); }
.nav-item.active::before {
    content: '';
    position: absolute;
    left: -12px; top: 8px; bottom: 8px;
    width: 3px;
    background: var(--color-coral);
    border-radius: 2px;
}
.nav-item.locked { opacity: 0.45; cursor: not-allowed; }
.nav-item .badge-soon {
    margin-left: auto;
    font-size: 10px;
    background: rgba(255,255,255,0.12);
    padding: 2px 6px;
    border-radius: 999px;
    letter-spacing: 0.03em;
}

.sidebar__footer { padding: 16px; border-top: 1px solid rgba(255,255,255,0.1); }
.user-chip { display: flex; align-items: center; gap: 10px; }
.avatar {
    width: 36px; height: 36px;
    border-radius: 999px;
    background: var(--color-coral);
    color: var(--color-white);
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 13px;
    flex-shrink: 0;
}
.user-chip__name { font-size: 13.5px; font-weight: 600; color: var(--color-white); line-height: 1.2; }
.user-chip__role { font-size: 11.5px; color: #9CC1D6; }
.logout-link { margin-left: auto; color: #9CC1D6; display: flex; }
.logout-link:hover { color: var(--color-coral); }

.main {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 32px;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-sand-dark);
    position: sticky;
    top: 0;
    z-index: 30;
}
.topbar__eyebrow { font-size: 12px; color: var(--color-slate); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 2px; }
.topbar__title { font-family: var(--font-display); font-size: 21px; font-weight: 600; color: var(--color-ocean-deep); }
.sidebar-toggle { display: none; background: none; border: none; cursor: pointer; padding: 6px; }

.content { padding: 28px 32px 60px; }

/* Karty */
.card {
    background: var(--color-white);
    border: 1px solid var(--color-sand-dark);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
}
.card-pad { padding: 22px; }
.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 22px;
    border-bottom: 1px solid var(--color-sand-dark);
}
.card-header h3 { margin: 0; font-size: 16px; }

/* Statystyki dashboardu */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--color-white);
    border: 1px solid var(--color-sand-dark);
    border-radius: var(--radius);
    padding: 20px 22px;
    box-shadow: var(--shadow-card);
}
.stat-card__label { font-size: 13px; color: var(--color-slate); display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.stat-card__value { font-family: var(--font-display); font-size: 30px; font-weight: 700; color: var(--color-ocean-deep); }
.stat-card__value .unit { font-family: var(--font-mono); font-size: 16px; color: var(--color-slate); margin-left: 4px; }
.stat-card__icon { width: 30px; height: 30px; border-radius: 8px; display: flex; align-items: center; justify-content: center; }

.grid-2 { display: grid; grid-template-columns: 1.3fr 1fr; gap: 18px; }

/* Tabele */
table.table { width: 100%; border-collapse: collapse; font-size: 14px; }
table.table th {
    text-align: left;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-slate);
    padding: 10px 16px;
    border-bottom: 1.5px solid var(--color-sand-dark);
}
table.table td { padding: 13px 16px; border-bottom: 1px solid var(--color-sand); vertical-align: middle; }
table.table tr:last-child td { border-bottom: none; }
table.table tr:hover td { background: #FBF8F2; }

.mono { font-family: var(--font-mono); }

.pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
}
.pill::before { content: ''; width: 6px; height: 6px; border-radius: 999px; background: currentColor; }
.pill-planned, .pill-booked, .pill-available { background: #E8F2FA; color: var(--color-ocean); }
.pill-completed, .pill-paid, .pill-attended, .pill-active { background: #E8F6F2; color: var(--color-teal); }
.pill-cancelled, .pill-failed, .pill-no_show, .pill-inactive { background: #FBEAE7; color: var(--color-danger); }
.pill-unpaid, .pill-pending, .pill-maintenance, .pill-overdue { background: #FBF1E2; color: var(--color-warning); }
.pill-rented, .pill-partial { background: #F1ECF9; color: #6B4FA8; }

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--color-slate);
}
.empty-state svg { margin-bottom: 14px; color: var(--color-sand-dark); }
.empty-state h4 { color: var(--color-ink); margin-bottom: 6px; }
.empty-state p { font-size: 14px; max-width: 320px; margin: 0 auto; }

/* Placeholder "moduł w budowie" */
.module-soon {
    text-align: center;
    padding: 70px 24px;
    max-width: 560px;
    margin: 0 auto;
}
.module-soon .step-badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 12.5px;
    color: var(--color-ocean);
    background: #E8F2FA;
    padding: 5px 12px;
    border-radius: 999px;
    margin-bottom: 16px;
}
.module-soon h2 { font-size: 23px; }
.module-soon p { color: var(--color-slate); font-size: 15px; }
.module-soon ul { text-align: left; display: inline-block; margin-top: 18px; color: var(--color-ink); font-size: 14.5px; line-height: 1.8; }

.quick-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }

/* Formularze: siatka pól, checkboxy, kolor */
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 22px; }
.field-full { grid-column: 1 / -1; }
.checkbox-row { display: flex; align-items: center; gap: 9px; margin-bottom: 16px; }
.checkbox-row input[type="checkbox"] { width: auto; margin: 0; accent-color: var(--color-ocean); }
.checkbox-row label { margin: 0; font-size: 14px; font-weight: 500; color: var(--color-ink); cursor: pointer; }
.field input[type="color"] { padding: 4px; height: 42px; cursor: pointer; }
.field textarea { resize: vertical; min-height: 80px; font-family: var(--font-body); }
fieldset.form-section { border: none; padding: 0; margin: 0 0 26px; }
fieldset.form-section legend {
    font-family: var(--font-display); font-size: 14px; font-weight: 600;
    color: var(--color-ocean-deep); padding: 0 0 10px; width: 100%;
    border-bottom: 1.5px solid var(--color-sand-dark); margin-bottom: 16px;
}
.form-actions { display: flex; gap: 10px; padding-top: 8px; }

/* Toolbar: wyszukiwanie + filtry nad listami */
.toolbar { display: flex; gap: 12px; align-items: center; justify-content: space-between; margin-bottom: 18px; flex-wrap: wrap; }
.toolbar-filters { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; flex: 1; }
.search-box { position: relative; min-width: 230px; flex: 1; max-width: 360px; }
.search-box svg { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--color-slate); pointer-events: none; }
.search-box input { padding-left: 38px; }
.toolbar select { padding: 9px 12px; border: 1.5px solid var(--color-sand-dark); border-radius: var(--radius-sm); font-size: 13.5px; background: var(--color-white); color: var(--color-ink); }
.result-count { font-size: 13px; color: var(--color-slate); padding: 0 4px 14px; }

/* Akcje w tabelach */
.table-actions { display: flex; gap: 6px; }
.icon-btn {
    width: 32px; height: 32px; border-radius: 8px; display: inline-flex; align-items: center; justify-content: center;
    border: 1.5px solid var(--color-sand-dark); background: var(--color-white); color: var(--color-slate);
    cursor: pointer; text-decoration: none; transition: border-color 0.15s, color 0.15s;
}
.icon-btn:hover { border-color: var(--color-ocean); color: var(--color-ocean); }
.icon-btn.danger:hover { border-color: var(--color-danger); color: var(--color-danger); }
.icon-btn.success:hover { border-color: var(--color-teal); color: var(--color-teal); }

/* Profile kursanta / instruktora */
.profile-header { display: flex; align-items: center; gap: 18px; margin-bottom: 22px; flex-wrap: wrap; }
.avatar-lg {
    width: 58px; height: 58px; border-radius: 999px; background: var(--color-ocean); color: var(--color-white);
    display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-weight: 700; font-size: 21px; flex-shrink: 0;
}
.profile-header h2 { margin-bottom: 4px; }
.profile-meta { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; color: var(--color-slate); font-size: 13.5px; }
.info-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px 28px; }
.info-grid dt { font-size: 12px; text-transform: uppercase; letter-spacing: 0.03em; color: var(--color-slate); margin-bottom: 3px; }
.info-grid dd { margin: 0 0 2px; font-size: 14.5px; color: var(--color-ink); font-weight: 500; }
.color-dot { width: 13px; height: 13px; border-radius: 999px; display: inline-block; vertical-align: middle; margin-right: 6px; border: 1px solid rgba(0,0,0,0.08); }
.section-title-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }

/* Grafik zajęć: nawigacja, legenda */
.calendar-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 16px; flex-wrap: wrap; }
.calendar-nav { display: flex; align-items: center; gap: 10px; }
.calendar-nav .date-label { font-family: var(--font-display); font-weight: 600; font-size: 16px; color: var(--color-ocean-deep); min-width: 220px; text-align: center; }
.view-toggle { display: inline-flex; border: 1.5px solid var(--color-sand-dark); border-radius: var(--radius-sm); overflow: hidden; }
.view-toggle a { padding: 8px 16px; font-size: 13.5px; font-weight: 600; color: var(--color-slate); text-decoration: none; }
.view-toggle a.active { background: var(--color-ocean); color: var(--color-white); }
.calendar-legend { display: flex; gap: 16px; flex-wrap: wrap; padding: 4px 4px 16px; font-size: 12.5px; color: var(--color-slate); }
.calendar-legend .legend-item { display: flex; align-items: center; gap: 7px; }
.calendar-legend .legend-dot { width: 11px; height: 11px; border-radius: 4px; display: inline-block; flex-shrink: 0; }
.legend-dot.is-block-swatch { background: repeating-linear-gradient(45deg, #8C97A6, #8C97A6 4px, #7C8696 4px, #7C8696 8px); }

/* Widok dnia: siatka godzinowa, kolumny = instruktorzy */
:root { --hour-height: 54px; }
.day-grid { display: flex; border: 1px solid var(--color-sand-dark); border-radius: var(--radius); overflow: hidden; background: var(--color-white); box-shadow: var(--shadow-card); }
.day-grid__time-col { width: 52px; flex-shrink: 0; border-right: 1px solid var(--color-sand-dark); }
.day-grid__time-col .day-grid__header { background: var(--color-sand); }
.day-grid__time-col .hour-row { position: relative; }
.day-grid__time-col .hour-row span { position: absolute; top: -7px; right: 8px; font-size: 11px; color: var(--color-slate); font-family: var(--font-mono); background: var(--color-white); }
.day-grid__col { flex: 1; min-width: 168px; border-right: 1px solid var(--color-sand-dark); }
.day-grid__col:last-child { border-right: none; }
.day-grid__header {
    padding: 11px 8px; text-align: center; font-weight: 600; font-size: 13.5px;
    border-bottom: 1.5px solid var(--color-sand-dark); background: var(--color-sand); color: var(--color-ocean-deep);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.day-grid__body { position: relative; }
.hour-row { height: var(--hour-height); border-bottom: 1px dashed var(--color-sand-dark); box-sizing: border-box; }
.hour-row:last-child { border-bottom: none; }

.event-card {
    position: absolute; left: 4px; right: 4px; border-radius: 7px; padding: 5px 8px; overflow: hidden;
    font-size: 12px; color: var(--color-white); cursor: pointer; box-shadow: 0 1px 3px rgba(11,61,92,0.18);
    border-left: 3px solid rgba(0,0,0,0.22); text-decoration: none; display: block; line-height: 1.3;
    transition: box-shadow 0.12s ease, transform 0.08s ease;
}
.event-card:hover { box-shadow: 0 4px 10px rgba(11,61,92,0.28); transform: translateY(-1px); }
.event-card.is-block { background: repeating-linear-gradient(45deg, #8C97A6, #8C97A6 7px, #76808F 7px, #76808F 14px); }
.event-card.is-cancelled { opacity: 0.45; text-decoration: line-through; }
.event-card .ec-time { font-family: var(--font-mono); font-size: 10.5px; opacity: 0.92; }
.event-card .ec-title { font-weight: 700; margin-top: 1px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.event-card .ec-meta { font-size: 10.5px; opacity: 0.9; margin-top: 1px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* Widok tygodnia: 7 kolumn dni, lista wydarzeń w porządku chronologicznym */
.week-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 10px; }
.week-day-col { background: var(--color-white); border: 1px solid var(--color-sand-dark); border-radius: var(--radius); min-height: 140px; box-shadow: var(--shadow-card); }
.week-day-col__header { padding: 10px; text-align: center; border-bottom: 1px solid var(--color-sand-dark); }
.week-day-col__header.is-today { background: #EAF3FA; }
.week-day-col__header .wd-name { font-size: 11.5px; color: var(--color-slate); text-transform: uppercase; letter-spacing: 0.03em; }
.week-day-col__header .wd-date { font-family: var(--font-display); font-weight: 700; font-size: 16px; color: var(--color-ocean-deep); }
.week-day-col__body { padding: 8px; display: flex; flex-direction: column; gap: 6px; }
.week-event {
    border-radius: 7px; padding: 6px 9px; font-size: 12px; color: var(--color-white); cursor: pointer;
    text-decoration: none; display: block; border-left: 3px solid rgba(0,0,0,0.22);
}
.week-event.is-block { background: repeating-linear-gradient(45deg, #8C97A6, #8C97A6 6px, #76808F 6px, #76808F 12px); }
.week-event.is-cancelled { opacity: 0.45; text-decoration: line-through; }
.week-event .we-time { font-family: var(--font-mono); font-size: 10.5px; opacity: 0.92; }
.week-event .we-title { font-weight: 700; }
.week-day-empty { padding: 16px 10px; text-align: center; color: var(--color-sand-dark); font-size: 12px; }

/* Multi-select kursantów w formularzu (lista z wyszukiwaniem) */
.student-picker { border: 1.5px solid var(--color-sand-dark); border-radius: var(--radius-sm); overflow: hidden; }
.student-picker__search { padding: 10px; border-bottom: 1px solid var(--color-sand-dark); }
.student-picker__search input { margin: 0; }
.student-picker__list { max-height: 220px; overflow-y: auto; padding: 6px 4px; }
.student-picker__row { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 6px; font-size: 13.5px; }
.student-picker__row:hover { background: var(--color-sand); }
.student-picker__row input { width: auto; margin: 0; accent-color: var(--color-ocean); }
.instructor-picker { display: flex; flex-direction: column; gap: 8px; }
.instructor-picker label { display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 500; cursor: pointer; }
.instructor-picker input { width: auto; margin: 0; accent-color: var(--color-ocean); }
.kind-toggle { display: flex; gap: 10px; margin-bottom: 22px; }
.kind-toggle label {
    flex: 1; text-align: center; padding: 12px; border: 1.5px solid var(--color-sand-dark); border-radius: var(--radius-sm);
    cursor: pointer; font-weight: 600; font-size: 14px; color: var(--color-slate); transition: all 0.12s ease;
}
.kind-toggle input { display: none; }
.kind-toggle input:checked + span { color: inherit; }
.kind-toggle label.is-active { border-color: var(--color-ocean); background: #EAF3FA; color: var(--color-ocean-deep); }

/* Responsywność */
.calendar-scroll { overflow-x: auto; padding-bottom: 4px; }
.calendar-scroll .day-grid, .calendar-scroll .week-grid { min-width: 720px; }

@media (max-width: 980px) {
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .grid-2 { grid-template-columns: 1fr; }
    .form-grid, .info-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main { margin-left: 0; }
    .sidebar-toggle { display: inline-flex; align-items: center; }
    .stat-grid { grid-template-columns: 1fr; }
    .topbar { padding: 16px 18px; }
    .content { padding: 20px 18px 50px; }
    .auth-screen { grid-template-columns: 1fr; }
    .auth-hero { display: none; }
}