/* ============================================
   InnerlyTests - Base Styles & Dark Theme
   ============================================ */

/* CSS Variables - Design Tokens */
:root {
    --bg: #0f0f0f;
    --card: #1a1a1a;
    --text: #eeeeee;
    --text-muted: #999999;
    --accent: #7fffd4;
    --accent-hover: #5fe6bb;
    --border: #2a2a2a;
    --error: #ff6b6b;
    --success: #51cf66;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;

    /* Transitions */
    --transition: all 0.3s ease;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    background: var(--card);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border);
}

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--accent);
    color: var(--bg);
    padding: var(--spacing-sm);
    text-decoration: none;
    z-index: 100;
    font-weight: 600;
}

.skip-link:focus {
    top: 0;
}

/* Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Smooth Transitions */
a,
button,
input,
select,
textarea {
    transition: var(--transition);
}

/* Focus Styles for Accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Card Styles */
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: var(--transition);
}

.card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(127, 255, 212, 0.1);
}

/* Button Base Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    font-size: 1rem;
}

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

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

.btn-secondary {
    background: var(--card);
    color: var(--text);
    border: 1px solid var(--border);
}

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

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Progress Bar */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--card);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--accent-hover));
    transition: width 0.5s ease;
}

/* Toast Notifications */
.toast {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    background: var(--card);
    color: var(--text);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Loading Spinner */
.spinner {
    border: 3px solid var(--card);
    border-top: 3px solid var(--accent);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

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

    100% {
        transform: rotate(360deg);
    }
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

.text-muted {
    color: var(--text-muted);
}

.mt-1 {
    margin-top: var(--spacing-xs);
}

.mt-2 {
    margin-top: var(--spacing-sm);
}

.mt-3 {
    margin-top: var(--spacing-md);
}

.mt-4 {
    margin-top: var(--spacing-lg);
}

.mb-1 {
    margin-bottom: var(--spacing-xs);
}

.mb-2 {
    margin-bottom: var(--spacing-sm);
}

.mb-3 {
    margin-bottom: var(--spacing-md);
}

.mb-4 {
    margin-bottom: var(--spacing-lg);
}

/* Print Styles (for future PDF generation) */
@media print {
    body {
        background: white;
        color: black;
    }

    .no-print {
        display: none !important;
    }

    .card {
        border: 1px solid #ccc;
        page-break-inside: avoid;
    }
}

/* Range Input (Slider) Styles */
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 8px;
    background: linear-gradient(to right, var(--border) 0%, var(--accent) 50%, var(--border) 100%);
    border-radius: var(--radius-sm);
    outline: none;
    cursor: pointer;
    border: 1px solid var(--border);
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 28px;
    height: 28px;
    background: var(--accent);
    border: 3px solid var(--bg);
    border-radius: 50%;
    cursor: grab;
    transition: var(--transition);
    box-shadow: 0 2px 8px rgba(127, 255, 212, 0.4), 0 0 0 1px var(--accent);
}

input[type="range"]:active::-webkit-slider-thumb {
    cursor: grabbing;
    transform: scale(1.15);
}

input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--accent-hover);
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(127, 255, 212, 0.6), 0 0 0 2px var(--accent);
}

input[type="range"]::-moz-range-thumb {
    width: 28px;
    height: 28px;
    background: var(--accent);
    border: 3px solid var(--bg);
    border-radius: 50%;
    cursor: grab;
    transition: var(--transition);
    box-shadow: 0 2px 8px rgba(127, 255, 212, 0.4), 0 0 0 1px var(--accent);
}

input[type="range"]:active::-moz-range-thumb {
    cursor: grabbing;
    transform: scale(1.15);
}

input[type="range"]::-moz-range-thumb:hover {
    background: var(--accent-hover);
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(127, 255, 212, 0.6), 0 0 0 2px var(--accent);
}

input[type="range"]::-moz-range-track {
    background: linear-gradient(to right, var(--border) 0%, var(--accent) 50%, var(--border) 100%);
    border-radius: var(--radius-sm);
    height: 8px;
    border: 1px solid var(--border);
}

/* Print Styles (for future PDF generation) */
@media print {
    body {
        background: white;
        color: black;
    }

    .no-print {
        display: none !important;
    }

    .card {
        border: 1px solid #ccc;
        page-break-inside: avoid;
    }
}

/* Responsive Typography */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
}