/* ===========================
   CSS Variables & Reset
   =========================== */
:root {
    /* Modern Color Palette */
    --primary-color: #2D6A4F;
    --primary-dark: #1B4332;
    --primary-light: #40916C;
    --accent-color: #F4A261;
    --accent-dark: #E76F51;
    
    --text-primary: #1A1A1A;
    --text-secondary: #4A4A4A;
    --text-light: #757575;
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8F9FA;
    --bg-dark: #0A0F0D;
    
    /* Typography */
    --font-primary: 'Outfit', sans-serif;
    --font-secondary: 'Archivo', sans-serif;
    
    /* Spacing */
    --section-padding: 100px 0;
    --card-padding: 30px;
    
    /* Effects */
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

/* ===========================
   Navigation
   =========================== */
.navbar {
    padding: 20px 0;
    background: transparent;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(10, 15, 13, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    padding: 15px 0;
}

.navbar-brand .brand-text {
    font-size: 28px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-light), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    margin: 0 15px;
    position: relative;
    transition: var(--transition);
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: var(--transition);
}

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

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

/* ===========================
   Hero Section
   =========================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, #0A0F0D 0%, #1B4332 100%);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(64, 145, 108, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(244, 162, 97, 0.08) 0%, transparent 50%);
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-greeting {
    font-size: 18px;
    color: var(--accent-color);
    font-weight: 500;
    margin-bottom: 10px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hero-name {
    font-size: 64px;
    font-weight: 800;
    color: #FFFFFF;
    margin-bottom: 20px;
    line-height: 1.1;
}

.hero-roles {
    font-size: 32px;
    font-weight: 600;
    color: var(--primary-light);
    margin-bottom: 30px;
    min-height: 50px;
}

.typed-text {
    color: var(--accent-color);
}

.cursor {
    display: inline-block;
    width: 3px;
    background-color: var(--accent-color);
    animation: blink 0.7s infinite;
}

@keyframes blink {
    0%, 49% { opacity: 1; }
    50%, 100% { opacity: 0; }
}

.hero-description {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    max-width: 550px;
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.btn-primary-custom {
    background: var(--accent-color);
    color: #FFFFFF;
    padding: 14px 35px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid var(--accent-color);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary-custom:hover {
    background: transparent;
    color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(244, 162, 97, 0.3);
}

.btn-outline-custom {
    background: transparent;
    color: #FFFFFF;
    padding: 14px 35px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition);
}

.btn-outline-custom:hover {
    border-color: var(--primary-light);
    color: var(--primary-light);
    transform: translateY(-2px);
}

.hero-social {
    display: flex;
    gap: 20px;
}

.hero-social a {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    font-size: 20px;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.hero-social a:hover {
    background: var(--accent-color);
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(244, 162, 97, 0.4);
}

.hero-image-container {
    position: relative;
    z-index: 2;
}

.hero-image-wrapper {
    position: relative;
    width: 400px;
    height: 400px;
    margin: 0 auto;
}

.hero-image-wrapper::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: 20px;
    bottom: 20px;
    background: linear-gradient(135deg, var(--accent-color), var(--primary-light));
    border-radius: 50%;
    z-index: -1;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.3;
    }
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: 5px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-lg);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
}

.scroll-indicator a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 30px;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* ===========================
   Section Styling
   =========================== */
section {
    padding: var(--section-padding);
}

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

.section-number {
    font-size: 18px;
    color: var(--accent-color);
    font-weight: 700;
    font-family: var(--font-secondary);
}

.section-title {
    font-size: 42px;
    font-weight: 800;
    color: var(--text-primary);
    margin-top: 10px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--primary-light));
    border-radius: 2px;
}

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

.about-content p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.about-content .lead {
    font-size: 22px;
    font-weight: 500;
    color: var(--text-primary);
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: #FFFFFF;
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.highlight-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.highlight-item i {
    font-size: 32px;
    color: var(--accent-color);
}

.highlight-item h4 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.highlight-item p {
    font-size: 14px;
    color: var(--text-light);
    margin: 0;
}

.quick-info {
    background: #FFFFFF;
    padding: var(--card-padding);
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    height: 100%;
}

.quick-info h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 25px;
    color: var(--text-primary);
}

.info-list {
    list-style: none;
}

.info-list li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    font-size: 16px;
    color: var(--text-secondary);
}

.info-list i {
    font-size: 22px;
    color: var(--primary-color);
}

/* ===========================
   Skills Section
   =========================== */
.skills-section {
    background: #FFFFFF;
}

.skill-category {
    background: var(--bg-secondary);
    padding: var(--card-padding);
    border-radius: 20px;
    height: 100%;
    transition: var(--transition);
}

.skill-category:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-5px);
}

.category-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.category-title i {
    color: var(--accent-color);
}

.skill-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 15px;
}

.skill-item {
    background: #FFFFFF;
    padding: 15px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition);
    border: 2px solid transparent;
}

.skill-item:hover {
    border-color: var(--primary-light);
    transform: translateX(5px);
}

.skill-item i {
    font-size: 24px;
    color: var(--primary-color);
}

.skill-item span {
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 14px;
}

.soft-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
}

.soft-skill-badge {
    padding: 10px 20px;
    background: var(--bg-secondary);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    border: 2px solid transparent;
}

.soft-skill-badge:hover {
    background: var(--primary-light);
    color: #FFFFFF;
    border-color: var(--primary-light);
}

/* Featured AI & Machine Learning Integration category */
.featured-category {
    position: relative;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    border: 2px solid var(--accent-color);
    overflow: hidden;
}

.featured-category:hover {
    box-shadow: 0 10px 40px rgba(244, 162, 97, 0.25);
}

.featured-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--accent-color);
    color: #FFFFFF;
    font-size: 12px;
    font-weight: 700;
    padding: 6px 16px;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.featured-category .category-title {
    color: #FFFFFF;
}

.featured-category .category-title i {
    color: var(--accent-color);
}

.featured-category .skill-item {
    background: rgba(255, 255, 255, 0.08);
    border: 2px solid transparent;
}

.featured-category .skill-item i {
    color: var(--accent-color);
}

.featured-category .skill-item span {
    color: #FFFFFF;
}

.featured-category .skill-item:hover {
    border-color: var(--accent-color);
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(5px);
}

/* ===========================
   Experience Section
   =========================== */
.experience-section {
    background: var(--bg-secondary);
}

.timeline {
    position: relative;
    padding-left: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--accent-color), var(--primary-light));
}

.timeline-item {
    position: relative;
    padding-left: 50px;
    margin-bottom: 60px;
}

.timeline-marker {
    position: absolute;
    left: -8px;
    top: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-color);
    border: 4px solid var(--bg-secondary);
    box-shadow: 0 0 0 4px rgba(244, 162, 97, 0.2);
}

.timeline-content {
    background: #FFFFFF;
    padding: var(--card-padding);
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.timeline-content:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(10px);
}

.timeline-date {
    font-size: 14px;
    color: var(--accent-dark);
    font-weight: 600;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.timeline-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.timeline-company {
    font-size: 18px;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 15px;
}

.timeline-description {
    margin-bottom: 20px;
    padding-left: 20px;
}

.timeline-description li {
    margin-bottom: 8px;
    color: var(--text-secondary);
    line-height: 1.6;
}

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

.timeline-tags span {
    padding: 6px 15px;
    background: var(--bg-secondary);
    border-radius: 50px;
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===========================
   Education Section
   =========================== */
.education-section {
    background: #FFFFFF;
}

.education-card {
    background: var(--bg-secondary);
    padding: var(--card-padding);
    border-radius: 20px;
    height: 100%;
    transition: var(--transition);
    border: 2px solid transparent;
}

.education-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-5px);
}

.education-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.education-icon i {
    font-size: 28px;
    color: #FFFFFF;
}

.education-date {
    font-size: 14px;
    color: var(--accent-dark);
    font-weight: 600;
    margin-bottom: 10px;
    text-transform: uppercase;
}

.education-degree {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.education-school {
    font-size: 16px;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 15px;
}

.education-highlights {
    padding-left: 20px;
}

.education-highlights li {
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.certifications-wrapper {
    margin-top: 60px;
    padding: 40px;
    background: var(--bg-secondary);
    border-radius: 20px;
}

.certifications-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 30px;
    color: var(--text-primary);
}

.certification-item {
    background: #FFFFFF;
    padding: 20px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: var(--transition);
    height: 100%;
}

.certification-item:hover {
    box-shadow: var(--shadow-sm);
    transform: translateY(-3px);
}

.certification-item i {
    font-size: 28px;
    color: var(--accent-color);
}

.certification-item h5 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.certification-item p {
    font-size: 13px;
    color: var(--text-light);
    margin: 0;
}

/* ===========================
   Projects Section
   =========================== */
.projects-section {
    background: var(--bg-secondary);
}

.project-card {
    background: #FFFFFF;
    padding: var(--card-padding);
    border-radius: 20px;
    height: 100%;
    transition: var(--transition);
    border: 2px solid transparent;
}

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

.project-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-dark));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.project-icon i {
    font-size: 32px;
    color: #FFFFFF;
}

.project-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.7;
}

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

.project-tech span {
    padding: 6px 14px;
    background: var(--bg-secondary);
    border-radius: 50px;
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===========================
   Contact Section
   =========================== */
.contact-section {
    background: #FFFFFF;
}

.contact-intro {
    font-size: 20px;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 50px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.contact-item {
    background: var(--bg-secondary);
    padding: 30px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition);
}

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

.contact-item i {
    font-size: 32px;
    color: var(--accent-color);
}

.contact-item h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.contact-item a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

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

.contact-item p {
    margin: 0;
    color: var(--text-secondary);
}

.contact-social {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 25px;
    background: var(--bg-secondary);
    border-radius: 50px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-color);
    color: #FFFFFF;
    transform: translateY(-3px);
}

.social-link i {
    font-size: 20px;
}

.download-cv {
    text-align: center;
}

/* ===========================
   Footer
   =========================== */
.footer {
    background: var(--bg-dark);
    padding: 40px 0;
    text-align: center;
}

.footer-content p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 15px;
}

.footer-links a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-light);
}

/* ===========================
   Responsive Design
   =========================== */
@media (max-width: 992px) {
    .hero-name {
        font-size: 48px;
    }
    
    .hero-roles {
        font-size: 24px;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .hero-image-wrapper {
        width: 300px;
        height: 300px;
        margin-top: 40px;
    }
    
    .timeline {
        padding-left: 20px;
    }
    
    .timeline-item {
        padding-left: 40px;
    }
}

@media (max-width: 768px) {
    section {
        padding: 60px 0;
    }
    
    .hero-name {
        font-size: 36px;
    }
    
    .hero-roles {
        font-size: 20px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .about-highlights {
        grid-template-columns: 1fr;
    }
    
    .skill-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .navbar-brand .brand-text {
        font-size: 24px;
    }
    
    .hero-name {
        font-size: 28px;
    }
    
    .hero-description {
        font-size: 16px;
    }
    
    .btn-primary-custom,
    .btn-outline-custom {
        padding: 12px 25px;
        font-size: 14px;
    }
    
    .skill-grid {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}