/* ============================================
   MASC Projetos Metálicos - Site CSS
   Design: Industrial Moderno
   ============================================ */

:root {
    --dark:      #0a0d14;
    --dark-2:    #111827;
    --dark-3:    #1c2333;
    --dark-4:    #253047;
    --accent:    #AC3235;
    --accent-h:  #8B2229;
    --accent-l:  #f5c0c5;
    --steel:     #64748b;
    --muted:     #9ca3af;
    --light:     #f1f5f9;
    --border:    #1f2d45;
    --text:      #e2e8f0;
    --font-head: 'Oswald', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    --radius:    8px;
    --shadow:    0 4px 24px rgba(0,0,0,.45);
    --shadow-lg: 0 8px 48px rgba(0,0,0,.55);
    --transition: .3s ease;
}

/* ===== RESET / BASE ===== */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    background: var(--dark);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-head);
    font-weight: 600;
    letter-spacing: .02em;
}

a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-h); }

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

/* ===== UTILITIES ===== */
.text-accent { color: var(--accent) !important; }

.btn-accent {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    font-family: var(--font-head);
    font-weight: 500;
    letter-spacing: .05em;
    padding: .65rem 1.75rem;
    border-radius: var(--radius);
    transition: all var(--transition);
}
.btn-accent:hover, .btn-accent:focus {
    background: var(--accent-h);
    border-color: var(--accent-h);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(172,50,53,.35);
}

.section-label {
    display: flex;
    align-items: center;
    gap: .75rem;
    font-family: var(--font-head);
    font-size: .75rem;
    font-weight: 500;
    letter-spacing: .2em;
    color: var(--accent);
    text-transform: uppercase;
    margin-bottom: .75rem;
}
.label-line {
    flex: 1;
    max-width: 40px;
    height: 2px;
    background: var(--accent);
    display: block;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    color: var(--light);
    line-height: 1.2;
    margin-bottom: 1rem;
}

.section-subtitle {
    color: var(--muted);
    font-size: 1.05rem;
    max-width: 560px;
    margin: 0 auto;
}

.section-text {
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.8;
}

/* ===== NAVBAR ===== */
#navbar {
    background: transparent;
    transition: background var(--transition), box-shadow var(--transition);
    padding: 1.25rem 0;
}

#navbar.scrolled {
    background: rgba(10,13,20,.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 2px 24px rgba(0,0,0,.5);
    padding: .75rem 0;
}

.navbar-logo {
    height: 48px;
    width: auto;
    display: block;
    transition: opacity var(--transition);
}
.navbar-logo:hover { opacity: .85; }

#navbar.scrolled .navbar-logo { height: 40px; }

.brand-masc {
    font-family: var(--font-head);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: .08em;
}

.brand-sub {
    font-family: var(--font-head);
    font-size: .75rem;
    font-weight: 300;
    color: var(--muted);
    letter-spacing: .12em;
    text-transform: uppercase;
    display: block;
    line-height: 1;
}

.navbar-nav .nav-link {
    font-family: var(--font-head);
    font-weight: 400;
    letter-spacing: .08em;
    font-size: .95rem;
    color: rgba(255,255,255,.8) !important;
    padding: .5rem 1rem;
    transition: color var(--transition);
}

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

.nav-cta {
    background: var(--accent);
    color: #fff !important;
    border-radius: var(--radius);
    padding: .45rem 1.25rem !important;
    margin-left: .5rem;
}
.nav-cta:hover { background: var(--accent-h); }

/* ===== HERO ===== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background:
        linear-gradient(135deg, #0a0d14 0%, #111827 40%, #0f1929 100%);
}

.hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 40px,
            rgba(172,50,53,.03) 40px,
            rgba(172,50,53,.03) 41px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 40px,
            rgba(172,50,53,.03) 40px,
            rgba(172,50,53,.03) 41px
        );
    z-index: 0;
}

.hero-section::after {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(172,50,53,.12) 0%, transparent 70%);
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(10,13,20,.95) 50%, rgba(10,13,20,.6));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: 7rem 0 5rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    background: rgba(172,50,53,.12);
    border: 1px solid rgba(172,50,53,.3);
    color: var(--accent);
    font-family: var(--font-head);
    font-size: .8rem;
    letter-spacing: .15em;
    text-transform: uppercase;
    padding: .4rem 1rem;
    border-radius: 2rem;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: clamp(2.5rem, 7vw, 5rem);
    font-weight: 700;
    line-height: 1.1;
    color: #fff;
    margin-bottom: 1.5rem;
    letter-spacing: -.01em;
}

.hero-accent {
    color: var(--accent);
    display: block;
}

.hero-sub {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: rgba(255,255,255,.7);
    max-width: 500px;
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.hero-actions .btn { font-size: 1rem; }

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

.hero-scroll a {
    color: rgba(255,255,255,.4);
    font-size: 1.25rem;
    transition: color var(--transition);
}
.hero-scroll a:hover { color: var(--accent); }

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* ===== STATS BAR ===== */
.stats-bar {
    background: var(--dark-3);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 2.5rem 0;
}

.stat-item {
    padding: 1rem;
    border-right: 1px solid var(--border);
}
.stat-item:last-child { border-right: none; }

.stat-number {
    font-family: var(--font-head);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
}
.stat-number span { font-size: 1.5rem; }

.stat-label {
    font-size: .8rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: .1em;
    margin-top: .25rem;
}

/* ===== A EMPRESA ===== */
.section-empresa {
    padding: 6rem 0;
    background: var(--dark-2);
}


.profissional-card {
    background: var(--dark-3);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-top: 1.5rem;
}

.prof-name {
    font-family: var(--font-head);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--light);
    letter-spacing: .03em;
}

.prof-title {
    color: var(--accent);
    font-size: .875rem;
    margin-top: .25rem;
}

.prof-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.prof-list li {
    padding: .35rem 0;
    color: var(--muted);
    font-size: .9rem;
    border-bottom: 1px solid rgba(255,255,255,.04);
}
.prof-list li:last-child { border-bottom: none; }

/* ===== ESTRUTURA METÁLICA ===== */
.section-estrutura {
    padding: 6rem 0;
    background: var(--dark);
    position: relative;
}

.section-estrutura::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.vantagem-card {
    background: var(--dark-3);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    height: 100%;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.vantagem-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--accent);
    transform: scaleY(0);
    transition: transform var(--transition);
}

.vantagem-card:hover {
    border-color: rgba(172,50,53,.35);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,.4);
}

.vantagem-card:hover::before { transform: scaleY(1); }

.vantagem-icon {
    width: 56px;
    height: 56px;
    background: rgba(172,50,53,.1);
    border: 1px solid rgba(172,50,53,.25);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    color: var(--accent);
    margin-bottom: 1.25rem;
    transition: all var(--transition);
}

.vantagem-card:hover .vantagem-icon {
    background: rgba(172,50,53,.2);
    box-shadow: 0 0 20px rgba(172,50,53,.2);
}

.vantagem-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--light);
    margin-bottom: .75rem;
    letter-spacing: .02em;
}

.vantagem-text {
    color: var(--muted);
    font-size: .9rem;
    line-height: 1.7;
    margin: 0;
}

/* ===== PORTFOLIO ===== */
.section-portfolio {
    padding: 6rem 0 0;
    background: var(--dark-2);
}

.section-portfolio .container { padding-bottom: 0; }

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 4px;
    margin-top: 3rem;
}

@media (min-width: 992px) {
    .portfolio-grid {
        grid-template-columns: repeat(6, 1fr);
    }
}

@media (min-width: 768px) and (max-width: 991px) {
    .portfolio-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.portfolio-item {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    background: var(--dark-3);
    cursor: pointer;
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
    display: block;
}

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

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: rgba(172,50,53,.0);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition);
    opacity: 0;
}

.portfolio-item:hover .portfolio-overlay {
    background: rgba(10,13,20,.65);
    opacity: 1;
}

.portfolio-zoom {
    background: var(--accent);
    border: none;
    color: #fff;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition);
    transform: scale(.7);
}

.portfolio-item:hover .portfolio-zoom { transform: scale(1); }
.portfolio-zoom:hover { background: var(--accent-h); transform: scale(1.1) !important; }

.portfolio-item.img-error {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--dark-3);
    border: 1px solid var(--border);
    min-height: 180px;
}

.portfolio-item.img-error::after {
    content: '\f03e';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 2rem;
    color: var(--border);
}

/* ===== LIGHTBOX ===== */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.92);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    backdrop-filter: blur(4px);
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    text-align: center;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

.lightbox-caption {
    color: var(--muted);
    font-size: .85rem;
    margin-top: .75rem;
    font-family: var(--font-head);
    letter-spacing: .05em;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: fixed;
    background: rgba(255,255,255,.1);
    border: 1px solid rgba(255,255,255,.2);
    color: #fff;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    z-index: 10000;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    background: var(--accent);
    border-color: var(--accent);
}

.lightbox-close { top: 1.5rem; right: 1.5rem; }
.lightbox-prev { left: 1.5rem; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 1.5rem; top: 50%; transform: translateY(-50%); }

/* ===== PARCEIROS ===== */
.section-parceiros {
    padding: 6rem 0;
    background: var(--dark);
}

.parceiro-card {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    background: var(--dark-3);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.75rem;
    color: var(--text);
    text-decoration: none;
    transition: all var(--transition);
    position: relative;
}

.parceiro-card:hover {
    border-color: rgba(172,50,53,.4);
    color: var(--text);
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(0,0,0,.4);
}

.parceiro-icon {
    width: 90px;
    height: 52px;
    background: #fff;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
    padding: 4px;
}

.parceiro-img {
    max-width: 100%;
    max-height: 44px;
    width: auto;
    height: auto;
    object-fit: contain;
    display: block;
}

.parceiro-name {
    font-family: var(--font-head);
    font-size: 1rem;
    font-weight: 600;
    color: var(--light);
    letter-spacing: .03em;
}

.parceiro-url {
    font-size: .8rem;
    color: var(--muted);
    margin-top: .2rem;
}

.parceiro-ext {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: .75rem;
    color: var(--muted);
    opacity: 0;
    transition: opacity var(--transition);
}
.parceiro-card:hover .parceiro-ext { opacity: 1; }

/* ===== CONTATO ===== */
.section-contato {
    padding: 6rem 0;
    background: var(--dark-2);
}

.contato-info-card {
    background: var(--dark-3);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    height: 100%;
}

.contato-info-item {
    display: flex;
    gap: 1rem;
    padding: 1.25rem 0;
    border-bottom: 1px solid rgba(255,255,255,.05);
}
.contato-info-item:last-child { border-bottom: none; padding-bottom: 0; }
.contato-info-item:first-child { padding-top: 0; }

.contato-info-icon {
    width: 40px;
    height: 40px;
    background: rgba(172,50,53,.1);
    border: 1px solid rgba(172,50,53,.2);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: .9rem;
    flex-shrink: 0;
    margin-top: .15rem;
}

.contato-info-label {
    font-family: var(--font-head);
    font-size: .75rem;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: .3rem;
}

.contato-info-value {
    color: var(--text);
    font-size: .9rem;
    line-height: 1.6;
}

.contato-link { color: var(--text); }
.contato-link:hover { color: var(--accent); }

.contato-form-card {
    background: var(--dark-3);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
}

.form-label {
    font-family: var(--font-head);
    font-size: .8rem;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: .4rem;
}

.form-control {
    background: var(--dark-2);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: var(--radius);
    padding: .7rem 1rem;
    font-size: .95rem;
    transition: all var(--transition);
}

.form-control:focus {
    background: var(--dark-2);
    border-color: var(--accent);
    color: var(--text);
    box-shadow: 0 0 0 3px rgba(172,50,53,.15);
    outline: none;
}

.form-control::placeholder { color: var(--steel); }

textarea.form-control { resize: vertical; min-height: 130px; }

.form-alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    font-size: .9rem;
}

.form-alert.success {
    background: rgba(34,197,94,.1);
    border: 1px solid rgba(34,197,94,.3);
    color: #86efac;
}

.form-alert.error {
    background: rgba(239,68,68,.1);
    border: 1px solid rgba(239,68,68,.3);
    color: #fca5a5;
}

/* ===== WHATSAPP FLUTUANTE ===== */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 9000;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    box-shadow: 0 4px 20px rgba(37,211,102,.45);
    transition: transform var(--transition), box-shadow var(--transition);
    text-decoration: none;
}

.whatsapp-float:hover {
    color: #fff;
    transform: scale(1.12) translateY(-3px);
    box-shadow: 0 8px 32px rgba(37,211,102,.6);
}

.whatsapp-float::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: rgba(37,211,102,.3);
    animation: wa-ping 2s ease-out infinite;
}

@keyframes wa-ping {
    0%   { transform: scale(1); opacity: .8; }
    100% { transform: scale(1.7); opacity: 0; }
}

@media (max-width: 767px) {
    .whatsapp-float { bottom: 1.25rem; right: 1.25rem; width: 52px; height: 52px; font-size: 1.5rem; }
}

/* ===== FOOTER ===== */
.site-footer {
    background: var(--dark);
    border-top: 1px solid var(--border);
    padding: 2rem 0;
}

.social-link {
    width: 36px;
    height: 36px;
    background: var(--dark-3);
    border: 1px solid var(--border);
    border-radius: 50%;
    color: var(--muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: .85rem;
    transition: all var(--transition);
}

.social-link:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    transform: translateY(-2px);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 767px) {
    .stats-bar .stat-item { border-right: none; border-bottom: 1px solid var(--border); }
    .stats-bar .stat-item:last-child { border-bottom: none; }

    .hero-title { font-size: 2.5rem; }
    .hero-actions .btn { display: block; width: 100%; margin: 0 0 .75rem; }

    .empresa-crea { position: static; margin-top: 1rem; }

    .contato-form-card { padding: 1.5rem; }

    .lightbox-prev { left: .5rem; }
    .lightbox-next { right: .5rem; }

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

@media (max-width: 480px) {
    .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== OVERRIDE BOOTSTRAP TEXT-MUTED (tema escuro) ===== */
.text-muted,
.small.text-muted,
small.text-muted {
    color: var(--muted) !important;   /* #9ca3af — visível no fundo escuro */
}

/* Textos secundários dentro de cards escuros */
.empresa-crea .small,
.empresa-crea small,
.contato-info-value small,
.stat-label,
.parceiro-url,
.prof-list li,
.vantagem-text,
.section-text,
.section-subtitle {
    color: #b0bec5;   /* cinza claro harmonioso */
}

/* ===== SCROLL ANIMATIONS ===== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity .6s ease, transform .6s ease;
}

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

.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal-delay-4 { transition-delay: .4s; }
.reveal-delay-5 { transition-delay: .5s; }