/* OjasYukti — assets/css/style.css
   Custom layer on top of Bootstrap 5.3. No build step, no preprocessor. */

:root {
  --bg: #ffffff;
  --bg-2: #f7f9fa;
  --bg-3: #f2f6f7;
  --ink: #101416;
  --ink-2: #3f4b50;
  --ink-3: #6b787d;
  --line: #e4eaeb;
  --line-2: #d3dcde;
  --accent: #087f8c;
  --accent-2: #14b8a6;
  --accent-soft: #eaf5f6;
  --r: 16px;
  --r-sm: 10px;
  --sh-1: 0 1px 2px rgba(16,20,22,.04), 0 6px 18px -10px rgba(16,20,22,.10);
  --sh-2: 0 2px 6px rgba(16,20,22,.05), 0 22px 44px -22px rgba(16,20,22,.22);
  --ease: cubic-bezier(.22,.61,.36,1);
}

html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-size: 1.0625rem;
  line-height: 1.65;
  letter-spacing: -.005em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3, h4 { letter-spacing: -.022em; font-weight: 600; line-height: 1.18; text-wrap: balance; }
p { text-wrap: pretty; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 5px; }
img, svg { max-width: 100%; height: auto; }

/* ---------- type helpers ---------- */
.display-hero { font-size: clamp(2.3rem, 6.2vw, 4rem); margin: 0; }
.display-page { font-size: clamp(2.1rem, 5.4vw, 3.4rem); margin: 0; }
.display-legal { font-size: clamp(1.9rem, 4.4vw, 2.6rem); margin: 0 0 .5rem; }
.h1-tight { font-size: clamp(1.6rem, 4vw, 2.4rem); }
.accent-text {
  background: linear-gradient(92deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.eyebrow { font-size: .74rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--accent); margin: 0 0 .9rem; }
.kicker { font-size: .74rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-3); margin: 0 0 .6rem; }
.lede { font-size: clamp(1.03rem, 1.9vw, 1.19rem); color: var(--ink-2); max-width: 58ch; }
.text-body-2 { color: var(--ink-2); }
.trust-line { font-size: .9rem; color: var(--ink-3); display: flex; align-items: center; gap: .5rem; }
.trust-line i { color: var(--accent); }
.byline { font-size: .8rem; color: var(--ink-3); margin: 1.5rem 0 0; padding-top: .9rem; border-top: 1px solid var(--line); }
.mini-h { font-size: .74rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); margin-bottom: .4rem; }
.sec-head { max-width: 46rem; margin-bottom: clamp(1.8rem, 4vw, 2.75rem); }
.sec-head h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); margin: 0; }

/* ---------- skip link ---------- */
.skip-link { position: absolute; left: 14px; top: -70px; z-index: 1200; background: var(--ink); color: #fff; padding: .65rem 1.05rem; border-radius: var(--r-sm); text-decoration: none; }
.skip-link:focus { top: 14px; color: #fff; }

/* ---------- scroll progress ---------- */
.scroll-progress { position: fixed; inset: 0 0 auto 0; height: 2px; z-index: 1090; pointer-events: none; }
.scroll-progress span { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width .1s linear; }

/* ---------- header ---------- */
.site-head {
  position: sticky; top: 0; z-index: 1050;
  background: rgba(255,255,255,.72);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
  transition: background .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.site-head.is-scrolled { background: rgba(255,255,255,.9); box-shadow: 0 8px 28px -22px rgba(16,20,22,.45); border-bottom-color: var(--line-2); }
.navbar { min-height: 64px; }
.mark { font-size: 1.12rem; font-weight: 500; letter-spacing: -.02em; color: var(--ink) !important; text-decoration: none; }
.mark span { font-weight: 700; }
.mark:hover { color: var(--accent) !important; }
.navbar-nav .nav-link { color: var(--ink-2); font-size: .95rem; padding: .5rem .75rem; position: relative; }
.navbar-nav .nav-link:hover, .navbar-nav .nav-link:focus-visible { color: var(--ink); }
.navbar-nav .nav-link.active { color: var(--ink); font-weight: 500; }

/* animated underline (nav + footer + inline) */
.ul-anim { position: relative; text-decoration: none; }
.ul-anim::after {
  content: ""; position: absolute; left: .75rem; right: .75rem; bottom: .3rem; height: 1.5px;
  background: var(--accent); transform: scaleX(0); transform-origin: left;
  transition: transform .28s var(--ease);
}
.ul-anim:hover::after, .ul-anim:focus-visible::after { transform: scaleX(1); }
.navbar-nav .nav-link.active::after { transform: scaleX(1); }
.foot-list .ul-anim::after, .legal-toc .ul-anim::after { left: 0; right: 0; bottom: -2px; }

/* burger */
.nav-burger { border: 1px solid var(--line-2); border-radius: var(--r-sm); padding: .5rem .6rem; box-shadow: none; }
.nav-burger:focus { box-shadow: none; }
.burger-lines { display: block; width: 20px; height: 14px; position: relative; }
.burger-lines i { position: absolute; left: 0; width: 100%; height: 1.8px; background: var(--ink); border-radius: 2px; transition: transform .3s var(--ease), opacity .2s var(--ease); }
.burger-lines i:nth-child(1) { top: 0; }
.burger-lines i:nth-child(2) { top: 6px; }
.burger-lines i:nth-child(3) { top: 12px; }
.nav-burger[aria-expanded="true"] .burger-lines i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-burger[aria-expanded="true"] .burger-lines i:nth-child(2) { opacity: 0; }
.nav-burger[aria-expanded="true"] .burger-lines i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- buttons ---------- */
.btn {
  --bs-btn-focus-box-shadow: none;
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: 48px; padding: .7rem 1.25rem; border-radius: var(--r-sm);
  font-size: .95rem; font-weight: 500; border: 1px solid transparent;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
}
.btn .arrow { transition: transform .25s var(--ease); font-size: .95em; }
.btn:hover .arrow { transform: translateX(3px); }
.btn:hover .bi-arrow-up-right.arrow { transform: translate(3px, -3px); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover, .btn-accent:focus-visible { background: #0a6c77; color: #fff; transform: translateY(-2px); box-shadow: 0 10px 22px -12px rgba(8,127,140,.7); }
.btn-outline-ink { background: #fff; color: var(--ink); border-color: var(--line-2); }
.btn-outline-ink:hover, .btn-outline-ink:focus-visible { color: var(--accent); border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--sh-1); }
.btn-light-solid { background: #fff; color: var(--ink); }
.btn-light-solid:hover, .btn-light-solid:focus-visible { background: #fff; color: var(--accent); transform: translateY(-2px); box-shadow: 0 12px 26px -14px rgba(0,0,0,.6); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.32); }
.btn-ghost:hover, .btn-ghost:focus-visible { color: #fff; border-color: rgba(255,255,255,.75); background: rgba(255,255,255,.08); transform: translateY(-2px); }
.btn-sm-tight { min-height: 42px; padding: .5rem 1rem; font-size: .9rem; }

/* ---------- sections & backgrounds ---------- */
.section { padding: clamp(3rem, 7vw, 5.5rem) 0; position: relative; }
.section-tint { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.hero, .page-head { position: relative; overflow: hidden; background: linear-gradient(180deg, #fff 0%, var(--bg-3) 100%); border-bottom: 1px solid var(--line); }
.hero { padding: clamp(3rem, 8vw, 6rem) 0 clamp(3rem, 8vw, 5.5rem); }
.page-head { padding: clamp(3rem, 7vw, 5rem) 0 clamp(2.2rem, 5vw, 3.5rem); }
.legal-head { padding: clamp(2.5rem, 6vw, 4rem) 0 clamp(1.5rem, 3vw, 2.2rem); background: var(--bg-2); border-bottom: 1px solid var(--line); }

.hero-grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(rgba(16,20,22,.075) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: radial-gradient(90% 70% at 50% 20%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(90% 70% at 50% 20%, #000 20%, transparent 78%);
}
.orb { position: absolute; border-radius: 50%; filter: blur(70px); pointer-events: none; opacity: .5; }
.orb-1 { width: 34rem; height: 34rem; top: -14rem; right: -10rem; background: radial-gradient(circle, rgba(20,184,166,.34), transparent 68%); animation: drift 26s ease-in-out infinite; }
.orb-2 { width: 26rem; height: 26rem; bottom: -12rem; left: -8rem; background: radial-gradient(circle, rgba(8,127,140,.26), transparent 68%); animation: drift 32s ease-in-out infinite reverse; }
.orb-a { width: 28rem; height: 28rem; top: -12rem; left: -6rem; background: radial-gradient(circle, rgba(20,184,166,.30), transparent 66%); animation: drift 30s ease-in-out infinite; }
.orb-b { width: 24rem; height: 24rem; bottom: -12rem; right: -6rem; background: radial-gradient(circle, rgba(8,127,140,.38), transparent 66%); animation: drift 36s ease-in-out infinite reverse; }
@keyframes drift {
  0%, 100% { transform: translate3d(0,0,0) scale(1); }
  50% { transform: translate3d(2.5rem, 1.8rem, 0) scale(1.08); }
}

/* ---------- hero flow visual ---------- */
.flow { display: grid; gap: .35rem; justify-items: stretch; }
.flow-card {
  display: flex; align-items: center; gap: .9rem;
  background: rgba(255,255,255,.78); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--line); border-radius: var(--r); padding: .95rem 1.1rem;
  box-shadow: var(--sh-1);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.flow-card:hover { transform: translateY(-4px); box-shadow: var(--sh-2); border-color: var(--accent); }
.flow-card b { display: block; font-size: .98rem; font-weight: 600; letter-spacing: -.01em; }
.flow-card i { font-style: normal; display: block; font-size: .84rem; color: var(--ink-3); }
.flow-ico { flex: 0 0 auto; width: 40px; height: 40px; display: grid; place-items: center; border-radius: 11px; background: var(--accent-soft); color: var(--accent); font-size: 1.1rem; }
.flow-card-accent { border-color: rgba(8,127,140,.35); background: linear-gradient(120deg, rgba(234,245,246,.95), rgba(255,255,255,.85)); }
.flow-link { display: block; width: 1.5px; height: 18px; margin-left: 2.1rem; background: linear-gradient(180deg, var(--line-2), var(--accent)); }
.float-a { animation: float 9s ease-in-out infinite; }
.float-b { animation: float 9s ease-in-out .8s infinite; }
.float-c { animation: float 9s ease-in-out 1.6s infinite; }
.float-d { animation: float 9s ease-in-out 2.4s infinite; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }

/* ---------- cards ---------- */
.card-x {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  padding: 1.5rem; box-shadow: var(--sh-1);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.card-x:hover { transform: translateY(-6px); box-shadow: var(--sh-2); border-color: rgba(8,127,140,.4); }
.card-x .ico {
  display: grid; place-items: center; width: 46px; height: 46px; margin-bottom: 1rem;
  border-radius: 12px; background: var(--accent-soft); color: var(--accent); font-size: 1.25rem;
  transition: transform .35s var(--ease), background .3s var(--ease), color .3s var(--ease);
}
.card-x:hover .ico { transform: translateY(-2px) rotate(-6deg) scale(1.06); background: var(--accent); color: #fff; }
.card-x h3 { font-size: 1.1rem; margin-bottom: .4rem; }
.card-x p { color: var(--ink-2); font-size: .96rem; margin: 0; }

/* timeline */
.timeline { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.1rem; counter-reset: t; }
.timeline li {
  position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  padding: 1.5rem 1.4rem 1.4rem;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.timeline li:hover { transform: translateY(-6px); box-shadow: var(--sh-2); border-color: rgba(8,127,140,.4); }
.tl-num { display: block; font-size: .8rem; font-weight: 700; letter-spacing: .12em; color: var(--accent); margin-bottom: .7rem; font-variant-numeric: tabular-nums; }
.timeline h3 { font-size: 1.03rem; margin-bottom: .35rem; }
.timeline p { color: var(--ink-2); font-size: .94rem; margin: 0; }

/* principles */
.pr-card {
  position: relative; overflow: hidden; background: #fff; border: 1px solid var(--line);
  border-radius: var(--r); padding: 1.6rem 1.5rem; box-shadow: var(--sh-1);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.pr-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  transform: scaleY(0); transform-origin: top; transition: transform .35s var(--ease);
}
.pr-card:hover { transform: translateY(-6px); box-shadow: var(--sh-2); border-color: rgba(8,127,140,.4); }
.pr-card:hover::before { transform: scaleY(1); }
.pr-num { font-size: .78rem; font-weight: 700; letter-spacing: .12em; color: var(--ink-3); font-variant-numeric: tabular-nums; }
.pr-card h3 { font-size: 1.15rem; margin: .6rem 0 .4rem; }
.pr-card p { color: var(--ink-2); font-size: .95rem; margin: 0; opacity: .78; transition: opacity .3s var(--ease); }
.pr-card:hover p { opacity: 1; }