:root { --primary: #f97316; --primary-dark: #ea580c; }

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; color: #e5e7eb; background: #111827; line-height: 1.6; }
h1, h2, h3 { font-family: 'Oswald', sans-serif; }
.container { max-width: 1000px; margin: 0 auto; padding: 0 20px; }

nav { background: rgba(0,0,0,.7); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 3px solid var(--primary); padding: 16px 0; position: sticky; top: 0; z-index: 100; }
nav .container { display: flex; align-items: center; justify-content: space-between; }
nav .logo { color: #fff; font-size: 1.3rem; font-weight: 800; text-decoration: none; text-transform: uppercase; letter-spacing: 1px; }
nav .logo img { height: 38px; vertical-align: middle; margin-right: 8px; }
nav .nav-links { display: flex; gap: 24px; }
nav .nav-links a { color: #9ca3af; text-decoration: none; font-weight: 500; transition: color .2s; }
nav .nav-links a:hover { color: var(--primary); }

.hero { position: relative; padding: 120px 0 100px; text-align: center; background: #111827; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background: linear-gradient(rgba(0,0,0,.65),rgba(0,0,0,.75)); z-index: 1; }
.hero .container { position: relative; z-index: 2; }
.hero h1 { font-size: 3rem; font-weight: 900; color: #fff; text-transform: uppercase; letter-spacing: 2px; margin-bottom: 16px; }
.hero h1 span { color: var(--primary); }
.hero p { font-size: 1.15rem; color: #d1d5db; max-width: 540px; margin: 0 auto 32px; }
.btn { display: inline-block; background: var(--primary); color: #fff; padding: 14px 36px; border-radius: 4px; font-weight: 700; text-decoration: none; text-transform: uppercase; letter-spacing: 1px; transition: background .2s, transform .2s; }
.btn:hover { background: var(--primary-dark); transform: translateY(-2px); }

section { padding: 72px 0; }
section:nth-child(even) { background: #1f2937; }
.section-tag { display: inline-block; background: var(--primary); color: #fff; font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 2px; padding: 4px 12px; border-radius: 2px; margin-bottom: 12px; }
h2 { font-size: 2rem; font-weight: 800; color: #fff; margin-bottom: 8px; text-transform: uppercase; letter-spacing: 1px; }
h2::after { content: ''; display: block; width: 40px; height: 3px; background: var(--primary); margin-top: 10px; }

.services-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; margin-top: 32px; }
.service-card { background: #111827; border: 1px solid #374151; border-top: 3px solid var(--primary); padding: 24px 20px; border-radius: 6px; }
.service-card:hover { transform: translateY(-4px); box-shadow: 0 12px 36px rgba(0,0,0,.15); }
.service-card .num { font-size: 2rem; font-weight: 900; color: var(--primary); opacity: .4; line-height: 1; margin-bottom: 8px; }
.service-card h3 { color: #f9fafb; font-size: 1rem; font-weight: 600; }

.o-nas-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.o-nas-inner p { color: #9ca3af; }
.o-nas-photo { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 8px; border: 3px solid var(--primary); }

.contact { background: #0f172a; }
.contact h2 { color: #fff; }
.contact-info { display: flex; flex-direction: column; gap: 14px; margin-top: 24px; font-size: 1.05rem; }
.contact-info p { display: flex; align-items: center; gap: 10px; color: #d1d5db; }
.contact-info a { color: var(--primary); text-decoration: none; font-weight: 600; }
.social-links { margin-top: 24px; display: flex; gap: 12px; }
.social-links a { background: var(--primary); color: #fff; padding: 8px 24px; border-radius: 4px; text-decoration: none; font-weight: 600; transition: background .2s; }
.social-links a:hover { background: var(--primary-dark); }

.map { padding: 0; background:#111827; }
.map iframe { width:100%;height:420px;border:0;display:block;filter:grayscale(40%) brightness(0.85); }

footer { background: #0f172a; border-top: 3px solid var(--primary); color: #6b7280; text-align: center; padding: 28px 0; font-size: .85rem; }
footer strong { color: var(--primary); }

@media (max-width: 640px) {
    .hero h1 { font-size: 2rem; }
    .o-nas-inner { grid-template-columns: 1fr; }
    .services-grid { grid-template-columns: 1fr; }
}

/* ── Modern animations ────────────────────────────── */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(22px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
.hero .container > * { animation: fadeUp .7s ease both; }
.hero .container > *:nth-child(1) { animation-delay: .05s; }
.hero .container > *:nth-child(2) { animation-delay: .15s; }
.hero .container > *:nth-child(3) { animation-delay: .25s; }
.hero .container > *:nth-child(4) { animation-delay: .35s; }
.hero .container > *:nth-child(5) { animation-delay: .45s; }

/* ── Typography quality ───────────────────────────── */
html { -webkit-text-size-adjust: 100%; }
body { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; text-rendering: optimizeLegibility; }

/* Oswald heading refinements */
h1, h2, h3 { letter-spacing: 0.04em; }

/* ── Mobile hamburger nav ─────────────────────────── */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    gap: 5px;
    border-radius: 6px;
    color: #9ca3af;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    flex-shrink: 0;
}
.nav-toggle:hover { opacity: .75; }
.nav-toggle:focus-visible { outline: 2px solid currentColor; outline-offset: 2px; border-radius: 4px; }
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: transform .25s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 640px) {
    .nav-toggle { display: flex; }
    nav .container { flex-wrap: wrap; }
    nav .nav-links {
        order: 9;
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 0;
        padding: 8px 0 12px;
        border-top: 1px solid rgba(128,128,128,.18);
        margin-top: 8px;
    }
    nav .nav-links.is-open { display: flex; }
    nav .nav-links a {
        padding: 11px 0;
        font-size: .95rem;
        letter-spacing: 0;
        text-transform: none;
        border-bottom: 1px solid rgba(128,128,128,.1);
        width: 100%;
        display: block;
    }
    nav .nav-links a:last-child { border-bottom: none; }
}