* {
    box-sizing: border-box;
}

:root {
    /* Baseline MD3 Tokens */
    --m3-sys-color-primary: #6750A4;
    --m3-sys-color-on-primary: #ffffff;
    --m3-sys-color-primary-container: #eaddff;
    --m3-sys-color-on-primary-container: #21005d;

    --m3-sys-color-secondary: #625b71;
    --m3-sys-color-on-secondary: #ffffff;
    --m3-sys-color-secondary-container: #e8def8;
    --m3-sys-color-on-secondary-container: #1d192b;

    --m3-sys-color-tertiary: #7d5260;
    --m3-sys-color-on-tertiary: #ffffff;
    --m3-sys-color-tertiary-container: #ffd8e4;
    --m3-sys-color-on-tertiary-container: #31111d;

    --m3-sys-color-error: #b3261e;
    --m3-sys-color-on-error: #ffffff;
    --m3-sys-color-error-container: #f9dedc;
    --m3-sys-color-on-error-container: #410e0b;

    --m3-sys-color-outline: #79747e;
    --m3-sys-color-outline-variant: #cac4d0;

    --m3-sys-color-surface: #fef7ff;
    --m3-sys-color-on-surface: #1d1b20;
    --m3-sys-color-surface-variant: #e7e0ec;
    --m3-sys-color-on-surface-variant: #49454f;

    --m3-sys-color-surface-container-low: #f7f2fa;
    --m3-sys-color-surface-container: #f3edf7;
    --m3-sys-color-surface-container-high: #ece6f0;

    /* Typography */
    --m3-sys-typescale-display-large-font: 'Inter', sans-serif;
    --m3-sys-typescale-display-large-weight: 400;
    --m3-sys-typescale-display-large-size: 57px;

    --m3-sys-typescale-headline-large-font: 'Inter', sans-serif;
    --m3-sys-typescale-headline-large-weight: 400;
    --m3-sys-typescale-headline-large-size: 32px;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--m3-sys-color-surface);
    color: var(--m3-sys-color-on-surface);
    line-height: 1.5;
}

/* Glassmorphism & Modern Utils */
.glass-panel {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 28px;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.animate-fade-in {
    animation: fadeIn 0.8s cubic-bezier(0.2, 0, 0, 1) forwards;
}

/* Layout Sections */
.hero-section {
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
    background: radial-gradient(circle at top right, var(--m3-sys-color-primary-container), transparent 40%),
        radial-gradient(circle at bottom left, var(--m3-sys-color-secondary-container), transparent 40%);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    padding: 4rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    padding: 32px;
    border-radius: 28px;
    background-color: var(--m3-sys-color-surface-container);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.btn-primary {
    background-color: var(--m3-sys-color-primary);
    color: var(--m3-sys-color-on-primary);
    padding: 12px 24px;
    border-radius: 20px;
    text-decoration: none;
    font-weight: 500;
    transition: filter 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary:hover {
    filter: brightness(1.1);
}

.btn-outlined {
    border: 1px solid var(--m3-sys-color-outline);
    color: var(--m3-sys-color-primary);
    padding: 12px 24px;
    border-radius: 20px;
    text-decoration: none;
    font-weight: 500;
}

.nav-menu-section {
    padding: 24px 28px 8px 28px;
    font-size: 18px;
    font-weight: 900;
    font-style: italic;
    text-decoration: underline;
    text-underline-offset: 4px;
    color: var(--m3-sys-color-on-surface-variant);
    letter-spacing: 0.5px;
    display: block;
}