/* Custom CSS for Toplantı Yönetim Sistemi */

:root {
    /* Ana Renkler - Turuncu-Altın Paleti */
    --primary-color: #ff6b35;        /* Sıcak turuncu */
    --primary-dark: #e55a2b;         /* Koyu turuncu */
    --primary-light: #ff8c69;        /* Açık turuncu */
    --secondary-color: #2c3e50;      /* Koyu gri-mavi */
    --accent-color: #f39c12;         /* Altın sarısı */
    --accent-light: #f7dc6f;         /* Açık altın */
    
    /* Durum Renkleri */
    --success-color: #27ae60;        /* Yeşil */
    --success-light: #2ecc71;        /* Açık yeşil */
    --danger-color: #e74c3c;         /* Kırmızı */
    --warning-color: #f1c40f;        /* Sarı */
    --info-color: #3498db;           /* Mavi */
    
    /* Nötr Renkler */
    --light-color: #f8f9fa;
    --dark-color: #2c3e50;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    
    /* Gradientler */
    --gradient-primary: linear-gradient(135deg, #ff6b35 0%, #f39c12 100%);
    --gradient-secondary: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    --gradient-hero: linear-gradient(135deg, #ff6b35 0%, #f39c12 50%, #e67e22 100%);
    --gradient-card: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
    
    /* Gölgeler */
    --shadow: 0 10px 30px rgba(255, 107, 53, 0.15);
    --shadow-hover: 0 15px 40px rgba(255, 107, 53, 0.25);
    --shadow-dark: 0 10px 30px rgba(44, 62, 80, 0.2);
    
    /* Logo Filtreleri */
    --logo-filter: brightness(1) saturate(1.2) contrast(1.1);
    --logo-filter-hover: brightness(1.1) saturate(1.3) contrast(1.2) drop-shadow(0 0 15px rgba(255, 107, 53, 0.4));
    --logo-filter-dark: brightness(1.1) saturate(1.3) contrast(1.2);
    --logo-filter-dark-hover: brightness(1.2) saturate(1.4) contrast(1.3) drop-shadow(0 0 15px rgba(255, 107, 53, 0.5));
    --logo-filter-white: brightness(0) invert(1);
    --logo-filter-white-hover: brightness(0) invert(1) drop-shadow(0 0 10px rgba(255, 255, 255, 0.3));
}

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

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

/* Logo Styles */
.logo-img {
    height: 90px;
    width: auto;
    filter: none;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    margin-right: 20px;
    cursor: pointer;
}

.logo-img:hover {
    filter: brightness(1.1) saturate(1.2);
    transform: scale(1.05);
}

.hero-logo {
    height: 300px;
    width: auto;
    filter: none;
    animation: float 6s ease-in-out infinite, glow 3s ease-in-out infinite alternate;
    border-radius: 30px;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.98), rgba(248, 249, 250, 0.95));
    padding: 40px;
    backdrop-filter: blur(20px);
    border: 4px solid rgba(255, 255, 255, 0.9);
    box-shadow: 
        0 25px 80px rgba(0, 0, 0, 0.4),
        inset 0 2px 0 rgba(255, 255, 255, 0.95);
}

.hero-logo:hover {
    filter: brightness(1.05) saturate(1.1);
    transform: scale(1.05);
}



/* Navigation Styles */
.navbar {
    backdrop-filter: blur(15px);
    background: var(--gradient-secondary) !important;
    box-shadow: 0 4px 30px rgba(44, 62, 80, 0.3);
    transition: all 0.3s ease;
    border-bottom: 2px solid rgba(255, 107, 53, 0.3);
}

.navbar-brand {
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.navbar-brand:hover {
    transform: scale(1.05);
}

.nav-link {
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #fff !important;
    transform: translateY(-2px);
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 50%;
    background-color: #fff;
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

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

/* Hero Section */
.hero-section {
    background: var(--gradient-hero);
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

.hero-section::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 1000 1000"><polygon fill="rgba(255,255,255,0.1)" points="0,1000 1000,0 1000,1000"/></svg>');
    background-size: cover;
}

.hero-section .container {
    position: relative;
    z-index: 2;
}

/* Hero Guide */
.hero-guide {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 15px 20px;
    transition: all 0.3s ease;
}

.hero-guide:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.hero-guide p {
    font-size: 1.1rem;
    line-height: 1.6;
    font-weight: 400;
}

.join-highlight {
    color: #4ade80 !important;
    font-weight: 700;
    text-shadow: 0 0 10px rgba(74, 222, 128, 0.3);
    background: rgba(74, 222, 128, 0.1);
    padding: 2px 8px;
    border-radius: 6px;
    border: 1px solid rgba(74, 222, 128, 0.3);
}

.hero-image {
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes glow {
    0% { 
        box-shadow: 
            0 20px 60px rgba(0, 0, 0, 0.3),
            inset 0 1px 0 rgba(255, 255, 255, 0.3),
            0 0 30px rgba(255, 107, 53, 0.3);
    }
    100% { 
        box-shadow: 
            0 20px 60px rgba(0, 0, 0, 0.3),
            inset 0 1px 0 rgba(255, 255, 255, 0.3),
            0 0 50px rgba(255, 107, 53, 0.6);
    }
}

/* Button Styles */
.btn {
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    border: none;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.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;
}

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

.btn-primary {
    background: var(--gradient-primary);
    border: none;
    color: white;
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.3);
}

.btn-primary:hover {
    background: var(--gradient-primary);
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.4);
    color: white;
}

.btn-outline-light:hover {
    background: var(--gradient-primary);
    border-color: var(--primary-color);
    color: white;
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.4);
}

.btn:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: var(--shadow-hover);
}

.btn-lg {
    padding: 12px 30px;
    font-size: 1.1rem;
}

/* Card Styles */
.card {
    border-radius: 25px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: none;
    overflow: hidden;
    background: var(--gradient-card);
    box-shadow: var(--shadow);
}

.card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: var(--shadow-hover);
}

.card-header {
    border-radius: 25px 25px 0 0 !important;
    border: none;
    background: var(--gradient-primary) !important;
    box-shadow: 0 4px 20px rgba(255, 107, 53, 0.2);
}

/* Form Styles */
.form-control, .form-select {
    border-radius: 20px;
    border: 2px solid #e9ecef;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    padding: 15px 25px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.3rem rgba(255, 107, 53, 0.25), 0 8px 25px rgba(255, 107, 53, 0.15);
    transform: translateY(-3px) scale(1.02);
    background: rgba(255, 255, 255, 1);
}

.form-label {
    color: var(--dark-color);
    margin-bottom: 8px;
}

/* Toplantı Card Styles */
.toplanti-card {
    background: var(--gradient-card);
    border-radius: 25px;
    padding: 2.5rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border-left: 6px solid var(--primary-color);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Farklı toplantı kartı renkleri - Sınıf seçicileri ile */
.toplanti-card-1 {
    background: linear-gradient(145deg, #fff5f0, #ffe8d6);
    border-left-color: #ff6b35;
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.15);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
}

.toplanti-card-1:hover {
    background: linear-gradient(145deg, #fff0e6, #ffdcc7);
    box-shadow: 0 15px 40px rgba(255, 107, 53, 0.25);
    transform: translateY(-5px);
}

.toplanti-card-1.selected {
    border: 3px solid #ff6b35;
    box-shadow: 0 20px 50px rgba(255, 107, 53, 0.4);
    transform: translateY(-8px);
}

.toplanti-card-2 {
    background: linear-gradient(145deg, #f0f8ff, #e6f3ff);
    border-left-color: #3498db;
    box-shadow: 0 10px 30px rgba(52, 152, 219, 0.15);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
}

.toplanti-card-2:hover {
    background: linear-gradient(145deg, #e6f3ff, #d1ecf1);
    box-shadow: 0 15px 40px rgba(52, 152, 219, 0.25);
    transform: translateY(-5px);
}

.toplanti-card-2.selected {
    border: 3px solid #3498db;
    box-shadow: 0 20px 50px rgba(52, 152, 219, 0.4);
    transform: translateY(-8px);
}

.toplanti-card-3 {
    background: linear-gradient(145deg, #f0fff4, #e8f5e8);
    border-left-color: #27ae60;
    box-shadow: 0 10px 30px rgba(39, 174, 96, 0.15);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
}

.toplanti-card-3:hover {
    background: linear-gradient(145deg, #e8f5e8, #d5f4e6);
    box-shadow: 0 15px 40px rgba(39, 174, 96, 0.25);
    transform: translateY(-5px);
}

.toplanti-card-3.selected {
    border: 3px solid #27ae60;
    box-shadow: 0 20px 50px rgba(39, 174, 96, 0.4);
    transform: translateY(-8px);
}

.toplanti-card-4 {
    background: linear-gradient(145deg, #fef7ff, #f3e5f5);
    border-left-color: #9b59b6;
    box-shadow: 0 10px 30px rgba(155, 89, 182, 0.15);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
}

.toplanti-card-4:hover {
    background: linear-gradient(145deg, #f3e5f5, #e1bee7);
    box-shadow: 0 15px 40px rgba(155, 89, 182, 0.25);
    transform: translateY(-5px);
}

.toplanti-card-4.selected {
    border: 3px solid #9b59b6;
    box-shadow: 0 20px 50px rgba(155, 89, 182, 0.4);
    transform: translateY(-8px);
}

.toplanti-card-5 {
    background: linear-gradient(145deg, #fff3e0, #ffe0b2);
    border-left-color: #ff9800;
    box-shadow: 0 10px 30px rgba(255, 152, 0, 0.15);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
}

.toplanti-card-5:hover {
    background: linear-gradient(145deg, #ffe0b2, #ffcc80);
    box-shadow: 0 15px 40px rgba(255, 152, 0, 0.25);
    transform: translateY(-5px);
}

.toplanti-card-5.selected {
    border: 3px solid #ff9800;
    box-shadow: 0 20px 50px rgba(255, 152, 0, 0.4);
    transform: translateY(-8px);
}

.toplanti-card-6 {
    background: linear-gradient(145deg, #fce4ec, #f8bbd9);
    border-left-color: #e91e63;
    box-shadow: 0 10px 30px rgba(233, 30, 99, 0.15);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
}

.toplanti-card-6:hover {
    background: linear-gradient(145deg, #f8bbd9, #f48fb1);
    box-shadow: 0 15px 40px rgba(233, 30, 99, 0.25);
    transform: translateY(-5px);
}

.toplanti-card-6.selected {
    border: 3px solid #e91e63;
    box-shadow: 0 20px 50px rgba(233, 30, 99, 0.4);
    transform: translateY(-8px);
}

/* Katıl butonu stilleri */
.katil-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    background: linear-gradient(135deg, #28a745, #20c997);
    color: white;
    border: none;
    border-radius: 25px;
    padding: 8px 16px;
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(-10px);
    z-index: 10;
}

.toplanti-card:hover .katil-btn {
    opacity: 1;
    transform: translateY(0);
}

.katil-btn:hover {
    background: linear-gradient(135deg, #218838, #1ea085);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.4);
}

.katil-btn:active {
    transform: translateY(0);
}

/* Seçilen kart için buton */
.toplanti-card.selected .katil-btn {
    opacity: 1;
    transform: translateY(0);
    background: linear-gradient(135deg, #dc3545, #fd7e14);
}

.toplanti-card.selected .katil-btn:hover {
    background: linear-gradient(135deg, #c82333, #e55a00);
}

.toplanti-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: var(--gradient-primary);
    box-shadow: 0 2px 10px rgba(255, 107, 53, 0.3);
}

.toplanti-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-hover);
    border-left-color: var(--accent-color);
}

.toplanti-header {
    display: flex;
    justify-content: between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.toplanti-kodu {
    background: var(--gradient-primary);
    color: white;
    padding: 10px 20px;
    border-radius: 30px;
    font-weight: bold;
    font-size: 0.9rem;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

/* Her kart için farklı toplantı kodu renkleri */
.toplanti-card-1 .toplanti-kodu {
    background: linear-gradient(135deg, #ff6b35, #e55a2b);
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
}

.toplanti-card-2 .toplanti-kodu {
    background: linear-gradient(135deg, #3498db, #2980b9);
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.4);
}

.toplanti-card-3 .toplanti-kodu {
    background: linear-gradient(135deg, #27ae60, #229954);
    box-shadow: 0 4px 15px rgba(39, 174, 96, 0.4);
}

.toplanti-card-4 .toplanti-kodu {
    background: linear-gradient(135deg, #9b59b6, #8e44ad);
    box-shadow: 0 4px 15px rgba(155, 89, 182, 0.4);
}

.toplanti-card-5 .toplanti-kodu {
    background: linear-gradient(135deg, #ff9800, #f57c00);
    box-shadow: 0 4px 15px rgba(255, 152, 0, 0.4);
}

.toplanti-card-6 .toplanti-kodu {
    background: linear-gradient(135deg, #e91e63, #c2185b);
    box-shadow: 0 4px 15px rgba(233, 30, 99, 0.4);
}

.toplanti-tarih {
    background: rgba(255, 255, 255, 0.8);
    color: var(--text-dark);
    padding: 10px 20px;
    border-radius: 30px;
    font-size: 0.9rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
}

.toplanti-baslik {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--dark-color);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.toplanti-detay {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    font-weight: 500;
}

.toplanti-detay i {
    width: 20px;
    margin-right: 10px;
    color: var(--primary-color);
}

/* Her kart için farklı ikon renkleri */
.toplanti-card-1 .toplanti-detay i {
    color: #ff6b35;
}

.toplanti-card-2 .toplanti-detay i {
    color: #3498db;
}

.toplanti-card-3 .toplanti-detay i {
    color: #27ae60;
}

.toplanti-card-4 .toplanti-detay i {
    color: #9b59b6;
}

.toplanti-card-5 .toplanti-detay i {
    color: #ff9800;
}

.toplanti-card-6 .toplanti-detay i {
    color: #e91e63;
}

/* Loading Spinner */
.spinner-border {
    width: 3rem;
    height: 3rem;
}

/* Animations */
.fade-in {
    animation: fadeIn 0.6s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

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

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section h1 {
        font-size: 2.5rem;
    }
    
    .hero-section .lead {
        font-size: 1.1rem;
    }
    
    .btn-lg {
        padding: 10px 25px;
        font-size: 1rem;
    }
    
    .toplanti-card {
        padding: 1.5rem;
    }
    
    .toplanti-baslik {
        font-size: 1.3rem;
    }
    
    .hero-logo {
        height: 220px;
        padding: 25px;
    }
    
    .logo-img {
        height: 70px;
    }
}

@media (max-width: 576px) {
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .toplanti-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .d-flex.gap-3 {
        flex-direction: column;
        gap: 1rem !important;
    }
    
    .hero-logo {
        height: 180px;
        padding: 20px;
    }
    
    .logo-img {
        height: 60px;
    }
    
    .navbar-brand {
        font-size: 1.2rem;
    }
}

/* Utility Classes */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gradient-primary {
    background: var(--gradient-primary);
}

.bg-gradient-secondary {
    background: var(--gradient-secondary);
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Modal Styles */
.modal-content {
    border-radius: 20px;
    border: none;
    box-shadow: var(--shadow-hover);
}

.modal-header {
    border-radius: 20px 20px 0 0;
    border: none;
}

.modal-footer {
    border: none;
    padding: 1.5rem;
}


/* Misafir Katılım Form - Başlangıçta gizli */
#misafir-katilim {
    display: none;
}

/* Footer */
footer {
    background: var(--dark-color) !important;
}

footer p {
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.5px;
}

footer .fa-copyright {
    color: var(--primary-color);
}

.footer-logo {
    height: 30px;
    width: auto;
    filter: brightness(0) invert(1);
    transition: all 0.3s ease;
    border-radius: 5px;
}

.footer-logo:hover {
    filter: brightness(0) invert(1) drop-shadow(0 0 8px rgba(255, 255, 255, 0.3));
    transform: scale(1.05);
}

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

/* Focus Styles */
.btn:focus,
.form-control:focus,
.form-select:focus {
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Success/Error States */
.is-valid {
    border-color: var(--success-color) !important;
}

.is-invalid {
    border-color: var(--danger-color) !important;
}

/* Custom Animations */
.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.bounce {
    animation: bounce 1s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}