/* 
   TVT Tennis Club - Modern Stylesheet
   Theme: Vibrant Green, Dark Mode accents, Glassmorphism, Clean Typography
*/

:root {
    /* Color Palette */
    --color-primary: #a1e04a;
    /* Vibrant tennis ball green */
    --color-primary-dark: #8bcc2c;
    --color-secondary: #0a2510;
    /* Deep dark green */

    --color-bg: #f8faf9;
    --color-surface: #ffffff;
    --color-surface-dim: #eef2f0;

    --color-text-main: #1a201c;
    --color-text-muted: #5e6b62;
    --color-text-light: #ffffff;

    --color-dark-bg: #0d120f;
    --color-dark-surface: #141c17;

    /* Typography */
    --font-main: 'Outfit', sans-serif;

    /* Spacing & Sizes */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-pill: 999px;

    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

    --container-width: 1200px;
    --nav-height: 80px;
}

/* Reset & Scaffolding */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Utility Classes */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

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

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

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

.text-white {
    color: var(--color-text-light);
}

.text-primary {
    color: var(--color-primary);
}

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

.center {
    text-align: center;
}

.mt-4 {
    margin-top: 2rem;
}

/* Buttons */
.btn-primary,
.btn-primary-sm,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    border-radius: var(--radius-pill);
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    letter-spacing: 0.5px;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-secondary);
    padding: 1rem 2rem;
    font-size: 1.125rem;
    box-shadow: 0 4px 14px rgba(161, 224, 74, 0.4);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(161, 224, 74, 0.5);
}

.btn-primary-sm {
    background-color: var(--color-primary);
    color: var(--color-secondary);
    padding: 0.6rem 1.4rem;
    font-size: 0.95rem;
}

.btn-primary-sm:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text-light);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 1rem 2rem;
    font-size: 1.125rem;
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--color-text-light);
    transform: translateY(-2px);
}

/* Typography elements */
.section-title {
    font-size: 2.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-bottom: 3rem;
    max-width: 600px;
}

.large-text {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.8);
}

/* Sections */
.section {
    padding: 6rem 0;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    z-index: 1000;
    transition: all var(--transition-normal);
    background-color: transparent;
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
}

.navbar.scrolled .nav-links a:not(.btn-primary-sm) {
    color: var(--color-text-main);
}

.navbar.scrolled .brand {
    color: var(--color-text-main);
}

.navbar.scrolled .mobile-toggle .bar {
    background-color: var(--color-text-main);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--color-text-light);
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
}

.brand-logo {
    height: 64px;
    width: auto;
    display: block;
}

.brand span {
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-links a:not(.btn-primary-sm) {
    color: var(--color-text-light);
    font-weight: 500;
    font-size: 1rem;
    position: relative;
}

.nav-links a:not(.btn-primary-sm)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-normal);
}

.nav-links a:not(.btn-primary-sm):hover::after {
    width: 100%;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.mobile-toggle .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: all var(--transition-fast);
    background-color: var(--color-text-light);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 2rem;
    text-align: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Will be overridden in HTML with actual image */
    background: url('assets/background.jpg') no-repeat center center/cover;
    z-index: -2;
    transform: scale(1.05);
    /* Slight zoom for initial effect */
    animation: slowZoom 20s infinite alternate linear;
}

@keyframes slowZoom {
    0% {
        transform: scale(1.05);
    }

    100% {
        transform: scale(1.1);
    }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(10, 37, 16, 0.3) 0%, rgba(10, 37, 16, 0.8) 100%);
    z-index: -1;
}

.hero-content {
    max-width: 800px;
    color: var(--color-text-light);
    z-index: 1;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s forwards 0.3s;
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 300;
    margin-bottom: 2.5rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s forwards 0.5s;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s forwards 0.7s;
}

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

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.mouse {
    width: 24px;
    height: 36px;
    border: 2px solid rgba(255, 255, 255, 0.6);
    border-radius: 12px;
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 6px;
    background-color: var(--color-primary);
    border-radius: 2px;
    animation: scroll 1.5s infinite;
}

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

    100% {
        transform: translate(-50%, 15px);
        opacity: 0;
    }
}

/* News Section */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.news-card {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.news-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
}

.news-img {
    height: 200px;
    background-size: cover;
    background-position: center;
}

.news-content {
    padding: 2rem;
}

.news-date {
    display: inline-block;
    font-size: 0.875rem;
    color: var(--color-primary-dark);
    font-weight: 600;
    margin-bottom: 0.5rem;
    background-color: rgba(161, 224, 74, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-pill);
}

.news-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-text-main);
}

.news-excerpt {
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.news-link {
    font-weight: 600;
    color: var(--color-primary-dark);
    display: inline-flex;
    align-items: center;
}

.news-link:hover {
    color: var(--color-secondary);
}

/* Teams Section */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 2rem;
}

.team-card {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.team-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.08);
}

.team-img {
    height: 220px;
    background-size: cover;
    background-position: center;
    background-color: var(--color-surface-dim);
}

.team-content {
    padding: 1.5rem;
    text-align: center;
}

.team-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-main);
}

/* Courts / Information Section */
.court-section-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.feature-list li {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.feature-list .icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background-color: var(--color-primary);
    color: var(--color-secondary);
    border-radius: 50%;
    font-size: 0.8rem;
    font-weight: bold;
}

.glass-panel {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    padding: 1rem;
}

.court-image-wrapper {
    width: 100%;
    height: 400px;
    border-radius: var(--radius-md);
    background: url('assets/background.jpg') no-repeat center center/cover;
    overflow: hidden;
    position: relative;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

/* Gallery Section */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.gallery-item {
    height: 250px;
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
    background-color: var(--color-surface-dim);
    cursor: pointer;
    background-size: cover;
    background-position: center;
}

.gallery-item.placeholder {
    background: linear-gradient(45deg, var(--color-surface-dim), var(--color-surface));
}

.gallery-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background-color: rgba(10, 37, 16, 0);
    transition: background-color var(--transition-normal);
    z-index: 1;
}

.gallery-item:hover::before {
    background-color: rgba(10, 37, 16, 0.4);
}

.gallery-item::after {
    /* content: '+'; */
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.5);
    font-size: 3rem;
    color: white;
    opacity: 0;
    transition: all var(--transition-normal);
    z-index: 2;
}

.gallery-item:hover::after {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

/* Sponsoren Section */
.sponsors-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    padding: 2rem 0;
}

.sponsor-item {
    flex: 0 1 200px;
    height: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
    filter: grayscale(100%);
    opacity: 0.6;
    transition: all var(--transition-normal);
    font-weight: 600;
    color: var(--color-text-muted);
    background-color: var(--color-surface-dim);
    border-radius: var(--radius-sm);
}

.sponsor-item:hover {
    filter: grayscale(0%);
    opacity: 1;
    transform: scale(1.05);
    background-color: var(--color-surface);
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.sponsor-item img {
    max-height: 80%;
    max-width: 80%;
    object-fit: contain;
}

/* Footer */
.footer {
    background-color: var(--color-dark-bg);
    color: rgba(255, 255, 255, 0.7);
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-text-light);
    margin-bottom: 1rem;
}

.footer-brand span {
    color: var(--color-primary);
}

.footer-links h4,
.footer-contact h4 {
    color: var(--color-text-light);
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.footer-links ul li {
    margin-bottom: 0.75rem;
}

.footer-links a:hover {
    color: var(--color-primary);
    padding-left: 5px;
}

.footer-contact p {
    margin-bottom: 0.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.875rem;
}

/* Animations */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-up.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 992px) {
    .court-section-container {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 3.5rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: rgba(20, 28, 23, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        transition: right var(--transition-normal);
        z-index: 1000;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links a:not(.btn-primary-sm) {
        font-size: 1.5rem;
    }

    .mobile-toggle {
        display: block;
    }

    .mobile-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .mobile-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .mobile-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .navbar.scrolled .mobile-toggle.active .bar {
        background-color: var(--color-text-light);
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-actions {
        flex-direction: column;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}