:root {
    /* Color Palette */
    --color-navy: #1e3a5f;
    --color-cream: #f5f1e8;
    --color-light-blue: #4a90a4;
    --color-coral: #ff6b6b;
    --color-charcoal: #2d3436;
    --color-white: #ffffff;
    --color-light-gray: #e8e8e8;
    --color-medium-gray: #95a5a6;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-navy) 0%, var(--color-light-blue) 100%);
    --gradient-overlay: linear-gradient(180deg, rgba(30, 58, 95, 0.7) 0%, rgba(74, 144, 164, 0.5) 100%);

    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(245, 241, 232, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition-medium);
}

.navbar.scrolled {
    background: rgba(245, 241, 232, 0.98);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-navy);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--color-charcoal);
    text-decoration: none;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--color-coral);
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-light-blue);
}

.nav-link:hover::after {
    width: 80%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-navy);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><path d="M0,300 Q300,200 600,300 T1200,300 L1200,600 L0,600 Z" fill="rgba(74,144,164,0.1)"/></svg>') no-repeat center bottom;
    background-size: cover;
    opacity: 0.3;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-overlay);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--color-white);
    animation: fadeInUp 1s ease;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 2rem);
    font-weight: 300;
    margin-bottom: var(--spacing-xs);
    opacity: 0.95;
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.3rem);
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    display: block;
    width: 24px;
    height: 40px;
    border: 2px solid var(--color-white);
    border-radius: 20px;
    position: relative;
}

.scroll-indicator span::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--color-white);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-medium);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--color-coral);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: #ff5252;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--color-light-blue);
    color: var(--color-white);
}

.btn-secondary:hover {
    background: #3a7a8a;
    transform: translateY(-2px);
}

/* Section Styles */
.section {
    padding: var(--spacing-xl) 0;
}

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

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3rem);
    color: var(--color-navy);
    margin-bottom: var(--spacing-sm);
}

.title-underline {
    width: 80px;
    height: 4px;
    background: var(--color-coral);
    margin: 0 auto var(--spacing-sm);
    border-radius: 2px;
}

.section-description {
    font-size: 1.1rem;
    color: var(--color-medium-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Glass Card Effect */
.glass-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition-medium);
}

.glass-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.gallery-card {
    cursor: pointer;
}

.gallery-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.gallery-card img {
    transition: transform 0.3s ease;
}

.gallery-card:hover img {
    transform: scale(1.05);
}

/* About Section */
.about-section {
    background: linear-gradient(180deg, var(--color-cream) 0%, rgba(74, 144, 164, 0.05) 100%);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-card h3 {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--color-navy);
    margin-bottom: var(--spacing-sm);
}

.callsign-badge {
    display: inline-block;
    background: var(--gradient-primary);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.about-text p {
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
    line-height: 1.8;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.highlight-item {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(74, 144, 164, 0.1);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--color-coral);
}

.highlight-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.highlight-text h4 {
    color: var(--color-navy);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.highlight-text p {
    color: var(--color-medium-gray);
    font-size: 0.95rem;
    margin: 0;
}

/* Inspiration Section */
.inspiration-section {
    background: linear-gradient(180deg, rgba(245, 241, 232, 0.9) 0%, rgba(245, 241, 232, 0.8) 100%), url('../images/szczecin.jpg') center/cover no-repeat;
    background-attachment: fixed;
    color: var(--color-navy);
}

/* Contact Section */
.contact-section {
    background: linear-gradient(135deg, rgba(30, 58, 95, 0.95) 0%, rgba(74, 144, 164, 0.85) 100%), url('../images/3Z0E-shack.jpg') center/cover no-repeat;
    background-attachment: fixed;
    color: var(--color-white);
}

.inspiration-card {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    position: relative;
    transition: transform 0.3s ease;
}

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

.quote-icon {
    font-size: 6rem;
    color: var(--color-light-blue);
    opacity: 0.3;
    position: absolute;
    top: -20px;
    left: 20px;
    font-family: Georgia, serif;
    line-height: 1;
}

.inspiration-quote {
    position: relative;
    z-index: 1;
}

.inspiration-quote p {
    font-size: 1.3rem;
    font-style: italic;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.inspiration-quote footer {
    text-align: right;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-navy);
}

/* Technical Section */
.technical-section {
    background: linear-gradient(135deg, rgba(245, 241, 232, 0.95) 0%, rgba(245, 241, 232, 0.85) 100%), url('../images/tech_yacht4.jpg') center/cover no-repeat;
    background-attachment: fixed;
}

.technical-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.tech-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-navy);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-coral);
}

.tech-card:hover {
    transform: translateY(-4px) scale(1.05);
}

.tech-list {
    list-style: none;
}

.tech-list li {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-light-gray);
}

.tech-list li:last-child {
    border-bottom: none;
}

.tech-label {
    font-weight: 500;
    color: var(--color-medium-gray);
}

.tech-value {
    color: var(--color-navy);
    font-weight: 500;
    text-align: right;
}

/* Gallery Section */
.gallery-section {
    background: linear-gradient(180deg, var(--color-cream) 0%, rgba(74, 144, 164, 0.05) 100%);
}

.gallery-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.filter-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-white);
    border: 2px solid var(--color-light-blue);
    color: var(--color-light-blue);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--color-light-blue);
    color: var(--color-white);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.gallery-item {
    transition: var(--transition-medium);
}

.gallery-item.hidden {
    display: none;
}

.gallery-card {
    height: 100%;
    display: flex;
    flex-direction: column;
    cursor: pointer;
}

.gallery-image-placeholder {
    aspect-ratio: 4/3;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
    position: relative;
}

.placeholder-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.gallery-image-placeholder p {
    font-weight: 600;
    text-align: center;
    padding: 0 var(--spacing-sm);
}

.gall.resource-card p {
    color: var(--color-charcoal);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
    flex-grow: 1;
}

.gallery-info h4 {
    color: var(--color-navy);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.gallery-info p {
    color: var(--color-medium-gray);
    font-size: 0.95rem;
}

/* Resources Section */
.resources-section {
    background: linear-gradient(135deg, rgba(30, 58, 95, 0.9) 0%, rgba(74, 144, 164, 0.8) 100%), url('../images/mapa_szczecin.jpg') center/cover no-repeat;
    background-attachment: fixed;
    color: var(--color-white);
}

.resources-section .section-title {
    color: var(--color-white);
}

.resources-section .section-description {
    color: rgba(255, 255, 255, 0.9);
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.resource-card {
    text-align: center;
    padding: var(--spacing-lg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.resource-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.resource-card h3 {
    font-family: var(--font-heading);
    color: var(--color-navy);
    margin-bottom: var(--spacing-sm);
}

.resource-card p {
    color: var(--color-medium-gray);
    margin-bottom: var(--spacing-md);
}

.contact-section .section-title {
    color: var(--color-white);
}

.contact-card {
    margin-bottom: var(--spacing-sm);
}

.contact-card h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--color-navy);
    margin-bottom: var(--spacing-xs);
}

.contact-simple-separator {
    border: 0;
    height: 4px;
    background: var(--color-coral);
    margin: var(--spacing-md) 0;
    border-radius: 2px;
    opacity: 0.8;
}

.contact-subtitle {
    color: var(--color-medium-gray);
    margin-bottom: var(--spacing-md);
}

/* Horizontal Contact Info Layout - REMOVED/REPLACED */
.contact-simple-container {
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.6);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.contact-simple-row {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    color: var(--color-charcoal);
}

.contact-simple-row strong {
    color: var(--color-navy);
}

.contact-label {
    font-weight: 600;
    color: var(--color-medium-gray);
    min-width: 140px;
}

.highlight-callsign {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-coral);
    background: rgba(255, 255, 255, 0.8);
    padding: 2px 10px;
    border-radius: var(--radius-sm);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    display: inline-block;
    margin-left: 5px;
}

.contact-club-info {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    font-style: italic;
    color: var(--color-navy);
}

/* Old tile styles commented out or can be left unused */
.contact-info-horizontal {
    display: none;
}

/* QSO Log Card - Full Width */
.qso-log-card {
    margin-top: var(--spacing-lg);
}

.qso-log-card h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--color-navy);
    margin-bottom: var(--spacing-xs);
}

.qso-log-card iframe {
    border-radius: var(--radius-sm);
    margin-top: var(--spacing-md);
}

/* Footer */
.footer {
    background: var(--color-navy);
    color: var(--color-cream);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

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

.footer-section h4 {
    font-family: var(--font-heading);
    margin-bottom: var(--spacing-sm);
    color: var(--color-coral);
}

.footer-section p {
    margin-bottom: var(--spacing-xs);
}

.footer-links {
    list-style: none;
}

.footer-links a {
    color: var(--color-cream);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-coral);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(245, 241, 232, 0.2);
}

.footer-bottom p {
    flex: 1;
    text-align: center;
}

.visit-counter {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.9rem;
    opacity: 0.8;
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
}

.counter-icon {
    font-size: 1.1rem;
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.lightbox.active {
    display: flex;
}

.lightbox-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 3rem;
    cursor: pointer;
    z-index: 2001;
    transition: var(--transition-fast);
}

.lightbox-close:hover {
    color: var(--color-coral);
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
}

.lightbox-caption {
    text-align: center;
    color: var(--color-white);
    margin-top: var(--spacing-md);
    font-size: 1.1rem;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    50% {
        transform: translateX(-50%) translateY(-10px);
    }
}

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }

    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(16px);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: var(--color-cream);
        width: 100%;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-md);
        transition: var(--transition-medium);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .technical-grid {
        grid-template-columns: 1fr;
    }

    .about-highlights {
        grid-template-columns: 1fr;
    }
}

/* Side Navigation */
.side-nav {
    position: fixed;
    top: 50%;
    left: 20px;
    transform: translateY(-50%);
    z-index: 1001;
    display: none;
    /* Hidden on mobile by default */
}

@media (min-width: 768px) {
    .side-nav {
        display: block;
    }
}

.side-nav ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.side-nav-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    position: relative;
    padding: 5px;
}

.side-nav-link .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: transparent;
    border: 2px solid var(--color-navy);
    transition: all 0.3s ease;
}

/* Active and Hover states */
.side-nav-link.active .dot,
.side-nav-link:hover .dot {
    background-color: var(--color-coral);
    border-color: var(--color-coral);
    transform: scale(1.2);
}

.side-nav-link .label {
    position: absolute;
    left: 30px;
    background-color: var(--color-navy);
    color: var(--color-white);
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.85rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-10px);
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.side-nav-link:hover .label {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

/* Connector line effect (optional - subtle vertical line) */
.side-nav::before {
    content: '';
    position: absolute;
    top: 10px;
    bottom: 10px;
    left: 11px;
    /* Center with dots (5px padding + 6px half-width) */
    width: 1px;
    background-color: rgba(30, 58, 95, 0.2);
    z-index: -1;
}