/* ==========================================================================
   KanaGate Minimal Showcase - Base & Typography
   ========================================================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-snap-type: y proximity;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: var(--bg-deep);
  color: var(--text-primary);
  color-scheme: dark light;
  transition: background-color 0.3s var(--ease-out), color 0.3s var(--ease-out);
}

/* Disabled scroll snap when at bottom Waitlist screen so user can freely see footer */
html.no-snap {
  scroll-snap-type: none !important;
}

body {
  font-family: var(--font-body);
  line-height: 1.6;
  background-color: var(--bg-deep);
  background-image: 
    radial-gradient(circle at 50% 10%, rgba(225, 29, 72, 0.08) 0%, transparent 60%),
    radial-gradient(circle at 80% 60%, rgba(251, 191, 36, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 20% 90%, rgba(225, 29, 72, 0.06) 0%, transparent 60%);
  background-attachment: fixed;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  transition: background-color 0.3s var(--ease-out), color 0.3s var(--ease-out);
}

[data-theme="light"] body {
  background-image: 
    radial-gradient(circle at 50% 10%, rgba(190, 17, 52, 0.06) 0%, transparent 60%),
    radial-gradient(circle at 85% 55%, rgba(217, 119, 6, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 15% 90%, rgba(190, 17, 52, 0.05) 0%, transparent 60%);
}

/* Subtle Grid Mesh */
.ambient-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image: 
    linear-gradient(to right, var(--ambient-grid-color) 1px, transparent 1px),
    linear-gradient(to bottom, var(--ambient-grid-color) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(circle at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(circle at center, black 30%, transparent 80%);
}

/* Typography Hierarchy */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--text-primary);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.025em;
  transition: color 0.3s var(--ease-out);
}

h1 {
  font-size: clamp(2.75rem, 6vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.035em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.03em;
}

h3 {
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}

p {
  color: var(--text-secondary);
  font-size: 1.125rem;
  line-height: 1.7;
  transition: color 0.3s var(--ease-out);
}

a {
  color: inherit;
  text-decoration: none;
}

/* Focus Visibility */
:focus-visible {
  outline: 2px solid var(--crimson-500);
  outline-offset: 4px;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.25);
  border-radius: 9999px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(148, 163, 184, 0.45);
}

/* Navigation Custom Elements */
kanagate-header,
kanjigate-header {
  display: contents;
}

kanagate-footer,
kanjigate-footer {
  display: block;
  position: relative;
  z-index: 10;
  width: 100%;
}

/* Utility Classes */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 32px;
  padding-right: 32px;
}

@media (max-width: 768px) {
  .container {
    padding-left: 20px;
    padding-right: 20px;
  }
}

.text-gradient-crimson {
  background: linear-gradient(135deg, #f43f5e 0%, #be123c 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="light"] .text-gradient-crimson {
  background: linear-gradient(135deg, #e11d48 0%, #9f0e2b 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ==========================================================================
   View Transitions API: Circular Theme Toggle Reveal
   ========================================================================== */
::view-transition-old(root),
::view-transition-new(root) {
  animation: none;
  mix-blend-mode: normal;
}

::view-transition-old(root) {
  z-index: 1;
}

::view-transition-new(root) {
  z-index: 9999;
}

/* Prevent conflicting CSS color transitions while view-transition snapshot is rendering */
html.theme-transitioning,
html.theme-transitioning *,
html.theme-transitioning body {
  transition: none !important;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}