/* ============================================
   AtlasLibrary LLC - نمط الموقع الرئيسي
   الألوان: سماوي (#0066CC) وأبيض (#FFFFFF)
   ============================================ */

:root {
    --primary-color: #0066CC;
    --secondary-color: #FFFFFF;
    --text-color: #333333;
    --light-gray: #F5F5F5;
    --border-color: #E0E0E0;
    --shadow: 0 2px 8px rgba(0, 102, 204, 0.1);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--secondary-color);
}

/* ============================================
   الرأس والتنقل
   ============================================ */

header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0052A3 100%);
    color: var(--secondary-color);
    padding: 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    text-decoration: none;
    color: var(--secondary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo:hover {
    opacity: 0.9;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-menu a:hover {
    opacity: 0.8;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: width 0.3s ease;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--secondary-color);
    margin: 5px 0;
    transition: var(--transition);
}

/* ============================================
   الأقسام الرئيسية
   ============================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 4rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 3rem;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), transparent);
}

/* ============================================
   البطل (Hero Section)
   ============================================ */

.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0052A3 100%);
    color: var(--secondary-color);
    padding: 6rem 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: bold;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    background-color: var(--secondary-color);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: var(--transition);
    border: 2px solid var(--secondary-color);
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    background-color: transparent;
    color: var(--secondary-color);
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--secondary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

/* ============================================
   البطاقات والشبكات
   ============================================ */

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.card {
    background: var(--secondary-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

.card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-5px);
}

.card-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.card p {
    color: var(--text-color);
    line-height: 1.8;
}

/* ============================================
   النماذج
   ============================================ */

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    font-weight: 500;
}

input[type="text"],
input[type="email"],
input[type="phone"],
textarea,
select {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="phone"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 5px rgba(0, 102, 204, 0.3);
}

textarea {
    resize: vertical;
    min-height: 150px;
}

.form-container {
    max-width: 600px;
    margin: 2rem auto;
    background: var(--light-gray);
    padding: 2rem;
    border-radius: 8px;
}

/* ============================================
   التذييل
   ============================================ */

footer {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0052A3 100%);
    color: var(--secondary-color);
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    opacity: 0.8;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 0.9rem;
}

/* ============================================
   الرسائل والإشعارات
   ============================================ */

.alert {
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 5px;
    border-left: 4px solid;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border-color: #28a745;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border-color: #f5c6cb;
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border-color: #bee5eb;
}

/* ============================================
   التصميم المتجاوب
   ============================================ */

@media (max-width: 768px) {
    .navbar {
        padding: 1rem;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--primary-color);
        padding: 1rem;
        gap: 0;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu a {
        padding: 0.5rem 0;
    }

    .hamburger {
        display: flex;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .navbar {
        padding: 0.8rem;
    }

    .logo {
        font-size: 1.3rem;
    }

    .hero h1 {
        font-size: 1.5rem;
    }

    .hero {
        padding: 3rem 0;
    }

    section {
        padding: 2rem 0;
    }

    .container {
        padding: 0 1rem;
    }
}

/* ============================================
   فئات مساعدة
   ============================================ */

.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-left {
    text-align: left;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

.hidden {
    display: none;
}

.visible {
    display: block;
}