/* ==========================================================================
   Dynasty Distribution Co. Ltd — style.css
   Palette: container-oxide red on kraft paper (see DESIGN.md)
   Type: Big Shoulders Display (headings) + Archivo (body)
   ========================================================================== */

:root {
  --ink: oklch(0.24 0.015 45);
  --ink-soft: oklch(0.32 0.015 45);
  --paper: oklch(0.965 0.008 85);
  --paper-deep: oklch(0.925 0.014 85);
  --oxide: oklch(0.52 0.17 32);
  --oxide-deep: oklch(0.44 0.15 32);
  --gold: oklch(0.78 0.13 85);
  --teal: #35afa4;
  --teal-deep: #26857c;
  --muted: oklch(0.45 0.02 45);
  --line: oklch(0.84 0.02 75);
  --paper-on-ink: oklch(0.94 0.012 85);
  --whatsapp: #1faa53;

  --font-display: "Big Shoulders Display", "Arial Narrow", sans-serif;
  --font-body: "Archivo", "Helvetica Neue", Arial, sans-serif;

  --step-0: clamp(1rem, 0.95rem + 0.2vw, 1.0625rem);
  --step-1: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
  --step-2: clamp(1.65rem, 1.4rem + 1.2vw, 2.25rem);
  --step-3: clamp(2.4rem, 1.9rem + 2.4vw, 3.6rem);
  --step-4: clamp(3.2rem, 2.2rem + 5vw, 5.75rem);

  --space-band: clamp(4rem, 3rem + 5vw, 7.5rem);
  --space-gap: clamp(1.5rem, 1rem + 2vw, 3rem);
  --measure: 68ch;
  --wrap: 1180px;
  --ease-out: cubic-bezier(0.25, 1, 0.5, 1);
}

/* ---------- Base ---------- */

*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.02;
  margin: 0 0 0.5em;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  text-wrap: balance;
}

h1 { font-size: var(--step-4); }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-2); }
h4 { font-size: var(--step-1); letter-spacing: 0.04em; }

p { margin: 0 0 1em; max-width: var(--measure); }
p:last-child { margin-bottom: 0; }

a { color: var(--oxide); text-underline-offset: 3px; }
a:hover { color: var(--oxide-deep); }

ul { margin: 0 0 1em; padding-left: 1.2em; }

::selection { background: var(--oxide); color: var(--paper); }

:focus-visible {
  outline: 3px solid var(--oxide);
  outline-offset: 2px;
}

.wrap {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

/* Kicker: short rule + letterspaced caps label */
.kicker {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--oxide);
  margin: 0 0 1.25rem;
}

.kicker::before {
  content: "";
  width: 2.25rem;
  height: 3px;
  background: currentColor;
  flex: none;
}

.on-ink .kicker { color: var(--teal); }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.6rem;
  border: 2px solid var(--oxide);
  border-radius: 2px;
  background: var(--oxide);
  color: var(--paper);
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background 0.25s var(--ease-out), border-color 0.25s var(--ease-out), color 0.25s var(--ease-out);
}

.btn:hover { background: var(--oxide-deep); border-color: var(--oxide-deep); color: var(--paper); }

.btn--ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn--ghost:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }

.on-ink .btn--ghost { color: var(--paper-on-ink); border-color: var(--paper-on-ink); }
.on-ink .btn--ghost:hover { background: var(--paper-on-ink); color: var(--ink); }

.btn--whatsapp { background: var(--whatsapp); border-color: var(--whatsapp); }
.btn--whatsapp:hover { background: #178a43; border-color: #178a43; color: var(--paper); }

.btn svg { flex: none; }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 4.5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  line-height: 1;
  text-decoration: none;
}

.logo img {
  height: 2.9rem;
  width: auto;
  flex: none;
}

.logo .logo-text {
  display: flex;
  flex-direction: column;
}

.logo strong {
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: 0.045em;
  color: var(--ink);
  text-transform: uppercase;
}

.logo span {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.34em;
  color: var(--teal-deep);
  text-transform: uppercase;
  margin-top: 0.3rem;
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.5vw, 2.25rem);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
  padding: 0.35rem 0;
  border-bottom: 3px solid transparent;
}

.site-nav a:hover { color: var(--oxide); }

.site-nav a[aria-current="page"] {
  color: var(--oxide);
  border-bottom-color: var(--oxide);
}

.nav-toggle {
  display: none;
  border: 2px solid var(--ink);
  border-radius: 2px;
  background: none;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
}

@media (max-width: 760px) {
  .nav-toggle { display: inline-block; }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    display: none;
  }

  .site-nav.open { display: block; }

  .site-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem clamp(1.25rem, 4vw, 2.5rem) 1rem;
  }

  .site-nav a {
    display: block;
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--line);
    font-size: 1.25rem;
  }

  .site-nav a[aria-current="page"] { border-bottom-color: var(--line); }
}

/* ---------- Hero (home) ---------- */

.hero {
  position: relative;
  color: var(--paper-on-ink);
  background: var(--ink);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 65%;
  opacity: 0.55;
}

.hero__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, oklch(0.2 0.02 45 / 0.92) 0%, oklch(0.2 0.02 45 / 0.55) 55%, oklch(0.2 0.02 45 / 0.25) 100%);
}

.hero .wrap {
  position: relative;
  padding-block: clamp(5rem, 4rem + 7vw, 10rem);
  max-width: var(--wrap);
}

.hero h1 {
  max-width: 13ch;
  margin-bottom: 0.35em;
  color: inherit;
}

.hero h1 em {
  font-style: normal;
  color: var(--teal);
}

.hero p {
  font-size: var(--step-1);
  line-height: 1.45;
  max-width: 44ch;
  margin-bottom: 2rem;
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; }

/* Registration strip under hero */
.cred-strip {
  background: var(--ink);
  color: var(--paper-on-ink);
  border-top: 1px solid oklch(0.35 0.02 45);
}

.cred-strip .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2.5rem;
  align-items: baseline;
  padding-block: 1rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.cred-strip .star { color: var(--teal); }

/* ---------- Page hero (interior pages) ---------- */

.page-hero {
  background: var(--ink);
  color: var(--paper-on-ink);
}

.page-hero .wrap {
  padding-block: clamp(3.5rem, 3rem + 4vw, 6.5rem);
}

.page-hero h1 { max-width: 15ch; margin-bottom: 0.2em; }

.page-hero p {
  font-size: var(--step-1);
  line-height: 1.45;
  max-width: 46ch;
  color: oklch(0.82 0.015 85);
}

/* ---------- Bands ---------- */

.band { padding-block: var(--space-band); }
.band--deep { background: var(--paper-deep); }
.band--ink { background: var(--ink); color: var(--paper-on-ink); }
.band--oxide { background: var(--oxide); color: var(--paper); }

.band--ink h2, .band--ink h3, .band--oxide h2 { color: inherit; }

/* Split layout: text + photo */
.split {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: var(--space-gap);
  align-items: center;
}

.split--flip { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.split--flip .split__media { order: -1; }

.split__media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 2px;
}

.split__media--tall img { aspect-ratio: 4 / 4.2; }

@media (max-width: 860px) {
  .split, .split--flip { grid-template-columns: 1fr; }
  .split--flip .split__media { order: 0; }
}

/* ---------- Services manifest (numbered list) ---------- */

.manifest {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--ink);
}

.manifest li { border-bottom: 1px solid var(--line); }

.manifest a {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 5fr) minmax(0, 6fr) 2.5rem;
  gap: 1.25rem;
  align-items: baseline;
  padding: 1.4rem 0.5rem;
  text-decoration: none;
  color: var(--ink);
  transition: background 0.25s var(--ease-out);
}

.manifest a:hover { background: var(--paper-deep); }

.manifest .num {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--teal-deep);
  letter-spacing: 0.06em;
}

.manifest .name {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 700;
  line-height: 1;
  text-transform: uppercase;
}

.manifest .desc {
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.5;
}

.manifest .arrow {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--oxide);
  justify-self: end;
  transition: transform 0.25s var(--ease-out);
}

.manifest a:hover .arrow { transform: translateX(6px); }

@media (max-width: 760px) {
  .manifest a {
    grid-template-columns: 3rem minmax(0, 1fr) 2rem;
    row-gap: 0.35rem;
  }
  .manifest .desc { grid-column: 2 / 3; }
  .manifest .arrow { grid-row: 1; grid-column: 3; }
}

/* ---------- Numbered feature rows (why choose us / goals) ---------- */

.ledger {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 1.5rem + 2vw, 3.5rem) var(--space-gap);
  margin-top: 2.5rem;
}

.ledger article {
  border-top: 2px solid var(--ink);
  padding-top: 1.1rem;
}

.band--ink .ledger article { border-top-color: oklch(0.45 0.02 45); }

.ledger .num {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  color: var(--teal-deep);
  display: block;
  margin-bottom: 0.4rem;
}

.band--ink .ledger .num { color: var(--teal); }

.ledger h3 { font-size: var(--step-1); margin-bottom: 0.4em; }

.ledger p { font-size: 0.98rem; color: var(--muted); }

.band--ink .ledger p { color: oklch(0.78 0.015 85); }

@media (max-width: 700px) {
  .ledger { grid-template-columns: 1fr; }
}

/* ---------- Service sections (services page) ---------- */

.service {
  padding-block: var(--space-band);
  scroll-margin-top: 5.5rem;
}

.service:nth-of-type(even) { background: var(--paper-deep); }

.service__head {
  display: flex;
  align-items: baseline;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.service__head .num {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 600;
  color: var(--teal-deep);
}

.service__head h2 { font-size: var(--step-3); margin: 0; }

.checklist {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0 0;
  columns: 2;
  column-gap: var(--space-gap);
}

.checklist li {
  break-inside: avoid;
  padding: 0.5rem 0 0.5rem 1.6rem;
  position: relative;
  border-bottom: 1px solid var(--line);
  font-size: 0.98rem;
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.95rem;
  width: 0.8rem;
  height: 0.5rem;
  border-left: 3px solid var(--teal-deep);
  border-bottom: 3px solid var(--teal-deep);
  transform: rotate(-45deg);
}

@media (max-width: 640px) {
  .checklist { columns: 1; }
}

/* Anchor jump nav on services page */
.jump-nav {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
}

.jump-nav ul {
  display: flex;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0.9rem 0;
  white-space: nowrap;
}

.jump-nav a {
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--muted);
}

.jump-nav a:hover { color: var(--teal-deep); }

/* ---------- Mission / vision ---------- */

.mv {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-gap);
  margin-top: 2rem;
}

.mv section {
  border-top: 4px solid var(--teal);
  padding-top: 1.25rem;
}

.mv h3 { font-size: var(--step-2); }

.mv p { font-size: var(--step-1); line-height: 1.5; font-weight: 400; }

@media (max-width: 700px) {
  .mv { grid-template-columns: 1fr; }
}

/* ---------- CTA band ---------- */

.cta-band { text-align: left; }

.cta-band h2 { max-width: 16ch; }

.cta-band .btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.cta-band .fineprint {
  margin-top: 1.5rem;
  font-size: 0.95rem;
  color: oklch(0.9 0.02 85 / 0.85);
}

/* ---------- Contact page ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: var(--space-gap);
  align-items: start;
}

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

.contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--ink);
}

.contact-list li {
  border-bottom: 1px solid var(--line);
  padding: 1.2rem 0;
}

.contact-list .label {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal-deep);
  display: block;
  margin-bottom: 0.35rem;
}

.contact-list a { color: var(--ink); text-decoration: none; }
.contact-list a:hover { color: var(--oxide); text-decoration: underline; }

.contact-list .big {
  font-size: var(--step-1);
  font-weight: 600;
}

.map-frame {
  border: 0;
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: 2px;
  filter: saturate(0.85);
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--ink);
  color: var(--paper-on-ink);
  margin-top: 0;
}

.site-footer .wrap {
  padding-block: clamp(3rem, 2.5rem + 2vw, 4.5rem) 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 3fr) minmax(0, 4fr);
  gap: var(--space-gap);
  padding-bottom: 2.5rem;
  border-bottom: 1px solid oklch(0.38 0.02 45);
}

@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr; }
}

.footer-logo {
  display: block;
  width: min(150px, 40vw);
}

.site-footer p { color: oklch(0.78 0.015 85); font-size: 0.95rem; }

.site-footer h4 {
  color: var(--teal);
  font-size: 0.95rem;
  letter-spacing: 0.2em;
  margin-bottom: 0.9rem;
}

.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer ul li { margin-bottom: 0.5rem; }

.site-footer ul a {
  color: var(--paper-on-ink);
  text-decoration: none;
  font-size: 0.98rem;
}

.site-footer ul a:hover { color: var(--teal); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
  justify-content: space-between;
  padding-top: 1.5rem;
  font-size: 0.85rem;
  color: oklch(0.65 0.015 85);
}

/* ---------- WhatsApp float ---------- */

.wa-float {
  position: fixed;
  right: clamp(1rem, 3vw, 1.75rem);
  bottom: clamp(1rem, 3vw, 1.75rem);
  z-index: 60;
  width: 3.6rem;
  height: 3.6rem;
  border-radius: 50%;
  background: var(--whatsapp);
  color: #fff;
  display: grid;
  place-items: center;
  box-shadow: 0 6px 18px oklch(0.2 0.02 45 / 0.35);
  transition: transform 0.25s var(--ease-out), background 0.25s var(--ease-out);
}

.wa-float:hover { transform: translateY(-3px); background: #178a43; color: #fff; }

.wa-float svg { width: 1.9rem; height: 1.9rem; }

/* ---------- Reveal on scroll ---------- */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

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

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

/* Fallback if OKLCH unsupported (older browsers) */
@supports not (color: oklch(0.5 0.1 30)) {
  :root {
    --ink: #2b2622;
    --ink-soft: #3d3730;
    --paper: #f7f3ec;
    --paper-deep: #ece5d8;
    --oxide: #a83a24;
    --oxide-deep: #8a2f1d;
    --gold: #d9a83f;
    --muted: #6b625a;
    --line: #d5ccbd;
    --paper-on-ink: #f2ede4;
  }
}