/* Modern Professional CSS with Advanced Animations */
:root {
    --primary-gradient: linear-gradient(135deg, #8a2be2 0%, #9932cc 100%);
    --secondary-gradient: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    --accent-gradient: linear-gradient(135deg, #6c757d 0%, #495057 100%);
    --dark-gradient: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --text-primary: #2c3e50;
    --text-secondary: #6c757d;
    --shadow-light: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-medium: 0 8px 30px rgba(0, 0, 0, 0.12);
    --shadow-heavy: 0 15px 40px rgba(0, 0, 0, 0.15);
    --border-radius: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--primary-gradient);
    background-attachment: fixed;
    min-height: 100vh;
    color: var(--text-primary);
    overflow-x: hidden;
    position: relative;
    line-height: 1.6;
}


/* Header Styles */
header {
    text-align: center;
    padding: 60px 20px 40px;
    position: relative;
    z-index: 10;
}

header h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    animation: titleGlow 3s ease-in-out infinite alternate;
}

@keyframes titleGlow {
    0% { filter: drop-shadow(0 0 20px rgba(255, 255, 255, 0.3)); }
    100% { filter: drop-shadow(0 0 30px rgba(255, 255, 255, 0.5)); }
}

header p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 30px;
    font-weight: 300;
    animation: fadeInUp 1s ease-out 0.5s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Admin Panel Button */
.admin-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    color: white;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: var(--shadow-light);
    animation: fadeInUp 1s ease-out 0.7s both;
}

.admin-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
    background: rgba(255, 255, 255, 0.2);
}

.admin-btn i {
    font-size: 1.2rem;
}

/* Controls Section */
.controls {
    max-width: 1200px;
    margin: 0 auto 40px;
    padding: 30px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    animation: slideInDown 1s ease-out 0.3s both;
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#searchInput {
    width: 100%;
    max-width: 400px;
    padding: 18px 25px;
    border: 2px solid transparent;
    border-radius: 50px;
    font-size: 1.1rem;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    transition: var(--transition);
    box-shadow: var(--shadow-light);
    margin-bottom: 25px;
}

#searchInput:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.8);
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-medium);
    background: rgba(255, 255, 255, 0.95);
}

#searchInput::placeholder {
    color: var(--text-secondary);
    font-weight: 400;
}

/* Filter Buttons */
.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.filter-btn {
    padding: 12px 25px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    color: white;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.filter-btn:hover::before {
    left: 100%;
}

.filter-btn:hover {
    transform: translateY(-3px) scale(1.05);
    border-color: rgba(255, 255, 255, 0.8);
    box-shadow: var(--shadow-light);
    background: rgba(255, 255, 255, 0.2);
}

.filter-btn.active {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.8);
    box-shadow: var(--shadow-medium);
}

/* Brand Container */
.brand-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    animation: fadeInUp 1s ease-out 1s both;
}

/* Brand Box */
.brand-box {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 30px 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-light);
    animation: brandBoxAppear 0.6s ease-out both;
}

.brand-box:nth-child(1) { animation-delay: 0.1s; }
.brand-box:nth-child(2) { animation-delay: 0.2s; }
.brand-box:nth-child(3) { animation-delay: 0.3s; }
.brand-box:nth-child(4) { animation-delay: 0.4s; }
.brand-box:nth-child(5) { animation-delay: 0.5s; }
.brand-box:nth-child(6) { animation-delay: 0.6s; }

@keyframes brandBoxAppear {
    from {
        opacity: 0;
        transform: translateY(50px) scale(0.8);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.brand-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    opacity: 0;
    transition: var(--transition);
}

.brand-box:hover::before {
    opacity: 1;
}

.brand-box:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: var(--shadow-heavy);
    border-color: rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.15);
}

.brand-logo {
    font-size: 3.5rem;
    margin-bottom: 20px;
    transition: var(--transition);
    position: relative;
    z-index: 2;
}

/* Rastgele renkler için CSS sınıfları */
.brand-logo.color-1 { color: #FF6B6B; text-shadow: 0 0 20px rgba(255, 107, 107, 0.5); } /* Kırmızı */
.brand-logo.color-2 { color: #4ECDC4; text-shadow: 0 0 20px rgba(78, 205, 196, 0.5); } /* Turkuaz */
.brand-logo.color-3 { color: #45B7D1; text-shadow: 0 0 20px rgba(69, 183, 209, 0.5); } /* Mavi */
.brand-logo.color-4 { color: #96CEB4; text-shadow: 0 0 20px rgba(150, 206, 180, 0.5); } /* Yeşil */
.brand-logo.color-5 { color: #FFEAA7; text-shadow: 0 0 20px rgba(255, 234, 167, 0.5); } /* Sarı */
.brand-logo.color-6 { color: #DDA0DD; text-shadow: 0 0 20px rgba(221, 160, 221, 0.5); } /* Mor */
.brand-logo.color-7 { color: #FFB347; text-shadow: 0 0 20px rgba(255, 179, 71, 0.5); } /* Turuncu */
.brand-logo.color-8 { color: #87CEEB; text-shadow: 0 0 20px rgba(135, 206, 235, 0.5); } /* Açık Mavi */
.brand-logo.color-9 { color: #F0E68C; text-shadow: 0 0 20px rgba(240, 230, 140, 0.5); } /* Açık Sarı */
.brand-logo.color-10 { color: #FF69B4; text-shadow: 0 0 20px rgba(255, 105, 180, 0.5); } /* Pembe */

/* Hover efektleri için rastgele renkler */
.brand-box:hover .brand-logo.color-1 { color: #FF5252; filter: drop-shadow(0 0 25px rgba(255, 82, 82, 0.8)); }
.brand-box:hover .brand-logo.color-2 { color: #26A69A; filter: drop-shadow(0 0 25px rgba(38, 166, 154, 0.8)); }
.brand-box:hover .brand-logo.color-3 { color: #2196F3; filter: drop-shadow(0 0 25px rgba(33, 150, 243, 0.8)); }
.brand-box:hover .brand-logo.color-4 { color: #66BB6A; filter: drop-shadow(0 0 25px rgba(102, 187, 106, 0.8)); }
.brand-box:hover .brand-logo.color-5 { color: #FFEB3B; filter: drop-shadow(0 0 25px rgba(255, 235, 59, 0.8)); }
.brand-box:hover .brand-logo.color-6 { color: #BA68C8; filter: drop-shadow(0 0 25px rgba(186, 104, 200, 0.8)); }
.brand-box:hover .brand-logo.color-7 { color: #FF9800; filter: drop-shadow(0 0 25px rgba(255, 152, 0, 0.8)); }
.brand-box:hover .brand-logo.color-8 { color: #42A5F5; filter: drop-shadow(0 0 25px rgba(66, 165, 245, 0.8)); }
.brand-box:hover .brand-logo.color-9 { color: #FFC107; filter: drop-shadow(0 0 25px rgba(255, 193, 7, 0.8)); }
.brand-box:hover .brand-logo.color-10 { color: #E91E63; filter: drop-shadow(0 0 25px rgba(233, 30, 99, 0.8)); }

.brand-box:hover .brand-logo {
    transform: scale(1.2) rotate(10deg);
}

.brand-name {
    font-size: 1.4rem;
    font-weight: 700;
    color: white;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    transition: var(--transition);
    position: relative;
    z-index: 2;
}

.brand-box:hover .brand-name {
    transform: translateY(-2px);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    animation: modalFadeIn 0.3s ease-out;
    align-items: center;
    justify-content: center;
}

@keyframes modalFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--glass-bg);
    backdrop-filter: blur(30px);
    border: 1px solid var(--glass-border);
    margin: 5% auto;
    padding: 40px;
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 500px;
    box-shadow: var(--shadow-heavy);
    animation: modalSlideIn 0.4s ease-out;
    position: relative;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.close-button {
    position: absolute;
    top: 20px;
    right: 25px;
    font-size: 2rem;
    font-weight: bold;
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    transition: var(--transition);
    z-index: 10;
}

.close-button:hover {
    color: white;
    transform: scale(1.1);
}

.modal-content h2 {
    color: white;
    font-size: 2rem;
    margin-bottom: 20px;
    text-align: center;
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.modal-content p {
    color: rgba(255, 255, 255, 0.9);
    text-align: center;
    margin-bottom: 30px;
    font-size: 1.1rem;
}

.modal-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.contact-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: var(--shadow-light);
    position: relative;
    overflow: hidden;
}

.contact-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.contact-button:hover::before {
    left: 100%;
}

.contact-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

.contact-button.telegram {
    background: linear-gradient(135deg, #0088cc 0%, #00a8ff 100%);
    color: white;
}

.contact-button.whatsapp {
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    color: white;
}

/* Loading Animation */
.loading {
    text-align: center;
    padding: 60px 20px;
    color: rgba(255, 255, 255, 0.8);
}

.loading i {
    font-size: 3rem;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
    display: block;
}

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

.loading p {
    font-size: 1.2rem;
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 768px) {
    .brand-container {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 20px;
        padding: 0 15px;
    }
    
    .brand-box {
        padding: 25px 15px;
    }
    
    .brand-logo {
        font-size: 3rem;
    }
    
    .brand-name {
        font-size: 1.2rem;
    }
    
    .filter-buttons {
        gap: 10px;
    }
    
    .filter-btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .modal-content {
        margin: 10% auto;
        padding: 30px 20px;
        width: 95%;
    }
    
    .modal-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-button {
        width: 100%;
        max-width: 250px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    header {
        padding: 40px 15px 30px;
    }
    
    header h1 {
        font-size: 2.5rem;
    }
    
    .controls {
        padding: 20px 15px;
        margin: 0 15px 30px;
    }
    
    .brand-container {
        grid-template-columns: 1fr;
        gap: 15px;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

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

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* Focus States for Accessibility */
.filter-btn:focus,
.contact-button:focus,
.admin-btn:focus {
    outline: 2px solid rgba(255, 255, 255, 0.6);
    outline-offset: 2px;
}

#searchInput:focus {
    outline: 2px solid rgba(255, 255, 255, 0.6);
    outline-offset: 2px;
}