/* ==========================================================================
   CSS Stylesheet - Modern Glassmorphism Portfolio
   ========================================================================== */

:root {
    --bg-primary: #0a0f1d;
    --bg-secondary: #0f172a;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-blue: #38bdf8;
    --accent-indigo: #6366f1;
    --accent-emerald: #10b981;
    --card-bg: rgba(15, 23, 42, 0.65);
    --card-border: rgba(255, 255, 255, 0.08);
    --nav-bg: rgba(10, 15, 29, 0.85);
    --shadow-soft: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
    --bg-primary: #f8fafc;
    --bg-secondary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent-blue: #0284c7;
    --accent-indigo: #4f46e5;
    --accent-emerald: #059669;
    --card-bg: rgba(255, 255, 255, 0.75);
    --card-border: rgba(15, 23, 42, 0.08);
    --nav-bg: rgba(248, 250, 252, 0.85);
    --shadow-soft: 0 10px 30px -10px rgba(0, 0, 0, 0.1);
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
    transition: background-color 0.4s ease, color 0.4s ease;
    position: relative;
}

/* Background Glowing Orbs */
.bg-gradient-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -3;
    opacity: 0.25;
    pointer-events: none;
}
.orb-1 {
    width: 450px;
    height: 450px;
    top: -50px;
    right: -100px;
    background: radial-gradient(circle, var(--accent-indigo), transparent);
}
.orb-2 {
    width: 400px;
    height: 400px;
    bottom: 10%;
    left: -100px;
    background: radial-gradient(circle, var(--accent-blue), transparent);
}
.bg-grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 32px 32px;
    z-index: -2;
    pointer-events: none;
}

/* ==========================================================================
   Interactive Background Effects (Mouse Spotlight & Particle Canvas)
   ========================================================================== */
#particleCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
}

.mouse-glow {
    position: fixed;
    width: 480px;
    height: 480px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.14) 0%, rgba(99, 102, 241, 0.06) 45%, transparent 70%);
    filter: blur(40px);
    pointer-events: none;
    z-index: -1;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

[data-theme="light"] .mouse-glow {
    background: radial-gradient(circle, rgba(2, 132, 199, 0.12) 0%, rgba(79, 70, 229, 0.05) 45%, transparent 70%);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Typography & Utilities */
.text-gradient {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-indigo));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.glass-panel {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    box-shadow: var(--shadow-soft);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-indigo));
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(56, 189, 248, 0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(56, 189, 248, 0.45);
}
.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--card-border);
}
.btn-outline:hover {
    background: var(--card-bg);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}
.btn-block {
    width: 100%;
    justify-content: center;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--nav-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
    z-index: 1000;
    transition: var(--transition);
}
.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    max-width: 1200px;
    margin: 0 auto;
}
.logo {
    font-size: 1.4rem;
    font-weight: 900;
    text-decoration: none;
    color: var(--text-primary);
}
.logo-accent {
    color: var(--accent-blue);
}
.nav-links {
    display: flex;
    list-style: none;
    gap: 28px;
    align-items: center;
}
.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
}
.nav-link:hover {
    color: var(--accent-blue);
}
.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}
.theme-btn, .mobile-toggle {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}
.mobile-toggle {
    display: none;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 90px;
}
.hero-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 50px;
    align-items: center;
}
.badge-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(16, 185, 129, 0.1);
    color: var(--accent-emerald);
    border: 1px solid rgba(16, 185, 129, 0.25);
    padding: 6px 14px;
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 20px;
}
.status-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-emerald);
    border-radius: 50%;
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}
.hero-title {
    font-size: 2.8rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 12px;
}
.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    font-weight: 600;
    margin-bottom: 20px;
}
.hero-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 30px;
}
.hero-cta {
    display: flex;
    gap: 15px;
    margin-bottom: 30px;
}
.social-links {
    display: flex;
    gap: 14px;
}
.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}
.social-links a:hover {
    color: var(--accent-blue);
    border-color: var(--accent-blue);
    transform: translateY(-3px);
}

/* Profile Card */
.profile-card-glass {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    border-radius: 28px;
    padding: 38px 26px 28px;
    text-align: center;
    box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.4);
    position: relative;
    overflow: visible;
    transition: var(--transition);
}
.profile-card-glass:hover {
    transform: translateY(-5px);
    border-color: rgba(56, 189, 248, 0.3);
    box-shadow: 0 25px 50px -12px rgba(56, 189, 248, 0.2);
}

.avatar-container {
    position: relative;
    width: 170px;
    height: 170px;
    margin: 0 auto 24px;
}

.avatar-glow {
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-indigo));
    border-radius: 50%;
    filter: blur(14px);
    opacity: 0.5;
    z-index: 0;
    transition: var(--transition);
}
.profile-card-glass:hover .avatar-glow {
    opacity: 0.8;
    filter: blur(18px);
}

.avatar-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    padding: 4px;
    background: linear-gradient(135deg, var(--accent-blue), #818cf8, var(--accent-indigo));
    z-index: 1;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    display: block;
    background-color: var(--bg-secondary);
    transition: transform 0.4s ease;
}
.profile-card-glass:hover .profile-img {
    transform: scale(1.05);
}

.avatar-badge {
    position: absolute;
    bottom: 6px;
    left: 10px;
    background: var(--bg-primary);
    border: 2px solid var(--accent-blue);
    color: var(--accent-blue);
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    z-index: 2;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
}

.profile-info {
    margin-bottom: 22px;
}
.profile-name {
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 4px;
}
.profile-title {
    font-size: 0.88rem;
    color: var(--accent-blue);
    font-weight: 600;
}

.quick-stats {
    display: flex;
    justify-content: space-around;
    align-items: center;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--card-border);
    padding: 14px 10px;
    border-radius: 16px;
}
.stat-item {
    display: flex;
    flex-direction: column;
}
.stat-number {
    font-weight: 800;
    font-size: 1.05rem;
    color: var(--accent-blue);
}
.stat-label {
    font-size: 0.72rem;
    color: var(--text-secondary);
    margin-top: 2px;
}
.stat-divider {
    width: 1px;
    height: 26px;
    background: var(--card-border);
}

/* Sections Global */
.section {
    padding: 90px 0;
}
.section-header {
    text-align: center;
    margin-bottom: 50px;
}
.section-tag {
    color: var(--accent-blue);
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 8px;
}
.section-title {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 12px;
}
.section-line {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-indigo));
    margin: 0 auto;
    border-radius: 2px;
}

/* About Cards */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}
.about-card {
    padding: 35px 25px;
    transition: var(--transition);
}
.about-card:hover {
    transform: translateY(-6px);
    border-color: rgba(56, 189, 248, 0.3);
}
.about-card .card-icon {
    font-size: 2.2rem;
    color: var(--accent-blue);
    margin-bottom: 20px;
}
.about-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    font-weight: 700;
}
.about-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Skills */
.skills-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
    gap: 24px;
}
.skill-category {
    padding: 28px 22px;
}
.skill-category h3 {
    font-size: 1.15rem;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--accent-blue);
}
.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.skill-tag {
    background: rgba(56, 189, 248, 0.08);
    color: var(--text-primary);
    border: 1px solid var(--card-border);
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--transition);
}
.skill-tag:hover {
    background: rgba(56, 189, 248, 0.18);
    border-color: var(--accent-blue);
}

/* Timeline */
.timeline-container {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-right: 30px;
    border-right: 2px solid var(--card-border);
}
.timeline-item {
    position: relative;
    margin-bottom: 40px;
}
.timeline-dot {
    position: absolute;
    right: -37px;
    top: 5px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent-blue);
    box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.2);
}
.timeline-card {
    padding: 24px 28px;
}
.timeline-date {
    display: inline-block;
    color: var(--accent-blue);
    font-weight: 700;
    font-size: 0.85rem;
    margin-bottom: 6px;
}
.timeline-role {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 4px;
}
.timeline-company {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 12px;
}
.timeline-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Projects */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
}
.project-card {
    padding: 30px 25px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition);
}
.project-card:hover {
    transform: translateY(-5px);
    border-color: rgba(56, 189, 248, 0.35);
}
.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
}
.project-icon {
    font-size: 2rem;
    color: var(--accent-blue);
}
.project-badge {
    background: rgba(99, 102, 241, 0.15);
    color: var(--accent-indigo);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
}
.project-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 10px;
}
.project-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 20px;
}
.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.project-tech span {
    font-size: 0.78rem;
    color: var(--accent-blue);
    background: rgba(56, 189, 248, 0.1);
    padding: 4px 10px;
    border-radius: 6px;
}

/* Contact Section */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 35px;
}
.contact-info {
    padding: 35px 30px;
}
.contact-info h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
}
.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 25px;
}
.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
}
.contact-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(56, 189, 248, 0.1);
    color: var(--accent-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}
.contact-item h4 {
    font-size: 0.9rem;
    color: var(--text-secondary);
}
.contact-item p {
    font-weight: 600;
    margin-bottom: 0;
    color: var(--text-primary);
}

.contact-form {
    padding: 35px 30px;
}
.form-group {
    margin-bottom: 18px;
}
.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 6px;
}
.form-group input, .form-group textarea {
    width: 100%;
    padding: 12px 14px;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition);
}
.form-group input:focus, .form-group textarea:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}
.form-feedback {
    margin-top: 15px;
    font-size: 0.9rem;
    text-align: center;
    display: none;
}

/* Footer */
.footer {
    border-top: 1px solid var(--card-border);
    padding: 30px 0;
    margin-top: 50px;
}
.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}
.footer-links {
    display: flex;
    gap: 20px;
}
.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}
.footer-links a:hover {
    color: var(--accent-blue);
}

/* Responsive */
@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-cta, .social-links {
        justify-content: center;
    }
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--bg-primary);
        flex-direction: column;
        padding: 25px;
        gap: 18px;
        border-bottom: 1px solid var(--card-border);
        display: none;
    }
    .nav-links.active {
        display: flex;
    }
    .mobile-toggle {
        display: block;
    }
    .hero-title {
        font-size: 2.1rem;
    }
    .footer-content {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}