/* ========================================
   BrainBoost Legal Pages - Styles
   Theme: Purple & Blue Gradient
   ======================================== */

/* ========== CSS Variables ========== */
:root {
    /* Brand Colors - matching app theme */
    --color-purple: #8B5CF6;
    --color-purple-light: #A78BFA;
    --color-purple-dark: #7C3AED;
    --color-blue: #3B82F6;
    --color-blue-light: #60A5FA;
    --color-blue-dark: #2563EB;

    /* Neutral Colors */
    --color-white: #FFFFFF;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;

    /* Semantic Colors */
    --color-text-primary: var(--color-gray-900);
    --color-text-secondary: var(--color-gray-600);
    --color-text-light: var(--color-gray-500);
    --color-link: var(--color-purple);
    --color-link-hover: var(--color-purple-dark);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--color-text-primary);
    background: linear-gradient(135deg,
        rgba(139, 92, 246, 0.05) 0%,
        rgba(59, 130, 246, 0.03) 50%,
        rgba(139, 92, 246, 0.02) 100%
    );
    background-attachment: fixed;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========== Container ========== */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    animation: fadeIn 0.6s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========== Header ========== */
.header {
    text-align: center;
    padding: var(--spacing-2xl) 0;
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 300px;
    height: 300px;
    background: radial-gradient(circle,
        rgba(139, 92, 246, 0.1) 0%,
        rgba(59, 130, 246, 0.05) 50%,
        transparent 70%
    );
    pointer-events: none;
    z-index: -1;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.brain-icon {
    font-size: 3rem;
    filter: drop-shadow(0 4px 8px rgba(139, 92, 246, 0.2));
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-purple), var(--color-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.tagline {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    font-weight: 500;
    margin-top: var(--spacing-xs);
}

/* ========== Content Area ========== */
.content {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-xl);
    margin-bottom: var(--spacing-xl);
}

.page-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.last-updated {
    text-align: center;
    color: var(--color-text-light);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-2xl);
    font-style: italic;
}

.intro-text {
    background: linear-gradient(135deg,
        rgba(139, 92, 246, 0.08) 0%,
        rgba(59, 130, 246, 0.06) 100%
    );
    border-left: 4px solid var(--color-purple);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-2xl);
}

.intro-text p {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-gray-700);
    margin: 0;
}

/* ========== Policy Sections ========== */
.policy-section {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-gray-200);
}

.policy-section:last-of-type {
    border-bottom: none;
    padding-bottom: 0;
}

.policy-section h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid transparent;
    background: linear-gradient(to right, var(--color-purple), var(--color-blue)) left bottom no-repeat;
    background-size: 60px 2px;
}

.policy-section h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-gray-800);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.policy-section h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-purple);
    margin-bottom: var(--spacing-sm);
}

.policy-section p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.policy-section ul {
    list-style: none;
    margin-bottom: var(--spacing-md);
    padding-left: 0;
}

.policy-section ul li {
    position: relative;
    padding-left: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.policy-section ul li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-purple);
    font-weight: 700;
    font-size: 1.25rem;
}

.policy-section ul li strong {
    color: var(--color-gray-800);
    font-weight: 600;
}

/* ========== Service Cards ========== */
.service-card {
    background: var(--color-gray-50);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-normal);
}

.service-card:hover {
    background: var(--color-white);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.service-card h4 {
    margin-top: 0;
}

.service-card p {
    margin-bottom: var(--spacing-sm);
    font-size: 0.9375rem;
}

/* ========== Contact Info ========== */
.contact-info {
    background: linear-gradient(135deg,
        rgba(139, 92, 246, 0.05) 0%,
        rgba(59, 130, 246, 0.03) 100%
    );
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.contact-info p {
    margin-bottom: var(--spacing-sm);
}

.contact-info p:last-child {
    margin-bottom: 0;
}

/* ========== Links ========== */
a {
    color: var(--color-link);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(to right, var(--color-purple), var(--color-blue));
    transition: width var(--transition-normal);
}

a:hover {
    color: var(--color-link-hover);
}

a:hover::after {
    width: 100%;
}

a[target="_blank"]::before {
    content: '↗';
    display: inline-block;
    margin-right: 0.25rem;
    font-size: 0.875em;
}

/* ========== Acknowledgment Section ========== */
.acknowledgment {
    background: linear-gradient(135deg,
        rgba(139, 92, 246, 0.1) 0%,
        rgba(59, 130, 246, 0.08) 100%
    );
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    border: 2px solid var(--color-purple);
}

.acknowledgment h2 {
    background: none;
    border: none;
    padding: 0;
    margin-bottom: var(--spacing-md);
}

.acknowledgment p {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-gray-800);
    letter-spacing: 0.02em;
    margin: 0;
}

/* ========== Footer ========== */
.footer {
    text-align: center;
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-2xl);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.footer-links a {
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    background: var(--color-gray-100);
    color: var(--color-gray-700);
    font-weight: 600;
    transition: all var(--transition-normal);
}

.footer-links a::after {
    display: none;
}

.footer-links a:hover {
    background: var(--color-gray-200);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.footer-links a.active {
    background: linear-gradient(135deg, var(--color-purple), var(--color-blue));
    color: var(--color-white);
}

.copyright {
    color: var(--color-text-light);
    font-size: 0.875rem;
}

/* ========== Scroll to Top Button ========== */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-purple), var(--color-blue));
    color: var(--color-white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 1000;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.scroll-to-top:active {
    transform: translateY(-2px);
}

/* ========== Responsive Design ========== */
@media (max-width: 768px) {
    :root {
        font-size: 14px;
    }

    .container {
        padding: var(--spacing-md);
    }

    .content {
        padding: var(--spacing-lg);
        border-radius: var(--radius-xl);
    }

    .header h1 {
        font-size: 2rem;
    }

    .brain-icon {
        font-size: 2.5rem;
    }

    .page-title {
        font-size: 1.75rem;
    }

    .policy-section h2 {
        font-size: 1.5rem;
    }

    .policy-section h3 {
        font-size: 1.125rem;
    }

    .footer-links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .footer-links a {
        display: block;
    }

    .scroll-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 2.5rem;
        height: 2.5rem;
    }
}

@media (max-width: 480px) {
    .header {
        padding: var(--spacing-lg) 0;
    }

    .logo {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .policy-section ul li {
        padding-left: var(--spacing-lg);
    }
}

/* ========== Print Styles ========== */
@media print {
    body {
        background: white;
    }

    .header::before,
    .scroll-to-top,
    .footer-links {
        display: none;
    }

    .content {
        box-shadow: none;
        border: 1px solid var(--color-gray-300);
    }

    a {
        color: var(--color-gray-900);
        text-decoration: underline;
    }

    a::after {
        display: none;
    }

    a[href^="http"]:after {
        content: " (" attr(href) ")";
        font-size: 0.875em;
        color: var(--color-gray-600);
    }
}

/* ========== Dark Mode Support (Optional) ========== */
@media (prefers-color-scheme: dark) {
    /* Uncomment to enable dark mode */
    /*
    :root {
        --color-text-primary: var(--color-gray-100);
        --color-text-secondary: var(--color-gray-300);
        --color-text-light: var(--color-gray-400);
    }

    body {
        background: linear-gradient(135deg,
            rgba(139, 92, 246, 0.1) 0%,
            rgba(59, 130, 246, 0.08) 50%,
            rgba(139, 92, 246, 0.06) 100%
        );
        background-color: var(--color-gray-900);
    }

    .content {
        background: var(--color-gray-800);
    }

    .service-card {
        background: var(--color-gray-700);
        border-color: var(--color-gray-600);
    }
    */
}