/* ============================================================
   assets/dashboard.css — Flash Card Frenzy Teacher Dashboard
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg:       #0f1117;
    --surface:  #1a1d27;
    --surface2: #21253a;
    --border:   #2a2d3a;
    --accent:   #00FFCC;
    --accent2:  #FF4DFF;
    --text:     #e0e0e8;
    --muted:    #7a7d90;
    --green:    #00FFCC;
    --red:      #FF6B6B;
    --gold:     #FFD700;
}

body {
    font-family: 'Segoe UI', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 0.92rem;
    line-height: 1.5;
    min-height: 100vh;
}

/* ── NAVIGATION ── */
.dash-nav {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky; top: 0; z-index: 100;
}
.dash-nav-inner {
    max-width: 1200px; margin: 0 auto;
    padding: 12px 24px;
    display: flex; align-items: center; gap: 20px;
}
.nav-logo {
    font-size: 1.1rem; font-weight: 700;
    color: var(--accent); text-decoration: none; letter-spacing: 1px;
    flex-shrink: 0;
}
.nav-links { display: flex; gap: 4px; flex: 1; }
.nav-link {
    padding: 6px 14px; border-radius: 8px;
    color: var(--muted); text-decoration: none;
    font-size: 0.88rem; transition: all 0.14s;
}
.nav-link:hover, .nav-link.active {
    color: var(--text); background: rgba(255,255,255,0.06);
}
.nav-link.active { color: var(--accent); }
.nav-user { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }

/* ── MAIN ── */
.dash-main {
    max-width: 1200px; margin: 0 auto;
    padding: 28px 24px 60px;
    display: flex; flex-direction: column; gap: 24px;
}

/* ── BETA BANNER ── */
.beta-banner {
    background: rgba(255,215,0,0.06);
    border: 1px solid rgba(255,215,0,0.2);
    border-radius: 10px; padding: 10px 16px;
    font-size: 0.82rem; color: rgba(255,255,255,0.6);
    line-height: 1.5;
}
.beta-banner span {
    background: rgba(255,215,0,0.2);
    color: var(--gold); border-radius: 4px;
    padding: 1px 7px; font-size: 0.72rem;
    font-weight: 700; letter-spacing: 0.5px;
    margin-right: 6px;
}

/* ── BUTTONS ── */
.btn-primary {
    background: linear-gradient(135deg, var(--accent2), var(--accent));
    border: none; border-radius: 10px;
    color: #0a0a1a; font-size: 0.9rem; font-weight: 700;
    padding: 10px 22px; cursor: pointer;
    text-decoration: none; display: inline-block;
    transition: opacity 0.15s;
}
.btn-primary:hover { opacity: 0.88; }

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--border);
    border-radius: 8px; color: var(--text);
    padding: 8px 16px; cursor: pointer;
    text-decoration: none; display: inline-block;
    font-size: 0.88rem; transition: all 0.14s;
}
.btn-outline:hover { border-color: rgba(255,255,255,0.3); }
.btn-sm { padding: 5px 12px; font-size: 0.8rem; }

/* ── DASHBOARD HEADER ── */
.dash-header {
    display: flex; align-items: center;
    justify-content: space-between; gap: 16px;
}
.dash-header h1 { font-size: 1.5rem; }

/* ── CLASS GRID ── */
.class-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}
.class-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px; padding: 20px;
    transition: border-color 0.15s;
}
.class-card:hover { border-color: rgba(255,255,255,0.2); }
.class-card-hdr { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 14px; }
.class-name { font-size: 1.05rem; font-weight: 600; }
.class-meta { font-size: 0.78rem; color: var(--muted); margin-top: 3px; }
.class-stats { display: flex; gap: 8px; flex-wrap: wrap; }
.stat-pill {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    border-radius: 20px; padding: 4px 12px;
    font-size: 0.78rem; color: var(--muted);
}
.code-pill { color: var(--accent); border-color: rgba(0,255,204,0.2); }

/* ── EMPTY STATE ── */
.empty-state {
    text-align: center; padding: 60px 24px;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 16px;
}
.empty-state h2 { margin-bottom: 8px; }
.empty-state p { color: var(--muted); }

/* ── FORMS ── */
.field { margin-bottom: 16px; }
.field label {
    display: block; font-size: 0.82rem;
    color: var(--muted); margin-bottom: 5px;
}
.field input, .field select, .field textarea {
    width: 100%; padding: 10px 14px;
    background: var(--bg); border: 1.5px solid var(--border);
    border-radius: 8px; color: var(--text);
    font-size: 0.95rem; outline: none;
    transition: border-color 0.15s; font-family: inherit;
}
.field input:focus, .field select:focus, .field textarea:focus {
    border-color: var(--accent);
}

/* ── ALERTS ── */
.alert { padding: 10px 16px; border-radius: 8px; font-size: 0.88rem; margin-bottom: 12px; }
.alert-error { background: rgba(255,77,77,0.1); border: 1px solid rgba(255,77,77,0.3); color: var(--red); }
.alert-success { background: rgba(0,255,204,0.08); border: 1px solid rgba(0,255,204,0.3); color: var(--accent); }

/* ── TABLES ── */
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
thead th {
    text-align: left; padding: 9px 14px;
    color: var(--muted); font-size: 0.75rem;
    text-transform: uppercase; letter-spacing: 0.7px;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}
tbody tr { border-bottom: 1px solid rgba(255,255,255,0.04); }
tbody tr:hover { background: rgba(255,255,255,0.025); }
tbody td { padding: 9px 14px; }
.table-wrap { overflow-x: auto; border-radius: 10px; border: 1px solid var(--border); }

/* ── SECTION CARD ── */
.section-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px; padding: 22px;
}
.section-card h2 {
    font-size: 0.88rem; color: var(--muted);
    text-transform: uppercase; letter-spacing: 1px;
    margin-bottom: 16px; padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

/* ── STATUS BADGES ── */
.badge {
    display: inline-block; padding: 3px 10px;
    border-radius: 20px; font-size: 0.72rem;
    font-weight: 700; letter-spacing: 0.5px;
}
.badge-pending  { background: rgba(255,215,0,0.15);  color: var(--gold); }
.badge-approved { background: rgba(0,255,204,0.12);  color: var(--accent); }
.badge-declined { background: rgba(255,77,77,0.12);  color: var(--red); }
.badge-suspended{ background: rgba(255,154,0,0.12);  color: #FF9A00; }

/* ============================================================
   MOBILE HAMBURGER NAV + OVERFLOW FIX
   Place at the bottom of assets/dashboard.css
   ============================================================ */

html,
body {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
}

img,
canvas,
svg {
    max-width: 100%;
    height: auto;
}

.dash-nav,
.dash-nav-inner,
.dash-main,
.section-card,
.class-card,
.class-card-hdr,
.beta-banner,
.ann-banner,
.table-wrap,
.prog-shell,
.prog-layout,
.card,
.summary-tile,
.op-tile,
.metric-card,
.chart-card,
.segment-card,
.norm-card,
.roster,
.class-banner {
    min-width: 0;
    max-width: 100%;
}

.table-wrap,
.heatmap-wrap {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* Desktop nav keeps the original horizontal behavior */
.dash-menu-toggle,
.dash-menu-btn {
    display: none;
}

.dash-menu-panel {
    display: contents;
}

.nav-user-name {
    color: var(--muted);
    font-size: 0.82rem;
}

@media (max-width: 768px) {
    .dash-nav {
        width: 100%;
        max-width: 100vw;
        overflow-x: clip;
    }

    .dash-nav-inner {
        width: 100%;
        max-width: 100%;
        margin: 0;
        padding: 14px 16px;
        display: grid !important;
        grid-template-columns: minmax(0, 1fr) auto;
        gap: 12px;
        align-items: center;
        overflow: visible !important;
    }

    .nav-logo {
        min-width: 0;
        width: auto;
        font-size: 1.08rem;
        line-height: 1.2;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .dash-menu-toggle {
        position: absolute;
        opacity: 0;
        pointer-events: none;
    }

    .dash-menu-btn {
        display: inline-flex;
        width: 44px;
        height: 40px;
        border: 1px solid var(--border);
        border-radius: 10px;
        background: rgba(255,255,255,0.045);
        align-items: center;
        justify-content: center;
        flex-direction: column;
        gap: 5px;
        cursor: pointer;
        justify-self: end;
    }

    .dash-menu-btn span {
        display: block;
        width: 20px;
        height: 2px;
        border-radius: 99px;
        background: var(--text);
    }

    .dash-menu-panel {
        grid-column: 1 / -1;
        display: none;
        width: 100%;
        min-width: 0;
        padding-top: 4px;
        border-top: 1px solid rgba(255,255,255,0.06);
    }

    .dash-menu-toggle:checked ~ .dash-menu-panel {
        display: grid;
        gap: 12px;
    }

    .nav-links {
        width: 100% !important;
        min-width: 0;
        display: grid !important;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
        flex: none !important;
        overflow: visible !important;
        padding: 0;
    }

    .nav-link {
        width: 100%;
        min-width: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
        white-space: normal;
        line-height: 1.15;
        padding: 11px 8px;
        border: 1px solid rgba(255,255,255,0.06);
        background: rgba(255,255,255,0.035);
    }

    .nav-link.active {
        border-color: rgba(0,255,204,0.28);
        background: rgba(0,255,204,0.08);
    }

    .nav-user {
        width: 100%;
        min-width: 0;
        display: grid !important;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
        align-items: stretch;
        flex: none !important;
    }

    .nav-user-name {
        grid-column: 1 / -1;
        text-align: center;
        color: var(--muted);
        font-size: 0.82rem;
    }

    .nav-user .btn-outline {
        width: 100%;
        text-align: center;
        padding: 9px 10px;
    }

    .dash-main,
    .prog-shell {
        width: 100%;
        max-width: 100%;
        padding-left: 14px !important;
        padding-right: 14px !important;
        overflow-x: hidden;
    }

    .dash-header,
    .prog-top {
        flex-direction: column;
        align-items: flex-start;
    }

    .class-grid {
        grid-template-columns: 1fr;
    }

    .class-card,
    .section-card,
    .card {
        width: 100%;
    }

    .class-card-hdr {
        flex-wrap: wrap;
    }

    .class-stats,
    .filters {
        width: 100%;
        flex-wrap: wrap;
    }

    .fact-table,
    .games-table {
        min-width: 680px;
    }

    .heatmap {
        min-width: 610px;
    }
}

@media (max-width: 560px) {
    .dash-nav-inner {
        padding-left: 14px;
        padding-right: 14px;
    }

    .dash-main,
    .prog-shell {
        padding-left: 12px !important;
        padding-right: 12px !important;
    }

    .summary-grid,
    .op-grid,
    .norm-grid,
    .metric-grid,
    .growth-grid,
    .chart-grid,
    .segment-grid {
        grid-template-columns: 1fr !important;
    }

    .student-row,
    .student-chip {
        min-width: 0;
    }

    .student-stats {
        flex-wrap: wrap;
        justify-content: flex-end;
    }
}