/* =========================================================
   Stratum Advisory — Global Stylesheet
   ========================================================= */

/* ---------------------------------------------------------
   Custom Properties
   --------------------------------------------------------- */
:root {
  --color-bg:        #f7f6f4;
  --color-surface:   #ffffff;
  --color-navy:      #1a2236;
  --color-navy-mid:  #2c3e5c;
  --color-gold:      #9d8b5e;
  --color-gold-light:#b8a47a;
  --color-text:      #1a2236;
  --color-muted:     #5a6475;
  --color-border:    #dddad4;
  --color-rule:      #e4e0d8;

  --font-serif:      'Georgia', 'Times New Roman', serif;
  --font-sans:       'Inter', 'Helvetica Neue', Arial, sans-serif;

  --size-xs:   0.75rem;
  --size-sm:   0.875rem;
  --size-base: 1rem;
  --size-md:   1.125rem;
  --size-lg:   1.375rem;
  --size-xl:   1.75rem;
  --size-2xl:  2.25rem;
  --size-3xl:  3rem;

  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  1.75rem;
  --space-lg:  3rem;
  --space-xl:  5rem;
  --space-2xl: 8rem;

  --max-width: 1080px;
  --header-h:  68px;
  --radius:    2px;

  --transition: 0.2s ease;
}

/* ---------------------------------------------------------
   Reset & Base
   --------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--size-base);
  line-height: 1.7;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
  list-style: none;
}

/* ---------------------------------------------------------
   Typography
   --------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  color: var(--color-navy);
  line-height: 1.2;
  letter-spacing: -0.015em;
}

h1 { font-size: var(--size-3xl); }
h2 { font-size: var(--size-2xl); }
h3 { font-size: var(--size-xl); }
h4 { font-size: var(--size-lg); }

p {
  color: var(--color-muted);
  max-width: 52ch;
}

p + p {
  margin-top: var(--space-sm);
}

/* ---------------------------------------------------------
   Layout Utilities
   --------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-2xl) 0;
}

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

.section--bordered {
  border-top: 1px solid var(--color-rule);
}

/* ---------------------------------------------------------
   Header
   --------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

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

.site-header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.site-header__logo img {
  height: 40px;
  width: auto;
}

/* ---------------------------------------------------------
   Navigation
   --------------------------------------------------------- */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.site-nav__link {
  font-family: var(--font-sans);
  font-size: var(--size-sm);
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-muted);
  transition: color var(--transition);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
}

.site-nav__link:hover,
.site-nav__link.is-active {
  color: var(--color-navy);
  border-bottom-color: var(--color-gold);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: var(--header-h);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle__bar {
  display: block;
  width: 22px;
  height: 1.5px;
  background-color: var(--color-navy);
  transition: transform var(--transition), opacity var(--transition);
  transform-origin: center;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ---------------------------------------------------------
   Footer
   --------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-xl) 0;
  background-color: var(--color-surface);
}

.site-footer__inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.site-footer__brand p {
  font-size: var(--size-xs);
  color: var(--color-muted);
  margin-top: var(--space-xs);
  max-width: 38ch;
}

.site-footer__nav {
  display: flex;
  gap: var(--space-md);
}

.site-footer__nav a {
  font-size: var(--size-sm);
  color: var(--color-muted);
  transition: color var(--transition);
}

.site-footer__nav a:hover {
  color: var(--color-navy);
}

.site-footer__legal {
  width: 100%;
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-rule);
  margin-top: var(--space-md);
}

.site-footer__legal p {
  font-size: var(--size-xs);
  color: var(--color-muted);
  max-width: none;
}

/* ---------------------------------------------------------
   Buttons
   --------------------------------------------------------- */
.btn {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--size-sm);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.85rem 2rem;
  border-radius: 0;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
  white-space: nowrap;
  cursor: pointer;
}

.btn--primary {
  background-color: var(--color-navy);
  color: #ffffff;
  border: 1px solid var(--color-navy);
}

.btn--primary:hover {
  background-color: var(--color-navy-mid);
  border-color: var(--color-navy-mid);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-navy);
  border: 1px solid var(--color-navy);
}

.btn--outline:hover {
  background-color: var(--color-navy);
  color: #ffffff;
}

/* ---------------------------------------------------------
   Eyebrow Label (shared)
   --------------------------------------------------------- */
.eyebrow {
  display: block;
  font-size: var(--size-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gold);
}

/* ---------------------------------------------------------
   Page Header (interior pages)
   --------------------------------------------------------- */
.page-header {
  padding: var(--space-xl) 0 var(--space-lg);
  border-bottom: 1px solid var(--color-rule);
}

.page-header .eyebrow {
  margin-bottom: var(--space-sm);
}

.page-header h1 {
  font-size: clamp(2.25rem, 4vw, 3.25rem);
}

.page-header p {
  margin-top: var(--space-md);
  font-size: var(--size-md);
  max-width: 50ch;
}

/* ---------------------------------------------------------
   Hero (Home)
   --------------------------------------------------------- */
.hero {
  padding: 7rem 0 6rem;
  border-bottom: 1px solid var(--color-rule);
}

.hero .eyebrow {
  margin-bottom: var(--space-md);
}

.hero__heading {
  font-size: clamp(2.5rem, 5.5vw, 4.25rem);
  line-height: 1.1;
  max-width: 16ch;
  margin-bottom: var(--space-md);
  letter-spacing: -0.025em;
}

.hero__body {
  font-size: var(--size-md);
  max-width: 46ch;
  margin-bottom: var(--space-lg);
  line-height: 1.75;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

/* ---------------------------------------------------------
   Intro Section
   --------------------------------------------------------- */
.intro__heading {
  font-size: clamp(1.5rem, 2.5vw, var(--size-2xl));
  margin-bottom: var(--space-md);
  max-width: 24ch;
}

.intro__body {
  font-size: var(--size-md);
  max-width: 52ch;
  line-height: 1.75;
}

/* ---------------------------------------------------------
   Core Areas — open editorial list (no card boxes)
   --------------------------------------------------------- */
.areas__header {
  margin-bottom: var(--space-lg);
}

.areas__header .eyebrow {
  margin-bottom: var(--space-xs);
}

.areas__list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-rule);
}

.area-entry {
  display: grid;
  grid-template-columns: 28px 1fr;
  grid-template-rows: auto auto;
  column-gap: 14px;
  row-gap: 0.5rem;
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-rule);
  align-items: start;
}

.area-entry__number {
  grid-row: 1;
  grid-column: 1;
  font-family: var(--font-sans);
  font-size: var(--size-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  color: #a09b93;
  user-select: none;
  padding-top: 0.3em;
}

.area-entry__title {
  grid-row: 1;
  grid-column: 2;
  font-family: var(--font-serif);
  font-size: var(--size-lg);
  font-weight: 400;
  color: var(--color-navy);
  line-height: 1.3;
}

.area-entry__body {
  grid-row: 2;
  grid-column: 2;
  font-size: var(--size-base);
  color: var(--color-muted);
  line-height: 1.75;
  max-width: 52ch;
}

/* ---------------------------------------------------------
   Who We Work With
   --------------------------------------------------------- */
.clients__heading {
  margin-bottom: var(--space-md);
}

.clients__intro {
  margin-bottom: var(--space-lg);
  font-size: var(--size-md);
}

.clients__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.clients__item {
  display: flex;
  align-items: baseline;
  gap: 1.25rem;
  font-size: var(--size-md);
  color: var(--color-muted);
  font-family: var(--font-serif);
}

.clients__item::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1px;
  background-color: var(--color-gold);
  flex-shrink: 0;
  position: relative;
  top: -4px;
}

/* ---------------------------------------------------------
   Compliance Notice
   --------------------------------------------------------- */
.compliance {
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-rule);
}

.compliance__heading {
  font-size: var(--size-base);
  font-family: var(--font-sans);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-muted);
  font-size: var(--size-xs);
  margin-bottom: var(--space-sm);
}

.compliance p {
  font-size: var(--size-sm);
  max-width: 56ch;
}

/* ---------------------------------------------------------
   CTA Block
   --------------------------------------------------------- */
.cta {
  text-align: center;
}

.cta__heading {
  margin-bottom: var(--space-sm);
}

.cta p {
  margin: 0 auto var(--space-md);
}

.cta__email {
  font-size: var(--size-lg);
  font-family: var(--font-serif);
  color: var(--color-navy);
  margin-top: var(--space-sm);
  border-bottom: 1px solid var(--color-gold);
  display: inline-block;
  padding-bottom: 2px;
  transition: color var(--transition);
}

.cta__email:hover {
  color: var(--color-gold);
}

/* ---------------------------------------------------------
   Services Page
   --------------------------------------------------------- */
.services-list {
  display: flex;
  flex-direction: column;
}

.section--services {
  padding-top: var(--space-xl);
}

.service-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--space-lg);
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--color-rule);
  align-items: start;
}

.service-item:first-child {
  padding-top: var(--space-md);
}

.service-item__number {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--color-rule);
  line-height: 1.3;
  user-select: none;
  padding-top: 0.2em;
}

.service-item__title {
  font-size: var(--size-xl);
  margin-bottom: var(--space-md);
}

.service-item p {
  font-size: var(--size-base);
  max-width: 54ch;
}

.services-closing {
  padding-top: var(--space-xl);
}

.services-closing p {
  font-size: var(--size-base);
  max-width: 56ch;
}

.services-closing p + p {
  margin-top: var(--space-sm);
  font-size: var(--size-sm);
  color: var(--color-muted);
  font-style: italic;
}

/* ---------------------------------------------------------
   Contact Page
   --------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  padding: var(--space-xl) 0;
}

.contact-block__label {
  display: block;
  font-size: var(--size-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.contact-block__value {
  font-family: var(--font-serif);
  font-size: var(--size-xl);
  color: var(--color-navy);
}

.contact-block__value a {
  border-bottom: 1px solid var(--color-gold);
  padding-bottom: 1px;
  transition: color var(--transition);
}

.contact-block__value a:hover {
  color: var(--color-gold);
}

.contact-block__sub {
  display: block;
  margin-top: var(--space-xs);
  font-size: var(--size-sm);
  color: var(--color-muted);
}

.contact-note {
  padding: var(--space-md) 0;
  border-top: 1px solid var(--color-rule);
  margin-top: var(--space-md);
}

.contact-note p {
  font-size: var(--size-sm);
  max-width: none;
}

/* ---------------------------------------------------------
   Responsive
   --------------------------------------------------------- */
@media (max-width: 768px) {
  :root {
    --space-2xl: 5rem;
    --space-xl:  3.5rem;
    --space-lg:  2.25rem;
  }

  .hero {
    padding: 4.5rem 0 4rem;
  }

  .hero__heading {
    font-size: clamp(2rem, 8vw, 2.75rem);
  }

  /* Mobile nav */
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md) var(--space-lg);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    width: 100%;
  }

  .site-nav__link {
    display: block;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-rule);
    width: 100%;
    font-size: var(--size-base);
    border-right: none;
  }

  .site-nav__link:last-child {
    border-bottom: none;
  }

  /* Core areas */
  .area-entry {
    grid-template-columns: 24px 1fr;
    column-gap: 10px;
  }

  .area-entry__title {
    font-size: var(--size-md);
  }

  /* Services */
  .service-item {
    grid-template-columns: 1fr;
    gap: var(--space-xs);
  }

  .service-item__number {
    font-size: 1.5rem;
  }

  /* Contact */
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  /* Footer */
  .site-footer__inner {
    flex-direction: column;
    gap: var(--space-md);
  }

  .site-footer__nav {
    flex-wrap: wrap;
    gap: var(--space-sm);
  }

  .hero__actions {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1.25rem;
  }
}

/* ---------------------------------------------------------
   Policy / Long-form Content Pages
   --------------------------------------------------------- */
.policy-body {
  padding: var(--space-2xl) 0;
}

.policy-meta {
  font-size: var(--size-sm);
  color: var(--color-muted);
  padding-bottom: var(--space-lg);
  margin-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-rule);
}

.policy-meta p {
  font-size: var(--size-sm);
  max-width: none;
  margin-top: 0.25rem;
}

.policy-section {
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-rule);
  margin-bottom: var(--space-xl);
}

.policy-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.policy-section h2 {
  font-size: var(--size-lg);
  margin-bottom: var(--space-md);
}

.policy-section p {
  font-size: var(--size-base);
  max-width: 62ch;
  color: var(--color-muted);
}

.policy-section p + p {
  margin-top: var(--space-sm);
}

.policy-section ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: var(--space-sm);
}

.policy-section ul li {
  font-size: var(--size-base);
  color: var(--color-muted);
  padding-left: 1.5rem;
  position: relative;
  max-width: 58ch;
}

.policy-section ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-gold);
  font-size: var(--size-xs);
  top: 0.3em;
}

.policy-contact {
  margin-top: var(--space-md);
}

.policy-contact a {
  font-family: var(--font-serif);
  font-size: var(--size-md);
  color: var(--color-navy);
  border-bottom: 1px solid var(--color-gold);
  padding-bottom: 1px;
  transition: color var(--transition);
}

.policy-contact a:hover {
  color: var(--color-gold);
}

/* Service area note */
.clients__geo {
  margin-top: var(--space-lg);
  font-size: var(--size-base);
  color: var(--color-muted);
  max-width: 52ch;
}

.contact-geo {
  margin-top: var(--space-sm);
  font-size: var(--size-sm);
  color: var(--color-muted);
  max-width: none;
}