/* FILE: internal/webserver/web/style.css */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Tokyo Night colors */
    --tokyo-bg: #1a1b26;
    --tokyo-bg-dark: #16161e;
    --tokyo-fg: #a9b1d6;
    --tokyo-cyan: #7dcfff;
    --tokyo-blue: #7aa2f7;
    --tokyo-purple: #bb9af7;
    --tokyo-green: #9ece6a;
    --tokyo-yellow: #e0af68;
    --tokyo-red: #f7768e;
    --tokyo-border: #3b4261;

    /* Board colors */
    --square-light: #f0d9b5;
    --square-dark: #b58863;
    --square-selected: #6a994e;
    --move-from: #5090d3;
    --move-to: #81b3f0;
}

/* Base Layout */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #11111b;
    min-height: 100vh;
    width: 100vw;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    overflow-y: auto;
}

.outer-container {
    width: 100%;
    min-height: 100vh;
    padding: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: visible;
}

.container {
    background: var(--tokyo-bg);
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    padding: 1.5rem;
    width: 100%;
    max-width: 1100px;
    min-height: 600px;
    max-height: calc(100vh - 16px);
    color: var(--tokyo-fg);
    display: flex;
    flex-direction: column;
    overflow: visible;
}

main {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 1.5rem;
    height: 100%;
    min-height: 0;
}

/* Game Area */
.game-area {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    min-width: 0;
    min-height: 0;
}

/* Board and Coordinates */
.board-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 0;
}

.board-wrapper {
    position: relative;
    width: 100%;
    max-width: min(100%, calc(100vh - 200px));
    aspect-ratio: 1;
    margin: 0 auto;
}

.coordinates {
    position: absolute;
    display: flex;
    color: var(--tokyo-border);
    font-size: 0.75rem;
    font-weight: 500;
    user-select: none;
}

.coordinates.top {
    top: -20px;
    left: 0;
    right: 0;
    justify-content: space-around;
    padding: 0 2px;
}

.coordinates.left {
    left: -20px;
    top: 0;
    bottom: 0;
    flex-direction: column;
    justify-content: space-around;
    padding: 2px 0;
}

#board {
    position: absolute;
    inset: 0;
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    grid-template-rows: repeat(8, 1fr);
    border: 3px solid var(--tokyo-border);
    border-radius: 4px;
}

.square {
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: clamp(24px, 5vw, 36px);
    cursor: pointer;
    user-select: none;
    position: relative;
}

.square.light { background-color: var(--square-light); }
.square.dark { background-color: var(--square-dark); }
.square.selected { background-color: var(--square-selected) !important; }
.square.last-move-from { background-color: var(--move-from) !important; }
.square.last-move-to { background-color: var(--move-to) !important; }
.square.white-piece { color: #ffffff; text-shadow: 1px 1px 2px rgba(0,0,0,0.5); }
.square.black-piece { color: #2c2c2c; text-shadow: 1px 1px 2px rgba(255,255,255,0.2); }

/* Move feedback animations */
@keyframes flashGreen {
    0%, 100% { background-color: inherit; }
    50% { background-color: rgba(154, 206, 106, 0.8); }
}

@keyframes flashRed {
    0%, 100% { background-color: inherit; }
    50% { background-color: rgba(247, 118, 142, 0.8); }
}

.square.flash-green {
    animation: flashGreen 0.4s ease-out;
}

.square.flash-red {
    animation: flashRed 0.4s ease-out;
}

/* Checkmate indicator */
.square.mated-king::after {
    content: '';
    position: absolute;
    inset: 4px;
    border: 3px solid var(--tokyo-red);
    border-radius: 2px;
    pointer-events: none;
    z-index: 1;
}

.square.mated-king.black-piece {
    color: #8b0000 !important;
}

.square.mated-king.white-piece {
    color: #dc143c !important;
}

/* FEN Display */
.fen-container {
    position: relative;
    height: 40px;
    flex-shrink: 0;
}

.fen-display {
    height: 100%;
    padding: 0.5rem 3rem 0.5rem 0.5rem;
    font-family: 'Courier New', monospace;
    font-size: 0.75rem;
    background: var(--tokyo-bg-dark);
    border-radius: 4px;
    border: 1px solid var(--tokyo-border);
    color: var(--tokyo-fg);
    white-space: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    display: flex;
    align-items: center;
    scrollbar-width: none;
}

.fen-display::-webkit-scrollbar {
    display: none;
}

.fen-display::-webkit-scrollbar-track {
    background: var(--tokyo-bg-dark);
}

.fen-display::-webkit-scrollbar-thumb {
    background: var(--tokyo-border);
    border-radius: 2px;
}

/* Copy Buttons */
.copy-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    padding: 4px;
    background: var(--tokyo-border);
    border: none;
    border-radius: 4px;
    color: var(--tokyo-fg);
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s, background 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.fen-container:hover .copy-btn,
.move-history-container:hover .copy-btn {
    opacity: 0.7;
}

.copy-btn:hover {
    opacity: 1 !important;
    background: var(--tokyo-blue);
}

.copy-btn.copied {
    background: var(--tokyo-green);
    opacity: 1;
}

.copy-btn.copied svg {
    display: none;
}

.copy-btn.copied::after {
    content: '✓';
    font-size: 14px;
}

/* Info Panel */
.info-panel {
    background: var(--tokyo-bg-dark);
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-height: 0;
}

/* Status Indicators */
.status-indicators {
    display: flex;
    justify-content: space-evenly;
    align-items: center;
    padding: 0.75rem;
    background: var(--tokyo-bg);
    border-radius: 6px;
    border: 1px solid var(--tokyo-border);
    flex-shrink: 0;
    height: 60px;
}

.indicator {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
}

.indicator .light {
    font-size: 1.75rem;
    transition: all 0.3s;
    line-height: 1;
}

.indicator .light[data-status="white-wins"]::before,
.indicator .light[data-status="black-wins"]::before {
    content: '';
    position: absolute;
    inset: -8px;
    border: 2px solid var(--tokyo-red);
    border-radius: 50%;
    animation: pulseRed 2s infinite;
    pointer-events: none;
}

/* Status colors */
.indicator .light[data-status="healthy"] { color: var(--tokyo-green); }
.indicator .light[data-status="disabled"] { color: var(--tokyo-yellow); }
.indicator .light[data-status="degraded"] { color: var(--tokyo-red); }
.indicator .light[data-status="unknown"] { color: var(--tokyo-border); }
.indicator .light[data-status="white"] { color: #ffffff; }
.indicator .light[data-status="black"] { color: #2c2c2c; }
.indicator .light[data-status="thinking"] {
    color: var(--tokyo-yellow);
    animation: pulse 1.5s infinite;
}
.indicator .light[data-status="network-error"] { color: var(--tokyo-red); }

/* Win indicator */
@keyframes pulseRed {
    0%, 100% {
        opacity: 0.3;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.1);
    }
}

.indicator .light[data-status="white-wins"],
.indicator .light[data-status="black-wins"] {
    animation: goldPulse 2s infinite;
}

.indicator .light[data-status="draw"],
.indicator .light[data-status="stalemate"] {
    color: var(--tokyo-yellow);
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.95); }
}

.indicator:hover::after {
    content: attr(data-tooltip) ": " attr(data-status);
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    background: #313244;
    color: var(--tokyo-fg);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    white-space: nowrap;
    z-index: 10;
    pointer-events: none;
}

/* Move History */
.move-history-container {
    flex: 1;
    min-height: 0;
    position: relative;
    background: var(--tokyo-bg);
    border-radius: 6px;
    border: 1px solid var(--tokyo-border);
}

.move-history-container .copy-btn {
    right: 8px;
    top: 8px;
    transform: none;
}

.move-history {
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0.75rem;
}

.move-history::-webkit-scrollbar {
    width: 6px;
}

.move-history::-webkit-scrollbar-track {
    background: transparent;
}

.move-history::-webkit-scrollbar-thumb {
    background: var(--tokyo-border);
    border-radius: 3px;
}

.move-grid {
    display: grid;
    grid-template-columns: 2.5rem 1fr 1fr;
    gap: 0.25rem 0.5rem;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    align-items: center;
}

.move-number {
    color: var(--tokyo-blue);
    text-align: right;
    font-weight: 600;
}

.move-white,
.move-black {
    padding: 0.25rem 0.5rem;
    border-radius: 3px;
    transition: background 0.2s;
}

.move-white:hover,
.move-black:hover {
    background: var(--tokyo-border);
}

.move-white { color: var(--tokyo-fg); }
.move-black { color: var(--tokyo-cyan); }

/* Controls */
.controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    flex-shrink: 0;
}

.btn {
    padding: 0.75rem;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--tokyo-blue);
    color: var(--tokyo-bg);
}

.btn-primary:hover {
    background: var(--tokyo-cyan);
    transform: translateY(-1px);
}

.btn-secondary {
    background: #313244;
    color: var(--tokyo-fg);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--tokyo-border);
    transform: translateY(-1px);
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(4px);
}

.modal-overlay.show {
    display: flex;
}

.modal {
    background: var(--tokyo-bg);
    border: 1px solid var(--tokyo-border);
    border-radius: 12px;
    padding: 2rem;
    width: 90%;
    max-width: 400px;
    color: var(--tokyo-fg);
}

.modal h2 {
    margin-bottom: 1.5rem;
    color: var(--tokyo-blue);
    text-align: center;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--tokyo-cyan);
}

.form-group .group-label {
    text-align: center;
}

.radio-group {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
    color: var(--tokyo-fg);
}

input[type="range"] {
    width: 100%;
    height: 4px;
    background: var(--tokyo-border);
    border-radius: 2px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 16px;
    height: 16px;
    background: var(--tokyo-blue);
    border-radius: 50%;
    cursor: pointer;
}

.modal-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

/* Mobile/Responsive */
@media (max-width: 900px) {
    body {
        min-height: 100vh;
        overflow-y: auto;
        overflow-x: hidden;
    }

    .outer-container {
        padding: 8px;
        min-height: 100vh;
        height: auto;
        align-items: flex-start;
        padding-top: 20px;
    }

    .container {
        border-radius: 0;
        height: auto;
        min-height: auto;
        max-height: none;
        padding: 0.5rem;
        margin-bottom: 20px;
    }

    main {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto;
        gap: 0.5rem;
        height: auto;
        min-height: auto;
    }

    .board-container {
        height: auto;
        padding: 20px 0;
    }

    .board-wrapper {
        max-width: calc(100vw - 56px);
        max-height: calc(100vw - 56px);
        margin: 0 auto;
    }

    .coordinates.top {
        top: -18px;
    }

    .coordinates.left {
        left: -18px;
    }

    .square {
        font-size: clamp(20px, 8vw, 32px);
    }

    .fen-container {
        display: none;
    }

    .info-panel {
        grid-template-columns: 1fr;
        gap: 0.5rem;
        padding: 0.5rem;
        height: auto;
    }

    .status-indicators {
        padding: 0.5rem;
        height: 50px;
    }

    .move-history-container {
        max-height: 30vh;
        min-height: 150px;
    }

    .controls {
        grid-template-columns: 1fr 1fr;
    }

    .btn {
        padding: 0.5rem;
        font-size: 0.85rem;
    }
}