@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@400;500;600&family=Space+Mono:wght@400;700&display=swap');

:root {
    --bg: #f5f2ed;
    --bg-dark: #ebe7e0;
    --surface: #faf8f5;
    --border: #d4cfc6;
    --border-dark: #c4beb3;
    --text-primary: #2c2c2c;
    --text-secondary: #6b6560;
    --text-muted: #9a948c;
    --accent-sage: #8b9a7d;
    --accent-terracotta: #c4917a;
    --accent-dusty-blue: #7d8fa3;
    --accent-warm: #d4a574;
}

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

body {
    font-family: 'Cormorant Garamond', 'Georgia', serif;
    background: var(--bg);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.025;
    pointer-events: none;
    z-index: 1000;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 80px 40px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 64px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border);
    position: relative;
}

.logo {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.logo-icon {
    display: flex;
    gap: 4px;
}

.logo-icon span {
    width: 12px;
    height: 12px;
    background: var(--accent-sage);
}

.logo-icon span:nth-child(2) { background: var(--accent-terracotta); }
.logo-icon span:nth-child(3) { background: var(--accent-dusty-blue); }
.logo-icon span:nth-child(4) { background: var(--accent-warm); }

.logo h1 {
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.btn-generate {
    font-family: 'Space Mono', monospace;
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 12px 24px;
    background: transparent;
    border: 1px solid var(--text-primary);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-generate:hover {
    background: var(--text-primary);
    color: var(--bg);
}

.btn-generate::after {
    content: '→';
    margin-left: 8px;
}

.header-actions {
    display: flex;
    gap: 12px;
    position: relative;
}

.btn-export {
    font-family: 'Space Mono', monospace;
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 12px 24px;
    background: transparent;
    border: 1px solid var(--text-primary);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-export:hover {
    background: var(--text-primary);
    color: var(--bg);
}

.export-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.export-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
}

.export-modal-content {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 32px;
    min-width: 280px;
    z-index: 1;
}

.export-modal-content h3 {
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--text-muted);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.export-modal-content button {
    display: block;
    width: 100%;
    padding: 14px 16px;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border);
    text-align: left;
    font-family: 'Space Mono', monospace;
    font-size: 0.8rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.export-modal-content button:last-of-type {
    border-bottom: none;
}

.export-modal-content button:hover {
    background: var(--bg-dark);
    color: var(--text-primary);
}

.export-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 28px;
    height: 28px;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.export-modal-close:hover {
    background: var(--bg-dark);
    color: var(--text-primary);
}

.matrix-container {
    background: var(--surface);
    border: 1px solid var(--border);
    margin-bottom: 64px;
    display: grid;
    place-items: center;
    position: relative;
    min-height: 480px;
    max-height: 70vh;
}

.matrix-container::before {
    content: '';
    position: absolute;
    top: 16px;
    left: 16px;
    width: 40px;
    height: 40px;
    border-left: 1px solid var(--border-dark);
    border-top: 1px solid var(--border-dark);
}

.matrix-container::after {
    content: '';
    position: absolute;
    bottom: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    border-right: 1px solid var(--border-dark);
    border-bottom: 1px solid var(--border-dark);
}

.matrix {
    display: grid;
    gap: 0;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    max-width: min(400px, calc(100vw - 80px));
    max-height: min(400px, calc(100vh - 300px));
    width: 100%;
    aspect-ratio: 1;
}

.matrix-cell {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 0 !important;
    transition: all 0.4s ease;
    position: relative;
    opacity: 0;
    transform: scale(0.8);
}

.matrix-cell.visible {
    opacity: 1;
    transform: scale(1);
}

.matrix-cell:hover {
    transform: scale(1.15);
    z-index: 10;
}

.controls {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.control-section {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.section-title {
    font-family: 'Space Mono', monospace;
    font-size: 0.65rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: var(--text-muted);
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.slider-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.slider-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}

.slider-label {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
}

.size-input {
    font-family: 'Space Mono', monospace;
    font-size: 0.85rem;
    color: var(--accent-sage);
    font-weight: 700;
    width: 70px;
    padding: 4px 8px;
    background: var(--bg);
    border: 1px solid var(--border);
    text-align: right;
    transition: all 0.2s ease;
}

.size-input:focus {
    outline: none;
    border-color: var(--accent-sage);
}

.size-input::-webkit-outer-spin-button,
.size-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.size-input {
    -moz-appearance: textfield;
}

.slider-track {
    position: relative;
    height: 2px;
    background: var(--border);
    cursor: pointer;
}

.slider-fill {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: var(--text-primary);
    pointer-events: none;
}

.slider-thumb {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 12px;
    height: 12px;
    background: var(--text-primary);
    border-radius: 50%;
    cursor: grab;
    transition: transform 0.2s ease;
}

.slider-thumb:hover {
    transform: translate(-50%, -50%) scale(1.3);
}

.slider-thumb:active {
    cursor: grabbing;
}

.algorithm-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.algo-btn {
    font-family: 'Space Mono', monospace;
    font-size: 0.65rem;
    padding: 14px 8px;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.algo-btn:hover {
    border-color: var(--text-primary);
    color: var(--text-primary);
}

.algo-btn.active {
    background: var(--text-primary);
    border-color: var(--text-primary);
    color: var(--bg);
}

.preset-palettes {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.preset-btn {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 12px;
    background: transparent;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.2s ease;
}

.preset-btn:hover {
    border-color: var(--text-secondary);
}

.preset-btn.active {
    border-color: var(--accent-sage);
    border-width: 2px;
}

.preset-colors {
    display: flex;
    gap: 3px;
}

.preset-color-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.preset-name {
    font-family: 'Space Mono', monospace;
    font-size: 0.55rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.preset-btn.active .preset-name {
    color: var(--accent-sage);
}

.custom-palette {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.custom-palette .section-title {
    border: none;
    padding: 0;
    margin-bottom: 12px;
}

.color-slots {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.color-slot {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px dashed var(--border);
    cursor: pointer;
    position: relative;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.color-slot:hover {
    border-style: solid;
    border-color: var(--text-secondary);
}

.color-slot.has-color {
    border-style: solid;
}

.color-slot .add-icon {
    font-size: 1.2rem;
    color: var(--border-dark);
    font-weight: 300;
    line-height: 1;
}

.color-slot.has-color .add-icon {
    display: none;
}

.color-slot input[type="color"] {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.color-slot .delete-btn {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 14px;
    height: 14px;
    background: var(--accent-terracotta);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 10px;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.color-slot.has-color:hover .delete-btn {
    opacity: 1;
}

.info-bar {
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 32px;
}

.info-item {
    font-family: 'Space Mono', monospace;
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.info-item span {
    color: var(--text-primary);
    margin-left: 8px;
}

@media (max-width: 900px) {
    .controls {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 24px 16px;
    }

    header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
        margin-bottom: 32px;
        padding-bottom: 20px;
    }

    .matrix-container {
        margin-bottom: 32px;
        min-height: auto;
        aspect-ratio: 1;
    }

    .matrix-container::before,
    .matrix-container::after {
        display: none;
    }

    .matrix {
        max-width: min(320px, calc(100vw - 48px));
        max-height: min(320px, calc(100vw - 48px));
    }

    .controls {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .algorithm-buttons {
        grid-template-columns: repeat(3, 1fr);
    }

    .preset-palettes {
        grid-template-columns: repeat(2, 1fr);
    }

    .info-bar {
        flex-wrap: wrap;
        gap: 12px;
    }

    .header-actions {
        width: 100%;
        justify-content: flex-start;
    }
}