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

:root {
    --color-primary: #000000;
    --color-secondary: #666666;
    --color-accent: #0066CC;
    --color-background: #FFFFFF;
    --color-surface: #F5F5F7;
    --color-border: #E5E5E7;
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 32px;
    --spacing-lg: 64px;
    --spacing-xl: 96px;
    --font-size-xs: 14px;
    --font-size-sm: 16px;
    --font-size-md: 18px;
    --font-size-lg: 24px;
    --font-size-xl: 40px;
    --font-size-xxl: 56px;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', 'Poppins', sans-serif;
    background-color: var(--color-background);
    color: var(--color-primary);
    overflow-x: hidden;
    scroll-behavior: smooth;
    font-size: var(--font-size-md);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Smooth scroll offset for fixed header */
html {
    scroll-padding-top: 80px;
}

/* Selection color */
::selection {
    background-color: var(--color-accent);
    color: white;
}

::-moz-selection {
    background-color: var(--color-accent);
    color: white;
}

/* Scroll Reveal Animation */
.fade-in-section {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: var(--transition-normal);
}

    .header ul {
        display: flex;
        justify-content: flex-end;
        align-items: center;
        list-style: none;
        padding: var(--spacing-sm) var(--spacing-lg);
        margin: 0;
        max-width: 1400px;
        margin: 0 auto;
    }

    .header li {
        margin: 0 var(--spacing-md);
    }

    .header a {
        text-decoration: none;
        color: var(--color-primary);
        font-size: var(--font-size-sm);
        font-weight: var(--font-weight-medium);
        letter-spacing: -0.01em;
        transition: var(--transition-fast);
        position: relative;
        padding: var(--spacing-xs) 0;
    }

    /* Language Switcher */
    .lang-switcher {
        display: flex;
        align-items: center;
        gap: var(--spacing-xs);
    }

    .lang-btn {
        background: none;
        border: none;
        color: var(--color-secondary);
        font-size: var(--font-size-sm);
        font-weight: var(--font-weight-medium);
        cursor: pointer;
        transition: var(--transition-fast);
        padding: var(--spacing-xs);
    }

    .lang-btn:hover {
        color: var(--color-primary);
    }

    .lang-btn.active {
        color: var(--color-accent);
        font-weight: var(--font-weight-semibold);
    }

    .lang-divider {
        color: var(--color-border);
        font-size: var(--font-size-sm);
    }

        .header a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-accent);
            transition: var(--transition-normal);
        }

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

        .header a:hover::after {
            width: 100%;
        }

/* Header Mobile */
@media (max-width: 768px) {
    .header {
        position: fixed;
    }

        .header ul {
            display: none;
            flex-direction: column;
            background-color: var(--color-background);
            position: absolute;
            top: 60px;
            right: 0;
            width: 200px;
            padding: var(--spacing-sm);
            border: 1px solid var(--color-border);
            border-radius: 12px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
            margin-right: var(--spacing-md);
        }

        .header li {
            margin: var(--spacing-xs) 0;
        }

        .header .menu-toggle {
            display: block;
            background: none;
            border: none;
            font-size: 1.5em;
            cursor: pointer;
            color: var(--color-primary);
            padding: var(--spacing-xs);
            position: absolute;
            top: 10px;
            right: var(--spacing-md);
        }

        .header ul.active {
            display: flex;
        }

        .header a::after {
            display: none;
        }
}

/* Header Desktop */
@media (min-width: 769px) {
    .header .menu-toggle {
        display: none;
    }
}


/* Hero Section */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes floatAnimation {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: var(--spacing-xl) var(--spacing-lg);
    padding-top: calc(var(--spacing-xl) + 60px);
    background: var(--color-background);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(0, 102, 204, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 102, 204, 0.03) 0%, transparent 50%);
    z-index: 0;
}

.hero .container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

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

.hero-label {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-md);
    opacity: 0;
    animation: fadeIn 0.8s ease-out 0.2s forwards;
}

.hero-title {
    font-size: var(--font-size-xxl);
    font-weight: var(--font-weight-bold);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.hero-title .title-line {
    display: block;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

.hero-title .title-line:nth-child(1) {
    animation-delay: 0.3s;
}

.hero-title .title-line:nth-child(2) {
    animation-delay: 0.4s;
}

.hero-title .title-line:nth-child(3) {
    animation-delay: 0.5s;
}

.hero-subtitle {
    font-size: var(--font-size-md);
    line-height: 1.7;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    opacity: 0;
    animation: fadeIn 0.8s ease-out 0.7s forwards;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    opacity: 0;
    animation: fadeIn 0.8s ease-out 0.9s forwards;
}

.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    border-radius: 980px;
    text-decoration: none;
    transition: var(--transition-fast);
    cursor: pointer;
}

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

.btn-primary:hover {
    background: #0052A3;
    border-color: #0052A3;
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 102, 204, 0.2);
}

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

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

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeIn 1s ease-out 0.5s both;
}

.photo-frame {
    position: relative;
    animation: floatAnimation 6s ease-in-out infinite;
}

.photo {
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background-image: url('assets/Ely-Antunes.png');
    background-size: cover;
    background-position: center;
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.1),
        0 0 0 1px rgba(0, 0, 0, 0.05);
    transition: var(--transition-normal);
}

.photo:hover {
    transform: scale(1.02);
    box-shadow:
        0 30px 80px rgba(0, 0, 0, 0.15),
        0 0 0 1px rgba(0, 0, 0, 0.08);
}

/* Mobile Responsiveness */
@media (max-width: 968px) {
    :root {
        --font-size-xxl: 40px;
        --font-size-xl: 32px;
        --font-size-lg: 20px;
        --spacing-xl: 64px;
        --spacing-lg: 48px;
    }

    .hero .container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        text-align: center;
    }

    .hero-content {
        order: 2;
    }

    .hero-image {
        order: 1;
    }

    .hero-subtitle {
        max-width: 100%;
    }

    .hero-cta {
        justify-content: center;
        flex-wrap: wrap;
    }

    .photo {
        width: 280px;
        height: 280px;
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-xxl: 32px;
        --font-size-xl: 28px;
        --font-size-lg: 18px;
        --font-size-md: 16px;
        --spacing-xl: 48px;
        --spacing-lg: 32px;
    }

    .hero {
        padding: var(--spacing-lg) var(--spacing-md);
        padding-top: calc(var(--spacing-lg) + 60px);
    }

    .photo {
        width: 220px;
        height: 220px;
    }

    .btn-primary, .btn-secondary {
        padding: 12px 28px;
        font-size: var(--font-size-xs);
        width: 100%;
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
    }
}

/* Metrics Section */
.metrics {
    padding: var(--spacing-xl) var(--spacing-lg);
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    max-width: 1400px;
    margin: 0 auto;
}

.metric-item {
    text-align: center;
}

.metric-number {
    font-size: 64px;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.metric-number::after {
    content: '+';
    color: var(--color-accent);
}

.metric-label {
    font-size: var(--font-size-sm);
    color: var(--color-secondary);
    font-weight: var(--font-weight-medium);
}

@media (max-width: 968px) {
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .metrics-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .metric-number {
        font-size: 48px;
    }
}

/* Expertise Section */
.expertise {
    padding: var(--spacing-xl) var(--spacing-lg);
    background: var(--color-background);
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
}

.section-header h2 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: var(--font-size-md);
    color: var(--color-secondary);
    line-height: 1.6;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    max-width: 1400px;
    margin: 0 auto;
}

.expertise-card {
    padding: var(--spacing-lg);
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    transition: var(--transition-normal);
}

.expertise-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
    border-color: var(--color-accent);
}

.expertise-icon {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-md);
    color: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 102, 204, 0.05);
    border-radius: 12px;
}

.expertise-card h3 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.expertise-card p {
    font-size: var(--font-size-sm);
    color: var(--color-secondary);
    line-height: 1.7;
}

@media (max-width: 968px) {
    .expertise-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
}

/* Tech Lab Section */
.tech-lab {
    padding: var(--spacing-xl) var(--spacing-lg);
    background: var(--color-surface);
}

.tech-lab-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    max-width: 1400px;
    margin: 0 auto;
}

.tech-project-card {
    position: relative;
    padding: var(--spacing-lg);
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.tech-project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
    border-color: var(--color-accent);
}

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

.project-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 102, 204, 0.05);
    border-radius: 12px;
    color: var(--color-accent);
}

.project-status {
    font-size: 11px;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 12px;
    border-radius: 12px;
    white-space: nowrap;
}

.project-status.archived {
    background: rgba(102, 102, 102, 0.1);
    color: var(--color-secondary);
}

.project-status.live {
    background: rgba(0, 200, 100, 0.1);
    color: #00C864;
}

.tech-project-card h3 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.tech-project-card p {
    font-size: var(--font-size-sm);
    color: var(--color-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.project-tech {
    font-size: var(--font-size-xs);
    color: var(--color-accent);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-accent);
    text-decoration: none;
    transition: var(--transition-fast);
    margin-top: var(--spacing-xs);
}

.project-link:hover {
    gap: 8px;
    color: var(--color-primary);
}

.project-link svg {
    transition: var(--transition-fast);
}

@media (max-width: 968px) {
    .tech-lab-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

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

/* Featured Clients Section */
.featured-clients {
    background: var(--color-background);
    padding: var(--spacing-xl) var(--spacing-lg);
}

.section-label {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
}

.featured-carousel-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.featured-carousel {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

.featured-card {
    min-width: 100%;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
    align-items: center;
    padding: var(--spacing-xl);
    background: var(--color-surface);
    border-radius: 24px;
    border: 1px solid var(--color-border);
}

.featured-card-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    background: var(--color-background);
    border-radius: 16px;
    border: 1px solid var(--color-border);
}

.featured-card-logo img {
    width: 180px;
    height: 180px;
    object-fit: contain;
    margin-bottom: var(--spacing-md);
}

.featured-card-logo h3 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    text-align: center;
}

.featured-card-logo .company-segment {
    font-size: var(--font-size-sm);
    color: var(--color-secondary);
    margin-top: var(--spacing-xs);
}

.featured-card-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.featured-card-content h4 {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.featured-card-content p {
    font-size: var(--font-size-md);
    line-height: 1.8;
    color: var(--color-secondary);
}

/* Carousel Navigation */
.carousel-navigation {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.carousel-nav-btn {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-fast);
    color: var(--color-primary);
}

.carousel-nav-btn:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
    transform: scale(1.1);
}

.carousel-nav-btn:active {
    transform: scale(0.95);
}

.carousel-indicators {
    display: flex;
    gap: var(--spacing-xs);
}

.indicator-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-border);
    transition: var(--transition-fast);
    cursor: pointer;
}

.indicator-dot.active {
    background: var(--color-accent);
    width: 24px;
    border-radius: 4px;
}

/* Mobile Featured Clients */
@media (max-width: 968px) {
    .featured-card {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        padding: var(--spacing-md);
    }

    .featured-card-logo img {
        width: 120px;
        height: 120px;
    }
}

/* Clientes Atendidos Section */
.clientes-atendidos {
    background-color: var(--color-surface);
    padding: var(--spacing-xl) var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

/* Filter Container */
.filter-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.filter-btn {
    padding: 10px 24px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-secondary);
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: 980px;
    cursor: pointer;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

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

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

.filter-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    padding: 0 6px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 12px;
    font-size: 12px;
    font-weight: var(--font-weight-semibold);
}

.filter-btn.active .filter-count {
    background: rgba(255, 255, 255, 0.2);
}

.portfolio-stats {
    text-align: center;
    font-size: var(--font-size-md);
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: var(--font-weight-medium);
}

.portfolio-stats span {
    color: var(--color-accent);
    font-weight: var(--font-weight-semibold);
}

/* Grid de Clientes */
.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    width: 100%;
    max-width: 1400px;
}

/* Card de Cliente */
.client-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    background-color: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--spacing-md);
    box-sizing: border-box;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    min-height: 220px;
}

.client-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    border-color: var(--color-accent);
}

    /* Ajuste do tamanho da imagem dentro dos cards */
    .client-card img {
        width: 80px;
        height: 80px;
        object-fit: contain;
        margin-bottom: var(--spacing-sm);
        transition: var(--transition-normal);
        filter: grayscale(30%);
    }

    .client-card:hover img {
        transform: scale(1.05);
        filter: grayscale(0%);
    }

    /* Ajuste do tamanho da fonte no card */
    .client-card h4 {
        font-size: var(--font-size-sm);
        margin: var(--spacing-xs) 0;
        font-weight: var(--font-weight-semibold);
        color: var(--color-primary);
        letter-spacing: -0.01em;
    }

    .client-card p {
        font-size: var(--font-size-xs);
        color: var(--color-secondary);
        line-height: 1.5;
    }

/* Ajustes para telas pequenas */
@media (max-width: 768px) {
    .clients-grid {
        grid-template-columns: repeat(2, 1fr); /* 2 cards por linha na tela pequena */
        gap: 25px; /* Ajusta o espaçamento entre os cards */
        width: 75%;
        object-fit: contain; /* Ajusta a imagem para manter a proporção */
        padding: 0px; /* Adiciona um espaçamento interno */
    }

    .client-card {
        padding: 5px; /* Reduz o padding dos cards em telas pequenas */
        height: 220px; /* Define uma altura fixa menor para cards em telas pequenas */
    }

        .client-card img {
            width: 70px; /* Reduz o tamanho do logotipo para telas pequenas */
            height: 70px; /* Reduz o tamanho do logotipo para telas pequenas */
        }

        .client-card h4 {
            font-size: 0.8em; /* Ajusta o tamanho da fonte do título */
        }

        .client-card p {
            font-size: 0.8em; /* Ajusta o tamanho da fonte da descrição */
        }
}

/* Botão Carregar Mais */
#load-more {
    background: var(--color-accent);
    color: white;
    border: 2px solid var(--color-accent);
    border-radius: 980px;
    padding: 14px 40px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: var(--transition-fast);
    margin-top: var(--spacing-lg);
    letter-spacing: -0.01em;
}

#load-more:hover {
    background: #0052A3;
    border-color: #0052A3;
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 102, 204, 0.2);
}

#load-more:active {
    transform: translateY(0);
}


/* About Section */
.about-section {
    background: var(--color-surface);
    padding: var(--spacing-xl) var(--spacing-lg);
}

.about-container {
    max-width: 1000px;
    margin: 0 auto;
}

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

.about-main h2 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.about-text {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.lead-text {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
}

.about-text p {
    font-size: var(--font-size-md);
    line-height: 1.7;
    color: var(--color-secondary);
}

.highlight {
    font-weight: var(--font-weight-semibold);
    color: var(--color-accent);
}

/* Tech Stack */
.about-skills {
    background: var(--color-background);
    padding: var(--spacing-lg);
    border-radius: 16px;
    border: 1px solid var(--color-border);
}

.about-skills h3 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.tech-stack {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.tech-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-surface);
    border-radius: 12px;
}

.tech-category {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-accent);
    min-width: 100px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tech-list {
    font-size: var(--font-size-md);
    color: var(--color-secondary);
    line-height: 1.6;
}

/* About CTA */
.about-cta {
    background: var(--color-background);
    padding: var(--spacing-lg);
    border-radius: 16px;
    border: 1px solid var(--color-border);
    text-align: center;
}

.about-cta h3 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.about-cta p {
    font-size: var(--font-size-md);
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
}

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

/* Footer */
.footer {
    background: var(--color-background);
    padding: var(--spacing-lg) var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-info p {
    font-size: var(--font-size-xs);
    color: var(--color-secondary);
}

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

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

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

/* Scroll to Top Button */
.scroll-top-btn {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 56px;
    height: 56px;
    background: var(--color-accent);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(0, 102, 204, 0.3);
    transition: var(--transition-normal);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 999;
}

.scroll-top-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top-btn:hover {
    background: #0052A3;
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 102, 204, 0.4);
}

.scroll-top-btn:active {
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .scroll-top-btn {
        bottom: var(--spacing-md);
        right: var(--spacing-md);
        width: 48px;
        height: 48px;
    }
}

/* Mobile Responsiveness for About and Footer */
@media (max-width: 768px) {
    .about-section {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .tech-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }

    .tech-category {
        min-width: auto;
    }

    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }

    .cta-buttons .btn-primary,
    .cta-buttons .btn-secondary {
        width: 100%;
    }

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}