/* Variables */
:root {
    --color-background: #231F20;
    --color-background-alt: #191616;
    --color-highlight: #D48556;
    --color-text: #FFFFFF;
    --color-text-muted: rgba(255, 255, 255, 0.75);

    --font-primary: 'Roboto', sans-serif;
    --font-heading: 'Lexend Deca', sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3.5rem;
    --spacing-2xl: 4.5rem;

    --max-width: 1440px;
    --border-radius: 1rem;
    --box-shadow: rgba(0, 0, 0, 0.16) 0 1px 4px;
}

/* Base Styles */
body {
    background-color: var(--color-background);
    color: var(--color-text);
    font-family: var(--font-primary);
    font-weight: 400;
    margin: 0;
    overflow-x: hidden;
}

main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--color-text);
    font-family: var(--font-heading);
    font-weight: 500;
    margin: 0;
}

h1 {
    font-size: 4rem;
}

h2 {
    font-size: 3rem;
}

h3 {
    font-size: 2.25rem;
}

h4 {
    font-size: 1.5rem;
}

a {
    color: var(--color-highlight);
    text-decoration: underline;
    font-weight: bold;
}

a:hover {
    color: var(--color-highlight);
    opacity: 0.65;
}

.divider {
    border: var(--color-background-alt) 1px solid;
    width: 100%;
}

/* Navigation */
header {
    position: sticky;
    top: 0;
    z-index: 10;
    padding: 1rem 0;
    background-color: var(--color-background);
}

.nav {
    align-items: center;
    display: flex;
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 500;
    justify-content: space-between;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.nav a {
    color: var(--color-text);
    text-decoration: none;
}

.nav ul {
    display: flex;
    gap: var(--spacing-sm);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav h3 {
    color: var(--color-highlight);
}

/* Hero Section */
.hero-header {
    align-items: center;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    justify-content: center;
    margin: 0 auto;
    padding: var(--spacing-lg) 0;
    width: 100%;
}

.hero-header h1 {
    text-align: center;
    margin: 0;
}

.hero-header h4 {
    text-align: center;
    max-width: 850px;
    margin: var(--spacing-sm) 0 var(--spacing-xl) 0;
}

.hero-video {
    max-width: 1400px;
    max-height: 900px;
    width: 100%;
    height: auto;
    display: block;
    margin: 0;
}

/* Section Layouts */
#theOpportunity,
#theProblem,
#theSolution,
#aboutCDCR {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.section-header {
    grid-column: 1 / -1;
    margin-bottom: calc(-1 * var(--spacing-lg));
}

.section-header h2 {
    margin: 0 0 var(--spacing-lg) 0;
    text-align: center;
}

.section-header h2::after {
    content: '';
    display: block;
    width: 120px;
    height: 3px;
    background-color: var(--color-highlight);
    margin: var(--spacing-sm) auto 0;
}

/* Cards */
.opportunities-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.opportunities-wrapper > *:last-child:nth-child(odd) {
    grid-column: 1 / -1;
    justify-self: center;
    width: calc((100% - var(--spacing-lg)) / 2);
}

.opportunity-card {
    background-color: var(--color-background-alt);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    transition: transform 0.2s ease-in-out;
    box-shadow: var(--box-shadow);
}

.opportunity-card:hover {
    transform: translateY(-5px);
}

.opportunity-card-special {
    border: 1px solid var(--color-highlight);
    max-width: 850px;
    margin: 0 auto;
}

.card-content h3 {
    color: var(--color-highlight);
    font-size: 1.5rem;
    margin: 0 0 var(--spacing-sm) 0;
    text-align: center;
}

.card-content p {
    color: var(--color-text-muted);
    line-height: 1.6;
    margin: 0;
}

.card-content ul {
    padding: 0 0 0 var(--spacing-sm);
}

.card-content li {
    color: var(--color-text-muted);
    margin-bottom: 0.4rem;
}

/* Main Points */
.main-point {
    display: flex;
    gap: var(--spacing-2xl);
}

.main-point h2 {
    margin: 0;
}

.main-point h2::after {
    content: '';
    display: block;
    width: 100px;
    height: 3px;
    background-color: var(--color-highlight);
    margin-top: 0.75rem;
}

.main-point img {
    width: 100%;
    height: auto;
    max-width: 595px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* Social Cards */
.social-cards-wrapper {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin: var(--spacing-2xl) 0;
}

.social-card {
    background-color: var(--color-background-alt);
    border-radius: calc(var(--border-radius) / 2);
    border: 1px solid var(--color-background);
    padding: var(--spacing-lg);
    color: var(--color-text);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    transition: transform 0.2s ease-in-out;
    box-shadow: var(--box-shadow);
}

.social-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-highlight);
}

.social-card-image {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: calc(var(--border-radius) / 4);
}

.social-card-type {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 500;
    margin: 0;
}

/* Footer */
.footer {
    background: var(--color-background-alt);
}

.footer > div {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.footer-logo {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.footer-image {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: calc(var(--border-radius) / 4);
}

.footer-text {
    color: var(--color-text);
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 500;
    font-family: var(--font-heading);
}

.footer-text:hover {
    color: var(--color-highlight);
}

/* Mobile Menu Styles */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 24px;
    position: relative;
}

.hamburger {
    display: block;
    width: 30px;
    height: 2px;
    background: var(--color-text);
    position: relative;
    transition: background 0.2s ease-out;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 30px;
    height: 2px;
    background: var(--color-text);
    transition: transform 0.2s ease-out;
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    bottom: -8px;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -320px;
    width: 85%;
    max-width: 320px;
    height: 100%;
    background: var(--color-background-alt);
    padding: var(--spacing-md);
    z-index: 100;
    transition: transform 0.3s ease-out;
    overflow-y: auto;
    display: none;
}

.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 90;
    opacity: 0;
    transition: opacity 0.3s ease-out;
    pointer-events: none;
    display: none;
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.mobile-menu-close {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.close-icon {
    display: block;
    width: 24px;
    height: 24px;
    position: relative;
}

.close-icon::before,
.close-icon::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    top: 50%;
    left: 0;
}

.close-icon::before {
    transform: rotate(45deg);
}

.close-icon::after {
    transform: rotate(-45deg);
}

.mobile-menu-items {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-menu-items li {
    margin-bottom: var(--spacing-md);
}

.mobile-menu-items a {
    color: var(--color-text);
    text-decoration: none;
    font-size: 1.25rem;
    font-family: var(--font-heading);
    display: block;
    padding: var(--spacing-xs) 0;
}

/* Mobile Menu Active States */
.mobile-menu.active {
    height: 100vh;
    transform: translateX(-320px);
    visibility: visible;
}

.mobile-menu-overlay.active {
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
}

/* Mobile Styles */
@media (max-width: 768px) {
    /* Hide desktop navigation */
    .nav ul {
        display: none;
    }

    /* Show mobile menu button */
    .mobile-menu-toggle {
        display: block;
    }

    /* Enable mobile menu and overlay (but still hidden until activated) */
    .mobile-menu {
        display: block;
        visibility: hidden;
    }

    .mobile-menu.active {
        visibility: visible;
    }

    .mobile-menu-overlay {
        display: block;
        visibility: hidden;
    }

    .mobile-menu-overlay.active {
        visibility: visible;
    }
}

/* Responsive Design */
@media (max-width: 968px) {
    #theOpportunity,
    #theProblem,
    #theSolution,
    #aboutCDCR {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .main-point {
        flex-direction: column;
    }

    .social-cards-wrapper {
        grid-template-columns: 1fr;
    }

    .opportunities-wrapper > *:last-child:nth-child(odd) {
        grid-column: 1 / -1;
        justify-self: center;
        width: calc(100% - 40px);
    }

}

@media (max-width: 480px) {
    h1 {
        font-size: 3rem;
    }

    h2 {
        font-size: 2.5rem;
    }

    h3 {
        font-size: 2rem;
    }

    h4 {
        font-size: 1.25rem;
    }

    .opportunities-wrapper,
    .image-grid {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 768px) {
    .footer > div {
        flex-direction: row;
    }
}