/* 
   Main Stylesheet for Mazen Shaar's Portfolio
   Author: Manus AI
   Date: April 2, 2025
*/

/* ===== VARIABLES ===== */
:root {
    /* Colors */
    --primary-color: #4a6baf;
    --primary-dark: #3a5590;
    --primary-light: #7790c9;
    --secondary-color: #6c63ff;
    --accent-color: #ff6b6b;
    --text-color: #333333;
    --text-light: #666666;
    --bg-color: #ffffff;
    --bg-light: #f8f9fa;
    --bg-dark: #e9ecef;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --border-color: #dee2e6;
    
    /* Typography */
    --font-primary: 'Roboto', sans-serif;
    --font-heading: 'Montserrat', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 1rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
}

/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--bg-color);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
}

p {
    margin-bottom: var(--spacing-md);
}

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

a:hover {
    color: var(--primary-dark);
}

ul, ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-xl);
    position: relative;
    padding-bottom: var(--spacing-md);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: var(--border-radius-sm);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    font-size: 1rem;
}

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

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

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

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

/* ===== HEADER & NAVIGATION ===== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--bg-color);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-normal);
}

header.scrolled {
    box-shadow: var(--shadow-md);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    margin-bottom: 0;
    padding-left: 0;
}

.nav-menu li {
    margin-left: var(--spacing-lg);
}

.nav-menu a {
    color: var(--text-color);
    font-weight: 500;
    position: relative;
}

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

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

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

/* ===== HERO SECTION ===== */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
    color: white;
    text-align: center;
    padding-top: 80px; /* Account for fixed header */
}

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

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-sm);
    color: white;
}

.hero h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
    color: rgba(255, 255, 255, 0.9);
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    color: rgba(255, 255, 255, 0.9);
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

/* ===== ABOUT SECTION ===== */
.about {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-light);
}

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

.about-text {
    flex: 1;
}

.about-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-placeholder {
    width: 300px;
    height: 300px;
    background-color: var(--bg-dark);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 5rem;
    color: var(--primary-color);
}

.about-details {
    margin-top: var(--spacing-lg);
}

.detail {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.detail i {
    margin-right: var(--spacing-sm);
    color: var(--primary-color);
}

/* ===== SKILLS SECTION ===== */
.skills {
    padding: var(--spacing-xl) 0;
}

.skills-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.skill-category {
    margin-bottom: var(--spacing-lg);
}

.skill-category h3 {
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

.skill-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.skill-name {
    font-weight: 500;
}

.skill-level {
    height: 8px;
    background-color: var(--bg-dark);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    border-radius: var(--border-radius-sm);
}

.skill-percent {
    font-size: 0.875rem;
    color: var(--text-light);
    align-self: flex-end;
}

.expert .skill-progress {
    width: 95%;
    background-color: var(--success-color);
}

.advanced .skill-progress {
    width: 85%;
    background-color: var(--primary-color);
}

.intermediate .skill-progress {
    width: 70%;
    background-color: var(--secondary-color);
}

.proficient .skill-progress {
    width: 80%;
    background-color: var(--primary-light);
}

/* ===== PROJECTS SECTION ===== */
.projects {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-light);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

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

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

.project-header {
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.project-header h3 {
    margin-bottom: 0;
    font-size: 1.25rem;
}

.project-links {
    display: flex;
    gap: var(--spacing-sm);
}

.project-link {
    font-size: 1.25rem;
    color: var(--text-light);
    transition: color var(--transition-fast);
}

.project-link:hover {
    color: var(--primary-color);
}

.project-body {
    padding: var(--spacing-md);
}

.project-image {
    margin-bottom: var(--spacing-md);
    height: 180px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--bg-light);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
}

.project-image .image-placeholder {
    width: 100%;
    height: 100%;
    border-radius: 0;
    background-color: var(--bg-dark);
    font-size: 3rem;
}

.project-description {
    margin-bottom: var(--spacing-md);
    font-size: 0.95rem;
}

.project-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--text-light);
}

.meta-item {
    display: flex;
    align-items: center;
}

.meta-item i {
    margin-right: var(--spacing-xs);
}

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

.tech-tag {
    padding: 0.25rem 0.5rem;
    background-color: var(--bg-light);
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
}

/* ===== CONTACT SECTION ===== */
.contact {
    padding: var(--spacing-xl) 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.contact-item h3 {
    margin-bottom: var(--spacing-xs);
    font-size: 1.25rem;
}

.contact-form {
    background-color: var(--bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
}

.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: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* ===== FOOTER ===== */
footer {
    background-color: #2c3e50;
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo h2 {
    color: white;
    margin-bottom: var(--spacing-xs);
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 0;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: white;
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    font-size: 1.25rem;
    transition: background-color var(--transition-fast);
}

.footer-social a:hover {
    background-color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 992px) {
    html {
        font-size: 15px;
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: var(--bg-color);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: var(--spacing-lg);
        transition: left var(--transition-normal);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin-left: 0;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero h2 {
        font-size: 1.5rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .skills-content {
        grid-template-columns: 1fr;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.8s ease forwards;
}

/* ===== RESUME & CV PAGES ===== */
.resume-page, .cv-page {
    padding: 120px 0 var(--spacing-xl);
}

.resume-container, .cv-container {
    max-width: 900px;
    margin: 0 auto;
    background-color: white;
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border-radius: var(--border-radius-md);
}

.resume-header, .cv-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.resume-header h1, .cv-header h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.resume-contact, .cv-contact {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    font-size: 0.95rem;
}

.resume-section, .cv-section {
    margin-bottom: var(--spacing-xl);
}

.resume-section h2, .cv-section h2 {
    font-size: 1.75rem;
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.resume-item, .cv-item {
    margin-bottom: var(--spacing-lg);
}

.resume-item h3, .cv-item h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.resume-item h4, .cv-item h4 {
    font-size: 1rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.resume-item p, .cv-item p {
    font-size: 0.95rem;
}

.resume-skills, .cv-skills {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.print-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--primary-color);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.25rem;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.print-btn:hover {
    background-color: var(--primary-dark);
}

@media print {
    .print-btn {
        display: none;
    }
    
    header, footer {
        display: none;
    }
    
    .resume-page, .cv-page {
        padding: 0;
    }
    
    .resume-container, .cv-container {
        box-shadow: none;
        max-width: 100%;
    }
}