:root {
    --primary: #0c2d4c;
    --accent: #c7a159;
    --white: #ffffff;
    --bg-light: #f4f7f9;
    --text-dark: #1a1a1a;
    --text-muted: #4e5d6c;
    --danger: #d9534f;
    --success: #28a745;
    --nav-height: 80px;
    --radius: 12px;
    --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);

    --dark: #111827;
    --text-main: #374151;
    --light: #F9FAFB;
    --border: #E5E7EB;
    --radius-md: 16px;
    --radius-lg: 32px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-dark);
    background: var(--white);
    line-height: 1.8;
    overflow-x: hidden;
    font-size: 18px;
}

p {
    font-size: 1.125rem;
}

h1,
h2,
h3,
h4 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    line-height: 1.1;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Buttons from battery */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    gap: 10px;
    transition: var(--transition);
    white-space: nowrap;
    border: 2px solid var(--accent);
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    border: 2px solid var(--accent);
}

.btn-primary:hover {
    background: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(12, 45, 76, 0.2);
    border-color: var(--accent);
}

/* Header (Battery Style) */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 24px 0;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    background: transparent;
}

.header.scrolled {
    padding: 12px 0;
    background: white;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(10px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo img {
    height: 48px;
    filter: brightness(0) invert(1);
    transition: var(--transition);
}

.header.scrolled .logo img {
    filter: none;
}

.nav {
    display: none;
    gap: 28px;
    align-items: center;
}

@media (min-width: 1024px) {
    .nav {
        display: flex;
    }
}

@media (min-width: 1200px) {
    .nav {
        gap: 40px;
    }
}

.nav-link {
    font-size: 15px;
    font-weight: 600;
    color: white;
    transition: var(--transition);
    white-space: nowrap;
}

@media (min-width: 1200px) {
    .nav-link {
        font-size: 16px;
    }
}

.header.scrolled .nav-link {
    color: var(--primary);
}

.nav-link:hover {
    color: var(--accent) !important;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

@media (min-width: 1024px) {
    .mobile-menu-toggle {
        display: none;
    }
}

.mobile-menu-toggle span {
    display: block;
    width: 28px;
    height: 2px;
    background: white;
    transition: var(--transition);
}

.header.scrolled .mobile-menu-toggle span {
    background: var(--primary);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Responsive Nav */
@media (max-width: 1023px) {
    .nav,
    .header-actions {
        display: none !important;
    }
    
    .nav.active {
        display: flex !important;
        flex-direction: column;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: var(--primary);
        padding-top: 100px;
        z-index: 1000;
        gap: 24px;
    }
    
    .nav.active .nav-link {
        font-size: 20px;
        color: white !important;
    }
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--accent);
    color: white;
    padding: 8px;
    z-index: 10001;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 0;
}

/* Hero Slider Styles (Battery Style) */
.hero {
    position: relative;
    padding: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--dark);
}

.hero-slider {
    position: relative;
    width: 100%;
    height: 100vh;
}

.hero-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: var(--transition);
}

.hero-nav-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
}

.hero-nav-prev {
    left: 40px;
}

.hero-nav-next {
    right: 40px;
}

@media (max-width: 768px) {
    .hero-nav-btn {
        display: none;
    }
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 1s ease;
    z-index: 1;
}

.hero-slide.active {
    opacity: 1;
    visibility: visible;
    z-index: 2;
}

.hero-slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Película de controle solar e barreira térmica escura para máximo contraste de leitura */
    background: linear-gradient(90deg, rgba(12, 45, 76, 0.94) 0%, rgba(12, 45, 76, 0.75) 50%, rgba(12, 45, 76, 0.4) 100%);
    z-index: 2;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

.hero-inner {
    position: relative;
    z-index: 3;
    display: flex;
    align-items: center;
    height: 100%;
    width: 100%;
}

.hero-content {
    max-width: 650px;
    color: var(--white);
}

.hero-content h1 {
    color: var(--white);
    font-size: clamp(40px, 8vw, 72px);
    margin-bottom: 24px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    transform: translateY(30px);
    opacity: 0;
    transition: all 0.8s ease 0.3s;
}

.hero-content p {
    color: rgba(255, 255, 255, 0.8);
    font-size: clamp(18px, 2.5vw, 22px);
    margin-bottom: 40px;
    transform: translateY(30px);
    opacity: 0;
    transition: all 0.8s ease 0.4s;
}

.hero-btns {
    transform: translateY(30px);
    opacity: 0;
    transition: all 0.8s ease 0.5s;
}

.hero-slide.active h1,
.hero-slide.active p,
.hero-slide.active .hero-btns {
    transform: translateY(0);
    opacity: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 8px 16px;
    border-radius: 99px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
}

.hero-badge i {
    color: var(--accent);
}

.hero-dots {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.hero-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: var(--transition);
}

.hero-dot.active {
    background: var(--accent);
    width: 32px;
    border-radius: 6px;
}

/* Components (Original Index styles preserved or updated) */
.section-tag {
    color: var(--accent);
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2.5px;
    display: inline-block;
    margin-bottom: 20px;
    font-size: 15px;
}

.image-frame {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.15);
    position: relative;
}

.image-frame img {
    width: 100%;
    display: block;
    filter: brightness(0.95);
    transition: transform 0.6s var(--transition);
}

.image-frame:hover img {
    transform: scale(1.05);
}

.pills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 24px;
}

.pill {
    background: rgba(12, 45, 76, 0.05);
    color: var(--primary);
    padding: 8px 20px;
    border-radius: 99px;
    font-size: 14px;
    font-weight: 600;
}

.benefit-card {
    background: var(--white);
    padding: 32px;
    border-radius: var(--radius);
    border: 1px solid rgba(12, 45, 76, 0.05);
    transition: var(--transition);
}

.benefit-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

.benefit-card h3 {
    color: var(--primary);
    margin-bottom: 12px;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 24px;
}

.specs-table td {
    padding: 12px 0;
    border-bottom: 1px solid rgba(12, 45, 76, 0.1);
}

.specs-table td:first-child {
    font-weight: 700;
    color: var(--primary);
    width: 40%;
}

.specs-table td:last-child {
    color: var(--text-muted);
}

.alert-box {
    padding: 24px;
    border-radius: var(--radius);
    background: rgba(217, 83, 79, 0.05);
    border-left: 4px solid var(--danger);
    margin-top: 24px;
}

.alert-box h4 {
    color: var(--danger);
    margin-bottom: 8px;
}

/* Contact Session */
.contact-section {
    background: var(--bg-light);
    padding: 100px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 60px;
    align-items: start;
}

@media (min-width: 1024px) {
    .contact-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--primary);
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px;
    border: 2px solid #eee;
    border-radius: 8px;
    font-family: inherit;
    font-size: 16px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    outline: none;
}

.submit-btn {
    width: 100%;
    background: var(--success);
    color: var(--white);
    padding: 18px;
    border: none;
    border-radius: 8px;
    font-weight: 800;
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    margin-top: 10px;
}

.submit-btn:hover {
    background: #218838;
    transform: translateY(-2px);
}

/* Sessions General */
section {
    padding: 100px 0;
    overflow: hidden;
}

.session-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 60px;
    align-items: center;
}

@media (min-width: 1024px) {
    .session-grid {
        grid-template-columns: 1fr 1fr;
    }

    .session-grid.reverse {
        direction: rtl;
    }

    .session-grid.reverse>* {
        direction: ltr;
    }
}

.session-grid .content h2 {
    font-size: clamp(32px, 5vw, 48px);
    margin-bottom: 24px;
}

.session-grid .content h3 {
    font-size: clamp(28px, 4vw, 38px);
    margin-bottom: 24px;
    color: var(--primary);
}

.session-grid .content p {
    font-size: clamp(18px, 2vw, 22px);
    line-height: 1.8;
    margin-bottom: 32px;
    color: var(--text-muted);
    font-weight: 400;
}

/* Mobile Bottom Nav (Reference Structure) */
.mobile-nav-container {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: white;
    box-shadow: 0 -8px 25px rgba(0, 0, 0, 0.08);
    z-index: 9999;
    padding: 6px 0;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.mobile-nav-items {
    display: flex;
    justify-content: space-around;
    align-items: center;
    max-width: 600px;
    margin: 0 auto;
    padding: 0 10px;
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    color: #8a99a8;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    flex: 1;
    transition: var(--transition);
}

.mobile-nav-item i {
    font-size: 18px;
}

.mobile-nav-item:hover,
.mobile-nav-item.active {
    color: var(--accent);
}

.mobile-nav-central {
    position: relative;
    top: -18px;
    background: white;
    padding: 6px;
    border-radius: 50%;
    box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.06);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.mobile-nav-central-btn {
    width: 58px;
    height: 58px;
    background: var(--primary);
    color: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 20px rgba(12, 45, 76, 0.35);
    transition: var(--transition);
}

.mobile-nav-central-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(12, 45, 76, 0.45);
}

.mobile-nav-central-btn i {
    font-size: 22px;
    color: var(--accent);
}

.mobile-nav-central span {
    position: absolute;
    bottom: -22px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 10px;
    color: #4b5563;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
/* Accessibility Logic */
body.a11y-active {
    font-size: 110% !important;
    filter: contrast(120%) saturate(120%);
}
body.a11y-active p, body.a11y-active span, body.a11y-active li, body.a11y-active a {
    letter-spacing: 0.5px;
    line-height: 1.6;
}

/* Floating Actions */
.floating-actions {
    display: none;
    position: fixed;
    bottom: 85px;
    left: 0;
    width: 100%;
    padding: 0 20px;
    z-index: 9998;
    pointer-events: none;
}

.floating-actions>* {
    pointer-events: auto;
}

.accessibility-fab {
    width: 45px;
    height: 45px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--accent);
    float: left;
}

.whatsapp-fab {
    background: var(--accent);
    color: var(--white);
    padding: 10px 20px;
    border-radius: 30px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 14px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    float: right;
}

@media (max-width: 1024px) {
    .mobile-nav-container,
    .floating-actions {
        display: block;
    }

    body {
        padding-bottom: 80px;
    }
}

/* Accessibility Panel */
.a11y-panel {
    position: fixed;
    bottom: 90px;
    left: 20px;
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    width: 280px;
    z-index: 10000;
    transform: translateY(20px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    border: 1px solid rgba(0,0,0,0.05);
}
.a11y-panel.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}
.a11y-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}
.a11y-header h4 {
    margin: 0;
    color: var(--primary);
    font-size: 16px;
    font-family: 'Outfit', sans-serif;
}
.a11y-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 16px;
    transition: 0.2s;
}
.a11y-close:hover {
    color: var(--accent);
}
.a11y-options {
    padding: 15px 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.a11y-btn {
    background: var(--bg-light);
    border: 1px solid rgba(0,0,0,0.05);
    padding: 10px 15px;
    border-radius: 8px;
    color: var(--primary);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: 0.2s;
    text-align: left;
    font-size: 14px;
    font-family: 'Inter', sans-serif;
}
.a11y-btn:hover {
    background: rgba(199, 161, 89, 0.1);
    color: var(--accent);
    border-color: var(--accent);
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 20px;
    left: 20px;
    transform: translateY(100px);
    background: var(--white);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
    width: 320px;
    max-width: calc(100% - 40px);
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(0,0,0,0.05);
}
.cookie-banner.show {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}
.cookie-content {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}
.cookie-icon {
    font-size: 24px;
    color: var(--accent);
    margin-top: 2px;
}
.cookie-content p {
    margin: 0;
    font-size: 12px;
    color: var(--text-dark);
    line-height: 1.5;
}
.cookie-actions {
    display: flex;
    gap: 10px;
    width: 100%;
}
.cookie-actions .btn {
    padding: 8px 16px;
    font-size: 12px;
    flex: 1;
}
@media (max-width: 768px) {
    .cookie-banner {
        bottom: 80px;
    }
    .a11y-panel {
        bottom: 140px;
    }
}

/* Footer */
.footer {
    background: var(--primary);
    color: rgba(255, 255, 255, 0.7);
    padding: 80px 0 40px;
}

.footer h4 {
    color: var(--white);
    margin-bottom: 16px;
}

.footer a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer a:hover {
    color: var(--accent);
}

.footer-logo img {
    height: 40px;
    filter: grayscale(1) brightness(10);
    margin-bottom: 24px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 40px;
    text-align: center;
    font-size: 14px;
}

/* FAQ Section */
.faq-section {
    background: var(--bg-light);
    padding: 100px 0;
}

.faq-grid {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    gap: 16px;
}

.faq-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}

.faq-question {
    padding: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 700;
    color: var(--primary);
    font-family: 'Outfit', sans-serif;
    font-size: 18px;
}

.faq-question i {
    transition: transform 0.3s ease;
    color: var(--accent);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 0 24px;
    color: var(--text-muted);
    font-size: 18px;
    line-height: 1.8;
    background: #fff;
}

.faq-item.active {
    border-color: var(--accent);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.faq-item.active .faq-answer {
    max-height: 1000px;
    padding: 24px;
    border-top: 1px solid var(--border);
}

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

/* Segment Cards Grid */
.segment-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
    margin: 50px 0;
}

.segment-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(12, 45, 76, 0.04);
    border: 1px solid rgba(12, 45, 76, 0.06);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.segment-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(12, 45, 76, 0.12);
    border-color: var(--accent);
}

.segment-card-image-wrapper {
    position: relative;
    height: 190px;
    width: 100%;
    overflow: hidden;
}

.segment-card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.segment-card:hover .segment-card-image {
    transform: scale(1.06);
}

.segment-card-image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(12, 45, 76, 0) 50%, rgba(12, 45, 76, 0.65) 100%);
}

.segment-card-badge {
    position: absolute;
    bottom: 15px;
    left: 20px;
    background: var(--accent);
    color: var(--white);
    padding: 5px 14px;
    border-radius: 99px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

.segment-card-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
    text-align: left;
}

.segment-card-title {
    font-size: 20px;
    color: var(--primary);
    margin-bottom: 12px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
}

.segment-card-title i {
    color: var(--accent);
    font-size: 20px;
}

.segment-card-desc {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.6;
    flex: 1;
}