/* ============================================
   BigCommunity - Design System macOS Dark Mode 🦉
   ============================================ */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ============================================
   CSS Variables
   ============================================ */
:root {
    /* Cores de fundo - aprimoradas */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: rgba(25, 25, 35, 0.7);
    --bg-glass: rgba(255, 255, 255, 0.03);
    --bg-glass-strong: rgba(255, 255, 255, 0.08);

    /* Cores de texto */
    --text-primary: #f5f5f7;
    --text-secondary: #a1a1a6;
    --text-muted: #6e6e73;

    /* Cores de destaque - mais vibrantes */
    --accent-blue: #0a84ff;
    --accent-purple: #bf5af2;
    --accent-green: #30d158;
    --accent-orange: #ff9f0a;
    --accent-pink: #ff375f;
    --accent-cyan: #5ac8fa;
    --accent-teal: #64d2ff;

    /* Gradientes - mais dinâmicos */
    --gradient-hero: linear-gradient(135deg, #0a0a1a 0%, #1a1a3e 25%, #0f0f2d 50%, #151530 75%, #0a0a1a 100%);
    --gradient-card: linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.02) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-purple) 50%, var(--accent-pink) 100%);
    --gradient-glow: radial-gradient(ellipse at center, rgba(10, 132, 255, 0.2) 0%, transparent 70%);
    --gradient-aurora: linear-gradient(45deg,
            rgba(10, 132, 255, 0.15) 0%,
            rgba(191, 90, 242, 0.1) 25%,
            rgba(48, 209, 88, 0.08) 50%,
            rgba(90, 200, 250, 0.1) 75%,
            rgba(10, 132, 255, 0.15) 100%);
    --gradient-shimmer: linear-gradient(90deg,
            transparent 0%,
            rgba(255, 255, 255, 0.4) 50%,
            transparent 100%);

    /* Bordas e sombras - mais sofisticadas */
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.12);
    --border-glow: rgba(10, 132, 255, 0.3);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(10, 132, 255, 0.25);
    --shadow-glow-intense: 0 0 60px rgba(10, 132, 255, 0.4), 0 0 120px rgba(191, 90, 242, 0.2);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.05);

    /* Espaçamentos */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;

    /* Tipografia */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 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: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;

    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transições */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 300;
}

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

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

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

/* Background com efeito de glow */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 100%;
    background: var(--gradient-glow);
    pointer-events: none;
    z-index: -1;
}

a {
    color: inherit;
    text-decoration: none;
}

ul,
ol {
    list-style: none;
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ============================================
   Typography
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: var(--font-size-5xl);
}

h2 {
    font-size: var(--font-size-4xl);
}

h3 {
    font-size: var(--font-size-3xl);
}

h4 {
    font-size: var(--font-size-2xl);
}

h5 {
    font-size: var(--font-size-xl);
}

h6 {
    font-size: var(--font-size-lg);
}

p {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
}

.text-gradient {
    background: linear-gradient(135deg,
            var(--accent-blue) 0%,
            var(--accent-purple) 25%,
            var(--accent-pink) 50%,
            var(--accent-purple) 75%,
            var(--accent-blue) 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 4s ease-in-out infinite;
}

@keyframes shimmer {

    0%,
    100% {
        background-position: 0% center;
    }

    50% {
        background-position: 200% center;
    }
}

/* ============================================
   Layout
   ============================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-2xl) 0;
}

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

.section-header h2 {
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   Header / Navigation
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    padding: var(--spacing-sm) 0;
    transition: var(--transition-base);
}

.header.scrolled {
    background: rgba(10, 10, 15, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: var(--font-size-xl);
}

.logo img {
    height: 40px;
    width: auto;
}

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

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-fast);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-accent);
    transition: var(--transition-fast);
}

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

.nav-link.external::after {
    display: none;
}

.nav-link.external svg {
    width: 12px;
    height: 12px;
    margin-left: 4px;
    opacity: 0.5;
}

/* Dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-fast);
    cursor: pointer;
}

.nav-dropdown-toggle:hover {
    color: var(--text-primary);
}

.nav-dropdown-toggle svg {
    width: 12px;
    height: 12px;
    transition: var(--transition-fast);
}

.nav-dropdown:hover .nav-dropdown-toggle svg {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: var(--spacing-sm);
    min-width: 180px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-fast);
    box-shadow: var(--shadow-lg);
}

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

.nav-dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.nav-dropdown-item:hover {
    background: var(--bg-glass);
    color: var(--text-primary);
}

.nav-dropdown-item svg {
    width: 18px;
    height: 18px;
    opacity: 0.7;
}

/* Mobile menu toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-xs);
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-fast);
}

/* ============================================
   Hero Section - Redesign Premium
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-md);
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

/* Aurora Boreal - Premium Effect */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        linear-gradient(180deg,
            transparent 0%,
            rgba(10, 132, 255, 0.15) 20%,
            rgba(48, 209, 88, 0.1) 40%,
            rgba(191, 90, 242, 0.12) 60%,
            transparent 100%);
    filter: blur(60px);
    animation: auroraBorealis 12s ease-in-out infinite;
    transform-origin: center top;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        linear-gradient(135deg,
            transparent 30%,
            rgba(90, 200, 250, 0.08) 45%,
            rgba(10, 132, 255, 0.1) 55%,
            transparent 70%);
    filter: blur(80px);
    animation: auroraBorealis2 15s ease-in-out infinite reverse;
    pointer-events: none;
}

@keyframes auroraBorealis {

    0%,
    100% {
        transform: translateX(-10%) skewX(-5deg) scaleY(1);
        opacity: 0.8;
    }

    25% {
        transform: translateX(5%) skewX(3deg) scaleY(1.1);
        opacity: 1;
    }

    50% {
        transform: translateX(10%) skewX(5deg) scaleY(0.9);
        opacity: 0.9;
    }

    75% {
        transform: translateX(-5%) skewX(-3deg) scaleY(1.05);
        opacity: 1;
    }
}

@keyframes auroraBorealis2 {

    0%,
    100% {
        transform: translateX(10%) skewX(5deg);
        opacity: 0.6;
    }

    50% {
        transform: translateX(-10%) skewX(-5deg);
        opacity: 0.8;
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--bg-glass-strong);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.hero-badge svg {
    width: 14px;
    height: 14px;
    color: var(--accent-green);
}

/* Título Hero com animação flutuante */
.hero h1 {
    margin-bottom: var(--spacing-md);
    font-weight: 800;
    letter-spacing: -0.03em;
    text-shadow: 0 0 40px rgba(10, 132, 255, 0.2);
}

/* Animação flutuante ultra-suave - GPU accelerated */
.hero h1.floating-title,
.hero h1 {
    will-change: transform;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    animation: floatSmooth 5s ease-in-out infinite;
    transform: translateZ(0);
}

@keyframes floatSmooth {

    0%,
    100% {
        transform: translate3d(0, 0, 0);
    }

    50% {
        transform: translate3d(0, -12px, 0);
    }
}

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

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

.hero p {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xl);
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 0.8s ease-out 0.4s both;
    line-height: 1.7;
    color: var(--text-secondary);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

/* Partículas decorativas */
.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    z-index: 1;
}

.hero-particles::before,
.hero-particles::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    filter: blur(80px);
    animation: floatParticle 15s ease-in-out infinite;
}

.hero-particles::before {
    top: 20%;
    left: 10%;
    background: rgba(10, 132, 255, 0.15);
    animation-delay: 0s;
}

.hero-particles::after {
    bottom: 20%;
    right: 10%;
    background: rgba(191, 90, 242, 0.12);
    animation-delay: -7.5s;
}

@keyframes floatParticle {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    25% {
        transform: translate(30px, -30px) scale(1.1);
    }

    50% {
        transform: translate(0, -20px) scale(1);
    }

    75% {
        transform: translate(-30px, -10px) scale(0.9);
    }
}

/* ============================================
   Buttons - Minimal Style
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    white-space: nowrap;
    overflow: hidden;
    position: relative;
    isolation: isolate;
}

.btn svg {
    width: 18px;
    height: 18px;
}

.btn-primary {
    background: #0a84ff;
    color: white;
    border: none;
    box-shadow: 0 2px 8px rgba(10, 132, 255, 0.2);
}

.btn-primary:hover {
    background: #3399ff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(10, 132, 255, 0.35);
}

.btn-secondary {
    background: var(--bg-glass-strong);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.btn-ghost {
    color: var(--text-secondary);
}

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

/* ============================================
   Cards - Minimal Glass Effect
   ============================================ */
.card {
    background: var(--gradient-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: transform 0.4s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-6px);
    border-color: var(--border-light);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
}

.card-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-accent);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    transition: transform 0.3s ease;
}

.card:hover .card-icon {
    transform: translateY(-2px);
}

.card-icon svg {
    width: 26px;
    height: 26px;
    color: white;
}

.card h4 {
    margin-bottom: var(--spacing-sm);
}

/* Feature Cards Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

/* DE Cards - Minimal Style */
.de-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.de-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    overflow: hidden;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: transform 0.4s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.de-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    border-color: var(--border-light);
}

.de-card-image {
    height: 200px;
    background: var(--gradient-hero);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.de-card-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, var(--bg-card) 0%, transparent 50%);
    pointer-events: none;
}

.de-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.de-card:hover .de-card-image img {
    transform: scale(1.03);
}

.de-card-content {
    padding: var(--spacing-lg);
}

.de-card-content h4 {
    margin-bottom: var(--spacing-xs);
}

.de-card-content .badge {
    display: inline-block;
    padding: 2px 8px;
    background: var(--accent-green);
    color: var(--bg-primary);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-sm);
}

.badge-blue {
    background: #0a84ff !important;
    color: white !important;
}

.badge-purple {
    background: #bf5af2 !important;
    color: white !important;
}

.badge-orange {
    background: #ff9f0a !important;
    color: var(--bg-primary) !important;
}

.de-card-content p {
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
}

/* DE Card - Coming Soon */
.de-card-coming-soon {
    position: relative;
}

.de-card-image {
    position: relative;
}

.de-coming-soon-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(10, 10, 15, 0.6);
    backdrop-filter: blur(2px);
    z-index: 2;
}

.de-coming-soon-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(135deg, rgba(255, 159, 10, 0.9) 0%, rgba(255, 159, 10, 0.7) 100%);
    border-radius: var(--radius-full);
    color: var(--bg-primary);
    font-weight: 700;
    font-size: var(--font-size-sm);
    box-shadow: 0 4px 20px rgba(255, 159, 10, 0.4);
    animation: pulseGlow 2s ease-in-out infinite;
}

.de-coming-soon-badge svg {
    animation: spinSlow 4s linear infinite;
}

@keyframes spinSlow {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

@keyframes pulseGlow {

    0%,
    100% {
        box-shadow: 0 4px 20px rgba(255, 159, 10, 0.4);
    }

    50% {
        box-shadow: 0 4px 30px rgba(255, 159, 10, 0.6);
    }
}

.btn-coming-soon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(135deg, rgba(255, 159, 10, 0.2) 0%, rgba(255, 159, 10, 0.1) 100%);
    border: 1px solid rgba(255, 159, 10, 0.4);
    border-radius: var(--radius-full);
    color: #ff9f0a;
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: default;
}

.btn-coming-soon svg {
    animation: pulseIcon 2s ease-in-out infinite;
}

/* ============================================
   Download Cards
   ============================================ */
.download-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    backdrop-filter: blur(20px);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.download-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.download-card-header {
    width: 100%;
    height: 120px;
    margin: calc(-1 * var(--spacing-xl));
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    width: calc(100% + 2 * var(--spacing-xl));
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-hero);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.download-logo {
    width: auto;
    height: 80px;
    object-fit: contain;
    border-radius: var(--radius-md);
}

.download-card h3 {
    margin-bottom: var(--spacing-sm);
}

.download-card .version {
    color: var(--accent-blue);
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

.download-card p {
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-lg);
}

.download-requirements {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.download-requirements span {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-glass);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.download-requirements span svg {
    width: 14px;
    height: 14px;
}

/* Cores diferentes para cada ícone de requisitos */
.download-requirements span:nth-child(1) svg {
    color: #bf5af2;
    /* CPU - Roxo */
}

.download-requirements span:nth-child(2) svg {
    color: #30d158;
    /* RAM - Verde */
}

.download-requirements span:nth-child(3) svg {
    color: #ff9f0a;
    /* Disco - Laranja */
}

.download-md5 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-lg);
    font-family: monospace;
    font-size: 11px;
    color: var(--text-muted);
    overflow-x: auto;
}

.download-md5 span {
    flex-shrink: 0;
    font-weight: 600;
}

.download-md5 code {
    flex: 1;
    word-break: break-all;
    min-width: 0;
}

.download-md5 button {
    flex-shrink: 0;
    color: var(--accent-blue);
    padding: 4px;
    transition: var(--transition-fast);
}

.download-md5 button:hover {
    color: var(--text-primary);
}

/* ============================================
   Coming Soon - Em breve
   ============================================ */
.download-card.coming-soon {
    position: relative;
    pointer-events: auto;
}

.download-card.coming-soon::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 15, 0.4);
    backdrop-filter: blur(2px);
    z-index: 1;
    border-radius: var(--radius-xl);
}

.coming-soon-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    pointer-events: none;
}

.coming-soon-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, rgba(255, 159, 10, 0.15) 0%, rgba(255, 159, 10, 0.05) 100%);
    border: 1px solid rgba(255, 159, 10, 0.3);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 8px 32px rgba(255, 159, 10, 0.1);
}

.coming-soon-icon {
    color: #ff9f0a;
    animation: pulseIcon 2s ease-in-out infinite;
}

@keyframes pulseIcon {

    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.coming-soon-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: #ff9f0a;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.coming-soon-subtext {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.coming-soon-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, rgba(255, 159, 10, 0.2) 0%, rgba(255, 159, 10, 0.1) 100%);
    border: 1px solid rgba(255, 159, 10, 0.3);
    border-radius: var(--radius-full);
    color: #ff9f0a;
    font-weight: 600;
    font-size: var(--font-size-sm);
    position: relative;
    z-index: 3;
}

.coming-soon-badge svg {
    animation: pulseIcon 2s ease-in-out infinite;
}

/* ============================================
   Changelog
   ============================================ */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.changelog-board {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.changelog-toolbar {
    display: flex;
    justify-content: flex-end;
}

.changelog-search {
    position: relative;
    width: min(100%, 420px);
}

.changelog-search svg {
    position: absolute;
    left: var(--spacing-sm);
    top: 50%;
    width: 17px;
    height: 17px;
    color: var(--text-muted);
    transform: translateY(-50%);
    pointer-events: none;
}

.changelog-search input {
    width: 100%;
    height: 44px;
    padding: 0 var(--spacing-md) 0 2.75rem;
    background: rgba(255, 255, 255, 0.045);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font: inherit;
    font-size: var(--font-size-sm);
    outline: none;
    transition: border-color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}

.changelog-search input:focus {
    background: rgba(255, 255, 255, 0.07);
    border-color: var(--border-glow);
    box-shadow: 0 0 0 3px rgba(10, 132, 255, 0.12);
}

.changelog-search input::placeholder {
    color: var(--text-muted);
}

.changelog-tabs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--spacing-sm);
}

.changelog-tab {
    position: relative;
    overflow: hidden;
    min-height: 92px;
    padding: var(--spacing-md);
    text-align: left;
    color: var(--text-secondary);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.changelog-tab::before {
    content: '';
    position: absolute;
    inset: 0 auto 0 0;
    width: 4px;
    background: transparent;
    transition: background var(--transition-fast);
}

.changelog-tab:hover,
.changelog-tab.active {
    color: var(--text-primary);
    background: var(--gradient-card);
    border-color: var(--border-light);
    transform: translateY(-2px);
}

.changelog-tab.active::before {
    background: var(--gradient-accent);
}

.changelog-tab-name,
.changelog-tab-meta {
    display: block;
}

.changelog-tab-name {
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
}

.changelog-tab-meta {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.changelog-panel {
    display: none;
}

.changelog-panel.active {
    display: block;
    animation: fadeInUp 0.35s ease both;
}

.changelog-panel-summary {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--spacing-lg);
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(10, 132, 255, 0.11) 0%, rgba(191, 90, 242, 0.08) 45%, rgba(48, 209, 88, 0.06) 100%);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card);
}

.changelog-eyebrow {
    display: inline-block;
    margin-bottom: var(--spacing-xs);
    color: var(--accent-cyan);
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.changelog-panel-summary h3 {
    margin-bottom: 0.25rem;
    font-size: var(--font-size-3xl);
}

.changelog-panel-summary p {
    font-size: var(--font-size-sm);
}

.changelog-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(105px, 1fr));
    gap: var(--spacing-sm);
}

.changelog-stats span {
    min-width: 0;
    padding: var(--spacing-sm);
    background: rgba(10, 10, 15, 0.36);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-muted);
    font-size: var(--font-size-xs);
}

.changelog-stats strong {
    display: block;
    margin-bottom: 2px;
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    line-height: 1.2;
    word-break: keep-all;
}

.changelog-timeline {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.changelog-timeline::before {
    content: '';
    position: absolute;
    top: 1rem;
    bottom: 1rem;
    left: 15px;
    width: 1px;
    background: linear-gradient(to bottom, var(--accent-blue), rgba(191, 90, 242, 0.45), transparent);
}

.changelog-release {
    position: relative;
    margin-left: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: rgba(25, 25, 35, 0.8);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card);
}

.changelog-release::before {
    content: '';
    position: absolute;
    top: var(--spacing-lg);
    left: calc(-1 * var(--spacing-xl) - 4px);
    width: 13px;
    height: 13px;
    background: var(--accent-blue);
    border: 3px solid var(--bg-secondary);
    border-radius: 50%;
    box-shadow: 0 0 0 5px rgba(10, 132, 255, 0.14);
}

.changelog-release.is-latest {
    border-color: rgba(10, 132, 255, 0.34);
}

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

.changelog-date {
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.changelog-release-meta,
.changelog-release-categories,
.changelog-item-heading,
.changelog-item-meta,
.changelog-subitem-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.changelog-release-meta {
    color: var(--text-muted);
    font-size: var(--font-size-xs);
}

.changelog-release-badge,
.changelog-category,
.changelog-type {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    padding: 3px 9px;
    border: 1px solid transparent;
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 700;
    line-height: 1;
    white-space: nowrap;
}

.changelog-release-badge {
    color: #64d2ff;
    background: rgba(90, 200, 250, 0.12);
    border-color: rgba(90, 200, 250, 0.24);
}

.changelog-release-categories {
    justify-content: flex-end;
    max-width: 48%;
}

.changelog-type-new {
    color: #30d158;
    background: rgba(48, 209, 88, 0.12);
    border-color: rgba(48, 209, 88, 0.26);
}

.changelog-type-updated {
    color: #5ac8fa;
    background: rgba(90, 200, 250, 0.12);
    border-color: rgba(90, 200, 250, 0.26);
}

.changelog-type-fixed {
    color: #ff9f0a;
    background: rgba(255, 159, 10, 0.12);
    border-color: rgba(255, 159, 10, 0.26);
}

.changelog-type-removed {
    color: #ff375f;
    background: rgba(255, 55, 95, 0.12);
    border-color: rgba(255, 55, 95, 0.26);
}

.changelog-type-apps {
    color: #bf5af2;
    background: rgba(191, 90, 242, 0.12);
    border-color: rgba(191, 90, 242, 0.26);
}

.changelog-type-system {
    color: #64d2ff;
    background: rgba(100, 210, 255, 0.12);
    border-color: rgba(100, 210, 255, 0.26);
}

.changelog-type-general {
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--border-subtle);
}

.changelog-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.changelog-item {
    display: grid;
    grid-template-columns: 10px minmax(0, 1fr);
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.035);
    border: 1px solid rgba(255, 255, 255, 0.045);
    border-radius: var(--radius-md);
}

.changelog-item-marker {
    width: 10px;
    height: 10px;
    margin-top: 0.45rem;
    background: var(--text-muted);
    border-radius: 50%;
}

.changelog-item[data-type="new"] .changelog-item-marker {
    background: var(--accent-green);
}

.changelog-item[data-type="updated"] .changelog-item-marker {
    background: var(--accent-cyan);
}

.changelog-item[data-type="fixed"] .changelog-item-marker {
    background: var(--accent-orange);
}

.changelog-item[data-type="removed"] .changelog-item-marker {
    background: var(--accent-pink);
}

.changelog-item[data-type="apps"] .changelog-item-marker {
    background: var(--accent-purple);
}

.changelog-item[data-type="system"] .changelog-item-marker {
    background: var(--accent-teal);
}

.changelog-item-content,
.changelog-subitem-content {
    min-width: 0;
}

.changelog-item-heading {
    margin-bottom: 0.45rem;
}

.changelog-item-text,
.changelog-subitem-text {
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    line-height: 1.55;
    overflow-wrap: anywhere;
}

.changelog-item-meta-date,
.changelog-subitem-meta-date {
    color: var(--text-muted);
    font-size: var(--font-size-xs);
}

.changelog-item-meta-link,
.changelog-subitem-meta-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.changelog-item-meta-link:hover,
.changelog-subitem-meta-link:hover {
    color: var(--text-primary);
    background: rgba(10, 132, 255, 0.16);
    border-color: rgba(10, 132, 255, 0.34);
}

.changelog-item-meta-link svg,
.changelog-subitem-meta-link svg {
    width: 13px;
    height: 13px;
}

.changelog-subitems {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    margin-top: var(--spacing-sm);
    padding-left: var(--spacing-sm);
    border-left: 1px solid var(--border-subtle);
}

.changelog-subitem {
    display: grid;
    grid-template-columns: 8px minmax(0, 1fr);
    gap: var(--spacing-xs);
    color: var(--text-secondary);
}

.changelog-subitem-marker {
    width: 6px;
    height: 6px;
    margin-top: 0.55rem;
    background: var(--text-muted);
    border-radius: 50%;
    opacity: 0.8;
}

.changelog-subitem-text {
    color: var(--text-secondary);
    font-size: 0.84rem;
}

.changelog-release:not(.expanded) .changelog-extra-item {
    display: none;
}

.changelog-more {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: var(--spacing-md);
    padding: 8px 14px;
    color: var(--accent-cyan);
    background: rgba(90, 200, 250, 0.08);
    border: 1px solid rgba(90, 200, 250, 0.22);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 700;
    transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.changelog-more:hover {
    color: var(--text-primary);
    background: rgba(90, 200, 250, 0.15);
    transform: translateY(-1px);
}

.changelog-empty {
    display: none;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
    text-align: center;
    background: var(--bg-card);
    border: 1px dashed var(--border-light);
    border-radius: var(--radius-lg);
}

.changelog-panel.has-no-results .changelog-empty {
    display: block;
}

/* ============================================
   Supporters
   ============================================ */
.supporters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 300px));
    justify-content: center;
    gap: var(--spacing-md);
    max-width: 920px;
    margin: 0 auto;
}

#sobre {
    padding-bottom: var(--spacing-xl);
}

#apoiadores {
    padding-top: var(--spacing-lg);
}

#apoiadores .section-header {
    margin-bottom: var(--spacing-lg);
}

.supporter-logo {
    min-height: 154px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px 20px;
    background: #fff;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition:
        transform var(--transition-base),
        border-color var(--transition-base),
        box-shadow var(--transition-base);
}

.supporter-logo:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.36);
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.28);
}

.supporter-logo img {
    width: 100%;
    max-width: 196px;
    max-height: 118px;
    object-fit: contain;
}

.supporter-logo-large {
    width: 300px;
    min-height: 250px;
}

.supporter-logo-large img {
    max-width: 230px;
    max-height: 214px;
}

/* ============================================
   Team / Volunteers - Minimal
   ============================================ */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--spacing-lg);
}

.team-member {
    text-align: center;
    padding: var(--spacing-md);
    transition: transform 0.3s ease;
}

.team-member:hover {
    transform: translateY(-4px);
}

.team-avatar {
    width: 90px;
    height: 90px;
    margin: 0 auto var(--spacing-sm);
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: white;
    transition: transform 0.3s ease;
}

.team-member:hover .team-avatar {
    transform: scale(1.05);
}

.team-member h5 {
    font-size: var(--font-size-sm);
    font-weight: 600;
}

/* ============================================
   Apps Grid
   ============================================ */
.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.app-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    backdrop-filter: blur(20px);
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.app-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-light);
}

.app-card-header {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}
.app-icon {
    width: 56px;
    height: 56px;
    flex-shrink: 0;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.app-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-md);
}

.app-info h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

.app-info p {
    font-size: var(--font-size-sm);
}

.app-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-top: auto;
}

.app-link-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-glass-strong);
    border: 1px solid var(--border-subtle);
    transition: var(--transition-fast);
    text-decoration: none;
    cursor: pointer;
}

.app-link-btn:hover {
    color: var(--text-primary);
    border-color: var(--border-light);
    background: rgba(255, 255, 255, 0.1);
}

.app-link-btn svg {
    width: 14px;
    height: 14px;
}

/* App Screenshot Thumbnail */
.app-screenshot {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 16 / 9;
    background: var(--bg-tertiary);
}

.app-screenshot img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.app-screenshot-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.app-screenshot-overlay svg {
    width: 32px;
    height: 32px;
    color: white;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.4));
}

.app-screenshot:hover img {
    transform: scale(1.05);
}

.app-screenshot:hover .app-screenshot-overlay {
    opacity: 1;
}

/* Lightbox Modal */
.app-lightbox {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(12px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    padding: var(--spacing-lg);
}

.app-lightbox.active {
    opacity: 1;
    visibility: visible;
}

.app-lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 85vh;
    transform: scale(0.9);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.app-lightbox.active .app-lightbox-content {
    transform: scale(1);
}

.app-lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    object-fit: contain;
}

.app-lightbox-close {
    position: absolute;
    top: -12px;
    right: -12px;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: 18px;
    line-height: 1;
}

.app-lightbox-close:hover {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
}

.app-lightbox-title {
    text-align: center;
    margin-top: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}
/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    background: var(--gradient-hero);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(10, 132, 255, 0.1) 0%, transparent 70%);
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand {
    max-width: 300px;
}

.footer-brand .logo {
    margin-bottom: var(--spacing-md);
}

.footer-brand p {
    font-size: var(--font-size-sm);
}

.footer-links h6 {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-links a {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-subtle);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

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

.footer-social a {
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

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

.footer-social svg {
    width: 20px;
    height: 20px;
}

/* ============================================
   Utilities
   ============================================ */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.mt-sm {
    margin-top: var(--spacing-sm);
}

.mt-md {
    margin-top: var(--spacing-md);
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mt-xl {
    margin-top: var(--spacing-xl);
}

.mb-sm {
    margin-bottom: var(--spacing-sm);
}

.mb-md {
    margin-bottom: var(--spacing-md);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

.mb-xl {
    margin-bottom: var(--spacing-xl);
}

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

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

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

/* Scroll animations - elementos começam visíveis por segurança */
.animate-on-scroll {
    opacity: 0.3;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.animate-on-scroll.animate-visible {
    opacity: 1;
    transform: translateY(0);
}

.animate-delay-1 {
    animation-delay: 0.1s;
}

.animate-delay-2 {
    animation-delay: 0.2s;
}

.animate-delay-3 {
    animation-delay: 0.3s;
}

.animate-delay-4 {
    animation-delay: 0.4s;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.5rem;
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        max-width: 320px;
        height: 100vh;
        background: var(--bg-secondary);
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-2xl) var(--spacing-lg);
        transition: right var(--transition-base);
        box-shadow: var(--shadow-lg);
        overflow-y: auto;
        overscroll-behavior: contain;
    }

    .nav.active {
        right: 0;
    }

    .nav-link {
        font-size: var(--font-size-lg);
        padding: var(--spacing-sm) 0;
    }

    .nav-dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        background: transparent;
        border: none;
        box-shadow: none;
        padding-left: var(--spacing-md);
    }

    .menu-toggle {
        display: flex;
    }

    .hero {
        min-height: auto;
        padding: calc(80px + var(--spacing-xl)) var(--spacing-md) var(--spacing-2xl);
    }

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

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

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

    .changelog-toolbar {
        justify-content: stretch;
    }

    .changelog-search {
        width: 100%;
    }

    .changelog-tabs {
        grid-template-columns: 1fr;
    }

    .changelog-tab {
        min-height: auto;
    }

    .changelog-panel-summary {
        grid-template-columns: 1fr;
        padding: var(--spacing-md);
    }

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

    .changelog-timeline::before,
    .changelog-release::before {
        display: none;
    }

    .changelog-release {
        margin-left: 0;
        padding: var(--spacing-md);
        border-radius: var(--radius-lg);
    }

    .changelog-release-header {
        flex-direction: column;
    }

    .changelog-release-categories {
        justify-content: flex-start;
        max-width: none;
    }

    .changelog-date {
        font-size: var(--font-size-lg);
    }

    .changelog-item {
        grid-template-columns: minmax(0, 1fr);
    }

    .changelog-item-marker {
        display: none;
    }

    .team-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }

    .supporters-grid {
        grid-template-columns: minmax(0, 240px);
        gap: var(--spacing-sm);
    }

    .supporter-logo {
        min-height: 142px;
        padding: 14px 18px;
    }

    .supporter-logo img {
        max-width: 192px;
        max-height: 110px;
    }

    .supporter-logo-large {
        width: 100%;
        min-height: 228px;
    }

    .supporter-logo-large img {
        max-width: 220px;
        max-height: 204px;
    }

    .team-avatar {
        width: 70px;
        height: 70px;
        font-size: var(--font-size-xl);
    }

    .footer-content {
        flex-direction: column;
    }

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

    /* Reduce motion for mobile */
    .card:hover,
    .de-card:hover,
    .supporter-logo:hover,
    .team-member:hover {
        transform: translateY(-4px);
    }
}

/* ============================================
   Section Reveal Animation
   ============================================ */
.section {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* First section should be visible by default */
.hero+.section {
    opacity: 1;
    transform: none;
}

@media (max-width: 768px) {
    .section {
        opacity: 1;
        transform: none;
    }
}

/* ============================================
   Additional Visual Enhancements
   ============================================ */

/* Glow effect on focus for accessibility */
.btn:focus-visible,
.nav-link:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 4px;
}

/* Selection color */
::selection {
    background: rgba(10, 132, 255, 0.4);
    color: var(--text-primary);
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    border: 2px solid var(--bg-secondary);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}

/* ============================================
   Language Selector (i18n)
   ============================================ */
.lang-selector {
    position: relative;
    margin-left: var(--spacing-sm);
}

.lang-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
}

.lang-toggle:hover {
    background: var(--bg-glass-strong);
    color: var(--text-primary);
    border-color: var(--border-light);
}

.lang-toggle svg {
    transition: var(--transition-fast);
}

.lang-toggle .lang-code {
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    min-width: 180px;
    max-height: 320px;
    overflow-y: auto;
    overflow-x: hidden;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-fast);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-dropdown);
    /* Forçar scroll visível */
    scrollbar-width: thin;
    scrollbar-color: var(--bg-tertiary) transparent;
}

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

.lang-option {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 10px 12px;
    border: none;
    background: transparent;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    text-align: left;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

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

.lang-option.active {
    background: rgba(10, 132, 255, 0.15);
    color: var(--accent-blue);
}

.lang-flag {
    font-size: 1.1em;
}

.lang-name {
    flex: 1;
}

/* Custom scrollbar for language dropdown */
.lang-dropdown::-webkit-scrollbar {
    width: 6px;
}

.lang-dropdown::-webkit-scrollbar-track {
    background: transparent;
}

.lang-dropdown::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
}

.lang-dropdown::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}

/* Mobile responsiveness for language selector */
@media (max-width: 768px) {
    .lang-selector {
        margin-left: 0;
        margin-top: var(--spacing-md);
        width: 100%;
    }

    .lang-toggle {
        width: 100%;
        justify-content: center;
        padding: var(--spacing-sm) var(--spacing-md);
        background: var(--bg-glass);
    }

    .lang-dropdown {
        position: static;
        margin-top: var(--spacing-xs);
        max-height: 200px;
        width: 100%;
        opacity: 0;
        visibility: hidden;
        transform: none;
        display: none;
    }

    .lang-dropdown.active {
        opacity: 1;
        visibility: visible;
        display: block;
    }
}