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

:root {
    /* PALETA REDESIGN - Roxo + Branco */
    --primary: #5f249f;           /* Roxo escuro principal */
    --primary-light: #8b5cf6;     /* Roxo claro (hover/estados) */
    --primary-dark: #4c21b6;      /* Roxo mais escuro (hover) */
    --secondary: #ffffff;         /* Branco */
    --text-primary: #1f2937;      /* Cinza escuro texto */
    --text-secondary: #6b7280;    /* Cinza texto secundário */
    --text-light: #ffffff;        /* Texto branco */
    --bg-white: #ffffff;
    --bg-purple: #5f249f;
    --bg-purple-dark: #3d1a66;    /* Roxo escuro para footer */
    --border: #e5e7eb;
    --border-purple: rgba(95, 36, 159, 0.2);
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.15);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.7;
    color: var(--text-primary);
    background: var(--bg-white);
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    /* BIBLIA-DE-BOLSO: Flex layout para sticky footer */
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* REDESIGN: Hierarquia tipográfica equilibrada */
h1, .hero-title {
    font-family: 'Inter', sans-serif;
    font-weight: 900;
    font-size: clamp(1.75rem, 4vw, 2.25rem);  /* 28-36px */
    line-height: 1.15;
    letter-spacing: -0.02em;
}

h2 {
    font-family: 'Inter', sans-serif;
    font-weight: 800;
    font-size: clamp(1.375rem, 3vw, 1.75rem);  /* 22-28px */
    line-height: 1.25;
    letter-spacing: -0.01em;
}

h3 {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);  /* 18-22px */
    line-height: 1.35;
}

p {
    line-height: 1.7;
}

/* BIBLIA-DE-BOLSO: Container principal para empurrar footer */
main {
    flex: 1;
}

/* Navegação Fixa Redesign */
.nav {
    position: sticky;
    top: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0;
    z-index: 100;
    height: 64px;
    display: flex;
    align-items: center;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    height: 100%;
}

.nav-logo {
    font-size: 20px;
    font-weight: 800;
    color: var(--primary);
    transform: scale(0.9);
}

.nav-cta {
    background: var(--primary);
    color: white;
    padding: 10px 20px;
    border-radius: 24px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.2s ease;
    height: 44px;
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
}

.nav-cta:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

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

.section {
    padding: 120px 20px;
}

.section-alt {
    background: var(--bg-light);
}