/* ============================================================
   TourismHistory.com — styles.css
   Author: Heritage Digital Ventures
   Philosophy: "The Smithsonian meets Airbnb"
   Palette: Parchment #F4F1EA · Navy #1A2A3A · Gold #C5A059
   ============================================================ */

/* === CSS CUSTOM PROPERTIES ================================ */
:root {
  /* Brand Palette */
  --clr-parchment:    #F4F1EA;
  --clr-parchment-dk: #EAE5D8;
  --clr-navy:         #1A2A3A;
  --clr-navy-lt:      #253D55;
  --clr-navy-dk:      #0F1A25;
  --clr-gold:         #C5A059;
  --clr-gold-lt:      #D4B57A;
  --clr-gold-dk:      #A0802C;
  --clr-white:        #FFFFFF;
  --clr-text:         #2C2C2C;
  --clr-text-muted:   #6B6560;
  --clr-border:       rgba(197, 160, 89, 0.25);
  --clr-border-light: rgba(197, 160, 89, 0.12);

  /* Typography */
  --font-serif:  'Playfair Display', Georgia, serif;
  --font-sans:   'Montserrat', 'Helvetica Neue', Arial, sans-serif;

  /* Fluid Type Scale */
  --text-xs:   clamp(0.7rem,  1.5vw, 0.75rem);
  --text-sm:   clamp(0.8rem,  2vw,   0.875rem);
  --text-base: clamp(0.9rem,  2.5vw, 1rem);
  --text-md:   clamp(1rem,    3vw,   1.125rem);
  --text-lg:   clamp(1.1rem,  3.5vw, 1.25rem);
  --text-xl:   clamp(1.3rem,  4vw,   1.5rem);
  --text-2xl:  clamp(1.5rem,  5vw,   2rem);
  --text-3xl:  clamp(2rem,    6vw,   3rem);
  --text-4xl:  clamp(2.5rem,  8vw,   4.5rem);
  --text-hero: clamp(3rem,   10vw,   6.5rem);

  /* Spacing */
  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  1.5rem;
  --space-lg:  2.5rem;
  --space-xl:  4rem;
  --space-2xl: 7rem;
  --space-3xl: 10rem;

  /* Layout */
  --max-width:     1200px;
  --max-width-sm:  800px;

  /* Effects */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 2px 8px rgba(26, 42, 58, 0.08);
  --shadow-md: 0 8px 32px rgba(26, 42, 58, 0.12);
  --shadow-lg: 0 20px 60px rgba(26, 42, 58, 0.18);
  --shadow-gold: 0 4px 24px rgba(197, 160, 89, 0.2);

  /* Transitions */
  --transition-fast:   150ms ease;
  --transition-base:   300ms ease;
  --transition-slow:   600ms ease;
}

/* === RESET & BASE ========================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--clr-text);
  background-color: var(--clr-parchment);
  overflow-x: hidden;
}

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

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

ul { list-style: none; }

button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

:focus-visible {
  outline: 2px solid var(--clr-gold);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* === GRAIN TEXTURE OVERLAY ================================ */
.grain-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px 200px;
  mix-blend-mode: multiply;
}

/* === LAYOUT UTILITIES ===================================== */
.container {
  width: min(var(--max-width), 100% - 2rem);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}

/* === SCROLL ANIMATIONS ==================================== */
.fade-in-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.pillars-grid .pillar-card:nth-child(1) { transition-delay: 0.05s; }
.pillars-grid .pillar-card:nth-child(2) { transition-delay: 0.15s; }
.pillars-grid .pillar-card:nth-child(3) { transition-delay: 0.25s; }
.pillars-grid .pillar-card:nth-child(4) { transition-delay: 0.35s; }
.vault-grid .vault-card:nth-child(1)    { transition-delay: 0.05s; }
.vault-grid .vault-card:nth-child(2)    { transition-delay: 0.2s; }
.vault-grid .vault-card:nth-child(3)    { transition-delay: 0.35s; }

/* === TYPOGRAPHY =========================================== */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

/* === BUTTONS ============================================== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background: var(--clr-navy);
  color: var(--clr-parchment);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-sm);
  border: 2px solid var(--clr-navy);
  transition: background var(--transition-base), color var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
  white-space: nowrap;
}

.btn-primary:hover {
  background: var(--clr-gold);
  border-color: var(--clr-gold);
  color: var(--clr-navy);
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
}

.btn-primary:active { transform: translateY(0); }

.btn-arrow { transition: transform var(--transition-fast); }
.btn-primary:hover .btn-arrow { transform: translateX(4px); }

.btn-large {
  font-size: var(--text-base);
  padding: 1.125rem 2.5rem;
}

/* === NAVIGATION =========================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.site-header.scrolled {
  background: rgba(26, 42, 58, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(197, 160, 89, 0.2);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem clamp(1rem, 4vw, 2.5rem);
  max-width: var(--max-width);
  margin-inline: auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--clr-parchment);
  font-family: var(--font-serif);
  font-size: var(--text-md);
  font-weight: 700;
}

.logo-icon {
  font-size: 1.4em;
  color: var(--clr-gold);
  line-height: 1;
}

.logo-dot { color: var(--clr-gold); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-links a {
  color: rgba(244, 241, 234, 0.8);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.03em;
  position: relative;
  padding-bottom: 2px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--clr-gold);
  transition: width var(--transition-base);
}

.nav-links a:hover { color: var(--clr-parchment); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  background: transparent !important;
  border: 1px solid var(--clr-gold) !important;
  color: var(--clr-gold) !important;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 600 !important;
  letter-spacing: 0.04em;
  transition: background var(--transition-base) !important, color var(--transition-base) !important;
}

.nav-cta::after { display: none; }
.nav-cta:hover {
  background: var(--clr-gold) !important;
  color: var(--clr-navy) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-parchment);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* === HERO SECTION ========================================= */
.hero {
  position: relative;
  min-height: 100svh;
  background-color: var(--clr-navy-dk);
  background-image:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(197, 160, 89, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 100% 80%, rgba(37, 61, 85, 0.4) 0%, transparent 60%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 8rem 1.5rem 4rem;
}

/* Decorative world map background */
.hero-bg-map {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 900 500'%3E%3Cg fill='none' stroke='rgba(197,160,89,0.06)' stroke-width='0.5'%3E%3Cellipse cx='450' cy='250' rx='440' ry='240'/%3E%3Cellipse cx='450' cy='250' rx='330' ry='180'/%3E%3Cellipse cx='450' cy='250' rx='220' ry='120'/%3E%3Cellipse cx='450' cy='250' rx='110' ry='60'/%3E%3Cline x1='10' y1='250' x2='890' y2='250'/%3E%3Cline x1='450' y1='10' x2='450' y2='490'/%3E%3Cline x1='10' y1='125' x2='890' y2='125'/%3E%3Cline x1='10' y1='375' x2='890' y2='375'/%3E%3Cline x1='225' y1='10' x2='225' y2='490'/%3E%3Cline x1='675' y1='10' x2='675' y2='490'/%3E%3C/g%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  opacity: 0.5;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: min(800px, 100%);
}

.hero-eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clr-gold);
  border: 1px solid var(--clr-border);
  padding: 0.4rem 1.2rem;
  border-radius: 50px;
  margin-bottom: 1.5rem;
  background: rgba(197, 160, 89, 0.06);
}

.hero-headline {
  font-size: var(--text-hero);
  font-weight: 900;
  color: var(--clr-parchment);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero-headline em {
  font-style: italic;
  color: var(--clr-gold);
}

.hero-subheadline {
  font-family: var(--font-sans);
  font-size: var(--text-lg);
  font-weight: 300;
  color: rgba(244, 241, 234, 0.75);
  line-height: 1.6;
  max-width: 620px;
  margin-inline: auto;
  margin-bottom: 3rem;
  min-height: 3.5rem;
}

.typing-cursor {
  display: inline-block;
  color: var(--clr-gold);
  animation: blink 1s step-end infinite;
  font-weight: 200;
  margin-left: 1px;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* === WAITLIST FORM ======================================== */
.hero-form-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.waitlist-form { width: 100%; max-width: 580px; }

.form-group {
  display: flex;
  gap: 0;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(197, 160, 89, 0.3);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.form-group:focus-within {
  border-color: var(--clr-gold);
  box-shadow: 0 0 0 3px rgba(197, 160, 89, 0.15);
}

.form-group input[type="email"] {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 1rem 1.25rem;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--clr-parchment);
  min-width: 0;
}

.form-group input::placeholder { color: rgba(244, 241, 234, 0.4); }

.form-group .btn-primary {
  border-radius: 0;
  border-top: none;
  border-right: none;
  border-bottom: none;
  border-left: 1px solid rgba(197, 160, 89, 0.2);
  flex-shrink: 0;
}

.form-disclaimer {
  font-size: var(--text-xs);
  color: rgba(244, 241, 234, 0.4);
  text-align: center;
  margin-top: 0.75rem;
  font-style: italic;
}

.form-status {
  text-align: center;
  font-size: var(--text-sm);
  font-weight: 500;
  min-height: 1.5rem;
}

.form-status.success { color: #7fcfb0; }
.form-status.error   { color: #e87c6f; }

/* Social proof */
.waitlist-social-proof {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: rgba(244, 241, 234, 0.6);
  font-size: var(--text-sm);
}

.waitlist-social-proof strong { color: var(--clr-gold); }

.avatars { display: flex; }

.avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--clr-navy-dk);
  background: var(--clr-navy-lt);
  color: var(--clr-gold);
  font-size: 0.7rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.avatar + .avatar { margin-left: -8px; }
.avatar-4 { background: var(--clr-gold-dk); color: var(--clr-parchment); font-size: 0.65rem; }

/* Scroll cue */
.scroll-cue {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  margin-top: 3rem;
  color: rgba(244, 241, 234, 0.3);
  font-size: var(--text-xs);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(197, 160, 89, 0.5), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.5; transform: scaleY(1); }
  50%       { opacity: 1;   transform: scaleY(1.1); }
}

/* Hero Stamp */
.hero-stamp {
  position: absolute;
  top: 15%;
  right: 6%;
  width: clamp(80px, 12vw, 130px);
  height: clamp(80px, 12vw, 130px);
  border: 3px solid var(--clr-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: rotate(15deg);
  opacity: 0.6;
  animation: stampFloat 6s ease-in-out infinite;
}

.stamp-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  color: var(--clr-gold);
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: 0.1em;
}

.stamp-top, .stamp-bottom {
  font-size: var(--text-xs);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  line-height: 1.2;
}

.stamp-main {
  font-family: var(--font-serif);
  font-size: clamp(1.2rem, 3.5vw, 1.8rem);
  font-weight: 900;
  line-height: 1;
  margin: 0.1em 0;
}

@keyframes stampFloat {
  0%, 100% { transform: rotate(15deg) translateY(0); }
  50%       { transform: rotate(15deg) translateY(-8px); }
}

/* === SECTION SHARED STYLES ================================ */
.section-header {
  text-align: center;
  max-width: var(--max-width-sm);
  margin-inline: auto;
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.section-label {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clr-gold);
  margin-bottom: 0.75rem;
}

.section-heading {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--clr-navy);
  margin-bottom: 1rem;
  line-height: 1.15;
}

.section-subtext {
  font-size: var(--text-md);
  color: var(--clr-text-muted);
  line-height: 1.7;
}

/* === FOUR PILLARS ========================================= */
.pillars {
  padding-block: var(--space-2xl);
  background: var(--clr-parchment);
  position: relative;
}

.pillars::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--clr-gold), transparent);
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 270px), 1fr));
  gap: 1.5rem;
}

.pillar-card {
  position: relative;
  background: var(--clr-white);
  border: 1px solid var(--clr-border-light);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.75rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  cursor: default;
}

.pillar-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(197, 160, 89, 0.05) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.pillar-card:hover,
.pillar-card:focus {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--clr-gold);
  outline: none;
}

.pillar-card:hover::before,
.pillar-card:focus::before { opacity: 1; }

/* Featured pillar */
.pillar-featured {
  background: var(--clr-navy);
  border-color: var(--clr-gold);
}

.pillar-featured .pillar-number { color: rgba(197, 160, 89, 0.2); }
.pillar-featured .pillar-title  { color: var(--clr-parchment); }
.pillar-featured .pillar-desc   { color: rgba(244, 241, 234, 0.7); }
.pillar-featured .tag {
  background: rgba(197, 160, 89, 0.15);
  color: var(--clr-gold-lt);
  border-color: rgba(197, 160, 89, 0.3);
}
.pillar-featured .pillar-link   { color: var(--clr-gold-lt); }
.pillar-featured .pillar-link:hover { color: var(--clr-parchment); }

/* Then & Now card — grayscale hover */
.pillar-then-now {
  background-color: var(--clr-white);
  overflow: hidden;
}

.then-now-icon {
  color: #aaa;
  font-size: 2rem;
  transition: color var(--transition-slow);
}

.pillar-then-now:hover .then-now-icon,
.pillar-then-now:focus .then-now-icon {
  color: var(--clr-gold);
}

/* Then & Now: image strip effect */
.pillar-then-now::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, #888 50%, var(--clr-gold) 50%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.pillar-then-now:hover::after,
.pillar-then-now:focus::after {
  transform: scaleX(1);
}

/* Pillar inner elements */
.pillar-number {
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  font-family: var(--font-serif);
  font-size: 3.5rem;
  font-weight: 900;
  color: rgba(197, 160, 89, 0.1);
  line-height: 1;
  letter-spacing: -0.02em;
  user-select: none;
}

.pillar-icon {
  font-size: 2.25rem;
  line-height: 1;
  margin-bottom: 0.25rem;
}

.pillar-badge {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  background: var(--clr-parchment-dk);
  padding: 0.2rem 0.6rem;
  border-radius: 50px;
  border: 1px solid var(--clr-border);
  width: fit-content;
}

.pillar-badge--gold {
  background: rgba(197, 160, 89, 0.12);
  color: var(--clr-gold-dk);
  border-color: rgba(197, 160, 89, 0.4);
}

.pillar-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--clr-navy);
  line-height: 1.2;
  margin-top: 0.25rem;
}

.pillar-desc {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  line-height: 1.7;
  flex-grow: 1;
}

.pillar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

.tag {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--clr-text-muted);
  background: var(--clr-parchment);
  border: 1px solid var(--clr-border);
  padding: 0.2rem 0.6rem;
  border-radius: 50px;
}

.pillar-link {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--clr-gold-dk);
  margin-top: auto;
  padding-top: 0.5rem;
  transition: color var(--transition-fast), gap var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.pillar-link:hover { color: var(--clr-navy); }

/* === VAULT SECTION ======================================== */
.vault {
  padding-block: var(--space-2xl);
  background: var(--clr-navy-dk);
  position: relative;
  overflow: hidden;
}

.vault::before {
  content: '"';
  position: absolute;
  top: -2rem;
  left: -1rem;
  font-family: var(--font-serif);
  font-size: 30rem;
  font-weight: 900;
  color: rgba(197, 160, 89, 0.02);
  line-height: 1;
  user-select: none;
  pointer-events: none;
}

.vault .section-heading { color: var(--clr-parchment); }
.vault .section-subtext  { color: rgba(244, 241, 234, 0.55); }

.vault-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: 1.5rem;
}

.vault-card {
  background: rgba(37, 61, 85, 0.6);
  border: 1px solid rgba(197, 160, 89, 0.12);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  cursor: default;
  display: flex;
  flex-direction: column;
}

.vault-card:hover,
.vault-card:focus {
  transform: translateY(-5px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
  border-color: rgba(197, 160, 89, 0.35);
  outline: none;
}

.vault-card-image {
  position: relative;
  height: 200px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 1.25rem;
  overflow: hidden;
}

/* Then & Now: grayscale-to-color on vault card hover */
.vault-img-1 {
  background:
    linear-gradient(to top, rgba(26, 42, 58, 0.7) 0%, rgba(0,0,0,0.1) 50%),
    radial-gradient(ellipse at 70% 30%, #8B7355 0%, #5C4A2A 40%, #2C2010 100%);
  filter: saturate(0.3) sepia(0.4);
  transition: filter var(--transition-slow);
}
.vault-img-2 {
  background:
    linear-gradient(to top, rgba(26, 42, 58, 0.7) 0%, rgba(0,0,0,0.1) 50%),
    radial-gradient(ellipse at 30% 60%, #6B7B7A 0%, #3A4A4A 40%, #1A2020 100%);
  filter: saturate(0.3) sepia(0.3);
  transition: filter var(--transition-slow);
}
.vault-img-3 {
  background:
    linear-gradient(to top, rgba(26, 42, 58, 0.7) 0%, rgba(0,0,0,0.1) 50%),
    radial-gradient(ellipse at 50% 40%, #7A6A8B 0%, #4A3A5A 40%, #201520 100%);
  filter: saturate(0.3) sepia(0.2);
  transition: filter var(--transition-slow);
}

.vault-card:hover .vault-img-1,
.vault-card:focus .vault-img-1 { filter: saturate(1.2) sepia(0); }
.vault-card:hover .vault-img-2,
.vault-card:focus .vault-img-2 { filter: saturate(1.2) sepia(0); }
.vault-card:hover .vault-img-3,
.vault-card:focus .vault-img-3 { filter: saturate(1.2) sepia(0); }

/* Add decorative lines to card images */
.vault-img-1::before,
.vault-img-2::before,
.vault-img-3::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    rgba(197, 160, 89, 0.03) 3px,
    rgba(197, 160, 89, 0.03) 4px
  );
  pointer-events: none;
}

.vault-category {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-gold);
  background: rgba(26, 42, 58, 0.7);
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  border: 1px solid rgba(197, 160, 89, 0.3);
  backdrop-filter: blur(4px);
}

.vault-year {
  font-family: var(--font-serif);
  font-size: var(--text-xs);
  font-style: italic;
  color: rgba(244, 241, 234, 0.55);
}

.vault-card-body {
  padding: 1.5rem 1.75rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex-grow: 1;
}

.vault-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.vault-tag {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--clr-gold);
  letter-spacing: 0.05em;
}

.vault-read-time {
  font-size: var(--text-xs);
  color: rgba(244, 241, 234, 0.35);
  margin-left: auto;
}

.vault-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--clr-parchment);
  line-height: 1.3;
}

.vault-excerpt {
  font-size: var(--text-sm);
  color: rgba(244, 241, 234, 0.6);
  line-height: 1.7;
  flex-grow: 1;
}

.vault-link {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--clr-gold);
  letter-spacing: 0.03em;
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: gap var(--transition-fast), color var(--transition-fast);
}

.vault-link:hover { color: var(--clr-gold-lt); gap: 0.6rem; }

/* === ROADMAP / COUNTDOWN ================================== */
.roadmap {
  padding-block: var(--space-2xl);
  background: var(--clr-parchment);
  position: relative;
}

.roadmap::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--clr-gold), transparent);
}

/* Countdown */
.countdown-wrapper {
  text-align: center;
  margin-bottom: clamp(3rem, 8vw, 5rem);
}

.countdown-label {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clr-gold);
  margin-bottom: 1.25rem;
}

.countdown-timer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.countdown-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--clr-navy);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 1.25rem clamp(1rem, 3vw, 2rem);
  min-width: clamp(70px, 15vw, 100px);
  position: relative;
  overflow: hidden;
}

.countdown-unit::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0; right: 0;
  height: 1px;
  background: rgba(197, 160, 89, 0.1);
}

.countdown-number {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 900;
  color: var(--clr-parchment);
  line-height: 1;
  letter-spacing: -0.02em;
  display: block;
  transition: transform 0.2s ease;
}

.countdown-unit-label {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-gold);
  margin-top: 0.5rem;
}

.countdown-sep {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--clr-gold);
  align-self: flex-start;
  margin-top: 1.25rem;
  line-height: 1;
}

.countdown-target-date {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  font-style: italic;
}

/* Timeline */
.timeline {
  max-width: 720px;
  margin-inline: auto;
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  left: clamp(20px, 4vw, 28px);
  top: 0; bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--clr-gold), rgba(197, 160, 89, 0.15));
}

.timeline-item {
  display: flex;
  gap: clamp(1.25rem, 4vw, 2rem);
  padding-bottom: 2.5rem;
  position: relative;
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-marker {
  flex-shrink: 0;
  width: clamp(40px, 8vw, 56px);
  height: clamp(40px, 8vw, 56px);
  border-radius: 50%;
  background: var(--clr-parchment-dk);
  border: 2px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-md);
  font-weight: 700;
  color: var(--clr-text-muted);
  z-index: 1;
  transition: background var(--transition-base), border-color var(--transition-base);
}

.timeline-done .timeline-marker {
  background: var(--clr-gold);
  border-color: var(--clr-gold);
  color: var(--clr-navy);
  font-size: var(--text-md);
}

.timeline-active .timeline-marker {
  background: var(--clr-navy);
  border-color: var(--clr-gold);
  color: var(--clr-gold);
}

.timeline-marker--pulse {
  box-shadow: 0 0 0 0 rgba(197, 160, 89, 0.4);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0   rgba(197, 160, 89, 0.4); }
  70%  { box-shadow: 0 0 0 12px rgba(197, 160, 89, 0);   }
  100% { box-shadow: 0 0 0 0   rgba(197, 160, 89, 0);    }
}

.timeline-content { padding-top: 0.5rem; }

.timeline-period {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-gold);
  margin-bottom: 0.35rem;
}

.timeline-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--clr-navy);
  margin-bottom: 0.5rem;
}

.timeline-desc {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  line-height: 1.7;
}

/* === CTA BAND ============================================= */
.cta-band {
  background: var(--clr-navy);
  padding-block: var(--space-xl);
  position: relative;
  overflow: hidden;
}

.cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 0% 50%, rgba(197, 160, 89, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 100% 50%, rgba(197, 160, 89, 0.06) 0%, transparent 60%);
}

.cta-band-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.cta-band-text h2 {
  font-size: var(--text-3xl);
  color: var(--clr-parchment);
  margin-bottom: 0.5rem;
}

.cta-band-text h2 em {
  font-style: italic;
  color: var(--clr-gold);
}

.cta-band-text p {
  color: rgba(244, 241, 234, 0.6);
  font-size: var(--text-md);
}

.cta-band .btn-primary {
  background: var(--clr-gold);
  border-color: var(--clr-gold);
  color: var(--clr-navy);
  flex-shrink: 0;
}

.cta-band .btn-primary:hover {
  background: var(--clr-parchment);
  border-color: var(--clr-parchment);
  color: var(--clr-navy);
}

/* === FOOTER =============================================== */
.site-footer {
  background: var(--clr-navy-dk);
  border-top: 1px solid rgba(197, 160, 89, 0.15);
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-logo { margin-bottom: 1rem; }

.footer-about {
  font-size: var(--text-sm);
  color: rgba(244, 241, 234, 0.55);
  line-height: 1.8;
  margin-bottom: 0.75rem;
}

.footer-about strong { color: var(--clr-gold-lt); }

.footer-hq {
  font-size: var(--text-xs);
  color: rgba(244, 241, 234, 0.3);
  letter-spacing: 0.06em;
  font-style: italic;
}

.footer-col-heading {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--clr-gold);
  margin-bottom: 1.25rem;
}

.footer-links { display: flex; flex-direction: column; gap: 0.65rem; }

.footer-links a {
  font-size: var(--text-sm);
  color: rgba(244, 241, 234, 0.5);
  transition: color var(--transition-base);
  display: inline-flex;
  align-items: center;
}

.footer-links a:hover { color: var(--clr-parchment); }

/* Social links */
.social-links { display: flex; flex-direction: column; gap: 0.85rem; }

.social-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: rgba(244, 241, 234, 0.5);
  font-size: var(--text-sm);
  transition: color var(--transition-base), transform var(--transition-fast);
}

.social-link:hover {
  color: var(--clr-gold);
  transform: translateX(4px);
}

.social-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* Footer bottom */
.footer-bottom {
  border-top: 1px solid rgba(197, 160, 89, 0.1);
  padding-top: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-copyright {
  font-size: var(--text-xs);
  color: rgba(244, 241, 234, 0.3);
}

.footer-legal {
  display: flex;
  gap: 1.5rem;
}

.footer-legal a {
  font-size: var(--text-xs);
  color: rgba(244, 241, 234, 0.3);
  transition: color var(--transition-base);
}

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

/* === MOBILE NAV =========================================== */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0; right: 0;
    width: min(320px, 100vw);
    height: 100vh;
    background: var(--clr-navy-dk);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 2rem;
    gap: 2rem;
    transform: translateX(100%);
    transition: transform var(--transition-base);
    z-index: 999;
    border-left: 1px solid rgba(197, 160, 89, 0.15);
  }

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

  .nav-links a { font-size: var(--text-xl); }
  .nav-cta { padding: 0.75rem 1.5rem !important; }
  .nav-toggle { display: flex; z-index: 1000; }

  .nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.active span:nth-child(2) { opacity: 0; }
  .nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .hero-stamp { display: none; }
}

/* === RESPONSIVE GRID ADJUSTMENTS ========================= */
@media (max-width: 1100px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-brand { grid-column: auto; }

  .form-group {
    flex-direction: column;
    border-radius: var(--radius-sm);
  }

  .form-group input[type="email"] { padding: 1rem; }

  .form-group .btn-primary {
    border-left: none;
    border-top: 1px solid rgba(197, 160, 89, 0.2);
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    width: 100%;
    justify-content: center;
  }

  .cta-band-inner { flex-direction: column; text-align: center; }
  .cta-band-inner .btn-primary { width: 100%; justify-content: center; }

  .countdown-sep { display: none; }
  .countdown-timer { gap: 0.75rem; }

  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-legal { justify-content: center; }
}

/* === PRINT ================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .fade-in-up { opacity: 1; transform: none; }
}