/* Solid Sourcing - Custom Stylesheet */

:root {
    --color-bg-primary:   #070707;
    --color-bg-secondary: #0F0F0F;
    --color-surface:      #141414;
    --color-surface-2:    #1C1C1C;
    --color-accent:       #C4965A;
    --color-accent-dark:  #A67A40;
    --color-accent-light: #D4AA72;
    --color-text:         #EDE8DF;
    --color-text-muted:   #5A5A5A;
    --color-border:       #222222;

    --font-display: 'Playfair Display', Georgia, serif;
    --font-body:    'Inter', system-ui, sans-serif;

    --transition-layer: opacity 0.35s ease, transform 0.35s ease;
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.5);
    --shadow-card-hover: 0 8px 40px rgba(0, 0, 0, 0.7);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--color-bg-primary);
    color: var(--color-text);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}
::-webkit-scrollbar-thumb {
    background: var(--color-text-muted);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent);
}
* {
    scrollbar-width: thin;
    scrollbar-color: var(--color-text-muted) var(--color-bg-secondary);
}

.font-display,
h1, h2, h3 {
    font-family: var(--font-display);
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background-color: var(--color-accent);
    color: #0F0F0F;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.875rem;
    letter-spacing: 0.025em;
    padding: 0.625rem 1.5rem;
    border-radius: 2px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
    white-space: nowrap;
}
.btn-primary:hover {
    background-color: var(--color-accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(200, 169, 126, 0.3);
}
.btn-primary:active {
    transform: translateY(0);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background-color: transparent;
    color: var(--color-text);
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.875rem;
    letter-spacing: 0.025em;
    padding: 0.625rem 1.5rem;
    border-radius: 2px;
    border: 1px solid var(--color-text-muted);
    cursor: pointer;
    text-decoration: none;
    transition: border-color 0.2s ease, color 0.2s ease, transform 0.15s ease;
    white-space: nowrap;
}
.btn-ghost:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-1px);
}
.btn-ghost:active {
    transform: translateY(0);
}

.visualizer-stage {
    position: relative;
    overflow: hidden;
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: #111;
    border-radius: 4px;
}

.visualizer-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-layer);
}

.visualizer-layer.hidden-layer {
    opacity: 0;
    pointer-events: none;
}

.visualizer-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    background: linear-gradient(135deg, #1A1A1A 0%, #111 100%);
    color: var(--color-text-muted);
}

.visualizer-placeholder svg {
    color: var(--color-accent);
    opacity: 0.5;
}

.style-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    overflow: hidden;
    cursor: pointer;
    transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: var(--shadow-card);
}
.style-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-3px);
    box-shadow: var(--shadow-card-hover);
}
.style-card.active {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 1px var(--color-accent), var(--shadow-card-hover);
}

/* Swatch card (small, used in visualizer sidebar) */
.swatch-card {
    background-color: var(--color-surface-2);
    border: 1px solid var(--color-border);
    border-radius: 3px;
    padding: 0.5rem;
    cursor: pointer;
    transition: border-color 0.15s ease, background-color 0.15s ease;
    display: flex;
    align-items: center;
    gap: 0.625rem;
}
.swatch-card:hover {
    border-color: var(--color-accent);
    background-color: #2a2a2a;
}
.swatch-card.active {
    border-color: var(--color-accent);
    background-color: rgba(200, 169, 126, 0.07);
}

.swatch-dot {
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 2px;
    flex-shrink: 0;
    border: 1px solid rgba(255,255,255,0.1);
}

.category-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    overflow: hidden;
    transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: var(--shadow-card);
}
.category-card:hover {
    border-color: rgba(200, 169, 126, 0.5);
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
}
.category-card .accent-bar {
    height: 3px;
    width: 100%;
}

.palette-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    overflow: hidden;
    transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: var(--shadow-card);
}
.palette-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-3px);
    box-shadow: var(--shadow-card-hover);
}

.step-indicator {
    display: flex;
    align-items: center;
    gap: 0;
}
.step-dot {
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid var(--color-border);
    background-color: var(--color-surface-2);
    color: var(--color-text-muted);
    transition: background-color 0.2s, border-color 0.2s, color 0.2s;
    flex-shrink: 0;
}
.step-dot.active {
    border-color: var(--color-accent);
    background-color: var(--color-accent);
    color: #0F0F0F;
}
.step-dot.done {
    border-color: var(--color-accent);
    background-color: transparent;
    color: var(--color-accent);
}
.step-line {
    flex: 1;
    height: 1px;
    background-color: var(--color-border);
    transition: background-color 0.3s;
}
.step-line.done {
    background-color: var(--color-accent);
}

.form-input {
    width: 100%;
    background-color: var(--color-surface-2);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.875rem;
    padding: 0.625rem 0.875rem;
    border-radius: 3px;
    outline: none;
    transition: border-color 0.2s ease;
    -webkit-appearance: none;
    appearance: none;
}
.form-input:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px rgba(200, 169, 126, 0.15);
}
.form-input::placeholder {
    color: var(--color-text-muted);
}
.form-input option {
    background-color: #1E1E1E;
    color: var(--color-text);
}

.form-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 0.4rem;
}

.section-divider {
    width: 48px;
    height: 2px;
    background-color: var(--color-accent);
    border-radius: 1px;
}

.sidebar-panel {
    background-color: var(--color-surface);
    border-right: 1px solid var(--color-border);
    overflow-y: auto;
    height: 100%;
}
.sidebar-section-title {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 0.625rem;
    padding-bottom: 0.375rem;
    border-bottom: 1px solid var(--color-border);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}
.fade-in {
    animation: fadeIn 0.4s ease forwards;
}

.text-accent { color: var(--color-accent); }
.bg-accent   { background-color: var(--color-accent); }
.border-accent { border-color: var(--color-accent); }

/* Horizontal scrollable row of swatches */
.swatch-scroll-row {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding-bottom: 0.25rem;
    scrollbar-width: thin;
}
.swatch-scroll-row::-webkit-scrollbar { height: 4px; }

.hero-overlay {
    background: linear-gradient(
        to bottom,
        rgba(15, 15, 15, 0.85) 0%,
        rgba(15, 15, 15, 0.6) 50%,
        rgba(15, 15, 15, 0.95) 100%
    );
}

@media (max-width: 768px) {
    .visualizer-layout {
        flex-direction: column;
    }
    .visualizer-sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
        max-height: 320px;
    }
}

.compare-panel {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    overflow: hidden;
}
.compare-label {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-accent);
}

@media print {
    .no-print { display: none !important; }
    body { background: white; color: black; }
}