:root {
    --bg-dark: #030b18;
    --bg-primary: #06152f;
    --bg-secondary: #081d3b;
    --bg-card: #0b2345;
    --bg-card-light: #102b52;

    --gold: #f7c948;
    --gold-light: #ffd866;
    --gold-dark: #e6a900;

    --blue: #1687ff;
    --blue-light: #32a8ff;
    --cyan: #22d3ee;

    --white: #ffffff;
    --text: #edf4ff;
    --text-secondary: #c1cee0;
    --text-muted: #8fa1b8;

    --border: rgba(255, 255, 255, 0.09);
    --border-gold: rgba(247, 201, 72, 0.28);

    --shadow-sm: 0 8px 25px rgba(0, 0, 0, 0.18);
    --shadow-md: 0 15px 40px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 25px 70px rgba(0, 0, 0, 0.35);

    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;

    --transition: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--bg-dark);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

body,
button,
a {
    -webkit-font-smoothing: antialiased;
}

img {
    display: block;
    max-width: 100%;
}

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

button {
    font-family: inherit;
}

ul {
    list-style: none;
}

.container {
    width: min(1180px, 90%);
    margin: 0 auto;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(3, 11, 24, 0.88);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: var(--transition);
}

.header-container {
    min-height: 82px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.logo img {
    width: 145px;
    height: auto;
    object-fit: contain;
}

.nav {
    margin-left: auto;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-list a {
    position: relative;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    padding: 8px 0;
    transition: var(--transition);
}

.nav-list a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    border-radius: 5px;
    background: var(--gold);
    transition: var(--transition);
}

.nav-list a:hover,
.nav-list a.active {
    color: var(--white);
}

.nav-list a:hover::after,
.nav-list a.active::after {
    width: 100%;
}

.header-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 17px;
    border-radius: 9px;
    background: linear-gradient(
        135deg,
        var(--gold),
        var(--gold-dark)
    );
    color: var(--bg-dark);
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
    box-shadow: 0 8px 25px rgba(247, 201, 72, 0.12);
    transition: var(--transition);
}

.header-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(247, 201, 72, 0.25);
}

.header-cta i {
    font-size: 15px;
}

.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--white);
    font-size: 19px;
    cursor: pointer;
    transition: var(--transition);
}

.menu-toggle:hover {
    color: var(--gold);
    border-color: var(--border-gold);
}

.hero {
    position: relative;
    min-height: 100vh;
    overflow: hidden;
    background: linear-gradient(
        90deg,
        rgba(3, 11, 24, 0.97) 0%,
        rgba(3, 11, 24, 0.88) 35%,
        rgba(3, 11, 24, 0.58) 65%,
        rgba(3, 11, 24, 0.25) 100%
    ),
    url(imagens/sobre-energia-solar.png)
    center center / cover no-repeat;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(
        circle at 72% 45%,
        rgba(247, 201, 72, 0.13),
        transparent 32%
    );
    pointer-events: none;
}

.hero-container {
    position: relative;
    z-index: 2;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
    padding-top: 82px;
}

.hero-content {
    max-width: 700px;
}

.hero-tag,
.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--gold);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.8px;
    text-transform: uppercase;
}

.hero-tag {
    padding: 8px 13px;
    margin-bottom: 22px;
    border: 1px solid var(--border-gold);
    border-radius: 50px;
    background: rgba(247, 201, 72, 0.07);
}

.hero-tag i {
    font-size: 13px;
}

.hero h1 {
    max-width: 720px;
    margin-bottom: 24px;
    font-family: 'Montserrat', sans-serif;
    color: var(--white);
    font-size: clamp(3rem, 6vw, 5.5rem);
    font-weight: 800;
    line-height: 1.02;
    letter-spacing: -3px;
}

.hero h1 span,
.about-content h2 span,
.section-header h2 span,
.cta-container h2 span,
.faq-intro h2 span,
.contact-info h2 span,
.contact-cta h3 span {
    color: var(--gold);
}

.hero-description {
    max-width: 620px;
    margin-bottom: 32px;
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.8;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 50px;
    padding: 13px 23px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 700;
    transition: var(--transition);
    cursor: pointer;
}

.btn-primary {
    color: var(--bg-dark);
    background: linear-gradient(
        135deg,
        var(--gold-light),
        var(--gold-dark)
    );
    box-shadow: 0 10px 30px rgba(247, 201, 72, 0.15);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 35px rgba(247, 201, 72, 0.27);
}

.btn-outline {
    color: var(--white);
    background: rgba(255, 255, 255, 0.045);
    border: 1px solid rgba(255, 255, 255, 0.16);
}

.btn-outline:hover {
    color: var(--gold);
    border-color: var(--border-gold);
    background: rgba(247, 201, 72, 0.05);
    transform: translateY(-3px);
}

.hero-buttons {
    display: flex;
    align-items: center;
    gap: 13px;
    flex-wrap: wrap;
    margin-bottom: 42px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 0;
}

.hero-stat {
    min-width: 120px;
    padding-right: 25px;
    margin-right: 25px;
    border-right: 1px solid rgba(255, 255, 255, 0.13);
}

.hero-stat:last-child {
    border-right: 0;
    padding-right: 0;
    margin-right: 0;
}

.hero-stat strong {
    display: block;
    color: var(--white);
    font-family: 'Montserrat', sans-serif;
    font-size: 22px;
    font-weight: 800;
}

.hero-stat span {
    color: var(--text-muted);
    font-size: 11px;
}

.hero-card {
    width: 285px;
    flex-shrink: 0;
    padding: 27px;
    border: 1px solid rgba(247, 201, 72, 0.18);
    border-radius: 20px;
    background: linear-gradient(
        145deg,
        rgba(8, 29, 59, 0.90),
        rgba(3, 11, 24, 0.88)
    );
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-lg);
}

.hero-card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    border-radius: 13px;
    background: rgba(247, 201, 72, 0.11);
    color: var(--gold);
    font-size: 20px;
}

.hero-card > span {
    display: block;
    margin-bottom: 8px;
    color: var(--gold);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 1.4px;
}

.hero-card strong {
    display: block;
    margin-bottom: 10px;
    color: var(--white);
    font-family: 'Montserrat', sans-serif;
    font-size: 19px;
    line-height: 1.3;
}

.hero-card p {
    color: var(--text-muted);
    font-size: 12px;
    line-height: 1.7;
}

.section {
    padding: 110px 0;
}

.section-dark {
    background: linear-gradient(
        180deg,
        var(--bg-primary),
        var(--bg-secondary)
    );
}

.section-header {
    max-width: 720px;
    margin: 0 auto 55px;
    text-align: center;
}

.section-tag {
    margin-bottom: 12px;
}

.section-header h2 {
    margin-bottom: 16px;
    color: var(--white);
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(2rem, 4vw, 3.2rem);
    line-height: 1.12;
    letter-spacing: -1.5px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.8;
}

.about {
    background: var(--bg-dark);
}

.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 75px;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.about-image::before {
    content: "";
    position: absolute;
    top: -15px;
    left: -15px;
    width: 100px;
    height: 100px;
    border-top: 2px solid var(--gold);
    border-left: 2px solid var(--gold);
    border-radius: 15px 0 0 0;
    z-index: 0;
}

.about-image::after {
    content: "";
    position: absolute;
    right: -15px;
    bottom: -15px;
    width: 100px;
    height: 100px;
    border-right: 2px solid var(--blue);
    border-bottom: 2px solid var(--blue);
    border-radius: 0 0 15px 0;
    z-index: 0;
}

.about-badge {
    position: absolute;
    left: 25px;
    bottom: 25px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 17px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 13px;
    background: rgba(3, 11, 24, 0.88);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
}

.about-badge > i {
    color: var(--gold);
    font-size: 22px;
}

.about-badge strong {
    display: block;
    color: var(--white);
    font-size: 12px;
}

.about-badge span {
    display: block;
    color: var(--text-muted);
    font-size: 10px;
}

.about-content .section-tag {
    margin-bottom: 15px;
}

.about-content h2 {
    margin-bottom: 22px;
    color: var(--white);
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.12;
    letter-spacing: -1px;
}

.about-content p {
    margin-bottom: 16px;
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.85;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 13px;
    margin: 28px 0;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 12px;
}

.about-feature i {
    color: var(--gold);
    font-size: 14px;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: var(--gold);
    font-size: 13px;
    font-weight: 700;
    transition: var(--transition);
}

.text-link i {
    transition: var(--transition);
}

.text-link:hover {
    color: var(--gold-light);
}

.text-link:hover i {
    transform: translateX(5px);
}

.solutions {
    background: var(--bg-primary);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.solution-card {
    position: relative;
    min-height: 310px;
    padding: 30px 25px;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: linear-gradient(
        145deg,
        rgba(255, 255, 255, 0.055),
        rgba(255, 255, 255, 0.018)
    );
    transition: var(--transition);
}

.solution-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(
        90deg,
        var(--gold),
        var(--blue)
    );
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.solution-card::after {
    content: "";
    position: absolute;
    right: -70px;
    bottom: -70px;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: rgba(22, 135, 255, 0.05);
    transition: var(--transition);
}

.solution-card:hover {
    transform: translateY(-8px);
    border-color: rgba(247, 201, 72, 0.22);
    box-shadow: var(--shadow-md);
}

.solution-card:hover::before {
    transform: scaleX(1);
}

.solution-card:hover::after {
    transform: scale(1.3);
}

.solution-icon {
    width: 54px;
    height: 54px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 22px;
    border-radius: 14px;
    background: rgba(247, 201, 72, 0.09);
    color: var(--gold);
    font-size: 21px;
    transition: var(--transition);
}

.solution-card:hover .solution-icon {
    background: var(--gold);
    color: var(--bg-dark);
    transform: scale(1.05);
}

.solution-number {
    display: block;
    margin-bottom: 7px;
    color: var(--text-muted);
    font-family: 'Montserrat', sans-serif;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1px;
}

.solution-card h3 {
    position: relative;
    z-index: 2;
    margin-bottom: 12px;
    color: var(--white);
    font-family: 'Montserrat', sans-serif;
    font-size: 18px;
    line-height: 1.35;
}

.solution-card p {
    position: relative;
    z-index: 2;
    margin-bottom: 20px;
    color: var(--text-muted);
    font-size: 12px;
    line-height: 1.7;
}

.solution-card > a {
    position: relative;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--gold);
    font-size: 11px;
    font-weight: 700;
    transition: var(--transition);
}

.solution-card > a i {
    transition: var(--transition);
}

.solution-card > a:hover i {
    transform: translateX(5px);
}

.benefits {
    background: linear-gradient(
        180deg,
        var(--bg-secondary),
        var(--bg-dark)
    );
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.benefit {
    padding: 32px 25px;
    text-align: center;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--transition);
}

.benefit:hover {
    transform: translateY(-7px);
    border-color: var(--border-gold);
    background: rgba(255, 255, 255, 0.045);
    box-shadow: var(--shadow-sm);
}

.benefit-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    border-radius: 16px;
    background: rgba(247, 201, 72, 0.09);
    color: var(--gold);
    font-size: 24px;
    transition: var(--transition);
}

.benefit:hover .benefit-icon {
    background: var(--gold);
    color: var(--bg-dark);
    transform: rotate(-3deg) scale(1.05);
}

.benefit h3 {
    margin-bottom: 9px;
    color: var(--white);
    font-family: 'Montserrat', sans-serif;
    font-size: 17px;
}

.benefit p {
    color: var(--text-muted);
    font-size: 12px;
    line-height: 1.7;
}

.process {
    background: var(--bg-dark);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.process-step {
    position: relative;
    padding: 30px 20px;
    text-align: center;
}

.process-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 48px;
    right: -25px;
    width: 50px;
    border-top: 1px dashed rgba(247, 201, 72, 0.35);
}

.process-number {
    width: 54px;
    height: 54px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 17px;
    border: 1px solid rgba(247, 201, 72, 0.25);
    border-radius: 50%;
    background: rgba(247, 201, 72, 0.08);
    color: var(--gold);
    font-family: 'Montserrat', sans-serif;
    font-size: 14px;
    font-weight: 800;
}

.process-step > i {
    display: block;
    margin-bottom: 14px;
    color: var(--blue-light);
    font-size: 21px;
}

.process-step h3 {
    margin-bottom: 8px;
    color: var(--white);
    font-family: 'Montserrat', sans-serif;
    font-size: 17px;
}

.process-step p {
    color: var(--text-muted);
    font-size: 12px;
    line-height: 1.7;
}

.projects {
    background: var(--bg-primary);
}

.projects-header {
    max-width: none;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 40px;
    text-align: left;
}

.projects-header > div {
    max-width: 650px;
}

.projects-header > p {
    max-width: 330px;
    margin-bottom: 4px;
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.8;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.project-card {
    position: relative;
    height: 400px;
    overflow: hidden;
    border-radius: var(--radius-md);
    background: var(--bg-card);
    border: 1px solid var(--border);
}

.project-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        transparent 30%,
        rgba(3, 11, 24, 0.08) 45%,
        rgba(3, 11, 24, 0.95) 100%
    );
    z-index: 1;
}

.project-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s ease;
}

.project-card:hover img {
    transform: scale(1.07);
}

.project-info {
    position: absolute;
    left: 25px;
    right: 25px;
    bottom: 24px;
    z-index: 2;
}

.project-info span {
    display: inline-block;
    margin-bottom: 7px;
    color: var(--gold);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 1.5px;
}

.project-info h3 {
    color: var(--white);
    font-family: 'Montserrat', sans-serif;
    font-size: 18px;
    line-height: 1.30;
}

.numbers {
    position: relative;
    padding: 85px 0;
    background: linear-gradient(
        90deg,
        rgba(3, 11, 24, 0.96),
        rgba(6, 21, 47, 0.87)
    ),
    url("imagens/projeto-1.png")
    center / cover no-repeat;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.numbers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.number-item {
    padding: 10px 20px;
    border-right: 1px solid rgba(255, 255, 255, 0.12);
}

.number-item:last-child {
    border-right: 0;
}

.number-item strong {
    display: block;
    margin-bottom: 5px;
    color: var(--gold);
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.1;
}

.number-item span {
    color: var(--text-secondary);
    font-size: 12px;
}

.testimonials {
    background: var(--bg-dark);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.testimonial-card {
    padding: 30px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: linear-gradient(
        145deg,
        rgba(255, 255, 255, 0.045),
        rgba(255, 255, 255, 0.018)
    );
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-6px);
    border-color: rgba(247, 201, 72, 0.18);
    box-shadow: var(--shadow-sm);
}

.testimonial-stars {
    display: flex;
    gap: 3px;
    margin-bottom: 18px;
    color: var(--gold);
    font-size: 11px;
}

.testimonial-card > p {
    min-height: 105px;
    margin-bottom: 25px;
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.8;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 18px;
    border-top: 1px solid var(--border);
}

.testimonial-avatar {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border-radius: 50%;
    background: linear-gradient(
        135deg,
        var(--gold),
        var(--gold-dark)
    );
    color: var(--bg-dark);
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
}

.testimonial-author strong {
    display: block;
    color: var(--white);
    font-size: 12px;
}

.testimonial-author span {
    display: block;
    color: var(--text-muted);
    font-size: 10px;
}

.cta-section {
    position: relative;
    padding: 100px 0;
    overflow: hidden;
    text-align: center;
    background: linear-gradient(
        135deg,
        rgba(247, 201, 72, 0.96),
        rgba(255, 183, 3, 0.90)
    ),
    url("imagens/projeto-1.png")
    center / cover no-repeat;
}

.cta-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(
        circle at 50% 20%,
        rgba(255, 255, 255, 0.18),
        transparent 40%
    );
}

.cta-container {
    position: relative;
    z-index: 2;
}

.cta-container .section-tag {
    color: rgba(3, 11, 24, 0.65);
}

.cta-container h2 {
    max-width: 800px;
    margin: 8px auto 15px;
    color: var(--bg-dark);
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(2.2rem, 5vw, 4rem);
    line-height: 1.08;
    letter-spacing: -2px;
}

.cta-container h2 span {
    color: var(--bg-dark);
}

.cta-container p {
    max-width: 580px;
    margin: 0 auto 28px;
    color: rgba(3, 11, 24, 0.72);
    font-size: 14px;
}

.cta-container .btn-primary {
    background: var(--bg-dark);
    color: var(--white);
    box-shadow: 0 16px 35px rgba(3, 11, 24, 0.28);
}

.faq {
    background: var(--bg-secondary);
}

.faq-container {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 80px;
    align-items: start;
}

.faq-intro {
    position: sticky;
    top: 120px;
}

.faq-intro .section-tag {
    margin-bottom: 14px;
}

.faq-intro h2 {
    margin-bottom: 18px;
    color: var(--white);
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.1;
}

.faq-intro p {
    max-width: 380px;
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.8;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.faq-item {
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.025);
    transition: var(--transition);
}

.faq-item:hover {
    border-color: rgba(247, 201, 72, 0.18);
}

.faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 20px 22px;
    color: var(--white);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary i {
    flex-shrink: 0;
    color: var(--gold);
    font-size: 13px;
    transition: var(--transition);
}

.faq-item[open] summary i {
    transform: rotate(45deg);
}

.faq-item p {
    padding: 0 22px 21px;
    color: var(--text-muted);
    font-size: 12px;
    line-height: 1.8;
}

.contact {
    background: var(--bg-dark);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 0.9fr;
    gap: 75px;
    align-items: center;
}

.contact-info .section-tag {
    margin-bottom: 14px;
}

.contact-info h2 {
    max-width: 650px;
    margin-bottom: 20px;
    color: var(--white);
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.1;
    letter-spacing: -1px;
}

.contact-info > p {
    max-width: 580px;
    margin-bottom: 30px;
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.8;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 14px;
    width: fit-content;
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateX(4px);
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border-radius: 12px;
    background: rgba(247, 201, 72, 0.08);
    color: var(--gold);
    font-size: 18px;
}

.contact-item span {
    display: block;
    color: var(--text-muted);
    font-size: 10px;
}

.contact-item strong {
    display: block;
    margin-top: 2px;
    color: var(--white);
    font-size: 13px;
}

.contact-cta {
    position: relative;
    padding: 42px;
    overflow: hidden;
    border: 1px solid rgba(247, 201, 72, 0.18);
    border-radius: var(--radius-lg);
    background: linear-gradient(
        145deg,
        var(--bg-card),
        var(--bg-primary)
    );
    box-shadow: var(--shadow-lg);
}

.contact-cta::before {
    content: "";
    position: absolute;
    top: -80px;
    right: -80px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(247, 201, 72, 0.07);
}

.contact-cta-icon {
    position: relative;
    width: 58px;
    height: 58px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    border-radius: 16px;
    background: rgba(37, 211, 102, 0.10);
    color: #25d366;
    font-size: 26px;
}

.contact-cta > span {
    position: relative;
    display: block;
    margin-bottom: 8px;
    color: var(--gold);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 1.5px;
}

.contact-cta h3 {
    position: relative;
    margin-bottom: 14px;
    color: var(--white);
    font-family: 'Montserrat', sans-serif;
    font-size: 25px;
    line-height: 1.2;
}

.contact-cta p {
    position: relative;
    margin-bottom: 25px;
    color: var(--text-muted);
    font-size: 12px;
    line-height: 1.8;
}

.contact-cta .btn {
    position: relative;
}

footer {
    background: #020813;
    border-top: 1px solid var(--border);
}

.footer-container {
    min-height: 180px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: inline-flex;
    margin-bottom: 12px;
}

.footer-logo img {
    width: 130px;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 11px;
    line-height: 1.7;
}

.footer-social h3 {
    margin-bottom: 12px;
    color: var(--white);
    font-size: 12px;
}

.social-links {
    display: flex;
    gap: 8px;
}

.social-links a {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-secondary);
    font-size: 14px;
    transition: var(--transition);
}

.social-links a:hover {
    color: var(--gold);
    border-color: var(--border-gold);
    background: rgba(247, 201, 72, 0.07);
    transform: translateY(-3px);
}

.footer-bottom {
    padding: 18px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-bottom .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.footer-bottom p {
    color: #687991;
    font-size: 10px;
}

.footer-bottom strong {
    color: var(--text-secondary);
}

.footer-bottom a {
    color: var(--gold);
    transition: var(--transition);
}

.footer-bottom a:hover {
    color: var(--gold-light);
}

.selection {
    background: var(--gold);
    color: var(--bg-dark);
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: #19385f;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gold-dark);
}

/* =========================================================
   RESPONSIVIDADE - 1100PX
========================================================= */

@media (max-width: 1100px) {

    .header-container {
        gap: 18px;
    }

    .nav-list {
        gap: 18px;
    }

    .header-cta {
        padding: 10px 13px;
    }

    .hero-container {
        gap: 40px;
    }

    .hero-card {
        width: 250px;
    }

    .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .process-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .process-step:nth-child(2)::after {
        display: none;
    }
}

/* =========================================================
   RESPONSIVIDADE - 900PX
========================================================= */

@media (max-width: 900px) {

    .nav {
        margin-left: 0;
    }

    .nav-list {
        gap: 14px;
    }

    .nav-list a {
        font-size: 12px;
    }

    .hero-container {
        padding-top: 110px;

        flex-direction: column;

        align-items: flex-start;

        justify-content: center;
    }

    .hero-card {
        display: none;
    }

    .hero-content {
        max-width: 750px;
    }

    .about-container {
        grid-template-columns: 1fr;

        gap: 50px;
    }

    .about-image {
        max-width: 700px;

        margin: 0 auto;
    }

    .about-content {
        max-width: 700px;

        margin: 0 auto;
    }

    .projects-header {
        flex-direction: column;

        align-items: flex-start;

        gap: 15px;
    }

    .projects-header > p {
        max-width: 600px;
    }

    .faq-container {
        grid-template-columns: 1fr;

        gap: 45px;
    }

    .faq-intro {
        position: static;
    }

    .faq-intro p {
        max-width: 600px;
    }

    .contact-container {
        grid-template-columns: 1fr;

        gap: 45px;
    }

    .contact-cta {
        max-width: 650px;
    }
}

/* =========================================================
   RESPONSIVIDADE - 768PX
========================================================= */

@media (max-width: 768px) {

    .header-container {
        min-height: 72px;
    }

    .logo img {
        width: 125px;
    }

    .menu-toggle {
        display: flex;
    }

    .nav {
        position: absolute;

        top: 72px;
        left: 0;

        width: 100%;

        display: none;

        padding: 8px 5% 20px;

        background: rgba(3, 11, 24, 0.98);

        border-bottom: 1px solid var(--border);

        box-shadow: var(--shadow-md);
    }

    .nav.active {
        display: block;
    }

    .nav-list {
        flex-direction: column;

        align-items: stretch;

        gap: 0;
    }

    .nav-list li {
        width: 100%;
    }

    .nav-list a {
        display: block;

        padding: 14px 5px;

        font-size: 13px;
    }

    .nav-list a::after {
        display: none;
    }

    .header-cta {
        display: none;
    }

    .hero {
        min-height: 100vh;

        background:
            linear-gradient(
                90deg,
                rgba(3, 11, 24, 0.94),
                rgba(3, 11, 24, 0.73)
            ),
            url("imagens/sobre-energia-solar.jpg")
            center / cover no-repeat;
    }

    .hero-container {
        min-height: 100vh;

        padding-top: 90px;
    }

    .hero h1 {
        font-size: clamp(2.8rem, 11vw, 4.3rem);

        letter-spacing: -2px;
    }

    .hero-description {
        font-size: 14px;
    }

    .hero-buttons {
        align-items: stretch;

        flex-direction: column;

        max-width: 350px;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .hero-stats {
        width: 100%;

        flex-wrap: wrap;

        gap: 20px 0;
    }

    .hero-stat {
        min-width: auto;

        flex: 1;

        padding-right: 15px;

        margin-right: 15px;
    }

    .hero-stat strong {
        font-size: 18px;
    }

    .section {
        padding: 80px 0;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .solutions-grid,
    .benefits-grid {
        grid-template-columns: 1fr 1fr;
    }

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

    .process-step:nth-child(odd)::after {
        display: none;
    }

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

    .project-card {
        height: 380px;
    }

    .numbers {
        padding: 65px 0;
    }

    .numbers-grid {
        grid-template-columns: 1fr 1fr;

        row-gap: 35px;
    }

    .number-item:nth-child(2) {
        border-right: 0;
    }

    .number-item:nth-child(3) {
        border-right: 1px solid rgba(255, 255, 255, 0.12);
    }

    .number-item:nth-child(4) {
        border-right: 0;
    }

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

    .testimonial-card > p {
        min-height: auto;
    }

    .cta-section {
        padding: 80px 0;
    }

    .footer-container {
        min-height: auto;

        padding: 45px 0;

        flex-direction: column;

        align-items: flex-start;
    }

    .footer-bottom .container {
        flex-direction: column;

        align-items: flex-start;
    }
}

/* =========================================================
   RESPONSIVIDADE - 520PX
========================================================= */

@media (max-width: 520px) {

    .container {
        width: 92%;
    }

    .hero h1 {
        font-size: clamp(2.5rem, 13vw, 3.6rem);
    }

    .hero-description {
        font-size: 13px;

        line-height: 1.75;
    }

    .hero-stats {
        gap: 15px 0;
    }

    .hero-stat {
        flex: 0 0 33.333%;

        padding-right: 10px;

        margin-right: 10px;
    }

    .hero-stat strong {
        font-size: 16px;
    }

    .hero-stat span {
        font-size: 9px;
    }

    .about-image img {
        height: 360px;
    }

    .about-badge {
        left: 15px;
        bottom: 15px;

        padding: 11px 13px;
    }

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

    .solutions-grid,
    .benefits-grid,
    .process-grid {
        grid-template-columns: 1fr;
    }

    .solution-card {
        min-height: auto;

        padding: 27px 23px;
    }

    .process-step {
        padding: 25px 15px;
    }

    .process-step::after {
        display: none !important;
    }

    .projects-header h2 {
        font-size: 2rem;
    }

    .project-card {
        height: 330px;
    }

    .numbers-grid {
        grid-template-columns: 1fr 1fr;

        gap: 0;
    }

    .number-item {
        padding: 20px 10px;

        border-bottom: 1px solid rgba(255, 255, 255, 0.10);
    }

    .number-item:nth-child(3),
    .number-item:nth-child(4) {
        border-bottom: 0;
    }

    .number-item:nth-child(2) {
        border-right: 0;
    }

    .number-item strong {
        font-size: 28px;
    }

    .number-item span {
        font-size: 9px;
    }

    .contact-cta {
        padding: 30px 24px;
    }

    .contact-cta h3 {
        font-size: 22px;
    }

    .footer-brand {
        max-width: 100%;
    }
}

/* =========================================================
   RESPONSIVIDADE - 380PX
========================================================= */

@media (max-width: 380px) {

    .logo img {
        width: 112px;
    }

    .menu-toggle {
        width: 39px;
        height: 39px;
    }

    .hero h1 {
        font-size: 2.45rem;
    }

    .hero-stats {
        display: grid;

        grid-template-columns: repeat(3, 1fr);
    }

    .hero-stat {
        width: auto;

        padding-right: 7px;

        margin-right: 7px;
    }

    .hero-stat strong {
        font-size: 14px;
    }

    .hero-stat span {
        font-size: 8px;
    }

    .section {
        padding: 70px 0;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .about-content h2,
    .contact-info h2 {
        font-size: 2rem;
    }

    .cta-container h2 {
        font-size: 2.2rem;
    }
}