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

/* ── Variables ───────────────────────────────────────────────────────────── */
:root {
    --bg:           #0d1117;
    --surface:      #161b22;
    --surface-2:    #21262d;
    --border:       #30363d;
    --text:         #e6edf3;
    --text-muted:   #8b949e;
    --line:         #f85c8d;
    --max:          #58a6ff;
    --accent:       var(--line);
    --danger:       #f85149;
    --success:      #3fb950;
    --warn:         #ffa657;
    --nav-h:        62px;
    --safe-b:       env(safe-area-inset-bottom, 0px);
    --safe-t:       env(safe-area-inset-top, 0px);
    --r:            12px;
    --r-sm:         8px;
}

body.twin-max { --accent: var(--max); }

/* ── Base ────────────────────────────────────────────────────────────────── */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100dvh;
    overflow-x: hidden;
    -webkit-tap-highlight-color: transparent;
    font-size: 16px;
}

/* ── App shell ───────────────────────────────────────────────────────────── */
#app {
    display: flex;
    flex-direction: column;
    height: 100dvh;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

/* ── Header ──────────────────────────────────────────────────────────────── */
#app-header {
    flex-shrink: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 10px 16px 10px;
    padding-top: calc(10px + var(--safe-t));
    z-index: 10;
}

.header-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.app-title {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.amp {
    color: var(--accent);
    transition: color 0.3s ease;
}

.header-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
}

.clock {
    text-align: right;
    line-height: 1.3;
}

.clock .c-date {
    display: block;
    font-size: 0.68rem;
    color: var(--text-muted);
    text-transform: capitalize;
}

.clock .c-time {
    display: block;
    font-size: 0.9rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

/* ── Twin selector ───────────────────────────────────────────────────────── */
.twin-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.twin-btn {
    padding: 8px 12px;
    border: 1.5px solid var(--border);
    border-radius: var(--r-sm);
    background: transparent;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    letter-spacing: 0.3px;
}

.twin-btn[data-twin="line"].active {
    border-color: var(--line);
    background: rgba(248,92,141,0.12);
    color: var(--line);
}

.twin-btn[data-twin="max"].active {
    border-color: var(--max);
    background: rgba(88,166,255,0.12);
    color: var(--max);
}

/* ── Main scroll area ────────────────────────────────────────────────────── */
#app-main {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 16px;
    padding-bottom: calc(var(--nav-h) + var(--safe-b) + 16px);
    scroll-behavior: smooth;
}

.tab-pane         { display: none; }
.tab-pane.active  { display: block; }

/* ── Summary grid ────────────────────────────────────────────────────────── */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-bottom: 10px;
}

.summary-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: 12px 6px;
    text-align: center;
}

.summary-value {
    display: block;
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--accent);
    transition: color 0.3s;
    font-variant-numeric: tabular-nums;
    line-height: 1.1;
}

.summary-label {
    display: block;
    font-size: 0.6rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 3px;
}

/* ── Weight row ──────────────────────────────────────────────────────────── */
.weight-row {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
    cursor: pointer;
    transition: border-color 0.2s;
}

.weight-row:hover, .weight-row:active {
    border-color: var(--accent);
}

.weight-info {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.weight-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent);
    font-variant-numeric: tabular-nums;
    transition: color 0.3s;
}

.weight-date {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.weight-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 2px;
}

.weight-label {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.weight-edit-icon {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ── Last fed indicator ──────────────────────────────────────────────────── */
.last-fed {
    font-size: 0.78rem;
    color: var(--text-muted);
    text-align: center;
    min-height: 18px;
    margin-bottom: 14px;
}

/* ── Action row ──────────────────────────────────────────────────────────── */
.action-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 20px;
}

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 13px 16px;
    border: none;
    border-radius: var(--r);
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.15s ease;
    -webkit-user-select: none;
    user-select: none;
    font-family: inherit;
}

.btn:active { transform: scale(0.96); }

.btn-primary {
    background: var(--accent);
    color: #fff;
    transition: background 0.3s, transform 0.15s, filter 0.15s;
}

.btn-primary:hover { filter: brightness(1.1); }

.btn-secondary {
    background: var(--surface-2);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-danger {
    background: transparent;
    color: var(--danger);
    border: 1px solid var(--danger);
    margin-top: 8px;
}

.btn-full { width: 100%; }

/* ── Section title ───────────────────────────────────────────────────────── */
.section-title {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 10px;
}

/* ── Feeding cards ───────────────────────────────────────────────────────── */
.feeding-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.feeding-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: 12px 14px;
    position: relative;
}

.card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
}

.card-time {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--accent);
    font-variant-numeric: tabular-nums;
    transition: color 0.3s;
}

.temp-badge {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--warn);
    background: rgba(255,166,87,0.1);
    border: 1px solid rgba(255,166,87,0.3);
    border-radius: 20px;
    padding: 2px 10px;
}

.card-badges {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 4px;
}

.badge {
    font-size: 0.75rem;
    padding: 2px 10px;
    border-radius: 20px;
    font-weight: 600;
}

.badge-stools { background: rgba(188,138,26,0.15); border: 1px solid rgba(188,138,26,0.3); color: #e6b100; }
.badge-urine  { background: rgba(88,166,255,0.12); border: 1px solid rgba(88,166,255,0.3); color: #79c0ff; }

.card-notes {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-style: italic;
    margin-top: 4px;
}

.btn-delete {
    position: absolute;
    top: 10px;
    right: 10px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    opacity: 0.3;
    transition: opacity 0.2s;
    padding: 4px 6px;
    line-height: 1;
}

.btn-delete:hover { opacity: 0.9; }

.btn-edit {
    position: absolute;
    top: 10px;
    right: 38px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    opacity: 0.3;
    transition: opacity 0.2s;
    padding: 4px 6px;
    line-height: 1;
    color: var(--warn);
}

.btn-edit:hover { opacity: 0.85; }

/* ── Empty state ─────────────────────────────────────────────────────────── */
.empty-state {
    text-align: center;
    color: var(--text-muted);
    padding: 36px 16px;
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ── History tab ─────────────────────────────────────────────────────────── */
.history-controls { margin-bottom: 14px; }

.date-input {
    width: 100%;
    padding: 11px 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r);
    color: var(--text);
    font-size: 0.95rem;
    font-family: inherit;
    color-scheme: dark;
    transition: border-color 0.2s;
}

.date-input:focus {
    outline: none;
    border-color: var(--accent);
}

.history-date-title {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    text-transform: capitalize;
    padding-left: 2px;
}

/* ── Stats tab ───────────────────────────────────────────────────────────── */
.stats-period {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.period-btn {
    flex: 1;
    padding: 9px 8px;
    border: 1.5px solid var(--border);
    border-radius: var(--r-sm);
    background: transparent;
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.period-btn.active {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(248,92,141,0.08);
}

body.twin-max .period-btn.active {
    background: rgba(88,166,255,0.08);
}

.chart-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: 14px;
    margin-bottom: 14px;
}

.chart-title {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.chart-wrap {
    position: relative;
    height: 160px;
}

/* ── Bottom nav ──────────────────────────────────────────────────────────── */
#bottom-nav {
    flex-shrink: 0;
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 600px;
    display: flex;
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding-bottom: var(--safe-b);
    z-index: 10;
}

.nav-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    padding: 10px 4px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-size: 0.6rem;
    font-weight: 600;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    transition: color 0.2s;
    font-family: inherit;
}

.nav-btn.active { color: var(--accent); transition: color 0.3s; }

.nav-btn svg {
    width: 20px;
    height: 20px;
}

/* ── Modals ──────────────────────────────────────────────────────────────── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.65);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    z-index: 50;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s;
}

.modal-overlay.open {
    opacity: 1;
    pointer-events: all;
}

.modal {
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-radius: var(--r) var(--r) 0 0;
    padding: 20px 20px calc(20px + var(--safe-b));
    width: 100%;
    max-width: 600px;
    max-height: 92dvh;
    overflow-y: auto;
    transform: translateY(100%);
    transition: transform 0.3s cubic-bezier(0.34, 1.4, 0.64, 1);
}

.modal-overlay.open .modal {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.modal-header h2 {
    font-size: 1.05rem;
    font-weight: 700;
}

.modal-twin {
    color: var(--accent);
    transition: color 0.3s;
}

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background: var(--surface-2);
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    font-family: inherit;
}

/* ── Forms ───────────────────────────────────────────────────────────────── */
.form-row-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.form-group input[type="date"],
.form-group input[type="time"],
.form-group input[type="number"],
.form-group input[type="text"],
.form-group input[type="password"],
.form-group textarea {
    width: 100%;
    padding: 11px 14px;
    background: var(--surface-2);
    border: 1.5px solid var(--border);
    border-radius: var(--r-sm);
    color: var(--text);
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color 0.2s;
    color-scheme: dark;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.form-group textarea { resize: none; }

/* ── Toggle buttons ──────────────────────────────────────────────────────── */
.toggle-group {
    margin-bottom: 16px;
}

.toggle-label {
    display: block;
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.toggle-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.toggle-btn {
    padding: 11px;
    border: 1.5px solid var(--border);
    border-radius: var(--r-sm);
    background: transparent;
    color: var(--text-muted);
    font-size: 0.92rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.18s;
    font-family: inherit;
}

.toggle-btn.active {
    border-color: var(--accent);
    background: rgba(248,92,141,0.12);
    color: var(--accent);
}

body.twin-max .toggle-btn.active {
    background: rgba(88,166,255,0.12);
}

/* ── Toast ───────────────────────────────────────────────────────────────── */
.toast {
    position: fixed;
    top: -60px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: 10px 22px;
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
    z-index: 200;
    transition: top 0.3s cubic-bezier(0.34, 1.4, 0.64, 1);
    pointer-events: none;
}

.toast.show       { top: calc(12px + var(--safe-t)); }
.toast.error      { border-color: var(--danger);  color: var(--danger);  }
.toast.success    { border-color: var(--success); color: var(--success); }

/* ── User pill ───────────────────────────────────────────────────────────── */
.user-pill {
    padding: 3px 10px;
    border: 1px solid var(--role-color, var(--border));
    border-radius: 20px;
    background: transparent;
    color: var(--role-color, var(--text-muted));
    font-size: 0.7rem;
    font-weight: 700;
    cursor: pointer;
    font-family: inherit;
    white-space: nowrap;
    letter-spacing: 0.3px;
    transition: background 0.2s;
}

.user-pill:hover {
    background: color-mix(in srgb, var(--role-color, var(--border)) 12%, transparent);
}

/* ── User modal content ──────────────────────────────────────────────────── */
.user-role-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.user-role-badge {
    font-size: 0.72rem;
    font-weight: 700;
    padding: 3px 12px;
    border-radius: 20px;
    border: 1px solid;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    white-space: nowrap;
}

.user-role-desc {
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* ── Read-only mode ──────────────────────────────────────────────────────── */
body.read-only .action-row  { display: none; }
body.read-only .btn-delete  { display: none; }
body.read-only .weight-row  { cursor: default; pointer-events: none; }
body.read-only .weight-edit-icon { display: none; }

/* ── Weight table ────────────────────────────────────────────────────────── */
.weight-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
    margin-top: 14px;
}

.weight-table th {
    padding: 5px 8px;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--border);
    text-align: right;
}

.weight-table td {
    padding: 7px 8px;
    border-bottom: 1px solid var(--border);
    text-align: right;
    vertical-align: top;
    line-height: 1.4;
}

.weight-table tr:last-child td { border-bottom: none; }

.th-line { color: var(--line); }
.th-max  { color: var(--max); }

.wt-date {
    text-align: left;
    color: var(--text-muted);
    white-space: nowrap;
    font-size: 0.78rem;
}

.wt-val  { font-weight: 700; }
.wt-empty { color: var(--text-muted); font-size: 0.8rem; }

.wt-pos  { font-size: 0.72rem; color: var(--success); display: block; }
.wt-neg  { font-size: 0.72rem; color: var(--danger);  display: block; }
.wt-meas { font-size: 0.72rem; color: var(--text-muted); display: block; }

.wt-edit-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.85rem;
    opacity: 0.35;
    color: var(--warn);
    padding: 0 4px 0 0;
    transition: opacity 0.2s;
    vertical-align: middle;
}
.wt-edit-btn:hover { opacity: 0.9; }

.label-opt {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 400;
    font-style: italic;
}

/* ── Desktop nav (hidden on mobile) ──────────────────────────────────────── */
#desktop-nav {
    display: none;
}

/* ── Desktop layout ≥ 768px ──────────────────────────────────────────────── */
@media (min-width: 768px) {

    /* App shell: full height, full width */
    #app {
        height: auto;
        min-height: 100dvh;
        max-width: none;
    }

    /* ── Header: single horizontal bar ──────────────────────────────────── */
    #app-header {
        display: flex;
        align-items: center;
        padding: 0 32px;
        height: 60px;
        gap: 0;
    }

    .header-top {
        flex-shrink: 0;
        margin-bottom: 0;
        margin-right: 0;
    }

    .header-top .app-title { font-size: 1.15rem; }

    .header-right {
        flex-direction: row;
        align-items: center;
        gap: 14px;
        margin-left: 16px;
    }

    .clock { text-align: left; }
    .c-date { display: none; }   /* date takes too much space in topbar */
    .c-time { font-size: 0.85rem; font-weight: 600; }

    /* ── Desktop nav ─────────────────────────────────────────────────────── */
    #desktop-nav {
        display: flex;
        flex: 1;
        gap: 2px;
        padding: 0 24px;
    }

    .dnav-btn {
        padding: 7px 16px;
        border: none;
        border-radius: var(--r-sm);
        background: transparent;
        color: var(--text-muted);
        font-size: 0.88rem;
        font-weight: 600;
        cursor: pointer;
        font-family: inherit;
        transition: color 0.2s, background 0.2s;
        white-space: nowrap;
    }

    .dnav-btn:hover { background: var(--surface-2); color: var(--text); }
    .dnav-btn.active { background: var(--surface-2); color: var(--accent); }

    /* ── Twin selector: compact in topbar ───────────────────────────────── */
    .twin-selector {
        gap: 6px;
        flex-shrink: 0;
    }

    .twin-btn { padding: 6px 14px; font-size: 0.85rem; }

    /* ── Hide mobile bottom nav ──────────────────────────────────────────── */
    #bottom-nav { display: none; }

    /* ── Main content ────────────────────────────────────────────────────── */
    #app-main {
        padding: 32px 40px;
        padding-bottom: 40px;
        max-width: 1280px;
        margin: 0 auto;
        width: 100%;
    }

    /* ── Today tab: sidebar gauche + liste droite ───────────────────────── */
    /* IMPORTANT: cibler .active pour ne pas annuler display:none des autres */
    #tab-today.active {
        display: grid;
        grid-template-columns: 300px 1fr;
        gap: 0 28px;
        align-items: start;
    }

    #tab-today > .summary-grid   { grid-column: 1; grid-row: 1;
                                    grid-template-columns: 1fr 1fr; }
    #tab-today > .weight-row     { grid-column: 1; grid-row: 2; margin-top: 10px; }
    #tab-today > .last-fed       { grid-column: 1; grid-row: 3; }
    #tab-today > .action-row     { grid-column: 1; grid-row: 4; }
    #tab-today > .section-title  { grid-column: 2; grid-row: 1; }
    #tab-today > #today-list     { grid-column: 2; grid-row: 2 / 6; }

    /* En lecture seule : la liste monte d'une rangée */
    body.read-only #tab-today > .section-title { grid-row: 1; }
    body.read-only #tab-today > #today-list    { grid-row: 2 / 5; }

    /* ── History tab ─────────────────────────────────────────────────────── */
    /* Pas de max-width : plein écran */
    #tab-history .history-controls { max-width: 400px; }

    /* ── Stats tab: grille 2×2 ───────────────────────────────────────────── */
    /* IMPORTANT: cibler .active */
    #tab-stats.active {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px;
        align-items: start;
    }

    #tab-stats > .stats-period   { grid-column: 1 / -1; margin-bottom: 0; }
    #tab-stats > .chart-card     { margin-bottom: 0; }

    .chart-wrap { height: 260px; }

    /* ── Modals: dialog centré ───────────────────────────────────────────── */
    .modal-overlay { align-items: center; }

    .modal {
        border-radius: var(--r);
        border: 1px solid var(--border);
        max-width: 480px;
        padding: 28px;
        padding-bottom: 28px;
        transform: scale(0.95);
        transition: transform 0.25s cubic-bezier(0.34, 1.4, 0.64, 1);
    }

    .modal-overlay.open .modal { transform: scale(1); }
}