/* ============================================================
   iHome Global — Marketing Website
   main.css — Single stylesheet for all pages
   ============================================================ */

/* ============================================================
   1. CSS Custom Properties
   ============================================================ */
:root {
  --color-bg:             #0a0a0a;
  --color-bg-elevated:    #111111;
  --color-surface:        rgba(255, 255, 255, 0.06);
  --color-surface-hover:  rgba(255, 255, 255, 0.10);
  --color-border:         rgba(255, 255, 255, 0.08);
  --color-border-hover:   rgba(255, 255, 255, 0.16);
  --color-text-primary:   #f5f5f7;
  --color-text-secondary: #86868b;
  --color-text-tertiary:  #515154;
  --color-accent:         #0a84ff;
  --color-accent-hover:   #409cff;
  --color-success:        #30d158;
  --color-danger:         #ff453a;

  --glass-bg:     rgba(255, 255, 255, 0.06);
  --glass-blur:   blur(16px);
  --glass-border: 1px solid rgba(255, 255, 255, 0.08);

  --header-height: 64px;
  --header-bg:     rgba(10, 10, 10, 0.85);
  --header-blur:   blur(24px);

  --font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', system-ui, sans-serif;

  --text-xs:   12px;
  --text-sm:   14px;
  --text-base: 16px;
  --text-lg:   18px;
  --text-xl:   22px;
  --text-2xl:  28px;
  --text-3xl:  40px;
  --text-4xl:  56px;

  --sp-1:  4px;  --sp-2:  8px;  --sp-3:  12px; --sp-4:  16px;
  --sp-5:  20px; --sp-6:  24px; --sp-8:  32px; --sp-10: 40px;
  --sp-12: 48px; --sp-16: 64px; --sp-20: 80px; --sp-24: 96px;

  --r-sm:   8px;
  --r-md:   12px;
  --r-lg:   20px;
  --r-xl:   28px;
  --r-pill: 999px;

  --t-fast:   150ms cubic-bezier(0.4, 0, 0.2, 1);
  --t-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --t-slow:   400ms cubic-bezier(0.4, 0, 0.2, 1);

  --max-w:      1200px;
  --content-px: 16px;
}
@media (min-width: 768px)  { :root { --content-px: 32px; } }
@media (min-width: 1024px) { :root { --content-px: 48px; } }

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

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

body {
  background: transparent;
  color: var(--color-text-primary);
  font-family: var(--font);
  font-size: var(--text-base);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding-top: var(--header-height);
}

img   { max-width: 100%; display: block; }
a     { color: inherit; text-decoration: none; }
button { font-family: var(--font); cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }
input, select, textarea { font-family: var(--font); font-size: var(--text-base); }

/* ============================================================
   3. Layout Utilities
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--content-px);
  padding-right: var(--content-px);
}

/* ============================================================
   4. Glass Card
   ============================================================ */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
}

/* ============================================================
   5. Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 12px 24px;
  border-radius: var(--r-md);
  font-size: var(--text-base);
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: background var(--t-fast), transform var(--t-fast), border-color var(--t-fast);
  white-space: nowrap;
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
}
.btn:active { transform: scale(0.97); }

.btn-primary { background: var(--color-accent); color: #fff; border-color: var(--color-accent); }
.btn-primary:hover { background: var(--color-accent-hover); border-color: var(--color-accent-hover); }

.btn-secondary {
  background: var(--glass-bg);
  color: var(--color-text-primary);
  border-color: var(--color-border);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}
.btn-secondary:hover { background: var(--color-surface-hover); border-color: var(--color-border-hover); }

/* ============================================================
   6. Forms & Inputs
   ============================================================ */
.form-group { display: flex; flex-direction: column; gap: var(--sp-2); }

.form-group label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.glass-input,
.glass-select,
.glass-textarea {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  border-radius: var(--r-sm);
  color: var(--color-text-primary);
  font-size: var(--text-base);
  transition: border-color var(--t-fast), background var(--t-fast);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}
.glass-input:focus,
.glass-select:focus,
.glass-textarea:focus {
  border-color: var(--color-accent);
  background: rgba(10, 132, 255, 0.05);
}
.glass-input::placeholder,
.glass-textarea::placeholder { color: var(--color-text-tertiary); }

.glass-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2386868b' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
  cursor: pointer;
}
.glass-select option { background: #1c1c1e; color: var(--color-text-primary); }

.glass-textarea { resize: vertical; min-height: 120px; }

.form-grid-2 { display: grid; gap: var(--sp-4); }
@media (min-width: 600px) { .form-grid-2 { grid-template-columns: 1fr 1fr; } }

/* ============================================================
   7. Pill Buttons
   ============================================================ */
.pill-buttons { display: flex; flex-wrap: wrap; gap: var(--sp-2); }

.pill-btn {
  padding: 8px 16px;
  border-radius: var(--r-pill);
  font-size: var(--text-sm);
  font-weight: 500;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--t-fast);
  white-space: nowrap;
}
.pill-btn:hover { background: rgba(255, 255, 255, 0.1); color: var(--color-text-primary); }
.pill-btn.active { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }

/* ============================================================
   8. Header
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-height);
  background: var(--header-bg);
  backdrop-filter: var(--header-blur);
  -webkit-backdrop-filter: var(--header-blur);
  border-bottom: 1px solid transparent;
  z-index: 100;
  transition: border-color var(--t-normal);
}
.site-header.scrolled { border-bottom-color: var(--color-border); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--content-px);
}

.site-logo {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: #ff3b30;
  flex-shrink: 0;
}
.site-logo span { color: var(--color-text-primary); }

.nav-desktop {
  display: none;
  align-items: center;
  gap: 2px;
}
.nav-desktop a {
  padding: 8px 14px;
  border-radius: var(--r-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--t-fast), background var(--t-fast);
}
.nav-desktop a:hover { color: var(--color-text-primary); background: rgba(255,255,255,0.06); }
.nav-desktop a[aria-current="page"] { color: var(--color-text-primary); font-weight: 600; }
.nav-desktop .nav-shop {
  color: var(--color-accent);
  border: 1px solid rgba(10,132,255,0.3);
  border-radius: var(--r-pill);
  padding: 7px 16px;
}
.nav-desktop .nav-shop:hover { background: rgba(10,132,255,0.1); }

.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px; height: 40px;
  border-radius: var(--r-sm);
  padding: 8px;
  transition: background var(--t-fast);
}
.hamburger:hover { background: rgba(255,255,255,0.06); }
.hamburger span {
  display: block;
  width: 20px; height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: transform var(--t-normal), opacity var(--t-normal);
}
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile {
  position: fixed;
  top: var(--header-height); left: 0; right: 0; bottom: 0;
  background: rgba(10,10,10,0.97);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 99;
  display: flex;
  flex-direction: column;
  padding: var(--sp-8) var(--content-px);
  gap: var(--sp-1);
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--t-normal), opacity var(--t-normal);
}
.nav-mobile.open { transform: translateY(0); opacity: 1; pointer-events: all; }
.nav-mobile a {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text-secondary);
  padding: var(--sp-4) 0;
  border-bottom: 1px solid var(--color-border);
  transition: color var(--t-fast);
  letter-spacing: -0.02em;
}
.nav-mobile a:hover, .nav-mobile a[aria-current="page"] { color: var(--color-text-primary); }
.nav-mobile .nav-shop { color: var(--color-accent); }

body.nav-open { overflow: hidden; }

@media (min-width: 768px) {
  .nav-desktop { display: flex; }
  .hamburger   { display: none; }
}

/* ============================================================
   9. Page Hero (shared inner-page header)
   ============================================================ */
.page-hero {
  padding: var(--sp-12) 0 var(--sp-8);
}
.page-title {
  font-size: var(--text-3xl);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
}
.page-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-top: var(--sp-2);
}
@media (min-width: 768px) {
  .page-title    { font-size: var(--text-4xl); }
  .page-subtitle { font-size: var(--text-xl); }
}

/* ============================================================
   10. Footer
   ============================================================ */
.site-footer {
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
  padding: var(--sp-12) 0 var(--sp-8);
  margin-top: var(--sp-20);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--content-px);
}
.footer-social {
  display: flex;
  gap: var(--sp-3);
  margin-bottom: var(--sp-8);
}
.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: var(--r-md);
  background: var(--glass-bg);
  border: var(--glass-border);
  color: var(--color-text-secondary);
  transition: color var(--t-fast), background var(--t-fast);
}
.footer-social a:hover { color: var(--color-text-primary); background: var(--color-surface-hover); }
.footer-social svg { width: 18px; height: 18px; fill: currentColor; }

.footer-contact {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3) var(--sp-8);
  margin-bottom: var(--sp-8);
}
.footer-contact a, .footer-contact span {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition: color var(--t-fast);
}
.footer-contact a:hover { color: var(--color-text-primary); }

.footer-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
  margin-bottom: var(--sp-8);
  padding: var(--sp-6);
  background: var(--glass-bg);
  border: var(--glass-border);
  border-radius: var(--r-lg);
}
@media (min-width: 768px) { .footer-stats { grid-template-columns: repeat(4, 1fr); } }

.footer-stat-item { text-align: center; }
.footer-stat-value {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.footer-stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 2px;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-2);
  padding-top: var(--sp-6);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}

/* ============================================================
   11. HOME PAGE
   ============================================================ */
.wave-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background: radial-gradient(circle at 50% 80%, #1a1f2a 0%, #0b0e13 40%, #05070a 70%);
  animation: waveMove 12s ease-in-out infinite alternate;
}

.wave-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(3px 3px at  8% 15%, rgba(255,255,255,0.8), transparent),
    radial-gradient(2px 2px at 20% 30%, rgba(255,255,255,0.7), transparent),
    radial-gradient(4px 4px at 15% 55%, rgba(255,255,255,0.6), transparent),
    radial-gradient(2px 2px at 30% 80%, rgba(255,255,255,0.7), transparent),
    radial-gradient(3px 3px at 40% 10%, rgba(255,255,255,0.6), transparent),
    radial-gradient(2px 2px at 40% 70%, rgba(255,255,255,0.7), transparent),
    radial-gradient(3px 3px at 50% 45%, rgba(255,255,255,0.5), transparent),
    radial-gradient(4px 4px at 60% 20%, rgba(255,255,255,0.8), transparent),
    radial-gradient(2px 2px at 60% 75%, rgba(255,255,255,0.6), transparent),
    radial-gradient(3px 3px at 70% 35%, rgba(255,255,255,0.7), transparent),
    radial-gradient(2px 2px at 75% 60%, rgba(255,255,255,0.6), transparent),
    radial-gradient(4px 4px at 80% 85%, rgba(255,255,255,0.7), transparent),
    radial-gradient(3px 3px at 85% 20%, rgba(255,255,255,0.8), transparent),
    radial-gradient(2px 2px at 90% 50%, rgba(255,255,255,0.6), transparent),
    radial-gradient(3px 3px at 92% 75%, rgba(255,255,255,0.7), transparent),
    radial-gradient(2px 2px at 25% 50%, rgba(255,255,255,0.5), transparent),
    radial-gradient(3px 3px at 55% 88%, rgba(255,255,255,0.6), transparent),
    radial-gradient(2px 2px at 48% 25%, rgba(255,255,255,0.7), transparent),
    radial-gradient(4px 4px at 12% 88%, rgba(255,255,255,0.5), transparent),
    radial-gradient(2px 2px at 68%  8%, rgba(255,255,255,0.7), transparent);
  animation: dotsGlow 6s ease-in-out infinite alternate;
}

@keyframes waveMove {
  0%   { filter: brightness(0.75); }
  50%  { filter: brightness(1.3); }
  100% { filter: brightness(0.8); }
}

@keyframes dotsGlow {
  0%   { opacity: 0.3; }
  100% { opacity: 0.85; }
}

.hero { padding: var(--sp-8) 0 var(--sp-4); }

.hero-frame {
  position: relative;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.1);
  background: #111;
  aspect-ratio: 2 / 3;
}
.hero-img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: opacity var(--t-normal);
}
.hero-img.fade-out { opacity: 0; }

.hero-overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: var(--sp-6);
  background: linear-gradient(to top, rgba(0,0,0,0.72) 0%, transparent 100%);
  pointer-events: none;
}
.hero-scene-label {
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-shadow: 0 1px 4px rgba(0,0,0,0.5);
}
.hero-scene-tagline {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.8);
  margin-top: 4px;
}

.hero-layout {
  max-width: 1100px;
  margin: 0 auto;
}

.scene-controls {
  display: flex;
  gap: var(--sp-3);
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  padding: var(--sp-5) var(--content-px);
  justify-content: center;
}
.scene-controls::-webkit-scrollbar { display: none; }

/* Desktop: hero image left, scene tiles stacked vertically on the right */
@media (min-width: 768px) {
  .hero-layout {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-6);
  }
  .hero-frame {
    flex-shrink: 0;
    margin: 0;
  }
  .scene-controls {
    flex-direction: column;
    overflow-x: visible;
    padding: 0;
    justify-content: center;
  }
  .scene-controls .glass-tile {
    min-width: 200px;
    width: 100%;
  }
}

/* Liquid Glass Tile — used for scene buttons */
.glass-tile {
  position: relative;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 2px;
  padding: 6px 1px;
  border-radius: 18px;
  background: rgba(255,255,255,0.18);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255,255,255,0.25);
  box-shadow: 0 8px 24px rgba(0,0,0,0.25), inset 0 1px 0 rgba(255,255,255,0.25);
  transition: background 0.25s ease, transform 0.15s ease, box-shadow 0.25s ease, border 0.25s ease;
  cursor: pointer;
  color: var(--color-text-primary);
  flex-shrink: 0;
  min-width: 170px;
}
.glass-tile:hover {
  background: rgba(255,255,255,0.28);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.35), inset 0 1px 0 rgba(255,255,255,0.3);
}
.glass-tile:active {
  transform: scale(0.97);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2), inset 0 2px 4px rgba(0,0,0,0.15);
}
.glass-tile.active {
  background: rgba(10,132,255,0.2);
  border: 1px solid rgba(10,132,255,0.4);
  box-shadow: 0 6px 20px rgba(0,0,0,0.15), 0 0 18px rgba(10,132,255,0.35);
}
.glass-tile .tile-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}
.glass-tile .tile-icon img { width: 40px; height: 40px; object-fit: contain; }
.glass-tile .tile-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-primary);
  transition: color 0.25s ease;
  text-align: left;
}
.glass-tile .tile-subtitle {
  font-size: 12px;
  color: var(--color-text-secondary);
  transition: color 0.25s ease;
  text-align: left;
  margin-top: 2px;
}

.value-props {
  padding: var(--sp-12) 0;
}
.value-props-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  max-width: 640px;
  margin: 0 auto;
}
.value-prop-item {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  padding: var(--sp-5) var(--sp-6);
  background: var(--glass-bg);
  border: var(--glass-border);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  gap: var(--sp-4);
}
.value-prop-check {
  color: var(--color-accent);
  font-size: 18px;
  flex-shrink: 0;
}

.home-cta {
  text-align: center;
  padding: var(--sp-4) 0 var(--sp-16);
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
  justify-content: center;
}

/* ============================================================
   12. INTEGRATIONS PAGE
   ============================================================ */
/* Grid: 1 col -> 2 cols -> 3 cols */
.integrations-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-6);
  padding-bottom: var(--sp-12);
}
@media (min-width: 600px)  { .integrations-grid { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 1024px) { .integrations-grid { grid-template-columns: repeat(3,1fr); } }

/* Card */
.integration-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--r-xl);
  overflow: hidden;
  transition: border-color var(--t-fast);
}
.integration-card:hover {
  border-color: var(--color-border-hover);
}

/* Image */
.integration-card-img {
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #111;
}
.integration-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}

/* Lights card — on/off image swap */
.integration-card--toggle .integration-card-img {
  position: relative;
}
.integration-card--toggle .integration-card-img img {
  position: absolute;
  top: 0;
  left: 0;
  transition: opacity 2s ease, transform var(--t-slow);
}
.integration-card--toggle .integration-card-img .img-off {
  opacity: 0;
}
.integration-card--toggle .integration-card-img .img-on {
  opacity: 1;
}
@media (hover: hover) {
  .integration-card--toggle:hover .integration-card-img .img-on {
    opacity: 0;
  }
  .integration-card--toggle:hover .integration-card-img .img-off {
    opacity: 1;
  }
}
.integration-card--toggle.is-toggled .integration-card-img .img-on {
  opacity: 0;
}
.integration-card--toggle.is-toggled .integration-card-img .img-off {
  opacity: 1;
}

/* Dark gradient backdrop — improves text readability */
.integration-card--toggle .integration-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0.25) 60%, transparent 100%);
  opacity: 0;
  transition: opacity 2s ease;
  z-index: 1;
  pointer-events: none;
}
@media (hover: hover) {
  .integration-card--toggle:hover .integration-card-img::after {
    opacity: 1;
  }
}
.integration-card--toggle.is-toggled .integration-card-img::after {
  opacity: 1;
}

/* Overlay call-to-action text — fades in on hover/toggle */
.integration-card--toggle .integration-card-cta {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: #fff;
  text-shadow: 0 2px 20px rgba(0,0,0,0.55);
  opacity: 0;
  transition: opacity 2s ease;
  z-index: 2;
  pointer-events: none;
}
@media (hover: hover) {
  .integration-card--toggle:hover .integration-card-cta {
    opacity: 1;
  }
}
.integration-card--toggle.is-toggled .integration-card-cta {
  opacity: 1;
}
/* CTA subtitle — narrow/light Apple style */
.integration-card-cta-sub {
  display: block;
  font-weight: 300;
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  letter-spacing: 0.01em;
  margin-top: 0.35em;
  opacity: 0.85;
}

/* Text body */
.integration-card-body {
  padding: var(--sp-5) var(--sp-6) var(--sp-6);
}
.integration-card-title {
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: var(--sp-2);
}
.integration-card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.works-with {
  padding: var(--sp-10) 0 var(--sp-12);
  border-top: 1px solid var(--color-border);
}
.works-with-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: var(--sp-5);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: var(--text-sm);
}
.protocol-strip { display: flex; flex-wrap: wrap; gap: var(--sp-3); }
.protocol-chip {
  padding: 8px 18px;
  border-radius: var(--r-pill);
  font-size: var(--text-sm);
  font-weight: 500;
  background: var(--glass-bg);
  border: var(--glass-border);
  color: var(--color-text-secondary);
}

/* ============================================================
   13. PORTFOLIO PAGE
   ============================================================ */
.portfolio-grid {
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
  max-width: 860px;
  margin: 0 auto;
  padding-bottom: var(--sp-16);
}

.project-card {
  background: var(--glass-bg);
  border: var(--glass-border);
  border-radius: var(--r-xl);
  overflow: hidden;
  transition: border-color var(--t-fast);
}
.project-card:hover { border-color: var(--color-border-hover); }

.project-cover {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #111;
}
.project-cover img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}
.project-card:hover .project-cover img { transform: scale(1.03); }

.project-meta { padding: var(--sp-6) var(--sp-6) 0; }

.project-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--sp-4);
  margin-bottom: var(--sp-3);
}
.project-name {
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
}
.project-badge {
  flex-shrink: 0;
  padding: 4px 12px;
  border-radius: var(--r-pill);
  font-size: var(--text-xs);
  font-weight: 600;
  background: rgba(10,132,255,0.15);
  color: var(--color-accent-hover);
  border: 1px solid rgba(10,132,255,0.25);
  white-space: nowrap;
}
.project-badge.ongoing {
  background: rgba(255,159,10,0.12);
  color: #ff9f0a;
  border-color: rgba(255,159,10,0.3);
}

.project-excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  padding: 0 var(--sp-6) var(--sp-4);
}

.project-expand-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  margin: 0 var(--sp-6) var(--sp-5);
  padding: 10px 20px;
  border-radius: var(--r-md);
  font-size: var(--text-sm);
  font-weight: 500;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--t-fast);
}
.project-expand-btn:hover { background: rgba(255,255,255,0.1); color: var(--color-text-primary); }
.project-expand-btn .chevron { transition: transform var(--t-fast); display: inline-block; }
.project-card.expanded .project-expand-btn .chevron { transform: rotate(180deg); }

.project-detail {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.55s cubic-bezier(0.4, 0, 0.2, 1);
}
.project-card.expanded .project-detail { max-height: 1400px; }

.project-detail-inner {
  padding: var(--sp-6);
  border-top: 1px solid var(--color-border);
}
.project-full-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.8;
  white-space: pre-line;
  margin-bottom: var(--sp-5);
}
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-bottom: var(--sp-6);
}
.project-tag {
  padding: 4px 12px;
  border-radius: var(--r-pill);
  font-size: var(--text-xs);
  font-weight: 500;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}
.project-cta { display: flex; gap: var(--sp-3); flex-wrap: wrap; }

/* ============================================================
   14. CALCULATOR PAGE
   ============================================================ */
.calc-section { padding-bottom: var(--sp-16); }

.calc-type-grid {
  display: flex;
  gap: var(--sp-5);
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  padding-bottom: var(--sp-2);
  margin-bottom: var(--sp-8);
}
.calc-type-grid::-webkit-scrollbar { display: none; }

@media (min-width: 768px)  {
  .calc-type-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    overflow: visible;
  }
}
@media (min-width: 1024px) {
  .calc-type-grid { grid-template-columns: repeat(4, 1fr); }
}

.calc-type-card {
  flex: 0 0 230px;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  padding: var(--sp-6);
  background: var(--glass-bg);
  border: var(--glass-border);
  border-radius: var(--r-lg);
  cursor: pointer;
  transition: all var(--t-fast);
  text-align: left;
}
.calc-type-card:hover {
  background: var(--color-surface-hover);
  border-color: rgba(10,132,255,0.3);
  transform: translateY(-3px);
}
.calc-icon { font-size: 32px; }
.calc-type-card h3 { font-size: var(--text-base); font-weight: 600; color: var(--color-text-primary); }
.calc-type-card p  { font-size: var(--text-sm); color: var(--color-text-secondary); line-height: 1.5; flex: 1; }
.select-btn        { font-size: var(--text-sm); font-weight: 500; color: var(--color-accent); margin-top: auto; }

#calc-form-container {
  display: none;
  max-width: 760px;
  margin: 0 auto;
  animation: fadeSlideDown var(--t-normal) ease;
}
@keyframes fadeSlideDown {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  margin-bottom: var(--sp-6);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: color var(--t-fast);
}
.back-btn:hover { color: var(--color-text-primary); }

.calc-form-content { display: none; }
.calc-form-content.active { display: block; }

.calc-form-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--sp-6);
}

.glass-fieldset {
  border: var(--glass-border);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  margin-bottom: var(--sp-5);
  background: var(--glass-bg);
}
.glass-legend {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
  padding: 0 var(--sp-2);
}
.calc-field { margin-bottom: var(--sp-4); }
.calc-field:last-child { margin-bottom: 0; }
.calc-field-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: var(--sp-2);
  display: block;
}

.conditional-field { display: none; }
.conditional-field.visible { display: block; }

.calc-submit-row {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  margin-top: var(--sp-6);
  flex-wrap: wrap;
}
.calc-status { font-size: var(--text-sm); color: var(--color-text-secondary); }
.calc-status.success { color: var(--color-success); }
.calc-status.error   { color: var(--color-danger); }

/* ============================================================
   15. CONTACT PAGE
   ============================================================ */
.contact-layout {
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
  max-width: 760px;
  margin: 0 auto;
  padding-bottom: var(--sp-16);
}
.contact-section-title {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--sp-5);
  letter-spacing: -0.01em;
}
.hours-list { display: grid; gap: var(--sp-3); }
.hours-row  { display: flex; justify-content: space-between; font-size: var(--text-base); }
.hours-day  { color: var(--color-text-secondary); }
.hours-time { font-weight: 500; }

.contact-items { display: flex; flex-direction: column; gap: var(--sp-3); }
.contact-item {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding: var(--sp-4);
  border-radius: var(--r-md);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: background var(--t-fast), border-color var(--t-fast);
}
.contact-item:hover { background: rgba(255,255,255,0.08); border-color: var(--color-border-hover); }
.contact-item-icon {
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--r-sm);
  background: rgba(10,132,255,0.1);
  color: var(--color-accent);
  flex-shrink: 0;
  font-size: 18px;
}
.contact-item-text { display: flex; flex-direction: column; gap: 2px; }
.contact-item-label { font-size: var(--text-xs); color: var(--color-text-secondary); text-transform: uppercase; letter-spacing: 0.05em; }
.contact-item-value { font-size: var(--text-base); font-weight: 500; }

.contact-map iframe {
  width: 100%; height: 280px;
  border: 0;
  border-radius: var(--r-lg);
  display: block;
}

.contact-form .calc-field { margin-bottom: var(--sp-4); }

.form-submit-row {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  margin-top: var(--sp-6);
  flex-wrap: wrap;
}
.form-status { font-size: var(--text-sm); color: var(--color-text-secondary); }
.form-status.success { color: var(--color-success); }
.form-status.error   { color: var(--color-danger); }