/* ============================================================
   BHL Partners — Typography First
   Display: Archivo (variable width/weight)
   Text:    Newsreader (variable optical size)
   Ink:     charcoal #1B1F21 · light blue #54BEEF · azure #1D87C4
   ============================================================ */

:root {
  --paper: #F7F6F2;
  --ink: #1B1F21;
  --ink-soft: #46504F;
  --blue-light: #54BEEF;
  --blue: #1D87C4;
  --blue-deep: #136A9F;
  --hairline: rgba(27, 31, 33, 0.16);
  --grad: linear-gradient(100deg, var(--blue-light) 0%, var(--blue) 100%);

  --display: "Archivo", "Helvetica Neue", sans-serif;
  --text: "Newsreader", Georgia, serif;

  --gutter: clamp(1.25rem, 5vw, 6rem);
  --measure: 38rem;

  /* Content caps at --page-max and centers on wider screens:
     inline padding grows once the viewport exceeds the cap. */
  --page-max: 85rem;
  --inline-pad: max(var(--gutter), calc((100% - var(--page-max)) / 2));

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--text);
  font-size: 1.125rem;
  line-height: 1.6;
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--blue-light); color: var(--ink); }

a { color: inherit; }

/* ---------- shared type voices ---------- */

.meta {
  font-family: var(--display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.section-mark {
  display: inline-block;
  border-bottom: 2px solid var(--blue-light);
  padding-bottom: 0.6rem;
  margin-bottom: clamp(2.5rem, 6vh, 4.5rem);
}

.grad-word {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.ink { color: var(--blue); }

/* ---------- reveal motion ---------- */

.reveal {
  opacity: 0;
  transform: translateY(1.4rem);
  transition:
    opacity 0.7s var(--ease-out) var(--d, 0s),
    transform 0.7s var(--ease-out) var(--d, 0s);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- progress hairline ---------- */

.progress {
  position: fixed;
  inset: 0 0 auto 0;
  height: 2px;
  z-index: 60;
  background: transparent;
}
.progress span {
  display: block;
  height: 100%;
  width: 100%;
  background: var(--grad);
  transform-origin: 0 50%;
  transform: scaleX(0);
}

/* ---------- header ---------- */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem var(--inline-pad);
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hairline);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
}

.brand-mark {
  width: 1.9rem;
  height: 1.9rem;
  flex: none;
  display: block;
  object-fit: contain;
}

.brand-word {
  font-family: var(--display);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: 0.02em;
}
.brand-word em {
  font-style: normal;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.5vw, 2.2rem);
}

.site-nav a {
  font-family: var(--display);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-soft);
  transition: color 0.2s var(--ease-out), font-weight 0.2s var(--ease-out);
}
.site-nav a:hover { color: var(--ink); font-weight: 800; }

.site-nav .nav-cta {
  color: var(--ink);
  font-weight: 700;
  border-bottom: 2px solid var(--blue-light);
  padding-bottom: 0.15rem;
}
.site-nav .nav-cta:hover { border-image: var(--grad) 1; }

@media (max-width: 720px) {
  .site-nav a:not(.nav-cta) { display: none; }
}

/* ---------- hero ---------- */

.hero {
  min-height: 92svh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 6.5rem var(--inline-pad) clamp(4rem, 10vh, 7rem);
}

.hero .meta { margin-bottom: clamp(1.5rem, 4vh, 3rem); }

.hero-title {
  font-family: var(--display);
  font-weight: 900;
  font-stretch: 112%;
  font-size: clamp(3rem, 8.5vw, 7.5rem);
  line-height: 0.94;
  letter-spacing: -0.03em;
  text-transform: none;
}

.hero-title .line { display: block; }

.hero-foot {
  margin-top: clamp(2rem, 5vh, 4rem);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 3rem;
}

.hero-dek {
  max-width: var(--measure);
  font-size: clamp(1.1rem, 1.5vw, 1.35rem);
  line-height: 1.55;
  color: var(--ink-soft);
}

.hero-scroll {
  flex: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
}
.hero-scroll .rule-v {
  width: 2px;
  height: 3.5rem;
  background: var(--grad);
  animation: pulse-rule 2.4s var(--ease-out) infinite;
}
@keyframes pulse-rule {
  0%, 100% { transform: scaleY(1); transform-origin: top; }
  50% { transform: scaleY(0.55); transform-origin: top; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-scroll .rule-v { animation: none; }
}
@media (max-width: 720px) {
  .hero-scroll { display: none; }
}

/* ---------- thesis ---------- */

.thesis {
  padding: clamp(6rem, 14vh, 11rem) var(--inline-pad);
}

.thesis-title {
  font-family: var(--display);
  font-weight: 800;
  font-stretch: 105%;
  font-size: clamp(1.9rem, 3.8vw, 3.4rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  max-width: 22ch;
  margin-bottom: clamp(2.5rem, 6vh, 4rem);
}

.thesis-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, var(--measure));
  gap: clamp(2.5rem, 7vw, 7rem);
  align-items: center;
}

.thesis-logo {
  justify-self: center;
}
.thesis-logo img {
  display: block;
  width: clamp(9rem, 20vw, 16rem);
  height: auto;
}

.thesis-body {
  max-width: var(--measure);
}

@media (max-width: 860px) {
  .thesis-grid { grid-template-columns: 1fr; }
  .thesis-logo img { width: clamp(7rem, 30vw, 10rem); }
}

.thesis-body .lede {
  font-size: clamp(1.4rem, 2.2vw, 1.8rem);
  font-weight: 500;
  font-style: italic;
  line-height: 1.4;
  margin-bottom: 1.6rem;
  border-left: 3px solid;
  border-image: var(--grad) 1;
  padding-left: 1.4rem;
}

.thesis-body p + p { margin-top: 1.4rem; }
.thesis-body p:not(.lede) { color: var(--ink-soft); }

/* ---------- section shift band (charcoal → blue) ---------- */

.section-shift {
  height: 6px;
  background: linear-gradient(90deg, var(--ink) 0%, var(--blue) 55%, var(--blue-light) 100%);
}

/* ---------- practice ---------- */

.practice {
  padding: clamp(6rem, 14vh, 11rem) var(--inline-pad);
}

.section-title {
  font-family: var(--display);
  font-weight: 800;
  font-stretch: 105%;
  font-size: clamp(1.9rem, 3.8vw, 3.4rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin-bottom: clamp(3rem, 8vh, 5.5rem);
}

.services {
  list-style: none;
  border-top: 1px solid var(--hairline);
}

.service {
  display: grid;
  grid-template-columns: 5rem 1fr 1.2fr;
  gap: clamp(1rem, 3vw, 3rem);
  align-items: baseline;
  padding: clamp(1.6rem, 3.5vh, 2.6rem) 0;
  border-bottom: 1px solid var(--hairline);
}

.service-no {
  font-family: var(--display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--blue);
}

.service-name {
  font-family: var(--display);
  font-weight: 500;
  font-stretch: 108%;
  font-size: clamp(1.35rem, 2.3vw, 2rem);
  letter-spacing: -0.015em;
  line-height: 1.05;
  transition: font-weight 0.25s var(--ease-out), letter-spacing 0.25s var(--ease-out);
}

.service:hover .service-name {
  font-weight: 900;
  letter-spacing: -0.025em;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.service-text {
  max-width: 34rem;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

@media (max-width: 860px) {
  .service { grid-template-columns: 3rem 1fr; }
  .service-text { grid-column: 2; }
}

/* ---------- product (Nexari) ---------- */

.product {
  padding: clamp(6rem, 14vh, 11rem) var(--inline-pad);
  border-top: 1px solid var(--hairline);
}

.product-link {
  text-decoration: none;
}
.product-link:hover {
  border-bottom: 3px solid;
  border-image: var(--grad) 1;
}

.product-dek {
  max-width: 44rem;
  font-size: clamp(1.15rem, 1.6vw, 1.4rem);
  line-height: 1.55;
  color: var(--ink-soft);
  margin: calc(-1 * clamp(1.5rem, 4vh, 2.75rem)) 0 clamp(3rem, 8vh, 5rem);
}

.product-free {
  margin-top: clamp(3rem, 8vh, 5rem);
  max-width: 50rem;
  font-family: var(--display);
  font-weight: 800;
  font-stretch: 105%;
  font-size: clamp(1.6rem, 3.2vw, 2.8rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.product-cta {
  display: inline-block;
  margin-top: clamp(1.5rem, 3vh, 2.2rem);
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid;
  border-image: var(--grad) 1;
  padding-bottom: 0.35rem;
  transition: letter-spacing 0.25s var(--ease-out);
}
.product-cta:hover { letter-spacing: 0.3em; }

/* ---------- method ---------- */

.method {
  padding: clamp(6rem, 14vh, 11rem) var(--inline-pad);
  border-top: 1px solid var(--hairline);
}

.movements {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(2rem, 4vw, 4rem);
}

.movement-no { color: var(--blue); margin-bottom: 1.1rem; }

.movement-name {
  font-family: var(--display);
  font-weight: 800;
  font-stretch: 110%;
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 1.1rem;
}

.movement p:last-child {
  color: var(--ink-soft);
  font-size: 1.02rem;
}

.method-coda {
  margin-top: clamp(3rem, 8vh, 5rem);
  max-width: 44rem;
  font-size: clamp(1.2rem, 1.8vw, 1.5rem);
  line-height: 1.5;
}
.method-coda em {
  background: linear-gradient(transparent 78%, color-mix(in srgb, var(--blue-light) 45%, transparent) 78%);
}

@media (max-width: 860px) {
  .movements { grid-template-columns: 1fr; }
}

/* ---------- proof (dark passage) ---------- */

.proof {
  background: var(--ink);
  color: var(--paper);
  padding: clamp(6rem, 14vh, 11rem) var(--inline-pad);
}

.proof .meta { color: rgba(247, 246, 242, 0.55); }
.proof .section-mark { border-bottom-color: var(--blue-light); }

.pull-quote {
  max-width: 56rem;
  margin-bottom: clamp(4rem, 10vh, 6.5rem);
}

.pull-quote p {
  font-family: var(--text);
  font-weight: 300;
  font-size: clamp(1.45rem, 2.6vw, 2.4rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  text-indent: -0.45em;
}

.pull-quote cite {
  display: block;
  margin-top: 1.6rem;
  font-family: var(--display);
  font-style: normal;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--blue-light);
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(1.5rem, 3vw, 3rem);
  border-top: 1px solid rgba(247, 246, 242, 0.18);
  padding-top: clamp(2rem, 5vh, 3.2rem);
}

.stat dt {
  font-family: var(--display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(247, 246, 242, 0.55);
  margin-bottom: 0.7rem;
}

.stat dd .stat-num {
  font-family: var(--display);
  font-weight: 900;
  font-stretch: 108%;
  font-size: clamp(2.1rem, 3.8vw, 3.4rem);
  line-height: 1;
  letter-spacing: -0.03em;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-variant-numeric: tabular-nums;
}

.proof-note {
  margin-top: clamp(2.5rem, 6vh, 4rem);
  max-width: 38rem;
  font-style: italic;
  color: rgba(247, 246, 242, 0.6);
  font-size: 1rem;
}

@media (max-width: 860px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- cta ---------- */

.cta {
  min-height: 92svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(6rem, 14vh, 10rem) var(--inline-pad);
  background:
    radial-gradient(60rem 30rem at 85% 110%, color-mix(in srgb, var(--blue-light) 14%, transparent), transparent 70%),
    var(--paper);
}

.cta-title {
  font-family: var(--display);
  font-weight: 900;
  font-stretch: 112%;
  font-size: clamp(2.6rem, 7.5vw, 6.5rem);
  line-height: 0.96;
  letter-spacing: -0.03em;
  margin: clamp(1rem, 3vh, 2rem) 0;
}
.cta-title .line { display: block; }

.cta-link {
  text-decoration: none;
  position: relative;
}
.cta-link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0.04em;
  height: 0.06em;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.45s var(--ease-out);
}
.cta-link:hover::after { transform: scaleX(1); }

.cta-dek {
  max-width: var(--measure);
  font-size: clamp(1.1rem, 1.5vw, 1.35rem);
  color: var(--ink-soft);
}

.cta-form {
  margin-top: clamp(2rem, 5vh, 3.2rem);
  max-width: var(--measure);
}

.cta-form label {
  display: block;
  margin-bottom: 0.9rem;
}

.cta-form-row {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.cta-form input[type="email"] {
  flex: 1 1 16rem;
  font-family: var(--text);
  font-size: 1.1rem;
  color: var(--ink);
  background: transparent;
  border: none;
  border-bottom: 2px solid var(--hairline);
  padding: 0.6rem 0.1rem;
  outline: none;
  transition: border-color 0.25s var(--ease-out);
}
.cta-form input[type="email"]::placeholder { color: color-mix(in srgb, var(--ink-soft) 55%, transparent); }
.cta-form input[type="email"]:focus { border-bottom-color: var(--blue); }

.cta-form button {
  flex: none;
  font-family: var(--display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--paper);
  background: var(--ink);
  border: none;
  padding: 0.95rem 1.6rem;
  cursor: pointer;
  transition: background 0.25s var(--ease-out);
}
.cta-form button:hover { background: var(--blue); }

.cta-form-note {
  margin-top: 0.8rem;
  font-size: 0.95rem;
  font-style: italic;
  color: var(--ink-soft);
  min-height: 1.4em;
}

.cta-contacts {
  display: flex;
  align-items: baseline;
  gap: clamp(1.5rem, 4vw, 3rem);
  flex-wrap: wrap;
  margin-top: clamp(1.8rem, 4vh, 2.8rem);
}

.cta-mail {
  display: inline-block;
  width: fit-content;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  letter-spacing: 0.01em;
  text-decoration: none;
  border-bottom: 3px solid;
  border-image: var(--grad) 1;
  padding-bottom: 0.35rem;
  transition: font-weight 0.25s var(--ease-out);
}
.cta-mail:hover { font-weight: 900; }

/* ---------- footer ---------- */

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding: 2.2rem var(--inline-pad);
  border-top: 1px solid var(--hairline);
  color: var(--ink);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}
.footer-brand .brand-mark { width: 1.4rem; height: 1.4rem; }