/* ==========================================================
   BP Tech Consulting — main stylesheet
   Layout grid comes from bootstrap.min.css (v5); everything
   visual lives here. Edit the brand tokens below to retheme.
   ========================================================== */

:root {
    --navy-900: #071A3D;
    --navy-800: #0A2A6B;
    --blue-700: #0D47A1;
    --blue-600: #1557D6;
    --blue-500: #2F8BF0;
    --sky-200: #BFDBFE;
    --sky-100: #E8F1FD;
    --ink: #0F172A;
    --text: #334155;
    --muted: #64748B;
    --line: #E2E8F0;
    --bg-soft: #F5F8FD;
    --white: #FFFFFF;
    --whatsapp: #25D366;

    --font-head: 'Montserrat', 'Segoe UI', Arial, sans-serif;
    --font-body: 'Inter', 'Segoe UI', Arial, sans-serif;

    --radius: 14px;
    --radius-sm: 10px;
    --shadow-sm: 0 2px 8px rgba(10, 42, 107, 0.06);
    --shadow: 0 12px 32px rgba(10, 42, 107, 0.10);
    --header-h: 76px;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }
body {
    margin: 0;
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, h5 {
    font-family: var(--font-head);
    color: var(--ink);
    line-height: 1.25;
    margin: 0 0 0.6em;
    font-weight: 700;
}
p { margin: 0 0 1em; }
a { color: var(--blue-600); text-decoration: none; transition: color .2s; }
a:hover { color: var(--blue-700); }
img { max-width: 100%; height: auto; display: block; }
ul { margin: 0; padding: 0; }

.section { padding: 96px 0; }
.section-soft { background: var(--bg-soft); }
.section-sm { padding: 64px 0; }

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-head);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--blue-600);
    margin-bottom: 14px;
}
.eyebrow::before {
    content: "";
    width: 22px;
    height: 2px;
    background: currentColor;
}
.section-head { max-width: 680px; margin-bottom: 52px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .eyebrow::after { content: ""; width: 22px; height: 2px; background: currentColor; }
.section-head h2 { font-size: clamp(28px, 3.4vw, 40px); }
.section-head p { color: var(--muted); font-size: 17px; margin: 0; }

/* ---------- Buttons ---------- */
.btn-bp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 999px;
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 15px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform .2s, box-shadow .2s, background .2s, color .2s, border-color .2s;
    white-space: nowrap;
}
.btn-bp:hover { transform: translateY(-2px); }
.btn-primary-bp {
    background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
    color: var(--white);
    box-shadow: 0 10px 24px rgba(21, 87, 214, .28);
}
.btn-primary-bp:hover { color: var(--white); box-shadow: 0 14px 30px rgba(21, 87, 214, .36); }
.btn-outline-bp { border-color: var(--blue-600); color: var(--blue-600); background: transparent; }
.btn-outline-bp:hover { background: var(--blue-600); color: var(--white); }
.btn-light-bp { background: var(--white); color: var(--navy-800); }
.btn-light-bp:hover { color: var(--blue-600); }
.btn-ghost-bp { border-color: rgba(255,255,255,.5); color: var(--white); }
.btn-ghost-bp:hover { background: rgba(255,255,255,.12); color: var(--white); }
.btn-whatsapp { background: var(--whatsapp); color: var(--white); }
.btn-whatsapp:hover { color: var(--white); box-shadow: 0 10px 24px rgba(37, 211, 102, .3); }

.link-arrow { font-family: var(--font-head); font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 8px; }
.link-arrow .fa { transition: transform .2s; }
.link-arrow:hover .fa { transform: translateX(4px); }

/* ---------- Header ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, .96);
    backdrop-filter: saturate(160%) blur(10px);
    border-bottom: 1px solid transparent;
    transition: box-shadow .25s, border-color .25s;
}
.site-header.scrolled { box-shadow: var(--shadow-sm); border-color: var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); gap: 24px; }

.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); }
.brand:hover { color: var(--ink); }
.brand img { width: 44px; height: 44px; }
.brand-text { display: flex; flex-direction: column; line-height: 1; }
.brand-name { font-family: var(--font-head); font-weight: 800; font-size: 20px; letter-spacing: .02em; color: var(--navy-800); }
.brand-sub { font-family: var(--font-head); font-weight: 500; font-size: 10.5px; letter-spacing: .38em; color: var(--muted); margin-top: 5px; }

.main-nav ul { list-style: none; display: flex; align-items: center; gap: 4px; }
.main-nav a {
    display: block;
    padding: 8px 12px;
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 14.5px;
    color: var(--ink);
    border-radius: 8px;
    position: relative;
}
.main-nav a:hover { color: var(--blue-600); }
.main-nav a.active { color: var(--blue-600); }
.main-nav a.active::after {
    content: "";
    position: absolute;
    left: 12px; right: 12px; bottom: 2px;
    height: 2px;
    background: var(--blue-600);
    border-radius: 2px;
}
.header-cta { display: flex; align-items: center; gap: 12px; }
.header-cta .btn-bp { padding: 11px 22px; font-size: 14px; }

.nav-toggle {
    display: none;
    width: 44px; height: 44px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--white);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
}
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .25s, opacity .25s; }
.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero (home) ---------- */
.hero {
    position: relative;
    overflow: hidden;
    padding: 96px 0 110px;
    background:
        radial-gradient(900px 500px at 85% 20%, rgba(47, 139, 240, .16), transparent 60%),
        radial-gradient(700px 400px at 0% 100%, rgba(21, 87, 214, .08), transparent 60%),
        var(--white);
}
.hero h1 { font-size: clamp(34px, 5vw, 56px); font-weight: 800; letter-spacing: -.01em; margin-bottom: 22px; }
.hero h1 .accent {
    background: linear-gradient(135deg, var(--blue-500), var(--navy-800));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.hero-lead { font-size: 18px; color: var(--muted); max-width: 560px; margin-bottom: 34px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-audience { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 40px; font-size: 14px; color: var(--muted); }
.hero-audience span { display: inline-flex; align-items: center; gap: 8px; }
.hero-audience .fa { color: var(--blue-600); }

.hero-visual { position: relative; max-width: 460px; margin: 0 auto; aspect-ratio: 1 / 1; }
.hero-visual .glow {
    position: absolute; inset: 12%;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(47, 139, 240, .45), transparent 70%);
    filter: blur(20px);
}
.hero-visual .hero-mark { position: absolute; top: 22%; left: 22%; width: 56%; height: 56%; animation: float 6s ease-in-out infinite; }
.hero-chip {
    position: absolute;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: var(--shadow);
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 14px;
    color: var(--ink);
    white-space: nowrap;
}
.hero-chip .fa {
    width: 30px; height: 30px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 8px;
    background: var(--sky-100);
    color: var(--blue-600);
}
.hero-chip.c1 { top: 6%; left: -2%; animation: float 7s ease-in-out infinite; }
.hero-chip.c2 { top: 22%; right: -6%; animation: float 8s ease-in-out infinite .6s; }
.hero-chip.c3 { bottom: 18%; left: -6%; animation: float 7.5s ease-in-out infinite 1.2s; }
.hero-chip.c4 { bottom: 4%; right: 2%; animation: float 6.5s ease-in-out infinite .3s; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
    position: relative;
    overflow: hidden;
    padding: 88px 0 80px;
    color: var(--white);
    background:
        radial-gradient(700px 360px at 90% 0%, rgba(47, 139, 240, .45), transparent 60%),
        linear-gradient(135deg, var(--navy-900), var(--navy-800) 60%, var(--blue-700));
}
.page-hero::after {
    content: "";
    position: absolute;
    right: -60px; bottom: -80px;
    width: 340px; height: 340px;
    background: url("../images/logo-mark.svg") no-repeat center / contain;
    opacity: .07;
}
.page-hero h1 { color: var(--white); font-size: clamp(32px, 4.4vw, 48px); font-weight: 800; margin-bottom: 14px; }
.page-hero p { color: rgba(255,255,255,.8); font-size: 18px; max-width: 640px; margin: 0; }
.breadcrumb-bp { list-style: none; display: flex; gap: 8px; font-size: 14px; margin-bottom: 18px; color: rgba(255,255,255,.7); }
.breadcrumb-bp a { color: var(--sky-200); }
.breadcrumb-bp li + li::before { content: "/"; margin-right: 8px; opacity: .6; }

/* ---------- Cards ---------- */
.card-bp {
    height: 100%;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 32px 28px;
    transition: transform .25s, box-shadow .25s, border-color .25s;
}
.card-bp:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.card-bp h3 { font-size: 20px; margin-bottom: 10px; }
.card-bp p { color: var(--muted); font-size: 15px; }
.icon-box {
    width: 56px; height: 56px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 14px;
    background: var(--sky-100);
    color: var(--blue-600);
    font-size: 24px;
    margin-bottom: 22px;
    transition: background .25s, color .25s;
}
.card-bp:hover .icon-box { background: linear-gradient(135deg, var(--blue-500), var(--blue-600)); color: var(--white); }

.check-list { list-style: none; display: grid; gap: 8px; margin: 14px 0 18px; }
.check-list li { position: relative; padding-left: 26px; font-size: 15px; }
.check-list li::before {
    content: "\f00c";
    font-family: 'FontAwesome';
    position: absolute; left: 0; top: 1px;
    font-size: 12px;
    color: var(--blue-600);
}

.tag-list { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; }
.tag-list li {
    padding: 6px 14px;
    border-radius: 999px;
    background: var(--sky-100);
    color: var(--navy-800);
    font-size: 13.5px;
    font-weight: 500;
}

/* ---------- Audience strip ---------- */
.audience-strip { margin-top: -54px; position: relative; z-index: 2; }
.audience-card {
    display: flex; gap: 18px; align-items: flex-start;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px;
    height: 100%;
}
.audience-card .icon-box { margin: 0; flex-shrink: 0; }
.audience-card h3 { font-size: 18px; margin-bottom: 4px; }
.audience-card p { font-size: 14.5px; color: var(--muted); margin: 0; }

/* ---------- Why us ---------- */
.why-list { list-style: none; display: grid; gap: 18px; }
.why-item { display: flex; gap: 18px; align-items: flex-start; }
.why-item .num {
    flex-shrink: 0;
    width: 44px; height: 44px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 12px;
    background: var(--navy-800);
    color: var(--white);
    font-family: var(--font-head);
    font-weight: 700;
}
.why-item h3 { font-size: 18px; margin-bottom: 4px; }
.why-item p { margin: 0; color: var(--muted); font-size: 15px; }

.stat-panel {
    border-radius: 20px;
    padding: 44px 36px;
    color: var(--white);
    background:
        radial-gradient(400px 240px at 100% 0%, rgba(47, 139, 240, .5), transparent 60%),
        linear-gradient(150deg, var(--navy-800), var(--navy-900));
    position: relative;
    overflow: hidden;
}
.stat-panel h3 { color: var(--white); font-size: 24px; }
.stat-panel p { color: rgba(255,255,255,.78); }
.stat-panel .check-list li::before { color: var(--sky-200); }
.stat-panel .check-list li { color: rgba(255,255,255,.9); }

/* ---------- Process ---------- */
.process-step { position: relative; padding-top: 8px; }
.process-step .step-no {
    font-family: var(--font-head);
    font-weight: 800;
    font-size: 44px;
    line-height: 1;
    color: var(--sky-200);
    margin-bottom: 12px;
}
.process-step h3 { font-size: 19px; }
.process-step p { font-size: 15px; color: var(--muted); margin: 0; }

/* ---------- Industry tiles ---------- */
.industry-tile {
    display: flex; align-items: center; gap: 14px;
    padding: 18px 20px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--white);
    font-family: var(--font-head);
    font-weight: 600;
    color: var(--ink);
    height: 100%;
    transition: border-color .2s, box-shadow .2s, transform .2s;
}
.industry-tile:hover { border-color: var(--blue-600); box-shadow: var(--shadow-sm); transform: translateY(-3px); color: var(--ink); }
.industry-tile .fa { width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center; border-radius: 10px; background: var(--sky-100); color: var(--blue-600); font-size: 18px; flex-shrink: 0; }

/* ---------- Service detail blocks ---------- */
.service-block { padding: 56px 0; border-bottom: 1px solid var(--line); }
.service-block:last-child { border-bottom: 0; }
.service-block h2 { font-size: clamp(26px, 3vw, 34px); }
.service-block .lead-text { font-size: 17px; color: var(--muted); }
.offer-card {
    background: var(--bg-soft);
    border-radius: var(--radius-sm);
    padding: 22px 22px;
    height: 100%;
}
.offer-card h4 { font-size: 16.5px; margin-bottom: 6px; display: flex; align-items: center; gap: 10px; }
.offer-card h4 .fa { color: var(--blue-600); }
.offer-card p { font-size: 14.5px; color: var(--muted); margin: 0; }

.service-nav { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; }
.service-nav a {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 18px;
    border-radius: 999px;
    border: 1px solid var(--line);
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 14px;
    color: var(--ink);
    background: var(--white);
}
.service-nav a:hover { border-color: var(--blue-600); color: var(--blue-600); }

/* ---------- Tech groups ---------- */
.tech-group h3 { font-size: 19px; display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.tech-group h3 .fa { color: var(--blue-600); }

/* ---------- Portfolio ---------- */
.filter-bar { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 40px; }
.filter-btn {
    padding: 9px 20px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: var(--white);
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 14px;
    color: var(--ink);
    cursor: pointer;
    transition: all .2s;
}
.filter-btn:hover { border-color: var(--blue-600); color: var(--blue-600); }
.filter-btn.active { background: var(--blue-600); border-color: var(--blue-600); color: var(--white); }
.work-card { overflow: hidden; padding: 0; }
.work-thumb {
    height: 180px;
    display: flex; align-items: center; justify-content: center;
    background:
        radial-gradient(260px 160px at 80% 0%, rgba(47, 139, 240, .55), transparent 60%),
        linear-gradient(135deg, var(--navy-900), var(--navy-800));
    color: rgba(255,255,255,.92);
    font-size: 54px;
}
.work-body { padding: 26px 26px 28px; }
.work-cat { font-size: 12.5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--blue-600); margin-bottom: 8px; display: block; }
.portfolio-item.is-hidden { display: none; }

/* ---------- Blog ---------- */
.post-card { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
.post-card .work-thumb { height: 160px; font-size: 46px; }
.post-card .work-body { display: flex; flex-direction: column; flex: 1; }
.post-card .work-body .link-arrow { margin-top: auto; }
.post-meta { font-size: 13.5px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 6px 16px; margin-bottom: 10px; }
.post-meta .fa { color: var(--blue-600); margin-right: 4px; }
.post-card h3 a { color: var(--ink); }
.post-card h3 a:hover { color: var(--blue-600); }

.article { max-width: 760px; margin: 0 auto; font-size: 17px; }
.article h2 { font-size: 26px; margin-top: 1.8em; }
.article ul, .article ol { padding-left: 1.3em; margin-bottom: 1.2em; }
.article li { margin-bottom: .4em; }
.article .callout {
    border-left: 4px solid var(--blue-600);
    background: var(--sky-100);
    padding: 18px 22px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 28px 0;
    color: var(--navy-800);
}

/* ---------- Notice / empty state ---------- */
.notice {
    display: flex; gap: 18px; align-items: center;
    border: 1px dashed var(--sky-200);
    background: var(--sky-100);
    border-radius: var(--radius);
    padding: 22px 26px;
    color: var(--navy-800);
}
.notice .fa { font-size: 26px; color: var(--blue-600); }
.notice p { margin: 0; }

/* ---------- CTA band ---------- */
.cta-band {
    position: relative;
    overflow: hidden;
    border-radius: 24px;
    padding: 64px 56px;
    color: var(--white);
    background:
        radial-gradient(600px 300px at 100% 0%, rgba(47, 139, 240, .55), transparent 60%),
        linear-gradient(135deg, var(--navy-900), var(--navy-800));
}
.cta-band::after {
    content: "";
    position: absolute;
    right: 40px; top: 50%;
    width: 220px; height: 220px;
    transform: translateY(-50%);
    background: url("../images/logo-mark.svg") no-repeat center / contain;
    opacity: .12;
}
.cta-band h2 { color: var(--white); font-size: clamp(26px, 3.2vw, 36px); max-width: 640px; }
.cta-band p { color: rgba(255,255,255,.8); max-width: 600px; margin-bottom: 28px; }
.cta-band .actions { display: flex; flex-wrap: wrap; gap: 14px; position: relative; z-index: 1; }

/* ---------- Contact ---------- */
.contact-info { list-style: none; display: grid; gap: 22px; }
.contact-info li { display: flex; gap: 16px; align-items: flex-start; }
.contact-info .icon-box { margin: 0; width: 48px; height: 48px; font-size: 20px; flex-shrink: 0; }
.contact-info h4 { font-size: 16px; margin-bottom: 2px; }
.contact-info p, .contact-info a { margin: 0; font-size: 15px; }
.contact-info .muted { color: var(--muted); font-size: 13.5px; }

.form-card { background: var(--white); border: 1px solid var(--line); border-radius: 20px; padding: 40px 36px; box-shadow: var(--shadow); }
.form-card h3 { font-size: 22px; }
.form-group-bp { margin-bottom: 18px; }
.form-group-bp label { display: block; font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 6px; }
.form-control-bp {
    width: 100%;
    padding: 13px 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    font: inherit;
    font-size: 15px;
    color: var(--ink);
    background: var(--white);
    transition: border-color .2s, box-shadow .2s;
}
.form-control-bp:focus { outline: none; border-color: var(--blue-600); box-shadow: 0 0 0 4px rgba(21, 87, 214, .12); }
textarea.form-control-bp { min-height: 140px; resize: vertical; }
.form-note { font-size: 13.5px; color: var(--muted); margin-top: 14px; }
.form-status { display: none; margin-top: 16px; padding: 14px 16px; border-radius: var(--radius-sm); background: #ECFDF5; color: #065F46; font-size: 14.5px; }
.form-status.show { display: block; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-900); color: rgba(255,255,255,.72); padding-top: 80px; font-size: 15px; }
.site-footer h4 { color: var(--white); font-size: 16px; margin-bottom: 20px; }
.site-footer a { color: rgba(255,255,255,.72); }
.site-footer a:hover { color: var(--white); }
.site-footer .brand-name { color: var(--white); }
.site-footer .brand-sub { color: rgba(255,255,255,.55); }
.footer-about { margin: 20px 0 0; max-width: 320px; }
.footer-links { list-style: none; display: grid; gap: 10px; }
.footer-contact { list-style: none; display: grid; gap: 14px; }
.footer-contact li { display: flex; gap: 12px; }
.footer-contact .fa { color: var(--blue-500); margin-top: 5px; width: 16px; }
.footer-bottom { margin-top: 56px; padding: 22px 0; border-top: 1px solid rgba(255,255,255,.1); font-size: 14px; }
.footer-bottom .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; }

/* ---------- Floating WhatsApp ---------- */
.wa-float {
    position: fixed;
    right: 22px; bottom: 22px;
    z-index: 90;
    width: 58px; height: 58px;
    border-radius: 50%;
    background: var(--whatsapp);
    color: var(--white);
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 30px;
    box-shadow: 0 10px 28px rgba(37, 211, 102, .45);
    transition: transform .2s;
}
.wa-float:hover { color: var(--white); transform: scale(1.08); }
[hidden] { display: none !important; }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
    .hero-visual .hero-mark, .hero-chip { animation: none !important; }
    html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1199.98px) {
    .main-nav a { padding: 8px 9px; font-size: 14px; }
    .header-cta .btn-outline-bp { display: none; }
}
@media (max-width: 991.98px) {
    .nav-toggle { display: inline-flex; }
    .main-nav {
        position: fixed;
        top: var(--header-h); left: 0; right: 0;
        background: var(--white);
        border-top: 1px solid var(--line);
        box-shadow: var(--shadow);
        max-height: 0;
        overflow: hidden;
        transition: max-height .3s ease;
    }
    .nav-open .main-nav { max-height: calc(100vh - var(--header-h)); overflow-y: auto; }
    .main-nav ul { flex-direction: column; align-items: stretch; padding: 12px 16px 20px; gap: 2px; }
    .main-nav a { padding: 12px 14px; font-size: 15.5px; }
    .main-nav a.active { background: var(--sky-100); }
    .main-nav a.active::after { display: none; }
    .header-cta .btn-primary-bp { display: none; }
    .section { padding: 72px 0; }
    .hero { padding: 64px 0 96px; }
    .hero-visual { max-width: 380px; margin-top: 56px; }
    .cta-band { padding: 48px 32px; }
    .cta-band::after { display: none; }
}
@media (max-width: 575.98px) {
    .section { padding: 60px 0; }
    .brand-name { font-size: 18px; }
    .brand img { width: 40px; height: 40px; }
    .hero-chip { font-size: 12.5px; padding: 8px 12px; }
    .hero-chip.c2 { right: 0; }
    .hero-chip.c3 { left: 0; }
    .form-card { padding: 28px 20px; }
    .cta-band { padding: 40px 24px; border-radius: 18px; }
    .hero-actions .btn-bp { width: 100%; }
}