/* ==========================================================================
   Opotus: single stylesheet
   Design tokens taken from the Opotus brand board (logo, colours, fonts).
   Everything visual derives from :root, so future brand tweaks are a
   one-block change.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Jost:wght@300;400;500;600&family=DM+Sans:wght@300;400;500;600;700&family=Instrument+Sans:wght@400;500;600&display=swap');

/* ---- Minimal reset ---- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

a {
  color: inherit;
}

/* ---- Design tokens ----
   Palette is deliberately narrow: coral, gold (sampled from the logo
   file itself, #F2B760), white, and an off-black slate. No brown/tan. */
:root {
  --color-ink: #1a1c1f;
  --color-ink-soft: #5b6169;
  --color-bg: #ffffff;
  --color-surface: #ffffff;
  --color-coral: #ff6f61;
  --color-coral-dark: #d85e52;
  --color-gold: #f2b760;
  --color-gold-dark: #c6964f;
  --color-accent: var(--color-coral);
  --color-accent-dark: var(--color-coral-dark);
  --color-accent-soft: #fff1f4;
  --color-line: #e7e7ea;
  --color-footer: var(--color-ink);
  --color-footer-ink: #b7bbc1;

  --font-display: 'Jost', sans-serif;
  --font-heading: var(--font-display);
  --font-body: 'DM Sans', 'Segoe UI', sans-serif;
  --font-label: 'Instrument Sans', 'Segoe UI', sans-serif;

  --max-width: 1100px;
  --space-s: clamp(0.75rem, 2vw, 1rem);
  --space-m: clamp(1.5rem, 4vw, 2.5rem);
  --space-l: clamp(3rem, 8vw, 5.5rem);
  --radius: 6px;
}

/* ---- Base ---- */
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: clamp(1rem, 0.95rem + 0.25vw, 1.0625rem);
  line-height: 1.65;
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

h1,
h2 {
  font-family: var(--font-heading);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--color-ink);
}

h3 {
  font-family: var(--font-body);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-ink);
}

h1 {
  font-size: clamp(2.4rem, 1.7rem + 3.4vw, 4rem);
}

h2 {
  font-size: clamp(1.8rem, 1.4rem + 1.8vw, 2.6rem);
}

h3 {
  font-size: clamp(1.1rem, 1.02rem + 0.4vw, 1.3rem);
}

p {
  color: var(--color-ink-soft);
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-m);
}

.section {
  padding: var(--space-l) 0;
}

.section--tint {
  background: var(--color-accent-soft);
}

.section__kicker {
  display: block;
  font-family: var(--font-label);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-coral);
  margin-bottom: 0.75rem;
}

/* ---- Wordmark (logo lockup, text-based per brand board) ---- */
.wordmark {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.03em;
  color: var(--color-ink);
  text-decoration: none;
}

.wordmark--light {
  color: var(--color-surface);
}

.wordmark__mid {
  color: var(--color-coral);
}

.wordmark__dot {
  color: var(--color-gold);
}

.dot-gold {
  color: var(--color-gold);
}

.section__title {
  margin-bottom: var(--space-s);
}

.section__intro {
  max-width: 46rem;
  margin-bottom: var(--space-m);
}

.divider {
  width: 3.5rem;
  height: 2px;
  background: var(--color-gold);
  border: none;
  margin: 1.25rem 0;
}

.divider--center {
  margin-left: auto;
  margin-right: auto;
}

/* ---- Buttons ---- */
.button {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  padding: 0.8rem 1.8rem;
  border-radius: var(--radius);
  border: 1.5px solid var(--color-accent);
  transition: background 0.25s ease, color 0.25s ease;
  cursor: pointer;
}

.button--solid {
  background: var(--color-accent);
  color: var(--color-ink);
}

.button--solid:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: var(--color-surface);
}

.button--ghost {
  background: transparent;
  color: var(--color-accent);
}

.button--ghost:hover {
  background: var(--color-accent);
  color: var(--color-ink);
}

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: box-shadow 0.3s ease;
}

.nav--scrolled,
.nav--open {
  box-shadow: 0 1px 0 var(--color-line);
}

.nav__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.9rem var(--space-m);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav__brand {
  font-size: 1.6rem;
}

.nav__brand-logo {
  height: 2.2rem;
  width: auto;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  list-style: none;
}

.nav__link {
  font-size: 0.92rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--color-ink-soft);
  transition: color 0.2s ease;
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-accent);
}

.nav__lang {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-label);
  font-size: 0.85rem;
  color: var(--color-ink-soft);
}

.nav__lang-btn {
  background: none;
  border: none;
  font: inherit;
  font-weight: 500;
  color: var(--color-ink-soft);
  cursor: pointer;
  padding: 0.15rem 0.2rem;
}

.nav__lang-btn--active {
  color: var(--color-accent);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
}

.nav__toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-ink);
  margin: 5px 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* ---- Hero (homepage): dark ink, near-full-width logo as the centrepiece ---- */
.hero {
  padding: calc(var(--space-l) + 1rem) 0 var(--space-l);
  background: var(--color-ink);
  text-align: center;
}

.hero__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.hero__brand-logo {
  width: clamp(240px, 55vw, 640px);
  height: auto;
  aspect-ratio: 1 / 1;
}

.hero__brand .wordmark {
  font-size: clamp(2.5rem, 2rem + 3vw, 4.5rem);
}

.hero h1 {
  color: var(--color-surface);
  font-family: var(--font-body);
  font-weight: 400;
  font-size: clamp(1.1rem, 1rem + 0.6vw, 1.4rem);
  line-height: 1.5;
  letter-spacing: 0.01em;
  max-width: 34rem;
  margin-bottom: 2rem;
}

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

/* ---- Page hero (inner pages) ---- */
.page-hero {
  padding: calc(var(--space-l) + 3rem) 0 var(--space-m);
  background: linear-gradient(180deg, var(--color-accent-soft) 0%, var(--color-bg) 100%);
}

.page-hero__intro {
  max-width: 44rem;
  margin-top: 1rem;
  font-size: 1.1rem;
}

/* ---- Service cards ---- */
.services {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-m);
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.service-card:hover {
  box-shadow: 0 10px 30px rgba(26, 28, 31, 0.08);
  transform: translateY(-3px);
}

.service-card__icon {
  width: 2.4rem;
  height: 2.4rem;
  color: var(--color-gold);
}

.service-card__text {
  flex: 1;
}

.service-card__link {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--color-accent);
  text-decoration: none;
}

.service-card__link:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---- Credibility strip ---- */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-m);
  text-align: center;
}

.stats__number {
  font-family: var(--font-heading);
  font-size: clamp(1.9rem, 1.5rem + 2vw, 2.8rem);
  color: var(--color-gold);
}

.stats__label {
  font-size: 0.92rem;
}

/* ---- Feature / offering lists ---- */
.offerings {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-m);
}

.offering h3 {
  margin-bottom: 0.5rem;
}

/* ---- Process steps ---- */
.steps {
  list-style: none;
  counter-reset: step;
  display: grid;
  gap: 1.5rem;
  max-width: 44rem;
}

.steps__item {
  counter-increment: step;
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.steps__item::before {
  content: counter(step);
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--color-gold);
  border: 1.5px solid var(--color-gold);
  border-radius: 50%;
  width: 2.4rem;
  height: 2.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.steps__item h3 {
  margin-bottom: 0.25rem;
}

/* ---- Case study / portfolio cards ---- */
.cases {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-m);
}

.case-card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.case-card__image {
  aspect-ratio: 16 / 10;
  object-fit: cover;
  width: 100%;
}

.case-card__image--placeholder {
  aspect-ratio: 16 / 10;
  background: var(--color-accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-ink-soft);
  font-family: var(--font-label);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.case-card__body {
  padding: 1.5rem 1.5rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
}

.case-card__tag {
  font-family: var(--font-label);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-coral);
}

/* ---- About ---- */
.about-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-l);
  align-items: start;
}

.about-grid__photo {
  border-radius: var(--radius);
  aspect-ratio: 4 / 5;
  object-fit: cover;
  width: 100%;
}

.about-grid__photo--placeholder {
  border-radius: var(--radius);
  aspect-ratio: 4 / 5;
  background: var(--color-accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-ink-soft);
  font-family: var(--font-label);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.credentials {
  list-style: none;
  display: grid;
  gap: 0.9rem;
  margin-top: var(--space-s);
}

.credentials__item {
  padding-left: 1.4rem;
  position: relative;
  color: var(--color-ink-soft);
}

.credentials__item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--color-gold);
}

/* ---- CTA band: dark ink, matches hero/footer treatment ---- */
.cta-band {
  background: var(--color-ink);
  color: var(--color-surface);
  text-align: center;
  padding: var(--space-l) 0;
}

.cta-band h2,
.cta-band p {
  color: var(--color-surface);
}

.cta-band p {
  opacity: 0.8;
  max-width: 38rem;
  margin: 0.75rem auto 1.75rem;
}

/* ---- Contact ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-l);
  align-items: start;
}

.contact-block__social {
  display: grid;
  gap: 1rem;
  margin-top: var(--space-s);
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
  color: var(--color-ink);
  font-weight: 500;
  padding: 0.9rem 1.1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.contact-link:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 14px rgba(26, 28, 31, 0.06);
}

.contact-link__icon {
  width: 1.35rem;
  height: 1.35rem;
  color: var(--color-accent);
  flex-shrink: 0;
}

.contact-note {
  background: var(--color-accent-soft);
  border-radius: var(--radius);
  padding: 1.5rem 1.75rem;
  margin-top: var(--space-m);
}

.contact-note h3 {
  margin-bottom: 0.5rem;
}

.contact-note ul {
  margin: 0.5rem 0 0 1.1rem;
  color: var(--color-ink-soft);
}

/* ---- Form ---- */
.form {
  display: grid;
  gap: 1.1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 2rem;
}

.form__label {
  font-size: 0.88rem;
  font-weight: 600;
  display: block;
  margin-bottom: 0.35rem;
}

.form__input,
.form__select,
.form__textarea {
  width: 100%;
  font: inherit;
  color: var(--color-ink);
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-bg);
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
  border-color: var(--color-accent);
}

.form__textarea {
  min-height: 8.5rem;
  resize: vertical;
}

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

.form__hint {
  font-size: 0.85rem;
}

/* ---- Footer ---- */
.footer {
  background: var(--color-footer);
  color: var(--color-footer-ink);
  padding: var(--space-l) 0 var(--space-m);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-m);
  margin-bottom: var(--space-m);
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 0.9rem;
}

.footer__brand-logo {
  width: 40px;
  height: 40px;
}

.footer__brand .wordmark {
  font-size: 1.5rem;
}

.footer__text {
  font-size: 0.9rem;
  color: var(--color-footer-ink);
  max-width: 24rem;
}

.footer__heading {
  font-family: var(--font-label);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-surface);
  margin-bottom: 0.9rem;
}

.footer__list {
  list-style: none;
  display: grid;
  gap: 0.55rem;
}

.footer__link {
  font-size: 0.92rem;
  color: var(--color-footer-ink);
  text-decoration: none;
}

.footer__link:hover {
  color: #ffffff;
}

.footer__legal {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: var(--space-s);
  font-size: 0.82rem;
  color: rgba(183, 187, 193, 0.7);
}

/* ---- Responsive ---- */
@media (max-width: 860px) {
  .services,
  .stats,
  .offerings,
  .cases {
    grid-template-columns: 1fr;
  }

  .stats {
    gap: 1.5rem;
  }

  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-m);
  }

  .about-grid__photo,
  .about-grid__photo--placeholder {
    max-width: 22rem;
  }

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

  .nav__toggle {
    display: block;
  }

  .nav__links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    box-shadow: 0 12px 20px rgba(26, 28, 31, 0.08);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 0.5rem 0 1rem;
    display: none;
  }

  .nav--open .nav__links {
    display: flex;
  }

  .nav__links > li {
    width: 100%;
  }

  .nav__link {
    display: block;
    padding: 0.7rem var(--space-m);
    font-size: 1rem;
  }

  .nav__lang {
    padding: 0.7rem var(--space-m);
  }

  .nav--open .nav__toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav--open .nav__toggle-bar:nth-child(2) {
    opacity: 0;
  }

  .nav--open .nav__toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}