/*===== VARIABLES =====*/
:root {
    /* Light mode colors */
    --primary-color: #2563eb;
    --secondary-color: #4b5563;
    --background-color: #ffffff;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --border-color: #e5e7eb;
    --card-bg: #f9fafb;
    --header-bg: rgba(255, 255, 255, 0.95);
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    --hover-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
    
    /* Font sizes */
    --fs-xl: 3rem;
    --fs-lg: 2.25rem;
    --fs-md: 1.5rem;
    --fs-sm: 1.125rem;
    --fs-xs: 0.875rem;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border radius */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 1rem;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* Dark mode colors */
.dark-mode {
    --primary-color: #3b82f6;
    --secondary-color: #9ca3af;
    --background-color: #111827;
    --text-color: #f9fafb;
    --text-light: #d1d5db;
    --border-color: #374151;
    --card-bg: #1f2937;
    --header-bg: rgba(17, 24, 39, 0.95);
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    --hover-shadow: 0 10px 15px rgba(0, 0, 0, 0.3);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    transition: var(--transition);
}

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

a:hover {
    color: var(--secondary-color);
}

ul {
    list-style: none;
}

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.section {
    padding: var(--spacing-xl) 0;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.8s ease;
}

.section.revealed {
    opacity: 1;
    transform: translateY(0);
}

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

.section-header h2 {
    font-size: var(--fs-lg);
    margin-bottom: var(--spacing-xs);
    color: var(--text-color);
}

.underline {
    height: 4px;
    width: 60px;
    background-color: var(--primary-color);
    margin: 0 auto;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    animation: glow-pulse 2s infinite;
}

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

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: var(--fs-xs);
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    box-shadow: 0 0 10px rgba(37, 99, 235, 0.1);
}

.btn-primary::after {
    background: rgba(255, 255, 255, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-color);
    opacity: 0.9;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.4);
}

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.highlight {
    color: var(--primary-color);
}

/*===== HEADER =====*/
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--header-bg);
    box-shadow: var(--shadow);
    padding: var(--spacing-sm) 0;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

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

.logo h1 {
    font-size: var(--fs-md);
    font-weight: 700;
    color: var(--text-color);
}

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

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--text-color);
    font-weight: 500;
    position: relative;
    padding: var(--spacing-xs) 0;
}

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

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

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.theme-toggle {
    margin-left: var(--spacing-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--card-bg);
    transition: var(--transition);
}

.theme-toggle:hover {
    background-color: var(--border-color);
}

.theme-toggle i {
    font-size: var(--fs-sm);
    color: var(--text-color);
}

.light-mode .fa-sun {
    display: none;
}

.light-mode .fa-moon {
    display: block;
}

.dark-mode .fa-sun {
    display: block;
}

.dark-mode .fa-moon {
    display: none;
}

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--text-color);
    transition: var(--transition);
}

/*===== HERO SECTION =====*/
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background-color: var(--background-color);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(17, 24, 39, 0.05) 100%);
    z-index: 0;
}

.animated-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-content h2 {
    font-size: var(--fs-xl);
    margin-bottom: var(--spacing-xs);
    color: var(--text-color);
}

.hero-content h3 {
    font-size: var(--fs-md);
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.hero-content p {
    font-size: var(--fs-sm);
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

/*===== ABOUT SECTION =====*/
.about {
    background-color: var(--card-bg);
}

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

.about-img {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.about-img img {
    width: 100%;
    height: auto;
    object-fit: cover;
    transition: var(--transition);
}

.about-img img:hover {
    transform: scale(1.05);
}

.about-text p {
    margin-bottom: var(--spacing-md);
    color: var(--text-light);
}

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

.skills h3 {
    font-size: var(--fs-sm);
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
    text-align: center;
}

.skill-circles {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.skill-circle {
    position: relative;
    width: 150px;
    height: 150px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.skill-circle svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.skill-circle-bg {
    fill: none;
    stroke: var(--border-color);
    stroke-width: 8;
}

.skill-circle-progress {
    fill: none;
    stroke: var(--primary-color);
    stroke-width: 8;
    stroke-linecap: round;
    stroke-dasharray: 283;
    stroke-dashoffset: 283;
    transition: stroke-dashoffset 1.5s ease;
}

.skill-name-circle {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.db-text {
  font-weight: bold;
}

.management-text {
  margin-top: 2px;
}


.skill-percentage-circle {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* Hide the old skill bars */
.skill-bars {
    display: none;
}

.achievements {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.achievements h3 {
    font-size: var(--fs-sm);
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.achievement {
    background-color: var(--card-bg);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.achievement-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.achievement-label {
    font-size: var(--fs-xs);
    color: var(--text-light);
}

/*===== CERTIFICATIONS SECTION (New) =====*/

.certifications-section {
    background-color: var(--background-color);
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.certification-card {
    background-color: var(--card-bg);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
    border-top: 5px solid var(--primary-color);
}

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

.cert-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.certification-card h3 {
    font-size: var(--fs-sm);
    color: var(--text-color);
    margin-bottom: var(--spacing-xs);
}

.certification-card p {
    font-size: var(--fs-xs);
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    min-height: 40px; /* Ensures consistent card height */
}

.cert-issuer {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
}

/* Responsive adjustment for small screens */
@media screen and (max-width: 576px) {
    .certifications-grid {
        grid-template-columns: 1fr;
    }
}


/*===== PROJECTS SECTION =====*/

.project-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.filter-btn {
    background-color: var(--card-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 0.5rem 1rem;
    font-size: var(--fs-xs);
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover, 
.filter-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.project-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    opacity: 1;
    transform: scale(1);
}

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

.project-card.hide {
    display: none;
}

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

.project-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

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

.project-content h3 {
    font-size: var(--fs-sm);
    margin-bottom: var(--spacing-xs);
    color: var(--text-color);
}

.project-content p {
    font-size: var(--fs-xs);
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.project-tags span {
    font-size: 0.75rem;
    background-color: var(--border-color);
    color: var(--text-color);
    padding: 0.25rem 0.5rem;
    border-radius: var(--border-radius-sm);
}

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



/*===== RESUME SECTION =====*/
.resume {
    background-color: var(--card-bg);
    text-align: center;
}

.resume-content {
    max-width: 600px;
    margin: 0 auto;
}

.resume-content p {
    margin-bottom: var(--spacing-md);
    color: var(--text-light);
}

/*===== CONTACT SECTION =====*/
.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;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-md);
    background-color: var(--card-bg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

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

.contact-item h3 {
    font-size: var(--fs-sm);
    margin-bottom: var(--spacing-xs);
    color: var(--text-color);
}

.contact-item p {
    font-size: var(--fs-xs);
    color: var(--text-light);
}

.contact-form {
    background-color: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: var(--fs-xs);
    color: var(--text-color);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background-color: var(--background-color);
    color: var(--text-color);
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

.error-message {
    color: #ef4444;
    font-size: 0.75rem;
    margin-top: 0.25rem;
    display: none;
}

/*===== FOOTER =====*/
.footer {
    background-color: var(--card-bg);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--background-color);
    color: var(--text-color);
    transition: var(--transition);
}

.social-link:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-5px);
}

.copyright {
    margin-top: var(--spacing-md);
    color: var(--text-light);
}

.rounded-btn {
    border-radius: 50px;
    padding: 0.75rem 2rem;
    margin-top: var(--spacing-md);
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.2);
}

.rounded-btn::after {
    animation: glow-pulse 1.5s infinite;
    background: rgba(255, 255, 255, 0.4);
}

.rounded-btn:hover {
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
}

/*===== MEDIA QUERIES =====*/
@media screen and (max-width: 992px) {
    :root {
        --fs-xl: 2.5rem;
        --fs-lg: 2rem;
        --fs-md: 1.25rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .about-img {
        max-width: 400px;
        margin: 0 auto;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .contact-info {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .contact-item {
        flex: 1 1 200px;
    }
}

@media screen and (max-width: 768px) {
    .hamburger {
        display: block;
    }
    
    .theme-toggle {
        margin-right: var(--spacing-lg);
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        flex-direction: column;
        background-color: var(--card-bg);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow);
        padding: var(--spacing-lg) 0;
        gap: var(--spacing-lg);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
}

@media screen and (max-width: 576px) {
    :root {
        --fs-xl: 2rem;
        --fs-lg: 1.75rem;
        --fs-md: 1.2rem;
        --fs-sm: 1rem;
    }
    
    .hero-btns {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .section {
        padding: var(--spacing-lg) 0;
    }
    
    .contact-item {
        flex: 0 0 100%;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .achievements-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
}

/* Add to .no-scroll class for mobile menu */
.no-scroll {
    overflow: hidden;
}

/*===== LOADER =====*/
.loader-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--background-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader {
    width: 60px;
    height: 60px;
    border: 5px solid var(--border-color);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.loader-hidden {
    opacity: 0;
    visibility: hidden;
}

/*===== SCROLL PROGRESS BAR =====*/
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    background-color: var(--primary-color);
    width: 0;
    z-index: 1001;
    transition: width 0.1s ease;
}

/*===== TESTIMONIALS SECTION =====*/
.testimonials {
    background-color: var(--background-color);
}

.testimonials-container {
    max-width: 800px;
    margin: 0 auto;
}

.testimonial-wrapper {
    position: relative;
    height: 280px;
    overflow: hidden;
}

.testimonial {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transform: translateX(100px);
    transition: all 0.5s ease;
    pointer-events: none;
}

.testimonial.active {
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
}

.testimonial-content {
    background-color: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.quote {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.testimonial-content p {
    flex: 1;
    color: var(--text-light);
    font-style: italic;
    line-height: 1.8;
}

.testimonial-info {
    margin-top: var(--spacing-md);
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.testimonial-info h4 {
    font-size: var(--fs-sm);
    color: var(--text-color);
    margin-bottom: 0.25rem;
}

.testimonial-info p {
    font-size: var(--fs-xs);
    color: var(--text-light);
    font-style: normal;
}

.testimonial-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: var(--spacing-md);
}

.testimonial-dots {
    display: flex;
    gap: 0.5rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background-color: var(--primary-color);
}

.testimonial-arrows {
    display: flex;
    gap: var(--spacing-sm);
    margin-left: var(--spacing-md);
}

.arrow {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--card-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.arrow:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/*===== BUSINESS CARD =====*/
.business-card-container {
    max-width: 400px;
    margin: 0 auto var(--spacing-xl);
    text-align: center;
}

.business-card {
    width: 100%;
    height: 220px;
    position: relative;
    perspective: 1000px;
    margin-bottom: var(--spacing-md);
}

.business-card-front,
.business-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    transition: transform 0.8s ease;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.business-card-front {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1e3a8a 100%);
    color: white;
    transform: rotateY(0deg);
}

.business-card-back {
    background-color: var(--card-bg);
    color: var(--text-color);
    transform: rotateY(180deg);
}

.business-card:hover .business-card-front {
    transform: rotateY(180deg);
}

.business-card:hover .business-card-back {
    transform: rotateY(0deg);
}

.business-card-logo {
    width: 60px;
    height: 60px;
    background-color: white;
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.business-card-front h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.business-card-title {
    font-size: 1rem;
    opacity: 0.8;
}

.business-card-info {
    width: 100%;
    margin-bottom: var(--spacing-md);
}

.business-card-item {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-xs);
    color: var(--text-color);
}

.business-card-item i {
    color: var(--primary-color);
    margin-right: var(--spacing-xs);
    width: 20px;
}

.business-card-item p {
    font-size: 0.85rem;
}

.business-card-social {
    display: flex;
    gap: var(--spacing-sm);
}

.business-card-social a {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition);
}

.business-card-social a:hover {
    transform: translateY(-3px);
    background-color: var(--secondary-color);
}

.download-card {
    margin-top: var(--spacing-sm);
}

/*===== TIMELINE SECTION =====*/
.timeline-section {
    background-color: var(--background-color);
    padding: var(--spacing-xl) 0;
}

/*===== TIMELINE =====*/
.timeline-container {
    margin: var(--spacing-lg) 0;
    position: relative;
}

.timeline-container::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background-color: var(--primary-color);
    opacity: 0.3;
}

.timeline {
    position: relative;
}

.timeline-item {
    display: flex;
    justify-content: flex-end;
    padding-right: 30px;
    position: relative;
    margin-bottom: var(--spacing-lg);
    width: 50%;
}

.timeline-item:nth-child(even) {
    align-self: flex-end;
    justify-content: flex-start;
    padding-left: 30px;
    padding-right: 0;
    margin-left: auto;
}

.timeline-item-content {
    background-color: var(--card-bg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    padding: var(--spacing-md);
    position: relative;
    width: 100%;
    max-width: 400px;
    transition: var(--transition);
}

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

.timeline-item-content::after {
    content: '';
    position: absolute;
    top: calc(50% - 10px);
    right: -10px;
    width: 0;
    height: 0;
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    border-left: 10px solid var(--card-bg);
}

.timeline-item:nth-child(even) .timeline-item-content::after {
    right: auto;
    left: -10px;
    border-left: none;
    border-right: 10px solid var(--card-bg);
}

.timeline-item-date {
    font-size: var(--fs-xs);
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.timeline-item-title {
    font-size: var(--fs-sm);
    margin-bottom: var(--spacing-xs);
    color: var(--text-color);
    font-weight: 600;
}

.timeline-item-subtitle {
    font-size: var(--fs-xs);
    margin-bottom: var(--spacing-xs);
    color: var(--text-light);
    font-style: italic;
}

.timeline-item-description {
    font-size: var(--fs-xs);
    color: var(--text-light);
    line-height: 1.5;
}

.timeline-dot {
    background-color: var(--primary-color);
    width: 16px;
    height: 16px;
    border-radius: 50%;
    position: absolute;
    top: calc(50% - 8px);
    right: -8px;
    z-index: 1;
}

.timeline-item:nth-child(even) .timeline-dot {
    right: auto;
    left: -8px;
}

.timeline-category {
    position: absolute;
    top: -10px;
    left: var(--spacing-sm);
    font-size: 0.7rem;
    background-color: var(--primary-color);
    color: white;
    padding: 2px 8px;
    border-radius: var(--border-radius-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

@media screen and (max-width: 768px) {
    .timeline-container::before {
        left: 20px;
    }
    
    .timeline-item {
        width: 100%;
        padding-left: 60px;
        padding-right: 0;
        justify-content: flex-start;
    }
    
    .timeline-item:nth-child(even) {
        padding-left: 60px;
        padding-right: 0;
    }
    
    .timeline-dot {
        left: 12px;
        right: auto;
    }
    
    .timeline-item:nth-child(even) .timeline-dot {
        left: 12px;
    }
    
    .timeline-item-content::after,
    .timeline-item:nth-child(even) .timeline-item-content::after {
        left: -10px;
        right: auto;
        border-left: none;
        border-right: 10px solid var(--card-bg);
    }
}

/*===== ACHIEVEMENTS SECTION =====*/
.achievements-section {
    background-color: var(--card-bg);
    padding: var(--spacing-xl) 0;
}

.achievements-container {
    max-width: 900px;
    margin: 0 auto;
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.achievement {
    background-color: var(--background-color);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.achievement-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.achievement-label {
    font-size: var(--fs-xs);
    color: var(--text-light);
}

@media screen and (max-width: 992px) {
    .achievements-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 576px) {
    .achievements-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
}

/* Color variations for skill circles */
.skill-circle[data-skill="fullstack"] .skill-circle-progress {
    stroke: #3b82f6;
}

.skill-circle[data-skill="video"] .skill-circle-progress {
    stroke: #10b981;
}

.skill-circle[data-skill="vibe"] .skill-circle-progress {
    stroke: #8b5cf6;
}

.skill-circle[data-skill="photo"] .skill-circle-progress {
    stroke: #f59e0b;
}

.skill-circle[data-skill="fullstack"] .skill-percentage-circle {
    color: #3b82f6;
}

.skill-circle[data-skill="video"] .skill-percentage-circle {
    color: #10b981;
}

.skill-circle[data-skill="vibe"] .skill-percentage-circle {
    color: #8b5cf6;
}

.skill-circle[data-skill="photo"] .skill-percentage-circle {
    color: #f59e0b;
}