:root {
    --primary: #0f2f57;
    --primary-soft: #173f73;
    --accent: #f28c28;
    --dark: #0b1b2f;
    --light: #f6f8fb;
    --white: #ffffff;
    --text: #1f2937;
    --muted: #6b7280;
    --border: rgba(15, 47, 87, 0.10);
    --shadow: 0 16px 40px rgba(8, 20, 38, 0.12);
    --radius: 22px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    color: var(--text);
    background: var(--white);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.section { padding: 88px 0; }
.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 18px;
}
.section-heading { max-width: 760px; margin-bottom: 42px; }
.section-heading.center { margin-inline: auto; text-align: center; }
h1, h2, h3 { line-height: 1.15; color: var(--dark); margin: 0 0 14px; }
h1 { font-size: clamp(2.4rem, 5vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3.1rem); }
h3 { font-size: 1.2rem; }
p { color: var(--muted); line-height: 1.7; margin: 0 0 16px; }
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 24px;
    border-radius: 999px;
    font-weight: 700;
    transition: .25s ease;
    border: 1px solid transparent;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--accent); color: var(--white); }
.btn-secondary { background: rgba(255,255,255,.16); color: var(--white); border-color: rgba(255,255,255,.28); backdrop-filter: blur(6px); }

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(11, 27, 47, .82);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 84px;
}
.brand img { width: 170px; height: auto; }
.main-nav ul { list-style: none; display: flex; align-items: center; gap: 28px; margin: 0; padding: 0; }
.main-nav a { color: rgba(255,255,255,.92); font-weight: 600; }
.nav-toggle { display: none; background: none; border: 0; color: #fff; font-size: 28px; }

.hero { position: relative; margin-top: -84px; }
.hero-slider { position: relative; overflow: hidden; }
.slide {
    min-height: 100vh;
    display: none;
    position: relative;
    background-size: cover;
    background-position: center;
}
.slide.is-active { display: flex; align-items: center; }
.slide-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(90deg, rgba(8,20,38,.84) 0%, rgba(8,20,38,.5) 45%, rgba(8,20,38,.28) 100%);
}
.slide-content { position: relative; z-index: 2; padding-top: 84px; }
.eyebrow { display: inline-block; color: #fff; opacity: .88; letter-spacing: .18em; text-transform: uppercase; font-size: 13px; margin-bottom: 20px; font-weight: 700; }
.slide h1, .slide p { color: #fff; max-width: 760px; }
.slide p { font-size: 1.08rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.slider-dots {
    position: absolute; bottom: 34px; left: 50%; transform: translateX(-50%);
    display: flex; gap: 10px; z-index: 3;
}
.slider-dot {
    width: 14px; height: 14px; border-radius: 50%; border: 0; background: rgba(255,255,255,.4); cursor: pointer;
}
.slider-dot.is-active { background: var(--accent); }

.stats-strip { background: var(--primary); color: #fff; padding: 24px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.stats-grid div { display: grid; gap: 6px; }
.stats-grid strong { font-size: 1rem; color: #fff; }
.stats-grid span { color: rgba(255,255,255,.72); }

.two-col { display: grid; grid-template-columns: 1.2fr .8fr; gap: 36px; align-items: start; }
.about-card, .contact-card, .contact-form-panel, .service-card, .value-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.about-card { padding: 34px; background: linear-gradient(180deg, #fff 0%, #f8fafc 100%); }
.about-card ul { margin: 0; padding-left: 20px; color: var(--muted); line-height: 1.9; }

.services { background: var(--light); }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card { padding: 28px; }
.service-card h3 { font-size: 1.08rem; }

.projects-marquee {
    position: relative;
    overflow: hidden;
    width: 100%;
    padding: 6px 0;
}
.projects-track {
    display: flex;
    align-items: stretch;
    gap: 18px;
    width: max-content;
    animation: projects-scroll 34s linear infinite;
    will-change: transform;
}
.projects-marquee:hover .projects-track {
    animation-play-state: paused;
}
.project-card {
    overflow: hidden;
    border-radius: 18px;
    box-shadow: var(--shadow);
    background: #eef2f7;
    height: 240px;
    width: 320px;
    flex: 0 0 320px;
}
.project-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.project-card:hover img { transform: scale(1.05); }
@keyframes projects-scroll {
    from { transform: translateX(0); }
    to { transform: translateX(calc(-50% - 9px)); }
}

.values { background: linear-gradient(180deg, #fff 0%, #f7f9fc 100%); }
.value-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.value-item { padding: 28px; }
.value-item strong { display: block; margin-bottom: 10px; color: var(--primary); }
.value-item span { color: var(--muted); line-height: 1.7; }

.contact-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: 28px; }
.contact-card { padding: 26px; margin-top: 18px; }
.contact-form-panel { padding: 32px; background: linear-gradient(180deg, #fff 0%, #f7f9ff 100%); }
.contact-form { display: grid; gap: 16px; }
.contact-form label { display: grid; gap: 8px; font-weight: 600; color: var(--dark); }
.contact-form input,
.contact-form textarea {
    width: 100%;
    border: 1px solid rgba(15,47,87,.14);
    border-radius: 14px;
    padding: 14px 16px;
    font: inherit;
}
.direct-contact { margin-top: 22px; padding-top: 18px; border-top: 1px solid rgba(15,47,87,.08); }

.site-footer { background: var(--dark); color: #fff; padding-top: 68px; }
.footer-grid { display: grid; grid-template-columns: 1.15fr 1fr .8fr; gap: 30px; }
.site-footer p, .site-footer a { color: rgba(255,255,255,.78); }
.site-footer h3 { color: #fff; margin-bottom: 16px; }
.footer-logo { width: 160px; margin-bottom: 18px; }
.footer-links { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); margin-top: 34px; padding: 22px 0; text-align: center; }
.floating-whatsapp {
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 60;
    background: #25D366;
    color: #fff;
    padding: 14px 18px;
    border-radius: 999px;
    font-weight: 800;
    box-shadow: 0 14px 32px rgba(37,211,102,.28);
}


@media (max-width: 760px) {
    .project-card {
        width: 260px;
        flex-basis: 260px;
        height: 200px;
    }
    .projects-track {
        gap: 14px;
        animation-duration: 28s;
    }
}
@media (max-width: 1024px) {
    .service-grid, .value-grid { grid-template-columns: repeat(2, 1fr); }
    .two-col, .contact-grid, .footer-grid, .stats-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
    .nav-toggle { display: inline-block; }
    .main-nav ul {
        display: none;
        position: absolute;
        top: 84px;
        right: 16px;
        background: rgba(11, 27, 47, .96);
        border: 1px solid rgba(255,255,255,.08);
        border-radius: 18px;
        padding: 18px;
        width: min(280px, calc(100vw - 32px));
        flex-direction: column;
        align-items: flex-start;
    }
    .main-nav ul.is-open { display: flex; }
    .service-grid, .value-grid { grid-template-columns: 1fr; }
    .section { padding: 72px 0; }
    .slide { min-height: 88vh; }
}