:root {
    --bg-primary: #030712;
    --bg-secondary: #0b1329;
    --bg-card: rgba(15, 23, 42, 0.7);
    --accent-blue: #38bdf8;
    --accent-glow: rgba(56, 189, 248, 0.25);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border-glass: rgba(56, 189, 248, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
    font-family: 'Cairo', sans-serif;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-main);
    overflow-x: hidden;
    text-align: right;
}

html {
    width: 100%;
    max-width: 100%;
}

body {
    margin: 0;
    width: 100%;
    max-width: 100%;
}

*, *::before, *::after {
    box-sizing: border-box;
}

img,
video,
iframe {
    max-width: 100%;
    height: auto;
}

/* --- الواجهة الرئيسية مع محاكاة الرؤية ثلاثية الأبعاد --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8rem 2rem 4rem;
    background: radial-gradient(circle at center, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    perspective: 1000px;
    z-index:1000;
}

.hero-content {
    max-width: 1200px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    z-index: 2;
}

.hero-text h1 {
    font-size: 3rem;
    font-weight: 900;
    line-height: 1.3;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #ffffff 30%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-text p {
    color: var(--text-muted);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: linear-gradient(135deg, #0284c7, var(--accent-blue));
    color: white;
    padding: 0.85rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    box-shadow: 0 0 20px var(--accent-glow);
    transition: var(--transition);
}

    .btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 0 30px rgba(56, 189, 248, 0.5);
    }

/* حاوية المكعب ثلاثي الأبعاد */
.vision-3d-container {
    width: 100%;
    height: 380px;
    position: relative;
    transform-style: preserve-3d;
    animation: floatScene 6s ease-in-out infinite;
}

.cube-3d {
    width: 220px;
    height: 220px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transform-style: preserve-3d;
    animation: rotateCube 20s linear infinite;
}

.cube-face {
    position: absolute;
    width: 220px;
    height: 220px;
    background: rgba(14, 165, 233, 0.05);
    border: 1px solid var(--accent-blue);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--accent-blue);
    box-shadow: inset 0 0 20px var(--accent-glow);
}

.front {
    transform: rotateY(0deg) translateZ(110px);
}

.back {
    transform: rotateY(180deg) translateZ(110px);
}

.right {
    transform: rotateY(90deg) translateZ(110px);
}

.left {
    transform: rotateY(-90deg) translateZ(110px);
}

.top {
    transform: rotateX(90deg) translateZ(110px);
}

.bottom {
    transform: rotateX(-90deg) translateZ(110px);
}

@keyframes rotateCube {
    0% {
        transform: translate(-50%, -50%) rotateX(0deg) rotateY(0deg);
    }

    100% {
        transform: translate(-50%, -50%) rotateX(360deg) rotateY(360deg);
    }
}

@keyframes floatScene {
    0%, 100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-15px);
    }
}

/* --- تنسيقات الأقسام العامة --- */
section {
    padding: 7rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

    .section-header h2 {
        font-size: 2.5rem;
        font-weight: 700;
        margin-bottom: 1rem;
    }

    .section-header p {
        color: var(--text-muted);
        font-size: 1.05rem;
    }

/* --- القسم الأول: الرؤية والرسالة --- */
.vm-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 2.5rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

    .glass-card:hover {
        border-color: var(--accent-blue);
        box-shadow: 0 0 25px var(--accent-glow);
        transform: translateY(-5px);
    }

    .glass-card i {
        font-size: 2.5rem;
        color: var(--accent-blue);
        margin-bottom: 1.5rem;
    }

    .glass-card h3 {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }

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

/* --- القسم الثاني: الأهداف --- */
.goals-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.goal-card {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 2rem;
    border-right: 4px solid var(--accent-blue);
    border-left: none;
    transition: var(--transition);
}

    .goal-card:hover {
        background: rgba(11, 19, 41, 0.9);
        transform: translateX(-5px);
    }

.goal-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: 0.75rem;
}

/* --- القسم الثالث: الفريق --- */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}

.team-member {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    overflow: hidden;
    text-align: center;
    transition: var(--transition);
}

    .team-member:hover {
        border-color: var(--accent-blue);
        transform: translateY(-5px);
    }

.team-avatar {
    height: 180px;
    background: linear-gradient(135deg, #0b1329, #0284c7);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.2);
}

.team-info {
    padding: 1.5rem;
}

    .team-info h4 {
        font-size: 1.2rem;
        margin-bottom: 0.25rem;
    }

    .team-info span {
        color: var(--accent-blue);
        font-size: 0.9rem;
        font-weight: 600;
    }

/* --- القسم الرابع: الخدمات --- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 2.5rem;
    transition: var(--transition);
}

    .service-card:hover {
        border-color: var(--accent-blue);
        box-shadow: 0 0 25px var(--accent-glow);
    }

    .service-card i {
        font-size: 2rem;
        color: var(--accent-blue);
        margin-bottom: 1.25rem;
    }

    .service-card h3 {
        font-size: 1.35rem;
        margin-bottom: 0.75rem;
    }

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

/* --- التذييل --- */
footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-glass);
    text-align: center;
    padding: 2.5rem 2rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* التجاوب مع الشاشات الصغيرة */
@media(max-width: 900px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 2.25rem;
    }

    .hero-text .btn {
        margin: 0 auto;
    }

    .nav-links {
        display: none;
    }
}

/* Top Bar */
.top-bar {
    background-color: black;
    color: white;
    height: 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-left: 50px;
    font-size: 13px;
    position: relative;
    z-index: 1001;
}

.su-badge-link {
    display: flex;
    align-items: center;
    background: #2b2b2b;
    color: white;
    text-decoration: none;
    height: 100%;
    padding: 0 25px;
    border-left: 3px solid var(--su-gold);
    font-weight: 700;
    font-size: 15px;
    transition: var(--transition-smooth);
}

    .su-badge-link i {
        margin-left: 10px;
        color: var(--su-gold);
        font-size: 18px;
    }

    .su-badge-link:hover {
        background: var(--su-gold);
        color: var(--su-dark);
    }

        .su-badge-link:hover i {
            color: var(--su-dark);
        }

.top-contacts {
    display: flex;
    gap: 20px;
}

    .top-contacts span {
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .top-contacts i {
        color: var(--su-gold);
    }

/* Navigation Header */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.04);
    position: sticky;
    top: 0;
    z-index: 9999;
    padding: 5px 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-text h1 {
    font-size: 20px;
    font-weight: 900;
    color: black;
    line-height: 1.5;
}

.logo-text p {
    font-size: 11px;
    color: rgba(0,0,0,0.5);
    font-weight: 600;
}

/* Main Menu Desktop */
.nav-menu {
    display: flex;
    list-style: none;
    gap: 10px;
    align-items: center;
}

.nav-menu li a {
    text-decoration: none;
    color: var(--su-dark);
    font-weight: 700;
    font-size: 14.5px;
    transition: var(--transition-smooth);
    padding: 8px 14px;
    border-radius: 6px;
    display: block;
}

.nav-menu li a:hover {
    color: var(--su-green);
}

.menu-toggle {
    display: none;
    font-size: 26px;
    color: var(--su-green);
    cursor: pointer;
    z-index: 10002;
}

/* Responsive Mobile Side Menu */
@media (max-width: 992px) {
      .top-bar { padding-left: 20px; font-size: 11px; }
    .top-contacts span { display: none; }
    .top-contacts .lang-toggle { display: inline-flex; }


    header {
        padding: 15px 20px;
        flex-direction: row;
        justify-content: space-between;
    }

    .menu-toggle {
        display: block;
        margin-right: auto;
        padding-left: 5px;
        color:black;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: white;
        box-shadow: -5px 0 25px rgba(0,0,0,0.15);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px 30px 40px 30px;
        gap: 20px;
        transition: var(--transition-smooth);
        z-index: 10001;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu li a {
        width: 100%;
        padding: 12px 15px;
        border-bottom: 1px solid #eee;
    }

    .logo-text h1 {
        font-size: 16px;
    }

    .menu-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: rgba(0, 0, 0, 0.4);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-smooth);
        z-index: 10000;
    }

    .menu-overlay.active {
        opacity: 1;
        visibility: visible;
    }
}

/* تعويض ارتفاع الهيدر عند الانتقال للأقسام */
section[id] {
    scroll-margin-top: 90px;
}

/* =========================================================
   أنماط إضافية — خاصة بالعناصر الجديدة
   ========================================================= */

/* رأس بطاقة "من نحن" (أيقونة + عنوان في سطر واحد) */
.glass-card .about-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 1.5rem;
}

.glass-card .about-header i {
    font-size: 2rem;
    color: var(--accent-blue);
    margin: 0;
    padding: 0;
}

.glass-card .about-header h3 {
    margin: 0;
    font-size: 1.5rem;
}

/* شرائح المهام العلمية والبحثية */
.glass-card .task-chips {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-top: 1.25rem;
}

.glass-card .task-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: 50px;
    color: var(--text-main);
    font-size: 0.82rem;
    line-height: 1.2;
    width: auto;
    height: auto;
}

.glass-card .task-chip i {
    color: var(--accent-blue);
    font-size: 0.8rem;
    margin: 0;
    padding: 0;
    background: none;
    border: none;
    width: auto;
    height: auto;
    display: inline-block;
}