/* ===========================================
   Base Styles - Shared across all designs
   =========================================== */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

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

img {
    max-width: 100%;
    height: auto;
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 6px;
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn i {
    transition: transform 0.3s ease;
}

.btn:hover i {
    transform: translateX(4px);
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-divider {
    width: 60px;
    height: 4px;
    margin: 0 auto 20px;
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
    opacity: 0.8;
}

/* Design Switcher */
.design-switcher {
    position: fixed;
    top: 100px;
    right: 20px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    padding: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.design-switcher:hover {
    transform: translateX(-5px);
}

.switcher-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    font-weight: 600;
    color: #333;
}

.switcher-header i {
    color: #6366f1;
}

.switcher-options {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.design-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: transparent;
    font-family: inherit;
}

.design-option:hover {
    background: rgba(0, 0, 0, 0.05);
}

.design-option.active {
    border-color: #6366f1;
    background: rgba(99, 102, 241, 0.1);
}

.option-preview {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    border: 2px solid rgba(0, 0, 0, 0.1);
}

.dark-preview {
    background: linear-gradient(135deg, #1a1a2e 50%, #16213e 50%);
}

.light-preview {
    background: linear-gradient(135deg, #ffffff 50%, #f8f9fa 50%);
}

.gradient-preview {
    background: linear-gradient(135deg, #667eea 50%, #764ba2 50%);
}

.option-label {
    font-size: 0.9rem;
    color: #333;
}

/* Navigation */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
    padding: 15px 0;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-text {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 8px;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-link {
    font-weight: 500;
    position: relative;
    padding: 5px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    transition: width 0.3s ease;
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 100px 20px;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

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

.hero-greeting {
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-name {
    font-size: 3.5rem;
    margin-bottom: 10px;
    line-height: 1.1;
}

.hero-title {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 20px;
    opacity: 0.9;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 30px;
    max-width: 500px;
    opacity: 0.85;
}

.hero-cta {
    display: flex;
    gap: 15px;
    margin-bottom: 30px;
}

.hero-social {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    font-size: 1.2rem;
}

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

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 0.8s ease-out;
}

.image-wrapper {
    position: relative;
    width: 400px;
    height: 400px;
}

.image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    position: relative;
    z-index: 2;
}

.image-decoration {
    position: absolute;
    top: 20px;
    left: 20px;
    right: -20px;
    bottom: -20px;
    border-radius: 50%;
    z-index: 1;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: 1;
}

/* About Section */
.about {
    padding: 100px 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-intro {
    font-size: 1.1rem;
    margin-bottom: 30px;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    border-radius: 10px;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.highlight-card {
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
}

.highlight-card:hover {
    transform: translateY(-5px);
}

.highlight-card i {
    font-size: 2rem;
    margin-bottom: 15px;
}

.highlight-card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.highlight-card p {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Projects Section */
.projects {
    padding: 100px 0;
}

.project-filters {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    border: none;
    border-radius: 25px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    background: transparent;
    font-family: inherit;
}

.filter-btn.active {
    transform: scale(1.05);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.project-card {
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
}

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

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

.project-overlay {
    position: absolute;
    top: 15px;
    left: 15px;
    z-index: 2;
}

.project-category {
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.project-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3rem;
    opacity: 0.8;
}

.project-content {
    padding: 25px;
}

.project-title {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.project-description {
    font-size: 0.95rem;
    opacity: 0.8;
    margin-bottom: 15px;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.tech-tag {
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.project-details-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: none;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
    padding: 0;
}

.project-details-btn:hover {
    gap: 12px;
}

/* Project Modal */
.project-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.project-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    max-width: 800px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    border-radius: 16px;
    padding: 40px;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.project-modal.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.modal-close:hover {
    transform: rotate(90deg);
}

.modal-header {
    margin-bottom: 30px;
}

.modal-title {
    font-size: 2rem;
    margin-bottom: 10px;
}

.modal-category {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
}

.modal-body h4 {
    font-size: 1.2rem;
    margin: 20px 0 10px;
}

.modal-body ul {
    margin-left: 20px;
    list-style: disc;
}

.modal-body li {
    margin-bottom: 8px;
    opacity: 0.9;
}

.modal-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

/* Skills Section */
.skills {
    padding: 100px 0;
}

.skills-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.skills-category {
    font-size: 1.3rem;
    margin-bottom: 25px;
    padding-bottom: 10px;
}

.skill-item {
    margin-bottom: 20px;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
}

.skill-name {
    font-weight: 500;
}

.skill-percent {
    opacity: 0.7;
}

.skill-bar {
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    border-radius: 4px;
    width: 0;
    transition: width 1s ease-out;
}

/* Contact Section */
.contact {
    padding: 100px 0;
}

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

.contact-info-center {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
}

.contact-info-center .contact-item {
    flex: 1 1 160px;
    max-width: 200px;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 0;
    padding: 25px 20px;
    border-radius: 12px;
    transition: all 0.3s ease;
    border: 1px solid rgba(0,0,0,0.06);
    background: rgba(255,255,255,0.5);
}

.contact-info-center .contact-item:hover {
    transform: translateY(-5px);
    border-color: rgba(0,0,0,0.12);
    box-shadow: 0 8px 25px rgba(0,0,0,0.06);
}

.contact-info-center .contact-item i {
    font-size: 2rem;
    margin-top: 0;
    margin-bottom: 12px;
}

.contact-info-center .contact-item h4 {
    font-size: 1rem;
    margin-bottom: 8px;
}

.contact-info-center .contact-item span {
    font-size: 0.85rem;
    word-break: break-word;
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.contact-item i {
    font-size: 1.5rem;
    margin-top: 5px;
}

.contact-item h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.contact-form .form-group {
    position: relative;
    margin-bottom: 25px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 15px;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.contact-form label {
    position: absolute;
    left: 15px;
    top: 15px;
    transition: all 0.3s ease;
    pointer-events: none;
}

.contact-form input:focus + label,
.contact-form input:valid + label,
.contact-form textarea:focus + label,
.contact-form textarea:valid + label {
    top: -10px;
    font-size: 0.85rem;
    padding: 2px 8px;
    border-radius: 4px;
}

/* Footer */
.footer {
    padding: 40px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 20px;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    display: inline-block;
    padding: 8px 16px;
    border-radius: 8px;
    margin-bottom: 10px;
}

.footer-brand p {
    opacity: 0.7;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    font-size: 1.3rem;
    transition: transform 0.3s ease;
}

.footer-links a:hover {
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    opacity: 0.6;
    font-size: 0.9rem;
}

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Responsive */
@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        order: 2;
    }

    .hero-image {
        order: 1;
    }

    .hero-description {
        margin: 0 auto 30px;
    }

    .hero-cta,
    .hero-social {
        justify-content: center;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .skills-content {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .nav-links {
        display: none;
    }

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

    .design-switcher {
        top: auto;
        bottom: 20px;
        right: 20px;
    }
}

@media (max-width: 768px) {
    .hero-name {
        font-size: 2.5rem;
    }

    .image-wrapper {
        width: 280px;
        height: 280px;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .about-highlights {
        grid-template-columns: 1fr;
    }

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

    .footer-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}