/* ================================
   الخطوط والخلفية العامة
================================== */
@import url('https://fonts.googleapis.com/css2?family=Tajawal:wght@400;500;700&display=swap');

body {
    font-family: 'Tajawal', sans-serif;
    background: #f4f2fa;
    color: #2c2c2c;
    line-height: 1.7;
    scroll-behavior: smooth;
}

/* ================================
   العناوين
================================== */
.section-title {
    font-size: 32px;
    font-weight: 700;
    color: #4a148c;
    margin-bottom: 25px;
    text-align: center;
    position: relative;
}

.section-title::after {
    content: "";
    display: block;
    width: 60px;
    height: 4px;
    background: #6a1b9a;
    margin: 10px auto 0;
    border-radius: 2px;
}

/* ================================
   الهيدر Navbar
================================== */
.navbar {
    background: #4a148c;
    padding: 14px 0;
    box-shadow: 0 4px 15px rgba(0,0,0,0.12);
}

.navbar-brand {
    font-weight: 700;
    font-size: 22px;
    color: #fff;
    display: flex;
    align-items: center;
}

.navbar-brand img {
    margin-left: 10px;
}

.nav-link {
    color: #fff !important;
    font-weight: 500;
    margin: 0 10px;
    transition: 0.3s;
}

.nav-link:hover {
    color: #ffca28 !important;
    transform: translateY(-3px);
}

/* ================================
   قسم من نحن Hero
================================== */
.hero {
    background: linear-gradient(135deg, #4a148c, #6a1b9a);
    color: #fff;
    padding: 90px 20px;
    border-radius: 0 0 40px 40px;
    text-align: center;
}

.hero p {
    font-size: 20px;
    max-width: 800px;
    margin: 20px auto 0;
}

/* ================================
   البطاقات Cards
================================== */
.card {
    border: none;
    border-radius: 18px;
    transition: 0.4s;
    background: #fff;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.card h4, .card h6 {
    color: #4a148c;
    font-weight: 600;
}

/* ================================
   الفورم التسجيل
================================== */
form#joinForm {
    border-radius: 20px;
    padding: 30px;
    background: #fff;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    max-width: 600px;
    margin: auto;
}

.form-control, select {
    height: 50px;
    border-radius: 12px;
    border: 1px solid #ccc;
    transition: 0.3s;
}

.form-control:focus, select:focus {
    border-color: #4a148c;
    box-shadow: 0 0 8px rgba(74, 20, 140, 0.3);
}

button[type="submit"] {
    background: #4a148c;
    border: none;
    padding: 14px;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    width: 100%;
    transition: 0.4s;
}

button[type="submit"]:hover {
    background: #6a1b9a;
    transform: scale(1.02);
}

/* ================================
   تواصل معنا
================================== */
#contact p {
    font-size: 18px;
}

/* ================================
   الفوتر
================================== */
.footer {
    background: #4a148c;
    color: #fff;
    padding: 30px 0;
    text-align: center;
    border-radius: 40px 40px 0 0;
}

.footer a {
    font-size: 22px;
    color: #fff;
    margin: 0 12px;
    transition: 0.3s;
}

.footer a:hover {
    color: #ffca28;
}

/* ================================
   الأنيميشن Fade-Up
================================== */
.fade-up, .card {
    opacity: 0;
    transform: translateY(40px);
    transition: 0.9s ease-out;
}

.appear {
    opacity: 1;
    transform: translateY(0);
}

/* ================================
   Responsive
================================== */
@media (max-width: 768px) {
    .hero { padding: 60px 15px; }
    .section-title { font-size: 26px; }
    .navbar-brand { font-size: 18px; }
    .form-control { height: 45px; }
}


.conference-poster {
    width: 100%;
    overflow: hidden;
    margin-bottom: 30px;
    border-radius: 12px;
}

.conference-poster img {
    width: 100%;
    height: 75%;
    display: block;
    transition: transform 0.5s ease, filter 0.5s ease;
    object-fit: cover;
}

/* تأثير بسيط عند Hover */
.conference-poster img:hover {
    transform: scale(0.70);
    filter: brightness(1.1);
}