/* ============================================
   BUSCAR PDFs - PREMIUM DESIGN SYSTEM
   ============================================ */

:root {
    /* Cores Primárias - Gradientes Vibrantes */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --success-gradient: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);

    /* Cores Sólidas */
    --primary: #667eea;
    --primary-dark: #5568d3;
    --secondary: #f5576c;
    --accent: #00f2fe;

    /* Neutros */
    --bg-light: #ffffff;
    --bg-gray: #f8f9fa;
    --bg-dark: #1a1a2e;
    --text-primary: #1c1c1e;
    --text-secondary: #6c757d;
    --text-light: #ffffff;

    /* Sombras */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.20);

    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.18);

    /* Transições */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

/* ============================================
   HEADER - Sticky com Glassmorphism
   ============================================ */

.top-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-normal);
}

.top-header:hover {
    box-shadow: var(--shadow-md);
}

.header-flex {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    height: 50px;
    transition: transform var(--transition-normal);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.logo:hover {
    transform: scale(1.05) rotate(-2deg);
}

.header-flex nav {
    display: flex;
    gap: 32px;
}

.header-flex nav a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    position: relative;
    transition: color var(--transition-fast);
    padding: 8px 12px;
}

.header-flex nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--primary-gradient);
    border-radius: 2px;
    transition: width var(--transition-normal);
}

.header-flex nav a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    border-radius: 8px;
    opacity: 0;
    transition: opacity var(--transition-fast);
    z-index: -1;
}

.header-flex nav a:hover::before {
    opacity: 1;
}

.header-flex nav a:hover {
    color: var(--primary);
}

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

/* ============================================
   HERO - Gradiente Animado
   ============================================ */

.hero {
    position: relative;
    padding: 120px 32px 80px;
    text-align: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-size: 200% 200%;
    animation: gradientShift 15s ease infinite;
    overflow: hidden;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="2" fill="white" opacity="0.1"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
    animation: fadeInUp 1s ease;
}

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

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

.hero h1 {
    font-size: clamp(40px, 6vw, 72px);
    font-weight: 800;
    margin-bottom: 24px;
    color: var(--text-light);
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    letter-spacing: -1px;
}

.hero p {
    font-size: clamp(18px, 2vw, 22px);
    color: rgba(255, 255, 255, 0.95);
    max-width: 700px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   BUTTONS - Premium com Animações
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--text-light);
    color: var(--primary);
    padding: 16px 36px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    font-size: 16px;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(102, 126, 234, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

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

.btn:active {
    transform: translateY(0);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--text-light);
    padding: 16px 36px;
    border-radius: 12px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    text-decoration: none;
    font-weight: 700;
    font-size: 16px;
    transition: all var(--transition-normal);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

/* ============================================
   HERO IMAGE - Com Efeito Float
   ============================================ */

.hero-image {
    margin-top: 60px;
    position: relative;
    z-index: 2;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }
}

.hero-image img {
    max-width: 900px;
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    border: 4px solid rgba(255, 255, 255, 0.2);
    transition: transform var(--transition-normal);
}

.hero-image img:hover {
    transform: scale(1.02);
}

/* ============================================
   SECTIONS - Espaçamento e Layout
   ============================================ */

.section {
    padding: 100px 32px;
    max-width: 1280px;
    margin: 0 auto;
}

.section h2 {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    text-align: center;
    margin-bottom: 60px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   CARDS - Glassmorphism e Hover Effects
   ============================================ */

.grid {
    display: grid;
    gap: 32px;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
    background: var(--bg-gray);
    padding: 40px 32px;
    border-radius: 20px;
    text-align: center;
    transition: all var(--transition-normal);
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.card:hover::before {
    transform: scaleX(1);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(102, 126, 234, 0.2);
}

.card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============================================
   SCREENSHOTS - Grid Responsivo
   ============================================ */

.screenshot-grid {
    display: grid;
    gap: 40px;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.screenshot {
    position: relative;
    overflow: hidden;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.screenshot img {
    width: 100%;
    display: block;
    border-radius: 16px;
    transition: transform var(--transition-slow);
}

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

.screenshot p {
    text-align: center;
    margin-top: 16px;
    font-weight: 600;
    color: var(--text-secondary);
}

/* ============================================
   PLANOS - Cards Premium
   ============================================ */

.planos-grid {
    display: grid;
    gap: 40px;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    margin-top: 40px;
}

.plano-card {
    background: var(--bg-light);
    padding: 48px 36px;
    border-radius: 24px;
    text-align: center;
    border: 2px solid #e9ecef;
    transition: all var(--transition-normal);
    position: relative;
}

.plano-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary);
}

.plano-card h3 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.plano-card p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.preco {
    font-size: 48px;
    font-weight: 900;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 32px;
}

.destaque {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    border: 3px solid var(--primary);
    transform: scale(1.05);
}

.destaque::before {
    content: '⭐ POPULAR';
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-gradient);
    color: white;
    padding: 8px 24px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 1px;
}

/* ============================================
   FORMULÁRIO DE CONTATO
   ============================================ */

.contato-form {
    max-width: 600px;
    margin: 40px auto 0;
    display: grid;
    gap: 20px;
}

.contato-form input,
.contato-form textarea {
    padding: 18px 20px;
    border-radius: 12px;
    border: 2px solid #e9ecef;
    font-family: inherit;
    font-size: 16px;
    transition: all var(--transition-fast);
    background: var(--bg-light);
}

.contato-form input:focus,
.contato-form textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.contato-form textarea {
    min-height: 150px;
    resize: vertical;
}

.contato-form button {
    cursor: pointer;
    border: none;
    background: var(--primary-gradient);
    color: white;
}

.contato-form button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Mensagens de feedback do formulário */
.form-message {
    padding: 16px 20px;
    border-radius: 12px;
    font-weight: 600;
    text-align: center;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

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

.form-message.success {
    background: linear-gradient(135deg, rgba(67, 233, 123, 0.1) 0%, rgba(56, 249, 215, 0.1) 100%);
    border: 2px solid #43e97b;
    color: #2d8659;
}

.form-message.error {
    background: linear-gradient(135deg, rgba(245, 87, 108, 0.1) 0%, rgba(240, 93, 75, 0.1) 100%);
    border: 2px solid #f5576c;
    color: #c4314b;
}

/* ============================================
   FOOTER
   ============================================ */

footer {
    text-align: center;
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 40px 32px;
    margin-top: 60px;
}

footer p {
    font-size: 14px;
}

/* ============================================
   RESPONSIVIDADE
   ============================================ */

@media (max-width: 768px) {
    .header-flex {
        padding: 0 20px;
    }

    .header-flex nav {
        gap: 16px;
    }

    .header-flex nav a {
        font-size: 14px;
        padding: 6px 8px;
    }

    .hero {
        padding: 80px 20px 60px;
    }

    .section {
        padding: 60px 20px;
    }

    .grid,
    .screenshot-grid,
    .planos-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .destaque {
        transform: scale(1);
    }
}

/* ============================================
   ANIMAÇÕES ADICIONAIS
   ============================================ */

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.8;
    }
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Scroll Reveal Animation */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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