/* ═══════════════════════════════════════════
   MATRÈSA — Style System
   Palette: Quintessentially-inspired dark luxury
   Fonts: Cormorant Garamond (display) + Jost (UI)
═══════════════════════════════════════════ */

/* ─── TOKENS ─── */
:root {
  /* Colors — dark luxury palette */
  --color-bg:          #141210;
  --color-surface:     #1c1a17;
  --color-surface-2:   #232019;
  --color-light-bg:    #f2f0ed;
  --color-light-surface: #faf9f7;
  --color-border:      #2e2b26;
  --color-border-light: #dedad4;

  --color-text:        #e8e5df;
  --color-text-muted:  #8c8880;
  --color-text-faint:  #4a4742;
  --color-text-dark:   #1a1714;
  --color-text-dark-muted: #6b6760;

  --color-cream:       #f2f0ed;
  --color-warm-white:  #faf9f7;

  /* Type scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.8125rem, 0.75rem + 0.3vw,  0.9375rem);
  --text-base: clamp(1rem,      0.95rem + 0.25vw,  1.125rem);
  --text-lg:   clamp(1.125rem,  1rem    + 0.75vw,  1.5rem);
  --text-xl:   clamp(1.5rem,    1.2rem  + 1.25vw,  2.25rem);
  --text-2xl:  clamp(2.25rem,   1.5rem  + 3vw,     4rem);
  --text-hero: clamp(3.5rem,    1.5rem  + 7vw,     8rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Content widths */
  --content-default: 1160px;
  --content-narrow:  720px;

  /* Fonts */
  --font-display: 'Cormorant Garamond', 'Georgia', serif;
  --font-body:    'Jost', 'Helvetica Neue', sans-serif;

  /* Transitions */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --transition: 220ms var(--ease);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 300;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

img, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; transition: opacity var(--transition); }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 300;
  line-height: 1.08;
  text-wrap: balance;
}

p { text-wrap: pretty; }


/* ─── BUTTONS ─── */
.btn {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: all var(--transition);
  cursor: pointer;
}

.btn--outline {
  padding: 0.85em 2.4em;
  border: 1px solid rgba(232, 229, 223, 0.5);
  color: var(--color-text);
  border-radius: 9999px;
}
.btn--outline:hover {
  border-color: var(--color-text);
  background: rgba(232,229,223,0.06);
}

.btn--outline-dark {
  padding: 0.85em 2.4em;
  border: 1px solid rgba(26, 23, 20, 0.4);
  color: var(--color-text-dark);
  border-radius: 9999px;
}
.btn--outline-dark:hover {
  border-color: var(--color-text-dark);
  background: rgba(26,23,20,0.06);
}

.btn--text {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: 0;
  border: none;
  background: none;
}
.btn--text:hover { color: var(--color-text); opacity: 1; }

.btn--text-sm {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-dark-muted);
  padding: 0;
}
.btn--text-sm:hover { color: var(--color-text-dark); opacity: 1; }

.btn--submit {
  display: block;
  width: 100%;
  padding: 1.1em 2em;
  background: var(--color-text-dark);
  color: var(--color-cream);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 400;
  border-radius: 9999px;
  transition: all var(--transition);
}
.btn--submit:hover { background: #2e2a24; }


/* ─── SECTION LABEL ─── */
.section-label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  display: block;
}


/* ═══ NAV ═══ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition), border-color var(--transition);
}

.nav__inner {
  max-width: var(--content-default);
  margin: 0 auto;
  padding: 0 var(--space-8);
  height: 68px;
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  opacity: 1;
}
.nav__logo:hover { opacity: 0.7; }

.nav__wordmark {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 400;
  font-style: italic;
  letter-spacing: 0.04em;
  color: var(--color-text);
}

.nav__links {
  display: flex;
  gap: var(--space-8);
  margin-left: auto;
  align-items: center;
}

.nav__link {
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 400;
  color: var(--color-text-muted);
  transition: color var(--transition);
}
.nav__link:hover { color: var(--color-text); }

.nav__cta {
  flex-shrink: 0;
  margin-left: var(--space-6);
  padding: 0.6em 1.8em;
  border: 1px solid rgba(232, 229, 223, 0.35);
  border-radius: 9999px;
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 400;
  color: var(--color-text);
  transition: all var(--transition);
}
.nav__cta:hover {
  border-color: var(--color-text);
  background: rgba(232,229,223,0.06);
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  margin-left: auto;
}
.nav__hamburger span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--color-text);
  transition: all var(--transition);
}

.nav__mobile {
  display: none;
  flex-direction: column;
  padding: var(--space-6) var(--space-8) var(--space-8);
  gap: var(--space-5);
  border-top: 1px solid var(--color-border);
}
.nav__mobile.open { display: flex; }

.nav__mobile-link {
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.nav__mobile-link:hover { color: var(--color-text); }

.nav__mobile-cta {
  display: inline-flex;
  width: fit-content;
  padding: 0.7em 2em;
  border: 1px solid rgba(232, 229, 223, 0.35);
  border-radius: 9999px;
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text);
  margin-top: var(--space-2);
}


/* ═══ HERO ═══ */
.hero {
  min-height: 100dvh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding-top: 68px;
}

.hero__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(var(--space-12), 8vw, var(--space-32)) clamp(var(--space-8), 5vw, var(--space-20));
  padding-left: clamp(var(--space-8), 6vw, 120px);
}

.hero__eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
}

.hero__headline {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 300;
  line-height: 0.96;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin-bottom: var(--space-10);
}
.hero__headline em {
  font-style: italic;
  font-weight: 300;
}

.hero__sub {
  font-size: var(--text-base);
  font-weight: 300;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-12);
  max-width: 36ch;
}

.hero__image-wrap {
  position: relative;
  overflow: hidden;
}

.hero__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero__image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, var(--color-bg) 0%, rgba(20,18,16,0.55) 50%, rgba(20,18,16,0.35) 100%);
  z-index: 1;
  pointer-events: none;
}


/* ═══ CREDENTIALS ═══ */
.credentials {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-6) var(--space-8);
}

.credentials__inner {
  max-width: var(--content-default);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.credentials__label {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  flex-shrink: 0;
}

.credentials__logos {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.credentials__logo {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.credentials__divider {
  color: var(--color-text-faint);
  font-size: var(--text-xs);
}


/* ═══ INTRO ═══ */
.intro {
  background: var(--color-bg);
  padding: clamp(var(--space-20), 10vw, var(--space-32)) clamp(var(--space-8), 5vw, var(--space-20));
}

.intro__inner {
  max-width: var(--content-default);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-12), 6vw, var(--space-24));
  align-items: start;
}

.intro__heading {
  font-size: var(--text-2xl);
  font-weight: 300;
  line-height: 1.05;
  color: var(--color-text);
}
.intro__heading em {
  font-style: italic;
}

.intro__body {
  font-size: var(--text-base);
  font-weight: 300;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: var(--space-5);
  max-width: 52ch;
}
.intro__body:last-of-type { margin-bottom: var(--space-8); }


/* ═══ RESEARCH ═══ */
.research {
  background: var(--color-light-bg);
  padding: clamp(var(--space-20), 10vw, var(--space-32)) clamp(var(--space-8), 5vw, var(--space-20));
}

.research__header {
  max-width: var(--content-default);
  margin: 0 auto var(--space-12);
}

.research__header .section-label { color: var(--color-text-dark-muted); }

.research__title {
  font-size: var(--text-2xl);
  font-weight: 300;
  color: var(--color-text-dark);
  line-height: 1.05;
}
.research__title em { font-style: italic; }

.research__grid {
  max-width: var(--content-default);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.research__card {
  background: var(--color-light-surface);
  padding: var(--space-10) var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.research__card-tag {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-dark-muted);
}

.research__card-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 400;
  font-style: italic;
  color: var(--color-text-dark);
  line-height: 1.2;
}

.research__card-body {
  font-size: var(--text-sm);
  font-weight: 300;
  color: var(--color-text-dark-muted);
  line-height: 1.75;
  flex: 1;
}


/* ═══ WORK TOGETHER ═══ */
.work {
  background: var(--color-light-surface);
  padding: clamp(var(--space-20), 10vw, var(--space-32)) clamp(var(--space-8), 5vw, var(--space-20));
  border-top: 1px solid var(--color-border-light);
}

.work__inner {
  max-width: var(--content-default);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-12), 7vw, var(--space-24));
  align-items: start;
}

.work__inner .section-label { color: var(--color-text-dark-muted); }

.work__title {
  font-size: var(--text-2xl);
  font-weight: 300;
  color: var(--color-text-dark);
  line-height: 1.05;
  margin-bottom: var(--space-8);
}
.work__title em { font-style: italic; }

.work__body {
  font-size: var(--text-base);
  font-weight: 300;
  color: var(--color-text-dark-muted);
  line-height: 1.8;
  max-width: 48ch;
  margin-bottom: var(--space-5);
}
.work__body:last-of-type { margin-bottom: var(--space-10); }

.work__steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  padding-top: var(--space-4);
}

.work__step {
  display: flex;
  gap: var(--space-6);
  align-items: flex-start;
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-border-light);
}
.work__step:last-child { border-bottom: none; padding-bottom: 0; }

.work__step-num {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 300;
  color: var(--color-border-light);
  flex-shrink: 0;
  line-height: 1;
  padding-top: 2px;
}

.work__step-title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 400;
  font-style: italic;
  color: var(--color-text-dark);
  margin-bottom: var(--space-2);
}

.work__step-body {
  font-size: var(--text-sm);
  font-weight: 300;
  color: var(--color-text-dark-muted);
  line-height: 1.7;
}


/* ═══ SPEAKING ═══ */
.speaking {
  background: var(--color-bg);
  padding: clamp(var(--space-24), 12vw, var(--space-32)) clamp(var(--space-8), 5vw, var(--space-20));
  text-align: center;
}

.speaking__inner {
  max-width: var(--content-narrow);
  margin: 0 auto;
}

.speaking .section-label {
  text-align: center;
  margin-bottom: var(--space-6);
}

.speaking__title {
  font-size: var(--text-2xl);
  font-weight: 300;
  color: var(--color-text);
  line-height: 1.1;
  margin-bottom: var(--space-8);
}
.speaking__title em { font-style: italic; }

.speaking__body {
  font-size: var(--text-base);
  font-weight: 300;
  color: var(--color-text-muted);
  line-height: 1.8;
  max-width: 52ch;
  margin: 0 auto var(--space-10);
}


/* ═══ ABOUT ═══ */
.about {
  background: var(--color-surface);
  padding: clamp(var(--space-20), 10vw, var(--space-32)) clamp(var(--space-8), 5vw, var(--space-20));
  border-top: 1px solid var(--color-border);
}

.about__inner {
  max-width: var(--content-default);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: clamp(var(--space-12), 7vw, var(--space-24));
  align-items: center;
}

.about__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.about__image-wrap {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--color-surface-2, #1c1a17);
  flex-shrink: 0;
}

.about__image-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(160deg, #232019 0%, #1a1714 100%);
}

.about__inner .section-label { color: var(--color-text-muted); }

.about__title {
  font-size: var(--text-2xl);
  font-weight: 300;
  color: var(--color-text);
  line-height: 1.05;
  margin-bottom: var(--space-8);
}
.about__title em { font-style: italic; }

.about__body {
  font-size: var(--text-base);
  font-weight: 300;
  color: var(--color-text-muted);
  line-height: 1.8;
  max-width: 50ch;
  margin-bottom: var(--space-5);
}


/* ═══ ENQUIRE ═══ */
.enquire {
  background: var(--color-light-bg);
  padding: clamp(var(--space-20), 10vw, var(--space-32)) clamp(var(--space-8), 5vw, var(--space-20));
}

.enquire__inner {
  max-width: 640px;
  margin: 0 auto;
}

.enquire .section-label { color: var(--color-text-dark-muted); }

.enquire__title {
  font-size: var(--text-2xl);
  font-weight: 300;
  color: var(--color-text-dark);
  line-height: 1.05;
  margin-bottom: var(--space-5);
}
.enquire__title em { font-style: italic; }

.enquire__body {
  font-size: var(--text-base);
  font-weight: 300;
  color: var(--color-text-dark-muted);
  line-height: 1.75;
  margin-bottom: var(--space-10);
}

.enquire__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.form__input,
.form__textarea {
  width: 100%;
  padding: 1em 1.2em;
  background: var(--color-light-surface);
  border: 1px solid var(--color-border-light);
  border-radius: 0;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 300;
  color: var(--color-text-dark);
  transition: border-color var(--transition);
  appearance: none;
  outline: none;
}
.form__input::placeholder,
.form__textarea::placeholder {
  color: var(--color-text-dark-muted);
  opacity: 0.6;
}
.form__input:focus,
.form__textarea:focus {
  border-color: var(--color-text-dark);
}
.form__textarea { resize: vertical; min-height: 140px; }

.enquire__location {
  text-align: center;
  margin-top: var(--space-8);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-dark-muted);
}

.enquire__alt {
  text-align: center;
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  font-weight: 300;
  color: var(--color-text-dark-muted);
}
.enquire__link {
  color: var(--color-text-dark);
  text-decoration: underline;
  text-decoration-color: rgba(26,23,20,0.3);
  text-underline-offset: 3px;
}
.enquire__link:hover { text-decoration-color: var(--color-text-dark); }


/* ═══ FOOTER ═══ */
.footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: var(--space-12) var(--space-8);
}

.footer__inner {
  max-width: var(--content-default);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  text-align: center;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  color: var(--color-text-muted);
}

.footer__tagline {
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

.footer__copy {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.06em;
}


/* ═══ FLOATING CTA ═══ */
.floating-cta {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 90;
  padding: 0.75em 1.8em;
  background: var(--color-text);
  color: var(--color-bg);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 400;
  border-radius: 9999px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.35);
  transition: all var(--transition);
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
}
.floating-cta.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.floating-cta:hover {
  background: var(--color-cream);
  color: var(--color-text-dark);
}


/* ═══ RESPONSIVE ═══ */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .hero__content {
    padding: clamp(var(--space-16), 8vw, var(--space-24)) var(--space-6);
    padding-top: calc(68px + var(--space-12));
  }
  .hero__image-wrap {
    height: 55vw;
    min-height: 280px;
    position: relative;
  }
  .hero__image-overlay {
    background: linear-gradient(to bottom, var(--color-bg) 0%, transparent 30%);
  }

  .nav__links, .nav__cta { display: none; }
  .nav__hamburger { display: flex; }

  .intro__inner,
  .work__inner,
  .about__inner {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }

  .research__grid {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

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

  .about__image-wrap { width: 160px; height: 160px; margin: 0 auto; }
}

@media (max-width: 600px) {
  .credentials__inner { flex-direction: column; align-items: flex-start; gap: var(--space-4); }
  .floating-cta { bottom: var(--space-4); right: var(--space-4); }
}