/**
 * ZevX Store — Core Design Tokens, Reset & Spatial Foundation (main.css)
 *
 * Art Direction: Midnight Obsidian & Cyber Violet Gaming Commerce
 * - WCAG 2.2 AA/AAA contrast across text, buttons, badges, and form controls
 * - Zero third-party icon fonts, zero inline style dependencies (CSP style-src 'self' safe)
 * - Full support for Vietnamese diacritics, tabular VND pricing, and prefers-reduced-motion
 */

:root {
  color-scheme: dark;

  /* Light-First Legacy Fallback: #f6f7fb */
  --color-bg-light: #f6f7fb;
  --color-primary-deep: #6d28d9;

  /* Core Semantic Surfaces — Midnight Obsidian Palette */
  --color-bg: #080b14;
  --color-bg-primary: #080b14;
  --color-bg-secondary: #0d1322;
  --color-bg-subtle: #0d1220;
  --color-surface: #111827;
  --color-surface-solid: #111827;
  --color-surface-raised: #162035;
  --color-surface-hover: #1b2742;
  --color-surface-alt: #121a2b;
  --color-surface-card: linear-gradient(155deg, rgba(20, 29, 47, 0.98), rgba(15, 23, 38, 0.98));
  --color-border-strong: #3b4d70;
  --color-text-dim: #94a3b8;

  /* Borders & Interactive Boundaries (WCAG 1.4.11 >= 3:1 for controls) */
  --color-border: #1e2a42;
  --color-border-subtle: rgba(255, 255, 255, 0.08);
  --color-border-control: #334466;
  --color-border-focus: #38bdf8;

  /* Brand & Action Roles (Royal Violet - WCAG AAA 5.7:1 with white text) */
  --color-primary: #7c3aed;
  --color-primary-hover: #9061f9;
  --color-primary-active: #6d28d9;
  --color-primary-soft: rgba(124, 58, 237, 0.16);
  --color-primary-border: #7c3aed;

  --color-accent: #38bdf8;
  --color-accent-hover: #0ea5e9;
  --color-accent-soft: rgba(56, 189, 248, 0.16);
  --color-accent-bright: #7dd3fc;
  --color-brand-glow: rgba(56, 189, 248, 0.22);

  /* Typography Roles (Strict WCAG 2.2 AA / AAA Compliant) */
  --color-text: #f8fafc;
  --color-text-primary: #f8fafc;
  --color-text-secondary: #cbd5e1;
  --color-muted: #94a3b8;
  --color-text-muted: #94a3b8;
  --color-text-price: #38bdf8;
  --color-text-price-sale: #f43f5e;
  --color-text-price-orig: #94a3b8;
  --color-text-on-accent: #ffffff;

  /* Status & Feedback Roles (High-Luminance text for dark surface) */
  --color-success: #10b981;
  --color-success-light: #34d399;
  --color-success-bg: rgba(16, 185, 129, 0.14);
  --color-success-border: rgba(16, 185, 129, 0.35);

  --color-warning: #f59e0b;
  --color-warning-light: #fbbf24;
  --color-warning-bg: rgba(245, 158, 11, 0.14);
  --color-warning-border: rgba(245, 158, 11, 0.35);

  --color-danger: #ef4444;
  --color-danger-light: #f87171;
  --color-danger-bg: rgba(239, 68, 68, 0.14);
  --color-danger-border: rgba(239, 68, 68, 0.35);

  --color-info: #38bdf8;
  --color-info-light: #7dd3fc;
  --color-info-bg: rgba(56, 189, 248, 0.14);
  --color-info-border: rgba(56, 189, 248, 0.35);

  /* Motion Tokens (5-Level Motion Architecture) */
  --motion-instant: 100ms;
  --motion-fast: 160ms;
  --motion-normal: 240ms;
  --motion-slow: 380ms;
  --motion-emphasis: 520ms;

  --ease-standard: cubic-bezier(0.2, 0.8, 0.2, 1);
  --ease-enter: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-exit: cubic-bezier(0.7, 0, 0.84, 0);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-emphasis: cubic-bezier(0.22, 1, 0.36, 1);

  /* Selective Dark Editorial Hero Tokens */
  --hero-bg-start: #0b1221;
  --hero-bg-end: #111a2d;
  --hero-border: #293752;
  --hero-text: #f8fafc;
  --hero-muted: #cbd5e1;
  --hero-eyebrow: #c4b5fd;

  /* Typography Families */
  --font-family-sans: "Inter", "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-family-display: "Inter", "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
  --font-family-mono: "JetBrains Mono", "Cascadia Code", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* Type Scale */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: clamp(1.35rem, 2.2vw, 1.75rem);
  --font-size-3xl: clamp(1.65rem, 3vw, 2.25rem);
  --font-size-hero: clamp(1.75rem, 3.4vw, 2.65rem);

  --line-height-tight: 1.22;
  --line-height-snug: 1.38;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.72;

  /* 4px / 8px Spatial Scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;

  /* Border Radii */
  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 22px;
  --radius-full: 9999px;

  /* Elevation & Depth with Cyber Violet Glow */
  --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.45);
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.4), 0 1px 3px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 12px 28px -6px rgba(0, 0, 0, 0.55), 0 4px 12px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 24px 52px -12px rgba(0, 0, 0, 0.72), 0 0 26px rgba(139, 92, 246, 0.12);
  --shadow-focus: 0 0 0 3px rgba(139, 92, 246, 0.45);
  --ambient-glow: 0 8px 30px rgba(139, 92, 246, 0.12);

  /* Apple Fluid Motion & Spring Curves */
  --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-fast: 160ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 240ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 380ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-tab: 260ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Container Widths */
  --container-max: 1240px;
  --container-narrow: 860px;

  font-family: var(--font-family-sans);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

html {
  min-width: 320px;
  min-height: 100%;
  background-color: var(--color-bg);
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-family-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
}

main {
  flex: 1 0 auto;
}

img,
svg {
  max-width: 100%;
}

img {
  display: block;
}

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

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

h1, h2, h3, h4, h5, h6 {
  color: var(--color-text);
  font-family: var(--font-family-display);
  letter-spacing: -0.02em;
  line-height: var(--line-height-tight);
  margin-top: 0;
}

p {
  margin-top: 0;
}

code,
pre,
.mono {
  font-family: var(--font-family-mono);
}

/* Tabular Numbers for Prices, Quantities, Order Codes & Stats */
.product-price,
.product-current-price,
.product-original-price,
.product-detail-original-price,
.price-value,
.order-summary-value,
.summary-val,
.summary-total-val,
.calc-val,
.calc-total-val,
.bank-val-amount,
.stat-value,
.stat-number,
.tabular-nums {
  font-variant-numeric: tabular-nums;
}

/* Keyboard Focus Ring (WCAG 2.2 Focus Appearance) */
:focus-visible {
  outline: 2.5px solid var(--color-border-focus);
  outline-offset: 2px;
}

/* Skip Link for Keyboard Users */
.skip-link {
  position: fixed;
  top: -120px;
  left: 16px;
  z-index: 9999;
  padding: 10px 18px;
  background: var(--color-primary);
  color: #ffffff;
  font-size: var(--font-size-sm);
  font-weight: 700;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 14px;
  outline: 3px solid #fde047;
  outline-offset: 2px;
}

/* Visually Hidden Utility for Screen Readers */
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 20px;
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin-inline: auto;
  padding-inline: 20px;
}

/* CSP-Safe State & Layout Utilities (Replaces all inline style attributes) */
.is-hidden,
[hidden] {
  display: none !important;
}

.d-flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.flex-wrap { flex-wrap: wrap; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }
.text-sm { font-size: var(--font-size-sm); }
.text-xs { font-size: var(--font-size-xs); }
.text-muted { color: var(--color-muted); }
.text-accent { color: var(--color-primary); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-danger { color: var(--color-danger); }
.font-bold { font-weight: 700; }

.mt-0 { margin-top: 0; }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.w-full { width: 100%; }


/* ==========================================================================
   Announcement & Campaign Popup System Styles
   ========================================================================== */
/**
 * ZevX Store — Announcement & Campaign Popup System
 * High-End Dark Gaming Aesthetic, Strict CSP Compliant (Zero inline styles)
 */

/* Scroll Lock on Document Body */
body.announcement-open {
  overflow: hidden !important;
  touch-action: none;
}

/* Modal Overlay Backdrop */
.announcement-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  background-color: rgba(5, 7, 15, 0.78);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.announcement-overlay.is-visible {
  opacity: 1;
  visibility: visible;
}

/* Modal Box Container */
.announcement-modal {
  position: relative;
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, #0d1322 0%, #080c16 100%);
  border: 1px solid rgba(56, 189, 248, 0.25);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.75), 0 0 35px -5px rgba(6, 182, 212, 0.15);
  border-radius: 20px;
  overflow: hidden;
  transform: scale(0.94) translateY(12px);
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

.announcement-overlay.is-visible .announcement-modal {
  transform: scale(1) translateY(0);
}

/* Header Section */
.announcement-header {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem 0.75rem;
  background: rgba(15, 23, 42, 0.6);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.announcement-header-left {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  min-width: 0;
}

.announcement-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  font-size: 0.6875rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #7dd3fc;
  background: #141e33;
  border: 1px solid rgba(56, 189, 248, 0.35);
  border-radius: 9999px;
  white-space: nowrap;
}

.announcement-title {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.35;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Close Button [X] */
.announcement-btn-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  color: #94a3b8;
  cursor: pointer;
  transition: all 0.2s ease;
}

.announcement-btn-close:hover {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.35);
  color: #f87171;
  transform: rotate(90deg);
}

.announcement-btn-close:focus-visible {
  outline: 2px solid #38bdf8;
  outline-offset: 2px;
}

.announcement-btn-close svg {
  width: 18px;
  height: 18px;
}

/* Scrollable Body Content */
.announcement-body {
  padding: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  max-height: calc(90vh - 130px);
}

/* Banner Container */
.announcement-banner-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #070b16;
  overflow: hidden;
}

.announcement-banner-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: opacity 0.3s ease;
}

/* Description Text */
.announcement-desc-wrap {
  padding: 1rem 1.25rem 0.5rem;
}

.announcement-desc {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: #cbd5e1;
}

/* Footer Section */
.announcement-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 0.875rem 1.25rem;
  background: rgba(11, 16, 29, 0.9);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.announcement-btn-dismiss {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0.5rem 1.125rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #cbd5e1;
  background: #192338;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.announcement-btn-dismiss:hover {
  background: #223254;
  color: #ffffff;
  border-color: rgba(56, 189, 248, 0.4);
}

.announcement-btn-dismiss:focus-visible {
  outline: 2px solid #38bdf8;
  outline-offset: 2px;
}

.announcement-btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 42px;
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: #ffffff;
  background-color: #7c3aed;
  background-image: linear-gradient(135deg, #7c3aed 0%, #6d28d9 50%, #4f46e5 100%);
  border: 1px solid rgba(167, 139, 250, 0.4);
  border-radius: 10px;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.4);
  transition: all 0.25s ease;
}

.announcement-btn-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(124, 58, 237, 0.6);
  filter: brightness(1.12);
  color: #ffffff;
}

.announcement-btn-cta:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: 2px;
}

.announcement-btn-cta svg {
  width: 16px;
  height: 16px;
  transition: transform 0.2s ease;
}

.announcement-btn-cta:hover svg {
  transform: translateX(3px);
}

/* Reduced Motion Override */
@media (prefers-reduced-motion: reduce) {
  .announcement-overlay,
  .announcement-modal,
  .announcement-btn-close,
  .announcement-btn-cta,
  .announcement-btn-cta svg {
    transition: none !important;
    animation: none !important;
    transform: none !important;
  }
}

/* Responsive down to narrow Mobile (390px - 360px) */
@media (max-width: 480px) {
  .announcement-overlay {
    padding: 0.75rem;
  }

  .announcement-modal {
    border-radius: 16px;
  }

  .announcement-header {
    padding: 0.75rem 1rem;
  }

  .announcement-title {
    font-size: 0.9375rem;
  }

  .announcement-badge {
    font-size: 0.625rem;
    padding: 0.2rem 0.5rem;
  }

  .announcement-desc-wrap {
    padding: 0.875rem 1rem 0.5rem;
  }

  .announcement-desc {
    font-size: 0.875rem;
  }

  .announcement-footer {
    flex-direction: column-reverse;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
  }

  .announcement-btn-dismiss,
  .announcement-btn-cta {
    width: 100%;
    min-height: 44px;
  }
}