/* ==========================================================================
   EXECUTIVE PR — base.css
   Theme-agnostic foundation: reset, layout, components, responsive, a11y.
   All COLOR, FONT and ornament decisions live in theme-one.css / theme-two.css
   and are exposed here as CSS custom properties (variables).
   --------------------------------------------------------------------------
   The active theme is set via a class on <body>:  .theme-one  or  .theme-two
   ========================================================================== */

/* ---------- Reset & box model ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

* { margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image: var(--bg-texture, none);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color .5s ease, color .5s ease;
}

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

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

/* ---------- Typography scale ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: var(--display-weight, 400);
  line-height: 1.12;
  letter-spacing: var(--display-tracking, normal);
  color: var(--color-heading);
}

h1 { font-size: clamp(2.5rem, 6vw, 5rem); }
h2 { font-size: clamp(2rem, 4.2vw, 3.25rem); }
h3 { font-size: clamp(1.4rem, 2.4vw, 2rem); }
h4 { font-size: clamp(1.1rem, 1.6vw, 1.35rem); }

p { max-width: 68ch; }

strong { font-weight: 600; }

/* Small uppercase "eyebrow" label used above headings */
.eyebrow {
  display: inline-block;
  font-family: var(--font-eyebrow);
  font-size: .72rem;
  letter-spacing: .35em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1.1rem;
}

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container-max, 1240px);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 4rem);
}

.container--narrow { max-width: 820px; }

section { position: relative; }

.section {
  padding-block: var(--section-pad, clamp(4rem, 9vw, 8rem));
}

.section--tight { padding-block: clamp(3rem, 5vw, 4.5rem); }

/* Surface variants — themes redefine the exact colors */
.surface-dark  { background: var(--surface-dark);  color: var(--surface-dark-text); }
.surface-light { background: var(--surface-light); color: var(--surface-light-text); }
.surface-alt   { background: var(--surface-alt);    color: var(--color-text); }

.surface-dark h1, .surface-dark h2, .surface-dark h3,
.surface-dark h4 { color: var(--surface-dark-heading, #fff); }
.surface-light h1, .surface-light h2, .surface-light h3,
.surface-light h4 { color: var(--surface-light-heading, #14110d); }

.text-center { text-align: center; }
.mx-auto { margin-inline: auto; }
.measure { max-width: 60ch; }
.measure.text-center { margin-inline: auto; }

/* ---------- Thin gold divider line (luxury detail) ---------- */
.rule {
  width: 64px;
  height: 1px;
  background: var(--color-accent);
  border: 0;
  margin: 1.5rem 0;
}
.rule.is-center { margin-inline: auto; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .6em;
  font-family: var(--font-eyebrow);
  font-size: .82rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  padding: var(--btn-pad, 1rem 2.2rem);
  border-radius: var(--btn-radius, 0);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .25s ease, background-color .3s ease,
              color .3s ease, border-color .3s ease, box-shadow .3s ease;
  white-space: nowrap;
}
.btn:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }
.btn:hover { transform: translateY(-2px); }

.btn--primary {
  background: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  border-color: var(--btn-primary-border, transparent);
  box-shadow: var(--btn-primary-shadow, none);
}
.btn--primary:hover {
  background: var(--btn-primary-bg-hover);
  color: var(--btn-primary-text-hover, var(--btn-primary-text));
}

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

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}
.btn-row.is-center { justify-content: center; }

/* ---------- Header / Navigation ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--header-bg);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--header-border);
  transition: background-color .4s ease, border-color .4s ease;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding-block: 1.1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: .12em;
  color: var(--color-heading);
}
.brand .brand-mark {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border: 1px solid var(--color-accent);
  border-radius: var(--mark-radius, 50%);
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: .85rem;
  letter-spacing: 0;
  flex: 0 0 auto;
}
.brand span.brand-sub {
  font-family: var(--font-eyebrow);
  font-size: .58rem;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: block;
  line-height: 1;
  margin-top: .25rem;
}
.brand .brand-name { line-height: 1; }

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2.1rem);
}
.nav-links a {
  font-family: var(--font-eyebrow);
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--nav-link);
  position: relative;
  padding-block: .4rem;
  transition: color .25s ease;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--color-accent);
  transition: width .3s ease;
}
.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a[aria-current="page"] { color: var(--nav-link-active); }
.nav-links a:hover::after,
.nav-links a:focus-visible::after,
.nav-links a[aria-current="page"]::after { width: 100%; }

.nav-cta { display: inline-flex; align-items: center; gap: 1rem; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 42px; height: 42px;
  align-items: center; justify-content: center;
  background: transparent;
  border: 1px solid var(--header-border);
  border-radius: var(--btn-radius, 0);
  cursor: pointer;
}
.nav-toggle span {
  width: 22px; height: 1.5px;
  background: var(--color-heading);
  transition: transform .3s ease, opacity .3s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: var(--hero-min, 86vh);
  padding-block: clamp(5rem, 12vh, 9rem);
  overflow: hidden;
  background: var(--hero-bg);
}
.hero--page { min-height: var(--hero-page-min, 58vh); }

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-media img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.hero-media::after {
  content: "";
  position: absolute; inset: 0;
  background: var(--hero-overlay);
}
.hero .container { position: relative; z-index: 2; }

.hero-eyebrow { color: var(--color-accent); }

.hero h1 { color: var(--hero-heading); max-width: 16ch; }
.hero--page h1 { max-width: 20ch; }
.hero p.lead {
  font-size: clamp(1.05rem, 1.5vw, 1.3rem);
  color: var(--hero-text);
  max-width: 56ch;
  margin-top: 1.5rem;
}

/* ---------- Lead / intro paragraph ---------- */
.lead {
  font-size: clamp(1.1rem, 1.7vw, 1.5rem);
  line-height: 1.6;
  color: var(--color-text);
}

/* ---------- Grid systems ---------- */
.grid { display: grid; gap: var(--grid-gap, 1.5rem); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Split: text + media */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
.split--media-left .split-media { order: -1; }
.split-media img {
  width: 100%;
  border-radius: var(--img-radius, 0);
  box-shadow: var(--img-shadow, none);
  border: var(--img-border, none);
}
.split-body .eyebrow { margin-top: 0; }

/* ---------- Cards ---------- */
.card {
  background: var(--card-bg);
  border: var(--card-border);
  border-radius: var(--card-radius, 0);
  padding: var(--card-pad, 2rem);
  box-shadow: var(--card-shadow, none);
  transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--card-shadow-hover, var(--card-shadow, none));
  border-color: var(--card-border-hover, var(--color-accent));
}
.card .card-icon {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  border: 1px solid var(--color-accent);
  border-radius: var(--mark-radius, 50%);
  color: var(--color-accent);
  margin-bottom: 1.4rem;
  font-size: 1.1rem;
}
.card h3 { margin-bottom: .7rem; }
.card p { color: var(--card-text); font-size: .98rem; }
.card .card-link {
  margin-top: auto;
  padding-top: 1.2rem;
  font-family: var(--font-eyebrow);
  font-size: .74rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: .5rem;
}
.card .card-link::after { content: "\2192"; transition: transform .3s ease; }
.card:hover .card-link::after { transform: translateX(5px); }

/* Image card (media tile with caption overlay) */
.tile {
  position: relative;
  overflow: hidden;
  border-radius: var(--img-radius, 0);
  border: var(--img-border, none);
  aspect-ratio: 4 / 5;
}
.tile img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .8s cubic-bezier(.2,.7,.2,1);
}
.tile:hover img { transform: scale(1.06); }
.tile::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.78) 0%, rgba(0,0,0,.05) 55%);
}
.tile-caption {
  position: absolute;
  left: 0; bottom: 0;
  z-index: 2;
  padding: 1.6rem;
  color: #fff;
}
.tile-caption .eyebrow { color: var(--color-accent); margin-bottom: .4rem; }
.tile-caption h3 { color: #fff; font-size: 1.3rem; }
.tile--wide { aspect-ratio: 16 / 10; }

/* ---------- Stat / number row ---------- */
.stat { text-align: center; }
.stat .stat-num {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  color: var(--color-accent);
  line-height: 1;
}
.stat .stat-label {
  font-family: var(--font-eyebrow);
  font-size: .72rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  margin-top: .7rem;
  opacity: .85;
}

/* ---------- Service / list detail rows ---------- */
.detail-list { display: grid; gap: 1.5rem; }
.detail-row {
  border-top: 1px solid var(--hairline);
  padding-top: 1.5rem;
}
.detail-row .meta {
  font-family: var(--font-eyebrow);
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: .4rem;
}
.tag-list {
  display: flex; flex-wrap: wrap; gap: .6rem;
  margin-top: 1rem;
}
.tag {
  font-family: var(--font-eyebrow);
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: .4rem .85rem;
  border: 1px solid var(--hairline);
  border-radius: var(--btn-radius, 0);
  color: var(--card-text);
}

/* ---------- Numbered process steps ---------- */
.steps { counter-reset: step; display: grid; gap: 1.5rem; }
.step { display: flex; gap: 1.4rem; align-items: flex-start; }
.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--color-accent);
  flex: 0 0 auto;
  min-width: 2.2rem;
}

/* ---------- CTA band ---------- */
.cta-band { text-align: center; }
.cta-band h2 { max-width: 22ch; margin-inline: auto; }
.cta-band p { margin: 1.2rem auto 0; }

/* ---------- Forms ---------- */
.form { display: grid; gap: 1.5rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.field { display: flex; flex-direction: column; gap: .5rem; }
.field label {
  font-family: var(--font-eyebrow);
  font-size: .74rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--color-text);
}
.field .req { color: var(--color-accent); }
.field input,
.field select,
.field textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--btn-radius, 0);
  padding: .9rem 1rem;
  transition: border-color .25s ease, box-shadow .25s ease;
  width: 100%;
}
.field textarea { resize: vertical; min-height: 140px; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-focus);
}
.field.invalid input,
.field.invalid select,
.field.invalid textarea { border-color: var(--color-error); }
.field .error-msg {
  font-size: .8rem;
  color: var(--color-error);
  display: none;
}
.field.invalid .error-msg { display: block; }
.form-note { font-size: .85rem; opacity: .75; }
.form-success {
  display: none;
  padding: 1.2rem 1.4rem;
  border: 1px solid var(--color-accent);
  background: var(--input-bg);
  border-radius: var(--btn-radius, 0);
  font-family: var(--font-eyebrow);
  letter-spacing: .05em;
}
.form-success.show { display: block; }

/* ---------- Contact info block ---------- */
.info-block { display: grid; gap: 1.6rem; }
.info-item .info-label {
  font-family: var(--font-eyebrow);
  font-size: .72rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: .35rem;
}
.info-item .info-value { font-size: 1.15rem; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  border-top: 1px solid var(--footer-border);
  padding-block: clamp(3.5rem, 7vw, 5.5rem) 2rem;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 2.5rem;
}
.footer-brand .brand { color: var(--footer-heading); }
.footer-brand p { color: var(--footer-text); font-size: .95rem; margin-top: 1.2rem; max-width: 34ch; }
.footer-col h4 {
  font-family: var(--font-eyebrow);
  font-size: .74rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1.2rem;
}
.footer-col ul { display: grid; gap: .7rem; }
.footer-col a { color: var(--footer-text); font-size: .95rem; transition: color .25s ease; }
.footer-col a:hover { color: var(--footer-heading); }
.footer-bottom {
  margin-top: 3.5rem;
  padding-top: 1.8rem;
  border-top: 1px solid var(--footer-border);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  font-size: .82rem;
  color: var(--footer-text);
}

/* ---------- Theme switcher ---------- */
.theme-switch {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  border: 1px solid var(--header-border);
  border-radius: 999px;
  padding: .25rem;
}
.theme-switch button {
  font-family: var(--font-eyebrow);
  font-size: .66rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: .45rem .85rem;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--nav-link);
  cursor: pointer;
  transition: background-color .3s ease, color .3s ease;
}
.theme-switch button[aria-pressed="true"] {
  background: var(--color-accent);
  color: var(--btn-primary-text);
}
.theme-switch button:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 2px; }

.footer-switch { margin-top: 1.4rem; }
.footer-switch .switch-label {
  font-family: var(--font-eyebrow);
  font-size: .66rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: block;
  margin-bottom: .7rem;
}

/* ---------- Accessibility helpers ---------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 200;
  background: var(--color-accent);
  color: var(--btn-primary-text);
  padding: .8rem 1.4rem;
  font-family: var(--font-eyebrow);
  letter-spacing: .1em;
  text-transform: uppercase;
}
.skip-link:focus { left: 0; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

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

/* ---------- Scroll reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .8s ease, transform .8s cubic-bezier(.2,.7,.2,1);
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: none; }
.reveal.delay-1 { transition-delay: .08s; }
.reveal.delay-2 { transition-delay: .16s; }
.reveal.delay-3 { transition-delay: .24s; }
.reveal.delay-4 { transition-delay: .32s; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .footer-top { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 1180px) {
  /* Clip the off-canvas menu so its hidden (translated) state
     never adds horizontal scroll to the page. */
  html, body { overflow-x: clip; }
  /* Drop the header's backdrop-filter on mobile. A backdrop-filter
     ancestor becomes the containing block for position:fixed children,
     which prevented the off-canvas menu panel from painting opaquely. */
  .site-header { backdrop-filter: none; }
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(82vw, 360px);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 1.5rem;
    padding: 6rem 2rem 2rem;
    /* Opaque layer — isolate from any backdrop-filter ancestor so the
       page never shows through the open menu. */
    background-color: var(--mobile-menu-bg);
    isolation: isolate;
    z-index: 95;
    transform: translateX(100%);
    transition: transform .4s cubic-bezier(.2,.7,.2,1);
    box-shadow: -20px 0 60px rgba(0,0,0,.5);
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { font-size: 1rem; }
  .nav-cta .btn { display: none; }
  .nav-cta .theme-switch { display: none; }
  body.menu-open { overflow: hidden; }
  .menu-backdrop {
    position: fixed; inset: 0;
    background: rgba(0,0,0,.5);
    opacity: 0; visibility: hidden;
    transition: opacity .3s ease, visibility .3s ease;
    z-index: 90;
  }
  .menu-backdrop.show { opacity: 1; visibility: visible; }
}

@media (max-width: 760px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
  .split--media-left .split-media { order: 0; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  h1 { font-size: clamp(2.1rem, 9vw, 3rem); }
  .hero { min-height: 74vh; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}
