:root {
    --bg: #0a0c12;
    --panel: #12151f;
    --panel2: #1a1f2e;
    --accent: #00f5ff;
    --accent2: #ff2e94;
    --accent3: #22c55e;
    --text: #e0e7ff;
    --text-muted: #a0a8c0;
    --border: #2a3142;
    --success: #22c55e;
    --danger: #ff4444;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family:
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 15px 40px;
}

header {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin: 10px 0 6px;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 24px;
    text-align: center;
}

.container {
    width: 100%;
    max-width: 1300px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

@media (min-width: 1000px) {
    .container {
        grid-template-columns: 360px 1fr;
    }
}

.panel {
    background: var(--panel);
    border-radius: 20px;
    padding: 24px;
    border: 1px solid var(--border);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.4);
    transition: box-shadow 0.3s;
    animation: fadeIn 0.5s ease backwards;
}

.panel:hover {
    box-shadow: 0 12px 36px rgba(0, 245, 255, 0.07);
}

.sec {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent);
    opacity: 0.65;
    margin: 18px 0 10px;
}

.sec:first-child {
    margin-top: 0;
}

.divider {
    height: 1px;
    background: var(--border);
    opacity: 0.45;
    margin: 16px 0;
}

label {
    font-size: 13px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 7px;
    margin-bottom: 5px;
}

select,
input[type="range"],
textarea {
    background: var(--panel2);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 10px;
    font-size: 14px;
    transition:
        border-color 0.2s,
        box-shadow 0.2s;
    width: 100%;
}

select {
    padding: 9px 11px;
}

textarea {
    padding: 10px 12px;
    resize: vertical;
    min-height: 64px;
    font-family: "Courier New", monospace;
    font-size: 13px;
    line-height: 1.5;
}

select:focus,
textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 245, 255, 0.12);
}

input[type="checkbox"] {
    accent-color: var(--accent);
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.row:last-child {
    margin-bottom: 0;
}

.row select {
    flex: 1;
}

.slider-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.slider-row input[type="range"] {
    flex: 1;
}

.slider-val {
    font-family: monospace;
    font-size: 13px;
    min-width: 54px;
    text-align: right;
    color: var(--accent);
    font-weight: 600;
}

.color-dot {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    border: 2px solid var(--border);
    flex-shrink: 0;
    transition: background 0.25s;
}

.tc-box {
    background: var(--panel2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px 12px;
    font-family: "Courier New", monospace;
    font-size: 12px;
    color: var(--accent);
    word-break: break-all;
    line-height: 1.6;
    min-height: 38px;
}

.tc-hint {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 5px;
    line-height: 1.5;
}

.tc-error {
    font-size: 11px;
    color: var(--danger);
    margin-top: 4px;
    display: none;
}

.tc-error.show {
    display: block;
}

.palette-row {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    margin-top: 4px;
}

.swatch {
    width: 20px;
    height: 20px;
    border-radius: 5px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    cursor: default;
    transition: transform 0.15s;
}

.swatch:hover {
    transform: scale(1.3);
}

button {
    border: none;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition:
        transform 0.2s,
        opacity 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 12px 16px;
}

button:hover {
    transform: translateY(-2px);
}

button:active {
    transform: translateY(0);
}

button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none !important;
}

.btn-gen {
    background: linear-gradient(135deg, var(--accent), #00b8c2);
    color: #000;
}

.btn-rand {
    background: linear-gradient(135deg, var(--accent2), #d42078);
    color: #fff;
}

.btn-dl {
    background: var(--success);
    color: #fff;
    width: 100%;
    margin-top: 8px;
}

.btn-apply {
    background: var(--accent);
    color: #000;
    font-size: 13px;
    padding: 9px 14px;
    border-radius: 9px;
}

.btn-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 4px;
}

.canvas-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    background: var(--panel2);
    padding: 18px;
    border-radius: 20px;
    border: 1px solid var(--border);
}

.canvas-wrap {
    position: relative;
    width: 100%;
    max-width: 640px;
}

canvas {
    width: 100%;
    height: auto;
    aspect-ratio: 1/1;
    border-radius: 14px;
    box-shadow:
        0 16px 48px rgba(0, 0, 0, 0.65),
        0 0 0 1px rgba(255, 255, 255, 0.04) inset;
    background: #0a0c12;
    image-rendering: pixelated;
    display: block;
}

.loader-overlay {
    position: absolute;
    inset: 0;
    border-radius: 14px;
    background: rgba(10, 12, 18, 0.8);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s;
    z-index: 10;
}

.loader-overlay.on {
    opacity: 1;
    pointer-events: all;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(0, 245, 255, 0.12);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

.loader-text {
    font-size: 13px;
    color: var(--text-muted);
}

.hist-label {
    font-size: 11px;
    color: var(--text-muted);
    align-self: flex-start;
    letter-spacing: 0.3px;
}

.hist-strip {
    display: flex;
    gap: 7px;
    width: 100%;
    max-width: 640px;
    min-height: 52px;
    align-items: center;
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

.hist-strip::-webkit-scrollbar {
    height: 3px;
}

.hist-strip::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

.hist-thumb {
    width: 48px;
    height: 48px;
    border-radius: 9px;
    border: 2px solid var(--border);
    cursor: pointer;
    flex-shrink: 0;
    overflow: hidden;
    background: #000;
    transition:
        border-color 0.15s,
        transform 0.15s,
        box-shadow 0.15s;
}

.hist-thumb img {
    width: 100%;
    height: 100%;
    display: block;
}

.hist-thumb:hover {
    border-color: var(--accent);
    transform: scale(1.12);
    box-shadow: 0 4px 14px rgba(0, 245, 255, 0.2);
}

.hist-thumb.active {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(0, 245, 255, 0.28);
}

.hist-empty {
    font-size: 12px;
    color: var(--border);
    font-style: italic;
}

.clan-badge {
    font-size: 12px;
    color: var(--text-muted);
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 5px 10px;
    align-self: flex-start;
}

.clan-name {
    color: var(--accent2);
    font-weight: 600;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

footer {
    margin-top: 40px;
    padding: 20px 0;
    width: 100%;
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
    opacity: 0.7;
    letter-spacing: 0.5px;
}