/* style_2025.css - النسخة النهائية الشاملة */

/* ... (نفس الأكواد السابقة لـ body, header, container, grid-nav) ... */

body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.7; color: #2c3e50; margin: 0; padding: 0; background-color: #f8f9fa; direction: rtl; scroll-behavior: smooth; }
header { background: linear-gradient(135deg, #1a252f 0%, #2c3e50 100%); color: #ffffff; padding: 3rem 0; text-align: center; border-bottom: 6px solid #d35400; }
nav { margin-top: 20px; }
nav a { color: #e67e22 !important; text-decoration: none; margin: 0 10px; font-weight: bold; border: 1px solid #e67e22; padding: 8px 20px; border-radius: 25px; font-size: 0.95rem; display: inline-block; transition: all 0.3s ease; }
nav a:hover { background: #e67e22; color: #fff !important; }
.container { max-width: 1100px; margin: -40px auto 2rem; padding: 2rem; background: #ffffff; box-shadow: 0 15px 35px rgba(0,0,0,0.1); border-radius: 10px; position: relative; z-index: 10; }
h2 { color: #e67e22; border-right: 6px solid #2c3e50; padding-right: 15px; margin-top: 2.5rem; font-size: 1.8rem; }

/* تنسيقات الصناديق والبطاقات العامة */
.principle-box, .intro-box, .variable-card, .character-card { 
    background: #fdfefe; padding: 2rem; border: 1px solid #e1e8ed; 
    border-right: 6px solid #34495e; margin: 1.5rem 0; border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

/* --- تنسيقات خاصة بالبيان المنهجي (تمت إعادتها بدقة) --- */
.warning-box {
    background-color: #fff9f9 !important;
    border-right: 6px solid #c0392b !important; /* اللون الأحمر التحذيري */
}
.warning-title { 
    color: #c0392b; 
    font-weight: bold; 
    font-size: 1.6rem; 
    margin-bottom: 15px; 
    display: block; 
    border-bottom: 2px solid #c0392b;
    padding-bottom: 5px;
}
.term-tag { 
    background: #eee; 
    padding: 2px 10px; 
    border-radius: 4px; 
    font-family: 'Courier New', Courier, monospace; 
    font-size: 1rem; 
    color: #c0392b; 
    font-weight: bold;
    border: 1px solid #ddd;
}
.back-link { 
    display: inline-block; margin-bottom: 30px; color: #e67e22; 
    text-decoration: none; font-weight: bold; border: 1px solid #e67e22; 
    padding: 8px 25px; border-radius: 25px; transition: 0.3s; 
}
.back-link:hover { background: #e67e22; color: #fff; }

/* --- الجداول والشبكات --- */
.comparison-table { width: 100%; border-collapse: collapse; margin: 25px 0; }
.comparison-table th { background-color: #2c3e50; color: white; padding: 15px; }
.comparison-table td { padding: 15px; border: 1px solid #ddd; }
.grid-nav { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; margin-top: 3rem; }
.nav-card { background: #fff; border: 1px solid #eee; padding: 2rem; border-radius: 12px; text-align: center; transition: 0.4s; }
.nav-card:hover { border-color: #d35400; transform: translateY(-10px); }
.nav-card a { text-decoration: none; color: #2c3e50; font-weight: bold; border-bottom: 2px solid #e67e22; display: block; margin-bottom: 10px; }

footer { text-align: center; padding: 3rem; background: #2c3e50; color: #bdc3c7; margin-top: 4rem; }

/* --- تنسيقات الدليل المرجعي ومقترحات البحث --- */
.reference-section { margin-bottom: 60px; }

.main-books {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.book-card {
    background: #fdfefe;
    border: 1px solid #e1e8ed;
    padding: 25px;
    text-align: center;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.03);
    border-top: 4px solid #d35400;
}

.book-card strong { 
    display: block; 
    color: #2c3e50; 
    font-size: 1.2rem; 
    margin-bottom: 10px;
}

.research-category {
    background: #fff;
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    border-top: 5px solid #2c3e50; /* لون افتراضي يمكن تغييره في الـ HTML */
}

.category-title {
    color: #e67e22;
    font-size: 1.6rem;
    margin-bottom: 20px;
    font-weight: bold;
}

.proposal-item {
    border-right: 3px solid #eee;
    padding-right: 15px;
    margin-bottom: 25px;
    transition: 0.3s;
}

.proposal-item:hover { border-right-color: #e67e22; }

.degree-tag {
    font-size: 0.75rem;
    background: #2c3e50;
    color: #fff;
    padding: 3px 10px;
    border-radius: 4px;
    margin-left: 10px;
    vertical-align: middle;
    font-weight: normal;
}

.source-ref {
    font-size: 0.85rem;
    color: #7f8c8d;
    font-style: italic;
    display: block;
    margin-top: 8px;
}