/* QPerfect Documentation portal — shared styles.
   Tokens mirror the qperfect.io theme (themes/qperfect/style.css). */

:root {
  --color-primary: #157f8f;
  --color-primary-dark: #0e5f6b;
  --color-primary-light: #1a9fb3;
  --color-accent: #f5bd22;
  --color-accent-dark: #d4a31d;
  --color-qlu: #c06090;

  --color-dark: #0a1419;
  --color-dark-secondary: #0f1e24;
  --color-dark-tertiary: #1a2e36;
  --color-dark-hero: #0b1c21;

  --color-text-light: #dde9ec;
  --color-text-light-secondary: #8fa5ae;
  --color-border-dark: #2a4450;

  --font-heading: 'Plus Jakarta Sans', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  --container-max: 1100px;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-light);
  background-color: var(--color-dark-hero);
  min-height: 100vh;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

/* Teal-tinted dark backdrop: faint grid + slow glow halos. */
.backdrop {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.backdrop__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(26, 159, 179, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 159, 179, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
}

.backdrop__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.16;
}

.backdrop__glow--teal {
  width: 460px;
  height: 460px;
  background: var(--color-primary-light);
  top: -140px;
  right: -120px;
  animation: glow-drift 14s ease-in-out infinite;
}

.backdrop__glow--amber {
  width: 340px;
  height: 340px;
  background: var(--color-accent);
  bottom: -120px;
  left: -100px;
  animation: glow-drift 18s ease-in-out infinite reverse;
}

@keyframes glow-drift {
  0%, 100% { transform: scale(1); opacity: 0.12; }
  50% { transform: scale(1.1); opacity: 0.2; }
}

/* Layout */
.container {
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.page {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header */
.site-header {
  padding: var(--space-2xl) 0 var(--space-md);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.site-header__logo {
  width: 44px;
  height: 44px;
}

.site-header__name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.site-header__name span {
  display: block;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.8rem;
  color: var(--color-text-light-secondary);
}

.breadcrumb {
  font-size: 0.85rem;
  color: var(--color-text-light-secondary);
}

.breadcrumb a:hover {
  color: var(--color-accent);
}

/* Hero */
.hero {
  text-align: center;
  padding: var(--space-3xl) 0 var(--space-2xl);
}

.hero__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
}

.hero__label::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
}

.hero__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
}

.hero__subtitle {
  max-width: 620px;
  margin: 0 auto;
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  line-height: 1.7;
  color: var(--color-text-light);
}

/* Sections */
.section {
  padding: var(--space-2xl) 0;
}

.section__label {
  text-align: center;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary-light);
  margin-bottom: var(--space-xl);
}

/* Card grid */
.card-grid {
  display: grid;
  gap: var(--space-xl);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  max-width: 760px;
  margin: 0 auto;
}

.card-grid--single {
  max-width: 460px;
}

/* Cards — accent driven by --card-accent set per modifier. */
.card {
  --card-accent: var(--color-primary);
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--color-dark-secondary);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl) var(--space-xl);
  overflow: hidden;
  transition: transform var(--transition-slow), border-color var(--transition-slow), box-shadow var(--transition-slow);
}

.card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--card-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--card-accent);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

.card:hover::after {
  transform: scaleX(1);
}

.card--accent { --card-accent: var(--color-accent); }
.card--qlu { --card-accent: var(--color-qlu); }

.card__icon {
  width: 56px;
  height: 56px;
  object-fit: contain;
  object-position: left;
  margin-bottom: var(--space-lg);
}

.card__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.card__package {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-light);
  background: rgba(26, 159, 179, 0.12);
  border: 1px solid var(--color-border-dark);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
}

.card__text {
  color: var(--color-text-light-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: var(--space-lg);
  flex: 1;
}

.card__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--card-accent);
}

.card__cta svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-base);
}

.card:hover .card__cta svg {
  transform: translateX(4px);
}

/* "New" badge */
.badge {
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-dark);
  background: var(--color-accent);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
}

/* Secondary "also available" row */
.secondary {
  max-width: 760px;
  margin: var(--space-xl) auto 0;
}

.secondary__note {
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-light-secondary);
  margin-bottom: var(--space-md);
}

.secondary-card {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  max-width: 460px;
  margin: 0 auto;
  padding: var(--space-md) var(--space-lg);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-base), background var(--transition-base);
}

.secondary-card:hover {
  border-color: var(--color-primary);
  background: rgba(21, 127, 143, 0.08);
}

.secondary-card__icon {
  width: 32px;
  height: 32px;
  object-fit: contain;
  flex-shrink: 0;
}

.secondary-card__body {
  flex: 1;
}

.secondary-card__title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
}

.secondary-card__title code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-light-secondary);
  font-weight: 400;
}

.secondary-card__arrow {
  color: var(--color-text-light-secondary);
  transition: transform var(--transition-base), color var(--transition-base);
}

.secondary-card:hover .secondary-card__arrow {
  color: var(--color-primary-light);
  transform: translateX(3px);
}

/* Footer */
.site-footer {
  margin-top: auto;
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--color-border-dark);
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-xl);
  margin-bottom: var(--space-md);
}

.site-footer__links a {
  font-size: 0.88rem;
  color: var(--color-text-light-secondary);
  transition: color var(--transition-base);
}

.site-footer__links a:hover {
  color: var(--color-accent);
}

.site-footer__copy {
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-light-secondary);
}

.site-footer__copy a {
  color: var(--color-primary-light);
}

/* Fade-in on load */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  animation: fade-in 0.7s ease-out forwards;
}

.fade-in:nth-child(2) { animation-delay: 0.08s; }
.fade-in:nth-child(3) { animation-delay: 0.16s; }

@keyframes fade-in {
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 560px) {
  .site-header__inner { flex-direction: column; align-items: flex-start; }
  .site-footer__links { gap: var(--space-md); }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .fade-in { opacity: 1; transform: none; }
}