* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: monospace;
    background: #050805;
    color: #00ff88;
    padding: 12px;
}

h1 {
    text-align: center;
    font-size: 22px;
    margin: 0 0 15px;
}

/* ===== GRID ===== */
.grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

@media (min-width: 900px) {
    .grid {
        grid-template-columns: 1fr 1fr;
    }
    .wide {
        grid-column: span 2;
    }
}

/* ===== CARD ===== */
.card {
    border: 1px solid #00ff88;
    border-radius: 10px;
    padding: 14px;
    background: rgba(0,255,136,0.05);
    overflow: hidden;
}

.card h3 {
    margin: 0 0 10px;
    font-size: 18px;
}

/* ===== STATUS ===== */
#status {
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 8px;
}

/* СТАТУСЫ - ЦВЕТА */
.status-ok {
    color: #00ff88 !important;
}

.status-lost {
    color: #ffffff !important;
    animation: blink 1.5s infinite;
}

.status-error {
    color: #ff4444 !important;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.2; }
}

/* ===== META ===== */
#meta {
    font-size: 14px;
    opacity: 0.8;
    word-break: break-word;
}

/* ===== PROGRESS BARS ===== */
.progress-row {
    margin-bottom: 16px;
}

.progress-label {
    font-size: 16px;
    margin-bottom: 6px;
    color: #ffffff;
    opacity: 0.9;
}

.progress {
    width: 100%;
    height: 34px;
    padding: 6px;
    border: 3px solid #8a8a8a;
    background: #222;
    box-shadow:
        inset 0 0 6px rgba(255,255,255,0.15),
        0 0 4px rgba(0,0,0,0.8);
}

.progress-with-signal {
    display: flex;
    align-items: center;
    gap: 0;
}

.progress-90 {
    flex: 0 0 86%;
    margin-right: 10px;
}

/* ЗАЛИВКА ПРОГРЕСС-БАРА */
.fill {
    height: 100%;
    width: 0%;
    background: #e6852d;
    box-shadow:
        inset 0 0 4px rgba(255,255,255,0.2),
        0 0 6px rgba(230,133,45,0.5);
    transition: width 0.25s linear;
}

/* Заливка при потере связи */
.fill.no-connection {
    background: #555555 !important;
    box-shadow: none !important;
    width: 0% !important;
}

/* ===== SIGNAL ICON ===== */
.signal-icon {
    display: flex;
    align-items: flex-end;
    gap: 4px;
    width: 34px;
    height: 34px;
    flex-shrink: 0;
}

.sig-bar {
    flex: 1;
    border-radius: 2px;
    min-width: 5px;
    border: 1.5px solid #e6852d;
    background-color: transparent;
    transition: background-color 0.3s, border-color 0.3s;
}

.sig-bar-1 { height: 33%; }
.sig-bar-2 { height: 66%; }
.sig-bar-3 { height: 100%; }

/* Неактивные сигнальные бары */
.sig-bar.dim {
    background-color: transparent;
    border-color: #1a3a1a;
}

/* Активные сигнальные бары */
.sig-bar.active-1,
.sig-bar.active-2,
.sig-bar.active-3 {
    background-color: #e6852d;
    border-color: #c46b1f;
}

/* Нет связи - сигнальные бары */
.sig-bar.no-connection {
    background-color: #555555 !important;
    border-color: #555555 !important;
    opacity: 0.3 !important;
}

/* ===== LAST BYTE ===== */
#last-byte {
    font-size: 18px;
    font-weight: bold;
    color: #00ff88;
}

/* ===== CHART ===== */
#signalChart {
    width: 100%;
    background: #050805;
    border: 1px solid #e6852d;
    border-radius: 8px;
}

/* ===== HISTORY ===== */
#history {
    font-size: 13px;
    line-height: 1.35;
    max-height: 420px;
    overflow-y: auto;
    white-space: nowrap;
    padding-right: 4px;
    margin: 0;
}

/* ===== ACCORDION ===== */
.accordion-header {
    cursor: pointer;
    user-select: none;
    padding: 10px 0;
    margin: 0;
}

.accordion-header:hover {
    opacity: 0.7;
}

.accordion-body {
    max-height: 520px;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
}

.accordion-body.collapsed {
    max-height: 0;
    opacity: 0;
}

/* ===== MOBILE ===== */
@media (max-width: 500px) {
    h1 {
        font-size: 18px;
    }

    #status {
        font-size: 22px;
    }

    .progress {
        height: 30px;
        padding: 5px;
    }

    .progress-label {
        font-size: 15px;
    }

    #history {
        font-size: 16px;
        line-height: 1.5;
        max-height: 55vh;
    }
}