/* =========================
   ARCA SMART LAB — base
========================= */

:root{
    /* Brand colors from logo (approx) */
    --brand-red: #F11B2C;
    --brand-red-2: #ff3a4a;

    --bg-0: #0B0C10;
    --bg-1: #10131A;
    --surface: rgba(255,255,255,.06);
    --surface-2: rgba(255,255,255,.085);
    --stroke: rgba(255,255,255,.10);

    --text: #E7E5E6;
    --muted: rgba(231,229,230,.72);

    --shadow: 0 18px 60px rgba(0,0,0,.55);
    --radius: 16px;

    --container: 1180px;
}

*{ box-sizing: border-box; }
html,body{ height: 100%; }
body{
    margin:0;
    font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Apple Color Emoji","Segoe UI Emoji";
    color: var(--text);
    background:
            radial-gradient(900px 500px at 12% 8%, rgba(241,27,44,.22), transparent 55%),
            radial-gradient(700px 420px at 88% 12%, rgba(241,27,44,.14), transparent 55%),
            linear-gradient(180deg, var(--bg-0), var(--bg-1));
    overflow-x: hidden;
}

a{ color: inherit; text-decoration: none; }
img{ max-width: 100%; display:block; }

.container{
    width: min(var(--container), calc(100% - 40px));
    margin-inline: auto;
}

.muted{ color: var(--muted); }
.fine{ font-size: 12px; line-height: 1.4; }

.skip-link{
    position:absolute;
    left:-999px;
    top:10px;
    background: #000;
    color:#fff;
    padding:10px 14px;
    border-radius: 10px;
    z-index: 1000;
}
.skip-link:focus{ left: 14px; }

/* =========================
   Buttons
========================= */
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap: 10px;
    padding: 12px 16px;
    border-radius: 12px;
    border: 1px solid transparent;
    font-weight: 650;
    letter-spacing: .2px;
    transition: transform .12s ease, background .12s ease, border-color .12s ease, box-shadow .12s ease;
    cursor: pointer;
    user-select: none;
}
.btn:active{ transform: translateY(1px); }
.btn-block{ width: 100%; }

.btn-primary{
    background: linear-gradient(135deg, var(--brand-red), var(--brand-red-2));
    box-shadow: 0 10px 26px rgba(241,27,44,.25);
    color: #000;
}
.btn-primary:hover{ box-shadow: 0 14px 34px rgba(241,27,44,.32); }

.btn-ghost{
    background: rgba(255,255,255,.05);
    border-color: rgba(255,255,255,.12);
}
.btn-ghost:hover{
    background: rgba(255,255,255,.075);
    border-color: rgba(255,255,255,.18);
}

/* =========================
   Header
========================= */
.site-header{
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-bar{
    border-bottom: 1px solid rgba(255,255,255,.08);
    background:
            linear-gradient(180deg, rgba(10,11,15,.78), rgba(10,11,15,.60));
    backdrop-filter: blur(14px);
}

.site-header.is-scrolled .header-bar{
    background: linear-gradient(180deg, rgba(10,11,15,.90), rgba(10,11,15,.72));
    border-bottom-color: rgba(241,27,44,.18);
}

.header-inner{
    height: 111px;
    display:flex;
    align-items:center;
    justify-content: space-between;
    gap: 16px;
}

.brand{
    display:flex;
    align-items:center;
    gap: 12px;
    min-width: 210px;
}
.brand-logo{
    height: 92px;
    object-fit: contain;
    filter: drop-shadow(0 10px 20px rgba(0,0,0,.5));
}
.brand-lines{ display:flex; flex-direction: column; line-height: 1.05; }
.brand-title{
    font-weight: 800;
    letter-spacing: .6px;
    font-size: 16px;
}
.brand-subtitle{
    font-weight: 700;
    color: rgba(231,229,230,.82);
    font-size: 12px;
    letter-spacing: 2.4px;
    text-transform: uppercase;
}

.nav{
    display:flex;
    align-items:center;
    gap: 22px;
}
.nav a{
    font-size: 14px;
    color: rgba(231,229,230,.82);
    padding: 10px 10px;
    border-radius: 10px;
    transition: background .12s ease, color .12s ease;
}
.nav a:hover{
    background: rgba(255,255,255,.06);
    color: var(--text);
}

.header-actions{
    display:flex;
    align-items:center;
    gap: 12px;
}
.header-link{
    font-size: 14px;
    color: rgba(231,229,230,.82);
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,.10);
    background: rgba(255,255,255,.03);
}
.header-link:hover{
    border-color: rgba(241,27,44,.22);
}

/* Burger */
.burger{
    width: 44px;
    height: 44px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,.12);
    background: rgba(255,255,255,.04);
    display:none;
    align-items:center;
    justify-content:center;
    gap: 5px;
    flex-direction: column;
}
.burger span{
    width: 18px;
    height: 2px;
    background: rgba(231,229,230,.86);
    border-radius: 99px;
}

/* Mobile nav */
.mobile-nav{
    border-bottom: 1px solid rgba(255,255,255,.08);
    background: rgba(10,11,15,.88);
    backdrop-filter: blur(14px);
}
.mobile-nav-inner{
    padding: 14px 0 18px;
    display:grid;
    gap: 10px;
}
.mobile-nav a{
    padding: 12px 12px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,.10);
    background: rgba(255,255,255,.03);
}
.mobile-cta{
    display:grid;
    gap: 10px;
    margin-top: 8px;
}

/* =========================
   Hero
========================= */
.hero{
    padding: 56px 0 26px;
}
.hero-grid{
    display:grid;
    grid-template-columns: 1.15fr .85fr;
    gap: 26px;
    align-items: start;
}
.kicker{
    display:inline-flex;
    gap: 10px;
    align-items:center;
    font-weight: 700;
    font-size: 12px;
    letter-spacing: 1.8px;
    text-transform: uppercase;
    color: rgba(231,229,230,.72);
}
.hero h1{
    margin: 14px 0 12px;
    font-size: clamp(30px, 3.2vw, 44px);
    line-height: 1.06;
    letter-spacing: -0.6px;
}
.lead{
    margin: 0 0 18px;
    color: rgba(231,229,230,.82);
    font-size: 16px;
    line-height: 1.6;
    max-width: 62ch;
}
.hero-actions{
    display:flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}
.hero-badges{
    display:flex;
    flex-wrap: wrap;
    gap: 10px;
}
.badge{
    font-size: 13px;
    padding: 8px 10px;
    border-radius: 999px;
    border: 1px solid rgba(255,255,255,.12);
    background: rgba(255,255,255,.04);
    cursor: pointer;
}
.badge:hover{
    border: 1px solid rgb(241,27,44,.32);
}
.hero-card .glass-card{
    padding: 18px;
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,.12);
    background: linear-gradient(180deg, rgba(255,255,255,.07), rgba(255,255,255,.04));
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}
.hero-card .glass-card:before{
    content:"";
    position:absolute;
    inset: -40px;
    background: radial-gradient(220px 220px at 20% 0%, rgba(241,27,44,.18), transparent 60%);
    pointer-events:none;
}
.hero-card h3{ margin: 2px 0 6px; font-size: 18px; }
.mini-form{
    display:grid;
    gap: 12px;
    margin-top: 12px;
}
label span{
    display:block;
    font-size: 12px;
    color: rgba(231,229,230,.72);
    margin: 0 0 6px;
}
input, select, textarea{
    width:100%;
    padding: 12px 12px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,.12);
    background: rgba(10,11,15,.55);
    color: var(--text);
    outline: none;
}
input:focus, select:focus, textarea:focus{
    border-color: rgba(241,27,44,.40);
    box-shadow: 0 0 0 4px rgba(241,27,44,.10);
}

/* =========================
   Sections
========================= */
.section{
    padding: 34px 0;
}
.section-head{
    display:grid;
    gap: 8px;
    margin-bottom: 16px;
}
.section h2{
    margin:0;
    font-size: 26px;
    letter-spacing: -0.3px;
}
.cards-grid{
    display:grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

.service-card,
.case-card{
    padding: 16px;
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,.12);
    background: rgba(255,255,255,.04);
    box-shadow: 0 10px 30px rgba(0,0,0,.25);
    transition: transform .12s ease, border-color .12s ease, background .12s ease;
}
.service-card:hover{
    transform: translateY(-2px);
    border-color: rgba(241,27,44,.26);
    background: rgba(255,255,255,.055);
}
.service-card h3, .case-card h3{
    margin: 2px 0 6px;
    font-size: 16px;
}
.service-card p, .case-card p{
    margin:0;
    color: rgba(231,229,230,.78);
    line-height: 1.55;
}

/* Product strip */
.product-strip{
    display:grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 14px;
    padding: 16px;
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,.12);
    background:
            radial-gradient(420px 240px at 10% 0%, rgba(241,27,44,.16), transparent 60%),
            rgba(255,255,255,.04);
}
.row-actions{ display:flex; gap: 12px; margin-top: 12px; flex-wrap: wrap; }

.mock-card{
    border-radius: 14px;
    border: 1px solid rgba(255,255,255,.12);
    background: rgba(10,11,15,.55);
    padding: 14px;
    height: 180px;
    position: relative;
    overflow:hidden;
}
.mock-card:after{
    content:"";
    position:absolute;
    inset: -40px;
    background: radial-gradient(240px 240px at 80% 10%, rgba(241,27,44,.14), transparent 60%);
    pointer-events:none;
}
.mock-line{
    height: 10px;
    border-radius: 999px;
    background: rgba(255,255,255,.10);
    margin-bottom: 10px;
}
.mock-line.w80{ width: 80%; }
.mock-line.w60{ width: 60%; }
.mock-chip{
    display:inline-flex;
    padding: 8px 10px;
    border-radius: 999px;
    border: 1px solid rgba(255,255,255,.12);
    background: rgba(255,255,255,.04);
    margin-right: 8px;
    margin-top: 8px;
    font-size: 13px;
}

/* About */
.about-grid{
    display:grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}
.about-item{
    padding: 16px;
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,.12);
    background: rgba(255,255,255,.04);
}

/* Contact */
.section-contact{
    padding-bottom: 50px;
}
.contact-grid{
    display:grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    align-items: start;
}
.contact-lines{
    display:grid;
    gap: 10px;
    margin-top: 12px;
}
.contact-lines a{
    display:inline-flex;
    padding: 12px 12px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,.12);
    background: rgba(255,255,255,.03);
}
.contact-form{
    padding: 16px;
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,.12);
    background: rgba(255,255,255,.04);
}
.form-grid{
    display:grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.form-grid .full{ grid-column: 1 / -1; }

/* =========================
   Footer
========================= */
.site-footer{
    border-top: 1px solid rgba(255,255,255,.08);
    background: rgba(10,11,15,.80);
    backdrop-filter: blur(14px);
}

.footer-top{
    padding: 26px 0 18px;
    display:grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 18px;
}
.footer-logo-row{
    display:flex;
    gap: 12px;
    align-items:center;
}
.footer-logo{
    width: 44px;
    height: 44px;
    object-fit: contain;
}
.footer-title{
    font-weight: 850;
    letter-spacing: .4px;
}
.footer-cols{
    display:grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}
.footer-col h4{
    margin: 6px 0 10px;
    font-size: 13px;
    letter-spacing: 1.6px;
    text-transform: uppercase;
    color: rgba(231,229,230,.76);
}
.footer-col a, .footer-col span{
    display:block;
    padding: 10px 10px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,.10);
    background: rgba(255,255,255,.03);
    margin-bottom: 10px;
}
.footer-col a:hover{
    border-color: rgba(241,27,44,.24);
}

.footer-bottom{
    padding: 14px 0 18px;
    display:flex;
    align-items:center;
    justify-content: space-between;
    gap: 12px;
    border-top: 1px solid rgba(255,255,255,.08);
}
.footer-legal{
    display:flex;
    gap: 10px;
}
.footer-legal a{
    padding: 8px 10px;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,.10);
    background: rgba(255,255,255,.02);
}

/* =========================
   Responsive
========================= */
@media (max-width: 980px){
    .nav{ display:none; }
    .burger{ display:flex; }

    .hero-grid{ grid-template-columns: 1fr; }
    .cards-grid{ grid-template-columns: 1fr; }
    .about-grid{ grid-template-columns: 1fr; }
    .product-strip{ grid-template-columns: 1fr; }
    .contact-grid{ grid-template-columns: 1fr; }
    .form-grid{ grid-template-columns: 1fr; }

    .footer-top{ grid-template-columns: 1fr; }
    .footer-cols{ grid-template-columns: 1fr; }
	.brand {
		min-width: 77px;
	}
	#head_consult{
		display:none;
	}
}
@media (prefers-reduced-motion: reduce){
    *{ scroll-behavior: auto !important; transition: none !important; }
}

/* ===== Form validation ===== */
.is-invalid{
    border-color: rgba(241,27,44,.75) !important;
    box-shadow: 0 0 0 4px rgba(241,27,44,.14) !important;
}
.is-invalid::placeholder{ color: rgba(241,27,44,.75); }

/* Small tooltip-like error (optional, shows on focus/hover) */
.is-invalid:focus-visible{ outline: none; }
label:has(.is-invalid)::after{
    content: attr(data-error);
}

/* If you want visible text under field, use this: */
.is-invalid + .field-error{ display:block; }
.field-error{
    display:none;
    margin-top: 6px;
    font-size: 12px;
    color: rgba(241,27,44,.9);
}

/* ===== Modal ===== */
.modal-overlay{
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.62);
    display: grid;
    place-items: center;
    padding: 18px;
    z-index: 9999;
    backdrop-filter: blur(8px);
}

.modal-card{
    width: min(520px, 100%);
    border-radius: 18px;
    border: 1px solid rgba(255,255,255,.14);
    background:
            radial-gradient(260px 220px at 15% 0%, rgba(241,27,44,.22), transparent 60%),
            rgba(12,13,18,.92);
    box-shadow: 0 22px 70px rgba(0,0,0,.65);
    padding: 18px 18px 16px;
    text-align: center;
    animation: pop .16s ease-out;
}

@keyframes pop{
    from { transform: translateY(8px) scale(.98); opacity: 0; }
    to   { transform: translateY(0) scale(1); opacity: 1; }
}

.modal-card h3{
    margin: 10px 0 8px;
    font-size: 20px;
    letter-spacing: -0.2px;
}
.modal-card p{
    margin: 0 0 14px;
    line-height: 1.55;
}

.modal-badge{
    width: 54px;
    height: 54px;
    margin: 0 auto;
    border-radius: 16px;
    display:grid;
    place-items:center;
    font-size: 28px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--brand-red), var(--brand-red-2));
    box-shadow: 0 14px 32px rgba(241,27,44,.30);
}

.modal-actions{
    display:flex;
    justify-content:center;
    gap: 10px;
}