:root {
    --primary-color: #ffb03b;
    --primary-hover: #e68e10;
    --secondary-color: #111111;
    --text-color: #222222;
    --text-light: #7a7a7a;
    --bg-white: #fbf8f2;
    --bg-light: #f3eee7;
    --white: #ffffff;
    --black: #000000;
    --header-bg: radial-gradient(circle at top left, rgba(255, 176, 59, 0.10), transparent 32%), linear-gradient(135deg, #0c0c0c 0%, #141414 45%, #080808 100%);
    --transition: all 0.3s ease;
    --header-height: 80px;
    --header-height-scrolled: 80px;
    --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.08);
}

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

html {
    scroll-behavior: smooth;
}

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

img {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-user-drag: none;
    user-drag: none;
    pointer-events: none;
}

a,
button,
input,
textarea,
label {
    pointer-events: auto;
}

/* Scroll natural */
.snap-container {
    min-height: 100vh;
    overflow: visible;
    scroll-behavior: smooth;
}

/* Seções sem scroll snap */
section {
    min-height: 100vh;
    width: 100%;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    scroll-margin-top: var(--header-height);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    position: relative;
    padding-bottom: 1rem;
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background-color: var(--primary-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 0 40px;
    z-index: 1000;
    transition: var(--transition);
    background: var(--header-bg);
    box-shadow: none;
    overflow: visible;
}

header.scrolled {
    height: var(--header-height-scrolled);
    background: var(--header-bg);
}

.header-left {
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

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

.header-right {
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.logo {
    height: 100%;
    width: 320px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    overflow: visible;
    background: transparent;
}

.logo img {
    height: 75px;
    width: auto;
    max-width: 100%;
    display: block;
    object-fit: contain;
    background: transparent;
    border: none;
    filter: none;
    transition: var(--transition);
}

.logo a {
    display: flex;
    align-items: center;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.logo a:hover {
    transform: scale(1.08);
}

header.scrolled .logo img {
    height: 75px;
}

/* Navigation */
nav ul {
    display: flex;
    list-style: none;
    justify-content: center;
    align-items: center;
    gap: 30px;
}

nav ul li {
    margin-left: 0;
}

nav ul li a {
    position: relative;
    display: inline-block;
    text-decoration: none;
    color: var(--white);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    transition: var(--transition);
    padding-bottom: 8px;
}

nav ul li a::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 0;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 10px;
    transform: translateX(-50%);
    transition: width 0.3s ease;
}

header.scrolled nav ul li a {
    color: var(--white);
}

nav ul li a:hover,
nav ul li a.active {
    color: var(--primary-color) !important;
}

nav ul li a:hover::after,
nav ul li a.active::after {
    width: 100%;
}

.header-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 0 22px;
    background: linear-gradient(135deg, #ffd34e 0%, #ff7b00 100%);
    color: var(--white);
    border: none;
    border-radius: 8px;
    text-decoration: none;
    text-transform: uppercase;
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    transition: var(--transition);
    white-space: nowrap;
    box-shadow: 0 4px 15px rgba(255, 123, 0, 0.3);
}

.header-cta i {
    font-size: 1.1rem;
}

.header-cta:hover {
    background: linear-gradient(135deg, #ffdf70 0%, #ff8a1e 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 123, 0, 0.45);
}

/* Hero */
.hero {
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: var(--header-height);
    overflow: hidden;
}

.hero-slider {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.slide.active {
    opacity: 1;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    z-index: 0;
}

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

.hero h1 {
    font-size: 5rem;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease forwards;
}

.hero-description {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

/* Common */
.section-content {
    flex: 1;
    display: flex;
    align-items: center;
    padding: 92px 0 52px;
}

.section-block {
    display: block;
}

/* About */
.about {
    background-color: var(--bg-white);
}

.about-grid {
    width: 100%;
    display: flex;
    justify-content: center;
}

.centered-about {
    max-width: 980px;
    width: 100%;
    margin: 0 auto;
    text-align: center;
}

.section-label {
    display: block;
    color: var(--primary-color);
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 0.7rem;
    text-align: center;
}

.centered-about h2::after {
    left: 50%;
    transform: translateX(-50%);
}

.about-intro {
    max-width: 760px;
    margin: 0 auto 1rem;
    color: var(--text-light);
    font-size: 0.96rem;
    line-height: 1.72;
}

.about-intro strong {
    color: var(--text-color);
    font-weight: 800;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin: 28px auto 16px auto;
    max-width: 930px;
    width: 100%;
    align-items: stretch;
}

.stat-card {
    background: var(--white);
    border: 1px solid rgba(255, 176, 59, 0.18);
    border-radius: 14px;
    padding: 17px 14px;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.045);
    text-align: center;
    min-height: 82px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.stat-card strong {
    display: block;
    color: var(--primary-color);
    font-size: 1.45rem;
    line-height: 1;
    margin-bottom: 7px;
}

.stat-card span {
    display: block;
    color: var(--text-light);
    font-size: 0.76rem;
    font-weight: 600;
    line-height: 1.35;
}

.mvv-cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin: 0 auto;
    max-width: 930px;
    width: 100%;
    align-items: stretch;
}

.card {
    background: var(--bg-light);
    padding: 24px 18px;
    border-radius: 14px;
    text-align: center;
    transition: var(--transition);
    border-bottom: 4px solid transparent;
    min-height: 220px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.card:hover {
    transform: translateY(-8px);
    background: var(--white);
    border-bottom-color: var(--primary-color);
    box-shadow: var(--shadow-soft);
}

.card i {
    width: 52px;
    height: 52px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 176, 59, 0.15);
    font-size: 1.55rem;
    color: var(--primary-color);
    margin-bottom: 16px;
    flex-shrink: 0;
}

.card h3 {
    font-size: 0.95rem;
    margin-bottom: 14px;
    min-height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card p {
    font-size: 0.76rem;
    line-height: 1.6;
    color: var(--text-light);
    max-width: 235px;
    margin: 0 auto;
    flex: 1;
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

/* Projects */
.projects {
    background:
        radial-gradient(circle at top left, rgba(255, 176, 59, 0.10), transparent 32%),
        linear-gradient(135deg, #0c0c0c 0%, #141414 45%, #080808 100%);
    color: var(--white);
}

.projects .section-block {
    text-align: center;
}

.projects-label {
    display: inline-block;
    color: var(--primary-color);
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 0.7rem;
}

.projects h2 {
    text-align: center;
    margin-bottom: 1.2rem;
}

.projects h2::after {
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
}

.projects-description {
    max-width: 820px;
    margin: 0 auto 34px;
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.96rem;
    line-height: 1.75;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
    max-width: 1160px;
    margin: 0 auto;
}

.project-item {
    position: relative;
    height: 255px;
    overflow: hidden;
    border-radius: 18px;
    background: #1f1f1f;
    box-shadow: 0 22px 55px rgba(0, 0, 0, 0.34);
    isolation: isolate;
    cursor: zoom-in;
    transition: box-shadow 0.4s ease, transform 0.4s ease;
}

.project-item:hover {
    box-shadow: 0 25px 65px rgba(255, 176, 59, 0.25);
    transform: translateY(-4px);
}

.project-item::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 18px;
    border: 1px solid rgba(255, 176, 59, 0.18);
    z-index: 4;
    pointer-events: none;
}

.project-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.65s ease, filter 0.65s ease;
}

.project-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background:
        linear-gradient(180deg, rgba(0, 0, 0, 0.05) 0%, rgba(0, 0, 0, 0.15) 36%, rgba(0, 0, 0, 0.88) 100%),
        linear-gradient(90deg, rgba(0, 0, 0, 0.45), transparent 65%);
    transition: var(--transition);
}

.project-content {
    position: absolute;
    left: 0;
    bottom: 0;
    z-index: 2;
    width: 100%;
    padding: 24px;
    text-align: center;
    transform: translateY(10px);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.project-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: fit-content;
    background: rgba(255, 176, 59, 0.16);
    color: var(--primary-color);
    border: 1px solid rgba(255, 176, 59, 0.35);
    border-radius: 999px;
    padding: 6px 12px;
    font-size: 0.68rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    margin: 0 auto 12px;
    backdrop-filter: blur(8px);
}

.project-content h3 {
    color: var(--white);
    font-size: 1.05rem;
    line-height: 1.25;
    margin-bottom: 8px;
    text-align: center;
}

.project-content p {
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.78rem;
    line-height: 1.55;
    max-width: 92%;
    margin: 0 auto;
    text-align: center;
}

.project-item:hover img {
    transform: scale(1.09);
    filter: brightness(0.82) contrast(1.05);
}

.project-item:hover .project-overlay {
    background:
        linear-gradient(180deg, rgba(0, 0, 0, 0.03) 0%, rgba(0, 0, 0, 0.18) 30%, rgba(0, 0, 0, 0.94) 100%),
        linear-gradient(90deg, rgba(0, 0, 0, 0.58), transparent 70%);
}

.project-item:hover .project-content {
    transform: translateY(0);
}

/* Ajustes individuais das imagens */
.project-altura img {
    object-position: center 22%;
}

.project-altura:hover img {
    transform: scale(1.02);
}

.project-impermeabilizacao img {
    object-position: center 58%;
}

.project-fachada img {
    object-position: center top;
}

.project-condominio img {
    object-position: center center;
}

.project-pintura img {
    object-position: center center;
}

.project-remodelacao img {
    object-position: center center;
}

/* Lightbox */
.project-lightbox {
    position: fixed;
    inset: 0;
    z-index: 5000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 28px;
    background: rgba(0, 0, 0, 0.88);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.project-lightbox.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.project-lightbox-content {
    position: relative;
    width: min(1100px, 94vw);
    max-height: 88vh;
    border-radius: 18px;
    overflow: hidden;
    background: #111111;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
    transform: scale(0.94);
    transition: transform 0.3s ease;
}

.project-lightbox.open .project-lightbox-content {
    transform: scale(1);
}

.project-lightbox img {
    width: 100%;
    max-height: 78vh;
    display: block;
    object-fit: contain;
    background: #000000;
}

.project-lightbox-caption {
    padding: 18px 22px;
    background: #111111;
    color: #ffffff;
    font-size: 0.95rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-top: 1px solid rgba(255, 176, 59, 0.25);
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-lightbox-close {
    position: absolute;
    top: 14px;
    right: 14px;
    width: 42px;
    height: 42px;
    border: none;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.75);
    color: #ffffff;
    font-size: 1.4rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    transition: all 0.3s ease;
}

.project-lightbox-close:hover {
    background: var(--primary-color);
    transform: rotate(90deg);
}

/* Services */
.services {
    background-color: var(--bg-light);
}

.services .section-block {
    text-align: center;
}

.services h2 {
    text-align: center;
}

.services h2::after {
    left: 50%;
    transform: translateX(-50%);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 35px;
}

.service-card {
    background: var(--white);
    padding: 42px 35px;
    border-bottom: 4px solid transparent;
    transition: var(--transition);
    text-align: center;
    min-height: 260px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

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

.service-card i {
    font-size: 2.2rem;
    color: var(--primary-color);
    margin-bottom: 1.2rem;
}

.service-card h3 {
    text-align: center;
    margin-bottom: 0.7rem;
    line-height: 1.35;
}

.service-card p {
    font-size: 0.9rem;
    color: var(--text-light);
    text-align: center;
    max-width: 280px;
    margin: 0 auto;
}

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info p {
    margin-bottom: 2rem;
}

.contact-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.contact-item i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

/* Contact Form - Premium Redesign */
.contact-form {
    background: #ffffff;
    border-radius: 20px;
    padding: 36px 32px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.09);
    border: 1px solid rgba(0, 0, 0, 0.06);
}

.contact-form form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.contact-form .form-group {
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* Field wrapper — relative anchor for icon + floating label */
.field-wrapper {
    position: relative;
}

.field-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #b8b0a8;
    font-size: 0.82rem;
    pointer-events: none;
    transition: color 0.25s ease;
    z-index: 1;
}

.field-icon--textarea {
    top: 22px;
    transform: none;
}

/* Inputs & Textarea */
.field-wrapper input,
.field-wrapper textarea {
    width: 100%;
    padding: 24px 16px 8px 44px;
    border: 2px solid #e8e2da;
    border-radius: 12px;
    font-family: inherit;
    font-size: 0.93rem;
    color: var(--text-color);
    background: #faf8f5;
    outline: none;
    transition: border-color 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
    appearance: none;
    -webkit-appearance: none;
}

.field-wrapper textarea {
    padding-top: 30px;
    resize: vertical;
    min-height: 130px;
}

/* Floating Label */
.field-wrapper label {
    position: absolute;
    left: 44px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.9rem;
    color: #a09890;
    font-weight: 600;
    pointer-events: none;
    transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
}

.textarea-wrapper label {
    top: 22px;
    transform: none;
}

/* Label floats up when focused or has value */
.field-wrapper input:focus + label,
.field-wrapper input:not(:placeholder-shown) + label {
    top: 9px;
    transform: none;
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    color: var(--primary-color);
}

.field-wrapper textarea:focus + label,
.field-wrapper textarea:not(:placeholder-shown) + label {
    top: 8px;
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    color: var(--primary-color);
}

.required-star {
    color: var(--primary-color);
}

/* Focus state */
.field-wrapper input:focus,
.field-wrapper textarea:focus {
    border-color: var(--primary-color);
    background: #ffffff;
    box-shadow: 0 0 0 4px rgba(255, 176, 59, 0.13);
}

/* Icon color reacts to focus/error/success via :has() */
.field-wrapper:has(input:focus) .field-icon,
.field-wrapper:has(textarea:focus) .field-icon {
    color: var(--primary-color);
}

/* Error state */
.field-wrapper:has(input.error) input,
.field-wrapper:has(textarea.error) textarea {
    border-color: #e74c3c;
    background: #fff8f8;
    box-shadow: 0 0 0 4px rgba(231, 76, 60, 0.10);
}

.field-wrapper:has(input.error) .field-icon,
.field-wrapper:has(textarea.error) .field-icon {
    color: #e74c3c;
}

.field-wrapper:has(input.error) input + label,
.field-wrapper:has(textarea.error) textarea + label {
    color: #e74c3c;
}

/* Success state */
.field-wrapper:has(input.success) input {
    border-color: #27ae60;
    background: #f8fff9;
    box-shadow: 0 0 0 4px rgba(39, 174, 96, 0.10);
}

.field-wrapper:has(input.success) .field-icon {
    color: #27ae60;
}

/* Error message */
.contact-form .error-message {
    color: #e74c3c;
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 6px;
    padding-left: 4px;
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Character counter */
.char-counter {
    text-align: right;
    font-size: 0.72rem;
    color: #b0a8a0;
    font-weight: 600;
    margin-top: 6px;
    transition: color 0.3s;
}

.char-counter.warning {
    color: #e67e22;
}

.char-counter.danger {
    color: #e74c3c;
}

.btn {
    background: var(--primary-color);
    color: var(--white);
    padding: 15px 30px;
    border: 2px solid var(--primary-color);
    text-transform: uppercase;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    display: inline-block;
    width: fit-content;
    text-decoration: none;
}

.btn:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
}

/* Submit button — full width premium */
.btn-submit {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 17px 30px;
    border-radius: 12px;
    font-size: 0.9rem;
    letter-spacing: 0.8px;
    margin-top: 4px;
    position: relative;
    overflow: hidden;
}

.btn-submit::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.12), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

.btn-submit:hover::before {
    opacity: 1;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(255, 176, 59, 0.38);
}

.btn-submit:active {
    transform: translateY(0);
}

.btn-icon {
    font-size: 0.95rem;
    transition: transform 0.3s ease;
}

.btn-submit:hover .btn-icon {
    transform: translateX(3px) rotate(-15deg);
}

.toast-container {
    position: fixed;
    top: 90px;
    right: 20px;
    z-index: 3001;
    display: flex;
    flex-direction: column;
    gap: 12px;
    pointer-events: none;
}

.toast {
    min-width: 280px;
    max-width: 360px;
    padding: 16px 18px;
    border-radius: 14px;
    color: #ffffff;
    background: rgba(0, 0, 0, 0.9);
    box-shadow: 0 16px 35px rgba(0, 0, 0, 0.22);
    pointer-events: auto;
    animation: toastIn 0.35s ease forwards;
}

.toast.success {
    background: #25d366;
}

.toast.error {
    background: #ff5555;
}

.toast-title {
    font-weight: 700;
    margin-bottom: 4px;
}

.toast-message {
    font-size: 0.95rem;
    line-height: 1.4;
}

.toast.fade-out {
    animation: toastOut 0.8s ease forwards;
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes toastOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-10px);
    }
}

/* Footer */
footer {
    background: var(--secondary-color);
    color: var(--white);
    position: relative;
}

.footer-bottom {
    padding: 20px 0;
    text-align: center;
    background: #222;
}

/* WhatsApp */
.whatsapp-widget {
    position: fixed;
    right: 28px;
    bottom: 28px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 14px;
}

.whatsapp-checkbox {
    display: none;
}

.whatsapp-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(12px);
    transition: all 0.3s ease;
}

.whatsapp-checkbox:checked ~ .whatsapp-options {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

.whatsapp-option {
    width: 235px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 13px 15px;
    border-radius: 14px;
    background: #ffffff;
    color: #111111;
    text-decoration: none;
    box-shadow: 0 16px 35px rgba(0, 0, 0, 0.18);
    border: 1px solid rgba(37, 211, 102, 0.18);
    transition: all 0.3s ease;
}

.whatsapp-option:hover {
    transform: translateY(-3px);
    background: #f7fff9;
    border-color: rgba(37, 211, 102, 0.45);
}

.whatsapp-option i {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: #25d366;
    color: #ffffff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.45rem;
    flex-shrink: 0;
}

.whatsapp-option strong {
    display: block;
    font-size: 0.84rem;
    font-weight: 800;
    text-transform: uppercase;
    margin-bottom: 2px;
}

.whatsapp-option span {
    display: block;
    font-size: 0.82rem;
    color: var(--text-light);
    font-weight: 600;
}

.whatsapp-main {
    position: relative;
    width: 54px;
    height: 54px;
    border: none;
    border-radius: 50%;
    background: #25d366;
    color: #ffffff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 14px 30px rgba(37, 211, 102, 0.32);
    transition: all 0.3s ease;
}

.whatsapp-main:hover {
    background: #1ebe5d;
    transform: translateY(-3px);
    box-shadow: 0 18px 38px rgba(37, 211, 102, 0.42);
}

.whatsapp-main i {
    font-size: 1.8rem;
}

.whatsapp-main::before {
    content: "";
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    border: 2px solid rgba(37, 211, 102, 0.28);
    animation: whatsappPulse 1.8s infinite;
    pointer-events: none;
}

@keyframes whatsappPulse {
    0% {
        transform: scale(0.92);
        opacity: 0.8;
    }

    70% {
        transform: scale(1.18);
        opacity: 0;
    }

    100% {
        transform: scale(1.18);
        opacity: 0;
    }
}

.mobile-menu-btn {
    display: none;
}

/* Responsive */
@media (max-width: 1200px) {
    header {
        grid-template-columns: auto 1fr auto;
        gap: 20px;
        padding: 0 20px;
    }

    nav ul {
        gap: 20px;
    }

    .header-cta {
        padding: 0 18px;
        font-size: 0.76rem;
    }
}

@media (max-width: 992px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 3rem;
    }

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

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

    header {
        display: flex;
        justify-content: space-between;
        padding: 0 20px;
    }

    .header-center {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: rgba(0, 0, 0, 0.98);
        display: flex;
        align-items: center;
        justify-content: center;
        transition: right 0.4s cubic-bezier(0.175, 0.885, 0.32, 1);
        z-index: 999;
    }

    .header-center.active {
        right: 0;
    }

    nav ul {
        flex-direction: column;
        gap: 35px;
    }

    nav ul li a {
        font-size: 1.5rem;
    }

    .mobile-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        background: transparent;
        border: none;
        color: #f0f0f0; /* Branca/Cinza clara */
        font-size: 1.8rem;
        cursor: pointer;
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        margin: 0;
        z-index: 1001;
        transition: opacity 0.3s ease;
    }
    
    .mobile-menu-btn:active {
        opacity: 0.7;
    }
}

@media (max-width: 700px) {
    .about-stats,
    .mvv-cards {
        grid-template-columns: 1fr;
        max-width: 100%;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 24px 20px;
    }

    .card {
        min-height: auto;
    }

    .card h3 {
        min-height: auto;
    }

    .card p {
        max-width: 100%;
    }

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

    .project-item {
        height: 280px;
    }

    .contact-info {
        text-align: center;
    }

    .contact-info h2::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .contact-list {
        align-items: center;
    }
}

@media (max-width: 600px) {
    header {
        height: 75px;
    }

    header.scrolled {
        height: 75px;
    }

    .logo {
        width: 230px;
    }

    .logo img {
        height: 46px;
    }

    header.scrolled .logo img {
        height: 46px;
    }

    .hero {
        padding-top: 75px;
    }

    .hero h1 {
        font-size: 2.3rem;
    }

    .section-content {
        padding: 95px 0 50px;
    }

    h2 {
        font-size: 2.1rem;
    }

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

    .whatsapp-widget {
        right: 18px;
        bottom: 18px;
    }

    .whatsapp-main {
        width: 50px;
        height: 50px;
    }

    .whatsapp-main i {
        font-size: 1.65rem;
    }

    .whatsapp-option {
        width: 220px;
    }

    .project-lightbox {
        padding: 16px;
    }

    .project-lightbox-content {
        width: 96vw;
        border-radius: 14px;
    }

    .project-lightbox img {
        max-height: 74vh;
    }

    .project-lightbox-caption {
        font-size: 0.78rem;
        padding: 14px 16px;
    }

    .project-lightbox-close {
        width: 38px;
        height: 38px;
        font-size: 1.2rem;
    }

    .header-cta {
        min-height: 42px;
        width: 42px;
        padding: 0;
        border-radius: 50%;
    }

    .header-cta .cta-text {
        display: none;
    }

    .header-cta i {
        margin: 0;
        font-size: 1.2rem;
    }

    .footer-bottom {
        padding: 15px 0;
    }

    .footer-bottom p {
        font-size: 0.75rem;
        max-width: 90%;
        margin: 0 auto;
    }

    .section-content {
        padding: 80px 0 30px;
    }

    .contact {
        min-height: auto;
    }
}

/* Scroll Animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s cubic-bezier(0.175, 0.885, 0.32, 1.275), transform 0.7s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    will-change: opacity, transform;
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }
.delay-400 { transition-delay: 0.4s; }
.delay-500 { transition-delay: 0.5s; }
.delay-600 { transition-delay: 0.6s; }