/* Reset y configuración base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colores principales */
    --primary-bg: #fafafa;
    --secondary-bg: #ffffff;
    --tertiary-bg: #f5f5f7;
    --accent-green: #0B6623;
    --accent-green-hover: #228B22;
    --text-primary: #1d1d1f;
    --text-secondary: #6e6e73;
    --text-tertiary: #86868b;
    --border-light: #d2d2d7;
    --border-medium: #c1c1c6;
    --shadow-light: rgba(0, 0, 0, 0.04);
    --shadow-medium: rgba(0, 0, 0, 0.08);
    --shadow-heavy: rgba(0, 0, 0, 0.12);

    /* Tipografía */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;

    /* Espaciado */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    --spacing-24: 6rem;

    /* Animaciones */
    --transition-fast: 0.15s ease-out;
    --transition-normal: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
    --spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

html {
    scroll-behavior: smooth;
    height: 100%;
}

body {
    font-family: var(--font-family);
    background-color: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Contenedor principal que empuja el footer hacia abajo */
.main-content {
    flex: 1;
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--secondary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease-out, visibility 0.5s ease-out;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-content {
    text-align: center;
}

.loading-logo {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-green), #228B22);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: var(--font-size-xl);
    margin: 0 auto var(--spacing-4);
    animation: pulse 2s infinite;
}

.loading-text {
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--text-secondary);
}

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

    50% {
        transform: scale(1.05);
    }
}

/* Navigation */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(250, 250, 250, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(250, 250, 250, 0.95);
    box-shadow: 0 1px 0 var(--border-light);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

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

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    background: linear-gradient(135deg, #30d158, #34d399);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    transition: all 0.3s ease;
}

.logo-text:hover {
    background: linear-gradient(135deg, #28cd4f, #10b981);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-8);
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background: var(--accent-green);
    border-radius: 50%;
}

/* Language Toggle Styles */
.language-toggle {
    position: relative;
    display: flex;
    align-items: center;
    margin-left: var(--spacing-4);
}

.lang-toggle-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    background: var(--secondary-bg);
    border: 1px solid var(--border-light);
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: 20px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.lang-toggle-btn:hover {
    background: var(--tertiary-bg);
    border-color: var(--border-medium);
    color: var(--text-primary);
}

.lang-flag {
    font-size: 16px;
}

.lang-text {
    font-weight: 600;
    color: var(--text-primary);
}

.lang-arrow {
    width: 14px;
    height: 14px;
    transition: transform var(--transition-fast);
}

.lang-toggle-btn.active .lang-arrow {
    transform: rotate(180deg);
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: var(--spacing-1);
    background: var(--secondary-bg);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    box-shadow: 0 8px 25px var(--shadow-medium);
    backdrop-filter: blur(20px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
    z-index: 1001;
    min-width: 140px;
}

.lang-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Language Toggle Fixes */
.lang-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    width: calc(100% - var(--spacing-2));
    /* Ajuste para mantener margen */
    padding: var(--spacing-3) var(--spacing-4);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border-radius: 8px;
    margin: var(--spacing-1);
    text-align: left;
    /* Alineación a la izquierda para el texto */
}

.lang-option:hover {
    background: var(--tertiary-bg);
    color: var(--text-primary);
}

.lang-option.active {
    background: var(--accent-green);
    color: white;
}

.lang-option .lang-flag {
    font-size: 16px;
    flex-shrink: 0;
    /* Evita que la bandera se comprima */
}

.lang-option span:last-child {
    flex: 1;
    /* El texto toma el espacio restante */
    text-align: left;
    /* Alineación del texto */
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    width: 30px;
    height: 30px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1002;
}

.hamburger-line {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    margin: 2px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.mobile-menu-btn.active .hamburger-line:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.mobile-menu-btn.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active .hamburger-line:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.cta-button {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    background: var(--accent-green);
    color: white;
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: 20px;
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.cta-button:hover {
    background: var(--accent-green-hover);
    transform: translateY(-1px);
}

.cta-icon {
    width: 16px;
    height: 16px;
}

/* Language switching animations */
.lang-switching {
    opacity: 0.7;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.lang-switch-complete {
    opacity: 1;
    pointer-events: auto;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-6);
}

/* Sections */
.section {
    display: none;
    padding: var(--spacing-20) 0;
}

.section.active {
    display: block;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-16);
}

.section-label {
    display: inline-block;
    background: var(--tertiary-bg);
    color: var(--text-secondary);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: 20px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-4);
}

.section-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-6);
    line-height: 1.1;
}

.section-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.5;
}

/* Hero Section */
.hero-section {
    padding: var(--spacing-20) 0 var(--spacing-20);
}

.hero-content {
    text-align: center;
    margin-bottom: var(--spacing-16);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    background: var(--secondary-bg);
    border: 1px solid var(--border-light);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: 20px;
    margin-bottom: var(--spacing-8);
    box-shadow: 0 2px 8px var(--shadow-light);
}

.badge-text {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

.badge-indicator {
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-6);
    line-height: 1.1;
}

.highlight {
    background: linear-gradient(135deg, var(--accent-green), #228B22);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto var(--spacing-10);
    line-height: 1.6;
}

.hero-roles {
    display: flex;
    justify-content: center;
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-10);
    flex-wrap: wrap;
}

.role-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.role-icon {
    width: 20px;
    height: 20px;
    color: var(--accent-green);
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

.primary-button {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    background: var(--text-primary);
    color: white;
    padding: var(--spacing-4) var(--spacing-6);
    border-radius: 12px;
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-normal);
}

.primary-button:hover {
    background: #333;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.secondary-button {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    background: var(--secondary-bg);
    color: var(--text-primary);
    padding: var(--spacing-4) var(--spacing-6);
    border: 1px solid var(--border-medium);
    border-radius: 12px;
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-normal);
}

.secondary-button:hover {
    background: var(--tertiary-bg);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--shadow-light);
}

.button-icon {
    width: 20px;
    height: 20px;
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
}

.visual-card {
    background: var(--secondary-bg);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 60px var(--shadow-medium);
    max-width: 650px;
    width: 100%;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4) var(--spacing-6);
    background: var(--tertiary-bg);
    border-bottom: 1px solid var(--border-light);
}

.card-dots {
    display: flex;
    gap: var(--spacing-2);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border-medium);
}

.dot:nth-child(1) {
    background: #ff5f57;
}

.dot:nth-child(2) {
    background: #ffbd2e;
}

.dot:nth-child(3) {
    background: var(--accent-green);
}

.card-title {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.card-content {
    padding: var(--spacing-6);
    font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    font-size: var(--font-size-sm);
}

.terminal-line {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-2);
}

.prompt {
    color: var(--accent-green);
    font-weight: 600;
}

.command {
    color: var(--text-primary);
}

.terminal-output {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-3);
    margin-left: var(--spacing-6);
}

.status-available {
    color: var(--accent-green);
    font-weight: 500;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-16);
}

.about-card {
    background: var(--secondary-bg);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: var(--spacing-8);
    text-align: center;
    transition: all var(--transition-normal);
}

.about-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px var(--shadow-light);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-green), #34d399);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-4);
    color: white;
}

.about-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-3);
    color: var(--text-primary);
}

.about-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-6);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-6);
    background: var(--secondary-bg);
    border: 1px solid var(--border-light);
    border-radius: 16px;
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--accent-green);
    margin-bottom: var(--spacing-2);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-8);
}

.project-card {
    background: var(--secondary-bg);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 50px var(--shadow-medium);
}

.project-card.featured {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.project-image {
    aspect-ratio: 16/12;
    background: var(--tertiary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-8);
}

.project-preview {
    width: 100%;
    max-width: 300px;
}

.preview-browser {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.browser-bar {
    background: #f6f6f6;
    padding: var(--spacing-3);
    border-bottom: 1px solid #e0e0e0;
}

.browser-dots {
    display: flex;
    gap: var(--spacing-2);
}

.browser-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #ddd;
}

.browser-dots span:nth-child(1) {
    background: #ff5f57;
}

.browser-dots span:nth-child(2) {
    background: #ffbd2e;
}

.browser-dots span:nth-child(3) {
    background: var(--accent-green);
}

.browser-content {
    padding: var(--spacing-4);
    height: 200px;
}

.preview-dashboard {
    height: 100%;
}

.dashboard-header {
    height: 20px;
    background: var(--tertiary-bg);
    border-radius: 4px;
    margin-bottom: var(--spacing-4);
}

.dashboard-charts {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-4);
    height: calc(100% - 36px);
}

.chart-item {
    background: linear-gradient(135deg, var(--accent-green), #34d399);
    border-radius: 8px;
    opacity: 0.8;
}

.preview-phone {
    width: 150px;
    height: 300px;
    background: #333;
    border-radius: 20px;
    padding: var(--spacing-3);
    margin: 0 auto;
}

.phone-screen {
    background: white;
    border-radius: 16px;
    height: 100%;
    padding: var(--spacing-4);
}

.app-header {
    height: 20px;
    background: var(--tertiary-bg);
    border-radius: 4px;
    margin-bottom: var(--spacing-4);
}

.app-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.app-card {
    height: 40px;
    background: linear-gradient(135deg, var(--accent-green), #34d399);
    border-radius: 8px;
    opacity: 0.8;
}

.project-content {
    padding: var(--spacing-8);
}

.project-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-4);
}

.project-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
}

.project-status {
    background: var(--accent-green);
    color: white;
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: 12px;
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.project-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-6);
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-6);
}

.tech-tag {
    background: var(--tertiary-bg);
    color: var(--text-secondary);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: 12px;
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.project-links {
    display: flex;
    gap: var(--spacing-4);
}

.project-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--accent-green);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.project-link:hover {
    color: var(--accent-green-hover);
}

/* Skills Section */
.skills-categories {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-8);
    max-width: 1200px;
    margin: 0 auto;
}

.skill-category {
    background: var(--secondary-bg);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    padding: var(--spacing-8);
}

.skill-category h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-6);
    color: var(--text-primary);
}

.skills-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.skill-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.skill-icon {
    font-size: var(--font-size-2xl);
    width: 40px;
    text-align: center;
}

.skill-info {
    flex: 1;
}

.skill-name {
    display: block;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-1);
}

.skill-level {
    width: 100%;
    height: 4px;
    background: var(--tertiary-bg);
    border-radius: 2px;
    overflow: hidden;
}

.skill-bar {
    height: 100%;
    background: linear-gradient(135deg, var(--accent-green), #34d399);
    border-radius: 2px;
    transition: width 1s ease-out;
    width: 0%;
}

/* Contact Section */
.contact-section {
    background: var(--primary-bg);
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.contact-header {
    margin-bottom: var(--spacing-16);
}

.contact-main {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-12);
    align-items: center;
}

.contact-form-wrapper {
    width: 100%;
    max-width: 600px;
}

.contact-form {
    background: var(--secondary-bg);
    border: 1px solid var(--border-light);
    border-radius: 24px;
    padding: var(--spacing-10);
    box-shadow: 0 4px 20px var(--shadow-light);
    backdrop-filter: blur(20px);
}

.form-group {
    margin-bottom: var(--spacing-6);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-5) var(--spacing-6);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    font-family: inherit;
    font-size: var(--font-size-base);
    background: var(--tertiary-bg);
    transition: all var(--transition-normal);
    resize: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-tertiary);
    font-weight: 400;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-green);
    background: var(--secondary-bg);
    box-shadow: 0 0 0 3px rgba(11, 102, 35, 0.1);
    transform: translateY(-1px);
}

.form-group textarea {
    min-height: 140px;
    line-height: 1.6;
}

.submit-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    width: 100%;
    background: var(--accent-green);
    color: white;
    border: none;
    padding: var(--spacing-5) var(--spacing-6);
    border-radius: 16px;
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 16px rgba(11, 102, 35, 0.3);
}

.submit-button:hover {
    background: var(--accent-green-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(11, 102, 35, 0.4);
}

.submit-button:active {
    transform: translateY(0);
}

.contact-info {
    width: 100%;
    max-width: 600px;
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-10);
}

.contact-card {
    background: var(--secondary-bg);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    padding: var(--spacing-6);
    text-align: center;
    transition: all var(--transition-normal);
    backdrop-filter: blur(20px);
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px var(--shadow-light);
    border-color: var(--border-medium);
}

.contact-card-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--accent-green), #34d399);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-4);
    color: white;
}

.contact-card-icon i {
    width: 20px;
    height: 20px;
}

.contact-card-content h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-2);
}

.contact-card-content span,
.contact-card-content a {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.contact-card-content a:hover {
    color: var(--accent-green);
}

.social-section {
    text-align: center;
}

.social-section h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-4);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-4);
}

.social-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    background: var(--secondary-bg);
    border: 1px solid var(--border-light);
    padding: var(--spacing-3) var(--spacing-5);
    border-radius: 16px;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: all var(--transition-normal);
    backdrop-filter: blur(20px);
}

.social-link:hover {
    background: var(--tertiary-bg);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-light);
}

.social-link i {
    width: 16px;
    height: 16px;
}

/* Footer */
.footer {
    background: var(--secondary-bg);
    border-top: 1px solid var(--border-light);
    padding: var(--spacing-8) 0 var(--spacing-6);
    margin-top: var(--spacing-12);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-6);
}

.footer-info p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin: 0;
}

.footer-links {
    display: flex;
    gap: var(--spacing-6);
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

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

/* Responsive Design */

@media (max-width: 1024px) {
    .mobile-menu-btn {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        width: 100%;
        height: calc(100vh - 72px);
        background: var(--secondary-bg);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: var(--spacing-8);
        transform: translateX(-100%);
        transition: transform 0.3s ease-in-out;
        z-index: 1001;
        border-top: 1px solid var(--border-light);
        backdrop-filter: blur(20px);
    }

    .nav-links.active {
        transform: translateX(0);
    }

    .nav-link {
        padding: var(--spacing-4) var(--spacing-6);
        font-size: var(--font-size-lg);
        width: 100%;
        text-align: center;
        border-bottom: 1px solid var(--border-light);
    }

    .nav-link:last-child {
        border-bottom: none;
    }

    .nav-cta {
        order: 2;
    }

    .language-toggle {
        order: 1;
        margin-left: 0;
    }
}


@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-4);
    }

    .nav-container {
        padding: 0 var(--spacing-4);
    }

    .section {
        padding: var(--spacing-16) 0;
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .hero-roles {
        flex-direction: column;
        gap: var(--spacing-4);
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .primary-button,
    .secondary-button {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

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

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

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

    .contact-main {
        gap: var(--spacing-8);
    }

    .contact-form {
        padding: var(--spacing-6);
    }

    .contact-cards {
        grid-template-columns: 1fr;
        gap: var(--spacing-3);
    }

    .social-links {
        flex-direction: column;
        align-items: center;
    }

    .social-link {
        width: 200px;
        justify-content: center;
    }

    .lang-dropdown {
        right: 0;
        left: auto;
    }

    .projects-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
    }

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

    .project-card:nth-child(n) {
        display: block;
        width: 100%;
        margin: 0;
        margin-bottom: var(--spacing-6);
    }

    .project-card:last-child {
        margin-bottom: 0;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

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

    .nav-cta {
        display: none;
    }

    .lang-toggle-btn {
        padding: var(--spacing-1) var(--spacing-2);
    }

    .lang-text {
        display: none;
    }

    .lang-dropdown {
        min-width: 120px;
    }

    .form-group input,
    .form-group textarea {
        padding: var(--spacing-4) var(--spacing-5);
    }

    .contact-card {
        padding: var(--spacing-4);
    }
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes langSpin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease-out forwards;
}

.animate-fadeInLeft {
    animation: fadeInLeft 0.6s ease-out forwards;
}

.animate-fadeInRight {
    animation: fadeInRight 0.6s ease-out forwards;
}

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

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

/* Loading state for language switch */
.lang-loading {
    position: relative;
}

.lang-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 12px;
    height: 12px;
    margin: -6px 0 0 -6px;
    border: 2px solid var(--accent-green);
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: langSpin 0.8s linear infinite;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--tertiary-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}