/* ======== الخطوط ======== */
@import url('https://fonts.googleapis.com/css2?family=Tajawal:wght@300;400;500;700;900&display=swap');

/* ======== متغيرات CSS ======== */
:root {
    /* الألوان الأساسية */
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --text-color: #1e293b;
    --text-light: #64748b;
    --background-color: #ffffff;
    --background-alt: #f1f5f9;
    --border-color: #e2e8f0;
    --success-color: #10b981;
    --error-color: #ef4444;
    --neon-color: #4f46e5;
    --glow-color: rgba(79, 70, 229, 0.6);
    
    /* الخط وحجمه */
    --font-family: 'Tajawal', sans-serif;
    --font-size-small: 0.875rem;
    --font-size-normal: 1rem;
    --font-size-medium: 1.125rem;
    --font-size-large: 1.5rem;
    --font-size-xlarge: 2rem;
    --font-size-xxlarge: 3rem;
    
    /* المساحات */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* الزوايا */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 1rem;
    --border-radius-full: 9999px;
    
    /* الظلال */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-neon: 0 0 10px var(--glow-color), 0 0 20px var(--glow-color);
    
    /* الانتقالات */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* رسوم متحركة */
    --animation-bounce: bounce 1s infinite alternate;
    --animation-float: float 3s infinite ease-in-out;
    --animation-pulse: pulse 2s infinite;
    --animation-spin: spin 10s linear infinite;
}

/* ======== الوضع الداكن ======== */
[data-theme="dark"] {
    --primary-color: #3b82f6;
    --secondary-color: #60a5fa;
    --accent-color: #93c5fd;
    --text-color: #f1f5f9;
    --text-light: #cbd5e1;
    --background-color: #0f172a;
    --background-alt: #1e293b;
    --border-color: #334155;
}

/* ======== إعادة ضبط الستايل ======== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    scroll-padding-top: 80px; /* لضمان عدم اختفاء العناصر خلف القائمة العلوية */
}

body {
    font-family: var(--font-family);
    color: var(--text-color);
    background-color: var(--background-color);
    line-height: 1.6;
    overflow-x: hidden;
    direction: rtl;
    cursor: none; /* إخفاء المؤشر الافتراضي لاستخدام مؤشر مخصص */
}

/* مؤشر مخصص */
.cursor-dot,
.cursor-follower {
    position: fixed;
    top: 0;
    left: 0;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    z-index: 9999;
    pointer-events: none;
}

.cursor-dot {
    width: 8px;
    height: 8px;
    background-color: var(--primary-color);
    transition: width 0.2s, height 0.2s, opacity 0.2s;
}

.cursor-follower {
    width: 30px;
    height: 30px;
    background-color: rgba(59, 130, 246, 0.3);
    transition: transform 0.3s ease, width 0.3s ease, height 0.3s ease, background-color 0.3s ease;
}

/* حالة المؤشر عند الدخول على روابط أو أزرار */
a:hover ~ .cursor-follower,
button:hover ~ .cursor-follower,
.btn:hover ~ .cursor-follower {
    transform: translate(-50%, -50%) scale(1.5);
    background-color: rgba(59, 130, 246, 0.1);
}

a:hover ~ .cursor-dot,
button:hover ~ .cursor-dot,
.btn:hover ~ .cursor-dot {
    width: 4px;
    height: 4px;
}

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

a:hover {
    color: var(--secondary-color);
}

ul, ol {
    list-style: none;
}

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

/* ======== الكانفاس ثلاثي الأبعاد ======== */
#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    opacity: 0.8;
}

/* ======== شاشة التحميل ======== */
.loader-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--background-color);
    z-index: 9999;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}

.loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
}

.loader svg {
    width: 100px;
    height: 100px;
    transform: rotate(-90deg);
}

.loader circle {
    fill: transparent;
    stroke: var(--primary-color);
    stroke-width: 4px;
    stroke-dasharray: 200;
    stroke-dashoffset: 200;
    animation: circle-animation 2s ease forwards;
}

@keyframes circle-animation {
    to {
        stroke-dashoffset: 0;
    }
}

.loader-text {
    font-size: var(--font-size-large);
    font-weight: 700;
    color: var(--primary-color);
    opacity: 0;
    animation: fade-in 1s ease 0.5s forwards;
}

.loader-progress {
    width: 200px;
    height: 4px;
    background-color: var(--background-alt);
    border-radius: var(--border-radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    width: 0;
    background-color: var(--primary-color);
    animation: progress 2s ease forwards;
}

@keyframes fade-in {
    to {
        opacity: 1;
    }
}

@keyframes progress {
    to {
        width: 100%;
    }
}

.loader-container.loaded {
    opacity: 0;
    visibility: hidden;
}

.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.6;
}

/* ======== الهيدر والقائمة ======== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition-normal);
}

[data-theme="dark"] header {
    background-color: rgba(15, 23, 42, 0.9);
}

header.scrolled {
    padding-top: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    box-shadow: var(--shadow-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-svg {
    overflow: visible;
}

.logo-circle {
    fill: var(--primary-color);
    transform-origin: center;
    animation: var(--animation-pulse);
}

.logo-text {
    fill: white;
    font-family: var(--font-family);
    font-weight: 700;
    font-size: 24px;
}

.logo h1 {
    font-size: var(--font-size-large);
    font-weight: 700;
    color: var(--primary-color);
    position: relative;
    overflow: hidden;
}

.logo h1::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
    transform: translateX(-101%);
    transition: transform 0.4s ease;
}

.logo:hover h1::after {
    transform: translateX(0);
}

nav {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-menu li {
    perspective: 1000px;
    position: relative;
}

.nav-menu li a {
    color: var(--text-color);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    transition: var(--transition-fast);
    position: relative;
    display: block;
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    right: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition-fast);
}

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

.nav-menu li a:hover,
.nav-menu li a.active {
    color: var(--primary-color);
}

.nav-menu li a:hover {
    transform: translateY(-2px);
}

.nav-menu li a::before {
    content: attr(data-text);
    position: absolute;
    top: 0;
    right: 0;
    color: var(--primary-color);
    clip-path: polygon(0 0, 200% 0, 0 0, 0 100%);
    transition: clip-path 0.4s ease;
    pointer-events: none;
}

.nav-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-color);
    font-size: var(--font-size-large);
    cursor: pointer;
}

.theme-toggle {
    cursor: pointer;
    font-size: var(--font-size-medium);
    color: var(--text-color);
    transition: var(--transition-fast);
    margin-right: var(--spacing-md);
}

.theme-toggle:hover {
    color: var(--primary-color);
    transform: rotate(30deg);
}

/* ======== الأقسام الرئيسية ======== */
.section {
    padding: var(--spacing-xxl) var(--spacing-xl);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.section-title {
    font-size: var(--font-size-xxlarge);
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    color: var(--primary-color);
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    right: 50%;
    transform: translateX(50%);
    width: 100px;
    height: 3px;
    background-color: var(--accent-color);
}

.section-content {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
}

/* ======== قسم الرئيسية ======== */
#home {
    position: relative;
    padding-top: 120px;
}

.hero-content {
    flex: 1;
    z-index: 1;
}

.hero-content h1 {
    font-size: var(--font-size-xxlarge);
    font-weight: 900;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
    position: relative;
    overflow: hidden;
}

.hero-content h1 .highlight {
    color: var(--accent-color);
    position: relative;
    display: inline-block;
}

.hero-content h1 .highlight::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 8px;
    background-color: rgba(59, 130, 246, 0.3);
    z-index: -1;
    transform: skew(-15deg);
}

.hero-content h2 {
    font-size: var(--font-size-large);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
    opacity: 0;
    animation: fade-in-up 0.8s ease 0.5s forwards;
}

.hero-content p {
    font-size: var(--font-size-medium);
    margin-bottom: var(--spacing-xl);
    color: var(--text-light);
    opacity: 0;
    animation: fade-in-up 0.8s ease 0.7s forwards;
}

.hero-model {
    flex: 1;
    min-height: 400px;
    position: relative;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    opacity: 0;
    animation: fade-in-up 0.8s ease 0.9s forwards;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.tech-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--background-alt);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-small);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
    opacity: 0;
    transform: translateY(20px);
}

.tech-item:nth-child(1) {
    animation: fade-in-up 0.5s ease 1.1s forwards;
}

.tech-item:nth-child(2) {
    animation: fade-in-up 0.5s ease 1.2s forwards;
}

.tech-item:nth-child(3) {
    animation: fade-in-up 0.5s ease 1.3s forwards;
}

.tech-item:nth-child(4) {
    animation: fade-in-up 0.5s ease 1.4s forwards;
}

.tech-item:nth-child(5) {
    animation: fade-in-up 0.5s ease 1.5s forwards;
}

.tech-item:hover {
    transform: translateY(-5px);
    background-color: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-md);
}

.tech-item i {
    font-size: var(--font-size-medium);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    font-weight: 500;
    transition: var(--transition-fast);
    cursor: pointer;
    font-size: var(--font-size-normal);
}

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

.btn.primary:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn.secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn.secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* ======== قسم عني ======== */
#about .section-content {
    flex-direction: row-reverse;
}

.about-text {
    flex: 1;
}

.about-model {
    flex: 1;
    min-height: 400px;
    position: relative;
}

.about-text h3 {
    font-size: var(--font-size-large);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.about-text p {
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-medium);
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.skill-category {
    flex: 1;
    min-width: 250px;
}

.skill-category h4 {
    font-size: var(--font-size-medium);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--secondary-color);
}

.skill-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.skill-list li {
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--background-alt);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-small);
}

/* ======== قسم المشاريع ======== */
#projects .section-content {
    flex-direction: column;
}

.projects-gallery {
    width: 100%;
    height: 300px;
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.project-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    width: 100%;
}

.project-card {
    background-color: var(--background-alt);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.project-image {
    height: 200px;
    position: relative;
    overflow: hidden;
}

.project-model {
    width: 100%;
    height: 100%;
}

.project-info {
    padding: var(--spacing-lg);
}

.project-info h3 {
    font-size: var(--font-size-medium);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.project-info p {
    font-size: var(--font-size-normal);
    margin-bottom: var(--spacing-md);
    color: var(--text-light);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.project-tech span {
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--primary-color);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-small);
}

/* ======== قسم الخدمات ======== */
.services-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    width: 100%;
}

.service-card {
    background-color: var(--background-alt);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    height: 100px;
    margin: 0 auto var(--spacing-lg);
    position: relative;
}

.service-card h3 {
    font-size: var(--font-size-medium);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.service-card p {
    font-size: var(--font-size-normal);
    color: var(--text-light);
}

/* ======== قسم اتصل بي ======== */
#contact .section-content {
    flex-direction: column;
}

.contact-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    width: 100%;
}

.contact-methods {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.contact-method {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--background-alt);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    min-width: 200px;
}

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

.contact-method i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.contact-method h3 {
    font-size: var(--font-size-medium);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-full);
    background-color: var(--primary-color);
    color: white;
    font-size: var(--font-size-medium);
    transition: var(--transition-fast);
}

.social-link:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px) rotate(10deg);
}

.contact-form {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background-color: var(--background-color);
    color: var(--text-color);
    font-family: var(--font-family);
    font-size: var(--font-size-normal);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* ======== قسم السيرة الذاتية ======== */
#resume .section-content {
    justify-content: center;
    text-align: center;
}

.resume-content {
    flex: 1;
    max-width: 600px;
}

.resume-content p {
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-medium);
}

.download-btn {
    display: inline-flex;
    gap: var(--spacing-sm);
}

.resume-model {
    flex: 1;
    min-height: 300px;
    position: relative;
}

/* ======== الفوتر ======== */
footer {
    background-color: var(--background-alt);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    gap: var(--spacing-xl);
}

.footer-logo h2 {
    font-size: var(--font-size-large);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.footer-logo p {
    color: var(--text-light);
}

.footer-links h3,
.footer-social h3 {
    font-size: var(--font-size-medium);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links ul li a {
    color: var(--text-light);
    transition: var(--transition-fast);
}

.footer-links ul li a:hover {
    color: var(--primary-color);
    padding-right: var(--spacing-xs);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    color: var(--text-light);
    font-size: var(--font-size-small);
}

/* ======== التصميم المتجاوب ======== */
@media (max-width: 1024px) {
    .section-content {
        flex-direction: column;
    }
    
    #about .section-content {
        flex-direction: column;
    }
    
    .about-model, .hero-model, .resume-model {
        margin-top: var(--spacing-xl);
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-xxlarge: 2.5rem;
        --font-size-xlarge: 1.75rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        flex-direction: column;
        background-color: var(--background-color);
        width: 100%;
        text-align: center;
        box-shadow: var(--shadow-md);
        padding: var(--spacing-lg) 0;
        transition: var(--transition-normal);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .project-list, .services-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-xxlarge: 2rem;
        --font-size-xlarge: 1.5rem;
        --font-size-large: 1.25rem;
    }
    
    .section {
        padding: var(--spacing-xl) var(--spacing-md);
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .contact-methods {
        flex-direction: column;
    }
}