/* ==========================================================================
   PT BAS - Component styles (refined v2). Loaded after Bootstrap + tokens.
   Sections: base · layout · buttons · navbar · hero · stats ·
             cards · industries · why · timeline · cta · contact · footer ·
             floating · animation · responsive
   ========================================================================== */

/* ----- Base ----- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
/* Content protection: no text selection except form fields; images not draggable.
   .bas-selectable re-enables selection (contact info the audience must copy). */
body { -webkit-user-select: none; user-select: none; }
input, textarea, select, .bas-selectable { -webkit-user-select: text; user-select: text; }
img { -webkit-user-drag: none; }
/* Keep certificate scans out of print / Save-as-PDF; the rest stays printable. */
@media print { .bas-cert__img { display: none; } }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--bas-text);
  background: var(--bas-bg);
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--bas-dur) var(--bas-ease), color var(--bas-dur) var(--bas-ease);
}
h1, h2, h3, h4, h5 { font-family: var(--font-head); font-weight: 600; color: var(--bas-text); line-height: 1.15; letter-spacing: -.01em; margin: 0; }
p { margin: 0; }
a { color: var(--bas-primary); text-decoration: none; }
img { max-width: 100%; display: block; }
:where([id]) { scroll-margin-top: calc(var(--bas-header-h) + 24px); }

/* ----- Layout helpers ----- */
.bas-section { padding: 96px 0; }
.bas-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .76rem; font-weight: 600; letter-spacing: .08em;
  color: var(--bas-accent-700); text-transform: uppercase; margin-bottom: 16px;
}
.bas-eyebrow::before { display: none; }
.bas-eyebrow i { font-size: 15px; color: var(--bas-eyebrow-ico); }

/* ---- Glacier upgrade: two-tone headline · glass (dark) · glow · stat icons ---- */
.bas-hl { color: var(--bas-hl-color); }
.bas-cert__img { aspect-ratio: 3 / 4; background-color: #fff; background-repeat: no-repeat; background-position: center; background-size: contain; background-origin: content-box; padding: 8px; pointer-events: none; -webkit-user-select: none; user-select: none; }
.bas-hero__eyebrow::before { display: none; }
.bas-hero__eyebrow i { font-size: 16px; }
.bas-stat__ico { font-size: 20px; color: var(--bas-eyebrow-ico); margin-bottom: 8px; line-height: 1; }

[data-theme="dark"] .bas-card,
[data-theme="dark"] .bas-industry,
[data-theme="dark"] .bas-contact__panel,
[data-theme="dark"] .bas-stats__card {
  background: var(--bas-glass-bg);
  -webkit-backdrop-filter: blur(var(--bas-glass-blur));
  backdrop-filter: blur(var(--bas-glass-blur));
  border: 1px solid var(--bas-glass-border);
  box-shadow: var(--bas-glass-glow);
}
[data-theme="dark"] .bas-card:hover,
[data-theme="dark"] .bas-industry:hover {
  border-color: rgba(125, 211, 252, .35);
  box-shadow: 0 0 0 1px rgba(125,211,252,.14), 0 18px 40px rgba(0,0,0,.5), 0 0 40px rgba(125,211,252,.08);
}
[data-theme="dark"] .bas-card__ico,
[data-theme="dark"] .bas-industry__ico { background: rgba(125, 211, 252, .12); color: var(--bas-ice); }
[data-theme="dark"] .bas-why__ico { background: rgba(125,211,252,.10); color: var(--bas-ice); }
.bas-section-title { font-size: clamp(1.7rem, 3vw, 2.25rem); margin-bottom: 12px; }
.bas-section-lead { color: var(--bas-text-muted); font-size: 1.05rem; max-width: 620px; }
.text-muted-bas { color: var(--bas-text-muted) !important; }

/* ----- Buttons ----- */
.bas-btn {
  font-family: var(--font-body); font-weight: 500; font-size: .95rem; line-height: 1;
  padding: .8rem 1.4rem; border-radius: var(--bas-radius-sm); border: 1px solid transparent;
  display: inline-flex; align-items: center; gap: .5rem; cursor: pointer;
  transition: transform var(--bas-dur) var(--bas-ease), background-color var(--bas-dur) var(--bas-ease), box-shadow var(--bas-dur) var(--bas-ease);
  text-decoration: none; white-space: nowrap; touch-action: manipulation;
}
.bas-btn:hover { transform: translateY(-1px); }
.bas-btn:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(46,124,201,.45); }
.bas-btn--primary { background: var(--bas-primary-bright); color: #fff; }
.bas-btn--primary:hover { background: var(--bas-primary); color: #fff; box-shadow: 0 8px 22px rgba(12,90,166,.28); }
.bas-btn--outline { background: transparent; color: var(--bas-primary); border-color: var(--bas-border); }
.bas-btn--outline:hover { border-color: var(--bas-primary); color: var(--bas-primary); }
.bas-link-arrow { display: inline-flex; align-items: center; gap: 6px; font-weight: 500; font-size: .95rem; color: var(--bas-primary); }
.bas-link-arrow i { transition: transform var(--bas-dur) var(--bas-ease); }
.bas-link-arrow:hover i { transform: translateX(3px); }

/* ----- Navbar ----- */
.bas-skip { position: fixed; top: -60px; left: 12px; z-index: 2000; background: var(--bas-primary); color: #fff; padding: 10px 18px; border-radius: var(--bas-radius-sm); font-weight: 600; text-decoration: none; transition: top .18s var(--bas-ease); }
.bas-skip:focus { top: 12px; }
.bas-header { position: sticky; top: 0; z-index: 1030; }
.bas-nav {
  background: var(--bas-bg); border-bottom: 1px solid transparent;
  transition: box-shadow var(--bas-dur) var(--bas-ease), border-color var(--bas-dur) var(--bas-ease);
  min-height: var(--bas-header-h);
}
.bas-nav.is-scrolled { border-bottom-color: var(--bas-border); box-shadow: 0 4px 20px rgba(14,23,38,.06); }
.bas-nav__inner { display: flex; align-items: center; justify-content: space-between; min-height: var(--bas-header-h); }
.bas-brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.bas-brand__mark { width: 36px; height: 36px; display: inline-flex; align-items: center; justify-content: center; flex: none; }
.bas-brand__mark img { width: 100%; height: 100%; object-fit: contain; }
.bas-brand__name { font-family: var(--font-head); font-weight: 700; font-size: 1rem; color: var(--bas-text); letter-spacing: .01em; line-height: 1.05; }
.bas-brand__sub { display: block; font-family: var(--font-body); font-weight: 400; font-size: .68rem; letter-spacing: .02em; color: var(--bas-text-muted); margin-top: 2px; }
.bas-navlinks { display: flex; align-items: center; gap: 26px; list-style: none; margin: 0; padding: 0; }
.bas-navlinks a { color: var(--bas-text-muted); font-size: .94rem; font-weight: 500; text-decoration: none; padding: 6px 0; position: relative; transition: color var(--bas-dur); }
.bas-navlinks a::after { content: ""; position: absolute; left: 0; bottom: -2px; width: 0; height: 2px; background: var(--bas-accent); transition: width var(--bas-dur) var(--bas-ease); }
.bas-navlinks a:hover, .bas-navlinks a.active { color: var(--bas-text); }
.bas-navlinks a:hover::after, .bas-navlinks a.active::after { width: 100%; }
.bas-nav__tools { display: flex; align-items: center; gap: 14px; }
.bas-iconbtn { background: transparent; border: 1px solid var(--bas-border); color: var(--bas-text-muted); width: 42px; height: 42px; border-radius: var(--bas-radius-sm); display: inline-flex; align-items: center; justify-content: center; cursor: pointer; font-size: 17px; transition: var(--bas-dur); touch-action: manipulation; }
.bas-iconbtn:hover { color: var(--bas-primary); border-color: var(--bas-primary); }
.bas-langswitch { display: inline-flex; border: 1px solid var(--bas-border); border-radius: var(--bas-radius-sm); overflow: hidden; }
.bas-langswitch button { background: transparent; border: none; color: var(--bas-text-muted); font-size: .82rem; font-weight: 500; padding: 10px 12px; cursor: pointer; touch-action: manipulation; }
.bas-langswitch button.active { background: var(--bas-primary); color: #fff; }

/* Nav dropdown (Solusi) */
.bas-has-dropdown { position: relative; }
.bas-has-dropdown > a i { font-size: 10px; transition: transform var(--bas-dur) var(--bas-ease); }
.bas-has-dropdown:hover > a i, .bas-has-dropdown:focus-within > a i { transform: rotate(180deg); }
.bas-dropdown { position: absolute; top: 100%; left: 0; min-width: 210px; list-style: none; margin: 10px 0 0; padding: 8px; background: var(--bas-bg); border: 1px solid var(--bas-border); border-radius: var(--bas-radius-sm); box-shadow: var(--bas-card-shadow-hover); opacity: 0; visibility: hidden; transform: translateY(6px); transition: opacity var(--bas-dur) var(--bas-ease), transform var(--bas-dur) var(--bas-ease), visibility var(--bas-dur); z-index: 1040; }
.bas-has-dropdown:hover .bas-dropdown, .bas-has-dropdown:focus-within .bas-dropdown { opacity: 1; visibility: visible; transform: none; }
.bas-dropdown li a { display: block; padding: 9px 12px; border-radius: 6px; color: var(--bas-text-muted); font-size: .9rem; white-space: nowrap; }
.bas-dropdown li a::after { display: none; }
.bas-dropdown li a:hover, .bas-dropdown li a.active { background: var(--bas-surface); color: var(--bas-text); }
.bas-burger { display: none; }

/* Offcanvas mobile menu */
.bas-offcanvas { --bs-offcanvas-width: min(86vw, 340px); background: var(--bas-bg); color: var(--bas-text); border-left: 1px solid var(--bas-border); }
.bas-offcanvas .offcanvas-header { padding: 14px 16px 14px 20px; border-bottom: 1px solid var(--bas-border); gap: 12px; }
.bas-offcanvas .offcanvas-header .bas-brand { min-width: 0; flex: 1; }
.bas-offcanvas .offcanvas-header .bas-brand__name { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.bas-offcanvas .offcanvas-header .bas-iconbtn { flex: none; }
.bas-offcanvas .offcanvas-body { padding: 14px 14px calc(18px + env(safe-area-inset-bottom, 0px)); }
.bas-offcanvas .bas-navlinks { flex-direction: column; align-items: stretch; gap: 2px; width: 100%; }
.bas-offcanvas .bas-navlinks li { width: 100%; }
.bas-offcanvas .bas-navlinks a {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  font-size: 1rem; min-height: 48px; padding: 10px 12px; width: 100%;
  border-radius: var(--bas-radius-sm); color: var(--bas-text);
  transition: background-color var(--bas-dur) var(--bas-ease), color var(--bas-dur) var(--bas-ease);
}
.bas-offcanvas .bas-navlinks a::after {
  content: "\F285"; font-family: "bootstrap-icons"; position: static;
  width: auto; height: auto; background: none; font-size: 12px; color: var(--bas-gray-400);
}
.bas-offcanvas .bas-navlinks a:hover { background: var(--bas-surface); color: var(--bas-text); }
.bas-offcanvas .bas-navlinks a.active { background: var(--bas-primary-50); color: var(--bas-primary); font-weight: 600; }
.bas-offcanvas .bas-navlinks a.active::after { color: var(--bas-primary); }
[data-theme="dark"] .bas-offcanvas .bas-navlinks a.active { color: var(--bas-accent-700); }
[data-theme="dark"] .bas-offcanvas .bas-navlinks a.active::after { color: var(--bas-accent-700); }
.bas-offcanvas__grouptoggle {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  width: 100%; min-height: 48px; padding: 10px 12px;
  background: transparent; border: none; border-radius: var(--bas-radius-sm);
  font: inherit; font-size: 1rem; color: var(--bas-text); cursor: pointer; text-align: left;
  transition: background-color var(--bas-dur) var(--bas-ease); touch-action: manipulation;
}
.bas-offcanvas__grouptoggle:hover { background: var(--bas-surface); }
.bas-offcanvas__grouptoggle i { font-size: 12px; color: var(--bas-gray-400); transition: transform var(--bas-dur) var(--bas-ease); }
.bas-offcanvas__grouptoggle[aria-expanded="true"] i { transform: rotate(180deg); }
.bas-offcanvas__sub { list-style: none; margin: 2px 0 4px 14px; padding: 0 0 0 10px; display: flex; flex-direction: column; gap: 2px; border-left: 2px solid var(--bas-border); }
.bas-offcanvas .bas-offcanvas__sub a { min-height: 44px; font-size: .95rem; color: var(--bas-text-muted); }
.bas-offcanvas .bas-offcanvas__sub a:hover { color: var(--bas-text); }
.bas-offcanvas .bas-offcanvas__sub a::after { display: none; }
.bas-offcanvas__contact { margin-top: 22px; padding-top: 16px; border-top: 1px solid var(--bas-border); }
.bas-offcanvas__label { font-size: .72rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--bas-text-muted); padding: 0 12px 6px; }
.bas-offcanvas__row { display: flex; align-items: center; gap: 12px; min-height: 44px; padding: 8px 12px; border-radius: var(--bas-radius-sm); color: var(--bas-text); font-size: .92rem; text-decoration: none; }
.bas-offcanvas__row i { color: var(--bas-primary); font-size: 16px; }
[data-theme="dark"] .bas-offcanvas__row i { color: var(--bas-ice); }
.bas-offcanvas__row:hover { background: var(--bas-surface); color: var(--bas-text); }
.bas-offcanvas__foot { display: flex; flex-direction: column; gap: 14px; margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--bas-border); }
.bas-offcanvas__prefs { display: flex; align-items: center; gap: 12px; }
.bas-offcanvas .bas-langswitch { flex: 1; }
.bas-offcanvas .bas-langswitch button { flex: 1; min-height: 44px; font-size: .9rem; }
.bas-offcanvas__prefs .bas-iconbtn { width: 46px; height: 46px; flex: none; }
.bas-offcanvas__foot .bas-btn { min-height: 48px; }

/* ----- Hero ----- */
.bas-hero { background: var(--bas-hero-bg); position: relative; overflow: hidden; }
.bas-hero--img { background-size: cover; background-position: center; }
.bas-hero--img::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(14,23,38,.94) 0%, rgba(14,23,38,.78) 55%, rgba(14,23,38,.55) 100%); }
.bas-hero .container { position: relative; z-index: 1; }
.bas-hero__grid { display: grid; grid-template-columns: minmax(0, 640px); padding: 104px 0 116px; }
.bas-hero__eyebrow { display: inline-flex; align-items: center; gap: 10px; color: var(--bas-accent); font-size: .82rem; font-weight: 500; letter-spacing: .05em; margin-bottom: 18px; }
.bas-hero__eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--bas-accent); }
.bas-hero__title { color: #fff; font-size: clamp(2.1rem, 4.4vw, 3.1rem); line-height: 1.08; margin: 0 0 18px; }
.bas-hero__sub { color: #AEBED2; font-size: 1.05rem; line-height: 1.7; max-width: 460px; margin-bottom: 28px; }
.bas-hero__actions { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.bas-hero__textlink { color: #fff; font-weight: 500; font-size: .98rem; border-bottom: 1px solid rgba(255,255,255,.28); padding-bottom: 2px; display: inline-flex; align-items: center; gap: 6px; }
.bas-hero__textlink:hover { color: #fff; border-color: #fff; }



/* ----- Stats (overlapping float card) ----- */
/* Band shares the next section's surface so the floating card only bridges
   two backgrounds (hero navy -> surface), never a third white strip. */
.bas-statsband { background: var(--bas-surface); }
.bas-stats { position: relative; z-index: 4; margin-top: -46px; }
.bas-stats__card { background: var(--bas-card-bg); border-radius: var(--bas-radius); box-shadow: var(--bas-shadow-float); display: grid; grid-template-columns: repeat(4, 1fr); padding: 24px 10px; }
.bas-stat { text-align: center; padding: 6px 16px; }
.bas-stat + .bas-stat { border-left: 1px solid var(--bas-border); }
.bas-stat__num { font-family: var(--font-head); font-weight: 700; font-size: 2rem; line-height: 1; color: var(--bas-text); }
.bas-stat__num .sfx { color: var(--bas-accent); }
.bas-stat__label { font-size: .82rem; color: var(--bas-text-muted); margin-top: 6px; }

/* ----- Cards (generic soft) ----- */
.bas-card { background: var(--bas-card-bg); border-radius: var(--bas-radius); box-shadow: var(--bas-card-shadow); transition: transform var(--bas-dur) var(--bas-ease), box-shadow var(--bas-dur) var(--bas-ease); height: 100%; overflow: hidden; }
.bas-card:hover { transform: translateY(-4px); box-shadow: var(--bas-card-shadow-hover); }
.bas-card__body { padding: 24px; }
.bas-card__ico { width: 48px; height: 48px; border-radius: 13px; background: var(--bas-accent-tint); color: var(--bas-accent-700); display: inline-flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 16px; }
.bas-card__title { font-size: 1.12rem; margin-bottom: 8px; }
.bas-card__text { color: var(--bas-text-muted); font-size: .93rem; line-height: 1.6; margin-bottom: 14px; }
.bas-card--row .bas-card__body { display: flex; gap: 18px; align-items: flex-start; }
.bas-card--row .bas-card__ico { margin-bottom: 0; }
.bas-card__media { position: relative; aspect-ratio: 16 / 10; background: var(--bas-surface-2); overflow: hidden; }
.bas-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 400ms var(--bas-ease); }
.bas-card:hover .bas-card__media img { transform: scale(1.04); }

/* Tags / badges */
.bas-tag { display: inline-flex; align-items: center; font-size: .73rem; font-weight: 500; padding: 4px 10px; border-radius: var(--bas-radius-pill); background: var(--bas-primary-50); color: var(--bas-primary-700); }
[data-theme="dark"] .bas-tag { color: var(--bas-primary-700); }
.bas-meta { display: flex; flex-wrap: wrap; gap: 14px; color: var(--bas-text-muted); font-size: .82rem; }
.bas-meta i { margin-right: 4px; }

/* Industry card */
.bas-industry { background: var(--bas-card-bg); border-radius: var(--bas-radius); box-shadow: var(--bas-card-shadow); padding: 24px 20px; text-align: center; height: 100%; transition: transform var(--bas-dur) var(--bas-ease), box-shadow var(--bas-dur) var(--bas-ease); }
.bas-industry:hover { transform: translateY(-4px); box-shadow: var(--bas-card-shadow-hover); }
.bas-industry__ico { width: 52px; height: 52px; border-radius: 14px; background: var(--bas-accent-tint); color: var(--bas-accent-700); display: inline-flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 14px; }
.bas-industry__name { font-family: var(--font-head); font-weight: 600; font-size: 1.02rem; color: var(--bas-text); margin-bottom: 6px; }
.bas-industry__text { font-size: .82rem; color: var(--bas-text-muted); line-height: 1.5; }

/* ----- Why us ----- */
.bas-why { background: var(--bas-surface); }
.bas-why__item { display: flex; gap: 16px; }
.bas-why__ico { width: 44px; height: 44px; border-radius: 12px; background: var(--bas-card-bg); color: var(--bas-primary); display: inline-flex; align-items: center; justify-content: center; font-size: 20px; flex: none; box-shadow: var(--bas-card-shadow); }
.bas-why__title { font-family: var(--font-head); font-weight: 600; font-size: 1.05rem; margin-bottom: 5px; color: var(--bas-text); }
.bas-why__text { color: var(--bas-text-muted); font-size: .92rem; line-height: 1.6; }

/* ----- Timeline ----- */
.bas-timeline { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.bas-timeline::before { content: ""; position: absolute; top: 9px; left: 6%; right: 6%; height: 2px; background: var(--bas-border); }
.bas-tl { position: relative; padding-top: 28px; text-align: center; }
.bas-tl::before { content: ""; position: absolute; top: 2px; left: 50%; transform: translateX(-50%); width: 16px; height: 16px; border-radius: 50%; background: var(--bas-bg); border: 3px solid var(--bas-primary); }
.bas-tl__year { font-family: var(--font-head); font-weight: 700; font-size: 1.15rem; color: var(--bas-primary); }
.bas-tl__text { font-size: .85rem; color: var(--bas-text-muted); line-height: 1.5; margin-top: 4px; }

/* ----- Contact preview ----- */
.bas-contact__panel { background: var(--bas-card-bg); border-radius: var(--bas-radius); box-shadow: var(--bas-card-shadow); padding: 32px; }
.bas-contact__panel.h-100 { display: flex; flex-direction: column; }
.bas-contact__panel.h-100 .bas-contact__info { flex: 1; }
form.bas-contact__panel .bas-btn { align-self: flex-start; }
.bas-field { margin-bottom: 16px; }
.bas-field label { display: block; font-size: .8rem; color: var(--bas-text-muted); margin-bottom: 6px; }
.bas-req { color: var(--bas-danger); margin-left: 3px; }
.bas-input, .bas-select, .bas-textarea { width: 100%; border: 1px solid var(--bas-border); background: var(--bas-bg); color: var(--bas-text); border-radius: var(--bas-radius-sm); padding: 11px 13px; font-family: var(--font-body); font-size: .95rem; transition: border-color var(--bas-dur), box-shadow var(--bas-dur); }
.bas-input:focus, .bas-select:focus, .bas-textarea:focus { outline: none; border-color: var(--bas-primary); box-shadow: 0 0 0 3px rgba(46,124,201,.18); }
.bas-textarea { resize: vertical; min-height: 96px; }
.bas-contact__info { display: flex; flex-direction: column; gap: 18px; }
.bas-contact__row { display: flex; gap: 14px; align-items: flex-start; }
.bas-contact__row i { color: var(--bas-primary); font-size: 20px; margin-top: 2px; }
.bas-contact__row b { display: block; font-family: var(--font-head); font-weight: 600; color: var(--bas-text); font-size: .95rem; }
.bas-contact__row span { color: var(--bas-text-muted); font-size: .9rem; }

/* ----- Footer ----- */
.bas-footer { background: var(--bas-surface); color: var(--bas-text-muted); padding: 64px 0 0; border-top: 1px solid var(--bas-border); }
.bas-footer h4 { color: var(--bas-text); font-size: 1rem; margin-bottom: 16px; font-weight: 600; }
.bas-footer a { color: var(--bas-text-muted); text-decoration: none; font-size: .9rem; transition: color var(--bas-dur); }
.bas-footer a:hover { color: var(--bas-primary); }
.bas-footer__links { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.bas-footer__brand .bas-brand__name { color: var(--bas-text); }
.bas-footer__about { color: var(--bas-text-muted); font-size: .9rem; line-height: 1.6; margin: 14px 0; max-width: 280px; }
.bas-footer__contact li { display: flex; align-items: flex-start; gap: 9px; color: var(--bas-text-muted); font-size: .9rem; line-height: 1.55; }
.bas-footer__contact i { color: var(--bas-accent); font-size: 14px; margin-top: 3px; flex: none; }
.bas-footer__bottom { border-top: 1px solid var(--bas-border); margin-top: 48px; padding: 20px 0; font-size: .82rem; color: var(--bas-text-muted); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }

/* ----- Floating actions ----- */
/* z-index sits just below .bas-header (1030): the offcanvas + its backdrop
   live inside the header's stacking context, so the FABs must stay under it
   or they would float above the open mobile menu. */
.bas-fab { position: fixed; right: 22px; z-index: 1029; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; box-shadow: 0 8px 24px rgba(14,23,38,.22); cursor: pointer; transition: transform var(--bas-dur) var(--bas-ease), opacity var(--bas-dur); border: none; }
.bas-fab--wa { bottom: 22px; width: 54px; height: 54px; background: #1FA855; color: #fff; font-size: 26px; }
.bas-fab--wa:hover { transform: scale(1.06); }
.bas-fab--top { bottom: 86px; width: 44px; height: 44px; background: var(--bas-card-bg); color: var(--bas-text); font-size: 20px; border: 1px solid var(--bas-border); opacity: 0; pointer-events: none; }
.bas-fab--top.show { opacity: 1; pointer-events: auto; }

/* ----- Scroll reveal ----- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s var(--bas-ease), transform .6s var(--bas-ease); }
.reveal.is-visible { opacity: 1; transform: none; }

/* ----- Transisi antar halaman (View Transitions API, lintas dokumen) -----
   Opt-in native: pindah DAN kembali (back/forward) jadi cross-fade mulus,
   tanpa JS. Browser tanpa dukungan (mis. Firefox) tetap navigasi normal. */
@view-transition { navigation: auto; }
/* Halaman lama meredup cepat; halaman baru masuk lebih lama sambil naik tipis 10px.
   Durasi baru > lama supaya keduanya tumpang tindih = tidak ada kedip putih. */
::view-transition-old(root) { animation: bas-vt-out 160ms cubic-bezier(.4, 0, 1, 1) both; }
::view-transition-new(root) { animation: bas-vt-in 340ms cubic-bezier(0, 0, .2, 1) both; }
@keyframes bas-vt-out { to { opacity: 0; } }
@keyframes bas-vt-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* ==========================================================================
   LAPISAN IDENTITAS MEREK (2026-07-24)
   Tujuan: situs tidak terlihat generik, TANPA mengubah struktur/HTML.
   Semua lewat token merek, tanpa glassmorphism / gradien ungu / ornamen -
   sesuai gaya "Accessible & Ethical" untuk audiens pemerintah & PDAM.
   Untuk membatalkan: hapus blok ini saja.
   ========================================================================== */

/* 1. Foto di-DUOTONE ke biru merek, bukan overlay abu-abu netral.
   Ini pengungkit terbesar: foto stok jadi terasa "milik BAS", bukan tempelan.
   Alfa sisi kiri dipertahankan (.94) supaya kontras teks tidak turun. */
.bas-hero--img::before {
  background:
    linear-gradient(0deg, rgba(20,184,212,.13) 0%, rgba(20,184,212,0) 42%),
    linear-gradient(115deg, rgba(6,28,54,.95) 0%, rgba(8,38,68,.80) 55%, rgba(10,50,82,.56) 100%);
}

/* 2. ARUS AIR di kaki hero: tiga garis gelombang yang mengalir pelan.
   Motif milik sendiri, bukan stok efek. SVG inline, nol request tambahan. */
.bas-hero--img::after {
  /* Diangkat 96px: di bawahnya nanti ada lengkung air terisi setinggi ~72px. */
  content: ""; position: absolute; left: 0; right: 0; bottom: 96px; height: 190px; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='1200'%20height='190'%20viewBox='0%200%201200%20190'%3E%3Cg%20fill='none'%20stroke='%2314B8D4'%20stroke-width='1.5'%3E%3Cpath%20d='M0%20130%20C200%2098%20400%20162%20600%20130%20S1000%2098%201200%20130'%20stroke-opacity='.40'/%3E%3Cpath%20d='M0%20158%20C220%20126%20420%20190%20620%20158%20S1020%20126%201200%20158'%20stroke-opacity='.24'/%3E%3Cpath%20d='M0%20102%20C180%2076%20380%20132%20580%20102%20S980%2076%201200%20102'%20stroke-opacity='.15'/%3E%3C/g%3E%3C/svg%3E");
  background-repeat: repeat-x; background-position: 0 bottom; background-size: 1200px 190px;
  animation: bas-arus 13s linear infinite;
}
/* 13s = ~92 px/detik: cukup untuk terlihat mengalir, belum sampai mengganggu.
   (Versi 34s sebelumnya hanya 35 px/detik - praktis tidak terlihat bergerak.) */
@keyframes bas-arus { to { background-position: -1200px bottom; } }

/* 2a. LENGKUNG AIR TERISI: hero tidak lagi berakhir sebagai garis lurus dengan
   pita gelap mati di bawahnya. Warna diambil dari token lewat mask, jadi ikut
   berubah di mode terang/gelap tanpa menduplikasi SVG. */
.bas-statsband::after {
  content: ""; position: absolute; left: 0; right: 0; top: -70px; height: 72px; z-index: 0;
  background: var(--bas-surface); pointer-events: none;
  --bas-wave: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='1200'%20height='72'%20viewBox='0%200%201200%2072'%20preserveAspectRatio='none'%3E%3Cpath%20fill='%23fff'%20d='M0%2036%20C220%204%20420%2062%20620%2036%20C820%2010%201000%2050%201200%2030%20L1200%2072%20L0%2072%20Z'/%3E%3C/svg%3E");
  -webkit-mask-image: var(--bas-wave); mask-image: var(--bas-wave);
  -webkit-mask-size: 100% 72px; mask-size: 100% 72px;
  -webkit-mask-repeat: no-repeat; mask-repeat: no-repeat;
  -webkit-mask-position: 0 bottom; mask-position: 0 bottom;
}

/* 2b. TEKSTUR BLUEPRINT pada seksi bernada surface: kisi teknik tipis,
   memberi kesan gambar kerja - bukan latar polos khas template. */
/* Tekstur kisi "blueprint" DIHAPUS 2026-07-24: dinilai terlalu ramai untuk
   arah minimalis. position:relative + z-index container TETAP dipertahankan
   karena dipakai lengkung air (.bas-statsband::after). */
.bas-statsband { position: relative; }
.bas-statsband > .container { position: relative; z-index: 1; }

/* 3. HOVER KARTU: kurung seleksi ala gambar teknik yang mengembang di dua
   sudut. Menggantikan "garis atas tumbuh" & "angkat + bayangan" yang generik.
   Ide kurung mengembang: komponen "Frame Button" di 21st (React/shadcn, tidak
   bisa dipasang di sini) - ditulis ulang jadi CSS murni. */
.bas-card { position: relative; }
/* Kurung sudut & isian gradien pada ikon DIHAPUS 2026-07-24 (terlalu ramai).
   Sorot kini cukup lewat warna garis tepi - satu aksen, tanpa dekorasi. */

/* 3b. MINIMALIS: garis rambut saja - tanpa bayangan, tanpa efek melayang.
   Sorot cukup lewat warna garis tepi (satu aksen). */
.bas-card, .bas-industry, .bas-contact__panel {
  border: 1px solid var(--bas-border);
  box-shadow: none;
}
.bas-card:hover, .bas-industry:hover {
  border-color: var(--bas-primary);
  box-shadow: none;
  transform: none;
}

/* Ubin ikon biru pucat membulat DIHAPUS: itu penanda paling khas template.
   Ikon kini polos, satu warna aksen - sama seperti kartu solusi. */
.bas-card__ico, .bas-industry__ico, .bas-why__ico {
  width: auto; height: auto; border-radius: 0;
  background: none; box-shadow: none;
  color: var(--bas-primary); font-size: 22px;
  margin-bottom: 16px; display: inline-flex;
}
/* Tanpa ubin, ikon harus disejajarkan ke baris pertama judul - bukan
   ke tengah butir (efek samping flex saat tinggi ikon jadi otomatis). */
.bas-why__item { align-items: flex-start; gap: 12px; }
.bas-why__ico { margin-bottom: 0; font-size: 20px; line-height: 1.55; }
[data-theme="dark"] .bas-card__ico,
[data-theme="dark"] .bas-industry__ico,
[data-theme="dark"] .bas-why__ico { background: none; color: var(--bas-accent); }
/* 3c. Foto dalam kartu: sedikit lebih tegas, tepi bawah bergaris aksen halus. */
.bas-card__media { border-bottom: 1px solid var(--bas-border); }

/* 3d. Seksi "Mengapa BAS": kartu statistik menimpa 46px ke atas, jadi
   padding 96px meninggalkan lubang kosong - dirapatkan. Nomor 01-04 dan
   garis atas DIHAPUS 2026-07-24 agar selaras dengan arah minimalis. */
.bas-why { padding-top: 54px; }

/* 3e. INDEKS SOLUSI: entri katalog teknis, bukan kartu pemasaran seragam.
   Nomor urut + spesifikasi berangka memberi hierarki & bahan pindai cepat. */
.bas-solx {
  display: flex; flex-direction: column; height: 100%; text-decoration: none;
  background: var(--bas-card-bg); border: 1px solid var(--bas-border);
  border-radius: var(--bas-radius); padding: 30px 28px 26px;
  transition: border-color var(--bas-dur) var(--bas-ease);
}
.bas-solx:hover { border-color: var(--bas-primary); }
.bas-solx__ico { font-size: 20px; color: var(--bas-primary); margin-bottom: 20px; }
.bas-solx__title { font-size: 1.14rem; line-height: 1.3; letter-spacing: -.01em; color: var(--bas-text); margin: 0 0 6px; }
/* Spesifikasi dibedakan lewat BOBOT huruf, bukan kotak atau warna mencolok. */
.bas-solx__spec { display: block; font-size: .88rem; font-weight: 600; color: var(--bas-text); margin-bottom: 14px; }
.bas-solx__text { color: var(--bas-text-muted); font-size: .92rem; line-height: 1.65; margin: 0 0 20px; }
.bas-solx__go {
  margin-top: auto; display: inline-flex; align-items: center; gap: 7px;
  font-weight: 500; font-size: .9rem; color: var(--bas-primary);
}
.bas-solx__go i { transition: transform 240ms var(--bas-ease); }
.bas-solx:hover .bas-solx__go i { transform: translateX(4px); }
@media (prefers-reduced-motion: reduce) { .bas-solx__go i { transition: none; } }

/* 3f. LEMBAR DATA PROYEK: foto bukti + nomor + pasangan label/nilai.
   Sebahasa dengan indeks solusi supaya kedua blok terbesar terasa satu sistem. */
.bas-projx {
  display: flex; flex-direction: column; height: 100%; overflow: hidden;
  background: var(--bas-card-bg); border: 1px solid var(--bas-border);
  border-radius: var(--bas-radius);
  transition: border-color var(--bas-dur) var(--bas-ease);
}
.bas-projx:hover { border-color: var(--bas-primary); }
.bas-projx__media { aspect-ratio: 16 / 10; overflow: hidden; background: var(--bas-surface-2); }
.bas-projx__media img { width: 100%; height: 100%; object-fit: cover; }
.bas-projx__body { padding: 22px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.bas-projx__sector {
  font-size: .72rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  color: var(--bas-text-muted); margin-bottom: 8px;
}
.bas-projx__title { font-size: 1.05rem; line-height: 1.35; letter-spacing: -.01em; color: var(--bas-text); margin: 0 0 14px; }

/* Satu baris tenang, bukan tabel bergaris. Label tetap ada untuk pembaca
   layar tapi disembunyikan secara visual. */
.bas-projx__specs { margin: auto 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px 10px; }
.bas-projx__row { display: flex; align-items: baseline; gap: 8px; }
.bas-projx__row dt {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0;
}
.bas-projx__row dd { margin: 0; font-size: .87rem; color: var(--bas-text-muted); }
.bas-projx__row + .bas-projx__row::before { content: "·"; color: var(--bas-text-muted); opacity: .55; }

/* 4. Angka statistik: figur tabular + garis aksen = terasa terukur, bukan hiasan. */
.bas-stat__num { font-variant-numeric: tabular-nums; letter-spacing: -.02em; }
.bas-stat__label { position: relative; padding-top: 10px; }
.bas-stat__label::before {
  content: ""; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 22px; height: 2px; background: var(--bas-accent); opacity: .55; border-radius: 2px;
}

/* 5. TIPOGRAFI lebih berani: hero & judul seksi naik kelas, jarak huruf
   dirapatkan supaya Barlow terbaca tegas seperti judul laporan teknik. */
.bas-section-title { letter-spacing: -.02em; font-size: clamp(1.8rem, 3.4vw, 2.6rem); line-height: 1.12; }
.bas-hero__title { font-size: clamp(2.3rem, 5.2vw, 3.7rem); letter-spacing: -.025em; line-height: 1.04; }
.bas-hero__sub { max-width: 520px; font-size: 1.1rem; }

/* ----- Responsive ----- */
@media (max-width: 991.98px) {
  .bas-section { padding: 64px 0; }
  .bas-hero__grid { padding: 64px 0 72px; }
  .bas-stats { margin-top: 1.5rem; }
  .bas-desktop-nav { display: none !important; }
  .bas-burger { display: inline-flex !important; }
}
@media (max-width: 767.98px) {
  .bas-stats__card { grid-template-columns: repeat(2, 1fr); gap: 22px 0; padding: 24px 8px; }
  .bas-stat { padding: 2px 12px; }
  .bas-stat__num { font-size: 1.7rem; }
  .bas-stat:nth-child(3) { border-left: none; }
  .bas-stat:nth-child(odd) { border-left: none; }
  .bas-stat:nth-child(even) { border-left: 1px solid var(--bas-border); }
  .bas-timeline { grid-template-columns: 1fr; gap: 0; }
  .bas-timeline::before { left: 9px; right: auto; top: 0; bottom: 0; width: 2px; height: auto; }
  .bas-tl { text-align: left; padding: 0 0 26px 34px; }
  .bas-tl::before { left: 9px; top: 2px; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .bas-btn:hover, .bas-card:hover, .bas-industry:hover { transform: none; }
  .bas-card::after { transition: none; }
  .bas-hero--img::after { animation: none; }
  ::view-transition-group(*),
  ::view-transition-old(*),
  ::view-transition-new(*) { animation: none !important; }
}