/* Modern BrazilSteam Landing Page Styles */

:root {
    --primary-color: #4f46e5;
    --primary-dark: #3730a3;
    --secondary-color: #06b6d4;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #3b82f6;
    --dark-color: #1f2937;
    --light-color: #f8fafc;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --border-radius: 1rem;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
    padding: 1rem 0;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98) !important;
    box-shadow: var(--shadow-md);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color) !important;
}

.nav-link {
    font-weight: 500;
    color: var(--dark-color) !important;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
    transform: translateX(-50%);
}

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

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

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.2) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-30px) rotate(1deg); }
    66% { transform: translateY(-20px) rotate(-1deg); }
}

.hero-content {
    color: white;
    z-index: 2;
    position: relative;
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.gradient-text {
    background: linear-gradient(135deg, #ffffff 0%, #f0f9ff 50%, #e0f2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    line-height: 1.7;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-buttons {
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.btn {
    font-weight: 600;
    padding: 0.75rem 2rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    height: 500px;
    animation: fadeInLeft 1s ease-out 0.8s both;
}

.hero-logo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.logo-container-modern {
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(20px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    animation: pulse 3s ease-in-out infinite;
}

.logo-container-modern i {
    font-size: 4rem;
    color: white;
}

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    animation: float 6s ease-in-out infinite;
}

.card-1 {
    top: 20%;
    right: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 60%;
    left: 10%;
    animation-delay: 2s;
}

.card-3 {
    bottom: 20%;
    right: 20%;
    animation-delay: 4s;
}

.floating-card i {
    font-size: 1.5rem;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-indicator a {
    color: white;
    font-size: 2rem;
    text-decoration: none;
    opacity: 0.7;
    transition: var(--transition);
}

.scroll-indicator a:hover {
    opacity: 1;
    color: white;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* Stats Section */
.stats-section {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    margin-top: -50px;
    position: relative;
    z-index: 10;
    border-radius: 2rem 2rem 0 0;
}

.stat-item {
    padding: 2rem 1rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-weight: 500;
    color: var(--dark-color);
    opacity: 0.7;
}

/* Systems Section */
.systems-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--dark-color);
    opacity: 0.7;
    line-height: 1.7;
}

.system-card-modern {
    background: white;
    border-radius: var(--border-radius);
    padding: 0;
    border: none;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.system-card-modern:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.system-card-modern:hover .card-glow {
    opacity: 0.1;
}

.card-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
}

.card-header-modern {
    padding: 2rem 2rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.system-icon-modern {
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.system-category .badge {
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
}

.card-body-modern {
    padding: 0 2rem 1rem;
}

.system-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--dark-color);
}

.system-description {
    color: var(--dark-color);
    opacity: 0.7;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.system-stats {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.stat-item-small {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-badge {
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary-color);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 500;
}

.card-footer-modern {
    padding: 1rem 2rem 2rem;
}

.system-btn-modern {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 600;
    transition: var(--transition);
}

.system-btn-modern:hover .btn-icon {
    transform: translateX(5px);
}

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

/* Features Section */
.features-section {
    padding: 5rem 0;
    background: white;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.feature-content h5 {
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.feature-content p {
    color: var(--dark-color);
    opacity: 0.7;
    margin: 0;
}

.features-visual {
    position: relative;
    height: 400px;
}

.feature-card {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.card-mini {
    background: white;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: white;
    font-weight: 600;
    animation: float 4s ease-in-out infinite;
}

.card-mini:nth-child(2) {
    animation-delay: 1s;
    margin-left: 2rem;
}

.card-mini:nth-child(3) {
    animation-delay: 2s;
    margin-left: -1rem;
}

.card-mini i {
    font-size: 1.25rem;
}

/* Contact Section */
.contact-section {
    background: var(--gradient-primary);
    padding: 5rem 0;
}

.contact-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
.footer-section {
    background: var(--dark-color);
    color: white;
}

.footer-brand {
    display: flex;
    align-items: center;
    font-size: 1.25rem;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(10px);
}

.loading-spinner {
    text-align: center;
    color: white;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .floating-card {
        display: none;
    }
    
    .logo-container-modern {
        width: 150px;
        height: 150px;
    }
    
    .logo-container-modern i {
        font-size: 3rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .contact-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .card-header-modern,
    .card-body-modern,
    .card-footer-modern {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
    
    .system-stats {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .feature-item {
        text-align: center;
        flex-direction: column;
    }
}

/* Smooth scroll behavior */
.smooth-scroll {
    scroll-behavior: smooth;
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

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

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}