/**
 * Nova UI Kit — Shared Tokens & Primitives
 * Used across all Nova pages (Store, Products, Support, Company)
 * 
 * RULES:
 * - Use var(--nova-*) for all colors, spacing, radii, shadows, motion.
 * - Use logical properties (margin-inline-start, padding-inline-end) for RTL support.
 * - This file should NOT contain page-specific styles.
 */

/* ============================================
   TOKENS (Single source of truth)
   ============================================ */

:root {
  /* Rendering hints */
  color-scheme: dark;

  /* Typography */
  --nova-font-sans: "Test Soehne Buch", Arial, sans-serif;
  --nova-font-sans-strong: "Test Soehne Kraftig", Arial, sans-serif;
  --nova-font-mono: "Test Soehne Mono Kraftig", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Core colors (dark) */
  --nova-bg: #0a0a0a;
  --nova-surface-1: rgba(255, 255, 255, 0.02);
  --nova-surface-2: rgba(255, 255, 255, 0.03);
  --nova-surface-3: rgba(255, 255, 255, 0.05);
  --nova-border-1: rgba(255, 255, 255, 0.08);
  --nova-border-2: rgba(255, 255, 255, 0.12);
  --nova-border-strong: rgba(255, 255, 255, 0.14);

  --nova-text-1: rgba(238, 238, 238, 0.92);
  --nova-text-2: rgba(238, 238, 238, 0.70);
  --nova-text-3: rgba(238, 238, 238, 0.55);
  --nova-text-4: rgba(238, 238, 238, 0.40);
  --nova-text-strong: #fff;

  /* Accent (use sparingly) */
  --nova-accent: #0953c7;
  --nova-accent-2: #4a9eff;
  --nova-accent-surface: rgba(9, 83, 199, 0.18);
  --nova-accent-border: rgba(9, 83, 199, 0.45);
  --nova-accent-hover: #0a5fd9;

  /* Glass */
  --nova-glass-bg: rgba(20, 20, 20, 0.95);
  --nova-overlay-backdrop: rgba(0, 0, 0, 0.72);

  /* Spacing (4/8-based) */
  --nova-space-1: 4px;
  --nova-space-2: 8px;
  --nova-space-3: 12px;
  --nova-space-4: 16px;
  --nova-space-5: 20px;
  --nova-space-6: 24px;
  --nova-space-7: 32px;
  --nova-space-8: 40px;
  --nova-space-9: 48px;
  --nova-space-10: 60px;

  /* Radii */
  --nova-radius-sm: 10px;
  --nova-radius-md: 12px;
  --nova-radius-lg: 16px;
  --nova-radius-xl: 18px;
  --nova-radius-pill: 999px;

  /* Elevation */
  --nova-shadow-1: 0 10px 30px rgba(0, 0, 0, 0.35);
  --nova-shadow-2: 0 18px 60px rgba(0, 0, 0, 0.55);
  --nova-inset-1: inset 0 1px 0 rgba(255, 255, 255, 0.10);

  /* Motion */
  --nova-ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
  --nova-ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --nova-dur-1: 120ms;
  --nova-dur-2: 200ms;
  --nova-dur-3: 300ms;
  --nova-dur-4: 450ms;
}

/* ============================================
   BASE STYLES
   ============================================ */

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

html {
  background-color: var(--nova-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--nova-bg);
  color: var(--nova-text-1);
  font-family: var(--nova-font-sans);
  font-size: 16px;
  line-height: 1.6;
}

/* ============================================
   TYPOGRAPHY PRIMITIVES
   ============================================ */

.nova-kicker {
  font-family: var(--nova-font-sans-strong);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--nova-text-3);
  margin-block-end: var(--nova-space-3);
}

.nova-headline {
  font-family: var(--nova-font-sans-strong);
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.1;
  color: var(--nova-text-strong);
  margin: 0 0 var(--nova-space-4);
}

.nova-headline--sm {
  font-size: clamp(24px, 4vw, 36px);
}

.nova-headline--lg {
  font-size: clamp(40px, 6vw, 72px);
}

.nova-body {
  font-family: var(--nova-font-sans);
  font-size: 17px;
  line-height: 1.7;
  color: var(--nova-text-2);
  max-width: 65ch;
}

.nova-body--sm {
  font-size: 15px;
}

.nova-body--lg {
  font-size: 19px;
}

/* ============================================
   BUTTON PRIMITIVES
   ============================================ */

.nova-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--nova-space-2);
  padding: var(--nova-space-3) var(--nova-space-5);
  border: none;
  border-radius: var(--nova-radius-pill);
  font-family: var(--nova-font-sans-strong);
  font-size: 15px;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--nova-dur-2) var(--nova-ease-out);
}

.nova-btn:focus-visible {
  outline: 2px solid var(--nova-accent);
  outline-offset: 2px;
}

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

.nova-btn--primary:hover {
  background: var(--nova-accent-hover);
  transform: translateY(-1px);
}

.nova-btn--secondary {
  background: var(--nova-surface-3);
  color: var(--nova-text-1);
  border: 1px solid var(--nova-border-2);
}

.nova-btn--secondary:hover {
  background: var(--nova-surface-2);
  border-color: var(--nova-border-strong);
}

.nova-btn--ghost {
  background: transparent;
  color: var(--nova-text-1);
}

.nova-btn--ghost:hover {
  background: var(--nova-surface-2);
}

/* ============================================
   CARD PRIMITIVES
   ============================================ */

.nova-card {
  background: var(--nova-surface-2);
  border: 1px solid var(--nova-border-1);
  border-radius: var(--nova-radius-xl);
  padding: var(--nova-space-6);
  transition: all var(--nova-dur-2) var(--nova-ease-out);
}

.nova-card:hover {
  border-color: var(--nova-border-2);
  box-shadow: var(--nova-shadow-1);
}

.nova-card--interactive {
  cursor: pointer;
}

.nova-card--interactive:hover {
  transform: translateY(-2px);
}

/* ============================================
   PRODUCT CARD (for Store Home)
   ============================================ */

.nova-product-card {
  display: flex;
  flex-direction: column;
  background: var(--nova-surface-2);
  border: 1px solid var(--nova-border-1);
  border-radius: var(--nova-radius-xl);
  overflow: hidden;
  text-decoration: none;
  transition: all var(--nova-dur-3) var(--nova-ease-out);
}

.nova-product-card:hover {
  border-color: var(--nova-border-2);
  box-shadow: var(--nova-shadow-1);
  transform: translateY(-4px);
}

.nova-product-card__image {
  aspect-ratio: 4 / 3;
  background: linear-gradient(145deg, rgba(30,30,30,0.95) 0%, rgba(15,15,15,0.98) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--nova-space-6);
}

.nova-product-card__image img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.nova-product-card__body {
  padding: var(--nova-space-5);
}

.nova-product-card__kicker {
  font-family: var(--nova-font-sans-strong);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--nova-text-3);
  margin-block-end: var(--nova-space-1);
}

.nova-product-card__title {
  font-family: var(--nova-font-sans-strong);
  font-size: 20px;
  color: var(--nova-text-strong);
  margin: 0 0 var(--nova-space-2);
}

.nova-product-card__desc {
  font-family: var(--nova-font-sans);
  font-size: 14px;
  color: var(--nova-text-2);
  line-height: 1.5;
  margin: 0 0 var(--nova-space-4);
}

.nova-product-card__price {
  font-family: var(--nova-font-sans-strong);
  font-size: 15px;
  color: var(--nova-text-1);
}

.nova-product-card__price span {
  color: var(--nova-text-3);
  font-family: var(--nova-font-sans);
}

/* ============================================
   LAYOUT PRIMITIVES
   ============================================ */

.nova-container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--nova-space-6);
}

.nova-container--narrow {
  max-width: 900px;
}

.nova-container--wide {
  max-width: 1400px;
}

.nova-section {
  padding-block: var(--nova-space-10);
}

.nova-section--hero {
  padding-block: calc(var(--nova-space-10) * 2) var(--nova-space-10);
}

.nova-grid {
  display: grid;
  gap: var(--nova-space-6);
}

.nova-grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

.nova-grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.nova-grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
  .nova-grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nova-grid--2,
  .nova-grid--3,
  .nova-grid--4 {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   GLOBAL NAV
   ============================================ */

.nova-global-nav {
  position: fixed;
  top: 0;
  inset-inline: 0;
  z-index: 1000;
  background: var(--nova-glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-block-end: 1px solid var(--nova-border-1);
}

.nova-global-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  max-width: 1400px;
  margin-inline: auto;
  padding-inline: var(--nova-space-6);
}

.nova-global-nav__logo {
  font-family: var(--nova-font-sans-strong);
  font-size: 18px;
  color: var(--nova-text-strong);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--nova-space-2);
}

.nova-global-nav__logo img {
  height: 28px;
  width: auto;
}

.nova-global-nav__links {
  display: flex;
  align-items: center;
  gap: var(--nova-space-1);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nova-global-nav__link {
  font-family: var(--nova-font-sans-strong);
  font-size: 14px;
  color: var(--nova-text-2);
  text-decoration: none;
  padding: var(--nova-space-2) var(--nova-space-3);
  border-radius: var(--nova-radius-sm);
  transition: all var(--nova-dur-1) var(--nova-ease-standard);
}

.nova-global-nav__link:hover {
  color: var(--nova-text-1);
  background: var(--nova-surface-2);
}

.nova-global-nav__link[aria-current="page"] {
  color: var(--nova-text-strong);
}

.nova-global-nav__actions {
  display: flex;
  align-items: center;
  gap: var(--nova-space-3);
}

/* Mobile nav toggle */
.nova-global-nav__toggle {
  display: none;
  background: none;
  border: none;
  padding: var(--nova-space-2);
  cursor: pointer;
  color: var(--nova-text-1);
}

@media (max-width: 768px) {
  .nova-global-nav__links {
    display: none;
  }
  
  .nova-global-nav__toggle {
    display: flex;
  }
}

/* ============================================
   MEGA MENU
   ============================================ */

.nova-mega-menu {
  position: absolute;
  top: 100%;
  inset-inline-start: 0;
  inset-inline-end: 0;
  background: var(--nova-glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-block-end: 1px solid var(--nova-border-1);
  padding: var(--nova-space-6);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--nova-dur-3) var(--nova-ease-out);
}

.nova-mega-menu.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nova-mega-menu__inner {
  max-width: 1000px;
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--nova-space-8);
}

.nova-mega-menu__section h3 {
  font-family: var(--nova-font-sans-strong);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--nova-text-3);
  margin: 0 0 var(--nova-space-4);
}

.nova-mega-menu__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--nova-space-1);
}

.nova-mega-menu__item a {
  display: flex;
  align-items: center;
  gap: var(--nova-space-3);
  padding: var(--nova-space-3);
  border-radius: var(--nova-radius-md);
  text-decoration: none;
  color: var(--nova-text-1);
  transition: all var(--nova-dur-2) var(--nova-ease-out);
}

.nova-mega-menu__item a:hover {
  background: var(--nova-surface-3);
}

.nova-mega-menu__item-icon {
  width: 40px;
  height: 40px;
  background: var(--nova-surface-2);
  border-radius: var(--nova-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.nova-mega-menu__item-text {
  flex: 1;
}

.nova-mega-menu__item-title {
  font-family: var(--nova-font-sans-strong);
  font-size: 15px;
  color: var(--nova-text-strong);
}

.nova-mega-menu__item-desc {
  font-family: var(--nova-font-sans);
  font-size: 13px;
  color: var(--nova-text-3);
}

@media (max-width: 768px) {
  .nova-mega-menu__inner {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   LANGUAGE SWITCHER
   ============================================ */

.nova-lang-switch {
  position: relative;
}

.nova-lang-switch__btn {
  display: flex;
  align-items: center;
  gap: var(--nova-space-2);
  padding: var(--nova-space-2) var(--nova-space-3);
  background: transparent;
  border: 1px solid var(--nova-border-1);
  border-radius: var(--nova-radius-sm);
  font-family: var(--nova-font-sans-strong);
  font-size: 13px;
  color: var(--nova-text-2);
  cursor: pointer;
  transition: all var(--nova-dur-1) var(--nova-ease-standard);
}

.nova-lang-switch__btn:hover {
  background: var(--nova-surface-2);
  border-color: var(--nova-border-2);
}

.nova-lang-switch__dropdown {
  position: absolute;
  top: calc(100% + var(--nova-space-2));
  inset-inline-end: 0;
  background: var(--nova-glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--nova-border-1);
  border-radius: var(--nova-radius-md);
  padding: var(--nova-space-2);
  min-width: 140px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: all var(--nova-dur-2) var(--nova-ease-out);
}

.nova-lang-switch__dropdown.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nova-lang-switch__option {
  display: block;
  width: 100%;
  padding: var(--nova-space-2) var(--nova-space-3);
  border: none;
  border-radius: var(--nova-radius-sm);
  background: transparent;
  font-family: var(--nova-font-sans-strong);
  font-size: 14px;
  color: var(--nova-text-2);
  text-align: start;
  cursor: pointer;
  transition: all var(--nova-dur-1) var(--nova-ease-standard);
}

.nova-lang-switch__option:hover {
  background: var(--nova-surface-3);
  color: var(--nova-text-1);
}

.nova-lang-switch__option.is-active {
  color: var(--nova-accent-2);
}

/* ============================================
   FOOTER
   ============================================ */

.nova-footer {
  background: var(--nova-bg);
  border-block-start: 1px solid var(--nova-border-1);
  padding-block: var(--nova-space-10);
}

.nova-footer__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--nova-space-8);
  margin-block-end: var(--nova-space-10);
}

.nova-footer__col h4 {
  font-family: var(--nova-font-sans-strong);
  font-size: 13px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--nova-text-3);
  margin: 0 0 var(--nova-space-4);
}

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

.nova-footer__col li {
  margin-block-end: var(--nova-space-2);
}

.nova-footer__col a {
  font-family: var(--nova-font-sans);
  font-size: 14px;
  color: var(--nova-text-2);
  text-decoration: none;
  transition: color var(--nova-dur-1) var(--nova-ease-standard);
}

.nova-footer__col a:hover {
  color: var(--nova-text-1);
}

.nova-footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-block-start: var(--nova-space-6);
  border-block-start: 1px solid var(--nova-border-1);
}

.nova-footer__legal {
  font-family: var(--nova-font-sans);
  font-size: 13px;
  color: var(--nova-text-3);
}

.nova-footer__legal a {
  color: var(--nova-text-3);
  text-decoration: none;
  margin-inline-start: var(--nova-space-4);
}

.nova-footer__legal a:hover {
  color: var(--nova-text-2);
}

@media (max-width: 768px) {
  .nova-footer__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--nova-space-6);
  }
  
  .nova-footer__bottom {
    flex-direction: column;
    gap: var(--nova-space-4);
    text-align: center;
  }
}

/* ============================================
   REDUCED MOTION
   ============================================ */

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

/* ============================================
   FOCUS STYLES
   ============================================ */

:focus-visible {
  outline: 2px solid var(--nova-accent);
  outline-offset: 2px;
}

/* ============================================
   SKIP LINK (Accessibility)
   ============================================ */

.nova-skip-link {
  position: absolute;
  top: -40px;
  inset-inline-start: 0;
  background: var(--nova-accent);
  color: #fff;
  padding: var(--nova-space-2) var(--nova-space-4);
  z-index: 10000;
  font-family: var(--nova-font-sans-strong);
  font-size: 14px;
  text-decoration: none;
  border-radius: 0 0 var(--nova-radius-sm) 0;
}

.nova-skip-link:focus {
  top: 0;
}