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

/* ===================== */
/* SKIP LINK (a11y)      */
/* ===================== */
.skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: var(--white);
    padding: 12px 24px;
    border-radius: 0 0 10px 10px;
    font-weight: 600;
    z-index: 10001;
    transition: top 0.2s ease;
}
.skip-link:focus {
    top: 0;
    outline: 3px solid var(--warning);
    outline-offset: 2px;
}

/* ===================== */
/* SCROLL PROGRESS       */
/* ===================== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    width: 0%;
    background: var(--gradient);
    z-index: 10000;
    pointer-events: none;
    transition: width 0.05s linear;
}

/* ===================== */
/* HEADER FIXO           */
/* ===================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
    transform: translateY(-100%);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.site-header.visible {
    transform: translateY(0);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
}
.header-logo {
    font-weight: 800;
    font-size: 1.15rem;
    color: var(--dark);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}
.header-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}
.header-nav a {
    color: var(--gray);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}
.header-nav a:hover,
.header-nav a:focus {
    color: var(--primary);
}
.btn-small {
    padding: 10px 20px;
    font-size: 0.95rem;
}
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2.5px;
    background: var(--dark);
    border-radius: 2px;
    transition: transform 0.25s ease, opacity 0.25s ease;
}
.mobile-menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
}
.mobile-menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}
.mobile-menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7.5px) rotate(-45deg);
}

/* ===================== */
/* FAB WHATSAPP          */
/* ===================== */
.fab-whatsapp {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 60px;
    height: 60px;
    background: #25d366;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.45);
    z-index: 9998;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.fab-whatsapp svg {
    width: 30px;
    height: 30px;
}
.fab-whatsapp:hover,
.fab-whatsapp:focus {
    transform: scale(1.08);
    box-shadow: 0 8px 32px rgba(37, 211, 102, 0.55);
}

/* ===================== */
/* BACK TO TOP           */
/* ===================== */
.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 32px;
    width: 46px;
    height: 46px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.35);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease;
    z-index: 9997;
}
.back-to-top svg {
    width: 22px;
    height: 22px;
}
.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.back-to-top:hover,
.back-to-top:focus {
    background: var(--primary-dark);
}

/* ===================== */
/* FOCUS STATES (a11y)   */
/* ===================== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 3px solid var(--warning);
    outline-offset: 2px;
}

/* ===================== */
/* PREFERS REDUCED MOTION */
/* ===================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    .floating-card {
        animation: none;
    }
}

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #0ea5e9;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --gray: #64748b;
    --gray-light: #cbd5e1;
    --white: #ffffff;
    --success: #10b981;
    --warning: #f59e0b;
    --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #6366f1 0%, #0ea5e9 100%);
}

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

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

/* Hero Section */
.hero {
    background: var(--gradient);
    color: var(--white);
    padding: 140px 20px 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.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"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)" /></svg>');
    opacity: 0.3;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 30px;
    backdrop-filter: blur(10px);
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 30px;
    position: relative;
    z-index: 1;
}

.hero-title .highlight {
    background: linear-gradient(to right, #fbbf24, #f59e0b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.3rem;
    max-width: 800px;
    margin: 0 auto 40px;
    opacity: 0.95;
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

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

.btn {
    display: inline-block;
    padding: 18px 40px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--white);
    color: var(--primary);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.14);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.35);
    backdrop-filter: blur(10px);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.22);
}

.hero-buttons {
    display: flex;
    gap: 14px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

.btn-large {
    padding: 22px 50px;
    font-size: 1.2rem;
}

.hero-note {
    margin-top: 20px;
    font-size: 0.95rem;
    opacity: 0.85;
}

.hero-visual {
    margin-top: 60px;
    position: relative;
    height: 180px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.floating-card {
    position: relative;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 16px 24px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 0.95rem;
    animation: float 3s ease-in-out infinite;
}

.floating-card .icon {
    font-size: 1.5rem;
}

.card-1 {
    animation-delay: 0s;
}

.card-2 {
    animation-delay: 0.5s;
}

.card-3 {
    animation-delay: 1s;
}

.card-4 {
    animation-delay: 1.5s;
}

.card-5 {
    animation-delay: 2s;
}

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

/* Problem Section */
.problem {
    padding: 80px 20px;
    background: var(--dark);
    color: var(--white);
}

.problem-intro {
    text-align: center;
    margin-bottom: 60px;
}

.problem-intro h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    line-height: 1.3;
}

.problem-highlight {
    font-size: 2rem;
    color: #f59e0b;
    font-weight: 700;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
}

.problem-card {
    background: var(--dark-light);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.problem-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.problem-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.problem-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--white);
}

.problem-card p {
    color: var(--gray-light);
    line-height: 1.6;
}

/* Promise Section */
.promise {
    padding: 80px 20px;
    background: var(--gradient-2);
    color: var(--white);
    text-align: center;
}

.promise-content h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
}

.promise-text {
    font-size: 1.6rem;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.7;
}

.promise-lead {
    display: block;
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.85;
    margin-bottom: 16px;
}

/* Benefits Section */
.benefits {
    padding: 80px 20px;
    background: #f8fafc;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--dark);
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--gray);
    margin-bottom: 50px;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
}

.benefit-card {
    background: var(--white);
    padding: 35px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.benefit-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.benefit-card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--dark);
}

.benefit-card p {
    color: var(--gray);
    line-height: 1.6;
}

/* Method Section */
.method {
    padding: 80px 20px;
    background: var(--white);
}

.method-timeline {
    max-width: 900px;
    margin: 0 auto;
}

.method-step {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
    padding: 30px;
    background: #f8fafc;
    border-radius: 15px;
    border-left: 5px solid var(--primary);
    transition: all 0.3s ease;
}

.method-step:hover {
    background: #f1f5f9;
    transform: translateX(10px);
}

.step-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: var(--gradient);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 700;
}

.step-content h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--dark);
}

.step-content p {
    color: var(--gray);
    line-height: 1.6;
    margin-bottom: 15px;
}

.step-tag {
    display: inline-block;
    background: var(--primary);
    color: var(--white);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* Modules Section */
.modules {
    padding: 80px 20px;
    background: #f8fafc;
}

.modules-accordion {
    max-width: 900px;
    margin: 0 auto;
}

.module-item {
    background: var(--white);
    margin-bottom: 20px;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
}

.module-header {
    padding: 25px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.module-header:hover {
    background: #f8fafc;
}

.module-title {
    display: flex;
    align-items: center;
    gap: 20px;
}

.module-number {
    background: var(--gradient);
    color: var(--white);
    padding: 8px 16px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.9rem;
}

.module-title h3 {
    font-size: 1.3rem;
    color: var(--dark);
}

.module-arrow {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
    color: var(--primary);
}

.module-item.active .module-arrow {
    transform: rotate(180deg);
}

.module-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.module-item.active .module-content {
    max-height: 500px;
    padding: 0 30px 30px;
}

.module-topics {
    list-style: none;
    margin-bottom: 20px;
}

.module-topics li {
    padding: 10px 0 10px 30px;
    position: relative;
    color: var(--gray);
}

.module-topics li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

.module-deliverable {
    background: #f0f9ff;
    padding: 20px;
    border-radius: 10px;
    border-left: 4px solid var(--secondary);
    line-height: 1.8;
    color: var(--dark);
}

/* For Who Section */
.for-who {
    padding: 80px 20px;
    background: var(--white);
}

.for-who-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    max-width: 1000px;
    margin: 0 auto;
}

.for-who-card {
    background: #f8fafc;
    padding: 30px;
    border-radius: 12px;
    display: flex;
    align-items: start;
    gap: 20px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.for-who-card:hover {
    border-color: var(--success);
    background: #f0fdf4;
}

.check-icon {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    background: var(--success);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.for-who-card p {
    color: var(--dark);
    line-height: 1.6;
}

/* Authority Section */
.authority {
    padding: 80px 20px;
    background: var(--dark);
    color: var(--white);
}

.authority-content {
    max-width: 900px;
    margin: 0 auto;
}

.authority-text {
    margin-bottom: 50px;
}

.authority-text p {
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: 20px;
    opacity: 0.95;
}

.authority-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat {
    padding: 30px;
    background: var(--dark-light);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.stat-label {
    color: var(--gray-light);
    font-size: 1rem;
}

/* How It Works Section */
.how-it-works {
    padding: 80px 20px;
    background: #f8fafc;
}

/* Application / Selection */
.application {
    padding: 80px 20px;
    background: var(--white);
}

.application-box {
    max-width: 600px;
    margin: 0 auto;
}

.application-card {
    background: var(--white);
    border-radius: 20px;
    padding: 40px 36px;
    box-shadow: 0 8px 40px rgba(15, 23, 42, 0.08);
    border: 1px solid rgba(15, 23, 42, 0.06);
}

/* Stepper horizontal */
.form-stepper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 32px;
}

.stepper-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.stepper-num {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #e2e8f0;
    color: var(--gray);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.95rem;
    transition: all 0.25s ease;
}

.stepper-step.active .stepper-num,
.stepper-step.completed .stepper-num {
    background: var(--primary);
    color: var(--white);
}

.stepper-step.completed .stepper-num {
    background: var(--success);
}

.stepper-label {
    font-size: 0.75rem;
    color: var(--gray);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.stepper-step.active .stepper-label {
    color: var(--primary);
}

.stepper-line {
    flex: 1;
    height: 3px;
    background: #e2e8f0;
    margin: 0 8px;
    margin-bottom: 22px;
    max-width: 50px;
    border-radius: 2px;
    transition: background 0.25s ease;
}

.stepper-line.completed {
    background: var(--success);
}

.form-field {
    margin-bottom: 20px;
}

.form-field label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--dark);
}

/* Phone input group */
.phone-input-group {
    display: flex;
    gap: 8px;
}

.phone-ddi {
    width: 60px;
    text-align: center;
    flex-shrink: 0;
}

.phone-ddd {
    width: 60px;
    text-align: center;
    flex-shrink: 0;
}

.phone-number {
    flex: 1;
}

.form-field input,
.form-field textarea,
.form-field select {
    width: 100%;
    border-radius: 10px;
    padding: 14px 16px;
    border: 1px solid #e2e8f0;
    background: #f8fafc;
    color: var(--dark);
    outline: none;
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-field select option {
    color: var(--dark);
}

.form-field input::placeholder,
.form-field textarea::placeholder {
    color: var(--gray);
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.helper {
    font-size: 0.85rem;
    color: var(--gray);
    margin-top: 6px;
}

.form-options {
    display: grid;
    gap: 10px;
}

.option {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    padding: 12px 14px;
    border-radius: 10px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    cursor: pointer;
    transition: border-color 0.2s ease, background 0.2s ease;
    color: var(--dark);
    font-size: 0.95rem;
}

.option:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.04);
}

.option input {
    margin-top: 2px;
    accent-color: var(--primary);
}

.form-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    align-items: center;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid #e2e8f0;
}

.btn-ghost {
    background: transparent;
    color: var(--gray);
    border: 1px solid #e2e8f0;
    padding: 14px 24px;
    border-radius: 10px;
}

.btn-ghost:hover {
    background: #f8fafc;
    color: var(--dark);
}

.btn-ghost:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.hp {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    opacity: 0;
}

.form-success {
    text-align: center;
    padding: 20px 0;
}

.form-success h4 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--dark);
}

.form-success p {
    color: var(--gray);
    margin-bottom: 16px;
}

.cta-note {
    text-align: center;
    margin-top: 16px;
    font-size: 0.85rem;
    color: var(--gray);
}

.application-cta .cta-note {
    margin-top: 14px;
    opacity: 0.9;
}

.how-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.how-card {
    background: var(--white);
    padding: 35px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.how-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.15);
}

.how-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.how-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark);
}

.how-card p {
    color: var(--gray);
    line-height: 1.6;
}

/* CTA Final Section */
.cta-final {
    padding: 100px 20px;
    background: var(--gradient);
    color: var(--white);
}

.cta-box {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.cta-box h2 {
    font-size: 2.8rem;
    margin-bottom: 20px;
    line-height: 1.3;
}

.cta-box p {
    font-size: 1.3rem;
    margin-bottom: 20px;
    opacity: 0.95;
}

.cta-urgency {
    background: rgba(245, 158, 11, 0.2);
    padding: 15px 25px;
    border-radius: 10px;
    display: inline-block;
    margin: 20px 0 40px;
    font-weight: 600;
}

.cta-note {
    margin-top: 20px;
    font-size: 0.95rem;
    opacity: 0.85;
}

/* FAQ Section */
.faq {
    padding: 80px 20px;
    background: var(--white);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: #f8fafc;
    margin-bottom: 15px;
    border-radius: 12px;
    overflow: hidden;
}

.faq-question {
    padding: 25px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: #f1f5f9;
}

.faq-question h3 {
    font-size: 1.1rem;
    color: var(--dark);
    font-weight: 600;
}

.faq-arrow {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
    color: var(--primary);
}

.faq-item.active .faq-arrow {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 30px 25px;
}

.faq-answer p {
    color: var(--gray);
    line-height: 1.7;
}

/* Footer */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 50px 20px 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 30px;
}

.footer-logo h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.footer-logo p,
.footer-contact p {
    color: var(--gray-light);
    line-height: 1.7;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--gray-light);
}

/* Responsive */
@media (max-width: 768px) {
    /* Header Mobile */
    .header-nav {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--white);
        flex-direction: column;
        justify-content: flex-start;
        padding: 40px 20px;
        gap: 24px;
        transform: translateX(100%);
        transition: transform 0.3s ease;
    }
    .header-nav.open {
        transform: translateX(0);
    }
    .header-nav a {
        font-size: 1.2rem;
    }
    .mobile-menu-toggle {
        display: flex;
    }

    /* FAB e Back to Top */
    .fab-whatsapp {
        bottom: 20px;
        right: 20px;
        width: 54px;
        height: 54px;
    }
    .back-to-top {
        bottom: 86px;
        right: 24px;
        width: 42px;
        height: 42px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .problem-intro h2,
    .promise-content h2,
    .cta-box h2 {
        font-size: 1.8rem;
    }

    .floating-card {
        position: relative;
        left: 0 !important;
        right: 0 !important;
        transform: none !important;
        margin: 10px auto;
        display: inline-flex;
    }

    .hero-visual {
        height: auto;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .method-step {
        flex-direction: column;
    }

    .benefits-grid,
    .problem-grid,
    .for-who-grid,
    .how-grid {
        grid-template-columns: 1fr;
    }

    .application-box {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 480px) {
    .hero {
        padding: 100px 15px 60px;
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .btn {
        padding: 15px 30px;
        font-size: 1rem;
    }

    .btn-large {
        padding: 18px 35px;
        font-size: 1.1rem;
    }
}