:root, body.dark-theme {
    --yara-bg-principal: #000000;
    --yara-bg-card: #18181B;
    --yara-preto-base: #FFFFFF;
    --yara-preto-degrade: linear-gradient(135deg, #FFFFFF, #A1A1AA);
    --yara-texto-escuro: #FFFFFF;
    --yara-texto-mutado: #A1A1AA;
    --yara-hero-texto: #FFFFFF;
    --yara-borda: #27272A;
    --yara-bg-screens: #09090B;
    --yara-hero-tag-bg: rgba(255, 255, 255, 0.1);
    --yara-hero-tag-border: rgba(255, 255, 255, 0.2);
    --yara-cta-grad: radial-gradient(circle at top right, rgba(255,255,255,0.05), rgba(255,255,255,0) 50%);
    --yara-gh-filter: invert(1);
}

body.light-theme {
    --yara-bg-principal: #F9FAFB;
    --yara-bg-card: #FFFFFF;
    --yara-preto-base: #000000;
    --yara-preto-degrade: linear-gradient(135deg, #27272A, #000000);
    --yara-texto-escuro: #18181B;
    --yara-texto-mutado: #52525B;
    --yara-hero-texto: #52525B;
    --yara-borda: #E4E4E7;
    --yara-bg-screens: #F4F4F5;
    --yara-hero-tag-bg: rgba(0, 0, 0, 0.05);
    --yara-hero-tag-border: rgba(0, 0, 0, 0.2);
    --yara-cta-grad: radial-gradient(circle at top right, rgba(0,0,0,0.05), rgba(0,0,0,0) 50%);
    --yara-gh-filter: none;
}

body {
    background-color: var(--yara-bg-principal);
    color: var(--yara-texto-escuro);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.yara-landing {
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
    line-height: 1.6;
    padding-top: 20px;
    position: relative;
    z-index: 2;
}

.yara-landing h1, 
.yara-landing h2, 
.yara-landing h3, 
.yara-landing h4 {
    color: var(--yara-texto-escuro);
    font-family: 'Rajdhani', sans-serif;
    transition: color 0.3s ease;
}

.hero {
    max-width: 1200px;
    margin: 0 auto;
    padding: 100px 20px 80px 20px;
    display: flex;
    align-items: center;
    gap: 60px;
    min-height: 85vh;
}

.hero-content {
    flex: 1;
}

.hero-tag {
    display: inline-block;
    background: var(--yara-hero-tag-bg);
    border: 1px solid var(--yara-hero-tag-border);
    color: var(--yara-preto-base);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.hero-wordmark {
    display: block;
    margin: 0 auto 24px auto;
    max-width: 320px;
    width: 100%;
    height: auto;
    object-fit: contain;
}

.dark-logo {
    display: block;
}

.light-logo {
    display: none;
}

body.light-theme .dark-logo {
    display: none;
}

body.light-theme .light-logo {
    display: block;
}

.hero h1 {
    font-size: 56px;
    line-height: 1.1;
    font-weight: 700;
    margin-bottom: 24px;
}

.hero h1 span {
    background: var(--yara-preto-degrade);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    color: var(--yara-hero-texto);
    font-size: 18px;
    margin-bottom: 40px;
    max-width: 540px;
    transition: color 0.3s ease;
}

.play-badge {
    height: 65px;
    width: auto;
    transition: transform 0.3s ease;
    display: inline-block;
}

.play-badge:hover {
    transform: translateY(-2px) scale(1.02);
}

.hero-mockup {
    flex: 1;
    display: flex;
    justify-content: center;
    position: relative;
}

.mockup-container {
    width: 320px;
    height: 640px;
    background: #18181B;
    border: 12px solid #27272A;
    border-radius: 44px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    position: relative;
    user-select: none;
}

.mockup-track {
    display: flex;
    height: 100%;
    width: 100%;
}

.mockup-track img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    flex-shrink: 0;
    pointer-events: none;
}

.mockup-glow {
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 0, 0, 0.1) 0%, rgba(0,0,0,0) 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: -1;
}

.features {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-header p {
    color: var(--yara-texto-mutado);
    font-size: 16px;
    max-width: 600px;
    margin: 0 auto;
    transition: color 0.3s ease;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 20px;
}

.feature-card, .screen-item, .github-container, .cta {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.feature-card {
    background: var(--yara-bg-card);
    border: 1px solid var(--yara-borda);
    padding: 40px;
    border-radius: 20px;
    transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s, background-color 0.3s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.02);
}

.feature-card:hover {
    border-color: rgba(0, 0, 0, 0.3);
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
}

body:not(.light-theme) .feature-card:hover {
    border-color: rgba(255, 255, 255, 0.3);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: var(--yara-hero-tag-bg);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    transition: background-color 0.3s ease;
}

.feature-icon i {
    font-size: 28px;
    color: var(--yara-preto-base);
    transition: color 0.3s ease;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
}

.feature-card p {
    color: var(--yara-texto-mutado);
    font-size: 15px;
    line-height: 1.6;
    transition: color 0.3s ease;
}

.screens {
    background: var(--yara-bg-screens) !important;
    padding: 40px 0;
    border-top: 1px solid var(--yara-borda);
    border-bottom: 1px solid var(--yara-borda);
    transition: background-color 0.3s ease, border-color 0.3s ease;
    overflow: hidden;
    position: relative;
}

.screen-carousel.screen-carousel {
    padding: 20px 20px 80px 20px;
    width: 100%;
}

.screen-carousel .swiper-wrapper {
    display: flex;
    align-items: center;
}

.screen-carousel .swiper-slide {
    width: 260px !important;
}

.screen-item {
    width: 100%;
    height: 520px;
    background: var(--yara-bg-card);
    border-radius: 24px;
    border: 4px solid var(--yara-borda);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

.screen-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.swiper-pagination-bullet {
    background: var(--yara-texto-mutado) !important;
    opacity: 0.4 !important;
    transition: all 0.3s ease;
}

.swiper-pagination-bullet-active {
    background: var(--yara-preto-base) !important;
    opacity: 1 !important;
    transform: scale(1.2);
}


.github-container {
    max-width: 1200px;
    margin: 0 auto 80px auto;
    padding: 60px 40px;
    background: var(--yara-bg-card);
    border: 1px solid var(--yara-borda);
    border-radius: 32px;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0,0,0,0.03);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.github-container h2 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 16px;
    font-family: 'Rajdhani', sans-serif;
}

.github-container p {
    color: var(--yara-texto-mutado);
    font-size: 18px;
    max-width: 600px;
    margin: 0 auto 30px auto;
    transition: color 0.3s ease;
}

.btn-github {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: transparent;
    color: var(--yara-texto-escuro) !important;
    border: 1px solid var(--yara-borda);
    padding: 16px 32px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.3s, box-shadow 0.3s, background 0.3s, border-color 0.3s;
}

.btn-github:hover {
    transform: translateY(-2px);
    background: var(--yara-hero-tag-bg);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.github-icon {
    width: 24px;
    height: 24px;
    filter: var(--yara-gh-filter);
    transition: filter 0.3s ease;
}

.cta {
    max-width: 1200px;
    margin: 60px auto 120px auto;
    padding: 60px 40px;
    background: var(--yara-cta-grad), var(--yara-bg-card);
    border: 1px solid var(--yara-borda);
    border-radius: 32px;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0,0,0,0.03);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.cta h2 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
}

.cta p {
    color: var(--yara-texto-mutado);
    font-size: 18px;
    max-width: 600px;
    margin: 0 auto 40px auto;
    transition: color 0.3s ease;
}

@media (max-width: 968px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 60px;
        gap: 40px;
    }
    .hero p {
        margin: 0 auto 40px auto;
    }
    .hero h1 {
        font-size: 42px;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .feature-icon {
        margin: 0 auto 24px auto;
    }
    .github-container {
        padding: 40px 20px;
        margin: 0 20px 60px 20px;
    }
}