/* ===== Design tokens ===== */
:root {
    --primary: #0e7c86;
    --primary-dark: #095a62;
    --primary-light: #e6f4f5;
    --accent: #f2994a;
    --accent-dark: #d9791f;
    --ink: #16323a;
    --ink-soft: #4a6167;
    --line: #e1ebec;
    --bg: #ffffff;
    --bg-alt: #f5fafa;
    --white: #ffffff;
    --radius: 14px;
    --radius-sm: 8px;
    --shadow: 0 10px 30px -12px rgba(14, 60, 66, 0.18);
    --shadow-sm: 0 4px 14px -6px rgba(14, 60, 66, 0.15);
    --font-heading: 'Poppins', 'Segoe UI', sans-serif;
    --font-body: 'Inter', 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font-body);
    color: var(--ink);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { font-family: var(--font-heading); color: var(--ink); margin: 0 0 .5em; line-height: 1.25; }
p { margin: 0 0 1em; color: var(--ink-soft); }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { margin: 0; padding: 0; list-style: none; }
.container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 24px; }

.icon { width: 24px; height: 24px; }
.icon-sm { width: 18px; height: 18px; flex-shrink: 0; color: var(--primary); }

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 26px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.95rem;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--accent); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--accent-dark); }
.btn-outline { border-color: rgba(255,255,255,0.7); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,0.12); }
.btn-line { border-color: var(--primary); color: var(--primary); }
.btn-line:hover { background: var(--primary); color: #fff; }
.btn-block { width: 100%; justify-content: center; }

/* ===== Header ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid transparent;
    transition: border-color .2s ease, box-shadow .2s ease;
}
.site-header.scrolled { border-color: var(--line); box-shadow: 0 2px 16px rgba(14,60,66,0.06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 78px; }

.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
    width: 42px; height: 42px; border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff; display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.brand-mark .icon { width: 22px; height: 22px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-family: var(--font-heading); font-weight: 700; font-size: 1.05rem; color: var(--primary-dark); }
.brand-sub { font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--accent-dark); font-weight: 600; }

.site-nav { display: flex; align-items: center; gap: 30px; }
.site-nav ul { display: flex; gap: 26px; }
.site-nav a { font-weight: 500; color: var(--ink-soft); padding: 6px 2px; border-bottom: 2px solid transparent; transition: color .15s ease, border-color .15s ease; }
.site-nav a:hover, .site-nav a.active { color: var(--primary); border-color: var(--primary); }
.nav-cta { padding: 11px 22px; }

.nav-toggle {
    display: none; background: none; border: none; cursor: pointer; padding: 6px; color: var(--primary-dark);
}
.nav-toggle .nav-toggle-close { display: none; }
.nav-toggle[aria-expanded="true"] .nav-toggle-open { display: none; }
.nav-toggle[aria-expanded="true"] .nav-toggle-close { display: block; }

/* ===== Hero ===== */
.hero {
    position: relative;
    background: radial-gradient(1100px 500px at 85% -10%, #d9f0f1 0%, transparent 60%), linear-gradient(180deg, var(--bg-alt), var(--bg));
    padding: 78px 0 90px;
    overflow: hidden;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: center; }
.eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--primary-light); color: var(--primary-dark);
    padding: 7px 16px; border-radius: 999px; font-size: .8rem; font-weight: 600;
    letter-spacing: .04em; margin-bottom: 18px;
}
.hero h1 { font-size: clamp(2.1rem, 3.6vw, 3rem); font-weight: 700; }
.hero h1 span { color: var(--primary); }
.hero-lead { font-size: 1.08rem; max-width: 52ch; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }
.hero-stats { display: flex; gap: 34px; margin-top: 46px; flex-wrap: wrap; }
.hero-stat strong { display: block; font-family: var(--font-heading); font-size: 1.7rem; color: var(--primary-dark); }
.hero-stat span { font-size: .85rem; color: var(--ink-soft); }

.hero-visual {
    background: linear-gradient(155deg, var(--primary), var(--primary-dark));
    border-radius: 22px; padding: 34px; color: #fff; box-shadow: var(--shadow);
    position: relative;
}
.hero-visual ul { display: grid; gap: 16px; }
.hero-visual li { display: flex; align-items: center; gap: 14px; background: rgba(255,255,255,0.1); padding: 14px 16px; border-radius: var(--radius-sm); }
.hero-visual li .icon { color: #fff; width: 22px; height: 22px; flex-shrink: 0; }
.hero-visual li span { font-weight: 500; font-size: .95rem; }

/* ===== Sections ===== */
section { padding: 84px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { max-width: 640px; margin: 0 auto 48px; text-align: center; }
.section-head h2 { font-size: clamp(1.6rem, 2.6vw, 2.2rem); }
.section-head .eyebrow { margin-bottom: 14px; }
.section-head.align-left { margin: 0 0 40px; text-align: left; }

/* ===== Services grid ===== */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.service-card {
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
    padding: 30px 26px; transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: transparent; }
.service-icon {
    width: 54px; height: 54px; border-radius: 14px;
    background: var(--primary-light); color: var(--primary);
    display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.service-card h3 { font-size: 1.12rem; }
.service-card p { font-size: .95rem; margin-bottom: 16px; }
.service-link { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-weight: 600; font-size: .92rem; }
.service-link .icon { width: 16px; height: 16px; transition: transform .15s ease; }
.service-link:hover .icon { transform: translateX(4px); }

/* ===== Why us ===== */
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.why-item { text-align: center; padding: 10px; }
.why-icon {
    width: 60px; height: 60px; margin: 0 auto 16px; border-radius: 50%;
    background: var(--primary-light); color: var(--primary);
    display: flex; align-items: center; justify-content: center;
}
.why-item h3 { font-size: 1.02rem; }
.why-item p { font-size: .9rem; }

/* ===== CTA band ===== */
.cta-band {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff; border-radius: 24px; padding: 54px 48px;
    display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap;
}
.cta-band h2 { color: #fff; margin-bottom: 8px; }
.cta-band p { color: rgba(255,255,255,0.85); margin: 0; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ===== About page ===== */
.about-hero { padding: 60px 0 20px; }
.about-hero h1 { font-size: clamp(2rem, 3.4vw, 2.7rem); }
.mv-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.mv-card {
    background: var(--bg-alt); border-radius: var(--radius); padding: 34px;
    border-top: 4px solid var(--primary);
}
.mv-card.vision { border-top-color: var(--accent); }
.mv-card .service-icon { background: #fff; }
.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.value-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.value-card h3 { font-size: 1rem; }
.value-card p { font-size: .9rem; margin: 0; }

/* ===== Service single page ===== */
.service-hero { background: var(--bg-alt); padding: 56px 0; }
.breadcrumbs { font-size: .88rem; color: var(--ink-soft); margin-bottom: 18px; }
.breadcrumbs a { color: var(--primary); font-weight: 500; }
.breadcrumbs .sep { margin: 0 8px; }
.service-hero-inner { display: flex; align-items: center; gap: 22px; }
.service-hero-inner .service-icon { width: 68px; height: 68px; }
.service-hero-inner .service-icon .icon { width: 32px; height: 32px; }
.service-hero-inner h1 { font-size: clamp(1.6rem, 2.8vw, 2.2rem); margin: 0; }

.service-body { display: grid; grid-template-columns: 1.5fr 1fr; gap: 44px; align-items: start; }
.points-list { display: grid; gap: 14px; margin-top: 22px; }
.points-list li { display: flex; gap: 12px; align-items: flex-start; background: var(--bg-alt); padding: 14px 16px; border-radius: var(--radius-sm); }
.points-list .icon { color: var(--primary); width: 20px; height: 20px; flex-shrink: 0; margin-top: 2px; }
.points-list span { color: var(--ink); font-weight: 500; font-size: .96rem; }

.sidebar-card { background: var(--primary-light); border-radius: var(--radius); padding: 28px; position: sticky; top: 100px; }
.sidebar-card h3 { font-size: 1.05rem; }
.sidebar-list li { padding: 9px 0; border-bottom: 1px solid rgba(14,124,134,0.14); }
.sidebar-list li:last-child { border: none; }
.sidebar-list a { font-weight: 500; color: var(--primary-dark); font-size: .93rem; }
.sidebar-list a.active-service { color: var(--accent-dark); font-weight: 700; }
.sidebar-card .btn { margin-top: 18px; }

/* ===== Contact page ===== */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 44px; }
.contact-info-card { background: var(--bg-alt); border-radius: var(--radius); padding: 32px; }
.contact-info-list { display: grid; gap: 20px; margin-top: 22px; }
.contact-info-list li { display: flex; gap: 14px; align-items: flex-start; }
.contact-info-list .icon-sm { width: 22px; height: 22px; margin-top: 2px; }
.contact-info-list strong { display: block; font-size: .95rem; }
.contact-info-list span { font-size: .9rem; color: var(--ink-soft); }

.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 34px; box-shadow: var(--shadow-sm); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: .88rem; font-weight: 600; margin-bottom: 7px; color: var(--ink); }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: var(--radius-sm);
    font-family: var(--font-body); font-size: .95rem; color: var(--ink); background: var(--bg-alt);
    transition: border-color .15s ease;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); background: #fff; }
.form-group textarea { resize: vertical; min-height: 120px; }

.alert { padding: 14px 18px; border-radius: var(--radius-sm); margin-bottom: 22px; font-size: .92rem; font-weight: 500; }
.alert-success { background: #e4f7ec; color: #1c7a45; border: 1px solid #bfe9d1; }
.alert-error { background: #fdecec; color: #b3261e; border: 1px solid #f6c6c4; }

.map-embed { border-radius: var(--radius); overflow: hidden; margin-top: 26px; border: 1px solid var(--line); height: 260px; }
.map-embed iframe { width: 100%; height: 100%; border: 0; }

/* ===== 404 ===== */
.not-found { text-align: center; padding: 110px 0; }
.not-found h1 { font-size: 4rem; color: var(--primary); }

/* ===== Footer ===== */
.site-footer { background: #0c2a2f; color: #cfe3e4; padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 34px; padding-bottom: 46px; }
.footer-col h4 { color: #fff; font-size: .95rem; margin-bottom: 18px; }
.footer-about p { color: #9db8b9; font-size: .9rem; margin-top: 14px; }
.brand-footer .brand-name { color: #fff; }
.footer-links li { margin-bottom: 11px; }
.footer-links a { color: #9db8b9; font-size: .9rem; transition: color .15s ease; }
.footer-links a:hover { color: #fff; }
.footer-contact li { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 14px; font-size: .88rem; color: #9db8b9; }
.footer-contact .icon-sm { color: #6fb3b8; margin-top: 2px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; }
.footer-bottom-inner { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: .82rem; color: #7e9c9d; }

/* ===== Responsive ===== */
@media (max-width: 980px) {
    .hero-grid, .service-body, .contact-grid, .mv-grid { grid-template-columns: 1fr; }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .why-grid, .values-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .sidebar-card { position: static; }
}

@media (max-width: 760px) {
    .nav-toggle { display: block; }
    .site-nav {
        position: absolute; top: 78px; left: 0; right: 0;
        background: #fff; flex-direction: column; align-items: stretch;
        padding: 20px 24px 26px; border-bottom: 1px solid var(--line);
        box-shadow: 0 12px 20px -10px rgba(14,60,66,0.15);
        display: none;
    }
    .site-nav.open { display: flex; }
    .site-nav ul { flex-direction: column; gap: 4px; }
    .site-nav a { display: block; padding: 12px 4px; }
    .nav-cta { margin-top: 10px; text-align: center; justify-content: center; }
    .services-grid, .why-grid, .values-grid, .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .cta-band { flex-direction: column; text-align: center; padding: 40px 26px; }
    .cta-actions { justify-content: center; }
    section { padding: 56px 0; }
    .service-hero-inner { flex-direction: column; text-align: center; }
}