@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@300;400;500;600;700;800&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* --- نظام الألوان والمتغيرات الأساسية --- */
:root {
    /* الوضع الداكن (الافتراضي) - Midnight Obsidian & Aurora Indigo Theme */
    --bg-primary: #07080e;
    --bg-secondary: #0e111d;
    --bg-tertiary: #191c2f;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-primary: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --accent-silver: #a855f7;
    --accent-silver-glow: rgba(99, 102, 241, 0.18);
    --border-color: rgba(99, 102, 241, 0.15);
    --border-hover: rgba(168, 85, 247, 0.35);
    --shadow-color: rgba(0, 0, 0, 0.6);
    --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.8), 0 0 1px 1px rgba(99, 102, 241, 0.1);
    --btn-bg: #191c2f;
    --btn-hover: #22263f;
    --input-bg: #0b0c13;
    
    /* سرعة الحركات */
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s ease;
}

[data-theme="light"] {
    /* الوضع المضيء - Light Lavender Blue Theme */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent-primary: linear-gradient(135deg, #4f46e5 0%, #3b82f6 100%);
    --accent-silver: #4f46e5;
    --accent-silver-glow: rgba(79, 70, 229, 0.10);
    --border-color: rgba(79, 70, 229, 0.08);
    --border-hover: rgba(79, 70, 229, 0.20);
    --shadow-color: rgba(0, 0, 0, 0.03);
    --card-shadow: 0 10px 30px -10px rgba(79, 70, 229, 0.05), 0 0 1px 1px rgba(79, 70, 229, 0.04);
    --btn-bg: #f1f5f9;
    --btn-hover: #e2e8f0;
    --input-bg: #f8fafc;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: var(--transition-smooth);
    overflow-x: hidden;
}

/* ضبط الخطوط بناءً على اللغة */
body[lang="ar"] {
    font-family: 'Cairo', sans-serif;
}

body[lang="en"] {
    font-family: 'Outfit', sans-serif;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

button, input, textarea {
    font-family: inherit;
    outline: none;
}

ul {
    list-style: none;
}

/* شريط التمرير المخصص الفاخر */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

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

.section {
    padding: 8rem 0 4rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3.5rem;
    position: relative;
    letter-spacing: -0.5px;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent-silver), transparent);
    margin: 0.8rem auto 0 auto;
}

/* حواف فضية متوهجة */
.silver-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    transition: var(--transition-smooth);
}

.silver-card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 15px 35px -5px var(--shadow-color), 0 0 15px 0 var(--accent-silver-glow);
    transform: translateY(-5px);
}

/* الأزرار التفاعلية المميزة */
.btn-primary {
    background: var(--accent-primary);
    color: #ffffff;
    font-weight: 600;
    padding: 0.8rem 1.8rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.25);
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

[data-theme="light"] .btn-primary {
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(79, 70, 229, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45);
}

[data-theme="light"] .btn-primary:hover {
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.35);
}

.btn-secondary {
    background-color: var(--btn-bg);
    color: var(--text-primary);
    font-weight: 500;
    padding: 0.8rem 1.8rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

/* --- شريط التنقل العلوي Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(15, 16, 19, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-smooth);
}

[data-theme="light"] .navbar {
    background-color: rgba(244, 245, 248, 0.75);
}

.navbar .container {
    height: 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: var(--accent-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.action-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition-fast);
}

.action-btn:hover {
    background-color: var(--btn-bg);
    border-color: var(--text-secondary);
}

.nav-toggle {
    display: none;
    cursor: pointer;
    font-size: 1.5rem;
}

/* --- قسم الترحيب Hero Section --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    position: relative;
    background: radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.03) 0%, transparent 50%);
}

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

.hero-subtitle {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero-title span {
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.typing-container {
    height: 40px;
    margin-bottom: 2rem;
}

.hero-typing {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    border-right: 3px solid var(--text-primary);
    white-space: nowrap;
    animation: blink 0.75s step-end infinite;
}

body[dir="rtl"] .hero-typing {
    border-right: none;
    border-left: 3px solid var(--text-primary);
}

.hero-description {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 650px;
}

.hero-btns {
    display: flex;
    gap: 1rem;
}

/* --- قسم نبذة عني وسجل الأحداث About & Timeline --- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.about-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

.detail-item h4 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 0.3rem;
}

.detail-item p {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* جدول المسيرة المهنية والتعليمية Timeline */
.timeline {
    position: relative;
    padding-left: 2rem;
}

body[dir="rtl"] .timeline {
    padding-left: 0;
    padding-right: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 2px;
    background-color: var(--border-color);
}

body[dir="rtl"] .timeline::before {
    left: auto;
    right: 0;
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-item::before {
    content: '';
    position: absolute;
    top: 6px;
    left: -2.35rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--bg-primary);
    border: 2px solid var(--text-primary);
    z-index: 1;
}

body[dir="rtl"] .timeline-item::before {
    left: auto;
    right: -2.35rem;
}

.timeline-date {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.timeline-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
}

.timeline-subtitle {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
}

.timeline-desc {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* --- قسم المهارات Skills --- */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.skills-category {
    padding: 2.5rem;
}

.skills-category h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.7rem;
}

.skills-category h3 i {
    color: var(--text-secondary);
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.95rem;
}

.skill-name {
    font-weight: 600;
}

.skill-level {
    color: var(--text-secondary);
}

.skill-bar {
    height: 6px;
    background-color: var(--bg-tertiary);
    border-radius: 3px;
    overflow: hidden;
    position: relative;
}

.skill-progress {
    height: 100%;
    background: var(--accent-primary);
    border-radius: 3px;
    width: 0; /* يتم تحديثه ديناميكياً بـ JS أو الحركات */
    transition: width 1.5s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- معرض المشاريع Portfolio --- */
.portfolio-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-bottom: 3.5rem;
}

.filter-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.6rem 1.4rem;
    border-radius: 30px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition-smooth);
}

.filter-btn:hover, .filter-btn.active {
    background-color: var(--text-primary);
    color: var(--bg-primary);
    border-color: var(--text-primary);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.project-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    cursor: pointer;
}

.project-img-wrapper {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.project-card:hover .project-img {
    transform: scale(1.05);
}

.project-info {
    padding: 1.8rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.project-tag {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: 0.3rem 0.7rem;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.project-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
}

.project-desc {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.project-link i {
    font-size: 0.8rem;
    transition: var(--transition-fast);
}

.project-card:hover .project-link i {
    transform: translateX(3px);
}

body[dir="rtl"] .project-card:hover .project-link i {
    transform: translateX(-3px);
}

/* --- النافذة المنبثقة للمشروع Modal --- */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1100;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
}

.modal.active {
    opacity: 1;
    pointer-events: all;
}

.modal-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: rgba(10, 11, 14, 0.85);
    backdrop-filter: blur(8px);
}

.modal-container {
    position: relative;
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    z-index: 1;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transform: translateY(20px) scale(0.95);
    transition: var(--transition-smooth);
}

.modal.active .modal-container {
    transform: translateY(0) scale(1);
}

.modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 10;
    background-color: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    font-size: 1.2rem;
    transition: var(--transition-fast);
}

body[dir="rtl"] .modal-close {
    right: auto;
    left: 1.5rem;
}

.modal-close:hover {
    background-color: var(--text-primary);
    color: var(--bg-primary);
}

.modal-img-wrapper {
    width: 100%;
    aspect-ratio: 16/9;
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.modal-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-content {
    padding: 3rem;
}

.modal-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.2rem;
}

.modal-title {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.modal-desc {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.modal-meta-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2.5rem;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem 0;
}

.meta-item h4 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 0.4rem;
}

.meta-item p {
    font-size: 1.05rem;
    font-weight: 600;
}

.modal-actions {
    display: flex;
    gap: 1rem;
}

/* --- قسم اتصل بي Contact --- */
.contact-grid {
    display: grid;
    grid-template-columns: 4fr 5fr;
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.contact-header p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-method-card {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
}

.method-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.3rem;
    color: var(--text-primary);
}

.method-details h4 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 0.2rem;
}

.method-details p {
    font-size: 1.05rem;
    font-weight: 600;
}

.contact-form {
    padding: 3rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-control {
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.8rem 1rem;
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.form-control:focus {
    border-color: var(--text-secondary);
    box-shadow: 0 0 0 3px var(--accent-silver-glow);
}

textarea.form-control {
    resize: none;
    min-height: 150px;
}

/* رسائل حالة نموذج الاتصال */
.form-status {
    padding: 0.8rem 1rem;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    display: none;
}

.form-status.success {
    display: block;
    background-color: rgba(16, 185, 129, 0.1);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.form-status.error {
    display: block;
    background-color: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* --- التذييل Footer --- */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 3rem 0;
    text-align: center;
    background-color: var(--bg-secondary);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.footer-socials {
    display: flex;
    gap: 1.5rem;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition-fast);
}

.social-link:hover {
    background-color: var(--text-primary);
    color: var(--bg-primary);
    border-color: var(--text-primary);
    transform: translateY(-3px);
}

.footer-copy {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* --- الحركات والأنيميشن --- */
@keyframes blink {
    from, to { border-color: transparent }
    50% { border-color: var(--text-primary) }
}

/* تكييف التصميم للتجاوب (Responsive Layouts) */
@media (max-width: 992px) {
    .section {
        padding: 6rem 0 3rem 0;
    }
    .hero-title {
        font-size: 3.2rem;
    }
    .about-grid, .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .contact-form {
        padding: 2rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }
    .nav-toggle {
        display: block;
        color: var(--text-primary);
    }
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--bg-primary);
        flex-direction: column;
        padding: 3rem 2rem;
        gap: 2rem;
        transition: var(--transition-smooth);
        border-top: 1px solid var(--border-color);
    }
    .nav-menu.active {
        left: 0;
    }
    .hero-title {
        font-size: 2.5rem;
    }
    .modal-content {
        padding: 2rem;
    }
    .modal-meta-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

/* --- قسم الخدمات Services --- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}

.service-card {
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.2rem;
    height: 100%;
}

.service-icon {
    font-size: 2.2rem;
    background: var(--accent-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
    display: inline-block;
    filter: drop-shadow(0 2px 8px rgba(99, 102, 241, 0.3));
}

[data-theme="light"] .service-icon {
    filter: drop-shadow(0 2px 8px rgba(79, 70, 229, 0.15));
}

.service-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.service-card-desc {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

/* بطاقة عريضة لتطوير المواقع والويب */
.full-width-card {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 2.5rem;
    padding: 2.5rem 3rem;
}

.full-width-card .service-icon {
    font-size: 3rem;
    flex-shrink: 0;
}

.full-width-card .service-content-wrapper {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

@media (max-width: 768px) {
    .full-width-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.2rem;
        padding: 2.5rem 2rem;
    }
    
    .full-width-card .service-icon {
        font-size: 2.2rem;
    }
}