* {
    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;
}

/* Desktop */
@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;
}

#meta {
    font-size: 14px;
    opacity: 0.8;
    word-break: break-word;
}

/* ===== LATEST ===== */

#latest {
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 12px;
}

/* ===== BITS ===== */

#bits {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.bit {
    height: 52px;
    border: 1px solid #00ff88;
    border-radius: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 22px;
    font-weight: bold;
}

.bit.on {
    background: #00ff88;
    color: #000;
}

/* Tablet/Desktop */
@media (min-width: 700px) {
    #bits {
        grid-template-columns: repeat(8, 1fr);
    }
}

/* ===== HISTORY ===== */

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

/* Desktop */
@media (min-width: 900px) {
    #history {
        font-size: 12px;
        max-height: 520px;
    }
}

/* ===== PHONE ===== */

@media (max-width: 500px) {

    h1 {
        font-size: 18px;
    }

    #status {
        font-size: 22px;
    }

    #latest {
        font-size: 30px;
    }

    .bit {
        height: 44px;
        font-size: 18px;
    }

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

/* ===== 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);
}

.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;
}

/* mobile */

@media (max-width: 500px) {
    .progress {
        height: 30px;
        padding: 5px;
    }

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

.accordion-header {
    cursor: pointer;
    user-select: none;
}

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

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

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

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

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

/* ===== 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 #00ff88;
    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%; }

/* Активные — зелёная заливка */
.sig-bar.active-1,
.sig-bar.active-2,
.sig-bar.active-3,
.sig-bar.active-4 {
    background-color: #00ff88;
    border-color: #00ff88;
}

/* Неактивные — прозрачные, только контур */
.sig-bar.dim {
    background-color: transparent;
    border-color: #1a3a1a;
}

#last-byte {
    font-size: 18px;
    font-weight: bold;
    color: #00ff88;
}