/* ============================================================================
 * ПИР-дашборд — базовые стили. Mobile-first.
 * Минимальная ширина: 320px. Touch-цели ≥44px.
 * ==========================================================================*/

:root {
    --bg:        #f5f7fa;
    --card-bg:   #ffffff;
    --text:      #1f2937;
    --muted:     #6b7280;
    --border:    #e5e7eb;
    --accent:    #0f6cbd;
    --accent-fg: #ffffff;
    --warn-bg:   #fff8e1;
    --warn-fg:   #7c5a00;
    --ok:        #16a34a;
    --err:       #dc2626;
    --radius:    10px;
    --gap:       12px;
    --tap:       44px;
    --font:      -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                 "Helvetica Neue", Arial, "Noto Sans", sans-serif,
                 "Apple Color Emoji", "Segoe UI Emoji";
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg:      #0b1220;
        --card-bg: #131a2b;
        --text:    #e6edf3;
        --muted:   #9aa4b2;
        --border:  #223047;
        --warn-bg: #3a2f00;
        --warn-fg: #ffd97a;
    }
}

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

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.45;
    -webkit-text-size-adjust: 100%;
    text-rendering: optimizeLegibility;
}

body.app,
body.install {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-height: 100dvh;
}

/* Header */
.app__header {
    padding: 12px 16px;
    padding-top: max(12px, env(safe-area-inset-top));
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.app__brand strong {
    display: block;
    font-size: 17px;
    letter-spacing: 0.2px;
}

.app__sub {
    display: block;
    color: var(--muted);
    font-size: 12px;
    margin-top: 2px;
}

/* Main */
.app__main {
    flex: 1;
    padding: 16px;
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
    display: flex;
    flex-direction: column;
    gap: var(--gap);
}

/* Card */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
}

.card h1 {
    margin: 0 0 8px;
    font-size: 20px;
    line-height: 1.2;
}

.card p {
    margin: 8px 0;
}

.card--warn {
    background: var(--warn-bg);
    color: var(--warn-fg);
    border-color: transparent;
}

/* Muted text */
.muted { color: var(--muted); font-size: 14px; }

/* Badge */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    background: var(--border);
}
.badge--admin { background: var(--accent); color: var(--accent-fg); }
.badge--ok    { background: var(--ok);     color: #fff; }
.badge--err   { background: var(--err);    color: #fff; }

/* Navigation list */
.nav-list {
    list-style: none;
    padding: 0;
    margin: 16px 0 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    min-height: var(--tap);
    padding: 10px 14px;
    border-radius: var(--radius);
    background: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    transition: background 120ms ease;
}

.nav-item:hover:not(.is-disabled),
.nav-item:focus-visible:not(.is-disabled) {
    background: color-mix(in oklab, var(--accent) 8%, var(--card-bg));
    outline: 2px solid var(--accent);
    outline-offset: -2px;
}

.nav-item.is-disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: var(--tap);
    min-width: var(--tap);
    padding: 10px 16px;
    border-radius: var(--radius);
    border: 1px solid transparent;
    background: var(--accent);
    color: var(--accent-fg);
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: filter 120ms ease;
}
.btn:hover, .btn:focus-visible { filter: brightness(1.06); }
.btn--ghost {
    background: transparent;
    color: var(--text);
    border-color: var(--border);
}

/* Footer */
.app__footer {
    padding: 10px 16px;
    padding-bottom: max(10px, env(safe-area-inset-bottom));
    color: var(--muted);
    font-size: 12px;
    text-align: center;
    border-top: 1px solid var(--border);
    background: var(--card-bg);
}

/* Install screen */
body.install {
    justify-content: center;
    align-items: center;
    padding: 20px;
}
.install__box {
    max-width: 480px;
    width: 100%;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
}
.install__box h1 { margin-top: 0; }

/* Wider screens */
@media (min-width: 720px) {
    .app__main { padding: 24px; max-width: 960px; margin: 0 auto; width: 100%; }
    .card { padding: 24px; }
    .card h1 { font-size: 24px; }
}