/* =============================================
   VRC Serviços - Main Stylesheet
   Telecomunicações & Engenharia
   ============================================= */

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

    --navy: #0a1628;
    --navy-light: #0f2040;
    --dark: #050e1a;

    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-500: #64748b;
    --gray-700: #334155;
    --gray-900: #0f172a;

    --white: #ffffff;
    --font-main: 'Inter', sans-serif;
    --font-display: 'Outfit', sans-serif;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.15), 0 10px 10px -5px rgba(0,0,0,0.04);
    --shadow-blue: 0 8px 32px rgba(37, 99, 235, 0.35);

    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
}

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

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

body {
    font-family: var(--font-main);
    color: var(--gray-700);
    background: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

ul { list-style: none; }

/* ---- Utility ---- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 5rem 0;
    position: relative;
}

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

.gradient-text-light {
    background: linear-gradient(135deg, #93c5fd, #60a5fa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 2rem;
    border-radius: 50px;
    font-family: var(--font-main);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--blue-500), var(--blue-700));
    color: var(--white);
    box-shadow: var(--shadow-blue);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--blue-600), var(--blue-800));
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(37, 99, 235, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.6);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.15);
    border-color: var(--white);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* =============================================
   NAVBAR
   ============================================= */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 22, 40, 0.97);
    backdrop-filter: blur(20px);
    padding: 0.7rem 0;
    box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo img {
    height: 72px;
    width: auto;
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.4));
    transition: var(--transition);
}

.nav-logo:hover img {
    transform: scale(1.03);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-link {
    color: rgba(255,255,255,0.9);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 1.1rem;
    border-radius: 50px;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link:not(.nav-cta):hover,
.nav-link.active {
    color: var(--white);
    background: rgba(255,255,255,0.1);
}

.nav-cta {
    background: linear-gradient(135deg, var(--blue-500), var(--blue-700));
    color: var(--white) !important;
    padding: 0.5rem 1.4rem;
    box-shadow: var(--shadow-blue);
}

.nav-cta:hover {
    background: linear-gradient(135deg, var(--blue-600), var(--blue-800));
    transform: translateY(-1px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.5);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

/* =============================================
   HERO SECTION
   ============================================= */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

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

.hero-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
    transform: scale(1.05);
    animation: heroZoom 20s ease-in-out infinite alternate;
}

.hero-slide.active {
    opacity: 1;
}

@keyframes heroZoom {
    from { transform: scale(1); }
    to { transform: scale(1.08); }
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(10, 22, 40, 0.92) 0%,
        rgba(15, 32, 64, 0.80) 50%,
        rgba(30, 64, 175, 0.55) 100%
    );
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 8rem 1.5rem 5rem;
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(59, 130, 246, 0.2);
    border: 1px solid rgba(59, 130, 246, 0.4);
    color: var(--blue-300);
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(10px);
    animation: fadeInDown 0.8s ease both;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    animation: fadeInDown 0.8s 0.1s ease both;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: rgba(255,255,255,0.8);
    margin-bottom: 2.5rem;
    line-height: 1.7;
    animation: fadeInDown 0.8s 0.2s ease both;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
    animation: fadeInDown 0.8s 0.3s ease both;
}

.hero-stats {
    display: flex;
    gap: 2.5rem;
    animation: fadeInDown 0.8s 0.4s ease both;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
}

.stat-label {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.6);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-dot {
    width: 14px;
    height: 14px;
    background: var(--blue-400);
    border-radius: 50%;
    animation: scrollBounce 1.8s ease-in-out infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(10px); opacity: 0.5; }
}

/* =============================================
   SECTION HEADERS
   ============================================= */
.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-tag {
    display: inline-block;
    background: var(--blue-50);
    color: var(--blue-600);
    padding: 0.35rem 1rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 1rem;
    border: 1px solid var(--blue-200);
}

.section-header.light .section-tag {
    background: rgba(59, 130, 246, 0.15);
    color: var(--blue-300);
    border-color: rgba(59, 130, 246, 0.3);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section-header.light .section-title {
    color: var(--white);
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

.section-header.light .section-subtitle {
    color: rgba(255,255,255,0.7);
}

/* =============================================
   EMPRESA SECTION
   ============================================= */
.empresa {
    background: var(--gray-50);
}

.empresa-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.empresa-text p {
    color: var(--gray-700);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.empresa-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 1.5rem 0;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: var(--white);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.feature-item:hover {
    border-color: var(--blue-200);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.feature-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--blue-500), var(--blue-700));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.feature-item h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.2rem;
}

.feature-item p {
    font-size: 0.85rem;
    color: var(--gray-500);
    margin: 0;
}

.operadoras {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

.tag-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.5rem;
}

.tag {
    background: var(--blue-50);
    color: var(--blue-700);
    border: 1px solid var(--blue-200);
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
}

.empresa-gallery {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.gallery-main {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    cursor: zoom-in;
}

.gallery-main img {
    width: 100%;
    height: 350px;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-main:hover img {
    transform: scale(1.04);
}

/* Zoom overlay hint */
.gallery-main::after {
    content: '\f00e';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 36px;
    height: 36px;
    background: rgba(10, 22, 40, 0.75);
    backdrop-filter: blur(8px);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    opacity: 0;
    transform: scale(0.8);
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.2);
    line-height: 36px;
    text-align: center;
}

.gallery-main:hover::after {
    opacity: 1;
    transform: scale(1);
}

.gallery-badge {
    position: absolute;
    bottom: 1.2rem;
    left: 1.2rem;
    background: rgba(10, 22, 40, 0.85);
    backdrop-filter: blur(10px);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    border: 1px solid rgba(255,255,255,0.1);
}

.gallery-badge i { color: var(--blue-400); }

.gallery-thumbs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.gallery-thumbs img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: zoom-in;
}

.gallery-thumbs img:hover {
    transform: scale(1.04);
    box-shadow: var(--shadow-lg);
}

/* =============================================
   ATUAÇÃO SECTION
   ============================================= */
.atuacao {
    background: var(--navy);
    overflow: hidden;
}

.atuacao-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 10% 20%, rgba(37, 99, 235, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(29, 78, 216, 0.10) 0%, transparent 50%);
    pointer-events: none;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 4rem;
}

.service-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    padding: 2rem 1.75rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--blue-500), var(--blue-400));
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover {
    background: rgba(255,255,255,0.07);
    border-color: rgba(59, 130, 246, 0.3);
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.service-card:hover::before {
    opacity: 1;
}

.service-icon-wrap {
    margin-bottom: 1.25rem;
}

.service-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(37, 99, 235, 0.3));
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blue-400);
    font-size: 1.4rem;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: linear-gradient(135deg, var(--blue-500), var(--blue-700));
    color: var(--white);
    box-shadow: var(--shadow-blue);
}

.service-card h3 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 0.75rem;
}

.service-card p {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.service-list {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.service-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.7);
}

.service-list li i {
    color: var(--blue-400);
    font-size: 0.7rem;
    flex-shrink: 0;
}

/* Gallery Strip */
.gallery-strip {
    overflow: hidden;
    border-radius: var(--radius-lg);
    mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
    -webkit-mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}

.strip-track {
    display: flex;
    gap: 1rem;
    animation: stripScroll 60s linear infinite;
    width: max-content;
}

.strip-track:hover {
    animation-play-state: paused;
}

@keyframes stripScroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.strip-item {
    flex-shrink: 0;
    width: 220px;
    height: 150px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.1);
    cursor: zoom-in;
    position: relative;
}

.strip-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.strip-item:hover img {
    transform: scale(1.08);
}

.strip-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(37, 99, 235, 0.2);
    opacity: 0;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.strip-item:hover::after {
    opacity: 1;
}

/* =============================================
   ORÇAMENTO / CONTATO
   ============================================= */
.orcamento {
    background: var(--white);
}

.orcamento-grid {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 3rem;
    align-items: start;
}

.contact-card {
    background: var(--navy);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    box-shadow: var(--shadow-xl);
    position: sticky;
    top: 6rem;
}

.contact-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.contact-logo {
    width: 90px;
    height: 90px;
    object-fit: contain;
    border-radius: var(--radius-md);
    background: rgba(255,255,255,0.1);
    padding: 0.5rem;
}

.contact-header h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--white);
}

.contact-header p {
    font-size: 0.85rem;
    color: var(--blue-300);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.85rem 1rem;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.contact-item:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.3);
    transform: translateX(4px);
}

.contact-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.contact-icon.whatsapp { background: #25d366; color: white; }
.contact-icon.phone { background: var(--blue-600); color: white; }
.contact-icon.email { background: var(--blue-700); color: white; }
.contact-icon.site { background: var(--blue-800); color: white; }

.contact-label {
    display: block;
    font-size: 0.75rem;
    color: rgba(255,255,255,0.5);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.contact-value {
    display: block;
    font-size: 0.9rem;
    color: var(--white);
    font-weight: 500;
}

.contact-person {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.85rem 1rem;
    background: rgba(59, 130, 246, 0.1);
    border-radius: var(--radius-md);
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.contact-person i { color: var(--blue-400); }
.contact-person strong { color: var(--white); }

/* Quote Form */
.quote-form-wrap {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
}

.quote-form h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1.75rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

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

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.4rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-family: var(--font-main);
    font-size: 0.95rem;
    color: var(--gray-900);
    background: var(--gray-50);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--blue-500);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.9rem center;
    padding-right: 2.5rem;
}

.form-note {
    text-align: center;
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-top: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
    background: var(--dark);
    color: rgba(255,255,255,0.7);
    padding: 4rem 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr 1.5fr;
    gap: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-logo {
    height: 72px;
    width: auto;
    object-fit: contain;
    margin-bottom: 1rem;
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.footer-social {
    display: flex;
    gap: 0.75rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.7);
    font-size: 1.1rem;
    transition: var(--transition);
}

.footer-social a:hover {
    background: #25d366;
    border-color: #25d366;
    color: white;
    transform: translateY(-3px);
}

.footer-links h4,
.footer-services h4,
.footer-contact h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1.25rem;
}

.footer-links ul,
.footer-services ul,
.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.footer-links li a,
.footer-services li a {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
    transition: var(--transition-fast);
}

.footer-links li a:hover,
.footer-services li a:hover {
    color: var(--blue-400);
    padding-left: 4px;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
}

.footer-contact li i {
    color: var(--blue-400);
    width: 16px;
    font-size: 0.9rem;
}

.footer-contact li a {
    color: rgba(255,255,255,0.6);
    transition: var(--transition-fast);
}

.footer-contact li a:hover {
    color: var(--blue-400);
}

.footer-bottom {
    padding: 1.5rem 0;
}

.footer-bottom .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.4);
}

/* =============================================
   WHATSAPP FLOAT & BACK TO TOP
   ============================================= */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    background: #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.8rem;
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.5);
    z-index: 999;
    transition: var(--transition);
    animation: waPulse 3s ease-in-out infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1) translateY(-3px);
    box-shadow: 0 15px 40px rgba(37, 211, 102, 0.6);
    animation: none;
}

.whatsapp-tooltip {
    position: absolute;
    right: calc(100% + 0.75rem);
    background: var(--gray-900);
    color: white;
    padding: 0.4rem 0.85rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    transform: translateX(8px);
    transition: var(--transition);
    pointer-events: none;
}

.whatsapp-tooltip::after {
    content: '';
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-left-color: var(--gray-900);
}

.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
    transform: translateX(0);
}

@keyframes waPulse {
    0%, 100% { box-shadow: 0 8px 25px rgba(37, 211, 102, 0.5); }
    50% { box-shadow: 0 8px 40px rgba(37, 211, 102, 0.7), 0 0 0 12px rgba(37, 211, 102, 0.1); }
}

.back-to-top {
    position: fixed;
    bottom: 5.5rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    background: var(--blue-600);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.95rem;
    z-index: 998;
    transition: var(--transition);
    opacity: 0;
    transform: translateY(10px);
    box-shadow: var(--shadow-blue);
}

.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--blue-700);
    transform: translateY(-3px);
}

/* =============================================
   ANIMATIONS
   ============================================= */
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
    .empresa-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

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

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

    .contact-card {
        position: static;
    }

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

@media (max-width: 768px) {
    .nav-toggle { display: flex; }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 280px;
        background: var(--navy);
        flex-direction: column;
        padding: 5rem 2rem 2rem;
        gap: 0.5rem;
        transition: right 0.3s ease;
        z-index: 999;
        box-shadow: -10px 0 30px rgba(0,0,0,0.4);
    }

    .nav-menu.open { right: 0; }

    .nav-link {
        width: 100%;
        padding: 0.85rem 1.25rem;
        border-radius: var(--radius-md);
    }

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

    .hero-stats {
        gap: 1.5rem;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .quote-form-wrap {
        padding: 1.75rem;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .hero-stats {
        gap: 1rem;
    }

    .stat-number { font-size: 1.5rem; }

    .gallery-thumbs {
        grid-template-columns: 1fr;
    }

    .whatsapp-float {
        bottom: 1.25rem;
        right: 1.25rem;
        width: 54px;
        height: 54px;
        font-size: 1.6rem;
    }

    .back-to-top {
        bottom: 4.5rem;
        right: 1.25rem;
    }
}

/* =============================================
   LIGHTBOX
   ============================================= */
.lightbox-overlay {
    position: fixed;
    inset: 0;
    background: rgba(5, 14, 26, 0.97);
    backdrop-filter: blur(16px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
}

.lightbox-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.lightbox-inner {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    padding: 3.5rem 4rem;
}

/* Image wrapper */
.lightbox-img-wrap {
    position: relative;
    max-width: 90vw;
    max-height: 85vh;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.8);
    transform: scale(0.92);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.lightbox-overlay.active .lightbox-img-wrap {
    transform: scale(1);
}

.lightbox-img-wrap img {
    display: block;
    max-width: 90vw;
    max-height: 85vh;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-lg);
    user-select: none;
}

/* Close button */
.lightbox-close {
    position: fixed;
    top: 1.25rem;
    right: 1.25rem;
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: var(--white);
    font-size: 1.3rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 10001;
    backdrop-filter: blur(8px);
}

.lightbox-close:hover {
    background: rgba(239, 68, 68, 0.8);
    border-color: transparent;
    transform: rotate(90deg) scale(1.1);
}

/* Navigation arrows */
.lightbox-nav {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    width: 52px;
    height: 52px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: var(--white);
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 10001;
    backdrop-filter: blur(8px);
    user-select: none;
}

.lightbox-nav:hover {
    background: var(--blue-600);
    border-color: transparent;
    transform: translateY(-50%) scale(1.1);
}

.lightbox-prev { left: 1.25rem; }
.lightbox-next { right: 1.25rem; }

.lightbox-prev:hover { transform: translateY(-50%) scale(1.1) translateX(-2px); }
.lightbox-next:hover { transform: translateY(-50%) scale(1.1) translateX(2px); }

/* Counter */
.lightbox-counter {
    position: fixed;
    bottom: 1.25rem;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    color: rgba(255, 255, 255, 0.85);
    padding: 0.4rem 1.1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    font-family: var(--font-main);
    letter-spacing: 0.05em;
    z-index: 10001;
    white-space: nowrap;
}

/* Thumbnail dots strip at bottom */
.lightbox-dots {
    position: fixed;
    bottom: 3.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 6px;
    z-index: 10001;
    max-width: 90vw;
    overflow: hidden;
}

.lightbox-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transition: var(--transition-fast);
    cursor: pointer;
    flex-shrink: 0;
}

.lightbox-dot.active {
    background: var(--blue-400);
    width: 22px;
    border-radius: 4px;
}

/* Loading spinner */
.lightbox-spinner {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-spinner::after {
    content: '';
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.2);
    border-top-color: var(--blue-400);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Slide fade animation */
.lightbox-img-wrap.changing {
    opacity: 0;
    transition: opacity 0.2s ease;
}

/* Touch swipe hint on mobile */
@media (max-width: 768px) {
    .lightbox-inner {
        padding: 3rem 0.5rem;
    }

    .lightbox-nav {
        width: 44px;
        height: 44px;
        font-size: 1rem;
    }

    .lightbox-prev { left: 0.5rem; }
    .lightbox-next { right: 0.5rem; }

    .lightbox-img-wrap img {
        max-width: 95vw;
        max-height: 80vh;
    }
}