/* =========================================================
   Plonexia Base Styles - assets/css/base.css
   Modern, dynamic, gamer-centric, tech-inspired
   ========================================================= */

/* =========================================================
   1. CSS VARIABLES (THEME TOKENS)
   ========================================================= */
:root {
  /* Color Palette */
  --color-bg: #05060b; /* deep near-black */
  --color-bg-elevated: #0c0f18; 
  --color-bg-muted: #111320;

  --color-text: #f5f7ff;
  --color-text-muted: #a0a4c0;
  --color-border-subtle: #202338;

  --color-primary: #4b8bff; /* electric blue */
  --color-primary-soft: rgba(75, 139, 255, 0.12);
  --color-primary-strong: #7b5cff; /* neon violet accent */

  --color-success: #3dd68c;
  --color-warning: #ffc857;
  --color-danger: #ff4b6b;

  --gray-50: #f8fafc;
  --gray-100: #e2e8f0;
  --gray-200: #cbd5f5;
  --gray-300: #a0aec0;
  --gray-400: #718096;
  --gray-500: #4a5568;
  --gray-600: #2d3748;
  --gray-700: #1a202c;
  --gray-800: #111827;
  --gray-900: #05060b;

  /* Gradients (for hover states / accents) */
  --gradient-primary: linear-gradient(135deg, #4b8bff 0%, #7b5cff 50%, #20f5ff 100%);
  --gradient-card-border: linear-gradient(135deg, rgba(75, 139, 255, 0.6), rgba(32, 245, 255, 0.25));

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", sans-serif;
  --font-display: "Rajdhani", "Orbitron", system-ui, -apple-system, sans-serif;

  --font-size-xs: 0.75rem;   /* 12px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-md: 1rem;      /* 16px */
  --font-size-lg: 1.125rem;  /* 18px */
  --font-size-xl: 1.25rem;   /* 20px */
  --font-size-2xl: 1.5rem;   /* 24px */
  --font-size-3xl: 1.875rem; /* 30px */
  --font-size-4xl: 2.25rem;  /* 36px */

  --line-height-tight: 1.1;
  --line-height-snug: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  /* Spacing scale (0–96px) */
  --space-0: 0;
  --space-1: 0.125rem; /* 2px */
  --space-2: 0.25rem;  /* 4px */
  --space-3: 0.375rem; /* 6px */
  --space-4: 0.5rem;   /* 8px */
  --space-6: 0.75rem;  /* 12px */
  --space-8: 1rem;     /* 16px */
  --space-10: 1.25rem; /* 20px */
  --space-12: 1.5rem;  /* 24px */
  --space-16: 2rem;    /* 32px */
  --space-20: 2.5rem;  /* 40px */
  --space-24: 3rem;    /* 48px */
  --space-28: 3.5rem;  /* 56px */
  --space-32: 4rem;    /* 64px */
  --space-40: 5rem;    /* 80px */
  --space-48: 6rem;    /* 96px */

  /* Radii */
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 18px;
  --radius-pill: 999px;

  /* Shadows (subtle neon, no heavy blur) */
  --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.35);
  --shadow-strong: 0 18px 45px rgba(0, 0, 0, 0.6);
  --shadow-glow-primary: 0 0 18px rgba(75, 139, 255, 0.55);

  /* Transitions */
  --duration-fast: 120ms;
  --duration-normal: 200ms;
  --duration-slow: 320ms;
  --easing-standard: cubic-bezier(0.25, 0.1, 0.25, 1);

  /* Layout */
  --container-max-width: 1200px;
  --container-padding-x: 1.25rem;
}

/* Respect prefers-reduced-motion for transitions & scroll behavior */
@media (prefers-reduced-motion: reduce) {
  :root {
    --duration-fast: 0ms;
    --duration-normal: 0ms;
    --duration-slow: 0ms;
  }
}

/* =========================================================
   2. RESET / NORMALIZE
   ========================================================= */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  min-height: 100vh;
}

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

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

button {
  border: none;
  padding: 0;
  background: none;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

h1,
 h2,
 h3,
 h4,
 h5,
 h6,
 p,
 figure,
 blockquote,
 dl,
 dd {
  margin: 0;
}

/* =========================================================
   3. BASE TYPOGRAPHY & ELEMENTS
   ========================================================= */
body {
  font-family: var(--font-sans);
  font-size: var(--font-size-md);
  line-height: var(--line-height-normal);
  background-color: var(--color-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

main {
  min-height: 60vh;
}

/* Headings: display type for strong gamer brand feel */
h1,
.h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 2.8rem);
  line-height: var(--line-height-tight);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-8);
}

h2,
.h2 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  line-height: var(--line-height-snug);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: var(--space-6);
}

h3,
.h3 {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.2vw, 1.6rem);
  line-height: var(--line-height-snug);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

h4,
.h4 {
  font-size: 1.125rem;
  line-height: var(--line-height-snug);
  margin-bottom: var(--space-3);
}

h5,
.h5 {
  font-size: 1rem;
  margin-bottom: var(--space-2);
}

h6,
.h6 {
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

p {
  margin-bottom: var(--space-6);
  color: var(--color-text-muted);
}

strong,
 b {
  font-weight: 600;
  color: var(--color-text);
}

small {
  font-size: var(--font-size-sm);
}

/* Links */
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--duration-normal) var(--easing-standard),
    text-shadow var(--duration-normal) var(--easing-standard);
}

a:hover {
  color: var(--color-primary-strong);
  text-shadow: 0 0 12px rgba(75, 139, 255, 0.6);
}

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Horizontal rules for subtle section separators */
hr {
  border: 0;
  border-top: 1px solid var(--color-border-subtle);
  margin: var(--space-16) 0;
}

/* =========================================================
   4. ACCESSIBILITY & FOCUS STYLES
   ========================================================= */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

:focus {
  outline: none;
}

/* 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;
}

/* =========================================================
   5. UTILITIES
   ========================================================= */

/* Layout container */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding-x);
  padding-right: var(--container-padding-x);
}

/* Section padding helpers */
.section {
  padding-top: var(--space-24);
  padding-bottom: var(--space-24);
}

.section--dense {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

/* Flex helpers */
.flex {
  display: flex;
}

.inline-flex {
  display: inline-flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-column {
  display: flex;
  flex-direction: column;
}

.gap-sm {
  gap: var(--space-4);
}

.gap-md {
  gap: var(--space-8);
}

.gap-lg {
  gap: var(--space-12);
}

/* Grid helpers */
.grid {
  display: grid;
  gap: var(--space-8);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-8);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-10);
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* Utility text colors for statuses */
.text-success {
  color: var(--color-success);
}

.text-warning {
  color: var(--color-warning);
}

.text-danger {
  color: var(--color-danger);
}

.text-muted {
  color: var(--color-text-muted);
}

/* Utility background helpers */
.bg-elevated {
  background-color: var(--color-bg-elevated);
}

.bg-muted {
  background-color: var(--color-bg-muted);
}

/* Alignment utilities */
.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

/* Basic spacing margin utilities (select few commonly used) */
.mt-0 {
  margin-top: 0;
}

.mt-sm {
  margin-top: var(--space-4);
}

.mt-md {
  margin-top: var(--space-8);
}

.mt-lg {
  margin-top: var(--space-16);
}

.mb-0 {
  margin-bottom: 0;
}

.mb-sm {
  margin-bottom: var(--space-4);
}

.mb-md {
  margin-bottom: var(--space-8);
}

.mb-lg {
  margin-bottom: var(--space-16);
}

/* =========================================================
   6. FORM ELEMENTS
   ========================================================= */

input,
select,
textarea {
  width: 100%;
  padding: var(--space-6) var(--space-8);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: #070814;
  color: var(--color-text);
  box-shadow: 0 0 0 1px transparent;
  transition: border-color var(--duration-normal) var(--easing-standard),
    box-shadow var(--duration-normal) var(--easing-standard),
    background-color var(--duration-normal) var(--easing-standard);
}

input::placeholder,
textarea::placeholder {
  color: var(--color-text-muted);
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px rgba(75, 139, 255, 0.7), var(--shadow-soft);
  background-color: #050712;
}

input[disabled],
select[disabled],
textarea[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
}

label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

/* =========================================================
   7. BUTTONS
   ========================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  padding: var(--space-6) var(--space-12);
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-weight: 600;
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  background-color: var(--color-primary);
  color: #020307;
  transition:
    background-color var(--duration-fast) var(--easing-standard),
    color var(--duration-fast) var(--easing-standard),
    transform var(--duration-fast) var(--easing-standard),
    box-shadow var(--duration-fast) var(--easing-standard);
}

.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--easing-standard);
  z-index: 0;
}

.btn > * {
  position: relative;
  z-index: 1;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow-primary);
}

.btn:hover::before {
  opacity: 1;
}

.btn:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary-strong);
  outline-offset: 3px;
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-text);
  border-color: var(--color-border-subtle);
}

.btn--secondary::before {
  background-image: linear-gradient(135deg, rgba(75, 139, 255, 0.4), rgba(123, 92, 255, 0.4));
}

.btn--ghost {
  background-color: transparent;
  border-color: transparent;
  color: var(--color-text-muted);
}

.btn--danger {
  background-color: var(--color-danger);
  color: #050308;
}

.btn[disabled],
.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

/* Icon-only round button */
.btn-icon {
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border-radius: 999px;
}

/* =========================================================
   8. CARDS & ELEVATED BLOCKS
   ========================================================= */

.card {
  position: relative;
  border-radius: var(--radius-lg);
  padding: var(--space-12);
  background: radial-gradient(circle at top left, rgba(75, 139, 255, 0.12), transparent 55%),
    radial-gradient(circle at bottom right, rgba(123, 92, 255, 0.16), transparent 60%),
    var(--color-bg-elevated);
  border: 1px solid rgba(255, 255, 255, 0.02);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transition: transform var(--duration-normal) var(--easing-standard),
    box-shadow var(--duration-normal) var(--easing-standard),
    border-color var(--duration-normal) var(--easing-standard);
}

.card::before {
  content: "";
  position: absolute;
  inset: -1px;
  background-image: var(--gradient-card-border);
  opacity: 0;
  z-index: 0;
  pointer-events: none;
}

.card > * {
  position: relative;
  z-index: 1;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-strong);
  border-color: rgba(75, 139, 255, 0.45);
}

.card:hover::before {
  opacity: 0.25;
}

.card--compact {
  padding: var(--space-8);
}

.card-header {
  margin-bottom: var(--space-6);
}

.card-title {
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.card-meta {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Product tiles (for gaming gear listings) */
.product-tile {
  cursor: pointer;
}

.product-tile:hover .product-tile__image {
  transform: translateY(-3px) scale(1.02);
}

.product-tile__image-wrap {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: #05060d;
}

.product-tile__image {
  transition: transform var(--duration-normal) var(--easing-standard);
}

.product-tile__badge {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(32, 245, 255, 0.16);
  color: #e9fcff;
  border: 1px solid rgba(32, 245, 255, 0.5);
}

/* =========================================================
   9. MISC GAMER-CENTRIC DETAILS
   ========================================================= */

/* Subtle neon border for key highlight blocks */
.neon-border {
  position: relative;
  border-radius: var(--radius-md);
  padding: var(--space-8);
  background-color: var(--color-bg-elevated);
}

.neon-border::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: var(--gradient-primary);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* Tag / pill for categories, platforms, etc. */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-subtle);
  background-color: rgba(10, 12, 24, 0.92);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.badge--primary {
  border-color: rgba(75, 139, 255, 0.7);
  background-color: rgba(75, 139, 255, 0.1);
  color: #e5efff;
}

.badge--success {
  border-color: rgba(61, 214, 140, 0.7);
  background-color: rgba(61, 214, 140, 0.1);
  color: #e8fff4;
}