/* ==========================================================================
   EVENTUOLOGY — Main Stylesheet
   Palette: Deep blue-charcoal + warm gold on alternating light/dark sections
   Fonts: Outfit (display) + Inter (body) via Google Fonts
   Signature: Structural bracket motif [ ] on section labels
   ========================================================================== */

/* --- Custom Properties --------------------------------------------------- */
:root {
  --color-dark: #1B2433;
  --color-dark-lighter: #243044;
  --color-gold: #C8963E;
  --color-gold-hover: #D9A94F;
  --color-gold-subtle: rgba(200, 150, 62, 0.12);
  --color-bg: #FAFAF8;
  --color-bg-alt: #F0EEEA;
  --color-text: #2D3142;
  --color-text-light: #6B7280;
  --color-text-on-dark: #D1D5DB;
  --color-white: #FFFFFF;
  --color-border: #DDD9D1;

  --font-display: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  --max-width: 1160px;
  --section-padding: 6rem 1.5rem;
  --transition: 0.25s ease;
}

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

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

ul { list-style: none; }

/* --- Typography ---------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.25rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.05rem; }

p + p { margin-top: 1rem; }

/* Section eyebrow label with bracket motif — the signature element */
.section-label {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 1rem;
  display: inline-block;
}

.section-label::before { content: '[  '; }
.section-label::after  { content: '  ]'; }

.section-heading {
  margin-bottom: 1.25rem;
}

.section-intro {
  max-width: 680px;
  color: var(--color-text-light);
  margin-bottom: 3rem;
  font-size: 1.05rem;
}

/* On dark backgrounds */
.on-dark .section-intro {
  color: var(--color-text-on-dark);
}

/* --- Layout Utilities ---------------------------------------------------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: var(--section-padding);
}

.section--dark {
  background: var(--color-dark);
  color: var(--color-white);
}

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

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

.text-center { text-align: center; }

/* --- Buttons ------------------------------------------------------------- */
.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  padding: 0.85rem 2rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

.btn--gold {
  background: var(--color-gold);
  color: var(--color-white);
}

.btn--gold:hover,
.btn--gold:focus-visible {
  background: var(--color-gold-hover);
  transform: translateY(-1px);
}

.btn--outline {
  background: transparent;
  color: var(--color-gold);
  border: 1.5px solid var(--color-gold);
}

.btn--outline:hover,
.btn--outline:focus-visible {
  background: var(--color-gold);
  color: var(--color-white);
}

/* --- Skip Link (accessibility) ------------------------------------------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--color-gold);
  color: var(--color-white);
  padding: 0.5rem 1rem;
  font-family: var(--font-display);
  font-weight: 600;
  z-index: 1000;
}

.skip-link:focus {
  top: 0.5rem;
}

/* =========================================================================
   NAVIGATION
   ========================================================================= */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 0;
  transition: background var(--transition), padding var(--transition),
              box-shadow var(--transition);
}

.site-nav.scrolled {
  background: var(--color-dark);
  padding: 0.8rem 0;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}

.site-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.14em;
  color: var(--color-white);
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 2.25rem;
  align-items: center;
}

.nav-links a {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.75);
  text-transform: uppercase;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-gold);
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--color-white);
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after {
  width: 100%;
}

.nav-links a.active {
  color: var(--color-white);
}

.nav-links a.active::after {
  width: 100%;
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 110;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  margin: 5px 0;
  transition: all 0.3s ease;
}

/* =========================================================================
   HERO
   ========================================================================= */
.hero {
  background: var(--color-dark);
  padding: 10rem 1.5rem 6rem;
  min-height: 85vh;
  display: flex;
  align-items: center;
}

.hero .container {
  max-width: var(--max-width);
  width: 100%;
}

.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 2rem;
}

.hero-tagline {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.8rem, 4.5vw, 3rem);
  line-height: 1.3;
  color: var(--color-white);
  max-width: 800px;
  margin-bottom: 2rem;
}

.hero-description {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--color-text-on-dark);
  max-width: 620px;
  margin-bottom: 2.5rem;
}

.hero-cta-row {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

/* =========================================================================
   WHAT WE DO — Three Lanes
   ========================================================================= */
.lanes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.lane-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-gold);
  padding: 2.25rem 2rem;
  transition: box-shadow var(--transition), transform var(--transition);
}

.lane-card:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
  transform: translateY(-2px);
}

.lane-card-label {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 0.75rem;
}

.lane-card h3 {
  margin-bottom: 0.75rem;
  color: var(--color-dark);
}

.lane-card p {
  font-size: 0.92rem;
  color: var(--color-text-light);
  margin-bottom: 1.25rem;
  line-height: 1.65;
}

.lane-services {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.lane-services li {
  font-size: 0.88rem;
  color: var(--color-text);
  padding-left: 1.1rem;
  position: relative;
}

.lane-services li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-gold);
  font-size: 0.85rem;
}

/* =========================================================================
   HOW WE WORK — Engagement Models
   ========================================================================= */
.models-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.model-item {
  padding: 1.75rem 1.5rem;
  border-left: 2px solid var(--color-gold);
}

.model-item h4 {
  color: var(--color-dark);
  margin-bottom: 0.5rem;
}

.model-item p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* =========================================================================
   WHO THIS IS FOR — Two Audience Blocks
   ========================================================================= */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

.audience-block {
  padding: 2.5rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  position: relative;
}

.audience-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--color-gold);
}

.audience-block h3 {
  color: var(--color-dark);
  margin-bottom: 1rem;
  font-size: 1.15rem;
}

.audience-block p {
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* =========================================================================
   ABOUT — The Founder
   ========================================================================= */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about-quote {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-white);
  margin-bottom: 1.5rem;
  position: relative;
  padding-left: 1.5rem;
  border-left: 2px solid var(--color-gold);
}

.about-text p {
  font-size: 0.95rem;
  color: var(--color-text-on-dark);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.about-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-white);
  margin-bottom: 0.15rem;
}

.about-title {
  font-size: 0.85rem;
  color: var(--color-gold);
  margin-bottom: 1.5rem;
}

.about-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.88rem;
  color: var(--color-gold);
  letter-spacing: 0.04em;
  transition: color var(--transition);
}

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

.about-link svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* =========================================================================
   SECTOR EXPERIENCE — Tag Strip
   ========================================================================= */
.sector-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.sector-tag {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 0.6rem 1.35rem;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  background: var(--color-white);
  transition: all var(--transition);
}

.sector-tag:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

/* =========================================================================
   CONTACT / FOOTER
   ========================================================================= */
.site-footer {
  background: var(--color-dark);
  color: var(--color-white);
  padding: 5rem 1.5rem 2rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.footer-brand .tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.9rem;
  color: var(--color-gold);
}

.footer-contact h4,
.footer-links h4 {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 1rem;
}

.footer-contact a,
.footer-links a {
  display: block;
  font-size: 0.9rem;
  color: var(--color-text-on-dark);
  margin-bottom: 0.6rem;
  transition: color var(--transition);
}

.footer-contact a:hover,
.footer-links a:hover {
  color: var(--color-gold);
}

.footer-bottom {
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.footer-legal {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer-social {
  display: flex;
  gap: 1rem;
}

.footer-social a {
  color: var(--color-text-on-dark);
  transition: color var(--transition);
}

.footer-social a:hover {
  color: var(--color-gold);
}

.footer-social svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* =========================================================================
   PLACEHOLDER PAGE
   ========================================================================= */
.placeholder-page {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8rem 1.5rem 4rem;
  text-align: center;
}

.placeholder-page h1 {
  margin-bottom: 1rem;
}

.placeholder-page p {
  color: var(--color-text-light);
  margin-bottom: 2rem;
  font-size: 1.05rem;
}

/* =========================================================================
   RESPONSIVE — Tablet (max 960px)
   ========================================================================= */
@media (max-width: 960px) {
  :root {
    --section-padding: 4.5rem 1.5rem;
  }

  .lanes-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .models-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .audience-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* =========================================================================
   RESPONSIVE — Mobile (max 640px)
   ========================================================================= */
@media (max-width: 640px) {
  :root {
    --section-padding: 3.5rem 1.25rem;
  }

  .hero {
    padding: 7rem 1.25rem 4rem;
    min-height: auto;
  }

  .hero-tagline {
    font-size: 1.6rem;
  }

  .hero-description {
    font-size: 1rem;
  }

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

  .lane-card {
    padding: 1.75rem 1.5rem;
  }

  .audience-block {
    padding: 1.75rem 1.5rem;
  }

  .about-quote {
    font-size: 1.2rem;
  }

  .sector-tags {
    justify-content: flex-start;
  }

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

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

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 280px;
    background: var(--color-dark);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 2rem 2.5rem;
    gap: 1.75rem;
    transform: translateX(100%);
    transition: transform 0.35s ease;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.2);
  }

  .nav-links.open {
    transform: translateX(0);
  }

  .nav-links a {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.85);
  }

  /* Hamburger → X animation */
  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  /* Overlay behind mobile nav */
  .nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 90;
  }

  .nav-overlay.active {
    display: block;
  }
}

/* --- Focus states (accessibility) ---------------------------------------- */
*:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

/* --- Reduced motion ------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}