/* Minimalist Black & White Theme - Valley Radio Club */

:root {
    --black: #000000;
    --white: #ffffff;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
    --accent: #000000;
    --text-primary: #000000;
    --text-secondary: #525252;
    --text-muted: #a3a3a3;
    --border: #e5e5e5;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--white);
    font-size: 16px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    width: 50px;
    height: 50px;
    background: var(--black);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: 1px;
}

.brand-text h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.callsign {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-family: 'JetBrains Mono', monospace;
    font-weight: 500;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s ease;
    position: relative;
}

.nav-menu a:hover {
    color: var(--text-secondary);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--black);
    transition: width 0.2s ease;
}

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

/* Hero Section */
.hero {
    min-height: 80vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    padding: 4rem 0;
    background: var(--gray-100);
}

.hero-content {
    padding: 2rem;
}

.hero-content h2 {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    line-height: 1.7;
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 0.875rem 2rem;
    border-radius: 0;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    display: inline-block;
    border: 1px solid transparent;
    text-align: center;
    font-family: 'Inter', sans-serif;
}

.btn-primary {
    background: var(--black);
    color: var(--white);
    border-color: var(--black);
}

.btn-primary:hover {
    background: var(--white);
    color: var(--black);
}

.btn-secondary {
    background: transparent;
    color: var(--black);
    border-color: var(--black);
}

.btn-secondary:hover {
    background: var(--black);
    color: var(--white);
}

.btn-outline {
    background: transparent;
    color: var(--black);
    border-color: var(--border);
}

.btn-outline:hover {
    background: var(--black);
    color: var(--white);
    border-color: var(--black);
}

/* Radio Diagram Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.radio-diagram {
    position: relative;
    width: 300px;
    height: 250px;
    background: var(--white);
    border: 1px solid var(--border);
    padding: 2rem;
}

.antenna-tower {
    position: absolute;
    right: 2rem;
    top: 1rem;
    width: 4px;
    height: 80px;
    background: var(--black);
}

.tower-base {
    position: absolute;
    bottom: -10px;
    left: -8px;
    width: 20px;
    height: 20px;
    background: var(--gray-300);
    border-radius: 50%;
}

.antenna-element {
    position: absolute;
    top: -10px;
    left: -8px;
    width: 20px;
    height: 2px;
    background: var(--black);
}

.radio-unit {
    position: absolute;
    bottom: 2rem;
    left: 2rem;
    width: 120px;
    height: 60px;
    background: var(--gray-200);
    border: 1px solid var(--border);
}

.unit-body {
    width: 100%;
    height: 100%;
    background: var(--white);
    border: 1px solid var(--border);
}

.unit-display {
    position: absolute;
    top: 10px;
    left: 15px;
    width: 60px;
    height: 12px;
    background: var(--black);
}

.unit-controls {
    position: absolute;
    bottom: 10px;
    left: 15px;
    display: flex;
    gap: 0.5rem;
}

.control {
    width: 8px;
    height: 8px;
    background: var(--black);
    border-radius: 50%;
}

.signal-waves {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
}

.wave {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 1px solid var(--gray-300);
    border-radius: 50%;
    animation: waveExpand 3s ease-in-out infinite;
}

.wave-1 {
    width: 60px;
    height: 60px;
    animation-delay: 0s;
}

.wave-2 {
    width: 80px;
    height: 80px;
    animation-delay: 1s;
}

.wave-3 {
    width: 100px;
    height: 100px;
    animation-delay: 2s;
}

@keyframes waveExpand {
    0% { opacity: 1; transform: translate(-50%, -50%) scale(0.8); }
    100% { opacity: 0; transform: translate(-50%, -50%) scale(1.2); }
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* About Section */
.about {
    padding: 6rem 0;
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    margin-top: 2rem;
}

.about-text h3:first-child {
    margin-top: 0;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.about-list {
    list-style: none;
    padding-left: 0;
}

.about-list li {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    padding-left: 1.5rem;
    position: relative;
}

.about-list li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--black);
    font-weight: 600;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 2rem 1rem;
    background: var(--gray-100);
    border: 1px solid var(--border);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--black);
    font-family: 'JetBrains Mono', monospace;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Events Section */
.events {
    padding: 6rem 0;
    background: var(--gray-100);
}

.events-list {
    max-width: 800px;
    margin: 0 auto;
}

.event-item {
    display: flex;
    gap: 2rem;
    padding: 2rem 0;
    border-bottom: 1px solid var(--border);
    align-items: flex-start;
}

.event-item:last-child {
    border-bottom: none;
}

.event-date {
    background: var(--black);
    color: var(--white);
    padding: 1rem;
    text-align: center;
    min-width: 80px;
    height: fit-content;
}

.event-date .month {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.25rem;
}

.event-date .day {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
}

.event-content {
    flex: 1;
}

.event-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.event-content p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.event-meta {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.meta-item {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Repeaters Section */
.repeaters {
    padding: 6rem 0;
    background: var(--white);
}

.repeaters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.repeater-item {
    background: var(--gray-100);
    padding: 2rem;
    border: 1px solid var(--border);
}

.repeater-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.repeater-details {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.detail {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.label {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
}

.value {
    color: var(--text-primary);
    font-weight: 600;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
}

.status-online {
    color: var(--black);
    position: relative;
    padding-left: 1rem;
}

.status-online::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: var(--black);
    border-radius: 50%;
}

/* Membership Section */
.membership {
    padding: 6rem 0;
    background: var(--gray-100);
}

.membership-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.membership-card {
    background: var(--white);
    border: 1px solid var(--border);
    transition: all 0.2s ease;
    position: relative;
}

.membership-card:hover {
    box-shadow: var(--shadow-lg);
}

.membership-card.featured {
    border-color: var(--black);
    transform: scale(1.02);
}

.membership-card.featured:hover {
    transform: scale(1.02);
}

.card-header {
    background: var(--black);
    color: var(--white);
    padding: 2rem;
    text-align: center;
}

.card-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
}

.price span {
    font-size: 1rem;
    font-weight: 400;
    opacity: 0.8;
}

.card-content {
    padding: 2rem;
}

.features {
    list-style: none;
    margin-bottom: 2rem;
}

.features li {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    padding-left: 1.5rem;
    position: relative;
}

.features li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--black);
    font-weight: 600;
}

/* Footer */
.footer {
    background: var(--black);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.footer-brand .logo {
    width: 40px;
    height: 40px;
    background: var(--white);
    color: var(--black);
    font-size: 1rem;
}

.footer-brand .brand-text h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.footer-brand .brand-text p {
    color: var(--gray-400);
    font-size: 0.875rem;
    font-family: 'JetBrains Mono', monospace;
}

.footer-description {
    color: var(--gray-400);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.contact-item .label {
    color: var(--gray-400);
    font-size: 0.875rem;
    font-weight: 500;
}

.contact-item .value {
    color: var(--white);
    font-size: 0.875rem;
    font-family: 'JetBrains Mono', monospace;
}

.repeater-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.repeater-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0;
    background: none;
    border: none;
}

.repeater-item .freq {
    color: var(--white);
    font-weight: 600;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
}

.repeater-item .details {
    color: var(--gray-400);
    font-size: 0.875rem;
}

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: 2rem;
    text-align: center;
}

.footer-bottom p {
    color: var(--gray-400);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu {
        gap: 1.5rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 2rem 0;
    }
    
    .hero-content h2 {
        font-size: 2.5rem;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: 1fr 1fr;
    }
    
    .event-item {
        flex-direction: column;
        gap: 1rem;
    }
    
    .event-date {
        align-self: flex-start;
    }
    
    .repeaters-grid,
    .membership-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand {
        justify-content: center;
    }
}