@charset "UTF-8";

:root {
    --color-bg: #0F203C; /* Classic Deep Blue */
    --color-text: #F8FAFC;
    --color-accent: #FCA311; /* Warm rich orange-gold for perfect contrast */
    --color-surface: #183059; /* Slightly lighter blue for cards */
    --color-border: #2A4372;
    
    --font-heading: 'Space Grotesk', system-ui, sans-serif;
    --font-body: 'Inter', system-ui, sans-serif;
    --font-math: 'Times New Roman', serif;
    
    --spacing-sm: 1rem;
    --spacing-md: 2.5rem;
    --spacing-lg: 5rem;
    --spacing-xl: 10rem;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3 {
    font-family: var(--font-heading);
    text-transform: uppercase;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

/* Header */
.site-header {
    position: fixed;
    top: 0;
    width: 100%;
    border-bottom: 1px solid var(--color-border);
    background: rgba(15, 32, 60, 0.9); /* Matches var(--color-bg) */
    backdrop-filter: blur(10px);
    z-index: 100;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--spacing-md);
    max-width: 1400px;
    margin: 0 auto;
}

.brand {
    display: flex;
    align-items: center;
}

.brand-logo {
    height: 128px;
    width: auto;
    display: block;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--color-accent);
}

/* Base Buttons */
.btn-primary, .btn-outline {
    display: inline-block;
    padding: 1rem 2rem;
    text-decoration: none;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    border-radius: 0; /* Brutalist sharp edges */
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--color-accent);
    color: #000000; /* Force black for maximum contrast and legibility */
    border: 2px solid var(--color-accent);
}

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

.btn-outline {
    background-color: transparent;
    color: var(--color-text);
    border: 2px solid var(--color-border);
}

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

/* Sections */
.section {
    padding: var(--spacing-xl) var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.bg-surface {
    background-color: var(--color-surface);
}

.section-content {
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    font-size: clamp(3rem, 6vw, 5rem);
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--spacing-xl) var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.hero-content {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 6rem);
    font-weight: 900;
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.math-sym {
    font-family: var(--font-math);
    color: var(--color-accent);
    font-weight: 400;
    display: inline-block;
    vertical-align: middle;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    max-width: 800px;
    margin-bottom: var(--spacing-lg);
    color: #AAA;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* Mission Grid */
.mission-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.mission-text p {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: #CCC;
}

.mission-text strong {
    color: var(--color-text);
}

.mission-points-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.mission-point-card {
    background: var(--color-surface);
    padding: 2rem;
    border-left: 4px solid var(--color-accent);
    transition: transform 0.3s ease;
}

.mission-point-card:hover {
    transform: translateX(10px);
}

.mission-point-card h3 {
    font-size: 1.4rem;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}

.mission-point-card p {
    font-size: 1.1rem;
    color: var(--color-text);
    opacity: 0.9;
}

/* Collab Cards */
.collab-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.collab-card {
    background: var(--color-bg);
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
}

.collab-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--color-accent);
}

.collab-card p {
    color: #CCC;
    font-size: 1.1rem;
}

/* Archive */
.archive-list {
    list-style: none;
    margin-top: var(--spacing-md);
}

.archive-list li {
    border-top: 1px solid var(--color-border);
}

.archive-list li:last-child {
    border-bottom: 1px solid var(--color-border);
}

.archive-list a {
    display: block;
    padding: 2rem 0;
    color: var(--color-text);
    text-decoration: none;
    font-size: 1.4rem;
    font-family: var(--font-heading);
    transition: color 0.3s ease, padding-left 0.3s ease;
}

.archive-list a:hover {
    color: var(--color-accent);
    padding-left: 1.5rem;
}

/* Contact */
.text-center {
    text-align: center;
}

.interactive-contact {
    background: var(--color-accent);
    color: #000000;
}

.interactive-contact .section-title {
    color: #000000;
}

.interactive-contact p {
    font-size: 1.5rem;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    font-weight: 500;
}

.btn-massive {
    display: inline-block;
    font-size: clamp(2rem, 6vw, 4rem);
    font-family: var(--font-heading);
    font-weight: 900;
    text-transform: uppercase;
    color: #000000;
    text-decoration: none;
    border-bottom: 6px solid #000000;
    padding-bottom: 0.5rem;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.btn-massive:hover {
    opacity: 0.8;
    transform: translateY(-5px);
}

/* Footer */
.site-footer {
    padding: var(--spacing-md);
    text-align: center;
    border-top: 1px solid var(--color-border);
    color: #666;
    font-size: 0.9rem;
}

/* Responsive Overrides */
@media (max-width: 900px) {
    .mission-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        display: none; /* simple mobile fallback: hide nav links, could add hamburger */
    }
    
    .hero {
        align-items: flex-start;
        padding-top: 12rem;
    }
    
    .archive-list a {
        font-size: 1.1rem;
    }
}