/* Font definitions */
@font-face {
    font-family: 'IRANSansBold';
    src: url('../fonts/iransansbold.ttf') format('truetype');
    font-weight: bold;
    font-style: normal;
}

/* Index page specific styles */
body {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #d74033 100%);
    min-height: 100vh;
    font-family: 'IRANSans', sans-serif;
}

.intro-section {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #d74033 100%);
    color: white;
    padding: 80px 20px;
    text-align: center;
    margin-bottom: 0;
    position: relative;
    overflow: hidden;
}

.intro-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 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="3" fill="rgba(255,255,255,0.05)"/><circle cx="40" cy="80" r="1" fill="rgba(255,255,255,0.1)"/></svg>');
    animation: float 20s ease-in-out infinite;
}

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

.intro-title {
    font-size: 3rem;
    font-family: 'IRANSansBold', 'IRANSans', sans-serif;
    font-weight: bold;
    margin-bottom: 30px;
    text-shadow: 3px 3px 6px rgba(0,0,0,0.0);
    position: relative;
    z-index: 2;
    background: linear-gradient(45deg, #ffffff, #ffffff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.intro-text {
    font-size: 1.3rem;
    line-height: 2;
    max-width: 900px;
    margin: 0 auto;
    opacity: 0.95;
    position: relative;
    z-index: 2;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.0);
}

.main-content {
    background: linear-gradient(to bottom, transparent, rgba(247, 249, 252, 0.8), #f7f9fc);
    min-height: 100vh;
}

.registration-box {
    background: linear-gradient(145deg, #ffffff, #f8fafc);
    border-radius: 25px;
    padding: 50px;
    margin: 60px auto;
    max-width: 900px;
    box-shadow: 
        0 20px 40px rgba(30, 60, 114, 0.15),
        0 15px 25px rgba(215, 64, 51, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    text-align: center;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 2px solid transparent;
    background-clip: padding-box;
    position: relative;
    overflow: hidden;
}

.registration-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #1e3c72, #d74033);
    z-index: -1;
    border-radius: 25px;
    padding: 2px;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.registration-box:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 
        0 30px 60px rgba(30, 60, 114, 0.25),
        0 20px 40px rgba(215, 64, 51, 0.15);
}

.registration-box img {
    width: 100%;
    max-width: 450px;
    height: auto;
    border-radius: 20px;
    margin-bottom: 25px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    transition: transform 0.3s ease;
}

.registration-box:hover img {
    transform: scale(1.05);
}

.registration-box-title {
    font-size: 2.2rem;
    font-family: 'IRANSansBold', 'IRANSans', sans-serif;
    font-weight: bold;
    background: linear-gradient(135deg, #1e3c72, #d74033);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
    text-shadow: none;
}

.registration-box-subtitle {
    font-size: 1.2rem;
    color: #64748b;
    margin-bottom: 30px;
    line-height: 1.6;
}

.register-btn {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #d74033 100%);
    color: white;
    border: none;
    padding: 18px 45px;
    border-radius: 50px;
    font-size: 1.2rem;
    font-family: 'IRANSansBold', 'IRANSans', sans-serif;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(30, 60, 114, 0.3);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.register-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(30, 60, 114, 0.4);
    background: linear-gradient(135deg, #2a5298 0%, #d74033 50%, #1e3c72 100%);
}

.faq-section {
    max-width: 900px;
    margin: 80px auto;
    padding: 0 20px;
    position: relative;
}

.faq-title {
    text-align: center;
    font-size: 2.5rem;
    font-family: 'IRANSansBold', 'IRANSans', sans-serif;
    font-weight: bold;
    background: linear-gradient(135deg, #1e3c72, #d74033);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 50px;
    position: relative;
}

.faq-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, #1e3c72, #d74033);
    border-radius: 2px;
}

.faq-item {
    background: white;
    border-radius: 15px;
    margin-bottom: 25px;
    box-shadow: 
        0 8px 25px rgba(30, 60, 114, 0.1),
        0 4px 10px rgba(215, 64, 51, 0.05);
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid rgba(30, 60, 114, 0.1);
}

.faq-item:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 15px 35px rgba(30, 60, 114, 0.15),
        0 8px 20px rgba(215, 64, 51, 0.1);
}

.faq-question {
    padding: 25px;
    background: linear-gradient(135deg, rgba(30, 60, 114, 0.03), rgba(215, 64, 51, 0.03));
    cursor: pointer;
    font-family: 'IRANSansBold', 'IRANSans', sans-serif;
    font-weight: bold;
    font-size: 1.2rem;
    color: #1e3c72;
    border: none;
    width: 100%;
    text-align: right;
    transition: all 0.3s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question:hover {
    background: linear-gradient(135deg, rgba(30, 60, 114, 0.08), rgba(215, 64, 51, 0.08));
    color: #d74033;
}

.faq-question .icon {
    font-size: 1.4rem;
    transition: all 0.3s ease;
    color: #d74033;
    font-family: 'IRANSansBold', 'IRANSans', sans-serif;
    font-weight: bold;
}

.faq-question.active {
    background: linear-gradient(135deg, rgba(30, 60, 114, 0.1), rgba(215, 64, 51, 0.1));
}

.faq-question.active .icon {
    transform: rotate(180deg);
    color: #1e3c72;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: white;
}

.faq-answer.open {
    max-height: 400px;
}

.faq-answer-content {
    padding: 25px;
    color: #475569;
    line-height: 1.8;
    border-top: 1px solid rgba(30, 60, 114, 0.1);
    font-size: 1.1rem;
}

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

/* Enhanced responsive design */
@media (max-width: 1024px) {
    .intro-title {
        font-size: 2.5rem;
    }
    
    .registration-box {
        max-width: 600px;
        padding: 40px;
    }
    
    .faq-section {
        max-width: 800px;
    }
}

@media (max-width: 768px) {
    .intro-section {
        padding: 60px 15px;
    }
    
    .intro-title {
        font-size: 2.2rem;
        margin-bottom: 20px;
    }
    
    .intro-text {
        font-size: 1.1rem;
        line-height: 1.7;
    }
    
    .registration-box {
        margin: 30px 15px;
        padding: 30px 20px;
        border-radius: 20px;
    }
    
    .registration-box-title {
        font-size: 1.8rem;
    }
    
    .registration-box-subtitle {
        font-size: 1rem;
    }
    
    .register-btn {
        padding: 15px 35px;
        font-size: 1.1rem;
    }
    
    .faq-section {
        margin: 50px auto;
        padding: 0 15px;
    }
    
    .faq-title {
        font-size: 2rem;
    }
    
    .faq-question {
        padding: 20px;
        font-size: 1.1rem;
    }
    
    .faq-answer-content {
        padding: 20px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .intro-title {
        font-size: 1.8rem;
    }
    
    .intro-text {
        font-size: 1rem;
    }
    
    .registration-box {
        padding: 25px 15px;
    }
    
    .registration-box-title {
        font-size: 1.6rem;
    }
    
    .register-btn {
        padding: 12px 30px;
        font-size: 1rem;
    }
    
    .faq-question {
        padding: 15px;
        font-size: 1rem;
    }
    
    .faq-answer-content {
        padding: 15px;
    }
}