/**
 * Seven Segment Display Widget CSS
 * Tách riêng để đảm bảo load độc lập và không xung đột
 * Version: 1.0.0
 */

/* === Container & Layout === */
.seven-segment-container {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    padding: 8px;
    box-sizing: border-box;
    overflow: hidden;
    background: var(--widget-bg, #18181b);

    /* CSS Variables */
    --digit-width: 40px;
    --digit-height: 80px;
    --segment-thickness: 8px;
    --segment-length: 28px;
    --segment-radius: 3px;
    --decimal-size: calc(var(--segment-thickness) * 1.2);

    /* Theme Colors */
    --led-on-color: #ef4444;
    --led-off-color: #3f3f46;
    --led-off-opacity: 0.15;
    --led-glow: 0 0 8px var(--led-on-color);
    --widget-bg: #18181b;
}

/* === Display Area === */
.seven-segment-display {
    display: flex;
    gap: calc(var(--digit-width) * 0.1);
    align-items: center;
    justify-content: center;
    max-height: 100%;
    max-width: 100%;
    flex-wrap: nowrap;
    flex-shrink: 1;
    overflow: hidden;
}

/* === Digit Container === */
.digit {
    width: var(--digit-width);
    height: var(--digit-height);
    position: relative;
    flex-shrink: 0;
}

/* === Segment Base Styling === */
.segment {
    background-color: var(--led-off-color, #e5e7eb);
    opacity: var(--led-off-opacity, 0.05);
    position: absolute;
    border-radius: var(--segment-radius);
    transition: background-color 200ms ease, opacity 200ms ease, box-shadow 200ms ease, filter 200ms ease;
}

.dark .segment {
    background-color: var(--led-off-color, #1f2937);
    opacity: var(--led-off-opacity, 0.1);
}

.segment.on {
    background-color: var(--led-on-color, #ef4444);
    box-shadow: var(--led-glow, 0 0 calc(var(--segment-thickness) * 1.5) var(--led-on-color, #ef4444));
    opacity: 1;
}

/* === Segment Positioning === */
/* Segment A - Top horizontal */
.segment.a {
    width: var(--segment-length);
    height: var(--segment-thickness);
    top: 0;
    left: 50%;
    transform: translateX(-50%);
}

/* Segment B - Top right vertical */
.segment.b {
    width: var(--segment-thickness);
    height: calc((var(--digit-height) - var(--segment-thickness)) / 2 - var(--segment-thickness) * 0.3);
    top: calc(var(--segment-thickness) * 0.7);
    right: 0;
}

/* Segment C - Bottom right vertical */
.segment.c {
    width: var(--segment-thickness);
    height: calc((var(--digit-height) - var(--segment-thickness)) / 2 - var(--segment-thickness) * 0.3);
    bottom: calc(var(--segment-thickness) * 0.7);
    right: 0;
}

/* Segment D - Bottom horizontal */
.segment.d {
    width: var(--segment-length);
    height: var(--segment-thickness);
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

/* Segment E - Bottom left vertical */
.segment.e {
    width: var(--segment-thickness);
    height: calc((var(--digit-height) - var(--segment-thickness)) / 2 - var(--segment-thickness) * 0.3);
    bottom: calc(var(--segment-thickness) * 0.7);
    left: 0;
}

/* Segment F - Top left vertical */
.segment.f {
    width: var(--segment-thickness);
    height: calc((var(--digit-height) - var(--segment-thickness)) / 2 - var(--segment-thickness) * 0.3);
    top: calc(var(--segment-thickness) * 0.7);
    left: 0;
}

/* Segment G - Middle horizontal */
.segment.g {
    width: var(--segment-length);
    height: var(--segment-thickness);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* === Decimal Point === */
.decimal-point {
    width: var(--decimal-size);
    height: var(--decimal-size);
    border-radius: 50%;
    align-self: flex-end;
    margin-bottom: calc(var(--segment-thickness) * 1.5);
    margin-left: 2px;
    margin-right: 2px;
    background-color: var(--led-off-color, #e5e7eb);
    opacity: var(--led-off-opacity, 0.1);
    transition: background-color 0.3s, box-shadow 0.3s, opacity 0.3s;
    flex-shrink: 0;
}

.decimal-point.on {
    background-color: var(--led-on-color, #ef4444);
    box-shadow: var(--led-glow, 0 0 calc(var(--segment-thickness) * 0.8) var(--led-on-color, #ef4444));
    opacity: 1;
}

/* === LED THEMES === */

/* Theme 1: Classic Red LED */
.seven-segment-container[data-theme="classic-red"] {
    --led-on-color: #ef4444;
    --led-off-color: #3f3f46;
    --led-off-opacity: 0.15;
    --led-glow: 0 0 8px #ef4444, 0 0 12px #ef4444;
    --widget-bg: #18181b;
}

/* Theme 2: Monochrome LCD */
.seven-segment-container[data-theme="mono-lcd"] {
    --led-on-color: #d1d5db;
    --led-off-color: #374151;
    --led-off-opacity: 0.1;
    --led-glow: none;
    --widget-bg: #1f2937;
}

/* Theme 3: Plasma Blue */
.seven-segment-container[data-theme="plasma-blue"] {
    --led-on-color: #38bdf8;
    --led-off-color: #1e3a8a;
    --led-off-opacity: 0.1;
    --led-glow: 0 0 8px #38bdf8, 0 0 16px #38bdf8;
    --widget-bg: #0c142b;
}

/* Theme 4: Custom Color */
.seven-segment-container[data-theme="custom"] {
    --led-off-opacity: 0.12;
    --led-glow: 0 0 8px var(--led-on-color), 0 0 12px var(--led-on-color);
    --widget-bg: #1a1a1a;
}

/* Theme 5: Green Matrix */
.seven-segment-container[data-theme="green-matrix"] {
    --led-on-color: #10b981;
    --led-off-color: #064e3b;
    --led-off-opacity: 0.12;
    --led-glow: 0 0 8px #10b981, 0 0 12px #10b981;
    --widget-bg: #022c22;
}

/* Theme 6: Orange Warning */
.seven-segment-container[data-theme="orange-warning"] {
    --led-on-color: #f59e0b;
    --led-off-color: #451a03;
    --led-off-opacity: 0.15;
    --led-glow: 0 0 8px #f59e0b, 0 0 12px #f59e0b;
    --widget-bg: #1c1917;
}

/* Enhanced visual effects for better LED appearance */
.seven-segment-container[data-theme="classic-red"] .segment.on,
.seven-segment-container[data-theme="plasma-blue"] .segment.on,
.seven-segment-container[data-theme="custom"] .segment.on,
.seven-segment-container[data-theme="green-matrix"] .segment.on,
.seven-segment-container[data-theme="orange-warning"] .segment.on {
    filter: brightness(1.1);
}

.seven-segment-container[data-theme="mono-lcd"] .segment.on {
    filter: none;
    box-shadow: none;
}

/* === Negative Sign === */
.seven-segment-container .negative-sign {
    width: var(--segment-length);
    height: var(--segment-thickness);
    background-color: var(--led-on-color);
    border-radius: var(--segment-radius);
    margin-right: calc(var(--digit-width) * 0.15);
    margin-bottom: calc(var(--digit-height) * 0.45);
    box-shadow: var(--led-glow);
    flex-shrink: 0;
}

/* === Brightness Control === */
.segment.brightness-100 { filter: brightness(1); }
.segment.brightness-90 { filter: brightness(0.9); }
.segment.brightness-80 { filter: brightness(0.8); }
.segment.brightness-70 { filter: brightness(0.7); }
.segment.brightness-60 { filter: brightness(0.6); }
.segment.brightness-50 { filter: brightness(0.5); }
.segment.brightness-off { filter: brightness(0.3); }

/* === Glow Control === */
.segment.no-glow {
    box-shadow: none !important;
}

.seven-segment-container.no-glow .segment.on {
    box-shadow: none !important;
}

/* === Transition Control === */
.segment.fast-transition {
    transition: background-color 100ms ease, opacity 100ms ease, box-shadow 100ms ease, filter 100ms ease;
}

.segment.slow-transition {
    transition: background-color 400ms ease, opacity 400ms ease, box-shadow 400ms ease, filter 400ms ease;
}

.segment.no-transition {
    transition: none;
}