/* ============================================================
   KYNVORA — Kynvora Minimal Design System
   Specification: design.md
   Clean, high-clarity retail system with restrained color,
   generous whitespace, and premium product focus.
   ============================================================ */

:root {
  /* Colors */
  --color-primary: #0071E3;
  --color-secondary: #2997FF;
  --color-tertiary: #0066CC;
  --color-neutral: #1D1D1F;
  --color-surface: #FFFFFF;
  --color-background: #FFFFFF;
  --color-on-surface: #1D1D1F;
  --color-muted: #6E6E73;
  --color-border: #E5E7EB;
  --color-accent-quiet: #F5F5F7;
  --color-error: #D92D20;

  /* Typography */
  --font-display: BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-text: BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Helvetica Neue", Helvetica, Arial, sans-serif;

  /* Spacing */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 54px;
  --space-xl: 70px;

  /* Radii */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html {
  font-family: var(--font-text);
  background-color: var(--color-background);
  color: var(--color-on-surface);
  scroll-behavior: smooth;
  font-size: 17px;
  line-height: 1.47059;
  overflow-x: hidden;
}

body {
  background-color: var(--color-background);
  color: var(--color-on-surface);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.15s ease;
}
a:hover {
  color: var(--color-secondary);
}

.container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ============================================================
   NAVBAR (Kynvora Frosted Glass)
   ============================================================ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 9999;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  height: 48px;
  display: flex;
  align-items: center;
}
.navbar-container {
  max-width: 1024px;
  margin: 0 auto;
  width: 100%;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.navbar .logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-neutral);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.02em;
}
.navbar .logo-img {
  width: 20px;
  height: 20px;
  object-fit: contain;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  color: var(--color-neutral);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: -0.01em;
  opacity: 0.8;
  padding: 4px 0;
  transition: opacity 0.15s, color 0.15s;
}
.nav-links a:hover {
  opacity: 1;
  color: var(--color-primary);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  width: 36px;
  height: 36px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  border-radius: var(--rounded-md);
  transition: background-color 0.15s ease;
}
.menu-toggle:hover {
  background-color: var(--color-accent-quiet);
}
.menu-toggle span {
  display: block;
  width: 20px;
  height: 1.5px;
  background-color: var(--color-neutral);
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ============================================================
   BUTTONS (Kynvora Minimal Pills)
   ============================================================ */
.btn-primary, .button-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  color: #ffffff !important;
  font-family: var(--font-text);
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
  padding: 11px 22px;
  min-height: 42px;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all 0.18s ease;
  white-space: nowrap;
}
.btn-primary:hover, .button-primary:hover {
  background-color: var(--color-secondary);
  color: #ffffff !important;
  transform: translateY(-1px);
}

.btn-secondary, .button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: transparent;
  color: var(--color-primary) !important;
  font-family: var(--font-text);
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
  padding: 11px 22px;
  min-height: 42px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-primary);
  cursor: pointer;
  transition: all 0.18s ease;
  white-space: nowrap;
}
.btn-secondary:hover, .button-secondary:hover {
  border-color: var(--color-secondary);
  color: var(--color-secondary) !important;
  background-color: rgba(0, 113, 227, 0.04);
}

.btn-link {
  color: var(--color-primary);
  font-size: 15px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.btn-link:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

/* ============================================================
   HERO SECTION (Kynvora Minimal Expansive Showcase)
   ============================================================ */
.hero-kynvora {
  padding: var(--space-xl) 0 var(--space-lg);
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
}
.hero-eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(38px, 6vw, 56px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--color-neutral);
  margin-bottom: 18px;
}
.hero-lead {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.5vw, 22px);
  font-weight: 400;
  line-height: 1.45;
  color: var(--color-muted);
  max-width: 680px;
  margin: 0 auto 28px;
  letter-spacing: 0.005em;
}
.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

/* Runtime Specs Ribbon (Accent-Quiet #F5F5F7) */
.hero-specs-card {
  background-color: var(--color-accent-quiet);
  border-radius: var(--radius-xl);
  padding: 22px 32px;
  border: 1px solid var(--color-border);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: left;
  max-width: 860px;
  margin: 0 auto;
}
.spec-item {
  display: flex;
  flex-direction: column;
}
.spec-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-muted);
  margin-bottom: 4px;
}
.spec-value {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-neutral);
  display: flex;
  align-items: center;
  gap: 6px;
}
.spec-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #34C759;
  display: inline-block;
}

/* ============================================================
   SECTION HEADERS
   ============================================================ */
.section-block {
  padding: var(--space-xl) 0 var(--space-md);
  border-top: 1px solid var(--color-border);
}
.section-header-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: var(--space-md);
  gap: 20px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-neutral);
  margin-bottom: 8px;
}
.section-subtitle {
  font-size: 16px;
  color: var(--color-muted);
  line-height: 1.45;
  max-width: 600px;
}

/* ============================================================
   GAMES SHOWCASE GRID (Kynvora Product Showcase)
   ============================================================ */
.games-showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 24px;
}
.kynvora-product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
  color: inherit;
  text-decoration: none;
}
.kynvora-product-card:hover {
  transform: translateY(-3px);
  border-color: #cbd5e1;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.06);
}
.product-media {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--color-accent-quiet);
  overflow: hidden;
  position: relative;
  border-bottom: 1px solid var(--color-border);
}
.product-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.kynvora-product-card:hover .product-media img {
  transform: scale(1.02);
}
.product-details {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.product-eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 6px;
}
.product-title {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
  color: var(--color-neutral);
  letter-spacing: -0.015em;
  margin-bottom: 8px;
}
.product-desc {
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-muted);
  margin-bottom: 16px;
  flex: 1;
}
.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-muted);
}
.product-play-link {
  color: var(--color-primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.kynvora-product-card:hover .product-play-link {
  color: var(--color-secondary);
}

/* ============================================================
   CLIENT-SIDE TOOLS GRID (Clean, Restrained Retail Cards)
   ============================================================ */
.tools-showcase-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 24px;
}
.kynvora-tool-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
  color: inherit;
  text-decoration: none;
}
.kynvora-tool-card:hover {
  transform: translateY(-2px);
  border-color: #cbd5e1;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
}
.tool-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.tool-title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-neutral);
}
.tool-tag {
  font-size: 11px;
  font-weight: 500;
  color: var(--color-muted);
  background: var(--color-accent-quiet);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 2px 7px;
}
.tool-desc {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--color-muted);
  margin-bottom: 16px;
  flex: 1;
}
.tool-action-row {
  display: flex;
  align-items: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  gap: 4px;
}
.kynvora-tool-card:hover .tool-action-row {
  color: var(--color-secondary);
}

/* ============================================================
   ARCHITECTURE & TRUST (Kynvora 3-Column Minimalist Band)
   ============================================================ */
.architecture-kynvora {
  background: var(--color-accent-quiet);
  border-radius: var(--radius-xl);
  padding: 44px 36px;
  margin: var(--space-lg) 0;
  border: 1px solid var(--color-border);
}
.arch-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
}
.arch-item h4 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  color: var(--color-neutral);
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}
.arch-item p {
  font-size: 14px;
  line-height: 1.55;
  color: var(--color-muted);
}

/* ============================================================
   FAQ (Spacious Minimal Rows)
   ============================================================ */
.faq-kynvora-list {
  display: flex;
  flex-direction: column;
  margin-top: 24px;
  border-top: 1px solid var(--color-border);
}
.faq-kynvora-item {
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border);
}
.faq-kynvora-item h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-neutral);
  margin-bottom: 8px;
}
.faq-kynvora-item p {
  font-size: 15px;
  line-height: 1.55;
  color: var(--color-muted);
}

/* ============================================================
   CONTACT FORM (Kynvora Minimal)
   ============================================================ */
.contact-kynvora-wrap {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 48px;
  align-items: start;
  margin-top: 24px;
}
.contact-intro h3 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  color: var(--color-neutral);
  margin-bottom: 10px;
}
.contact-intro p {
  font-size: 15px;
  line-height: 1.55;
  color: var(--color-muted);
}
.contact-form-kynvora {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 28px;
}
.form-field-unit {
  display: flex;
  flex-direction: column;
  margin-bottom: 18px;
}
.form-field-unit label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-neutral);
  margin-bottom: 6px;
}
.form-field-unit input,
.form-field-unit textarea {
  width: 100%;
  padding: 12px 16px;
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-text);
  font-size: 15px;
  color: var(--color-neutral);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.form-field-unit input:focus,
.form-field-unit textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.12);
}
.form-field-unit textarea {
  resize: vertical;
  min-height: 100px;
}
.field-error-msg {
  font-size: 11px;
  color: var(--color-error);
  margin-top: 4px;
  display: none;
}
.field-error-msg.show {
  display: block;
}
.form-submit-kynvora {
  width: 100%;
  padding: 12px 24px;
  background-color: var(--color-primary);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-full);
  font-family: var(--font-text);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s ease;
}
.form-submit-kynvora:hover {
  background-color: var(--color-secondary);
}
.form-status-banner {
  margin-top: 16px;
  padding: 12px 18px;
  border-radius: var(--rounded-md);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.45;
  display: none;
  text-align: center;
  transition: all 0.2s ease;
}
.form-status-banner.show,
.form-status-banner.success {
  display: block;
  background-color: #E8F5E9;
  color: #1B5E20;
  border: 1px solid #A5D6A7;
}
.form-status-banner.error {
  display: block;
  background-color: #FFEBEE;
  color: #B71C1C;
  border: 1px solid #FFCDD2;
}

/* ============================================================
   FOOTER (Kynvora Minimal Colophon)
   ============================================================ */
.footer-kynvora {
  margin-top: auto;
  background-color: var(--color-accent-quiet);
  border-top: 1px solid var(--color-border);
  padding: var(--space-lg) 0 32px;
  font-size: 12px;
  color: var(--color-muted);
}
.footer-kynvora-columns {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 36px;
}
.footer-kynvora-col h5 {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-neutral);
  margin-bottom: 12px;
}
.footer-kynvora-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-kynvora-links a {
  color: var(--color-muted);
  font-size: 12px;
  transition: color 0.15s;
}
.footer-kynvora-links a:hover {
  color: var(--color-neutral);
}
.footer-kynvora-legal {
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* ============================================================
   RESPONSIVE (Mobile Breakpoints)
   ============================================================ */
@media (max-width: 960px) {
  .menu-toggle {
    display: flex;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 48px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 16px var(--space-md);
    gap: 16px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
    align-items: flex-start;
  }
  .nav-links a {
    font-size: 15px;
    width: 100%;
    padding: 6px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  }
  .navbar.nav-open .nav-links {
    display: flex;
  }
  .navbar.nav-open .menu-toggle span:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
  }
  .navbar.nav-open .menu-toggle span:nth-child(2) {
    opacity: 0;
  }
  .navbar.nav-open .menu-toggle span:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg);
  }

  .games-showcase-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .tools-showcase-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-specs-card {
    grid-template-columns: repeat(2, 1fr);
  }
  .arch-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .contact-kynvora-wrap {
    grid-template-columns: 1fr;
  }
  .footer-kynvora-columns {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .hero-kynvora {
    padding: 44px 0 32px;
  }
  .hero-headline {
    font-size: 34px;
  }
  .hero-lead {
    font-size: 17px;
  }
  .games-showcase-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .tools-showcase-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .hero-specs-card {
    grid-template-columns: 1fr;
    padding: 16px 20px;
    gap: 14px;
  }
  .section-header-row {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-kynvora-columns {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-kynvora-legal {
    flex-direction: column;
    align-items: flex-start;
  }
}