/* =============================================
   NEURI - STYLES
   Plataforma de Avaliação Neuropsicológica
   by Psicocompany | neuri.app.br
   ============================================= */

/* CSS Variables */
:root {
    /* Primary Colors - Blue Palette */
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-300: #93c5fd;
    --primary-400: #60a5fa;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-800: #1e40af;
    --primary-900: #1e3a8a;
    --primary-950: #172554;

    /* Neutral Colors */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    /* Accent Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    /* Typography */
    --font-display: 'Sora', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    color: var(--gray-800);
    background-color: var(--gray-50);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding-top: 70px;
}

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--gray-900);
}

h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p {
    color: var(--gray-600);
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

/* =============================================
   HEADER STYLES
   ============================================= */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-100);
    transition: all 0.3s ease;
}

.site-header.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.header-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0.875rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    text-decoration: none;
    color: var(--primary-700);
    transition: all 0.25s ease;
}

.header-logo:hover {
    color: var(--primary-600);
    transform: translateY(-1px);
}

.logo-icon {
    width: 36px;
    height: 36px;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-600), var(--primary-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
    color: white;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 0.75rem;
    box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.35);
    transition: all 0.25s ease;
}

.header-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(37, 99, 235, 0.45);
}

.header-cta:active {
    transform: translateY(0);
}

.header-cta svg {
    flex-shrink: 0;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.875rem 1.75rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-xl);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(37, 99, 235, 0.45);
}

.btn-secondary {
    background: white;
    color: var(--gray-700);
    border: 1px solid var(--gray-200);
}

.btn-secondary:hover {
    background: var(--gray-50);
    border-color: var(--gray-300);
}

.btn-white {
    background: white;
    color: var(--primary-700);
    box-shadow: var(--shadow-lg);
}

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

.btn-outline-white {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
}

/* Section Tag */
.section-tag {
    display: inline-block;
    padding: 0.375rem 1rem;
    background: var(--primary-50);
    color: var(--primary-600);
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-md);
}

/* Section Header */
.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto var(--space-3xl);
}

.section-header h2 {
    margin-bottom: var(--space-md);
}

.section-header p {
    font-size: 1.125rem;
}

/* =============================================
   HERO SECTION - CENTRALIZADO
   ============================================= */
.hero {
    position: relative;
    min-height: calc(100vh - 70px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4xl) 0;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-50) 0%, white 50%, var(--primary-100) 100%);
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.brain-illustration {
    position: absolute;
    right: -5%;
    top: 50%;
    transform: translateY(-50%);
    width: 50%;
    max-width: 600px;
    opacity: 0.4;
}

.brain-svg {
    width: 100%;
    height: auto;
}

.brain-circle {
    fill: none;
    stroke: var(--primary-300);
    stroke-width: 1;
    opacity: 0.5;
}

.brain-circle.c1 {
    animation: pulse 4s ease-in-out infinite;
}

.brain-circle.c2 {
    stroke: var(--primary-400);
    animation: pulse 4s ease-in-out infinite 0.5s;
}

.brain-circle.c3 {
    stroke: var(--primary-500);
    animation: pulse 4s ease-in-out infinite 1s;
}

.brain-circle.c4 {
    stroke: var(--primary-400);
    animation: pulse 4s ease-in-out infinite 1.5s;
}

.brain-circle.c5 {
    stroke: var(--primary-300);
    animation: pulse 4s ease-in-out infinite 2s;
}

.neural-path {
    fill: none;
    stroke: var(--primary-400);
    stroke-width: 2;
    stroke-dasharray: 200;
    stroke-dashoffset: 200;
    animation: drawPath 3s ease forwards infinite;
}

.node {
    fill: var(--primary-500);
    animation: nodeGlow 2s ease-in-out infinite;
}

.node.center {
    fill: var(--primary-600);
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.05); opacity: 0.8; }
}

@keyframes drawPath {
    0% { stroke-dashoffset: 200; }
    50% { stroke-dashoffset: 0; }
    100% { stroke-dashoffset: -200; }
}

@keyframes nodeGlow {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

.floating-shapes {
    position: absolute;
    inset: 0;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-200), var(--primary-100));
    opacity: 0.4;
}

.shape-1 {
    width: 300px;
    height: 300px;
    top: 10%;
    left: 5%;
    animation: float 8s ease-in-out infinite;
}

.shape-2 {
    width: 200px;
    height: 200px;
    bottom: 20%;
    left: 15%;
    animation: float 6s ease-in-out infinite 1s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    top: 30%;
    right: 10%;
    animation: float 7s ease-in-out infinite 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 720px;
    padding: 0 var(--space-lg);
    text-align: center;
    margin: 0 auto;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 0.5rem 1rem;
    background: white;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary-700);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--space-xl);
}

.badge svg {
    color: var(--success);
}

.hero h1 {
    margin-bottom: var(--space-lg);
}

.hero h1 .highlight {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
    flex-wrap: wrap;
    justify-content: center;
}

/* Animations */
.animate-fade-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

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

/* =============================================
   ABOUT SECTION
   ============================================= */
.about {
    padding: var(--space-4xl) 0;
    background: white;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
}

.about-content h2 {
    margin-bottom: var(--space-lg);
}

.about-content .lead {
    font-size: 1.125rem;
    color: var(--gray-700);
    margin-bottom: var(--space-md);
    line-height: 1.7;
}

.about-content p {
    margin-bottom: var(--space-xl);
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.feature {
    display: flex;
    gap: var(--space-md);
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-50);
    border-radius: var(--radius-lg);
    color: var(--primary-600);
}

.feature-text h4 {
    margin-bottom: var(--space-xs);
}

.feature-text p {
    font-size: 0.9375rem;
    margin: 0;
}

/* Visual Card */
.about-visual {
    position: relative;
}

.visual-card {
    position: relative;
    background: linear-gradient(135deg, var(--primary-50) 0%, white 100%);
    border-radius: var(--radius-2xl);
    padding: var(--space-3xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.card-decoration {
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, var(--primary-200), var(--primary-100));
    border-radius: 50%;
    opacity: 0.5;
}

.cognitive-areas {
    position: relative;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: var(--space-lg);
    min-height: 350px;
}

.area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    z-index: 1;
}

.area:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.area-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-50);
    border-radius: var(--radius-lg);
    color: var(--primary-600);
}

.area span {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--gray-700);
    text-align: center;
}

.area-1 { grid-area: 1 / 1 / 2 / 2; }
.area-2 { grid-area: 1 / 3 / 2 / 4; }
.area-3 { grid-area: 2 / 1 / 3 / 2; }
.area-4 { grid-area: 2 / 3 / 3 / 4; }
.area-5 { grid-area: 3 / 2 / 4 / 3; }

.area-center {
    grid-area: 2 / 2 / 3 / 3;
    background: linear-gradient(135deg, var(--primary-600), var(--primary-500));
}

.area-center .area-icon {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.area-center span {
    color: white;
}

.connection-lines {
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0.3;
}

.connection-lines svg {
    width: 100%;
    height: 100%;
}

.conn-line {
    stroke: var(--primary-400);
    stroke-width: 2;
    stroke-dasharray: 8, 4;
    animation: dash 20s linear infinite;
}

@keyframes dash {
    to { stroke-dashoffset: -100; }
}

/* =============================================
   TARGET AUDIENCE SECTION
   ============================================= */
.target-audience {
    padding: var(--space-4xl) 0;
    background: var(--gray-50);
}

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

.audience-card {
    position: relative;
    background: white;
    border-radius: var(--radius-2xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    overflow: hidden;
}

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

.card-icon {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-50);
    border-radius: var(--radius-xl);
    color: var(--primary-600);
    margin-bottom: var(--space-lg);
}

.audience-card h3 {
    margin-bottom: var(--space-md);
    font-size: 1.25rem;
}

.audience-card ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.audience-card li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9375rem;
    color: var(--gray-600);
}

.audience-card li::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--primary-400);
    border-radius: 50%;
    flex-shrink: 0;
}

.card-decoration-line {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-400), var(--primary-600));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.audience-card:hover .card-decoration-line {
    transform: scaleX(1);
}

/* =============================================
   HOW IT WORKS SECTION
   ============================================= */
.how-it-works {
    padding: var(--space-4xl) 0;
    background: white;
}

.steps-container {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
    flex-wrap: wrap;
}

.step {
    flex: 1;
    max-width: 280px;
    text-align: center;
    padding: 0 var(--space-md);
}

.step-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-200), var(--primary-100));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-md);
}

.step-content {
    background: var(--gray-50);
    border-radius: var(--radius-2xl);
    padding: var(--space-xl);
    transition: all var(--transition-base);
}

.step:hover .step-content {
    background: var(--primary-50);
    transform: translateY(-4px);
}

.step-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: var(--radius-xl);
    color: var(--primary-600);
    margin: 0 auto var(--space-md);
    box-shadow: var(--shadow-md);
}

.step-content h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
}

.step-content p {
    font-size: 0.9375rem;
    margin: 0;
}

.step-connector {
    width: 60px;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.step-connector svg {
    width: 100%;
    height: 20px;
}

.step-connector path {
    stroke: var(--primary-300);
    stroke-width: 2;
    fill: none;
}

/* =============================================
   BENEFITS SECTION
   ============================================= */
.benefits {
    padding: var(--space-4xl) 0;
    background: var(--gray-50);
}

.benefits-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: start;
}

.benefits-content h2 {
    margin-bottom: var(--space-xl);
}

.benefits-list {
    display: grid;
    gap: var(--space-lg);
}

.benefit-item {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-md);
    background: white;
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.benefit-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.benefit-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-50);
    border-radius: var(--radius-lg);
    color: var(--primary-600);
}

.benefit-text h4 {
    margin-bottom: var(--space-xs);
}

.benefit-text p {
    font-size: 0.9375rem;
    margin: 0;
}

/* Testimonial */
.benefits-visual {
    position: sticky;
    top: var(--space-xl);
}

.testimonial-card {
    background: white;
    border-radius: var(--radius-2xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-xl);
    margin-bottom: var(--space-xl);
}

.quote-icon {
    color: var(--primary-200);
    margin-bottom: var(--space-md);
}

.testimonial-text {
    font-size: 1.125rem;
    font-style: italic;
    color: var(--gray-700);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.author-avatar {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-400), var(--primary-600));
    border-radius: 50%;
    color: white;
    font-weight: 600;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-info strong {
    color: var(--gray-800);
}

.author-info span {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.testimonial-rating {
    display: flex;
    gap: 2px;
    color: var(--warning);
}

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

.badge-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: white;
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.badge-item svg {
    color: var(--primary-600);
}

.badge-item span {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--gray-700);
}

/* =============================================
   CTA SECTION
   ============================================= */
.cta-section {
    padding: var(--space-4xl) 0;
    background: white;
}

.cta-card {
    position: relative;
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-800) 100%);
    border-radius: var(--radius-2xl);
    padding: var(--space-4xl);
    overflow: hidden;
}

.cta-bg-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(255,255,255,0.1) 0%, transparent 50%);
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 600px;
}

.cta-content h2 {
    color: white;
    margin-bottom: var(--space-md);
}

.cta-content p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.125rem;
    margin-bottom: var(--space-xl);
}

.cta-buttons {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.cta-decoration {
    position: absolute;
    right: var(--space-3xl);
    top: 50%;
    transform: translateY(-50%);
    width: 300px;
    opacity: 0.2;
}

.cta-brain {
    width: 100%;
}

.cta-circle {
    fill: none;
    stroke: white;
    stroke-width: 2;
    animation: pulse 3s ease-in-out infinite;
}

.cta-circle-2 {
    fill: none;
    stroke: white;
    stroke-width: 1.5;
    animation: pulse 3s ease-in-out infinite 0.5s;
}

/* =============================================
   FAQ SECTION
   ============================================= */
.faq-section {
    padding: var(--space-4xl) 0;
    background: var(--gray-50);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    max-width: 1000px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
    transition: all var(--transition-base);
}

.faq-question:hover {
    color: var(--primary-600);
}

.faq-question svg {
    flex-shrink: 0;
    color: var(--gray-400);
    transition: transform var(--transition-base);
}

.faq-item.active .faq-question svg {
    transform: rotate(180deg);
    color: var(--primary-600);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

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

.faq-answer p {
    padding: 0 var(--space-lg) var(--space-lg);
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* =============================================
   RESPONSIVE DESIGN
   ============================================= */
@media (max-width: 1200px) {
    .audience-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .steps-container {
        flex-wrap: wrap;
        gap: var(--space-lg);
    }
    
    .step-connector {
        display: none;
    }
    
    .step {
        flex: 0 0 calc(50% - var(--space-md));
        max-width: none;
    }
}

@media (max-width: 992px) {
    .about-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
        gap: var(--space-3xl);
    }
    
    .about-visual {
        order: -1;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-decoration {
        display: none;
    }
    
    .brain-illustration {
        opacity: 0.2;
        width: 80%;
        right: -20%;
    }
}

@media (max-width: 768px) {
    body {
        padding-top: 60px;
    }
    
    .hero {
        padding: var(--space-3xl) 0;
        min-height: auto;
    }
    
    .audience-cards {
        grid-template-columns: 1fr;
    }
    
    .step {
        flex: 0 0 100%;
    }
    
    .trust-badges {
        grid-template-columns: 1fr;
    }
    
    .cta-card {
        padding: var(--space-xl);
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .cta-buttons .btn {
        width: 100%;
    }
    
    .header-container {
        padding: 0.75rem 1rem;
    }
    
    .logo-icon {
        width: 32px;
        height: 32px;
    }
    
    .logo-text {
        font-size: 1.25rem;
    }
    
    .header-cta {
        padding: 0.5rem 1rem;
        font-size: 0.8125rem;
    }
    
    .header-cta span {
        display: none;
    }
    
    .header-cta svg {
        width: 20px;
        height: 20px;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-cta .btn {
        width: 100%;
    }
    
    .cognitive-areas {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: auto;
    }
    
    .area-1 { grid-area: auto; }
    .area-2 { grid-area: auto; }
    .area-3 { grid-area: auto; }
    .area-4 { grid-area: auto; }
    .area-5 { grid-area: auto; }
    .area-center { grid-area: auto; grid-column: span 2; }
}