/* ================================================================
   SHEPHERD SUB SYSTEMS — CONSOLIDATED STYLESHEET
   Replace the existing stylesheet; do not append it to older rules.
   Fonts are loaded directly from assets/ beside the logo.
   ================================================================ */

/* 01 / LOCAL FONTS */
@font-face {
  font-family: "Anton";
  src: url("assets/fonts/Anton-Regular.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Sans";
  src: url("assets/fonts/IBMPlexSans-Regular.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Sans";
  src: url("assets/fonts/IBMPlexSans-Medium.ttf") format("truetype");
  font-style: normal;
  font-weight: 500;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Sans";
  src: url("assets/fonts/IBMPlexSans-SemiBold.ttf") format("truetype");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}

/* 02 / SITE SETTINGS */
:root {
  color-scheme: dark;
  --background: #12212b;
  --surface: #192d38;
  --text: #e7f1f2;
  --muted: #b9cbd1;
  --cyan: #85d4dc;
  --orange: #f28a4e;
  --rule: #85d4dc35;
  --composition-width: 1120px;
  --page-gutter: clamp(20px, 3.3vw, 40px);
  --font-reading: "IBM Plex Sans", Arial, sans-serif;
  --font-display: "Anton", Impact, sans-serif;
}

/* 03 / BASE AND KEYBOARD ACCESS */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 24px;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: var(--font-reading);
  font-size: 18px;
  font-weight: 400;
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 5px;
}

button,
input,
textarea,
select {
  font: inherit;
}

strong,
b {
  font-weight: 600;
}

img {
  max-width: 100%;
}

p {
  margin: 0 0 22px;
}

.wrap {
  width: min(
    var(--composition-width),
    calc(100% - var(--page-gutter) - var(--page-gutter))
  );
  margin-inline: auto;
}

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: 16px;
  top: 12px;
  z-index: 10;
  padding: 12px 18px;
  background: var(--surface);
}

/* 04 / MASTHEAD — Complete logo fills the shared content width. */
.header.wrap {
  padding: 28px 0 0;
}

.header .brand {
  display: block;
  width: 100%;
  margin-inline: auto;
  text-decoration: none;
}

.header .brand picture,
.header .brand img {
  display: block;
  width: 100%;
  height: auto;
}

/* 05 / TYPOGRAPHY
   Anton provides identity for the main statement and section headings.
   IBM Plex Sans handles reading text, service titles and interface text.
*/
h1,
h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-style: normal;
  letter-spacing: normal;
}

h1 {
  margin: 0 0 24px;
}

h2 {
  max-width: 30ch;
  margin: 0 0 30px;
  font-size: clamp(32px, 3.2vw, 40px);
  line-height: 1.22;
  text-wrap: balance;
  overflow-wrap: break-word;
}

h3,
h4,
h5,
h6 {
  font-family: var(--font-reading);
  font-weight: 600;
  letter-spacing: normal;
  line-height: 1.35;
}

h3 {
  margin: 14px 0 12px;
  font-size: 22px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--cyan);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: 1.3px;
}

/* 06 / OPENING — Restrained headline scale beneath the large logo. */
.hero {
  padding-block: 40px 52px;
}

.hero h1 {
  max-width: 28ch;
  font-size: clamp(38px, 4.5vw, 64px);
  line-height: 1.15;
  text-wrap: balance;
  overflow-wrap: break-word;
}

.hero em {
  color: var(--orange);
  font-style: normal;
  white-space: nowrap;
}

.lead {
  max-width: 65ch;
  margin-bottom: 28px;
  font-size: 18px;
  line-height: 1.7;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  min-height: 54px;
  padding: 14px 22px;
  background: var(--orange);
  color: var(--background);
  font-family: var(--font-reading);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  text-decoration: none;
}

.button:hover {
  background: #ffa46e;
}

.button span {
  flex-shrink: 0;
}

.location {
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}

/* 07 / SECTIONS AND APPROACH */
.section {
  padding-block: 52px;
}

#approach {
  border-top: 1px solid var(--rule);
}

.three {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 36px;
  margin-top: 34px;
}

.number {
  color: var(--muted);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 1px;
}

article,
.prose,
.about > div {
  min-width: 0;
  overflow-wrap: break-word;
}

article p:last-child,
.prose p:last-child {
  margin-bottom: 0;
}

/* 08 / CAPABILITIES */
.band {
  background: var(--surface);
  border-block: 1px solid var(--rule);
}

.cap-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px 56px;
  margin-top: 32px;
}

.cap-grid article {
  border-top: 1px solid var(--rule);
  padding-top: 12px;
}

/* 09 / ABOUT */
.about {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
}

.prose {
  max-width: 68ch;
}

/* 10 / CONTACT */
.contact {
  background: var(--surface);
  border-top: 1px solid var(--rule);
}

.contact .wrap > p:not(.eyebrow) {
  max-width: 65ch;
}

.contact-pending {
  border-left: none;
  padding: 0;
  margin-top: 24px;
}

.contact-pending p {
  margin: 0;
}

.contact-pending a {
  color: var(--orange);
  text-decoration: underline;
  text-underline-offset: 4px;
}


/* 11 / FOOTER */
.footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 24px;
  padding-block: 28px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}

/* 12 / TABLETS — Stack reading columns before they become cramped. */
@media (max-width: 900px) {
  .three,
  .about {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .three article {
    border-top: 1px solid var(--rule);
    padding-top: 20px;
  }

  .about {
    gap: 8px;
  }

  .about h2 {
    margin-bottom: 16px;
  }
}

/* 13 / PHONES — Preserve readable copy; scale the display typography. */
@media (max-width: 640px) {
  .header.wrap {
    padding-top: 24px;
  }

  .hero {
    padding-block: 30px 40px;
  }

  .hero h1 {
    font-size: clamp(34px, 8.5vw, 48px);
    line-height: 1.18;
  }

  .section {
    padding-block: 40px;
  }

  h2 {
    font-size: 32px;
    line-height: 1.24;
    margin-bottom: 26px;
  }

  h3 {
    font-size: 21px;
  }

  .eyebrow {
    letter-spacing: 1px;
  }

  .three {
    margin-top: 26px;
  }

  .cap-grid {
    grid-template-columns: 1fr;
    gap: 24px;
    margin-top: 26px;
  }

  .button {
    width: 100%;
  }

  .footer {
    flex-direction: column;
    gap: 8px;
  }
}

/* 14 / REDUCED MOTION AND HIGH-CONTRAST PREFERENCES */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

@media (forced-colors: active) {
  .button {
    border: 1px solid ButtonText;
  }
}

/* Editorial hierarchy: original masthead, geometry and dark palette retained. */
.hero .lead { margin-bottom: 18px; }
.hero-context { max-width: 65ch; margin-bottom: 28px; }
.working-principle { color: var(--text); font-weight: 500; }
.contact-pending a { overflow-wrap: anywhere; }

/* Light palette follows the supplied light logo. */
@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --background: #e8eff0;
    --surface: #cbdfe1;
    --text: #063f4a;
    --muted: #405d65;
    --cyan: #063f4a;
    --orange: #d95f20;
    --rule: #063f4a40;
  }
  .button { background: #063f4a; color: #ffffff; }
  .button span { color: #ffa46e; }
  .button:hover { background: #0b5661; }
  .hero em, .number { color: #b64a16; }
  .contact { background: #063f4a; color: #edf5f4; border-top-color: #063f4a; }
  .contact .eyebrow { color: #85d4dc; }
  .contact-pending a { color: #ffa46e; }
  .contact a:focus-visible { outline-color: #ffa46e; }
}