/* 
  Professional Portfolio Design System
  Amir Adel Eid Bassiouni
*/

:root {
    /* Color Palette - Dark Mode (Default) */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-alt: #172033;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-primary: #38bdf8;
    --accent-secondary: #818cf8;
    --accent-hover: #0ea5e9;
    --border-color: rgba(255, 255, 255, 0.1);
    --card-bg: rgba(30, 41, 59, 0.7);
    --glass-bg: rgba(30, 41, 59, 0.8);
    --shadow: 0 10px 30px -10px rgba(2, 6, 23, 0.7);
    --nav-height: 80px;
}

[data-theme="light"] {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-alt: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent-primary: #0284c7;
    --accent-secondary: #4f46e5;
    --accent-hover: #0369a1;
    --border-color: rgba(0, 0, 0, 0.1);
    --card-bg: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.8);
    --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.1);
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
    letter-spacing: -0.01em;
}

li {
    list-style: none;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

img {
    max-width: 100%;
    display: block;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

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

.section-padding {
    padding: 100px 0;
}

.bg-alt {
    background-color: var(--bg-alt);
}

/* Typography */
h1,
h2,
h3,
h4 {
    font-family: 'Poppins', sans-serif;
    line-height: 1.2;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
}

.title-underline {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    margin: 0 auto;
    border-radius: 2px;
}

/* Navbar */
.navbar {
    height: var(--nav-height);
    width: 100%;
    position: fixed;
    top: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    background-color: transparent;
    transition: 0.3s ease;
}

.navbar.scrolled {
    background-color: var(--glass-bg);
    backdrop-filter: blur(10px);
    height: 70px;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-main {
    height: 62px;
    width: auto;
    object-fit: contain;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.logo-main:hover {
    transform: translateY(-2px) scale(1.03);
    border-color: var(--accent-primary);
    box-shadow: 0 15px 30px rgba(56, 189, 248, 0.2);
}

.navbar.scrolled .logo-main {
    height: 48px;
}

/* Theme-aware Logo Toggling */
[data-theme="dark"] .logo-light {
    display: none;
}

[data-theme="light"] .logo-dark {
    display: none;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

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

.nav-links a:hover {
    color: var(--accent-primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

#theme-toggle {
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    transition: 0.3s;
}

#theme-toggle:hover {
    color: var(--accent-primary);
    transform: rotate(15deg);
}

.theme-icon-light {
    display: none;
}

[data-theme="light"] .theme-icon-light {
    display: block;
}

[data-theme="light"] .theme-icon-dark {
    display: none;
}

.mobile-menu-btn {
    display: none;
    color: var(--text-primary);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: var(--nav-height);
    background: radial-gradient(circle at 10% 20%, rgba(56, 189, 248, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(129, 140, 248, 0.05) 0%, transparent 40%);
}

.hero-title {
    font-size: clamp(3rem, 10vw, 5rem);
    margin-bottom: 1rem;
    font-weight: 800;
    color: var(--accent-primary);
    text-shadow: 0 0 20px rgba(56, 189, 248, 0.2);
}

.hero-role {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.hero-description {
    max-width: 600px;
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

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

.btn {
    padding: 0.8rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    transition: 0.3s;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px -5px rgba(56, 189, 248, 0.4);
}

.btn-secondary {
    border: 1px solid var(--accent-primary);
    color: var(--accent-primary);
}

.btn-secondary:hover {
    background: rgba(56, 189, 248, 0.1);
    transform: translateY(-3px);
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
}

.mouse {
    width: 25px;
    height: 45px;
    border: 2px solid var(--text-secondary);
    border-radius: 20px;
    position: relative;
}

.mouse::before {
    content: '';
    width: 4px;
    height: 8px;
    background: var(--accent-primary);
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 10px;
    border-radius: 2px;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% {
        transform: translate(-50%, 0);
        opacity: 1;
    }

    100% {
        transform: translate(-50%, 15px);
        opacity: 0;
    }
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    position: relative;
    padding: 20px;
}

.about-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 2px solid var(--accent-primary);
    border-radius: 30px;
    opacity: 0.3;
    z-index: -1;
}

.image-wrapper {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    aspect-ratio: 4/5;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    transition: 0.5s ease;
}

.image-wrapper:hover {
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    box-shadow: 0 30px 60px rgba(56, 189, 248, 0.2);
}

.image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}

.image-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 60%, rgba(15, 23, 42, 0.4));
    pointer-events: none;
}

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

.career-objective {
    margin-top: 2rem;
    padding: 2rem;
    background: var(--bg-secondary);
    border-radius: 15px;
    border-left: 4px solid var(--accent-primary);
}

.career-objective h3 {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

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

.skill-category {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: 0.3s;
}

.skill-category:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow);
}

.skill-category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    color: var(--accent-primary);
}

.skill-category-header i {
    width: 28px;
    height: 28px;
}

.skill-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.skill-list li {
    background: var(--bg-alt);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--bg-secondary);
    padding: 3rem 2rem;
    border-radius: 20px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: 0.3s;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-primary);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: rgba(56, 189, 248, 0.1);
    color: var(--accent-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 15px;
    margin: 0 auto 1.5rem;
}

.service-card h3 {
    margin-bottom: 1rem;
}

.service-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* Projects */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.project-card {
    background: var(--bg-secondary);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: 0.3s;
}

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

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

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: 0.5s;
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: 0.3s;
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-link {
    width: 50px;
    height: 50px;
    background: var(--accent-primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.project-info {
    padding: 2rem;
}

.project-info h3 {
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}

.project-info p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.project-tags {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.project-tags span {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-primary);
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
}

/* Graphic Design */
.design-title-font {
    font-family: 'Playfair Display', serif;
    font-weight: 900;
    font-size: 3.5rem;
    letter-spacing: -0.01em;
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-primary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 20px;
}

.premium-frame {
    position: relative;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: 40px;
    box-shadow: 0 50px 100px rgba(0, 0, 0, 0.6);
    margin: 2rem 0;
}

.premium-frame::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(45deg, var(--accent-primary), transparent, var(--accent-secondary));
    border-radius: 42px;
    z-index: -1;
    opacity: 0.3;
}

/* Artistic Frame Corners */
.premium-frame::after {
    content: '';
    position: absolute;
    top: -10px;
    right: -10px;
    width: 80px;
    height: 80px;
    border-top: 5px solid var(--accent-primary);
    border-right: 5px solid var(--accent-primary);
    border-radius: 0 30px 0 0;
    pointer-events: none;
}

.featured-image {
    height: 650px;
    border-radius: 30px;
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 0 50px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
}

.featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 1.2s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.premium-frame:hover .featured-image img {
    transform: scale(1.08);
}

@media (max-width: 768px) {
    .design-title-font {
        font-size: 2.8rem;
    }

    .featured-image {
        height: 400px;
    }

    .featured-text h3 {
        font-size: 1.8rem;
    }
}

/* Experience */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--border-color);
}

.timeline-item {
    width: 100%;
    margin-bottom: 60px;
    position: relative;
}

.timeline-dot {
    width: 16px;
    height: 16px;
    background: var(--accent-primary);
    border-radius: 50%;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 0;
    z-index: 10;
    box-shadow: 0 0 0 5px var(--bg-primary);
}

.timeline-date {
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
}

.timeline-content {
    width: 45%;
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: auto;
}

.text-right {
    text-align: left;
}

/* Fixed logic in CSS flow */

/* Contact */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.contact-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin: 1.5rem 0 2.5rem;
}

.social-links {
    display: flex;
    gap: 1.2rem;
}

.social-icon {
    width: 45px;
    height: 45px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: 0.3s;
}

.social-icon:hover {
    background: var(--accent-primary);
    color: #fff;
    transform: translateY(-5px);
}

.contact-form {
    background: var(--bg-secondary);
    padding: 3rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: var(--bg-alt);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    outline: none;
    transition: 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent-primary);
}

.w-full {
    width: 100%;
}

/* Footer */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
    background: var(--bg-primary);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.scroll-top {
    width: 40px;
    height: 40px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--accent-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Animations State */
.fade-in {
    opacity: 0;
    animation: fadeIn 1s forwards;
}

.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: 0.8s ease-out;
}

.reveal-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: 0.8s ease-out;
}

.reveal-right {
    opacity: 0;
    transform: translateX(50px);
    transition: 0.8s ease-out;
}

.active {
    opacity: 1 !important;
    transform: none !important;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

/* Responsive */
@media (max-width: 992px) {

    .about-grid,
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .timeline::before {
        left: 40px;
    }

    .timeline-dot {
        left: 40px;
    }

    .timeline-content {
        width: calc(100% - 80px);
        margin-left: 80px !important;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero {
        text-align: center;
    }

    .hero-ctas {
        justify-content: center;
    }

    .hero-description {
        margin: 0 auto 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }
}

/* Mobile Menu */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateY(-100%);
    transition: 0.5s ease-in-out;
}

.mobile-menu-overlay.open {
    transform: translateY(0);
}

.mobile-nav-links {
    text-align: center;
}

.mobile-nav-links li {
    margin: 2rem 0;
}

.mobile-nav-links a {
    font-size: 2rem;
    font-weight: 700;
}