/* ==========================================================================
   Supernova Investments — black, gray, purple
   ========================================================================== */

:root {
  --color-black: #0e0e10;
  --color-ink: #161618;
  --color-title: #111113;
  --color-text: #4a4a50;
  --color-text-muted: #6e6e76;
  --color-white: #fafafa;
  --color-purple: #8d3f72;
  --color-purple-hover: #6e3159;
  --color-purple-deep: #5a2348;
  --color-bg-nav: #fafafa;
  --color-bg-section: #ecebed;
  --color-bg-method: #e4e2e6;
  --color-bg-card: #f7f6f8;
  --color-bg-footer: #0e0e10;
  --color-border: #d4d2d8;
  --color-border-light: #e4e2e6;
  --shadow-card: 0 14px 30px rgba(14, 14, 16, 0.08);
  --shadow-nav: 0 2px 12px rgba(14, 14, 16, 0.06);
  --font-sans: "Source Sans 3", sans-serif;
  --font-display: "Source Serif 4", "Source Serif", Georgia, serif;
  --font-size-hero: 4.25rem;
  --font-size-lead: 1.4rem;
  --font-size-section-title: 2rem;
  --font-size-card-title: 1.2rem;
  --font-weight-title: 600;
  --space-section: 48px;
  --space-section-mobile: 32px;
  --container-max: 1100px;
  --nav-height: 80px;
  --lang-bar-height: 36px;
}

/* ==========================================================================
   Base
   ========================================================================== */

html {
  scroll-padding-top: calc(var(--lang-bar-height) + var(--nav-height));
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  margin: 0;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  padding-top: calc(var(--lang-bar-height) + var(--nav-height));
}

/* ==========================================================================
   Language bar
   ========================================================================== */

.lang-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1001;
  height: var(--lang-bar-height);
  background: var(--color-black);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
}

.lang-bar-inner {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lang-label {
  color: rgba(250, 250, 250, 0.7);
  margin-right: 0.25rem;
}

.lang-link {
  color: var(--color-white);
  text-decoration: none;
  font-weight: 600;
  padding: 0.2rem 0.4rem;
  border-radius: 2px;
  transition: background 0.2s ease, color 0.2s ease;
}

.lang-link:hover {
  background: rgba(250, 250, 250, 0.1);
  color: var(--color-white);
}

.lang-link.is-active {
  background: var(--color-purple);
  color: var(--color-white);
}

.lang-sep {
  color: rgba(250, 250, 250, 0.35);
  font-weight: 400;
}

/* ==========================================================================
   Wordmark (matches letterhead)
   ========================================================================== */

.wordmark {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.05;
  color: var(--color-ink);
  text-decoration: none;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-purple);
}

.wordmark-name,
.wordmark-llc {
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.wordmark-name {
  font-size: 0.95rem;
}

.wordmark-llc {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
}

.wordmark--footer {
  display: inline-flex;
  color: var(--color-white);
  border-bottom-color: var(--color-purple);
  margin-bottom: 1.5rem;
}

/* ==========================================================================
   Navigation
   ========================================================================== */

.main-nav {
  position: fixed;
  top: var(--lang-bar-height);
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--color-bg-nav);
  box-shadow: var(--shadow-nav);
  border-bottom: 1px solid var(--color-border-light);
}

.main-nav .nav-inner {
  position: relative;
}

.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.nav-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 28px;
}

.nav-links a {
  color: var(--color-ink);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--color-purple);
}

.nav-links li {
  margin: 0;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 0;
  position: relative;
}

.nav-toggle::before,
.nav-toggle::after {
  content: "";
  position: absolute;
  left: 8px;
  right: 8px;
  height: 2px;
  background: var(--color-ink);
  transition: transform 0.2s ease;
}

.nav-toggle::before {
  top: 12px;
}

.nav-toggle::after {
  bottom: 12px;
}

/* ==========================================================================
   Hero
   ========================================================================== */

header {
  background: var(--color-black);
  color: var(--color-white);
  padding: 88px 20px 96px;
  text-align: center;
}

.hero-title {
  font-family: var(--font-display);
  font-size: var(--font-size-hero);
  font-weight: 700;
  margin: 0 0 1.25rem;
  letter-spacing: -0.02em;
  line-height: 1.08;
  color: var(--color-white);
  text-rendering: optimizeLegibility;
}

.hero-line {
  display: block;
}

.hero-title::after {
  content: "";
  display: block;
  width: 72px;
  height: 2px;
  background: var(--color-purple);
  margin: 1.25rem auto 0;
}

.hero-tagline {
  font-size: var(--font-size-lead);
  max-width: 640px;
  margin: 0 auto 1.75rem;
  color: #c4c4ca;
  line-height: 1.5;
}

/* ==========================================================================
   Sections
   ========================================================================== */

section {
  padding: var(--space-section) 20px;
  max-width: var(--container-max);
  margin: auto;
}

.section-divider {
  margin: 2rem auto 0;
  border: none;
  height: 2px;
  background: var(--color-purple);
  opacity: 0.85;
  max-width: 72px;
}

h2 {
  margin-bottom: 20px;
  color: var(--color-title);
  font-family: var(--font-display);
  font-size: var(--font-size-section-title);
  font-weight: var(--font-weight-title);
  letter-spacing: -0.015em;
}

section p {
  max-width: 720px;
}

/* ==========================================================================
   Services grid
   ========================================================================== */

.areas-intro {
  margin: 0 0 1.25rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-title);
  line-height: 1.5;
}

.services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 24px;
}

/* ==========================================================================
   Cards
   ========================================================================== */

.card {
  border: 1px solid var(--color-border);
  padding: 28px;
  border-radius: 2px;
  background: var(--color-bg-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 16px;
  color: var(--color-purple);
}

.card-icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

.card h3 {
  margin: 0;
  color: var(--color-title);
  font-size: var(--font-size-card-title);
  font-weight: var(--font-weight-title);
}

/* ==========================================================================
   Strategy / method / sectors
   ========================================================================== */

.strategy,
.method,
.sectors-section,
.cta {
  max-width: none;
  padding-left: max(20px, calc((100% - var(--container-max)) / 2));
  padding-right: max(20px, calc((100% - var(--container-max)) / 2));
}

.strategy {
  background: var(--color-bg-section);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.method {
  background: var(--color-bg-method);
}

.approach-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.approach-card {
  position: relative;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  padding: 24px 24px 24px 56px;
  background: var(--color-bg-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.approach-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
  border-color: var(--color-purple);
}

.approach-card__number {
  position: absolute;
  left: 20px;
  top: 24px;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-purple);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.approach-card__title {
  margin: 0 0 12px;
  color: var(--color-title);
  font-size: var(--font-size-card-title);
  font-weight: var(--font-weight-title);
  line-height: 1.3;
}

.approach-card__desc {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-text);
}

.sectors-section {
  background: var(--color-bg-section);
  border-top: 1px solid var(--color-border-light);
}

.sectors-intro {
  margin: 0 0 1rem;
  color: var(--color-text);
  line-height: 1.6;
  max-width: 720px;
}

.sectors-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px 24px;
  list-style: none;
  padding-left: 0;
  margin: 0;
}

.sectors-list li {
  margin: 0;
  padding: 0.4rem 0 0.4rem 1rem;
  color: var(--color-text);
  font-size: 0.95rem;
  position: relative;
}

.sectors-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 6px;
  height: 2px;
  background: var(--color-purple);
}

/* ==========================================================================
   CTA
   ========================================================================== */

.cta {
  text-align: center;
  background: var(--color-black);
  color: var(--color-white);
  padding: var(--space-section) 20px;
}

.cta__lead {
  margin: 0 auto 1.25rem;
  font-size: 1.15rem;
  line-height: 1.6;
  color: #c4c4ca;
  max-width: 520px;
}

.cta__btn {
  margin: 0 0 1.5rem;
}

.cta__address {
  margin: 0 auto;
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--color-white);
  font-weight: 600;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

button,
.btn {
  display: inline-block;
  padding: 14px 30px;
  font-size: 16px;
  font-family: var(--font-sans);
  font-weight: 600;
  border: none;
  background: var(--color-purple);
  color: var(--color-white);
  cursor: pointer;
  border-radius: 2px;
  transition: background 0.2s ease, transform 0.2s ease;
  text-decoration: none;
  line-height: 1.4;
}

button:hover,
.btn:hover {
  background: var(--color-purple-hover);
  transform: translateY(-1px);
  color: var(--color-white);
}

button:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--color-purple);
  outline-offset: 2px;
}

/* ==========================================================================
   Lists
   ========================================================================== */

ul {
  padding-left: 20px;
}

li {
  margin-bottom: 14px;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: var(--color-bg-footer);
  color: rgba(250, 250, 250, 0.88);
  padding: 48px 20px 32px;
  font-size: 14px;
}

.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  text-align: center;
}

.footer-brand {
  margin-bottom: 0.5rem;
}

.footer-contact {
  margin-bottom: 1.5rem;
}

.footer-contact-label {
  display: block;
  font-weight: 600;
  color: rgba(250, 250, 250, 0.55);
  margin-bottom: 0.35rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.footer-contact-item {
  display: block;
  color: rgba(250, 250, 250, 0.92);
  margin-bottom: 0.15rem;
  text-decoration: none;
}

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

.footer-copy {
  margin: 0;
  font-size: 13px;
  color: rgba(250, 250, 250, 0.45);
  border-top: 1px solid rgba(250, 250, 250, 0.1);
  padding-top: 1.25rem;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 768px) {
  :root {
    --font-size-hero: 2.35rem;
    --font-size-section-title: 1.65rem;
  }

  .main-nav .nav-inner {
    flex-wrap: wrap;
  }

  .nav-links {
    display: none;
    flex-basis: 100%;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg-nav);
    padding: 20px;
    gap: 12px;
    box-shadow: var(--shadow-nav);
    border-top: 1px solid var(--color-border);
  }

  .main-nav.is-open .nav-links {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .main-nav.is-open .nav-toggle::before {
    transform: rotate(45deg);
    top: 19px;
  }

  .main-nav.is-open .nav-toggle::after {
    transform: rotate(-45deg);
    bottom: 19px;
  }

  header {
    padding: 56px 16px 64px;
  }

  .hero-title {
    font-size: var(--font-size-hero);
  }

  .hero-tagline {
    font-size: 1.05rem;
  }

  section {
    padding: var(--space-section-mobile) 16px;
  }

  h2 {
    font-size: var(--font-size-section-title);
  }

  .services {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .card {
    padding: 20px;
  }

  .approach-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 24px;
  }

  .approach-card {
    padding: 20px 20px 20px 52px;
  }

  .sectors-list {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .cta {
    padding: var(--space-section-mobile) 16px;
  }

  button,
  .btn {
    padding: 12px 24px;
    font-size: 15px;
  }
}