:root {
    --navy-900: #061a2e;
    --navy-800: #0a2540;
    --navy-700: #12365c;
    --blue-500: #1677c9;
    --blue-400: #2b93e6;
    --teal-400: #1fb5ad;
    --sand-50:  #f6f8fb;
    --gray-200: #e3e8ef;
    --gray-500: #6b7a8c;
    --gray-700: #334155;
    --white:    #ffffff;
    --danger:   #d64545;
    --success:  #1f9d6b;

    --radius: 14px;
    --shadow: 0 10px 30px rgba(10, 37, 64, .08);
    --shadow-lg: 0 20px 50px rgba(10, 37, 64, .15);
    --container: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: "Inter", system-ui, -apple-system, sans-serif;
    color: var(--gray-700);
    background: var(--white);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { color: var(--navy-800); line-height: 1.2; margin: 0 0 .6em; }
h1 { font-size: clamp(2rem, 4.5vw, 3.4rem); font-weight: 800; letter-spacing: -.02em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); font-weight: 800; letter-spacing: -.01em; }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; }

.container { width: min(var(--container), 100% - 32px); margin-inline: auto; }
.center { text-align: center; }
.muted { color: var(--gray-500); font-size: .875rem; }
.icon { width: 1.1em; height: 1.1em; flex-shrink: 0; }
.eyebrow {
    display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .12em;
    text-transform: uppercase; color: var(--teal-400); margin-bottom: .8rem;
}

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
    padding: .85rem 1.5rem; border-radius: 999px; font-weight: 600; font-size: .95rem;
    border: 2px solid transparent; cursor: pointer; transition: .2s ease; font-family: inherit;
}
.btn--sm { padding: .55rem 1.1rem; font-size: .875rem; }
.btn--block { width: 100%; margin-top: .6rem; }
.btn--primary { background: var(--blue-500); color: var(--white); }
.btn--primary:hover { background: var(--navy-700); transform: translateY(-2px); }
.btn--outline { border-color: var(--blue-500); color: var(--blue-500); }
.btn--outline:hover { background: var(--blue-500); color: var(--white); }
.btn--ghost { border-color: rgba(255,255,255,.5); color: var(--white); }
.btn--ghost:hover { background: rgba(255,255,255,.12); border-color: var(--white); }
.btn--light { background: var(--white); color: var(--navy-800); }
.btn--light:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

/* Topbar & header */
.topbar { background: var(--navy-900); color: #b8c7d9; font-size: .82rem; }
.topbar__inner { display: flex; gap: 1.6rem; justify-content: flex-end; padding: .5rem 0; }
.topbar__inner > * { display: inline-flex; align-items: center; gap: .4rem; }
.topbar a:hover { color: var(--white); }

.header {
    position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.95);
    backdrop-filter: blur(10px); border-bottom: 1px solid var(--gray-200); transition: box-shadow .2s;
}
.header.is-scrolled { box-shadow: var(--shadow); }
.header__inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }

.logo { display: flex; align-items: center; gap: .7rem; font-weight: 800; color: var(--navy-800); font-size: 1.15rem; }
.logo span { display: flex; flex-direction: column; line-height: 1.1; }
.logo small { font-size: .68rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; color: var(--teal-400); }
.logo--light { color: var(--white); }

.nav { display: flex; align-items: center; gap: 1.8rem; }
.nav > a:not(.btn) { font-weight: 500; font-size: .95rem; position: relative; padding: .3rem 0; }
.nav > a:not(.btn)::after {
    content: ""; position: absolute; left: 0; bottom: -2px; width: 0; height: 2px;
    background: var(--blue-500); transition: width .2s;
}
.nav > a:not(.btn):hover::after, .nav > a.is-active::after { width: 100%; }
.nav > a.is-active { color: var(--blue-500); }

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: .5rem; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--navy-800); margin: 5px 0; transition: .25s; }

/* Hero */
.hero { position: relative; min-height: 640px; display: flex; align-items: center; color: var(--white); overflow: hidden; background: var(--navy-800); }
.hero__bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(6,26,46,.88) 0%, rgba(6,26,46,.45) 60%, rgba(6,26,46,.1) 100%); }
.hero__content { position: relative; z-index: 1; padding: 6rem 0; }
.hero h1 { color: var(--white); max-width: 720px; }
.hero p { max-width: 560px; font-size: 1.15rem; color: #d3deea; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2rem; }

/* Stats */
.stats { position: relative; z-index: 2; margin-top: -60px; }
.stats--inline { margin-top: 0; padding-bottom: 4rem; }
.stats__grid {
    display: grid; grid-template-columns: repeat(4, 1fr); background: var(--white);
    border-radius: var(--radius); box-shadow: var(--shadow-lg); overflow: hidden;
}
.stat { padding: 2rem 1.5rem; text-align: center; border-right: 1px solid var(--gray-200); }
.stat:last-child { border-right: 0; }
.stat strong { display: block; font-size: 2.2rem; font-weight: 800; color: var(--blue-500); line-height: 1.1; }
.stat span { color: var(--gray-500); font-size: .9rem; }

/* Sections */
.section { padding: 6rem 0; }
.section--alt { background: var(--sand-50); }
.section__head { text-align: center; max-width: 640px; margin: 0 auto 3.5rem; }
.section__head p { color: var(--gray-500); }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; margin-bottom: 3rem; }
.cards--3 { grid-template-columns: repeat(3, 1fr); margin-bottom: 0; }
.card {
    background: var(--white); border-radius: var(--radius); overflow: hidden;
    border: 1px solid var(--gray-200); transition: .25s ease; display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.card__img { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--sand-50); }
.card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.card:hover .card__img img { transform: scale(1.06); }
.badge {
    position: absolute; top: 12px; left: 12px; background: rgba(6,26,46,.8); color: var(--white);
    font-size: .72rem; font-weight: 600; padding: .25rem .7rem; border-radius: 999px;
}
.card__body { padding: 1.5rem; position: relative; flex: 1; display: flex; flex-direction: column; }
.card__icon {
    position: absolute; top: -26px; right: 1.5rem; width: 52px; height: 52px; border-radius: 14px;
    background: var(--blue-500); color: var(--white); display: grid; place-items: center; box-shadow: var(--shadow);
}
.card__icon .icon { width: 24px; height: 24px; }
.card p { font-size: .93rem; color: var(--gray-500); flex: 1; }
.card__link { display: inline-flex; align-items: center; gap: .4rem; color: var(--blue-500); font-weight: 600; font-size: .9rem; }

/* Split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.split--top { align-items: start; }
.split__img { border-radius: var(--radius); box-shadow: var(--shadow-lg); width: 100%; }

.checklist { list-style: none; padding: 0; margin: 1.5rem 0 2rem; display: grid; gap: 1.1rem; }
.checklist li { display: flex; gap: .9rem; align-items: flex-start; }
.checklist li > .icon {
    width: 28px; height: 28px; padding: 5px; border-radius: 50%;
    background: rgba(31,181,173,.12); color: var(--teal-400);
}
.checklist strong { display: block; color: var(--navy-800); }
.checklist span { color: var(--gray-500); font-size: .93rem; }
.checklist--grid { grid-template-columns: 1fr 1fr; }

/* Page hero */
.page-hero {
    background: linear-gradient(135deg, var(--navy-900), var(--navy-700)); color: #c7d4e3;
    padding: 4.5rem 0; position: relative; overflow: hidden;
}
.page-hero::after {
    content: ""; position: absolute; right: -80px; bottom: -120px; width: 420px; height: 420px;
    background: url("../img/wave.svg") no-repeat center / contain; opacity: .25;
}
.page-hero h1 { color: var(--white); margin-bottom: .3em; }
.page-hero p { max-width: 640px; font-size: 1.1rem; margin: 0; }
.breadcrumb { display: flex; gap: .5rem; font-size: .85rem; margin-bottom: 1rem; color: #8fa6bf; }
.breadcrumb a:hover { color: var(--white); }

/* Values */
.values { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.value { background: var(--white); padding: 2rem; border-radius: var(--radius); box-shadow: var(--shadow); }
.value > .icon { width: 40px; height: 40px; color: var(--blue-500); margin-bottom: 1rem; }
.value p { color: var(--gray-500); font-size: .93rem; margin: 0; }

/* Service detail */
.detail { display: grid; grid-template-columns: 2fr 1fr; gap: 3rem; align-items: start; }
.detail__img { border-radius: var(--radius); margin-bottom: 2rem; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.detail__side { position: sticky; top: 100px; display: grid; gap: 1.5rem; }
.side-box { border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 1.6rem; }
.side-box ul { list-style: none; padding: 0; margin: 0; }
.side-box li a { display: flex; align-items: center; gap: .7rem; padding: .7rem .8rem; border-radius: 10px; font-weight: 500; }
.side-box li a:hover, .side-box li a.is-active { background: var(--sand-50); color: var(--blue-500); }
.side-box--dark { background: var(--navy-800); border: 0; color: #c7d4e3; }
.side-box--dark h3 { color: var(--white); }

/* Table */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: .93rem; }
.table th { text-align: left; background: var(--navy-800); color: var(--white); padding: .9rem 1rem; font-weight: 600; }
.table th:first-child { border-top-left-radius: 10px; }
.table th:last-child { border-top-right-radius: 10px; }
.table td { padding: .9rem 1rem; border-bottom: 1px solid var(--gray-200); }
.table tbody tr:hover { background: var(--sand-50); }

/* Contact */
.contact { display: grid; grid-template-columns: 1fr 1.6fr; gap: 3rem; align-items: start; }
.contact__info { display: grid; gap: 1rem; }
.contact__img { border-radius: var(--radius); margin-top: 1rem; }
.info-item { display: flex; gap: 1rem; padding: 1.2rem; border-radius: var(--radius); background: var(--sand-50); }
.info-item > .icon { width: 42px; height: 42px; padding: 10px; border-radius: 12px; background: var(--blue-500); color: var(--white); }
.info-item strong { display: block; color: var(--navy-800); }
.info-item span { font-size: .93rem; color: var(--gray-500); }

.form { background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 2.4rem; box-shadow: var(--shadow); scroll-margin-top: 100px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.field { display: flex; flex-direction: column; gap: .4rem; font-size: .88rem; font-weight: 600; color: var(--navy-800); margin-bottom: 1.1rem; }
.field input, .field select, .field textarea {
    font: inherit; font-weight: 400; color: var(--gray-700); padding: .8rem 1rem;
    border: 1px solid var(--gray-200); border-radius: 10px; background: var(--sand-50); transition: .2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
    outline: none; border-color: var(--blue-500); background: var(--white); box-shadow: 0 0 0 4px rgba(22,119,201,.12);
}
.field__error { color: var(--danger); font-weight: 500; }
.hp { position: absolute; left: -9999px; }
.alert { padding: 1rem 1.2rem; border-radius: 10px; margin-bottom: 1.5rem; font-weight: 500; }
.alert--success { background: rgba(31,157,107,.1); color: var(--success); }
.alert--error { background: rgba(214,69,69,.1); color: var(--danger); }

/* CTA */
.cta { background: linear-gradient(120deg, var(--blue-500), var(--teal-400)); color: var(--white); padding: 4rem 0; }
.cta__inner { display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.cta h2 { color: var(--white); margin-bottom: .3em; }
.cta p { margin: 0; opacity: .9; }
.cta__actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Footer */
.footer { background: var(--navy-900); color: #8fa6bf; padding-top: 4.5rem; font-size: .93rem; }
.footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.3fr; gap: 3rem; padding-bottom: 3rem; }
.footer h4 { color: var(--white); font-size: 1rem; margin-bottom: 1.2rem; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .6rem; }
.footer a:hover { color: var(--white); }
.footer__text { margin-top: 1.2rem; }
.footer__contact li { display: flex; gap: .6rem; align-items: flex-start; }
.footer__contact .icon { margin-top: .25rem; color: var(--teal-400); }
.footer__bottom {
    display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
    border-top: 1px solid rgba(255,255,255,.08); padding: 1.5rem 0; font-size: .85rem;
}
.footer__social { display: flex; gap: 1.2rem; }

.notfound img { margin: 0 auto 2rem; }

/* Reveal animation */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
    html { scroll-behavior: auto; }
}

/* Responsive */
@media (max-width: 1024px) {
    .cards { grid-template-columns: repeat(2, 1fr); }
    .cards--3 { grid-template-columns: repeat(2, 1fr); }
    .values { grid-template-columns: repeat(2, 1fr); }
    .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
    .topbar__inner { justify-content: center; }
    .topbar__inner > span, .topbar__inner > a[href^="mailto"] { display: none; }
    .nav-toggle { display: block; }
    .nav {
        position: fixed; inset: 76px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0;
        background: var(--white); padding: 1rem 16px 1.5rem; box-shadow: var(--shadow-lg);
        transform: translateY(-120%); transition: transform .3s ease; z-index: -1;
    }
    .nav.is-open { transform: none; }
    .nav > a:not(.btn) { padding: .9rem 0; border-bottom: 1px solid var(--gray-200); }
    .nav > a:not(.btn)::after { display: none; }
    .nav .btn { margin-top: 1rem; }
    .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; }
    .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    .hero { min-height: 560px; }
    .stats__grid { grid-template-columns: repeat(2, 1fr); }
    .stat:nth-child(2) { border-right: 0; }
    .stat:nth-child(-n+2) { border-bottom: 1px solid var(--gray-200); }
    .split, .detail, .contact { grid-template-columns: 1fr; gap: 2.5rem; }
    .detail__side { position: static; }
    .cta__inner { flex-direction: column; text-align: center; }
    .section { padding: 4rem 0; }
}

@media (max-width: 560px) {
    .cards, .cards--3, .values, .footer__grid, .form__row, .checklist--grid { grid-template-columns: 1fr; }
    .form { padding: 1.5rem; }
    .stat strong { font-size: 1.7rem; }
}