/* ── PrologueCA Design System ────────────────────────────────────────────── */
/* Palette: Slate & Ivory — from life_after_slate_ivory_final.html          */

:root {
  /* Palette */
  --graphite:   #2e3035;
  --slate:      #4a4e58;
  --fog:        #8a8f9a;
  --silver:     #b8bcc8;
  --ivory:      #f5f3ef;
  --ivory-dim:  #e8e6e2;
  --white:      #ffffff;
  --black:      #0a0b0d;

  /* Brand accent per brand */
  --life-accent:    #b8bcc8;   /* silver */
  --feet-accent:    #c9a96e;   /* warm gold */
  --method-accent:  #6bbfb5;   /* teal */
  --ai-accent:      #7ab3d4;   /* steel blue */

  /* Type */
  --font-serif:  'Cormorant Garamond', Georgia, serif;
  --font-sans:   'DM Sans', 'Helvetica Neue', Arial, sans-serif;

  /* Spacing */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-6:  24px;
  --space-8:  32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;
  --space-32: 128px;

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

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--black);
  color: var(--ivory);
  line-height: 1.6;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ── Utility ─────────────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.eyebrow {
  font-family: var(--font-sans);
  font-size: 10px;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--fog);
}

.rule {
  width: 40px;
  height: 1px;
  background: var(--silver);
  opacity: 0.4;
}

/* ── Navigation ──────────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.nav.scrolled {
  background: rgba(10, 11, 13, 0.92);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.05);
}

.nav-logo {
  display: flex;
  align-items: baseline;
  gap: 0;
}

.nav-logo .wordmark-serif {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 22px;
  color: var(--ivory);
  letter-spacing: 1px;
  line-height: 1;
}

.nav-logo .wordmark-sans {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 300;
  letter-spacing: 6px;
  color: var(--silver);
  text-transform: uppercase;
  line-height: 1;
  margin-left: 4px;
}

.nav-links {
  display: flex;
  gap: var(--space-8);
  list-style: none;
}

.nav-links a {
  font-size: 11px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: rgba(240, 238, 232, 0.4);
  transition: color 0.2s;
}

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

.nav-cta {
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--silver);
  border: 1px solid rgba(184,188,200,0.35);
  padding: 8px 20px;
  border-radius: 1px;
  transition: all 0.2s var(--ease);
}

.nav-cta:hover {
  border-color: var(--silver);
  color: var(--ivory);
}

/* ── Hero ─────────────────────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: var(--space-32) var(--space-6) var(--space-24);
  text-align: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 40%, rgba(46,48,53,0.6) 0%, transparent 70%);
  pointer-events: none;
}

.hero-noise {
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  pointer-events: none;
}

.hero-eyebrow {
  font-size: 9px;
  letter-spacing: 6px;
  text-transform: uppercase;
  color: var(--fog);
  margin-bottom: var(--space-8);
  opacity: 0;
  animation: fadeUp 1s var(--ease) 0.2s forwards;
}

.hero-lockup {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-bottom: var(--space-6);
  opacity: 0;
  animation: fadeUp 1s var(--ease) 0.4s forwards;
}

.hero-prologue {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(72px, 12vw, 148px);
  color: var(--ivory);
  letter-spacing: -1px;
  line-height: 0.9;
}

.hero-ca {
  font-family: var(--font-sans);
  font-size: clamp(36px, 6vw, 72px);
  font-weight: 200;
  letter-spacing: clamp(8px, 2vw, 20px);
  color: var(--silver);
  text-transform: uppercase;
  line-height: 1;
  align-self: flex-end;
  margin-bottom: 8px;
  margin-left: 12px;
}

.hero-rule {
  width: 60px;
  height: 1px;
  background: var(--silver);
  margin: var(--space-6) auto;
  opacity: 0;
  animation: heroRuleFade 1s var(--ease) 0.7s forwards;
}

.hero-tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(18px, 2.5vw, 28px);
  color: rgba(240,238,232,0.6);
  line-height: 1.4;
  max-width: 560px;
  margin: 0 auto var(--space-10);
  opacity: 0;
  animation: fadeUp 1s var(--ease) 0.8s forwards;
}

.hero-meta {
  font-size: 9px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--slate);
  opacity: 0;
  animation: fadeIn 1s var(--ease) 1.2s forwards;
}

.hero-scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  opacity: 0;
  animation: fadeIn 1s var(--ease) 1.6s forwards;
}

.hero-scroll span {
  font-size: 8px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--slate);
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--slate), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

/* ── Thesis Section ───────────────────────────────────────────────────────── */
.thesis {
  padding: clamp(80px, 12vw, 160px) var(--space-6);
  background: var(--graphite);
  position: relative;
  overflow: hidden;
}

.thesis::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(184,188,200,0.15), transparent);
}

.thesis-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(48px, 8vw, 120px);
  align-items: center;
}

.thesis-left .eyebrow { margin-bottom: var(--space-6); }

.thesis-statement {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(36px, 5vw, 64px);
  color: var(--ivory);
  line-height: 1.1;
  letter-spacing: -0.5px;
  margin-bottom: var(--space-6);
}

.thesis-body {
  font-size: 15px;
  line-height: 1.75;
  color: rgba(240,238,232,0.55);
  max-width: 44ch;
}

.thesis-stats {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.thesis-stat {
  padding-left: var(--space-6);
  border-left: 1px solid rgba(184,188,200,0.2);
}

.thesis-stat-num {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 52px;
  color: var(--ivory);
  line-height: 1;
  margin-bottom: var(--space-1);
}

.thesis-stat-label {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--fog);
}

/* ── Portfolio ────────────────────────────────────────────────────────────── */
.portfolio {
  padding: clamp(80px, 12vw, 140px) var(--space-6);
  background: var(--black);
  position: relative;
}

.portfolio::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(184,188,200,0.08), transparent);
}

.portfolio-header {
  max-width: 1200px;
  margin: 0 auto var(--space-16);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-6);
}

.portfolio-title {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(28px, 4vw, 48px);
  color: var(--ivory);
  letter-spacing: -0.5px;
}

.portfolio-subtitle {
  font-size: 13px;
  color: var(--fog);
  letter-spacing: 1px;
  max-width: 36ch;
  text-align: right;
  line-height: 1.6;
}

/* ── Brand Cards ─────────────────────────────────────────────────────────── */
.brands-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
}

.brand-card {
  position: relative;
  min-height: 480px;
  padding: clamp(36px, 5vw, 56px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.4s var(--ease);
}

.brand-card::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.4s var(--ease);
  background: rgba(255,255,255,0.03);
}

.brand-card:hover::after { opacity: 1; }
.brand-card:hover { transform: translateY(-2px); }

/* Card backgrounds */
.brand-card--media    { background: #1c1e22; }
.brand-card--health   { background: #151a14; }
.brand-card--education{ background: #0d1514; }
.brand-card--intelligence { background: #101520; }

.brand-card-top {}

.brand-vertical {
  font-size: 8px;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: var(--space-6);
  display: block;
}

.brand-card--media .brand-vertical      { color: rgba(184,188,200,0.5); }
.brand-card--health .brand-vertical     { color: rgba(201,169,110,0.5); }
.brand-card--education .brand-vertical  { color: rgba(107,191,181,0.5); }
.brand-card--intelligence .brand-vertical { color: rgba(122,179,212,0.5); }

/* Brand name lockups — matching the slide aesthetic */
.brand-name {
  margin-bottom: var(--space-8);
}

.brand-name-serif {
  font-family: var(--font-serif);
  font-style: italic;
  display: block;
  line-height: 1;
}

.brand-name-sans {
  font-family: var(--font-sans);
  font-weight: 200;
  letter-spacing: 6px;
  text-transform: uppercase;
  display: block;
  line-height: 1.1;
}

/* Media: life AFTER */
.brand-card--media .brand-name-serif    { font-size: clamp(52px, 6vw, 80px); color: var(--ivory); }
.brand-card--media .brand-name-sans     { font-size: clamp(28px, 3.5vw, 46px); color: var(--silver); letter-spacing: 10px; margin-top: 4px; }

/* Health: Feet SHEETS */
.brand-card--health .brand-name-serif   { font-size: clamp(44px, 5.5vw, 68px); color: var(--ivory); }
.brand-card--health .brand-name-sans    { font-size: clamp(20px, 2.8vw, 36px); color: var(--feet-accent); letter-spacing: 8px; margin-top: 4px; }

/* Education: the METHOD */
.brand-card--education .brand-name-serif  { font-size: clamp(44px, 5.5vw, 68px); color: var(--ivory); }
.brand-card--education .brand-name-sans   { font-size: clamp(20px, 2.8vw, 36px); color: var(--method-accent); letter-spacing: 8px; margin-top: 4px; }

/* Intelligence: prologue AI */
.brand-card--intelligence .brand-name-serif { font-size: clamp(44px, 5vw, 64px); color: var(--ivory); }
.brand-card--intelligence .brand-name-sans  { font-size: clamp(20px, 2.8vw, 36px); color: var(--ai-accent); letter-spacing: 10px; margin-top: 4px; }

.brand-divider {
  width: 32px;
  height: 1px;
  margin-bottom: var(--space-6);
  opacity: 0.3;
}

.brand-card--media .brand-divider       { background: var(--silver); }
.brand-card--health .brand-divider      { background: var(--feet-accent); }
.brand-card--education .brand-divider   { background: var(--method-accent); }
.brand-card--intelligence .brand-divider{ background: var(--ai-accent); }

.brand-tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(15px, 1.6vw, 18px);
  color: rgba(240,238,232,0.5);
  line-height: 1.4;
  margin-bottom: var(--space-8);
}

.brand-offerings {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-10);
}

.brand-offering {
  font-size: 11px;
  letter-spacing: 1.5px;
  color: rgba(240,238,232,0.25);
  text-transform: uppercase;
}

.brand-card-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-link {
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  transition: gap 0.2s var(--ease), color 0.2s;
}

.brand-card--media .brand-link          { color: var(--silver); }
.brand-card--health .brand-link         { color: var(--feet-accent); }
.brand-card--education .brand-link      { color: var(--method-accent); }
.brand-card--intelligence .brand-link   { color: var(--ai-accent); }

.brand-card:hover .brand-link { gap: var(--space-3); }

.brand-link-arrow {
  font-size: 14px;
  transition: transform 0.2s var(--ease);
}

.brand-card:hover .brand-link-arrow { transform: translateX(4px); }

/* Card decorative corner mark */
.brand-card-corner {
  width: 40px;
  height: 40px;
  opacity: 0.08;
}

/* ── Philosophy / Quote Strip ─────────────────────────────────────────────── */
.philosophy {
  padding: clamp(80px, 10vw, 120px) var(--space-6);
  background: var(--graphite);
  position: relative;
  overflow: hidden;
}

.philosophy::before, .philosophy::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(184,188,200,0.12), transparent);
}

.philosophy::before { top: 0; }
.philosophy::after  { bottom: 0; }

.philosophy-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.philosophy-quote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(24px, 4vw, 44px);
  color: var(--ivory);
  line-height: 1.25;
  letter-spacing: -0.3px;
  margin-bottom: var(--space-8);
}

.philosophy-attribution {
  font-size: 10px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--fog);
}

/* ── Contact / Footer ─────────────────────────────────────────────────────── */
.contact {
  padding: clamp(80px, 10vw, 120px) var(--space-6) var(--space-24);
  background: var(--black);
  position: relative;
}

.contact::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(184,188,200,0.08), transparent);
}

.contact-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(48px, 8vw, 120px);
  align-items: start;
}

.contact-left .eyebrow { margin-bottom: var(--space-6); }

.contact-heading {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(32px, 4vw, 52px);
  color: var(--ivory);
  line-height: 1.1;
  margin-bottom: var(--space-6);
}

.contact-body {
  font-size: 14px;
  color: var(--fog);
  line-height: 1.7;
  margin-bottom: var(--space-8);
}

.contact-email {
  font-size: 15px;
  color: var(--silver);
  letter-spacing: 0.5px;
  border-bottom: 1px solid rgba(184,188,200,0.25);
  padding-bottom: var(--space-2);
  display: inline-block;
  transition: color 0.2s, border-color 0.2s;
}

.contact-email:hover {
  color: var(--ivory);
  border-color: var(--silver);
}

.contact-right {
  padding-top: var(--space-12);
}

.contact-brand-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.contact-brand-row {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: opacity 0.2s;
}

.contact-brand-row:first-child { border-top: 1px solid rgba(255,255,255,0.05); }

.contact-brand-row:hover { opacity: 0.7; }

.contact-brand-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  flex-shrink: 0;
}

.contact-brand-name {
  flex: 1;
}

.contact-brand-name .serif { font-family: var(--font-serif); font-style: italic; font-size: 15px; color: var(--ivory); }
.contact-brand-name .sans  { font-family: var(--font-sans); font-size: 11px; letter-spacing: 3px; text-transform: uppercase; }

.contact-brand-category {
  font-size: 9px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--slate);
}

/* ── Footer ──────────────────────────────────────────────────────────────── */
.footer {
  padding: var(--space-8) var(--space-6);
  border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.footer-copy {
  font-size: 11px;
  color: var(--slate);
  letter-spacing: 0.5px;
}

.footer-lockup {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 14px;
  color: var(--fog);
  letter-spacing: 1px;
}

/* ── Animations ──────────────────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes heroRuleFade {
  from { opacity: 0; }
  to   { opacity: 0.3; }
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; }
  50%       { opacity: 0.8; }
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .thesis-inner        { grid-template-columns: 1fr; gap: var(--space-12); }
  .thesis-body         { max-width: none; }
  .thesis-stats        { flex-direction: row; flex-wrap: wrap; gap: var(--space-6); }
  .portfolio-header    { flex-direction: column; align-items: flex-start; }
  .portfolio-subtitle  { text-align: left; }
  .brands-grid         { grid-template-columns: 1fr; }
  .contact-inner       { grid-template-columns: 1fr; }
  .contact-right       { padding-top: 0; }
}

@media (max-width: 600px) {
  .nav-links           { display: none; }
  .hero-lockup         { flex-direction: column; gap: var(--space-2); align-items: center; }
  .hero-prologue       { font-size: clamp(64px, 18vw, 96px); }
  .hero-ca             { margin-left: 0; align-self: center; margin-bottom: 0; font-size: clamp(22px, 7vw, 40px); letter-spacing: clamp(8px, 3vw, 14px); }
  .footer-inner        { flex-direction: column; gap: var(--space-2); text-align: center; }
}