:root {
    /* M3 Color Roles */
    --md-sys-color-primary: #f97316;
    /* Orange */
    --md-sys-color-on-primary: #ffffff;
    --md-sys-color-secondary: #16a34a;
    /* Green */
    --md-sys-color-on-secondary: #ffffff;
    --md-sys-color-tertiary: #4f46e5;
    /* Indigo */
    --md-sys-color-on-tertiary: #ffffff;
    --md-sys-color-surface-container-high: #F3F4F6;
    --md-sys-color-surface-container-lowest: #FFFFFF;
    --md-sys-color-outline: #a8a29e;
    --md-sys-color-inverse-primary: #fb923c;
    --md-sys-color-primary-container: #ffedd5;
    --md-sys-color-on-primary-container: #9a3412;
    --md-sys-color-secondary-container: #dcfce7;
    --md-sys-color-on-secondary-container: #14532d;
    --md-sys-color-tertiary-container: #e0e7ff;
    --md-sys-color-on-tertiary-container: #3730a3;
    --md-sys-color-error: #dc2626;
    --md-sys-color-on-error: #ffffff;
    --md-sys-color-error-container: #fef2f2;
    --md-sys-color-on-error-container: #991b1b;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--md-sys-color-surface-container-high);
    color: var(--md-sys-color-on-surface);
}

/* M3 Elevated Card Style */
.m3-card {
    background-color: var(--md-sys-color-surface-container-lowest);
    border-radius: 0.75rem;
    /* 12px */
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05), 0 1px 3px 1px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

.m3-card:hover {
    box-shadow: 0 4px 8px 3px rgba(0, 0, 0, 0.15), 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* M3 Filled Button Style */
.m3-button-filled {
    background-color: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    font-weight: 700;
    padding: 0.625rem 1.5rem;
    /* 10px 24px */
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.01em;
    transition: all 0.2s ease;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.1);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
}

.m3-button-filled:hover {
    box-shadow: 0 2px 4px -1px rgba(0, 0, 0, 0.2), 0 4px 5px 0 rgba(0, 0, 0, 0.14), 0 1px 10px 0 rgba(0, 0, 0, 0.12);
    background-color: var(--md-sys-color-inverse-primary);
}

/* M3 Outlined Button Style */
.m3-button-outlined {
    background-color: transparent;
    color: var(--md-sys-color-primary);
    font-weight: 700;
    padding: 0.625rem 1.5rem;
    /* 10px 24px */
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.01em;
    border: 1px solid var(--md-sys-color-outline);
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.m3-button-outlined:hover {
    background-color: rgba(249, 115, 22, 0.08);
    /* primary with low opacity */
    border-color: var(--md-sys-color-primary);
}

/* M3 Text Button Style */
.m3-button-text {
    background-color: transparent;
    color: var(--md-sys-color-primary);
    font-weight: 700;
    padding: 0.625rem 1.5rem;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.01em;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
}

.m3-button-text:hover {
    background-color: rgba(249, 115, 22, 0.08);
}

/* M3 Top App Bar style */
.m3-top-app-bar {
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
}

/* Social Icons */
.social-icon:hover {
    color: var(--md-sys-color-primary);
}

/* Form Styles */
.form-input {
    background-color: var(--md-sys-color-surface-container-lowest);
    border: 1px solid var(--md-sys-color-outline);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: border-color 0.2s ease;
    width: 100%;
}

.form-input:focus {
    outline: none;
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 0 0 2px rgba(249, 115, 22, 0.2);
}

.form-textarea {
    background-color: var(--md-sys-color-surface-container-lowest);
    border: 1px solid var(--md-sys-color-outline);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: border-color 0.2s ease;
    width: 100%;
    min-height: 120px;
    resize: vertical;
    font-family: inherit;
}

.form-textarea:focus {
    outline: none;
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 0 0 2px rgba(249, 115, 22, 0.2);
}

/* Pricing Card Styles */
.pricing-card {
    position: relative;
    background-color: var(--md-sys-color-surface-container-lowest);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05), 0 1px 3px 1px rgba(0, 0, 0, 0.1);
    transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
}

.pricing-card:hover {
    box-shadow: 0 4px 8px 3px rgba(0, 0, 0, 0.15), 0 1px 3px rgba(0, 0, 0, 0.3);
    transform: translateY(-2px);
}

.pricing-card.featured {
    border-color: var(--md-sys-color-primary);
    background: linear-gradient(135deg, var(--md-sys-color-primary-container), var(--md-sys-color-surface-container-lowest));
}

.pricing-card.featured::before {
    content: 'Most Popular';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

/* Feature List Styles */
.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
}

.feature-list li::before {
    content: '✓';
    color: var(--md-sys-color-secondary);
    font-weight: bold;
    margin-right: 0.75rem;
    font-size: 1.125rem;
}

.feature-list li.unavailable {
    color: #9ca3af;
}

.feature-list li.unavailable::before {
    content: '✗';
    color: #d1d5db;
}

/* System Architecture Styles */
.architecture-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.architecture-component {
    text-align: center;
    flex: 1;
    min-width: 200px;
}

.architecture-arrow {
    font-size: 2rem;
    color: var(--md-sys-color-outline);
    transform: rotate(90deg);
}

@media (min-width: 768px) {
    .architecture-arrow {
        transform: rotate(0deg);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .pricing-card {
        padding: 1.5rem;
    }

    .architecture-flow {
        flex-direction: column;
        gap: 1rem;
    }

    .architecture-arrow {
        transform: rotate(90deg);
    }
}

/* M3 Typography Styles */
.m3-display-large {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.025em;
}

.m3-display-medium {
    font-size: 2.8rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.m3-headline-large {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.01em;
}

.m3-headline-medium {
    font-size: 1.75rem;
    font-weight: 600;
    line-height: 1.25;
}

.m3-title-large {
    font-size: 1.375rem;
    font-weight: 600;
    line-height: 1.3;
}

.m3-label-large {
    font-size: 0.875rem;
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: 0.025em;
    text-transform: uppercase;
}

/* Enhanced heading styles */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-feature-settings: "kern" 1, "liga" 1;
    text-rendering: optimizeLegibility;
}

/* Gradient text effect for hero heading */
.gradient-text {
    background: linear-gradient(135deg, #ffffff 0%, #e0e7ff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

@media (max-width: 768px) {
    .m3-display-large {
        font-size: 2.5rem;
    }

    .m3-display-medium {
        font-size: 2rem;
    }
}

/* Mobile Menu Styles */
#mobile-menu {
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3);
}

#mobile-menu.menu-open {
    transform: translateX(0);
}

#menu-overlay.show {
    display: block;
}

/* Menu link hover effects */
.menu-link {
    position: relative;
    padding: 8px 0;
}

.menu-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--md-sys-color-primary);
    transition: width 0.3s ease;
}

.menu-link:hover::after {
    width: 100%;
}

/* Language button active states for mobile */
#mobile-lang-en.active,
#mobile-lang-de.active {
    background-color: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
}

/* Hamburger button animation */
#hamburger-btn {
    transition: transform 0.2s ease;
}

#hamburger-btn:hover {
    transform: scale(1.1);
}

/* Ensure mobile menu is above everything */
#mobile-menu {
    z-index: 1000;
}

#menu-overlay {
    z-index: 999;
}

/* Prevent body scroll when menu is open */
body.menu-open {
    overflow: hidden;
}