/* =========================================
   VARIÁVEIS (Design System Premium)
========================================= */
:root {
    /* Cores */
    --primary: #0B1F3A;
    --accent: #C9A227;
    --background: #FFFFFF;
    --text-main: #111827;
    --text-muted: #4B5563;
    --border: rgba(11, 31, 58, 0.06); 
    --white: #FFFFFF;
    
    /* Espaçamentos & Layout */
    --container-width: 1120px;
    --section-padding: 160px 0; 
    
    /* Border Radius (Consistência matemática) */
    --radius-btn: 10px;
    --radius-card: 16px;
    --radius-capsule: 999px;
    --radius-panel: 32px; 
    
    /* Animações */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1); 
    --transition-fast: 180ms var(--ease-out);
    --transition-base: 250ms var(--ease-out);
    --transition-slow: 350ms var(--ease-out);
}

/* =========================================
   RESETS, TYPOGRAPHY & ANTI-ALIASING
========================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

h1, h2, h3 {
    font-weight: 500;
    letter-spacing: -0.03em;
    line-height: 1.15;
}

h1 {
    font-size: 4.5rem;
    color: var(--white);
    margin-bottom: 24px;
}

h2 {
    font-size: 2.75rem;
    margin-bottom: 24px;
    color: var(--primary);
}

h3 {
    font-size: 1.25rem;
    color: var(--primary);
}

p {
    color: var(--text-muted);
    font-size: 1.125rem;
    margin-bottom: 0; 
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-base);
}

/* =========================================
   BOTÕES (Engenharia Premium)
========================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 14px 28px;
    border-radius: var(--radius-btn);
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
    border: 1px solid transparent;
    user-select: none;
}

.btn-primary {
    background: linear-gradient(180deg, var(--accent) 0%, #BA9522 100%);
    color: var(--primary);
    box-shadow: 0 2px 10px rgba(201, 162, 39, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.btn-primary:hover {
    background: linear-gradient(180deg, #D4B03B 0%, var(--accent) 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(201, 162, 39, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.btn-outline {
    border-color: rgba(255, 255, 255, 0.15);
    color: var(--white);
}

.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.06);
}

.icon-small {
    width: 18px;
    height: 18px;
}

/* =========================================
   SEÇÕES, GRID & DIVISORES
========================================= */
.section {
    padding: var(--section-padding);
    position: relative;
}

.section-divider {
    border-bottom: 1px solid var(--border);
}

/* Grid Perfeito */
.bg-grid::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(to right, rgba(11, 31, 58, 0.025) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(11, 31, 58, 0.025) 1px, transparent 1px);
    background-size: 64px 64px;
    z-index: 0;
    pointer-events: none;
}

.bg-grid .container {
    position: relative;
    z-index: 1;
}

.section-header {
    margin-bottom: 80px;
}

.section-header.expanded {
    max-width: 100%;
}

.section-header.expanded .constrained-p {
    max-width: 760px;
}

/* =========================================
   NAVBAR (Cápsula Flutuante)
========================================= */
.navbar-wrapper {
    position: fixed;
    top: 24px;
    width: 100%;
    z-index: 100;
    display: flex;
    justify-content: center;
    pointer-events: none;
}

.navbar {
    width: calc(100% - 48px);
    max-width: 960px;
    background: rgba(255, 255, 255, 0.06); 
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-capsule);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 12px 32px;
    transition: background var(--transition-slow), border-color var(--transition-slow), box-shadow var(--transition-slow);
    pointer-events: auto;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.88);
    border-color: rgba(11, 31, 58, 0.06);
    box-shadow: 0 16px 40px rgba(11, 31, 58, 0.04), 0 4px 12px rgba(11, 31, 58, 0.02);
}

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

.logo {
    font-weight: 600;
    font-size: 1.3rem; 
    letter-spacing: 0.12em;
    color: var(--white);
    transition: color var(--transition-base);
}

.navbar.scrolled .logo {
    color: var(--primary);
}

.navbar.scrolled .btn-outline {
    border-color: var(--border);
    color: var(--primary);
}

.navbar.scrolled .btn-outline:hover {
    background-color: #F8FAFC;
}

/* =========================================
   HERO 
========================================= */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background-color: #040A12;
}

.hero-layer {
    position: absolute;
    inset: -30px; 
    will-change: transform;
}

.hero-bg-layer {
    background-image: url('assets/images/hero-background.jpg');
    background-position: center;
    background-size: cover;
    z-index: 1;
}

.hero-gradient-layer {
    z-index: 2;
    background: linear-gradient(135deg, rgba(11, 31, 58, 0.75) 0%, rgba(5, 15, 28, 0.92) 100%);
    background-size: 200% 200%;
    animation: heroGradientShift 30s ease-in-out infinite alternate;
}

@keyframes heroGradientShift {
    0% { background-position: 0% 0%; }
    100% { background-position: 100% 100%; }
}

.hero-light-layer {
    z-index: 3;
    pointer-events: none;
}

.light-gold {
    position: absolute;
    top: 20%;
    left: 30%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(201, 162, 39, 0.04) 0%, transparent 60%);
    transform: translate(-50%, -50%);
}

.light-blue {
    position: absolute;
    bottom: -10%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(11, 31, 58, 0.15) 0%, transparent 60%);
    transform: translate(-50%, -50%);
}

.hero-vignette {
    position: absolute;
    inset: 0;
    box-shadow: inset 0 0 160px rgba(0, 0, 0, 0.65);
    z-index: 4;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 5;
    max-width: 860px;
    transform: translateY(-20px);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-content p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.35rem;
    line-height: 1.6;
    margin-bottom: 48px;
    max-width: 680px;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.4);
    z-index: 10;
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.scroll-indicator:hover {
    color: var(--white);
    transform: translate(-50%, 4px);
}

/* =========================================
   CARDS 
========================================= */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 48px 40px;
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 40px; 
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    box-shadow: 0 4px 20px rgba(11, 31, 58, 0.02);
}

.card-text-group {
    display: flex;
    flex-direction: column;
    gap: 12px; 
}

.card:hover {
    transform: translateY(-5px); 
    box-shadow: 0 16px 48px rgba(11, 31, 58, 0.07); 
}

.card-icon {
    color: var(--primary);
    width: 28px;
    height: 28px;
    transition: color var(--transition-base);
}

.card:hover .card-icon {
    color: var(--accent); 
}

/* =========================================
   COMO PENSAMOS
========================================= */
#como-pensamos {
    background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 25%, #F3F5F8 50%, #F8FAFC 75%, #FFFFFF 100%);
    padding: 190px 0;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
}
.align-center { align-items: center; }

.text-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.elegant-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.elegant-list li {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 1.125rem;
    color: var(--primary);
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
}
.elegant-list li:last-child { border-bottom: none; }

.list-icon {
    color: var(--accent);
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* =========================================
   SOLUÇÕES
========================================= */
.grid-auto {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.card-small {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px 28px;
    border: 1px solid var(--border);
    border-radius: var(--radius-btn);
    background: var(--white);
    color: var(--primary);
    font-weight: 500;
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
    box-shadow: 0 2px 10px rgba(11, 31, 58, 0.015);
}

.card-small i {
    color: var(--text-muted);
    width: 22px;
    height: 22px;
    transition: color var(--transition-base);
}

.card-small:hover {
    transform: translateY(-4px);
    border-color: rgba(11, 31, 58, 0.1);
    box-shadow: 0 12px 32px rgba(11, 31, 58, 0.06);
}

.card-small:hover i {
    color: var(--accent);
}

/* =========================================
   CTA FINAL (Card Flutuante Premium)
========================================= */
.cta-section {
    background-color: var(--background);
    /* Respiro superior reduzido em ~30px (90px ao invés de 120px) para amarrar o ritmo */
    padding: 90px 0 160px;
}

/* Container estendido: ~15% maior que o container padrão (1120 -> 1280px) */
.cta-card-container {
    max-width: 1280px;
}

.cta-card {
    background: radial-gradient(ellipse at top, #0d2546 0%, #0B1F3A 100%);
    border-radius: var(--radius-panel);
    padding: 120px 48px;
    position: relative;
    overflow: hidden;
    text-align: center;
    
    box-shadow: 0 32px 80px rgba(11, 31, 58, 0.08), 0 8px 32px rgba(11, 31, 58, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.05); 
}

.cta-texture {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
    filter: blur(0.5px);
    -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,1) 0%, transparent 70%);
    mask-image: radial-gradient(ellipse at center, rgba(0,0,0,1) 0%, transparent 70%);
    z-index: 1;
    pointer-events: none;
}

.cta-lighting-title {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 500px;
    background: radial-gradient(ellipse, rgba(255, 255, 255, 0.025) 0%, transparent 60%);
    pointer-events: none;
    z-index: 2;
}

.cta-content {
    position: relative;
    z-index: 3;
    max-width: 720px;
    margin: 0 auto;
}

.cta-card h2 { color: var(--white); }
.cta-card p {
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 56px; 
    font-size: 1.25rem;
}

.cta-btn-wrapper {
    position: relative;
    display: inline-block;
}

.cta-btn-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 140%;
    height: 180%;
    background: radial-gradient(ellipse, rgba(201, 162, 39, 0.12) 0%, transparent 65%);
    border-radius: 50px;
    z-index: -1;
    pointer-events: none;
    opacity: 0.8;
    transition: opacity var(--transition-base);
}

.cta-btn-wrapper:hover .cta-btn-glow {
    opacity: 1;
}

/* =========================================
   FOOTER
========================================= */
.footer {
    padding: 64px 0; 
    background-color: var(--white);
    border-top: 1px solid var(--border);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9375rem;
    color: var(--text-muted);
}

.footer-logo {
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--primary);
}

.footer-links {
    display: flex;
    gap: 56px; 
}
.footer-links a:hover { color: var(--primary); }

/* =========================================
   BOTÃO VOLTAR AO TOPO
========================================= */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 46px; 
    height: 46px;
    border-radius: 50%;
    background-color: var(--primary);
    color: var(--white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    transition: opacity var(--transition-base), transform var(--transition-base), background-color var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: 0 4px 16px rgba(11, 31, 58, 0.1);
    z-index: 99;
    pointer-events: none;
}

.back-to-top.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.back-to-top:hover {
    background-color: var(--accent);
    color: var(--primary);
    box-shadow: 0 8px 24px rgba(201, 162, 39, 0.25);
}

/* =========================================
   MICROINTERAÇÕES GERAIS (Observer)
========================================= */
.fade-in {
    opacity: 0;
    transform: translateY(24px); 
    transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out);
    will-change: opacity, transform;
}

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

/* =========================================
   RESPONSIVIDADE
========================================= */
@media (max-width: 1024px) {
    h1 { font-size: 3.75rem; }
    h2 { font-size: 2.25rem; }
    .grid-2 { gap: 64px; }
}

@media (max-width: 768px) {
    :root { --section-padding: 100px 0; }
    #como-pensamos { padding: 120px 0; }
    h1 { font-size: 2.75rem; }
    h2 { font-size: 2rem; }
    .grid-2, .grid-3 { grid-template-columns: 1fr; gap: 32px; }
    .hero-content { transform: translateY(0); }
    .navbar { width: calc(100% - 32px); padding: 12px 24px; }
    .back-to-top { bottom: 24px; right: 24px; }
    .footer-container { flex-direction: column; gap: 32px; text-align: center; }
    
    /* Mobile - mantém o CTA mais compacto horizontalmente */
    .cta-section { padding: 64px 0 80px; }
    .cta-card {
        padding: 80px 24px;
        border-radius: 28px;
    }
    .cta-card p {
        font-size: 1.125rem;
        margin-bottom: 40px;
    }
}