/* ==========================================================================
   Intera Projects - temporary website
   Brand colours taken from the Intera logo and company brochure
   ========================================================================== */

:root {
  --bronze: #764f26;
  --bronze-light: #b08454;
  --dark: #22180c;
  --taupe: #e0dbd6;
  --taupe-light: #efebe7;
  --white: #ffffff;
  --text: #2b2520;
  --muted: #6b625a;
  --line: #c9c1b8;

  --font-serif: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --font-sans: "Jost", "Helvetica Neue", Arial, sans-serif;

  --container: 1200px;
  --header-height: 76px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--bronze);
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

a:hover {
  color: var(--dark);
}

strong {
  font-weight: 500;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 110px 0;
}

/* Headings ---------------------------------------------------------------- */

.section-title {
  margin: 0 0 32px;
  padding-bottom: 18px;
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  line-height: 1.25;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--bronze);
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 20px;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dark);
}

.lead {
  margin: 0 0 24px;
  font-family: var(--font-serif);
  font-size: 1.6rem;
  line-height: 1.35;
  color: var(--dark);
}

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

.btn {
  display: inline-block;
  padding: 14px 34px;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--bronze);
  border: 1px solid var(--bronze);
}

.btn:hover {
  color: var(--white);
  background: var(--dark);
  border-color: var(--dark);
}

.btn-outline {
  color: var(--bronze);
  background: transparent;
}

.btn-outline:hover {
  color: var(--white);
  background: var(--bronze);
  border-color: var(--bronze);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(118, 79, 38, 0.15);
  backdrop-filter: blur(8px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--dark);
}

.brand img {
  width: 40px;
  height: 40px;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.55rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  line-height: 1;
}

.brand-name small {
  display: block;
  margin-top: 4px;
  font-family: var(--font-sans);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.42em;
  color: var(--bronze);
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 36px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dark);
}

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

.site-nav .nav-cta {
  padding: 10px 22px;
  border: 1px solid var(--bronze);
  color: var(--bronze);
}

.site-nav .nav-cta:hover {
  color: var(--white);
  background: var(--bronze);
}

/* Mobile menu toggle (CSS only) */
.nav-toggle {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.nav-toggle-label {
  display: none;
  position: relative;
  width: 32px;
  height: 32px;
  cursor: pointer;
}

.nav-toggle-label span,
.nav-toggle-label span::before,
.nav-toggle-label span::after {
  position: absolute;
  left: 4px;
  width: 24px;
  height: 1.5px;
  background: var(--dark);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle-label span {
  top: 15px;
}

.nav-toggle-label span::before,
.nav-toggle-label span::after {
  content: "";
  left: 0;
}

.nav-toggle-label span::before {
  top: -8px;
}

.nav-toggle-label span::after {
  top: 8px;
}

/* Hero -------------------------------------------------------------------- */

.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: calc(100vh - var(--header-height));
  min-height: calc(100svh - var(--header-height));
}

.hero-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 64px 48px;
  background: var(--taupe);
}

.hero-brand-inner {
  width: 100%;
  max-width: 420px;
  padding: 56px 0;
  text-align: center;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.hero-logo {
  width: 72%;
  max-width: 280px;
  margin: 0 auto;
}

.hero-tagline {
  margin: 36px 0 0;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.55rem;
  line-height: 1.3;
  color: var(--bronze);
}

.hero-since {
  margin: 16px 0 0;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 40px;
}

.hero-image {
  position: relative;
  overflow: hidden;
}

.hero-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}

/* About ------------------------------------------------------------------- */

.about-grid {
  display: grid;
  grid-template-columns: 5fr 6fr;
  gap: 80px;
  align-items: center;
}

.about-image img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.about-text p {
  margin: 0 0 18px;
  color: var(--muted);
}

.about-text .lead {
  color: var(--dark);
}

.about-text .eyebrow {
  color: var(--dark);
}

/* Expertise --------------------------------------------------------------- */

.expertise {
  padding-top: 0;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.card {
  padding: 18px 18px 28px;
  background: var(--taupe);
}

.card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  filter: grayscale(100%);
  transition: filter 0.4s ease;
}

.card:hover img {
  filter: grayscale(0%);
}

.card h3 {
  margin: 24px 0 14px;
  min-height: 3.4em;
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 400;
  line-height: 1.35;
  color: var(--bronze);
}

.card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text);
}

/* Global ------------------------------------------------------------------ */

.global {
  position: relative;
  padding: 130px 0 110px;
  color: var(--taupe-light);
  text-align: center;
  background: #000 url("../img/global-horizon.jpg") center 30% / cover no-repeat;
}

.global::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.15) 0%, rgba(0, 0, 0, 0.55) 60%, rgba(0, 0, 0, 0.8) 100%);
}

.global-inner {
  position: relative;
}

.global-logo {
  width: 220px;
  margin: 0 auto 48px;
}

.global-statement {
  max-width: 720px;
  margin: 0 auto 40px;
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  line-height: 1.8;
  text-transform: uppercase;
}

.global-cities {
  max-width: 980px;
  margin: 0 auto;
  font-size: 0.88rem;
  line-height: 2;
  color: rgba(239, 235, 231, 0.75);
}

/* Split layout (text + image) --------------------------------------------- */

.split {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 80px;
  align-items: center;
}

.split-image img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

/* Quote */
.quote {
  position: relative;
  margin: 0 0 40px;
  padding-left: 56px;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.45rem;
  line-height: 1.4;
  color: var(--dark);
}

.quote::before {
  content: "\201C";
  position: absolute;
  top: -22px;
  left: 0;
  font-family: var(--font-serif);
  font-style: normal;
  font-size: 5rem;
  line-height: 1;
  color: var(--line);
}

/* What we offer ----------------------------------------------------------- */

.offer {
  background: var(--taupe-light);
}

.offer-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: offer;
}

.offer-list li {
  counter-increment: offer;
  border-bottom: 1px solid var(--line);
}

.offer-list li:first-child {
  border-top: 1px solid var(--line);
}

.offer-list a {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 18px 0;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dark);
}

.offer-list a::before {
  content: counter(offer, decimal-leading-zero);
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--bronze);
}

.offer-list a::after {
  content: "\2192";
  margin-left: auto;
  color: var(--bronze);
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.offer-list a:hover {
  color: var(--bronze);
}

.offer-list a:hover::after {
  opacity: 1;
  transform: translateX(0);
}

/* Services ---------------------------------------------------------------- */

.services {
  padding: 110px 0 0;
}

.service {
  padding: 70px 0;
}

.service + .service {
  border-top: 1px solid var(--taupe);
}

.service-alt .split {
  grid-template-columns: 5fr 7fr;
}

.service-alt .split-text {
  order: 2;
}

.service .split-image img {
  filter: grayscale(100%);
}

.service-number {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-serif);
  font-size: 3.2rem;
  line-height: 1;
  color: var(--taupe);
}

.service h3 {
  margin: 0 0 32px;
  font-family: var(--font-sans);
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dark);
}

.bullets {
  margin: 0;
  padding: 0;
  list-style: none;
}

.bullets li {
  position: relative;
  padding: 10px 0 10px 28px;
  border-bottom: 1px solid var(--taupe-light);
}

.bullets li::before {
  content: "";
  position: absolute;
  top: 1.15em;
  left: 2px;
  width: 7px;
  height: 7px;
  background: var(--bronze);
  transform: rotate(45deg);
}

.note {
  margin: 32px 0 0;
  padding: 20px 24px;
  font-size: 0.95rem;
  background: var(--taupe-light);
  border-left: 2px solid var(--bronze);
}

.note strong {
  color: var(--bronze);
}

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

.contact {
  margin-top: 40px;
  background: var(--taupe);
  text-align: center;
}

.contact-inner {
  max-width: 920px;
}

.contact-symbol {
  width: 56px;
  margin: 0 auto 28px;
}

.contact .section-title {
  display: inline-block;
  padding: 0 0 18px;
}

.contact-intro {
  max-width: 600px;
  margin: 0 auto 56px;
  color: var(--muted);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-bottom: 56px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.contact-item {
  padding: 36px 20px;
}

.contact-item + .contact-item {
  border-left: 1px solid var(--line);
}

.contact-label {
  display: block;
  margin-bottom: 10px;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--bronze);
}

.contact-item a,
.contact-item address {
  font-family: var(--font-serif);
  font-style: normal;
  font-size: 1.3rem;
  line-height: 1.45;
  color: var(--dark);
  overflow-wrap: anywhere;
}

.contact-item a:hover {
  color: var(--bronze);
}

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

.site-footer {
  padding: 72px 0 48px;
  color: rgba(239, 235, 231, 0.7);
  text-align: center;
  background: var(--dark);
}

.footer-logo {
  width: 150px;
  margin: 0 auto;
}

.footer-tagline {
  margin: 24px 0 36px;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--bronze-light);
}

.footer-meta {
  margin: 0;
  padding-top: 28px;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  border-top: 1px solid rgba(239, 235, 231, 0.12);
}

/* Responsive -------------------------------------------------------------- */

@media (max-width: 1080px) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .card h3 {
    min-height: 0;
  }

  .about-grid,
  .split {
    gap: 56px;
  }
}

@media (max-width: 860px) {
  :root {
    --header-height: 68px;
  }

  .section {
    padding: 80px 0;
  }

  /* Mobile navigation */
  .nav-toggle-label {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    max-height: 0;
    overflow: hidden;
    background: var(--white);
    border-bottom: 1px solid rgba(118, 79, 38, 0.15);
    transition: max-height 0.3s ease;
  }

  .site-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 24px 24px;
  }

  .site-nav li a {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid var(--taupe-light);
  }

  .site-nav .nav-cta {
    margin-top: 16px;
    text-align: center;
  }

  .nav-toggle:checked ~ .site-nav {
    max-height: 400px;
  }

  .nav-toggle:checked + .nav-toggle-label span {
    background: transparent;
  }

  .nav-toggle:checked + .nav-toggle-label span::before {
    transform: translateY(8px) rotate(45deg);
  }

  .nav-toggle:checked + .nav-toggle-label span::after {
    transform: translateY(-8px) rotate(-45deg);
  }

  .nav-toggle:focus-visible + .nav-toggle-label {
    outline: 2px solid var(--bronze);
    outline-offset: 4px;
  }

  /* Hero stacks */
  .hero {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .hero-brand {
    padding: 48px 24px;
  }

  .hero-brand-inner {
    padding: 44px 0;
  }

  .hero-image {
    aspect-ratio: 4 / 5;
  }

  /* Stacked layouts */
  .about-grid,
  .split,
  .service-alt .split {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .service-alt .split-text {
    order: 0;
  }

  .about-image img,
  .split-image img {
    aspect-ratio: 4 / 3;
  }

  .services {
    padding-top: 80px;
  }

  .service {
    padding: 56px 0;
  }

  .global {
    padding: 96px 0 80px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .contact-item + .contact-item {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 560px) {
  body {
    font-size: 1rem;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .brand-name {
    font-size: 1.3rem;
  }

  .hero-tagline {
    font-size: 1.35rem;
  }

  .quote {
    padding-left: 40px;
    font-size: 1.25rem;
  }

  .quote::before {
    font-size: 4rem;
    top: -16px;
  }

  .global-logo {
    width: 170px;
  }

  .global-statement {
    font-size: 0.9rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
  }
}