/* ============================================
   TREX.SO SPACEX DESIGN SYSTEM
   ============================================ */

/* TYPOGRAPHY */
* {
    font-family: 'Inter', 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
    letter-spacing: -0.02em;
}

/* COLOR SYSTEM */
:root {
    --bg-primary: #000000;
    --bg-card: #121212;
    --cyan-accent: #00AEF0;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-tertiary: rgba(255, 255, 255, 0.4);
    --border-minimal: rgba(255, 255, 255, 0.1);
}

body {
    background: var(--bg-primary);
    color: var(--text-primary);
}

/* UTILITY CLASSES */
.text-cyan-accent { color: var(--cyan-accent) !important; }
.bg-cyan-accent { background-color: var(--cyan-accent) !important; }
.border-cyan-accent { border-color: var(--cyan-accent) !important; }
.bg-dark-card { background-color: var(--bg-card) !important; }
.border-minimal { border-color: var(--border-minimal) !important; }
.tracking-tighter { letter-spacing: -0.04em !important; }
.tracking-tight { letter-spacing: -0.02em !important; }

/* BUTTONS - Sharp SpaceX Style */
.btn-sharp {
    border-radius: 2px;
    transition: all 0.2s ease;
    letter-spacing: -0.02em;
    font-weight: 700;
}

.btn-sharp:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: var(--cyan-accent);
    color: #000000;
    padding: 0.75rem 2rem;
    border-radius: 2px;
    font-weight: 700;
    letter-spacing: -0.02em;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    box-shadow: 0 0 20px rgba(0, 174, 240, 0.5);
    transform: translateY(-1px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    padding: 0.75rem 2rem;
    border-radius: 2px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-weight: 700;
    letter-spacing: -0.02em;
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--cyan-accent);
}

/* CARDS */
.card-spacex {
    background: var(--bg-card);
    border: 1px solid var(--border-minimal);
    transition: border-color 0.2s ease;
}

.card-spacex:hover {
    border-color: var(--cyan-accent);
}

/* INPUTS */
.input-spacex {
    background: var(--bg-card);
    border: 1px solid var(--border-minimal);
    color: var(--text-primary);
    padding: 1rem 1.5rem;
    border-radius: 2px;
    letter-spacing: -0.02em;
    transition: border-color 0.2s ease;
}

.input-spacex:focus {
    outline: none;
    border-color: var(--cyan-accent);
}

.input-spacex::placeholder {
    color: var(--text-tertiary);
}

/* NAVIGATION */
.nav-spacex {
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-minimal);
}

.nav-link {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: -0.02em;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: var(--cyan-accent);
}

/* HEADINGS */
h1, h2, h3, h4, h5, h6 {
    font-weight: 900;
    letter-spacing: -0.04em;
    color: var(--text-primary);
}

.heading-hero {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 900;
    line-height: 1;
    letter-spacing: -0.04em;
}

.heading-section {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    letter-spacing: -0.04em;
}

/* TEXT */
.text-body {
    color: var(--text-secondary);
    line-height: 1.6;
    font-weight: 300;
}

.text-small {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    letter-spacing: -0.02em;
}

/* ANIMATIONS - Minimal, Only Fade-in */
.fade-in-section {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* HOVER GLOW EFFECT */
.hover-glow:hover {
    box-shadow: 0 0 20px rgba(0, 174, 240, 0.5);
}

/* STATS DISPLAY */
.stat-number {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    color: var(--cyan-accent);
    letter-spacing: -0.04em;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    letter-spacing: -0.02em;
}

/* GRID LAYOUTS */
.grid-blocks {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .grid-blocks {
        grid-template-columns: 1fr;
    }
}

/* SCROLLBAR */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: #333333;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555555;
}

/* SECTION BORDERS */
.section-border {
    border-top: 1px solid var(--border-minimal);
}

/* MOBILE OPTIMIZATIONS - 3040 Target */
@media (max-width: 768px) {
    /* Increase text contrast on mobile */
    body {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    
    /* Larger tap targets */
    .btn-sharp,
    .btn-primary,
    .btn-secondary {
        min-height: 48px;
        padding: 1rem 2rem;
    }
    
    /* Better readability */
    .text-body {
        font-size: 1rem;
        line-height: 1.7;
    }
    
    /* Improved spacing */
    section {
        padding-top: 4rem;
        padding-bottom: 4rem;
    }
}

/* HIGH CONTRAST MODE for Better Visibility */
@media (prefers-contrast: high) {
    :root {
        --border-minimal: rgba(255, 255, 255, 0.3);
        --text-secondary: rgba(255, 255, 255, 0.9);
    }
}

/* LOADING STATES */
.loading {
    opacity: 0.5;
    pointer-events: none;
}

/* FOCUS STATES for Accessibility */
*:focus-visible {
    outline: 2px solid var(--cyan-accent);
    outline-offset: 2px;
}

/* BADGE/TAG STYLES */
.badge-cyan {
    background: rgba(0, 174, 240, 0.2);
    color: var(--cyan-accent);
    padding: 0.25rem 0.75rem;
    border-radius: 2px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* TABLE STYLES */
.table-spacex {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.table-spacex th {
    background: var(--bg-card);
    color: var(--text-secondary);
    padding: 1rem;
    text-align: left;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    border-bottom: 1px solid var(--border-minimal);
}

.table-spacex td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-minimal);
    color: var(--text-primary);
}

.table-spacex tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

/* MODAL STYLES */
.modal-overlay {
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-minimal);
    border-radius: 2px;
}

/* UTILITY - Text Truncate */
.truncate-2-lines {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* RESPONSIVE TYPOGRAPHY */
@media (max-width: 640px) {
    .heading-hero {
        font-size: 2.5rem;
    }
    
    .heading-section {
        font-size: 1.75rem;
    }
}

/* PRINT STYLES */
@media print {
    body {
        background: white;
        color: black;
    }
    
    .nav-spacex,
    footer {
        display: none;
    }
}