/* ==========================================================================
   One Bridge Technologies — design system
   Midnight navy · electric cobalt · white · subtle cyan
   ========================================================================== */

@font-face {
    font-family: "Plus Jakarta Sans";
    src: url("../fonts/plus-jakarta-sans-latin-wght-normal.woff2") format("woff2-variations"),
         url("../fonts/plus-jakarta-sans-latin-wght-normal.woff2") format("woff2");
    font-weight: 200 800;
    font-style: normal;
    font-display: swap;
}

:root {
    /* Brand */
    --obt-midnight: #050d24;
    --obt-midnight-2: #0a1a44;
    --obt-navy: #0d2260;
    --obt-cobalt: #1f5bff;
    --obt-cobalt-600: #1646d6;
    --obt-cobalt-700: #1238ab;
    --obt-cobalt-050: #eef3ff;
    --obt-cobalt-100: #dde7ff;
    --obt-cyan: #22d3ee;
    --obt-cyan-soft: #8feaff;

    /* Neutrals */
    --obt-ink: #0b1633;
    --obt-body: #3b4868;
    --obt-muted: #5a6784;
    --obt-line: #e2e8f4;
    --obt-surface: #f5f8fe;
    --obt-white: #ffffff;

    /* Effects */
    --obt-gradient: linear-gradient(135deg, #1f5bff 0%, #2b7bff 55%, #22c3ee 100%);
    --obt-gradient-text: linear-gradient(100deg, #8feaff 0%, #5f9dff 55%, #3a74ff 100%);
    --obt-shadow-sm: 0 1px 2px rgba(11, 22, 51, .06), 0 2px 8px rgba(11, 22, 51, .04);
    --obt-shadow: 0 10px 30px -12px rgba(11, 22, 51, .18), 0 2px 6px rgba(11, 22, 51, .04);
    --obt-shadow-lg: 0 24px 60px -24px rgba(13, 34, 96, .35);
    --obt-glow: 0 10px 30px -8px rgba(31, 91, 255, .55);
    --obt-radius-sm: .625rem;
    --obt-radius: 1rem;
    --obt-radius-lg: 1.5rem;
    --obt-ease: cubic-bezier(.2, .7, .2, 1);
    --obt-header-h: 76px;

    /* Bootstrap overrides */
    --bs-body-font-family: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --bs-body-color: var(--obt-body);
    --bs-body-bg: var(--obt-white);
    --bs-link-color: var(--obt-cobalt-600);
    --bs-link-color-rgb: 22, 70, 214;
    --bs-link-hover-color: var(--obt-cobalt-700);
    --bs-link-hover-color-rgb: 18, 56, 171;
    --bs-border-color: var(--obt-line);
    --bs-emphasis-color: var(--obt-ink);
    --bs-focus-ring-color: rgba(31, 91, 255, .35);
}

/* ---------- Base ---------- */
html { scroll-padding-top: calc(var(--obt-header-h) + 16px); }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }

body {
    font-size: 1.0625rem;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    background: var(--obt-white);
}

h1, h2, h3, h4, h5, h6 { color: var(--obt-ink); font-weight: 700; letter-spacing: -.02em; line-height: 1.2; }
p { margin-bottom: 1.1rem; }
img { max-width: 100%; height: auto; }
::selection { background: rgba(31, 91, 255, .18); }
#main:focus { outline: none; }

/* Focus: clear, consistent and visible on light and dark surfaces */
:focus-visible {
    outline: 3px solid var(--obt-cobalt);
    outline-offset: 3px;
    border-radius: 4px;
}
.section-dark :focus-visible, .hero :focus-visible, .site-footer :focus-visible, .site-header :focus-visible,
.page-hero :focus-visible, .cta-panel :focus-visible, .contact-panel :focus-visible {
    outline-color: var(--obt-cyan);
}

.skip-link {
    position: absolute; left: 1rem; top: -100px; z-index: 2000;
    background: var(--obt-white); color: var(--obt-ink); font-weight: 700;
    padding: .75rem 1.25rem; border-radius: var(--obt-radius-sm); box-shadow: var(--obt-shadow);
    transition: top .2s var(--obt-ease);
}
.skip-link:focus { top: 1rem; }

.container { --bs-gutter-x: 2rem; }
/* Keep wide row gutters inside the container padding on phones (prevents horizontal scroll). */
@media (max-width: 767.98px) { .row.g-5, .row.g-xl-5 { --bs-gutter-x: 2rem; } }
body { overflow-x: clip; }
@media (min-width: 1400px) { .container { max-width: 1240px; } }

/* ---------- Buttons ---------- */
.btn {
    --bs-btn-font-weight: 650;
    --bs-btn-padding-x: 1.35rem;
    --bs-btn-padding-y: .72rem;
    --bs-btn-border-radius: 999px;
    letter-spacing: .005em;
    display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
    transition: transform .25s var(--obt-ease), box-shadow .25s var(--obt-ease), background-color .2s, color .2s, border-color .2s;
}
.btn-lg { --bs-btn-padding-x: 1.75rem; --bs-btn-padding-y: .9rem; --bs-btn-font-size: 1.02rem; }
.btn .bi-arrow-right-short { font-size: 1.35em; line-height: 0; transition: transform .25s var(--obt-ease); }
.btn:hover .bi-arrow-right-short { transform: translateX(3px); }

.btn-cta, .btn-primary-obt {
    --bs-btn-color: #fff; --bs-btn-bg: var(--obt-cobalt); --bs-btn-border-color: transparent;
    --bs-btn-hover-color: #fff; --bs-btn-hover-bg: var(--obt-cobalt-600); --bs-btn-hover-border-color: transparent;
    --bs-btn-active-color: #fff; --bs-btn-active-bg: var(--obt-cobalt-700); --bs-btn-active-border-color: transparent;
    --bs-btn-disabled-bg: var(--obt-cobalt); --bs-btn-disabled-color: #fff; --bs-btn-disabled-border-color: transparent;
    background-image: var(--obt-gradient);
    background-size: 160% 100%; background-position: 0 0;
    box-shadow: var(--obt-glow);
}
.btn-cta:hover, .btn-primary-obt:hover { transform: translateY(-2px); background-position: 100% 0; box-shadow: 0 16px 34px -10px rgba(31, 91, 255, .6); }

.btn-ghost-light {
    --bs-btn-color: #fff; --bs-btn-border-color: rgba(255, 255, 255, .28); --bs-btn-bg: rgba(255, 255, 255, .04);
    --bs-btn-hover-color: #fff; --bs-btn-hover-bg: rgba(255, 255, 255, .1); --bs-btn-hover-border-color: rgba(255, 255, 255, .5);
    --bs-btn-active-color: #fff; --bs-btn-active-bg: rgba(255, 255, 255, .14); --bs-btn-active-border-color: rgba(255, 255, 255, .5);
    backdrop-filter: blur(6px);
}
.btn-outline-obt {
    --bs-btn-color: var(--obt-cobalt-600); --bs-btn-border-color: var(--obt-cobalt-100); --bs-btn-bg: var(--obt-white);
    --bs-btn-hover-color: #fff; --bs-btn-hover-bg: var(--obt-cobalt); --bs-btn-hover-border-color: var(--obt-cobalt);
    --bs-btn-active-color: #fff; --bs-btn-active-bg: var(--obt-cobalt-600); --bs-btn-active-border-color: var(--obt-cobalt-600);
    --bs-btn-padding-x: 1.1rem; --bs-btn-padding-y: .55rem; --bs-btn-font-size: .95rem;
}
.btn-outline-obt .bi-box-arrow-up-right { font-size: .8em; }

/* ---------- Header / navigation ---------- */
.site-header {
    position: fixed; inset: 0 0 auto 0; z-index: 1030;
    transition: background-color .3s var(--obt-ease), box-shadow .3s var(--obt-ease), backdrop-filter .3s;
}
.site-header .navbar { min-height: var(--obt-header-h); padding: .6rem 0; }
.site-header.is-scrolled, .site-header.is-open {
    background: rgba(5, 13, 36, .86);
    backdrop-filter: saturate(160%) blur(14px);
    -webkit-backdrop-filter: saturate(160%) blur(14px);
    box-shadow: 0 1px 0 rgba(255, 255, 255, .06), 0 10px 30px -18px rgba(0, 0, 0, .6);
}
.navbar-brand { padding: 0; margin-right: 1.5rem; }
.brand-logo { height: 40px; width: auto; display: block; }
.site-header .nav-link {
    color: rgba(255, 255, 255, .78);
    font-weight: 550; font-size: .95rem;
    padding: .5rem .85rem !important;
    border-radius: 999px;
    position: relative;
    transition: color .2s, background-color .2s;
}
.site-header .nav-link:hover { color: #fff; background: rgba(255, 255, 255, .06); }
.site-header .nav-link.active { color: #fff; }
.site-header .nav-link.active::after {
    content: ""; position: absolute; left: 50%; bottom: .15rem; width: 18px; height: 2px; margin-left: -9px;
    border-radius: 2px; background: var(--obt-cyan);
}
.nav-cta { --bs-btn-padding-y: .6rem; --bs-btn-font-size: .95rem; }

.navbar-toggler { border: 1px solid rgba(255, 255, 255, .22); border-radius: .75rem; padding: .6rem .65rem; display: inline-flex; flex-direction: column; gap: 5px; }
.navbar-toggler:focus { box-shadow: none; }
.toggler-bar { display: block; width: 22px; height: 2px; background: #fff; border-radius: 2px; transition: transform .25s var(--obt-ease), opacity .2s; }
.navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(2) { opacity: 0; }
.navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 1199.98px) {
    .site-header .navbar-collapse { padding: 1rem 0 1.25rem; }
    .site-header .navbar-nav { gap: .15rem; margin-bottom: 1rem; }
    .site-header .nav-link { padding: .7rem 1rem !important; border-radius: .75rem; }
    .site-header .nav-link.active { background: rgba(31, 91, 255, .18); }
    .site-header .nav-link.active::after { display: none; }
    .nav-cta { width: 100%; }
}
@media (max-width: 575.98px) {
    .brand-logo { height: 34px; }
}

/* ---------- Hero ---------- */
.hero {
    position: relative; overflow: hidden; isolation: isolate;
    background: var(--obt-midnight);
    color: rgba(255, 255, 255, .78);
    padding: calc(var(--obt-header-h) + 4.5rem) 0 3rem;
}
.hero-bg, .page-hero-bg {
    position: absolute; inset: 0; z-index: -1;
    background:
        radial-gradient(60% 60% at 78% 42%, rgba(31, 91, 255, .30) 0%, rgba(31, 91, 255, 0) 70%),
        radial-gradient(40% 40% at 12% 10%, rgba(34, 211, 238, .10) 0%, rgba(34, 211, 238, 0) 70%),
        linear-gradient(180deg, #050d24 0%, #081640 100%);
}
.hero-bg::after, .page-hero-bg::after {
    content: ""; position: absolute; inset: 0;
    background-image: linear-gradient(rgba(143, 234, 255, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(143, 234, 255, .045) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse at 60% 40%, #000 20%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at 60% 40%, #000 20%, transparent 75%);
}
.hero-kicker {
    display: inline-flex; align-items: center; gap: .6rem;
    font-size: .85rem; font-weight: 600; letter-spacing: .04em; color: var(--obt-cyan-soft);
    padding: .4rem .9rem; border-radius: 999px; border: 1px solid rgba(143, 234, 255, .22); background: rgba(143, 234, 255, .06);
    margin-bottom: 1.5rem;
}
.kicker-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--obt-cyan); box-shadow: 0 0 0 4px rgba(34, 211, 238, .18); }
.hero-title {
    color: #fff; font-weight: 800; letter-spacing: -.035em; line-height: 1.04;
    font-size: clamp(2.6rem, 6vw, 4.6rem);
    margin-bottom: 1.5rem;
}
.text-gradient {
    background: var(--obt-gradient-text);
    -webkit-background-clip: text; background-clip: text; color: transparent;
    display: inline-block; padding-bottom: .08em;
}
.hero-lead { font-size: clamp(1.05rem, 1.4vw, 1.2rem); max-width: 36rem; color: rgba(255, 255, 255, .78); margin-bottom: 2rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .85rem; margin-bottom: 2rem; }
.hero-capabilities {
    display: flex; flex-wrap: wrap; gap: .35rem .7rem; align-items: center;
    font-size: .9rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: rgba(255, 255, 255, .6); margin: 0;
}
.hero-capabilities span[aria-hidden] { color: var(--obt-cyan); }

/* Bridge illustration */
.bridge-visual { position: relative; max-width: 640px; margin-inline: auto; }
.bridge-svg { width: 100%; height: auto; display: block; filter: drop-shadow(0 30px 60px rgba(31, 91, 255, .25)); }
.bv-chip {
    position: absolute; display: inline-flex; align-items: center; gap: .45rem;
    font-size: .82rem; font-weight: 650; color: #fff; white-space: nowrap;
    padding: .5rem .85rem; border-radius: 999px;
    background: rgba(10, 26, 68, .72); border: 1px solid rgba(143, 234, 255, .22);
    backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 10px 24px -12px rgba(0, 0, 0, .6);
}
.bv-chip i { color: var(--obt-cyan); }
.bv-chip-left { left: 4%; top: 8%; }
.bv-chip-right { right: 2%; top: 4%; }
.bv-chip-bottom { left: 50%; bottom: 2%; transform: translateX(-50%); }
@media (prefers-reduced-motion: no-preference) {
    .bv-chip-left { animation: float 7s ease-in-out infinite; }
    .bv-chip-right { animation: float 7s ease-in-out -3.5s infinite; }
}
@keyframes float { 0%, 100% { translate: 0 0; } 50% { translate: 0 -6px; } }
@media (max-width: 575.98px) {
    .bv-chip { font-size: .72rem; padding: .38rem .65rem; }
    .bv-chip-bottom { white-space: normal; text-align: center; width: max-content; max-width: 90%; }
}

.trust-bar {
    list-style: none; margin: 3.5rem 0 0; padding: 0;
    display: grid; grid-template-columns: repeat(4, 1fr);
    border: 1px solid rgba(255, 255, 255, .08); border-radius: var(--obt-radius-lg);
    background: rgba(255, 255, 255, .03);
    backdrop-filter: blur(8px);
}
.trust-bar li { display: flex; gap: .9rem; align-items: center; padding: 1.35rem 1.5rem; }
.trust-bar li + li { border-left: 1px solid rgba(255, 255, 255, .08); }
.trust-bar i { font-size: 1.5rem; color: var(--obt-cyan); }
.trust-bar strong { display: block; color: #fff; font-size: 1.05rem; line-height: 1.3; }
.trust-bar span { display: block; font-size: .88rem; color: rgba(255, 255, 255, .62); line-height: 1.4; }
@media (max-width: 991.98px) {
    .trust-bar { grid-template-columns: repeat(2, 1fr); }
    .trust-bar li:nth-child(3) { border-left: 0; }
    .trust-bar li:nth-child(n+3) { border-top: 1px solid rgba(255, 255, 255, .08); }
}
@media (max-width: 575.98px) {
    .trust-bar { grid-template-columns: 1fr; }
    .trust-bar li + li { border-left: 0; border-top: 1px solid rgba(255, 255, 255, .08); }
}

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
    position: relative; overflow: hidden; isolation: isolate;
    background: var(--obt-midnight); color: rgba(255, 255, 255, .78);
    padding: calc(var(--obt-header-h) + 4rem) 0 4.5rem;
}
.page-hero::after {
    content: ""; position: absolute; left: -10%; right: -10%; bottom: -1px; height: 90px;
    background: radial-gradient(120% 100% at 50% 100%, rgba(31, 91, 255, .35) 0%, rgba(31, 91, 255, 0) 60%);
    pointer-events: none;
}
.page-title { color: #fff; font-weight: 800; font-size: clamp(2.2rem, 4.5vw, 3.4rem); letter-spacing: -.03em; margin-bottom: 1rem; }
.page-lead { font-size: 1.15rem; max-width: 44rem; margin-bottom: 0; }
.breadcrumb-obt { --bs-breadcrumb-divider-color: rgba(255, 255, 255, .4); --bs-breadcrumb-item-active-color: var(--obt-cyan-soft); font-size: .9rem; font-weight: 600; margin-bottom: 1.25rem; }
.breadcrumb-obt a { color: rgba(255, 255, 255, .7); text-decoration: none; }
.breadcrumb-obt a:hover { color: #fff; text-decoration: underline; }
.page-hero-error { padding-bottom: 6rem; min-height: 70vh; display: flex; align-items: center; }
.error-code { font-size: clamp(4rem, 12vw, 8rem); font-weight: 800; line-height: 1; margin-bottom: .5rem; background: var(--obt-gradient-text); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- Sections ---------- */
.section { padding: clamp(4.5rem, 9vw, 7.5rem) 0; position: relative; }
.section-tint { background: var(--obt-surface); }
.section-head { max-width: 46rem; margin-bottom: 3rem; }
.section-head.text-center { margin-inline: auto; }
.eyebrow {
    display: inline-flex; align-items: center; gap: .6rem;
    font-size: .8rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
    color: var(--obt-cobalt-600); margin-bottom: 1rem;
}
.eyebrow::before { content: ""; width: 24px; height: 2px; border-radius: 2px; background: var(--obt-gradient); }
.eyebrow-light { color: var(--obt-cyan-soft); }
.section-title { font-size: clamp(1.9rem, 3.6vw, 2.75rem); font-weight: 800; letter-spacing: -.03em; margin-bottom: 1.25rem; }
.lead-text { font-size: 1.15rem; color: var(--obt-body); }
.card-title-lg { font-size: 1.2rem; font-weight: 700; margin-bottom: .6rem; }

.icon-tile {
    width: 52px; height: 52px; flex: 0 0 52px; border-radius: 14px;
    display: inline-grid; place-items: center;
    font-size: 1.4rem; color: var(--obt-cobalt-600);
    background: linear-gradient(145deg, var(--obt-cobalt-050), #e3f8fd);
    border: 1px solid var(--obt-cobalt-100);
    margin-bottom: 1.25rem;
    transition: transform .35s var(--obt-ease), background .35s, color .35s;
}

/* About */
.highlight-card {
    background: var(--obt-white); border: 1px solid var(--obt-line); border-radius: var(--obt-radius);
    padding: 2rem; box-shadow: var(--obt-shadow-sm);
    transition: transform .35s var(--obt-ease), box-shadow .35s var(--obt-ease), border-color .35s;
}
.highlight-card:hover { transform: translateY(-4px); box-shadow: var(--obt-shadow); border-color: var(--obt-cobalt-100); }

.journey {
    position: relative; border-radius: var(--obt-radius-lg); padding: 2.5rem;
    background: linear-gradient(160deg, var(--obt-midnight) 0%, var(--obt-navy) 100%);
    color: rgba(255, 255, 255, .8); overflow: hidden; box-shadow: var(--obt-shadow-lg);
}
.journey::before {
    content: ""; position: absolute; inset: auto -20% -60% -20%; height: 120%;
    border-radius: 50%; border-top: 2px solid rgba(143, 234, 255, .35);
    box-shadow: 0 -30px 60px -30px rgba(31, 91, 255, .7) inset;
}
.journey-point { position: relative; display: flex; flex-direction: column; gap: .25rem; padding-left: 1.75rem; }
.journey-point::before { content: ""; position: absolute; left: 0; top: .55rem; width: 12px; height: 12px; border-radius: 50%; background: var(--obt-cobalt); box-shadow: 0 0 0 5px rgba(31, 91, 255, .25); }
.journey-point-now::before { background: var(--obt-cyan); box-shadow: 0 0 0 5px rgba(34, 211, 238, .22); }
.journey-year { font-size: 2rem; font-weight: 800; color: #fff; letter-spacing: -.02em; line-height: 1.1; }
.journey-label { font-size: 1rem; }
.journey-label strong { color: #fff; }
.journey-line { position: relative; margin: .75rem 0 .75rem 5px; padding: 1.25rem 0 1.25rem 1.6rem; border-left: 2px dashed rgba(143, 234, 255, .35); font-size: .9rem; color: rgba(255, 255, 255, .6); }

/* Services */
.service-filters { display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: 2.5rem; }
.filter-btn {
    border: 1px solid var(--obt-line); background: var(--obt-white); color: var(--obt-ink);
    font-weight: 600; font-size: .93rem; padding: .6rem 1.15rem; border-radius: 999px;
    transition: background-color .2s, color .2s, border-color .2s, box-shadow .2s;
}
.filter-btn:hover { border-color: var(--obt-cobalt); color: var(--obt-cobalt-600); }
.filter-btn.active { background: var(--obt-ink); border-color: var(--obt-ink); color: #fff; box-shadow: var(--obt-shadow); }
.service-item { transition: opacity .3s var(--obt-ease), transform .3s var(--obt-ease); }
.service-item.is-hidden { display: none; }
.service-item.is-entering { opacity: 0; transform: translateY(8px); }

.service-card, .product-card {
    position: relative; display: flex; flex-direction: column;
    background: var(--obt-white); border: 1px solid var(--obt-line); border-radius: var(--obt-radius);
    padding: 1.9rem; box-shadow: var(--obt-shadow-sm);
    transition: transform .35s var(--obt-ease), box-shadow .35s var(--obt-ease), border-color .35s;
}
.service-card::before, .product-card::before {
    content: ""; position: absolute; left: 1.9rem; right: 1.9rem; top: -1px; height: 2px;
    background: var(--obt-gradient); border-radius: 2px; transform: scaleX(0); transform-origin: left;
    transition: transform .45s var(--obt-ease);
}
.service-card:hover, .product-card:hover { transform: translateY(-5px); box-shadow: var(--obt-shadow); border-color: var(--obt-cobalt-100); }
.service-card:hover::before, .product-card:hover::before, .service-card:focus-within::before { transform: scaleX(1); }
.service-card:hover .icon-tile { background: var(--obt-gradient); color: #fff; border-color: transparent; }
.service-card .icon-tile { margin-bottom: 0; }
.service-card p { flex-grow: 1; font-size: .98rem; }
.category-tag { font-size: .72rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--obt-muted); background: var(--obt-surface); border: 1px solid var(--obt-line); padding: .3rem .6rem; border-radius: 999px; white-space: nowrap; }
.card-link { font-weight: 650; font-size: .95rem; text-decoration: none; display: inline-flex; align-items: center; gap: .4rem; margin-top: auto; }
.card-link i { transition: transform .25s var(--obt-ease); }
.card-link:hover { text-decoration: underline; text-underline-offset: 4px; }
.card-link:hover i { transform: translateX(4px); }
.service-card:target { border-color: var(--obt-cobalt); box-shadow: 0 0 0 4px rgba(31, 91, 255, .15), var(--obt-shadow); }

/* Why choose us */
@media (min-width: 992px) { .why-intro { position: sticky; top: calc(var(--obt-header-h) + 2rem); } }
.why-grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
@media (max-width: 767.98px) { .why-grid { grid-template-columns: 1fr; } }
.why-item {
    display: flex; gap: 1rem; align-items: flex-start;
    padding: 1.4rem; border-radius: var(--obt-radius); border: 1px solid var(--obt-line); background: var(--obt-white);
    transition: border-color .3s, box-shadow .3s, transform .3s var(--obt-ease);
}
.why-item:hover { border-color: var(--obt-cobalt-100); box-shadow: var(--obt-shadow); transform: translateY(-3px); }
.why-icon { flex: 0 0 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; font-size: 1.2rem; color: #fff; background: var(--obt-gradient); box-shadow: 0 8px 18px -8px rgba(31, 91, 255, .7); }
.why-title { font-size: 1.02rem; font-weight: 700; margin-bottom: .3rem; line-height: 1.35; }
.why-item p { font-size: .93rem; color: var(--obt-muted); }

/* Process (dark) */
.section-dark { background: var(--obt-midnight); color: rgba(255, 255, 255, .72); overflow: hidden; isolation: isolate; }
.section-dark::before {
    content: ""; position: absolute; inset: 0; z-index: -1;
    background: radial-gradient(50% 70% at 85% 0%, rgba(31, 91, 255, .28), transparent 70%), radial-gradient(40% 50% at 0% 100%, rgba(34, 211, 238, .10), transparent 70%);
}
.section-dark .section-title, .section-dark h3 { color: #fff; }
.section-dark .lead-text { color: rgba(255, 255, 255, .72); }
.process-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; position: relative; }
.process-list::before {
    content: ""; position: absolute; left: 2rem; right: 2rem; top: 2.1rem; height: 2px;
    background: linear-gradient(90deg, rgba(31, 91, 255, 0), rgba(31, 91, 255, .7), rgba(34, 211, 238, .7), rgba(34, 211, 238, 0));
}
.process-step {
    position: relative; padding: 1.75rem; border-radius: var(--obt-radius);
    background: rgba(255, 255, 255, .035); border: 1px solid rgba(255, 255, 255, .08);
    transition: background-color .3s, border-color .3s, transform .3s var(--obt-ease);
}
.process-step:hover { background: rgba(255, 255, 255, .06); border-color: rgba(143, 234, 255, .25); transform: translateY(-4px); }
.process-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.process-number { font-size: .85rem; font-weight: 800; letter-spacing: .1em; color: var(--obt-cyan-soft); background: var(--obt-midnight); padding: .25rem .6rem; border: 1px solid rgba(143, 234, 255, .3); border-radius: 999px; position: relative; }
.process-icon { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; font-size: 1.2rem; color: #fff; background: var(--obt-gradient); }
.process-title { font-size: 1.2rem; margin-bottom: .6rem; }
.process-step p { font-size: .95rem; }
@media (max-width: 991.98px) { .process-list { grid-template-columns: repeat(2, 1fr); } .process-list::before { display: none; } }
@media (max-width: 575.98px) { .process-list { grid-template-columns: 1fr; } }

/* Stack */
.stack-grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: .9rem; }
.stack-item {
    display: flex; flex-direction: column; align-items: flex-start; gap: .15rem;
    padding: 1.15rem 1.1rem; border-radius: var(--obt-radius); background: var(--obt-white); border: 1px solid var(--obt-line);
    transition: border-color .3s, box-shadow .3s, transform .3s var(--obt-ease);
}
.stack-item:hover { border-color: var(--obt-cobalt-100); box-shadow: var(--obt-shadow); transform: translateY(-3px); }
.stack-item i { font-size: 1.35rem; color: var(--obt-cobalt); margin-bottom: .45rem; }
.stack-name { font-weight: 700; color: var(--obt-ink); font-size: 1rem; line-height: 1.3; }
.stack-area { font-size: .8rem; color: var(--obt-muted); }
@media (max-width: 767.98px) { .stack-grid { grid-template-columns: repeat(2, 1fr); } }

/* Products */
.product-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 1.4rem; }
.product-icon {
    width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center; font-size: 1.5rem; color: #fff;
    background: linear-gradient(145deg, var(--obt-navy), var(--obt-cobalt));
    box-shadow: 0 10px 24px -10px rgba(13, 34, 96, .7);
}
.product-url { font-size: .88rem; font-weight: 600; color: var(--obt-muted); margin-bottom: .75rem; display: flex; align-items: center; gap: .4rem; }
.product-card p.flex-grow-1 { font-size: .98rem; }
.product-actions { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem; margin-top: .5rem; }
.product-note { font-size: .82rem; color: var(--obt-muted); }
.status-badge {
    display: inline-flex; align-items: center; gap: .45rem;
    font-size: .75rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
    color: #8a4b00; background: #fff4e0; border: 1px solid #ffdca3; padding: .3rem .7rem; border-radius: 999px;
}
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: #e08a00; }
@media (prefers-reduced-motion: no-preference) { .status-dot { animation: pulse 2.2s ease-in-out infinite; } }
@keyframes pulse { 0%, 100% { box-shadow: 0 0 0 0 rgba(224, 138, 0, .45); } 50% { box-shadow: 0 0 0 5px rgba(224, 138, 0, 0); } }

/* Clients */
.client-grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
.client-tile {
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1rem; text-align: center;
    min-height: 180px; padding: 2rem 1.25rem; border-radius: var(--obt-radius); background: var(--obt-white); border: 1px solid var(--obt-line);
    transition: border-color .3s, box-shadow .3s, transform .3s var(--obt-ease);
}
.client-tile:hover { border-color: var(--obt-cobalt-100); box-shadow: var(--obt-shadow); transform: translateY(-3px); }
.client-mark {
    width: 64px; height: 64px; border-radius: 50%; display: grid; place-items: center;
    font-weight: 800; font-size: 1.15rem; letter-spacing: .02em; color: var(--obt-navy);
    background: linear-gradient(var(--obt-white), var(--obt-white)) padding-box, var(--obt-gradient) border-box;
    border: 2px solid transparent;
}
.client-name { font-weight: 700; font-size: 1.08rem; color: var(--obt-ink); letter-spacing: -.01em; }
@media (max-width: 991.98px) { .client-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 400px) { .client-grid { grid-template-columns: 1fr; } }

/* CTA */
.section-cta { padding: 0 0 clamp(4.5rem, 9vw, 7rem); background: linear-gradient(var(--obt-surface) 50%, var(--obt-white) 50%); }
.section-tint + .section-cta { padding-top: 0; }
.section:not(.section-tint) + .section-cta { background: var(--obt-white); }
.cta-panel {
    position: relative; overflow: hidden; isolation: isolate;
    border-radius: var(--obt-radius-lg); padding: clamp(2.25rem, 5vw, 4rem);
    background: linear-gradient(125deg, var(--obt-midnight) 0%, var(--obt-navy) 60%, #123a9e 100%);
    box-shadow: var(--obt-shadow-lg);
}
.cta-arc {
    position: absolute; z-index: -1; left: -10%; right: -10%; top: 82%; height: 260%;
    border-radius: 50%; border-top: 2px solid rgba(143, 234, 255, .45);
    box-shadow: 0 -40px 80px -40px rgba(31, 91, 255, .9) inset;
}
.cta-title { color: #fff; font-weight: 800; font-size: clamp(1.8rem, 3.4vw, 2.6rem); letter-spacing: -.03em; margin-bottom: .9rem; }
.cta-text { color: rgba(255, 255, 255, .78); font-size: 1.1rem; max-width: 40rem; }

/* ---------- Contact ---------- */
.contact-section { background: var(--obt-surface); }
.contact-panel {
    border-radius: var(--obt-radius-lg); padding: 2.25rem;
    background: linear-gradient(160deg, var(--obt-midnight), var(--obt-navy));
    color: rgba(255, 255, 255, .75); box-shadow: var(--obt-shadow-lg);
}
.contact-panel-title { color: #fff; font-size: 1.6rem; font-weight: 800; }
.contact-sub { color: #fff; font-size: .8rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; margin: 2rem 0 .9rem; }
.next-steps ol { padding-left: 1.2rem; margin: 0; }
.next-steps li { margin-bottom: .4rem; }
.next-steps li::marker { color: var(--obt-cyan); font-weight: 700; }

.contact-list { list-style: none; padding: 0; margin: 0; display: grid; gap: .85rem; }
.contact-list li { display: flex; gap: .8rem; align-items: flex-start; }
.contact-list i { font-size: 1.05rem; color: var(--obt-cobalt); margin-top: .2rem; }
.contact-list-dark i { color: var(--obt-cyan); }
.contact-list-dark a { color: #fff; }

.placeholder-chip {
    display: inline-flex; align-items: center; gap: .35rem;
    font-size: .8rem; font-weight: 600; line-height: 1.35;
    padding: .25rem .6rem; border-radius: .45rem;
    color: #7a4a00; background: #fff6e5; border: 1px dashed #f0b44c;
}
.placeholder-chip-dark { color: #ffd898; background: rgba(240, 180, 76, .08); border-color: rgba(240, 180, 76, .45); }

.form-card { background: var(--obt-white); border-radius: var(--obt-radius-lg); padding: clamp(1.75rem, 4vw, 2.75rem); border: 1px solid var(--obt-line); box-shadow: var(--obt-shadow); }
.form-card-title { font-size: 1.6rem; font-weight: 800; margin-bottom: .35rem; }
.form-intro { font-size: .92rem; color: var(--obt-muted); margin-bottom: 1.5rem; }
.req { color: #c02637; font-weight: 700; }
.form-label { font-weight: 650; color: var(--obt-ink); font-size: .93rem; margin-bottom: .4rem; }
.form-control, .form-select {
    border-radius: .75rem; border: 1.5px solid #d3dbea; padding: .75rem .95rem; font-size: 1rem; color: var(--obt-ink);
    transition: border-color .2s, box-shadow .2s;
}
.form-control::placeholder { color: #8290ad; }
.form-control:focus, .form-select:focus { border-color: var(--obt-cobalt); box-shadow: 0 0 0 4px rgba(31, 91, 255, .15); }
.form-control.is-invalid, .form-select.is-invalid { border-color: #c02637; }
.form-control.is-invalid:focus, .form-select.is-invalid:focus { box-shadow: 0 0 0 4px rgba(192, 38, 55, .15); }
.invalid-feedback { color: #b01f30; font-weight: 600; font-size: .86rem; }
.invalid-feedback:not(:empty)::before { content: "\F33A"; font-family: "bootstrap-icons"; margin-right: .35rem; vertical-align: -.1em; }
.form-check-input.is-invalid ~ .invalid-feedback, .is-invalid ~ .invalid-feedback { display: block; }
.form-text { color: var(--obt-muted); font-size: .85rem; gap: 1rem; }
.consent-check { padding: 1rem 1rem 1rem 2.6rem; background: var(--obt-surface); border-radius: .75rem; border: 1px solid var(--obt-line); }
.consent-check .form-check-input { width: 1.2em; height: 1.2em; margin-top: .25em; border: 1.5px solid #9aa7c2; }
.consent-check .form-check-input:checked { background-color: var(--obt-cobalt); border-color: var(--obt-cobalt); }
.consent-check .form-check-label { font-size: .93rem; }
.form-privacy { font-size: .85rem; color: var(--obt-muted); }
.hp-field { position: absolute !important; left: -10000px !important; width: 1px; height: 1px; overflow: hidden; }

.form-alert { display: flex; gap: .9rem; align-items: flex-start; padding: 1.1rem 1.25rem; border-radius: .9rem; margin-bottom: 1.5rem; }
.form-alert > i { font-size: 1.3rem; line-height: 1.3; }
.form-alert strong { display: block; color: inherit; margin-bottom: .15rem; }
.form-alert:focus { outline: none; }
.form-alert:focus-visible { outline: 3px solid var(--obt-cobalt); }
.form-alert-success { background: #e9f9f0; border: 1px solid #a7e3c1; color: #0d5a31; }
.form-alert-error { background: #fdecee; border: 1px solid #f3b4bc; color: #8f1726; }
#enquirySubmit[aria-busy="true"] { pointer-events: none; opacity: .85; }

/* ---------- Legal ---------- */
.legal-body { max-width: 50rem; }
.legal-body h2 { font-size: 1.35rem; margin: 2.4rem 0 .8rem; }
.legal-body ul { padding-left: 1.2rem; }
.legal-body li { margin-bottom: .35rem; }
.legal-meta { font-size: .92rem; color: var(--obt-muted); }
.legal-notice { display: flex; gap: .9rem; padding: 1.1rem 1.25rem; border-radius: .9rem; background: #fff6e5; border: 1px solid #f0cf8f; color: #6b4200; margin-bottom: 1.5rem; }
.legal-notice i { font-size: 1.3rem; color: #c77800; }
.legal-notice strong { color: #5a3700; }
.legal-table { font-size: .95rem; }
.legal-table th { color: var(--obt-ink); }

/* ---------- Footer ---------- */
.site-footer { background: var(--obt-midnight); color: rgba(255, 255, 255, .66); padding: 5rem 0 2rem; font-size: .95rem; position: relative; overflow: hidden; isolation: isolate; }
.site-footer::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(143, 234, 255, .4), transparent); }
.footer-logo { width: 190px; height: auto; }
.footer-text { max-width: 22rem; }
.footer-heading { color: #fff; font-size: .8rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 1.1rem; }
.footer-links { list-style: none; padding: 0; margin: 0; display: grid; gap: .5rem; }
.footer-links a, .footer-legal a { color: rgba(255, 255, 255, .68); text-decoration: none; transition: color .2s; }
.footer-links a:hover, .footer-legal a:hover { color: #fff; text-decoration: underline; text-underline-offset: 3px; }
.footer-more { color: var(--obt-cyan-soft) !important; font-weight: 600; }
.site-footer .contact-list { gap: .6rem; font-size: .9rem; }
.footer-social { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.25rem; }
.social-link { width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center; color: #fff; border: 1px solid rgba(255, 255, 255, .16); transition: background-color .2s, border-color .2s; }
.social-link:hover { background: var(--obt-cobalt); border-color: var(--obt-cobalt); color: #fff; }
.footer-bottom { margin-top: 3.5rem; padding-top: 1.75rem; border-top: 1px solid rgba(255, 255, 255, .08); display: grid; grid-template-columns: 1fr auto; gap: .25rem 2rem; align-items: center; font-size: .88rem; }
.footer-credit { color: rgba(255, 255, 255, .5); grid-column: 1; }
.footer-legal { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; grid-column: 2; grid-row: 1 / span 2; }
@media (max-width: 767.98px) {
    .footer-bottom { grid-template-columns: 1fr; }
    .footer-legal { grid-column: 1; grid-row: auto; margin-top: 1rem; }
}

/* ---------- Motion preferences ---------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
    [data-aos] { opacity: 1 !important; transform: none !important; }
    .bv-pulse { display: none; }
}

/* ---------- Rental Proof product pages ---------- */
.product-hero { position: relative; overflow: hidden; isolation: isolate; background: var(--obt-midnight); color: rgba(255, 255, 255, .78); padding: calc(var(--obt-header-h) + 3.5rem) 0 5rem; }
.product-meta { list-style: none; padding: 0; margin: 1.75rem 0 0; display: flex; flex-wrap: wrap; gap: .6rem 1.5rem; font-size: .92rem; color: rgba(255, 255, 255, .7); }
.product-meta i { color: var(--obt-cyan); margin-right: .35rem; }
.app-frame { position: relative; border-radius: 14px; padding: 8px; background: linear-gradient(145deg, rgba(143, 234, 255, .35), rgba(31, 91, 255, .25)); box-shadow: 0 30px 70px -30px rgba(0, 0, 0, .7); }
.app-frame img { display: block; width: 100%; height: auto; border-radius: 8px; }
.app-frame-light { background: var(--obt-white); border: 1px solid var(--obt-line); box-shadow: var(--obt-shadow); }
.app-frame figcaption { font-size: .9rem; color: var(--obt-muted); padding: .75rem .35rem .15rem; }
.download-card, .price-card { border-radius: var(--obt-radius-lg); padding: clamp(1.75rem, 4vw, 2.5rem); border: 1px solid var(--obt-line); background: var(--obt-white); box-shadow: var(--obt-shadow-sm); }
.price-card { background: linear-gradient(160deg, var(--obt-midnight), var(--obt-navy)); color: rgba(255, 255, 255, .78); border: 0; box-shadow: var(--obt-shadow-lg); }
.price-card a { color: var(--obt-cyan-soft); }
.price-label { font-size: .8rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--obt-cyan-soft); margin-bottom: .5rem; }
.form-card .price-label { color: var(--obt-cobalt-600); }
.price-value { font-size: 3rem; font-weight: 800; color: #fff; letter-spacing: -.03em; line-height: 1; margin-bottom: .4rem; }
.price-value span { font-size: 1rem; font-weight: 600; color: rgba(255, 255, 255, .6); letter-spacing: 0; }
.price-note { font-size: .92rem; margin-bottom: 1.5rem; }
.price-list { list-style: none; padding: 0; margin: 0 0 1.75rem; display: grid; gap: .6rem; }
.price-list li { display: flex; gap: .6rem; align-items: flex-start; }
.price-list i { color: var(--obt-cyan); font-size: 1.15rem; line-height: 1.5; }
.price-foot { font-size: .9rem; margin: 1rem 0 0; text-align: center; }
.download-facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .9rem 1.5rem; margin: 0; }
.download-facts dt { font-size: .75rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--obt-muted); }
.download-facts dd { margin: 0; color: var(--obt-ink); font-weight: 550; word-break: break-word; }
.download-hash { grid-column: 1 / -1; }
.download-hash code { font-size: .78rem; color: var(--obt-body); }
@media (max-width: 575.98px) { .download-facts { grid-template-columns: 1fr; } }
.key-box { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem; padding: 1rem 1.1rem; border-radius: .9rem; background: var(--obt-cobalt-050); border: 1px dashed var(--obt-cobalt); }
.key-box code { flex: 1 1 auto; font-size: clamp(1rem, 3.2vw, 1.4rem); font-weight: 800; letter-spacing: .06em; color: var(--obt-navy); word-break: break-all; }
.form-alert-warn { background: #fff6e5; border: 1px solid #f0cf8f; color: #6b4200; }
.activate-steps { padding-left: 1.2rem; }
.activate-steps li { margin-bottom: .4rem; }
.faq .accordion-item { border-color: var(--obt-line); }
.faq .accordion-button { font-weight: 650; color: var(--obt-ink); }
.faq .accordion-button:not(.collapsed) { background: var(--obt-cobalt-050); color: var(--obt-cobalt-700); box-shadow: none; }
.faq .accordion-button:focus { box-shadow: 0 0 0 4px rgba(31, 91, 255, .15); }