/* ==========================================================================
   1. FÄRGVARIABLER (LIGHT & DARK MODE)
   ========================================================================== */
:root {
    --bg-color: #f1f5f9;
    --card-bg: #ffffff;
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    
    --accent-color: #2563eb;
    --accent-hover: #1d4ed8;
    
    --btn-sec-bg: #0f172a;
    --btn-sec-hover: #1e293b;
    
    --badge-bg: #e0e7ff;
    --badge-text: #3730a3;
    
    --timer-bg: #fef2f2;
    --timer-border: #fecaca;
    --timer-text: #dc2626;

    --matrix-bg: #f8fafc;
    --matrix-cell-bg: #ffffff;
    --matrix-cell-border: #cbd5e1;
    --matrix-shape-stroke: #0f172a;
}

[data-theme="dark"] {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    
    --accent-color: #3b82f6;
    --accent-hover: #60a5fa;
    
    --btn-sec-bg: #334155;
    --btn-sec-hover: #475569;
    
    --badge-bg: #312e81;
    --badge-text: #e0e7ff;
    
    --timer-bg: #450a0a;
    --timer-border: #7f1d1d;
    --timer-text: #fca5a5;

    --matrix-bg: #0f172a;
    --matrix-cell-bg: #1e293b;
    --matrix-cell-border: #475569;
    --matrix-shape-stroke: #f8fafc;
}

/* ==========================================================================
   2. BASE & LAYOUT
   ========================================================================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    padding: 32px;
    width: 100%;
    max-width: 520px;
    position: relative;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.hidden { display: none !important; }
.text-center { text-align: center; }

/* ==========================================================================
   3. THEME TOGGLE BUTTON
   ========================================================================== */
.theme-toggle-container {
    position: absolute;
    top: 15px;
    right: 20px;
    z-index: 1000;
}

.theme-toggle-btn {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 14px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: all 0.2s ease;
}

.theme-toggle-btn:hover {
    border-color: var(--accent-color);
}

/* ==========================================================================
   4. TYPOGRAPHY & BUTTONS
   ========================================================================== */
.logo-icon {
    display: flex;
    justify-content: center;
    margin-bottom: 16px;
}

h1 {
    font-size: 28px;
    font-weight: 800;
    text-align: center;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.5;
    margin-bottom: 28px;
}

.button-group {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.btn {
    padding: 16px;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    width: 100%;
}

.btn-primary {
    background-color: var(--accent-color);
    color: #ffffff;
}

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

.btn-secondary {
    background-color: var(--btn-sec-bg);
    color: #ffffff;
}

.btn-secondary:hover {
    background-color: var(--btn-sec-hover);
    transform: translateY(-1px);
}

.btn-title {
    font-size: 17px;
    font-weight: 700;
}

.btn-sub {
    font-size: 12px;
    opacity: 0.85;
}

.btn-full {
    margin-top: 24px;
}

/* ==========================================================================
   5. TEST SCREEN & SVG MATRIX
   ========================================================================== */
.header-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.badge {
    background: var(--badge-bg);
    color: var(--badge-text);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 700;
}

.timer {
    font-size: 18px;
    font-weight: 800;
    color: var(--timer-text);
    font-variant-numeric: tabular-nums;
    background: var(--timer-bg);
    padding: 6px 14px;
    border-radius: 8px;
    border: 1px solid var(--timer-border);
}

.svg-container {
    background: var(--matrix-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
}

.svg-container svg {
    max-width: 100%;
    height: auto;
}

/* Dynamisk SVG-styling för matriserna i både Light & Dark mode */
.cell {
    fill: var(--matrix-cell-bg) !important;
    stroke: var(--matrix-cell-border) !important;
}

.shape {
    stroke: var(--matrix-shape-stroke) !important;
}

.shape-filled {
    fill: var(--matrix-shape-stroke) !important;
    stroke: var(--matrix-shape-stroke) !important;
}

.grid-dot {
    fill: var(--matrix-shape-stroke) !important;
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.option-btn {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    padding: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    justify-content: center;
    align-items: center;
}

.option-btn:hover {
    border-color: var(--accent-color);
    background: var(--matrix-bg);
    transform: scale(1.02);
}

/* ==========================================================================
   6. DEBUG & RESULTS
   ========================================================================== */
.debug-panel {
    margin-top: 24px;
    padding: 12px 16px;
    background: #fffbeb;
    border: 1px solid #fcd34d;
    border-radius: 8px;
    font-size: 12px;
    color: #92400e;
}

[data-theme="dark"] .debug-panel {
    background: #451a03;
    border-color: #78350f;
    color: #fde68a;
}

.debug-header {
    font-weight: 700;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.debug-stats {
    display: flex;
    justify-content: space-between;
}

.iq-score {
    font-size: 64px;
    font-weight: 900;
    color: var(--accent-color);
    margin: 16px 0 8px 0;
    line-height: 1;
}

.iq-description {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 5px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@media print {
    body {
        background: #fff !important;
        color: #000 !important;
    }
    .no-print, #setup-screen, #test-screen, .btn, .theme-toggle-container {
        display: none !important;
    }
    #result-screen {
        box-shadow: none !important;
        border: none !important;
        padding: 0 !important;
        margin: 0 !important;
    }
    .result-item {
        page-break-inside: avoid;
        border-bottom: 1px solid #ccc;
        padding: 8px 0;
    }
}