@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

/* ==========================================================================
   Design Tokens
   ========================================================================== */

:root {
  /* --- Color tokens --- */
  --pxme-color-primary: hsl(215, 100%, 56%);
  --pxme-color-primary-dark: hsl(215, 100%, 40%);
  --pxme-color-secondary: hsl(210, 13%, 45%);
  --pxme-color-success: hsl(134, 61%, 41%);
  --pxme-color-danger: hsl(354, 70%, 54%);
  --pxme-color-warning: hsl(45, 100%, 51%);
  --pxme-color-info: hsl(191, 64%, 42%);
  --pxme-color-light: hsl(42, 39%, 94%);
  --pxme-color-light-alt: hsl(42, 39%, 85%);
  --pxme-color-dark: hsl(210, 29%, 24%);
  --pxme-color-border: hsl(210, 13%, 45%);
  --pxme-color-surface: hsl(0, 0%, 100%);

  /* --- Spacing tokens --- */
  --pxme-space-2xs: 4px;
  --pxme-space-xs: 8px;
  --pxme-space-sm: 12px;
  --pxme-space-md: 16px;
  --pxme-space-lg: 24px;
  --pxme-space-xl: 32px;
  --pxme-space-2xl: 48px;
  --pxme-space-3xl: 60px;

  /* --- Border radius tokens --- */
  --pxme-radius-sm: 4px;
  --pxme-radius-md: 8px;
  --pxme-radius-lg: 16px;
  --pxme-radius-full: 50%;

  /* --- Font size tokens --- */
  --pxme-font-2xs: 0.65rem;
  --pxme-font-xs: 0.75rem;
  --pxme-font-sm: 0.875rem;
  --pxme-font-md: 1rem;
  --pxme-font-lg: 1.125rem;
  --pxme-font-xl: 1.25rem;
  --pxme-font-2xl: 1.5rem;

  /* --- Font weight tokens --- */
  --pxme-weight-light: 300;
  --pxme-weight-normal: 400;
  --pxme-weight-medium: 500;
  --pxme-weight-semibold: 600;
  --pxme-weight-bold: 700;
  --pxme-weight-heavy: 800;

  /* --- Shadow tokens --- */
  --pxme-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --pxme-shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
  --pxme-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

  /* --- Transition tokens --- */
  --pxme-transition-fast: 0.15s ease;
  --pxme-transition-normal: 0.3s ease;

  /* --- Layout tokens --- */
  --pxme-gallery-min-col: 400px;
  --pxme-card-min-height: 300px;
  --pxme-icon-size: 24px;

  /* --- Footer tokens --- */
  --pxme-color-footer-bg: hsl(210, 29%, 18%);
  --pxme-color-footer-text: hsl(42, 39%, 94%);

  /* --- Header tokens --- */
  --pxme-color-header-bg: transparent;
  --pxme-color-header-text: var(--pxme-color-dark);

  /* --- Focus ring --- */
  --pxme-focus-ring: 0 0 0 2px var(--pxme-color-primary), 0 0 0 4px color-mix(in srgb, var(--pxme-color-primary) 30%, transparent);
}

/* ==========================================================================
   Dark Mode
   --------------------------------------------------------------------------
   Two selectors ensure dark tokens apply in all scenarios:
   1. @media – OS preference fallback (before JS sets data-theme, or if JS
      is disabled). Excluded when the user explicitly chose light.
   2. [data-theme="dark"] – explicit override set by the theme toggle.
   ========================================================================== */

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --pxme-color-primary: hsl(215, 100%, 67%);
    --pxme-color-primary-dark: hsl(215, 100%, 52%);
    --pxme-color-secondary: hsl(210, 15%, 60%);
    --pxme-color-light: hsl(220, 15%, 13%);
    --pxme-color-light-alt: hsl(220, 13%, 20%);
    --pxme-color-dark: hsl(210, 20%, 90%);
    --pxme-color-border: hsl(220, 10%, 28%);
    --pxme-color-surface: hsl(220, 15%, 17%);
    --pxme-color-footer-bg: hsl(220, 15%, 8%);
    --pxme-color-footer-text: hsl(210, 15%, 65%);
    --pxme-color-header-bg: transparent;
    --pxme-color-header-text: var(--pxme-color-dark);

    --pxme-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --pxme-shadow-md: 0 4px 8px rgba(0, 0, 0, 0.35);
    --pxme-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.45);

    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --pxme-color-primary: hsl(215, 100%, 67%);
  --pxme-color-primary-dark: hsl(215, 100%, 52%);
  --pxme-color-secondary: hsl(210, 15%, 60%);
  --pxme-color-light: hsl(220, 15%, 13%);
  --pxme-color-light-alt: hsl(220, 13%, 20%);
  --pxme-color-dark: hsl(210, 20%, 90%);
  --pxme-color-border: hsl(220, 10%, 28%);
  --pxme-color-surface: hsl(220, 15%, 17%);
  --pxme-color-footer-bg: hsl(220, 15%, 8%);
  --pxme-color-footer-text: hsl(210, 15%, 65%);
  --pxme-color-header-bg: transparent;
  --pxme-color-header-text: var(--pxme-color-dark);

  --pxme-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --pxme-shadow-md: 0 4px 8px rgba(0, 0, 0, 0.35);
  --pxme-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.45);

  color-scheme: dark;
}

/* ==========================================================================
   CSS Reset (Modern)
   ========================================================================== */

html {
  font-family: 'Poppins', sans-serif;
  color: var(--pxme-color-dark);
  background-color: var(--pxme-color-light);
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  line-height: 1.6;
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -moz-tab-size: 4;
  tab-size: 4;
  -webkit-font-feature-settings: 'kern', 'liga', 'calt';
  font-feature-settings: 'kern', 'liga', 'calt';
}

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

* {
  margin: 0;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    interpolate-size: allow-keywords;
  }
}

body {
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  padding-bottom: var(--pxme-space-xl);
}

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

input, button, textarea, select {
  font: inherit;
}

p, h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
}

p {
  text-wrap: pretty;
}

h1, h2, h3, h4, h5, h6 {
  text-wrap: balance;
}

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

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

#root, #__next {
  isolation: isolate;
}

/* ==========================================================================
   Global Accessibility & Utility
   ========================================================================== */

/* Focus-visible ring (keyboard users only) */
:focus-visible {
  outline: 3px solid var(--pxme-color-primary);
  outline-offset: 2px;
  box-shadow: var(--pxme-focus-ring);
}

/* Skip link */
.pxme-skip-link {
  position: absolute;
  top: -100%;
  left: var(--pxme-space-md, 16px);
  z-index: 999;
  padding: var(--pxme-space-xs, 8px) var(--pxme-space-md, 16px);
  background: var(--pxme-color-primary);
  color: #fff;
  font-weight: var(--pxme-weight-semibold, 600);
  border-radius: 0 0 var(--pxme-radius-md, 8px) var(--pxme-radius-md, 8px);
  transition: top var(--pxme-transition-fast);
}

.pxme-skip-link:focus {
  top: 0;
  outline: 3px solid var(--pxme-color-primary);
  outline-offset: 2px;
}

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

/* ==========================================================================
   Layout — .pxme-root
   ========================================================================== */

.pxme-root {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.pxme-hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - 180px);
  padding: var(--pxme-space-2xl);
}

.pxme-hero__backdrop {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top left, color-mix(in srgb, var(--pxme-color-primary) 18%, transparent) 0, transparent 42%),
    radial-gradient(circle at bottom right, color-mix(in srgb, var(--pxme-color-warning) 16%, transparent) 0, transparent 36%),
    linear-gradient(135deg, color-mix(in srgb, var(--pxme-color-surface) 78%, var(--pxme-color-light) 22%), var(--pxme-color-light));
  pointer-events: none;
}

.pxme-hero__shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(18rem, 0.95fr);
  gap: var(--pxme-space-xl);
  align-items: stretch;
}

.pxme-hero__intro,
.pxme-hero__panel {
  border: 1px solid color-mix(in srgb, var(--pxme-color-border) 65%, transparent);
  border-radius: 28px;
  background: color-mix(in srgb, var(--pxme-color-surface) 82%, transparent);
  backdrop-filter: blur(10px);
  box-shadow: var(--pxme-shadow-lg);
}

.pxme-hero__intro {
  padding: clamp(2rem, 5vw, 4rem);
}

.pxme-hero__eyebrow {
  margin-bottom: var(--pxme-space-sm);
  color: var(--pxme-color-secondary);
  font-size: var(--pxme-font-xs);
  font-weight: var(--pxme-weight-bold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.pxme-hero__title {
  max-width: 12ch;
  margin-bottom: var(--pxme-space-md);
  font-size: clamp(2.6rem, 7vw, 5.4rem);
  line-height: 0.94;
}

.pxme-hero__message {
  max-width: 36rem;
  margin-bottom: var(--pxme-space-xl);
  color: var(--pxme-color-secondary);
  font-size: clamp(1rem, 2vw, 1.2rem);
}

.pxme-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--pxme-space-md);
}

.pxme-hero__cta {
  font: inherit;
  font-size: var(--pxme-font-base, 1rem);
  font-weight: var(--pxme-weight-semibold);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--pxme-space-sm) var(--pxme-space-xl);
  border-radius: 999px;
  transition:
    transform var(--pxme-transition-fast),
    background var(--pxme-transition-fast),
    color var(--pxme-transition-fast),
    border-color var(--pxme-transition-fast);
}

.pxme-hero__cta--primary {
  background: var(--pxme-color-primary);
  color: #fff;
  box-shadow: var(--pxme-shadow-md);
}

.pxme-hero__cta--primary:hover {
  background: var(--pxme-color-primary-dark);
  transform: translateY(-1px);
}

.pxme-hero__cta--secondary {
  border: 1px solid var(--pxme-color-border);
  color: var(--pxme-color-dark);
  background: transparent;
}

.pxme-hero__cta--secondary:hover {
  border-color: var(--pxme-color-primary);
  color: var(--pxme-color-primary);
  transform: translateY(-1px);
}

.pxme-hero__panel {
  display: grid;
  gap: var(--pxme-space-md);
  padding: var(--pxme-space-xl);
}

.pxme-hero__status {
  margin-top: var(--pxme-space-md);
  color: var(--pxme-color-secondary);
  font-size: var(--pxme-font-sm);
}

.pxme-hero__feature {
  padding: var(--pxme-space-md);
  border-radius: var(--pxme-radius-lg);
  background: color-mix(in srgb, var(--pxme-color-light) 38%, transparent);
}

.pxme-hero__feature-kicker {
  display: inline-block;
  margin-bottom: var(--pxme-space-xs);
  color: var(--pxme-color-primary);
  font-size: var(--pxme-font-xs);
  font-weight: var(--pxme-weight-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.pxme-hero__feature h2 {
  margin-bottom: var(--pxme-space-xs);
  font-size: var(--pxme-font-xl);
}

.pxme-hero__feature p {
  color: var(--pxme-color-secondary);
  font-size: var(--pxme-font-sm);
}

@media (max-width: 900px) {
  .pxme-hero {
    padding: var(--pxme-space-lg);
  }

  .pxme-hero__shell {
    grid-template-columns: 1fr;
  }

  .pxme-hero__title {
    max-width: none;
  }
}

.pxme-auth-complete {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: var(--pxme-space-xl);
  background:
    radial-gradient(circle at top left, color-mix(in srgb, var(--pxme-color-primary) 14%, transparent), transparent 42%),
    linear-gradient(180deg, color-mix(in srgb, var(--pxme-color-surface) 78%, var(--pxme-color-light) 22%), var(--pxme-color-light));
}

.pxme-auth-complete__panel {
  width: min(32rem, 100%);
  padding: var(--pxme-space-2xl);
  text-align: center;
  border-radius: 24px;
  border: 1px solid color-mix(in srgb, var(--pxme-color-border) 65%, transparent);
  background: color-mix(in srgb, var(--pxme-color-surface) 88%, transparent);
  box-shadow: var(--pxme-shadow-lg);
}

.pxme-auth-complete__eyebrow {
  margin-bottom: var(--pxme-space-sm);
  color: var(--pxme-color-secondary);
  font-size: var(--pxme-font-xs);
  font-weight: var(--pxme-weight-bold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ==========================================================================
   Image viewer body — .pxme-viewer__body
   (used on view.html <body> to set dark background)
   ========================================================================== */

.pxme-viewer__body {
  margin: 0;
  padding: 0;
  background: hsl(0, 0%, 7%);
  overflow: hidden;
}