/* ================================================
   Hussein Saab - Personal Portfolio
   Navy Theme with Editorial Minimalism
   ================================================ */

/* CSS Variables */
:root {
    /* Navy Color Palette */
    --navy-900: #0a192f;
    --navy-800: #112240;
    --navy-700: #1d3557;
    --navy-600: #233554;
    --navy-500: #2d4a6f;

    /* Accent Colors */
    --cream: #f8f4f0;
    --cream-light: #fdfcfa;
    --gold: #c9a962;
    --gold-light: #d4bc7c;

    /* Text Colors */
    --text-primary: #0a192f;
    --text-secondary: #4a5568;
    --text-light: #ccd6f6;
    --text-muted: #8892b0;

    /* Typography */
    --font-heading: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --section-padding: 120px;
    --container-max: 1200px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s ease;
    --transition-slow: 0.6s ease;
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    background: var(--navy-900);
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--cream-light);
    color: var(--text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html, body {
  overscroll-behavior-y: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: 1.2;
}

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

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* ================================================
   Navigation
   ================================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all var(--transition-medium);
}

.nav.scrolled {
    background: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(10px);
    padding: 12px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--cream);
    letter-spacing: 0.05em;
}

.nav-menu {
    display: flex;
    gap: 40px;
    list-style: none;
}

.nav-link {
    font-size: 0.875rem;
    color: var(--text-light);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    position: relative;
    padding: 4px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--gold);
    transition: width var(--transition-medium);
}

.nav-link:hover {
    color: var(--cream);
}

.nav-link:hover::after {
    width: 100%;
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--cream);
    transition: all var(--transition-fast);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ================================================
   Hero Section
   ================================================ */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--navy-900) 0%, var(--navy-800) 50%, var(--navy-700) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(201, 169, 98, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(201, 169, 98, 0.05) 0%, transparent 40%);
    pointer-events: none;
}

.hero-content {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    animation: fadeInUp 0.8s ease-out;
}

.hero-greeting {
    font-size: 1rem;
    color: var(--gold);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.hero-name {
    font-size: clamp(3rem, 8vw, 5rem);
    color: var(--cream);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    color: var(--text-light);
    margin-bottom: 8px;
    font-weight: 400;
}

.hero-subtitle {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 24px;
    letter-spacing: 0.02em;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 480px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-links {
    display: flex;
    gap: 20px;
    margin-bottom: 32px;
}

.hero-link {
    width: 48px;
    height: 48px;
    border: 1px solid rgba(204, 214, 246, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    transition: all var(--transition-fast);
}

.hero-link:hover {
    transform: translateY(-3px);
}

.hero-link svg {
    width: 20px;
    height: 20px;
}

/* GitHub - Black & White */
.hero-link-github {
    background: #ffffff;
    border-color: #ffffff;
    color: #181717;
}

.hero-link-github:hover {
    background: #181717;
    border-color: #181717;
    color: #ffffff;
}

/* LinkedIn - Blue & White */
.hero-link-linkedin {
    background: #0A66C2;
    border-color: #0A66C2;
    color: #ffffff;
}

.hero-link-linkedin:hover {
    background: #004182;
    border-color: #004182;
    color: #ffffff;
}

/* Email/Gmail - Red & White */
.hero-link-email {
    background: #EA4335;
    border-color: #EA4335;
    color: #ffffff;
}

.hero-link-email:hover {
    background: #c5221f;
    border-color: #c5221f;
    color: #ffffff;
}

/* Hero Image */
.hero-image {
    display: flex;
    justify-content: center;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-headshot {
    width: 360px;
    height: 360px;
    object-fit: cover;
    border-radius: 50%;
    border: 4px solid rgba(201, 169, 98, 0.3);
    box-shadow:
        0 0 0 20px rgba(201, 169, 98, 0.05),
        0 25px 50px rgba(0, 0, 0, 0.3);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--text-muted);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--gold), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.8); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* ================================================
   Buttons
   ================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary {
    background: var(--gold);
    color: var(--navy-900);
}

.btn-primary:hover {
    background: var(--gold-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(201, 169, 98, 0.3);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ================================================
   Sections
   ================================================ */
.section {
    padding: var(--section-padding) 0;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    color: var(--navy-900);
    margin-bottom: 60px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -16px;
    left: 0;
    width: 60px;
    height: 2px;
    background: var(--gold);
}

/* ================================================
   About Section
   ================================================ */
.about {
    background: var(--cream);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-content {
    max-width: 720px;
}

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

.about-photo {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(10, 25, 47, 0.15);
    object-fit: cover;
}

.about-text {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.8;
}

.about-contact {
    display: flex;
    gap: 48px;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid rgba(10, 25, 47, 0.1);
}

.about-contact-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.about-contact-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.about-contact-item a,
.about-contact-item span {
    font-size: 0.95rem;
    color: var(--navy-800);
}

.about-contact-item a:hover {
    color: var(--gold);
}

/* ================================================
   Experience Section
   ================================================ */
.experience {
    background: var(--cream-light);
}

.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, var(--gold), rgba(201, 169, 98, 0.2));
}

.timeline-item {
    position: relative;
    margin-bottom: 48px;
}

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

.timeline-marker {
    position: absolute;
    left: -44px;
    top: 8px;
    width: 9px;
    height: 9px;
    background: var(--gold);
    border-radius: 50%;
    border: 2px solid var(--cream-light);
}

.timeline-content {
    background: white;
    padding: 32px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(10, 25, 47, 0.06);
    transition: all var(--transition-fast);
}

.timeline-content:hover {
    box-shadow: 0 8px 40px rgba(10, 25, 47, 0.1);
    transform: translateY(-2px);
}

.experience-header {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.experience-logo {
    flex-shrink: 0;
}

/* Logo Placeholder - These will be replaced with actual images */
.logo-placeholder {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--navy-700), var(--navy-800));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--cream);
}

.logo-placeholder-lg {
    width: 80px;
    height: 80px;
    font-size: 1rem;
}

.experience-info {
    flex: 1;
}

.experience-title {
    font-size: 1.25rem;
    color: var(--navy-900);
    margin-bottom: 4px;
}

.experience-company {
    font-size: 1rem;
    color: var(--navy-700);
    font-weight: 500;
    margin-bottom: 4px;
}

.experience-meta {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.experience-details {
    list-style: none;
    padding-left: 0;
}

.experience-details li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 12px;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.experience-details li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 5px;
    height: 5px;
    background: var(--gold);
    border-radius: 50%;
}

.experience-details li:last-child {
    margin-bottom: 0;
}

/* ================================================
   Education Section
   ================================================ */
.education-section {
    background: var(--navy-900);
    color: var(--cream);
}

.education-section .section-title {
    color: var(--cream);
}

.education-section .section-title::after {
    background: var(--gold);
}

.education-card {
    display: flex;
    gap: 32px;
    align-items: flex-start;
    background: rgba(255, 255, 255, 0.03);
    padding: 40px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.education-logo .logo-placeholder {
    background: rgba(201, 169, 98, 0.15);
    border: 1px solid rgba(201, 169, 98, 0.3);
}

.education-school {
    font-size: 1.5rem;
    color: var(--cream);
    margin-bottom: 8px;
}

.education-degree {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 8px;
}

.education-dates {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.education-details {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}

.education-gpa,
.education-award {
    font-size: 0.875rem;
    color: var(--gold);
    padding: 8px 16px;
    background: rgba(201, 169, 98, 0.1);
    border-radius: 4px;
    border: 1px solid rgba(201, 169, 98, 0.2);
}

/* ================================================
   Project Section
   ================================================ */
.project {
    background: var(--cream);
}

.project-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 60px rgba(10, 25, 47, 0.08);
}

.project-image {
    height: 100%;
    min-height: 400px;
}

.project-placeholder {
    width: 100%;
    height: 100%;
    min-height: 400px;
    background: linear-gradient(135deg, var(--navy-800), var(--navy-700));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 1rem;
    letter-spacing: 0.05em;
}

.project-content {
    padding: 48px;
}

.project-title {
    font-size: 2rem;
    color: var(--navy-900);
    margin-bottom: 8px;
}

.project-subtitle {
    font-size: 1rem;
    color: var(--gold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 24px;
}

.project-description {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
}

.project-highlights {
    list-style: none;
    margin-bottom: 32px;
}

.project-highlights li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 12px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.project-highlights li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 5px;
    height: 5px;
    background: var(--gold);
    border-radius: 50%;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 32px;
}

.tech-tag {
    font-size: 0.75rem;
    color: var(--navy-700);
    padding: 6px 12px;
    background: rgba(10, 25, 47, 0.05);
    border-radius: 4px;
    letter-spacing: 0.02em;
}

.project-links {
    display: flex;
    gap: 16px;
}

/* ================================================
   Skills Section
   ================================================ */
.skills {
    background: var(--cream-light);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
}

.skill-category {
    background: white;
    padding: 32px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(10, 25, 47, 0.04);
}

.skill-category-title {
    font-size: 1rem;
    color: var(--navy-700);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(10, 25, 47, 0.08);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-tag {
    font-size: 0.875rem;
    color: var(--navy-800);
    padding: 8px 16px;
    background: var(--cream);
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.skill-tag:hover {
    background: var(--navy-800);
    color: var(--cream);
}

/* ================================================
   Contact Section
   ================================================ */
.contact {
    background: var(--navy-900);
    color: var(--cream);
}

.contact .section-title {
    color: var(--cream);
}

.contact-intro {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 600px;
    margin-bottom: 60px;
    opacity: 0.9;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-item svg {
    width: 24px;
    height: 24px;
    color: var(--gold);
    flex-shrink: 0;
    margin-top: 4px;
}

.contact-item > div {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.contact-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.contact-item a {
    font-size: 1rem;
    color: var(--text-light);
    transition: color var(--transition-fast);
}

.contact-item a:hover {
    color: var(--gold);
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.form-group input,
.form-group textarea {
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--cream);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--gold);
    background: rgba(255, 255, 255, 0.08);
}

.form-group textarea {
    resize: vertical;
    min-height: 140px;
}

/* ================================================
   Footer
   ================================================ */
.footer {
    background: var(--navy-900);
    padding: 40px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer p {
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ================================================
   Animations
   ================================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered animation for timeline items */
.timeline-item.fade-in:nth-child(1) { transition-delay: 0.1s; }
.timeline-item.fade-in:nth-child(2) { transition-delay: 0.2s; }
.timeline-item.fade-in:nth-child(3) { transition-delay: 0.3s; }
.timeline-item.fade-in:nth-child(4) { transition-delay: 0.4s; }

/* ================================================
   Responsive Design
   ================================================ */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
    }

    .hero-content {
        gap: 60px;
    }

    .hero-headshot {
        width: 300px;
        height: 300px;
    }

    .project-card {
        grid-template-columns: 1fr;
    }

    .project-image {
        order: -1;
        min-height: 300px;
    }

    .project-placeholder {
        min-height: 300px;
    }

    .skills-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
    }

    /* Mobile Navigation */
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--navy-800);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 32px;
        transition: right var(--transition-medium);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-link {
        font-size: 1rem;
    }

    /* Hero Mobile */
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-text {
        order: 2;
    }

    .hero-image {
        order: 1;
    }

    .hero-headshot {
        width: 200px;
        height: 200px;
    }

    .hero-name {
        font-size: 2.5rem;
    }

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

    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }

    .scroll-indicator {
        display: none;
    }

    /* About Mobile */
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-image {
        display: none;
    }

    .about-contact {
        flex-direction: column;
        gap: 24px;
    }

    /* Experience Mobile */
    .timeline {
        padding-left: 24px;
    }

    .timeline-marker {
        left: -28px;
    }

    .timeline-content {
        padding: 24px;
    }

    .experience-header {
        flex-direction: column;
        gap: 16px;
    }

    /* Education Mobile */
    .education-card {
        flex-direction: column;
        padding: 32px;
        text-align: center;
    }

    .education-details {
        justify-content: center;
    }

    /* Project Mobile */
    .project-content {
        padding: 32px;
    }

    .project-title {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero-name {
        font-size: 2rem;
    }

    .hero-title {
        font-size: 1.25rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .btn {
        padding: 12px 24px;
        font-size: 0.8rem;
    }

    .project-tech {
        gap: 6px;
    }

    .tech-tag {
        font-size: 0.7rem;
        padding: 4px 10px;
    }
}

/* ================================================
   Utility: Replace placeholders with images
   ================================================

   To replace logo placeholders with actual images:

   1. Find the logo-placeholder div:
      <div class="logo-placeholder" data-company="super">S</div>

   2. Replace it with an img tag:
      <img src="images/super-logo.png" alt="Super.com" class="company-logo">

   3. Add this CSS for company logos:
*/

.company-logo {
    width: 56px;
    height: 56px;
    object-fit: contain;
    border-radius: 8px;
}

.company-logo-lg {
    width: 80px;
    height: 80px;
}

/* Project image replacement */
.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}