/* ===========================
   RESET & BASE
=========================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    direction: rtl;
}

body {
    font-family: "Cairo", "Tajawal", "Segoe UI", Arial, sans-serif;
    background-color: #f5f7fa;
    color: #222;
    line-height: 1.9;
}

/* ===========================
   HEADER
=========================== */
.page-header {
    background: url("../img/classebk.jpeg") center/cover no-repeat;
    color: #fff;
    text-align: center;
    padding: 80px 20px;
}

.page-header h1 {
    font-size: 8rem;
    margin-bottom: 10px;
    font-weight: 700;
    color: white;
}

.page-header p {
    font-size: 1.4rem;
    opacity: 1.3;
}
.hero-content {
  position: relative;
  color: #ffffff;
  text-align: center;
  z-index: 1;
  opacity:3;
}
.hero-logo {
  max-width: 170px;
  height: auto;
  margin-bottom: 15px;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.3));
}

/* ===========================
   MAIN CONTAINER
=========================== */
.presentation-container {
    max-width: 1100px;
    margin: 60px auto;
    padding: 0 20px;
}

/* ===========================
   SECTIONS
=========================== */
.presentation-container section {
    background: #fff;
    padding: 35px;
    margin-bottom: 35px;
    border-radius: 14px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.07);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.presentation-container section:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 35px rgba(0, 0, 0, 0.12);
}

.presentation-container h2 {
    font-size: 1.8rem;
    color: #0b5ed7;
    margin-bottom: 15px;
    position: relative;
}

/* Underline accent */
.presentation-container h2::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: -6px;
    width: 60px;
    height: 3px;
    background-color: #f0ad4e;
    border-radius: 5px;
}

.presentation-container p {
    font-size: 1.2rem;
    color: #444;
}

/* ===========================
   LISTS
=========================== */
.presentation-container ul {
    list-style: none;
    padding-right: 0;
    margin-top: 10px;
}

.presentation-container ul li {
    position: relative;
    padding-right: 28px;
    margin-bottom: 12px;
    font-size: 1.05rem;
    color: #333;
}

/* Custom bullet */
.presentation-container ul li::before {
    content: "✓";
    position: absolute;
    right: 0;
    top: 2px;
    color: #198754;
    font-weight: bold;
}

/* ===========================
   FOOTER
=========================== */
.page-footer {
    background-color: #111;
    color: #aaa;
    text-align: center;
    padding: 25px 10px;
    font-size: 0.95rem;
}

.page-footer p {
    margin: 0;
}

/* ===========================
   RESPONSIVE
=========================== */
@media (max-width: 768px) {
    .page-header h1 {
        font-size: 3.5rem;
    }

    .presentation-container section {
        padding: 25px;
    }

    .presentation-container h2 {
        font-size: 1.5rem;
    }
}