/**
 * Batuhan Berk Spor Kulübü - Ana Stil Dosyası
 * Tema: Kırmızı (#dc0000), Siyah (#000000), Beyaz (#ffffff)
 */

/* Reset ve Temel Stiller */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-red: #dc0000;
    --dark-red: #a00000;
    --black: #000000;
    --dark-gray: #1a1a1a;
    --light-gray: #f5f5f5;
    --white: #ffffff;
    --text-dark: #333333;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: linear-gradient(135deg, var(--black) 0%, var(--dark-gray) 100%);
    color: var(--white);
    padding: 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-top {
    background: var(--primary-red);
    padding: 10px 0;
    font-size: 14px;
}

.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.social-links a {
    color: var(--white);
    margin-left: 15px;
    font-size: 18px;
    transition: transform 0.3s;
    display: inline-block;
}

.social-links a:hover {
    transform: scale(1.2);
}

.header-main {
    padding: 20px 0;
}

.header-main .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 28px;
    font-weight: bold;
}

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

/* Navigation */
nav ul {
    list-style: none;
    display: flex;
    gap: 30px;
}

nav a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    padding: 8px 15px;
    border-radius: 5px;
}

nav a:hover,
nav a.active {
    color: var(--primary-red);
    background: rgba(220, 0, 0, 0.1);
}

/* Admin Button */
nav a[href*="admin"] {
    background: var(--primary-red) !important;
    color: var(--white) !important;
    box-shadow: 0 2px 8px rgba(220, 0, 0, 0.3);
}

nav a[href*="admin"]:hover {
    background: var(--dark-red) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(220, 0, 0, 0.5);
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), 
                url('../images/hero-bg.jpg') center/cover;
    color: var(--white);
    padding: 80px 0;
    position: relative;
}

.hero-overlay {
    width: 100%;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 40px;
    align-items: center;
}

.hero-left {
    text-align: left;
}

.hero-left h2 {
    font-size: 48px;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-left p {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

/* Son Haberler Kutusu */
.hero-news {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    animation: slideInRight 0.6s ease-out;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.news-header {
    background: var(--primary-red);
    color: white;
    padding: 15px 20px;
    font-weight: bold;
    font-size: 18px;
    border-bottom: 3px solid var(--dark-red);
}

.news-list {
    max-height: 350px;
    overflow-y: auto;
}

.news-item {
    padding: 15px 20px;
    border-bottom: 1px solid #eee;
    transition: all 0.3s;
    cursor: pointer;
}

.news-item:hover {
    background: #f8f8f8;
    border-left: 4px solid var(--primary-red);
    padding-left: 16px;
}

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

.news-date {
    font-size: 12px;
    color: #999;
    margin-bottom: 5px;
}

.news-title {
    color: #333;
    font-weight: 500;
    font-size: 14px;
    line-height: 1.4;
}

/* Scrollbar Styling */
.news-list::-webkit-scrollbar {
    width: 6px;
}

.news-list::-webkit-scrollbar-track {
    background: #f1f1f1;
}

.news-list::-webkit-scrollbar-thumb {
    background: var(--primary-red);
    border-radius: 3px;
}

.news-list::-webkit-scrollbar-thumb:hover {
    background: var(--dark-red);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .hero-left {
        text-align: center;
    }
    
    .hero-left h2 {
        font-size: 32px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-news {
        max-width: 100%;
    }
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

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

.btn-primary:hover {
    background: var(--dark-red);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(220, 0, 0, 0.4);
}

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

.btn-secondary:hover {
    background: var(--dark-gray);
}

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

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

/* Sections */
section {
    padding: 60px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 36px;
    color: var(--black);
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--primary-red);
    margin: 10px auto;
}

/* Duyurular */
.announcements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.announcement-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.announcement-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(220, 0, 0, 0.2);
}

.announcement-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.announcement-content {
    padding: 20px;
}

.announcement-content h3 {
    color: var(--black);
    margin-bottom: 10px;
    font-size: 22px;
}

.announcement-date {
    color: var(--primary-red);
    font-size: 14px;
    margin-bottom: 10px;
}

.announcement-content p {
    color: var(--text-dark);
    line-height: 1.6;
}

/* Galeri */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    cursor: pointer;
    height: 250px;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: var(--white);
    padding: 20px;
    transform: translateY(100%);
    transition: transform 0.3s;
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

/* Form Stilleri */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    color: var(--black);
}

.form-control {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-red);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

/* Alert Messages */
.alert {
    padding: 15px 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.alert-success {
    background: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}

.alert-error {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

.alert-info {
    background: #d1ecf1;
    border: 1px solid #bee5eb;
    color: #0c5460;
}

/* Footer */
footer {
    background: var(--black);
    color: var(--white);
    padding: 40px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h3 {
    color: var(--primary-red);
    margin-bottom: 15px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section a {
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: var(--primary-red);
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 20px;
    text-align: center;
}

/* About Page */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.about-text h3 {
    color: var(--primary-red);
    margin-bottom: 15px;
}

.about-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}

/* Responsive */
@media (max-width: 768px) {
    nav ul {
        flex-direction: column;
        gap: 10px;
    }
    
    .hero h2 {
        font-size: 32px;
    }
    
    .announcements-grid,
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* Loading Spinner */
.spinner {
    border: 3px solid var(--light-gray);
    border-top: 3px solid var(--primary-red);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}