/* =============================================================
   JRT YOLO SOLUTIONS - Design System
   Inspirado em empresas de TI americanas (Datadog, Cloudflare,
   DigitalOcean, HashiCorp)
   ============================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500&display=swap');

/* ===== TOKENS DE DESIGN ===== */
:root {
    /* === Cores da marca (extraídas do logo) === */
    --brand-cyan:        #00E5FF;
    --brand-cyan-light:  #5EF3FF;
    --brand-cyan-dark:   #00B8D9;
    --brand-navy:        #0B0E1A;
    --brand-navy-light:  #0F1528;
    --brand-card:        #111827;
    --brand-card-border: #1E2D3D;
    --brand-glow:        rgba(0, 229, 255, 0.15);
    --brand-glow-strong: rgba(0, 229, 255, 0.3);

    /* === Paleta neutra === */
    --neutral-900: #0B0E1A;
    --neutral-800: #0F1528;
    --neutral-700: #1A2236;
    --neutral-600: #1E2D3D;
    --neutral-500: #2D4156;
    --neutral-400: #4A6580;
    --neutral-300: #7A8FA6;
    --neutral-200: #A8BBCC;
    --neutral-100: #D4E0EB;
    --neutral-50:  #EEF4F8;
    --white:       #FFFFFF;

    /* === Semânticas === */
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-danger:  #EF4444;
    --color-info:    #3B82F6;

    /* === Tipografia === */
    --font-sans:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono:  'JetBrains Mono', 'Fira Code', monospace;

    /* === Espaçamentos === */
    --space-1:  0.25rem;
    --space-2:  0.5rem;
    --space-3:  0.75rem;
    --space-4:  1rem;
    --space-5:  1.25rem;
    --space-6:  1.5rem;
    --space-8:  2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* === Bordas === */
    --radius-sm:   4px;
    --radius-md:   8px;
    --radius-lg:   12px;
    --radius-xl:   16px;
    --radius-2xl:  24px;
    --radius-full: 9999px;

    /* === Sombras === */
    --shadow-sm:    0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md:    0 4px 12px rgba(0, 0, 0, 0.5);
    --shadow-lg:    0 8px 24px rgba(0, 0, 0, 0.6);
    --shadow-xl:    0 20px 48px rgba(0, 0, 0, 0.7);
    --shadow-cyan:  0 0 20px rgba(0, 229, 255, 0.25);
    --shadow-cyan-lg: 0 0 40px rgba(0, 229, 255, 0.3);

    /* === Transições === */
    --ease-fast:   0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --ease-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --ease-slow:   0.4s cubic-bezier(0.4, 0, 0.2, 1);

    /* Override das variáveis globais do style.css */
    --primary-color:  #00E5FF;
    --primary-dark:   #00B8D9;
    --secondary-color:#00E5FF;
    --accent-color:   #00E5FF;
    --dark-color:     #0B0E1A;
    --font-primary:   'Inter', sans-serif;
}

/* ===== ANIMAÇÕES ===== */
@keyframes gridRadiantMove {
    0% {
        background-position: 0 0, 0 0;
    }
    100% {
        background-position: 60px 60px, 60px 60px;
    }
}

/* ===== RESET BASE ===== */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: var(--font-sans);
    background-color: var(--brand-navy);
    color: var(--neutral-100);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== SCROLLBAR CUSTOM ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--neutral-800); }
::-webkit-scrollbar-thumb { background: var(--brand-cyan-dark); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--brand-cyan); }

/* ===== SELEÇÃO DE TEXTO ===== */
::selection { background: var(--brand-glow-strong); color: var(--brand-cyan); }

/* ===== TIPOGRAFIA ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-sans);
    font-weight: 700;
    line-height: 1.2;
    color: var(--white);
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); font-weight: 800; }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p { color: var(--neutral-300); line-height: 1.75; }

a { color: var(--brand-cyan); text-decoration: none; transition: color var(--ease-fast); }
a:hover { color: var(--brand-cyan-light); }

/* ===== LAYOUT ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.section {
    padding: var(--space-24) 0;
}

.section-sm { padding: var(--space-16) 0; }

/* ===== HEADER & NAVBAR ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all var(--ease-normal);
}

.header.scrolled {
    background: rgba(11, 14, 26, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--brand-card-border);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.navbar {
    background: transparent;
    padding: var(--space-5) 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-8);
}

/* Logo */
.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-shrink: 0;
}

.logo-img {
    height: 44px;
    width: auto;
    object-fit: contain;
}

.logo-text {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: -0.01em;
}

.logo-text span {
    color: var(--brand-cyan);
}

/* Nav links */
.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.nav-link {
    padding: var(--space-2) var(--space-3);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--neutral-300);
    border-radius: var(--radius-md);
    transition: all var(--ease-fast);
    white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
    color: var(--white);
    background: rgba(255,255,255,0.06);
}

/* Chat button no nav */
.nav-link.chat-link {
    background: var(--brand-cyan);
    color: var(--brand-navy) !important;
    font-weight: 600;
    padding: var(--space-2) var(--space-4);
    margin-left: var(--space-2);
}

.nav-link.chat-link:hover {
    background: var(--brand-cyan-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-cyan);
}

/* Lang switcher */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    margin-left: var(--space-3);
    padding-left: var(--space-3);
    border-left: 1px solid var(--neutral-600);
}

.lang-switcher a {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--neutral-400);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    letter-spacing: 0.05em;
    transition: all var(--ease-fast);
}

.lang-switcher a:hover,
.lang-switcher a.active {
    color: var(--brand-cyan);
    background: var(--brand-glow);
}

/* Mobile toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: var(--space-2);
}

.nav-toggle .bar {
    width: 24px;
    height: 2px;
    background: var(--neutral-200);
    border-radius: var(--radius-full);
    transition: all var(--ease-fast);
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
    background: var(--brand-navy);
}

/* Background grid */
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 229, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 229, 255, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    animation: gridRadiantMove 20s linear infinite;
}

/* Glow radial no hero */
.hero::after {
    content: '';
    position: absolute;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(ellipse, rgba(0, 229, 255, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 760px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: rgba(0, 229, 255, 0.08);
    border: 1px solid rgba(0, 229, 255, 0.2);
    color: var(--brand-cyan);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-6);
}

.hero-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--brand-cyan);
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--white);
    margin-bottom: var(--space-6);
}

.hero-title .highlight {
    background: linear-gradient(135deg, var(--brand-cyan) 0%, var(--brand-cyan-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--neutral-300);
    max-width: 580px;
    margin-bottom: var(--space-10);
    line-height: 1.75;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    flex-wrap: wrap;
}

/* ===== BOTÕES ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--ease-normal);
    text-decoration: none;
    white-space: nowrap;
    font-family: var(--font-sans);
}

.btn-primary {
    background: var(--brand-cyan);
    color: var(--brand-navy);
    box-shadow: 0 0 0 0 var(--brand-glow-strong);
}

.btn-primary:hover {
    background: var(--brand-cyan-light);
    color: var(--brand-navy);
    transform: translateY(-2px);
    box-shadow: var(--shadow-cyan-lg);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 1px solid var(--neutral-600);
}

.btn-outline:hover {
    border-color: var(--brand-cyan);
    color: var(--brand-cyan);
    background: var(--brand-glow);
    transform: translateY(-2px);
}

.btn-ghost {
    background: transparent;
    color: var(--neutral-300);
}

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

.btn-lg { padding: var(--space-4) var(--space-8); font-size: 1rem; }
.btn-sm { padding: var(--space-2) var(--space-4); font-size: 0.8125rem; }

/* ===== STATS BAR ===== */
.stats-bar {
    background: var(--brand-card);
    border-top: 1px solid var(--brand-card-border);
    border-bottom: 1px solid var(--brand-card-border);
    padding: var(--space-10) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-8);
    text-align: center;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--brand-cyan);
    letter-spacing: -0.03em;
    line-height: 1;
}

.stat-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--neutral-400);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.stat-divider {
    width: 1px;
    background: var(--neutral-700);
}

/* ===== SEÇÕES PRINCIPAIS ===== */
.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto var(--space-16);
}

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--brand-cyan);
    margin-bottom: var(--space-3);
}

.section-title {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--space-4);
}

.section-desc {
    font-size: 1rem;
    color: var(--neutral-400);
    line-height: 1.75;
}

/* ===== CARDS DE SERVIÇOS ===== */
.services {
    background: var(--brand-navy);
    padding: var(--space-24) 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
}

.service-card {
    background: var(--brand-card);
    border: 1px solid var(--brand-card-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    transition: all var(--ease-normal);
    position: relative;
    overflow: hidden;
    cursor: default;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--brand-cyan), transparent);
    opacity: 0;
    transition: opacity var(--ease-normal);
}

.service-card:hover {
    border-color: rgba(0, 229, 255, 0.3);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5), var(--shadow-cyan);
}

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

.service-icon {
    width: 48px;
    height: 48px;
    background: var(--brand-glow);
    border: 1px solid rgba(0, 229, 255, 0.2);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-5);
    font-size: 1.25rem;
    color: var(--brand-cyan);
    transition: all var(--ease-normal);
}

.service-card:hover .service-icon {
    background: rgba(0, 229, 255, 0.15);
    box-shadow: var(--shadow-cyan);
}

.service-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--space-3);
}

.service-desc {
    font-size: 0.875rem;
    color: var(--neutral-400);
    line-height: 1.7;
    margin-bottom: var(--space-5);
}

.service-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.service-features li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.8125rem;
    color: var(--neutral-300);
}

.service-features li::before {
    content: '';
    width: 5px;
    height: 5px;
    background: var(--brand-cyan);
    border-radius: 50%;
    flex-shrink: 0;
}

/* ===== SEÇÃO ABOUT ===== */
.about {
    background: var(--brand-navy-light);
    padding: var(--space-24) 0;
    position: relative;
    overflow: hidden;
}

.about::before {
    content: '';
    position: absolute;
    right: -200px;
    top: 50%;
    transform: translateY(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 229, 255, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

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

.about-visual {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-card {
    background: var(--brand-card);
    border: 1px solid var(--brand-card-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    width: 100%;
    max-width: 400px;
}

.about-stats-mini {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

.about-stat {
    background: var(--neutral-800);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    text-align: center;
}

.about-stat-num {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--brand-cyan);
    letter-spacing: -0.03em;
}

.about-stat-lbl {
    font-size: 0.75rem;
    color: var(--neutral-400);
    margin-top: var(--space-1);
}

/* ===== SOLUÇÕES ===== */
.solutions {
    background: var(--brand-navy);
    padding: var(--space-24) 0;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
}

.solution-card {
    background: var(--brand-card);
    border: 1px solid var(--brand-card-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    transition: all var(--ease-normal);
}

.solution-card:hover {
    border-color: rgba(0, 229, 255, 0.25);
    box-shadow: var(--shadow-cyan);
}

.solution-number {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--brand-cyan);
    opacity: 0.6;
    margin-bottom: var(--space-4);
}

.solution-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--space-3);
}

.solution-desc {
    font-size: 0.875rem;
    color: var(--neutral-400);
    line-height: 1.7;
    margin-bottom: var(--space-5);
}

.solution-benefits {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.solution-benefits li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.8125rem;
    color: var(--neutral-300);
}

.solution-benefits li i {
    color: var(--color-success);
    font-size: 0.75rem;
    flex-shrink: 0;
}

/* ===== DEPOIMENTOS ===== */
.testimonials {
    background: var(--brand-navy-light);
    padding: var(--space-24) 0;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
}

.testimonial-card {
    background: var(--brand-card);
    border: 1px solid var(--brand-card-border);
    border-radius: var(--radius-xl);
    padding: var(--space-7);
    transition: all var(--ease-normal);
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.testimonial-card:hover {
    border-color: rgba(0, 229, 255, 0.2);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.testimonial-stars {
    display: flex;
    gap: var(--space-1);
    color: var(--color-warning);
    font-size: 0.875rem;
}

.testimonial-text {
    font-size: 0.9375rem;
    color: var(--neutral-200);
    line-height: 1.75;
    flex: 1;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding-top: var(--space-4);
    border-top: 1px solid var(--brand-card-border);
}

.testimonial-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--brand-glow);
    border: 2px solid var(--brand-card-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--brand-cyan);
    flex-shrink: 0;
    overflow: hidden;
}

.testimonial-avatar img { width: 100%; height: 100%; object-fit: cover; }

.testimonial-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--white);
}

.testimonial-role {
    font-size: 0.75rem;
    color: var(--neutral-400);
    margin-top: 2px;
}

/* ===== CTA SECTION ===== */
.cta-section {
    background: var(--brand-card);
    border-top: 1px solid var(--brand-card-border);
    border-bottom: 1px solid var(--brand-card-border);
    padding: var(--space-20) 0;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(0, 229, 255, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

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

.cta-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: var(--space-4);
}

.cta-desc {
    font-size: 1rem;
    color: var(--neutral-400);
    max-width: 480px;
    margin: 0 auto var(--space-8);
}

/* ===== CONTATO ===== */
.contact {
    background: var(--brand-navy);
    padding: var(--space-24) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-12);
    align-items: start;
}

.contact-info { display: flex; flex-direction: column; gap: var(--space-6); }

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-5);
    background: var(--brand-card);
    border: 1px solid var(--brand-card-border);
    border-radius: var(--radius-lg);
    transition: border-color var(--ease-fast);
}

.contact-item:hover { border-color: rgba(0, 229, 255, 0.2); }

.contact-icon {
    width: 40px;
    height: 40px;
    background: var(--brand-glow);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--brand-cyan);
    font-size: 1rem;
    flex-shrink: 0;
}

.contact-item-title { font-size: 0.75rem; color: var(--neutral-500); font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: var(--space-1); }
.contact-item-value { font-size: 0.9375rem; color: var(--neutral-200); font-weight: 500; }

/* Formulário */
.contact-form {
    background: var(--brand-card);
    border: 1px solid var(--brand-card-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
}

.form-group { margin-bottom: var(--space-4); }

.form-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--neutral-300);
    margin-bottom: var(--space-2);
}

.form-control {
    width: 100%;
    background: var(--neutral-800);
    border: 1px solid var(--neutral-600);
    border-radius: var(--radius-md);
    padding: var(--space-3) var(--space-4);
    font-size: 0.9375rem;
    color: var(--white);
    font-family: var(--font-sans);
    transition: all var(--ease-fast);
    outline: none;
}

.form-control::placeholder { color: var(--neutral-500); }

.form-control:focus {
    border-color: var(--brand-cyan);
    background: var(--neutral-700);
    box-shadow: 0 0 0 3px var(--brand-glow);
}

textarea.form-control { resize: vertical; min-height: 120px; }

/* ===== FAQ ===== */
.faq { background: var(--brand-navy-light); padding: var(--space-24) 0; }

.faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: var(--space-3); }

.faq-item {
    background: var(--brand-card);
    border: 1px solid var(--brand-card-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--ease-fast);
}

.faq-item:hover { border-color: rgba(0, 229, 255, 0.2); }

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-6);
    cursor: pointer;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--white);
    gap: var(--space-4);
}

.faq-question i { color: var(--brand-cyan); transition: transform var(--ease-fast); flex-shrink: 0; }
.faq-item.open .faq-question i { transform: rotate(180deg); }

.faq-answer {
    display: none;
    padding: 0 var(--space-6) var(--space-5);
    font-size: 0.9375rem;
    color: var(--neutral-400);
    line-height: 1.75;
}

.faq-item.open .faq-answer { display: block; }

/* ===== EQUIPE ===== */
.faculty { background: var(--brand-navy); padding: var(--space-24) 0; }

.faculty-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-5);
}

.faculty-card {
    background: var(--brand-card);
    border: 1px solid var(--brand-card-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--ease-normal);
    text-align: center;
}

.faculty-card:hover {
    border-color: rgba(0, 229, 255, 0.25);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.faculty-photo {
    width: 100%;
    aspect-ratio: 1;
    background: var(--neutral-800);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--neutral-600);
    font-size: 3rem;
    overflow: hidden;
}

.faculty-photo img { width: 100%; height: 100%; object-fit: cover; }

.faculty-info { padding: var(--space-5); }

.faculty-name {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--space-1);
}

.faculty-position {
    font-size: 0.8125rem;
    color: var(--brand-cyan);
    font-weight: 500;
    margin-bottom: var(--space-1);
}

.faculty-dept {
    font-size: 0.75rem;
    color: var(--neutral-500);
}

.faculty-links {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5) var(--space-5);
}

.faculty-link {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--neutral-700);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--neutral-400);
    font-size: 0.75rem;
    transition: all var(--ease-fast);
}

.faculty-link:hover { background: var(--brand-glow); color: var(--brand-cyan); }

/* ===== FOOTER ===== */
.footer {
    background: var(--neutral-900);
    border-top: 1px solid var(--brand-card-border);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--space-10);
    margin-bottom: var(--space-12);
}

.footer-brand .logo-img { height: 36px; margin-bottom: var(--space-4); }

.footer-desc {
    font-size: 0.875rem;
    color: var(--neutral-400);
    line-height: 1.7;
    max-width: 280px;
    margin-bottom: var(--space-5);
}

.footer-social {
    display: flex;
    gap: var(--space-2);
}

.footer-social a {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-md);
    background: var(--neutral-700);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--neutral-400);
    font-size: 0.875rem;
    transition: all var(--ease-fast);
}

.footer-social a:hover { background: var(--brand-glow); color: var(--brand-cyan); }

.footer-heading {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--neutral-200);
    margin-bottom: var(--space-4);
}

.footer-links { list-style: none; display: flex; flex-direction: column; gap: var(--space-2); }

.footer-links a {
    font-size: 0.875rem;
    color: var(--neutral-400);
    transition: color var(--ease-fast);
}

.footer-links a:hover { color: var(--brand-cyan); }

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-8);
    border-top: 1px solid var(--brand-card-border);
    font-size: 0.8125rem;
    color: var(--neutral-500);
    flex-wrap: wrap;
    gap: var(--space-4);
}

/* ===== BADGE / TAG ===== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px var(--space-3);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-cyan { background: var(--brand-glow); color: var(--brand-cyan); border: 1px solid rgba(0,229,255,0.2); }
.badge-green { background: rgba(16,185,129,0.1); color: var(--color-success); border: 1px solid rgba(16,185,129,0.2); }

/* ===== DIVIDER ===== */
.divider {
    height: 1px;
    background: var(--brand-card-border);
    margin: var(--space-8) 0;
}

/* ===== CODE TAG ===== */
.code-tag {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    background: var(--neutral-800);
    color: var(--brand-cyan);
    padding: 2px var(--space-2);
    border-radius: var(--radius-sm);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .services-grid,
    .solutions-grid,
    .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
    .faculty-grid { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: 280px;
        background: var(--brand-card);
        border-left: 1px solid var(--brand-card-border);
        flex-direction: column;
        align-items: flex-start;
        padding: var(--space-20) var(--space-6) var(--space-8);
        gap: var(--space-1);
        overflow-y: auto;
        z-index: 999;
    }

    .nav-menu.active { display: flex; }

    .nav-link {
        width: 100%;
        padding: var(--space-3) var(--space-4);
    }

    .nav-toggle { display: flex; z-index: 1001; }

    .hero {
        min-height: auto !important;
        padding: 90px 0 var(--space-10) !important;
        flex-direction: column !important;
        align-items: stretch !important;
    }

    .hero-content {
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 1.25rem !important;
    }

    .hero-subtitle {
        max-width: 100% !important;
        font-size: 1rem !important;
    }

    .hero-stats {
        width: 100% !important;
        max-width: 100% !important;
        margin: 0 !important;
        border-radius: 0 !important;
        padding: 1.25rem !important;
    }

    .hero-title {
        font-size: clamp(1.875rem, 7vw, 2.5rem) !important;
    }

    .about-grid,
    .contact-grid { grid-template-columns: 1fr; }

    .services-grid,
    .solutions-grid,
    .testimonials-grid,
    .faculty-grid { grid-template-columns: 1fr; }

    .footer-grid { grid-template-columns: 1fr; }

    .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
    .hero-actions { flex-direction: column; }
    .btn { width: 100%; justify-content: center; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
}

/* ===== ANIMAÇÕES ===== */
@keyframes fade-up {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.animate-fade-up  { animation: fade-up  0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards; }
.animate-fade-in  { animation: fade-in  0.5s ease forwards; }

.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }

/* Intersection Observer controlled */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}