/**
 * Landing Page Custom Styles - Sorteios Fácil
 * 
 * Estilos customizados para complementar o Tailwind CSS
 * com animações e efeitos especiais para a landing page.
 * 
 * @author Sorteios Fácil
 * @version 1.0
 */

/* ============================
   VARIÁVEIS CSS GLOBAIS
   ============================ */

:root {
    --primary-blue: #3B82F6;
    --primary-purple: #8B5CF6;
    --accent-yellow: #F59E0B;
    --success-green: #10B981;
    --error-red: #EF4444;
    --warning-orange: #F97316;
    
    --gradient-primary: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-purple) 100%);
    --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-card: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    
    --shadow-soft: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-medium: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-large: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 50px rgba(59, 130, 246, 0.3);
    
    --border-radius-small: 8px;
    --border-radius-medium: 12px;
    --border-radius-large: 20px;
    --border-radius-xl: 24px;
    
    --transition-fast: 0.15s ease-in-out;
    --transition-medium: 0.3s ease-in-out;
    --transition-slow: 0.6s ease-in-out;
}

/* ============================
   RESET E BASE STYLES
   ============================ */

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================
   GRADIENT BACKGROUNDS
   ============================ */

.gradient-bg {
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.gradient-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

.gradient-border {
    position: relative;
    background: var(--gradient-primary);
    padding: 2px;
    border-radius: var(--border-radius-large);
}

.gradient-border > div {
    background: white;
    border-radius: calc(var(--border-radius-large) - 2px);
}

/* ============================
   NAVIGATION STYLES
   ============================ */

nav {
    transition: all var(--transition-medium);
    z-index: 1000;
}

nav.navbar-scrolled {
    background: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-soft);
}

.nav-logo {
    transition: transform var(--transition-fast);
}

.nav-logo:hover {
    transform: scale(1.05);
}

/* ============================
   HERO SECTION
   ============================ */

.hero-title {
    font-weight: 800;
    letter-spacing: -0.025em;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.floating {
    animation: floating 6s ease-in-out infinite;
}

.floating:nth-child(2) {
    animation-delay: -2s;
}

.floating:nth-child(3) {
    animation-delay: -4s;
}

@keyframes floating {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    25% { transform: translateY(-20px) rotate(1deg); }
    50% { transform: translateY(-10px) rotate(-1deg); }
    75% { transform: translateY(-15px) rotate(0.5deg); }
}

/* ============================
   BUTTON STYLES
   ============================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1rem;
    line-height: 1.5;
    border-radius: var(--border-radius-medium);
    transition: all var(--transition-medium);
    text-decoration: none;
    cursor: pointer;
    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 ease;
}

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

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    padding: 12px 32px;
    box-shadow: var(--shadow-medium);
}

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

.btn-secondary {
    background: transparent;
    color: white;
    padding: 12px 32px;
    border: 2px solid white;
}

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

.btn-pulse {
    animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        transform: scale(1);
        box-shadow: var(--shadow-medium);
    }
    50% {
        transform: scale(1.05);
        box-shadow: var(--shadow-glow);
    }
}

/* ============================
   CARD COMPONENTS
   ============================ */

.card {
    background: white;
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-soft);
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.card-hover:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-large);
}

.card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: var(--gradient-card);
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.card:hover::before {
    opacity: 1;
}

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

.feature-card {
    background: white;
    border-radius: var(--border-radius-large);
    padding: 2rem;
    box-shadow: var(--shadow-soft);
    transition: all var(--transition-medium);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-large);
    border-color: var(--primary-blue);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-large);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: all var(--transition-medium);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    box-shadow: var(--shadow-glow);
}

/* ============================
   PRICING CARDS
   ============================ */

.pricing-card {
    background: white;
    border-radius: var(--border-radius-large);
    padding: 2rem;
    box-shadow: var(--shadow-medium);
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
    border: 2px solid transparent;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-large);
}

.pricing-card.featured {
    background: var(--gradient-primary);
    color: white;
    transform: scale(1.05);
    z-index: 10;
    position: relative;
}

.pricing-card.featured::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-large);
    z-index: -1;
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-yellow);
    color: #1F2937;
    padding: 8px 24px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.875rem;
    box-shadow: var(--shadow-medium);
}

/* ============================
   TESTIMONIAL CARDS
   ============================ */

.testimonial-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-large);
    padding: 2rem;
    transition: all var(--transition-medium);
}

.testimonial-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.testimonial-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 3px solid rgba(255, 255, 255, 0.3);
    transition: all var(--transition-medium);
}

.testimonial-card:hover .testimonial-avatar {
    border-color: var(--accent-yellow);
    transform: scale(1.1);
}

/* ============================
   FAQ SECTION
   ============================ */

.faq-item {
    background: #F9FAFB;
    border-radius: var(--border-radius-medium);
    padding: 1.5rem;
    margin-bottom: 1rem;
    cursor: pointer;
    transition: all var(--transition-medium);
    border: 1px solid #E5E7EB;
}

.faq-item:hover {
    background: #F3F4F6;
    border-color: var(--primary-blue);
    transform: translateX(5px);
}

.faq-item.active {
    background: #EBF8FF;
    border-color: var(--primary-blue);
}

.faq-question {
    font-weight: 600;
    color: #1F2937;
    display: flex;
    justify-content: between;
    align-items: center;
}

.faq-answer {
    color: #6B7280;
    margin-top: 1rem;
    line-height: 1.7;
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: all var(--transition-medium);
}

.faq-item.active .faq-answer {
    opacity: 1;
    max-height: 200px;
}

.faq-icon {
    transition: transform var(--transition-medium);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

/* ============================
   COUNTER ANIMATIONS
   ============================ */

.stats-counter {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent-yellow);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    display: block;
    transition: all var(--transition-medium);
}

.stats-counter.counting {
    transform: scale(1.1);
}

.stats-item {
    text-align: center;
    padding: 1rem;
    transition: all var(--transition-medium);
}

.stats-item:hover {
    transform: translateY(-5px);
}

.stats-item:hover .stats-counter {
    color: white;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
}

/* ============================
   FORM STYLES
   ============================ */

.form-field {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #E5E7EB;
    border-radius: var(--border-radius-medium);
    font-size: 1rem;
    transition: all var(--transition-medium);
    background: white;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-input.error {
    border-color: var(--error-red);
}

.form-input.success {
    border-color: var(--success-green);
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #374151;
}

.error-message {
    color: var(--error-red);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
}

.error-message::before {
    content: '⚠';
    margin-right: 0.5rem;
}

/* ============================
   NOTIFICATION SYSTEM
   ============================ */

.notification {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 9999;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius-medium);
    box-shadow: var(--shadow-large);
    max-width: 400px;
    transition: all var(--transition-medium);
    transform: translateX(100%);
}

.notification.show {
    transform: translateX(0);
}

.notification.success {
    background: var(--success-green);
    color: white;
}

.notification.error {
    background: var(--error-red);
    color: white;
}

.notification.warning {
    background: var(--warning-orange);
    color: white;
}

.notification.info {
    background: var(--primary-blue);
    color: white;
}

/* ============================
   SCROLL INDICATORS
   ============================ */

.scroll-indicator {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary-blue);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-medium);
    z-index: 1000;
    opacity: 0;
    transform: translateY(20px);
}

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

.scroll-indicator:hover {
    background: var(--primary-purple);
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    background: var(--gradient-primary);
    z-index: 1000;
    transition: width var(--transition-fast);
}

/* ============================
   LOADING STATES
   ============================ */

.loading {
    opacity: 0.7;
    pointer-events: none;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ============================
   UTILITY ANIMATIONS
   ============================ */

.fade-in {
    animation: fadeIn var(--transition-slow) ease-out;
}

.fade-in-up {
    animation: fadeInUp var(--transition-slow) ease-out;
}

.fade-in-down {
    animation: fadeInDown var(--transition-slow) ease-out;
}

.fade-in-left {
    animation: fadeInLeft var(--transition-slow) ease-out;
}

.fade-in-right {
    animation: fadeInRight var(--transition-slow) ease-out;
}

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

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

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

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

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

/* ============================
   RESPONSIVE DESIGN
   ============================ */

@media (max-width: 768px) {
    :root {
        --border-radius-large: 16px;
        --border-radius-xl: 20px;
    }
    
    .hero-title {
        font-size: 2.5rem;
        line-height: 1.1;
    }
    
    .stats-counter {
        font-size: 2rem;
    }
    
    .pricing-card.featured {
        transform: none;
        margin: 1rem 0;
    }
    
    .feature-card,
    .pricing-card,
    .testimonial-card {
        padding: 1.5rem;
    }
    
    .notification {
        left: 1rem;
        right: 1rem;
        max-width: none;
    }
    
    .btn {
        padding: 14px 28px;
        font-size: 1.1rem;
    }
    
    .floating {
        display: none; /* Hide floating elements on mobile for performance */
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .feature-icon {
        width: 48px;
        height: 48px;
    }
    
    .stats-counter {
        font-size: 1.75rem;
    }
}

/* ============================
   DARK MODE SUPPORT
   ============================ */

@media (prefers-color-scheme: dark) {
    .card {
        background: #1F2937;
        color: white;
    }
    
    .form-input {
        background: #1F2937;
        border-color: #374151;
        color: white;
    }
    
    .form-input:focus {
        border-color: var(--primary-blue);
    }
}

/* ============================
   ACCESSIBILITY
   ============================ */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .floating {
        animation: none;
    }
    
    .btn-pulse {
        animation: none;
    }
}

/* ============================
   HIGH CONTRAST MODE
   ============================ */

@media (prefers-contrast: high) {
    .card {
        border: 2px solid;
    }
    
    .btn-primary {
        border: 2px solid;
    }
    
    .form-input {
        border-width: 3px;
    }
}

/* ============================
   PRINT STYLES
   ============================ */

@media print {
    .floating,
    .btn-pulse,
    .notification,
    .scroll-indicator,
    nav,
    .testimonial-card {
        display: none !important;
    }
    
    .gradient-bg {
        background: white !important;
        color: black !important;
    }
    
    .gradient-text {
        color: black !important;
        -webkit-text-fill-color: black !important;
    }
}