/* Base Styles */
:root {
    --primary-color: #4A90E2;
    --secondary-color: #7FB3D5;
    --background-color: #F5F9FC;
    --text-color: #2C3E50;
    --transition-speed: 0.3s;
    --border-radius: 12px;
    --box-shadow: 0 4px 6px rgba(74, 144, 226, 0.1);
    --gradient-primary: linear-gradient(135deg, #4A90E2, #7FB3D5);
    --gradient-secondary: linear-gradient(135deg, #F5F9FC, #E8F1F8);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 76px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 3rem);
    text-align: center;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2rem);
    text-align: center;
    margin-bottom: 2rem;
}

.lead {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(245, 249, 252, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 2px 10px rgba(74, 144, 226, 0.1);
    z-index: 1000;
    padding: 1rem 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
    transition: transform var(--transition-speed) ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    color: var(--primary-color);
    transition: transform var(--transition-speed) ease;
}

.logo-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo:hover {
    transform: scale(1.05);
}

.logo:hover .logo-icon {
    transform: rotate(15deg);
    color: var(--secondary-color);
}

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

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-speed) ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: all var(--transition-speed) ease;
    transform: translateX(-50%);
}

.nav-links a:hover::after {
    width: 80%;
}

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

/* Language Switcher */
.language-switcher {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.25rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    margin-left: 1rem;
}

.lang-btn {
    background: none;
    border: none;
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
    color: var(--text-color);
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    border-radius: 15px;
    font-weight: 500;
}

.lang-btn.active {
    background: var(--gradient-primary);
    color: white;
}

.lang-divider {
    width: 1px;
    height: 1rem;
    background: rgba(0, 0, 0, 0.1);
    margin: 0 0.25rem;
}

/* Hero Section */
.hero {
    padding: 8rem 0 4rem;
    background: var(--gradient-secondary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    background-size: 200% 200%;
    animation: gradientFlow 15s ease infinite;
    opacity: 0.1;
}

.subtitle {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    color: var(--secondary-color);
    margin-bottom: 2rem;
    text-align: center;
}

/* Buttons */
.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: all var(--transition-speed) ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(-100%);
    transition: transform var(--transition-speed) ease;
    z-index: -1;
}

.btn:hover::before {
    transform: translateX(0);
}

.btn-content {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-icon {
    transition: transform var(--transition-speed) ease;
}

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

.btn.primary {
    background: var(--gradient-primary);
    color: white;
    border: none;
}

.btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

.btn.secondary {
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn.secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* Sections */
.section {
    padding: 4rem 0;
}

.bg-light {
    background: var(--gradient-secondary);
}

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

.skill-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    text-align: center;
    transition: transform var(--transition-speed) ease;
    position: relative;
    overflow: hidden;
}

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

.skill-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    animation: pulse 2s ease-in-out infinite;
}

.skill-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.skill-card:hover::after {
    transform: scaleX(1);
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.card {
    border: none;
    border-radius: var(--border-radius);
    transition: all var(--transition-speed) ease;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--box-shadow);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.card-body {
    padding: 2rem;
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.project-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
    background-color: var(--background-color);
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-speed) ease;
    filter: brightness(0.95);
}

.card:hover .project-image img {
    transform: scale(1.05);
    filter: brightness(1);
}

.project-icon-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-icon-container i {
    font-size: 4rem;
    color: var(--primary-color);
    z-index: 2;
    transition: all var(--transition-speed) ease;
}

.project-icon-bg {
    position: absolute;
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: all var(--transition-speed) ease;
}

.card:hover .project-icon-container i {
    transform: scale(1.1);
    color: var(--secondary-color);
}

.card:hover .project-icon-bg {
    transform: scale(1.2);
    background: rgba(255, 255, 255, 0.15);
}

.project-icon {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background-color: rgba(255, 255, 255, 0.95);
    padding: 0.75rem;
    border-radius: 50%;
    box-shadow: var(--box-shadow);
    z-index: 1;
    color: var(--primary-color);
    text-decoration: none;
    transition: all var(--transition-speed) ease;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.project-icon:hover {
    transform: scale(1.1);
    background-color: white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.project-icon i {
    font-size: 1.25rem;
}

.project-tags {
    margin-top: 1rem;
}

.badge {
    padding: 0.5rem 0.75rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    background: var(--gradient-secondary);
    color: var(--text-color);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
}

/* Logo Carousel */
.logo-carousel {
    padding: 4rem 0;
    background: var(--gradient-secondary);
    overflow: hidden;
}

.carousel-track {
    display: flex;
    gap: 2rem;
    animation: scroll 30s linear infinite;
    padding: 2rem 0;
}

.carousel-item {
    flex: 0 0 auto;
    width: 160px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: var(--border-radius);
    padding: 1rem;
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease;
}

.carousel-item:hover {
    transform: translateY(-5px);
}

.carousel-item img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: all 0.3s ease;
}

.carousel-item:hover img {
    filter: grayscale(0%);
    opacity: 1;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-160px * 9)); /* Width of item * number of items */
    }
}

/* Pause animation on hover */
.carousel-track:hover {
    animation-play-state: paused;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .carousel-item {
        width: 120px;
        height: 60px;
    }
    
    @keyframes scroll {
        0% {
            transform: translateX(0);
        }
        100% {
            transform: translateX(calc(-120px * 9));
        }
    }
}

@media (max-width: 480px) {
    .carousel-item {
        width: 100px;
        height: 50px;
    }
    
    @keyframes scroll {
        0% {
            transform: translateX(0);
        }
        100% {
            transform: translateX(calc(-100px * 9));
        }
    }
}

/* Footer */
footer {
    background: var(--gradient-primary);
    color: white;
    padding: 2rem 0;
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23FFFFFF' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

footer p {
    position: relative;
    z-index: 1;
    margin: 0;
    font-weight: 500;
    text-align: center;
}

/* Profile Image */
.profile-image-container {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 0 auto;
    animation: float 6s ease-in-out infinite;
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: 4px solid white;
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease;
}

.profile-image:hover {
    transform: scale(1.05) rotate(5deg);
}

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

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

@keyframes gradientFlow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

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

@keyframes fadeInUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

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

/* Loading Animation */
.loading {
    position: fixed;
    inset: 0;
    background: var(--background-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loading.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--primary-color);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    z-index: 1001;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-color);
    position: relative;
    transition: all var(--transition-speed) ease;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--text-color);
    transition: all var(--transition-speed) ease;
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    bottom: -8px;
}

.mobile-menu-btn[aria-expanded="true"] .hamburger {
    background: transparent;
}

.mobile-menu-btn[aria-expanded="true"] .hamburger::before {
    transform: rotate(45deg);
    top: 0;
}

.mobile-menu-btn[aria-expanded="true"] .hamburger::after {
    transform: rotate(-45deg);
    bottom: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--background-color);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        padding: 5rem 2rem 2rem;
        display: flex;
        flex-direction: column;
        gap: 1.5rem;
        transition: right var(--transition-speed) ease;
        box-shadow: -4px 0 12px rgba(0, 0, 0, 0.1);
    }

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

    .nav-links a {
        font-size: 1.2rem;
        padding: 0.5rem 0;
    }

    .language-switcher {
        margin: 1rem 0;
        align-self: flex-start;
    }

    .cta-buttons {
        flex-direction: column;
        gap: 1rem;
    }

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

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

    .carousel-item {
        min-width: 150px;
        height: 80px;
        padding: 1rem;
    }

    .carousel-item img {
        max-height: 40px;
    }

    .logo-text {
        display: none;
    }

    .logo-icon {
        width: 24px;
        height: 24px;
    }

    .hero {
        padding: 6rem 0 3rem;
    }

    .profile-image-container {
        width: 150px;
        height: 150px;
    }

    .skill-card {
        padding: 1.5rem;
    }

    .card-body {
        padding: 1.5rem;
    }

    .share-container {
        margin: 1rem 0;
    }

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

/* Additional Mobile Optimizations */
@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1.1rem;
    }

    .section {
        padding: 3rem 0;
    }

    .skills-grid {
        gap: 1rem;
    }

    .badge {
        font-size: 0.75rem;
        padding: 0.35rem 0.5rem;
    }
}

/* Touch Device Optimizations */
@media (hover: none) {
    .card:hover,
    .skill-card:hover,
    .carousel-item:hover {
        transform: none;
    }

    .btn:hover {
        transform: none;
    }

    .nav-links a::after {
        display: none;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .cta-buttons {
        display: none;
    }
    
    body {
        color: black;
        background: white;
    }
    
    .section {
        page-break-inside: avoid;
    }
}

/* Share Button */
.share-container {
    position: relative;
    margin-left: 1rem;
}

.share-btn {
    background: none;
    border: none;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    color: var(--text-color);
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-radius: var(--border-radius);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.share-btn:hover {
    background: rgba(74, 144, 226, 0.1);
}

.share-btn i {
    font-size: 1rem;
    transition: transform var(--transition-speed) ease;
}

.share-btn:hover i {
    transform: rotate(15deg);
}

.share-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: 0.5rem;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-speed) ease;
    z-index: 1000;
}

.share-container:hover .share-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.share-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-color);
    text-decoration: none;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
    border-radius: calc(var(--border-radius) - 4px);
    transition: all var(--transition-speed) ease;
}

.share-option:hover {
    background: var(--gradient-secondary);
}

.share-option i {
    font-size: 1.25rem;
    color: var(--primary-color);
}

.share-option.copy-link i {
    color: var(--secondary-color);
}

@media (max-width: 768px) {
    .share-btn span {
        display: none;
    }
    
    .share-btn {
        padding: 0.35rem;
    }
    
    .share-menu {
        right: -1rem;
    }
}

/* Share button in hero section */
.hero .share-container {
    margin-top: 2rem;
    text-align: center;
}

.hero .share-btn {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--box-shadow);
}

.hero .share-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(74, 144, 226, 0.2);
}

.hero .share-btn i {
    font-size: 1.1rem;
}

.hero .share-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: 0.5rem;
    margin-top: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed) ease;
    z-index: 1000;
}

.hero .share-container:hover .share-menu {
    opacity: 1;
    visibility: visible;
}

.hero .share-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    color: var(--text-color);
    text-decoration: none;
    border-radius: 8px;
    transition: all var(--transition-speed) ease;
    white-space: nowrap;
}

.hero .share-option:hover {
    background: var(--gradient-secondary);
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .language-switcher {
        margin-left: 0.5rem;
    }

    .lang-btn {
        padding: 0.25rem 0.4rem;
        font-size: 0.75rem;
    }

    .hero .share-btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }

    .hero .share-menu {
        width: 90%;
        max-width: 300px;
    }
} 
}