/* ==========================================================================
   EMCHIVE.COM — BRAND DESIGN SYSTEM & COMING SOON LANDING STYLES
   Aesthetic: Soft Modernist + Mid-Century Modern + Editorial SaaS + Contemporary Digital Archive
   ========================================================================== */

:root {
  /* Design System Color Tokens */
  --bg-main: #F4EDDF;
  --surface: #EEE7D9;
  --surface-card: #FAF6EE;
  --surface-white: #FCF9F2;
  
  --ink: #121211;
  --text-main: #191815;
  --text-muted: #777166;
  --text-muted-light: #9B9487;

  --pink: #E9A5CB;
  --pink-deep: #D27CAD;

  --mustard: #E8CB58;

  --olive: #A7B267;
  --olive-deep: #87944F;

  --blue: #A9BEDC;
  --blue-deep: #7D98BF;

  --border: #5A574F;
  --border-subtle: rgba(90, 87, 79, 0.22);
  --border-dark: #191815;

  /* Typography Tokens */
  --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Geometry & Radii */
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --radius-pill: 999px;

  /* Transitions */
  --ease-out-smooth: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 180ms var(--ease-out-smooth);
  --transition-medium: 250ms var(--ease-out-smooth);
}

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

html {
  font-family: var(--font-body);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-main);
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(232, 203, 88, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 75%, rgba(233, 165, 203, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(167, 178, 103, 0.08) 0%, transparent 60%);
  background-attachment: fixed;
  color: var(--text-main);
  position: relative;
  overflow-x: hidden;
}

/* Background Texture Noise Overlay */
.grain-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 999;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Layout Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.75rem;
}

/* ==========================================================================
   HEADER SECTION
   ========================================================================== */
.site-header {
  padding: 2.25rem 0 1.5rem 0;
  width: 100%;
}

.header-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.5rem;
  border-bottom: 1.5px solid var(--border-subtle);
}

.brand-wordmark {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  color: var(--ink);
}

.brand-logo-img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  transition: transform var(--transition-fast);
}

.brand-wordmark:hover .brand-logo-img {
  transform: scale(1.06);
}

.brand-symbol {
  width: 32px;
  height: 32px;
  background: var(--mustard);
  border: 1.5px solid var(--border-dark);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--ink);
  box-shadow: 2px 2px 0px var(--border-dark);
  transition: transform var(--transition-fast);
}

.brand-wordmark:hover .brand-symbol {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0px var(--border-dark);
}

.brand-text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.5rem;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.header-status {
  display: flex;
  align-items: center;
}

/* Status Indicator Pill */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--surface);
  border: 1.5px solid var(--border);
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-main);
  box-shadow: 1.5px 1.5px 0px var(--border);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--mustard);
  border: 1px solid var(--border-dark);
  display: inline-block;
  animation: subtlePulse 3s infinite ease-in-out;
}

@keyframes subtlePulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  padding: 4rem 0 3rem 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero-content {
  max-width: 900px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.75rem;
}

.hero-pill-badge {
  margin-bottom: 0.25rem;
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.75rem, 6.8vw, 5.75rem);
  line-height: 1.02;
  letter-spacing: -0.045em;
  color: var(--ink);
  max-width: 840px;
  margin: 0 auto;
}

.hero-subtitle {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: clamp(1.1rem, 2.2vw, 1.4rem);
  line-height: 1.45;
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto;
}

/* ==========================================================================
   ABSTRACT MEMORY VISUAL COMPOSITION (MID-CENTURY ARCHIVE COLLAGE)
   ========================================================================== */
.archive-visual-container {
  width: 100%;
  padding: 2.5rem 0 4.5rem 0;
  position: relative;
}

.collage-wrapper {
  position: relative;
  width: 100%;
  max-width: 1060px;
  margin: 0 auto;
  min-height: 520px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2.5rem;
  box-shadow: 4px 4px 0px var(--border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

/* Decorative Mid-Century Background Elements inside collage */
.mid-century-backdrop {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}

.bg-arch-shape {
  position: absolute;
  top: -40px;
  right: 12%;
  width: 180px;
  height: 260px;
  background: rgba(167, 178, 103, 0.25);
  border: 1.5px stroke var(--border-subtle);
  border-radius: 90px 90px 0 0;
}

.bg-circle-shape {
  position: absolute;
  bottom: -30px;
  left: 6%;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(233, 165, 203, 0.2);
  border: 1.5px dashed var(--border-subtle);
}

.bg-grid-lines {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(90, 87, 79, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(90, 87, 79, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
}

/* Collage Header & Index Tag */
.collage-meta-bar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.5rem;
  border-bottom: 1.5px stroke var(--border-subtle);
}

.archive-label-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.825rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-main);
  background: var(--bg-main);
  border: 1.5px solid var(--border);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-sm);
}

.archive-stamp {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* Memory Cards Collage Layout */
.memory-cards-grid {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.5rem;
  margin-top: 1.5rem;
  align-items: center;
}

/* Individual Card Styling */
.memory-card {
  border: 1.5px solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  position: relative;
  background: var(--surface-card);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  cursor: default;
  box-shadow: 3px 3px 0px var(--border-dark);
}

.memory-card:hover {
  transform: translateY(-5px) rotate(0deg) !important;
  box-shadow: 6px 6px 0px var(--border-dark);
  z-index: 10 !important;
}

/* Card 1: Mustard Accent - System Architecture */
.card-mustard {
  grid-column: span 5;
  background: var(--surface-white);
  border-top: 5px solid var(--mustard);
  transform: rotate(-1.5deg);
}

/* Card 2: Pink Accent - Design Archive */
.card-pink {
  grid-column: span 4;
  background: var(--pink);
  transform: rotate(1.2deg);
}

/* Card 3: Blue Accent - Notes on AI */
.card-blue {
  grid-column: span 3;
  background: var(--blue);
  transform: rotate(-1deg);
}

/* Card 4: Olive Accent - Things worth remembering */
.card-olive {
  grid-column: span 6;
  background: var(--surface-white);
  border-left: 5px solid var(--olive);
  transform: rotate(0.8deg);
}

/* Card 5: Ivory Surface - Curation */
.card-ivory {
  grid-column: span 6;
  background: var(--surface-card);
  border: 1.5px solid var(--border-dark);
  transform: rotate(-0.5deg);
}

/* Card Interior Typography & Elements */
.card-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.85rem;
}

.card-category-tag {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.675rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-dark);
  background: var(--surface-white);
  color: var(--text-main);
}

.card-pink .card-category-tag,
.card-blue .card-category-tag {
  background: rgba(255, 255, 255, 0.7);
}

.card-timestamp {
  font-size: 0.725rem;
  color: var(--text-muted);
  font-weight: 500;
}

.card-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 0.5rem;
}

.card-snippet {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.card-footer-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--border-subtle);
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

.card-bookmark-icon {
  width: 14px;
  height: 14px;
  stroke: var(--ink);
  fill: none;
  stroke-width: 2;
}

/* Decorative Starburst SVG Overlay */
.starburst-deco {
  position: absolute;
  bottom: 2rem;
  right: 3rem;
  width: 48px;
  height: 48px;
  fill: var(--mustard);
  stroke: var(--border-dark);
  stroke-width: 1.5;
  z-index: 4;
  animation: spinSlow 40s linear infinite;
}

@keyframes spinSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ==========================================================================
   PRODUCT DESCRIPTION & EDITORIAL ESSENCE
   ========================================================================== */
.product-essence-section {
  padding: 3rem 0;
  text-align: center;
}

.essence-box {
  max-width: 760px;
  margin: 0 auto;
  background: var(--surface-card);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.75rem 2.25rem;
  box-shadow: 3px 3px 0px var(--border);
  position: relative;
}

.essence-quote-mark {
  font-family: var(--font-display);
  font-size: 3rem;
  line-height: 1;
  color: var(--mustard);
  position: absolute;
  top: 1rem;
  left: 1.5rem;
}

.essence-text {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.25rem, 2.8vw, 1.65rem);
  line-height: 1.4;
  color: var(--ink);
  letter-spacing: -0.02em;
}

/* ==========================================================================
   LAUNCH STATUS & NOTIFY SECTION
   ========================================================================== */
.launch-status-section {
  padding: 4rem 0 5rem 0;
}

.launch-card {
  max-width: 840px;
  margin: 0 auto;
  background: var(--ink);
  color: var(--bg-main);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2.5rem;
  border: 2px solid var(--border-dark);
  box-shadow: 5px 5px 0px var(--mustard);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.75rem;
  position: relative;
  overflow: hidden;
}

.launch-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--bg-main);
}

.launch-subtitle {
  font-family: var(--font-body);
  font-size: 1.1rem;
  color: rgba(244, 237, 223, 0.8);
  max-width: 520px;
}

/* Notify / Action Interactive Form */
.action-form-wrapper {
  width: 100%;
  max-width: 480px;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.notify-input-group {
  display: flex;
  gap: 0.5rem;
  width: 100%;
}

.notify-input {
  flex: 1;
  background: var(--bg-main);
  border: 1.5px solid var(--bg-main);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.15rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--ink);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.notify-input::placeholder {
  color: var(--text-muted);
}

.notify-input:focus {
  border-color: var(--mustard);
  box-shadow: 0 0 0 3px rgba(232, 203, 88, 0.3);
}

.btn-primary {
  background: var(--mustard);
  color: var(--ink);
  border: 1.5px solid var(--mustard);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.4rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  white-space: nowrap;
  transition: transform var(--transition-fast), background-color var(--transition-fast);
  box-shadow: 2px 2px 0px var(--bg-main);
}

.btn-primary:hover {
  background: #f0d568;
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0px var(--bg-main);
}

.btn-primary:active {
  transform: translate(0px, 0px);
  box-shadow: 1px 1px 0px var(--bg-main);
}

/* Copy Link Secondary Action */
.secondary-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 0.5rem;
}

.btn-secondary {
  background: transparent;
  color: rgba(244, 237, 223, 0.85);
  border: 1px solid rgba(244, 237, 223, 0.3);
  border-radius: var(--radius-pill);
  padding: 0.5rem 1rem;
  font-family: var(--font-body);
  font-size: 0.825rem;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background: rgba(244, 237, 223, 0.12);
  color: var(--bg-main);
  border-color: var(--bg-main);
}

/* Feedback Toast Notification */
.feedback-toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--ink);
  color: var(--bg-main);
  border: 1.5px solid var(--mustard);
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: 4px 4px 0px var(--border-dark);
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  transform: translateY(120%);
  opacity: 0;
  transition: transform 300ms var(--ease-out-smooth), opacity 300ms var(--ease-out-smooth);
}

.feedback-toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* ==========================================================================
   FOOTER SECTION
   ========================================================================== */
.site-footer {
  margin-top: auto;
  padding: 2.5rem 0 3rem 0;
  border-top: 1.5px solid var(--border-subtle);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink);
}

.footer-motto {
  font-family: var(--font-body);
  font-style: italic;
  color: var(--text-muted);
}

.footer-domain {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
}

.footer-domain:hover {
  text-decoration: underline;
}

/* ==========================================================================
   RESPONSIVE & SMARTPHONE OPTIMIZATIONS
   ========================================================================== */

/* Tablet & Smaller Screens */
@media (max-width: 992px) {
  .memory-cards-grid {
    grid-template-columns: repeat(1, 1fr);
    gap: 1.25rem;
  }

  .memory-card {
    grid-column: span 1 !important;
    transform: none !important;
  }

  .collage-wrapper {
    min-height: auto;
    padding: 2.25rem 1.5rem;
  }

  .bg-arch-shape, .bg-circle-shape {
    display: none;
  }
}

/* Smartphone Screens (< 640px) */
@media (max-width: 640px) {
  .container {
    padding: 0 1.25rem;
  }

  .site-header {
    padding: 1.25rem 0 1rem 0;
  }

  .header-nav {
    padding-bottom: 0.85rem;
  }

  .brand-text {
    font-size: 1.25rem;
  }

  .brand-logo-img {
    width: 30px;
    height: 30px;
  }

  .status-pill {
    padding: 0.25rem 0.65rem;
    font-size: 0.675rem;
  }

  .hero-section {
    padding: 2rem 0 1.75rem 0;
  }

  .hero-content {
    gap: 1.25rem;
  }

  .hero-title {
    font-size: clamp(2.15rem, 9.5vw, 3.25rem);
    line-height: 1.05;
    letter-spacing: -0.035em;
  }

  .hero-subtitle {
    font-size: 1.05rem;
    line-height: 1.45;
  }

  .archive-visual-container {
    padding: 1.5rem 0 3rem 0;
  }

  .collage-wrapper {
    padding: 1.5rem 1rem;
    border-radius: var(--radius-md);
  }

  .collage-meta-bar {
    padding-bottom: 1rem;
    gap: 0.5rem;
  }

  .archive-label-tag {
    font-size: 0.725rem;
    padding: 0.25rem 0.55rem;
  }

  .archive-stamp {
    font-size: 0.675rem;
  }

  .memory-card {
    padding: 1.15rem 1rem;
    border-radius: var(--radius-sm);
    box-shadow: 2px 2px 0px var(--border-dark);
  }

  .memory-card:active {
    transform: scale(0.98) !important;
  }

  .card-title {
    font-size: 1.05rem;
  }

  .card-snippet {
    font-size: 0.825rem;
  }

  .starburst-deco {
    width: 36px;
    height: 36px;
    bottom: 1rem;
    right: 1rem;
  }

  .essence-box {
    padding: 2rem 1.25rem;
    border-radius: var(--radius-md);
  }

  .essence-text {
    font-size: 1.15rem;
  }

  .essence-quote-mark {
    font-size: 2.25rem;
    top: 0.5rem;
    left: 0.85rem;
  }

  .launch-status-section {
    padding: 3rem 0 4rem 0;
  }

  .launch-card {
    padding: 2.25rem 1.25rem;
    border-radius: var(--radius-md);
    gap: 1.35rem;
    box-shadow: 3.5px 3.5px 0px var(--mustard);
  }

  .launch-title {
    font-size: clamp(1.75rem, 7vw, 2.35rem);
  }

  .launch-subtitle {
    font-size: 0.95rem;
  }

  .notify-input-group {
    flex-direction: column;
    gap: 0.65rem;
  }

  .notify-input {
    font-size: 16px; /* Prevents automatic iOS zoom on focus */
    min-height: 48px;
    padding: 0.75rem 1rem;
    text-align: center;
  }

  .btn-primary {
    width: 100%;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .btn-secondary {
    min-height: 44px;
    padding: 0.6rem 1.1rem;
    font-size: 0.8rem;
  }

  .feedback-toast {
    left: 1rem;
    right: 1rem;
    bottom: 1.25rem;
    text-align: center;
    justify-content: center;
    padding: 0.75rem 1rem;
    font-size: 0.85rem;
  }

  .site-footer {
    padding: 2rem 0 2.5rem 0;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
    gap: 0.65rem;
    font-size: 0.825rem;
  }
}

/* Extra Small Smartphones (< 380px e.g. iPhone SE) */
@media (max-width: 380px) {
  .container {
    padding: 0 0.85rem;
  }

  .brand-text {
    font-size: 1.1rem;
  }

  .status-pill {
    font-size: 0.625rem;
    padding: 0.2rem 0.5rem;
  }

  .hero-title {
    font-size: 1.95rem;
  }

  .memory-card {
    padding: 1rem 0.85rem;
  }
}