/*
Theme Name: DIY Beyond 3D
Theme URI: https://diybeyond3d.com
Author: DIY Beyond 3D
Author URI: https://diybeyond3d.com
Description: Premium WordPress theme for selling 3D printable models. Built for flight sim enthusiasts, retro computing lovers, and 3D printing hobbyists. Features WooCommerce integration, 3D model previews, and a bold industrial aesthetic.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.4
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: diy3d
Tags: e-commerce, woocommerce, dark-mode, custom-logo, custom-menu, featured-images, threaded-comments

DIY Beyond 3D WordPress Theme
Copyright 2024 DIY Beyond 3D
*/

/* ==========================================================================
   Design System - CSS Custom Properties
   ========================================================================== */

:root {
  /* ─────────────────────────────────────────────────────────────────────────
     Color Palette: Industrial Precision
     ───────────────────────────────────────────────────────────────────────── */

  /* Primary - Signature Orange (from Printables brand) */
  --color-primary-50: #fff7ed;
  --color-primary-100: #ffedd5;
  --color-primary-200: #fed7aa;
  --color-primary-300: #fdba74;
  --color-primary-400: #fb923c;
  --color-primary-500: #f97316;
  --color-primary-600: #ea580c;
  --color-primary-700: #c2410c;
  --color-primary-800: #9a3412;
  --color-primary-900: #7c2d12;

  /* Neutral - Blue-tinted Darks (technical drawing aesthetic) */
  --color-neutral-50: #f8fafc;
  --color-neutral-100: #f1f5f9;
  --color-neutral-200: #e2e8f0;
  --color-neutral-300: #cbd5e1;
  --color-neutral-400: #94a3b8;
  --color-neutral-500: #64748b;
  --color-neutral-600: #475569;
  --color-neutral-700: #334155;
  --color-neutral-800: #1e293b;
  --color-neutral-900: #0f172a;
  --color-neutral-950: #020617;

  /* Accent - Cyan (3D software inspired) */
  --color-accent-400: #22d3ee;
  --color-accent-500: #06b6d4;
  --color-accent-600: #0891b2;

  /* Semantic Colors */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: #3b82f6;

  /* Surface Colors */
  --surface-ground: var(--color-neutral-950);
  --surface-card: var(--color-neutral-900);
  --surface-overlay: var(--color-neutral-800);
  --surface-border: var(--color-neutral-700);
  --surface-hover: var(--color-neutral-800);

  /* Text Colors */
  --text-primary: var(--color-neutral-50);
  --text-secondary: var(--color-neutral-400);
  --text-muted: var(--color-neutral-500);
  --text-inverse: var(--color-neutral-950);

  /* ─────────────────────────────────────────────────────────────────────────
     Typography
     ───────────────────────────────────────────────────────────────────────── */

  /* Font Families */
  --font-display: 'Space Mono', 'JetBrains Mono', monospace;
  --font-body: 'Outfit', 'DM Sans', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Font Sizes - Fluid Typography */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
  --text-base: clamp(1rem, 0.925rem + 0.375vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.375rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.625rem);
  --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2.25rem);
  --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 3rem);
  --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 4rem);
  --text-5xl: clamp(3rem, 2rem + 5vw, 6rem);

  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.15;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;

  /* Letter Spacing */
  --tracking-tighter: -0.05em;
  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  --tracking-wider: 0.05em;
  --tracking-widest: 0.1em;

  /* ─────────────────────────────────────────────────────────────────────────
     Spacing System (8px base)
     ───────────────────────────────────────────────────────────────────────── */

  --space-0: 0;
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */
  --space-32: 8rem;     /* 128px */

  /* ─────────────────────────────────────────────────────────────────────────
     Layout
     ───────────────────────────────────────────────────────────────────────── */

  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;

  --gutter: clamp(1rem, 5vw, 2rem);

  /* ─────────────────────────────────────────────────────────────────────────
     Effects
     ───────────────────────────────────────────────────────────────────────── */

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-glow: 0 0 20px rgb(249 115 22 / 0.3);
  --shadow-glow-lg: 0 0 40px rgb(249 115 22 / 0.4);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Z-Index Scale */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background-color: var(--surface-ground);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Technical grid background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--color-neutral-800) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-neutral-800) 1px, transparent 1px);
  background-size: 50px 50px;
  opacity: 0.3;
  pointer-events: none;
  z-index: -1;
}

/* Selection */
::selection {
  background-color: var(--color-primary-500);
  color: var(--text-inverse);
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--text-primary);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
  margin-bottom: var(--space-4);
  color: var(--text-secondary);
}

a {
  color: var(--color-primary-500);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-400);
}

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

code, kbd, samp {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background-color: var(--surface-card);
  padding: 0.125em 0.375em;
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   Layout Components
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container--narrow {
  max-width: var(--container-lg);
}

.container--wide {
  max-width: var(--container-2xl);
}

/* Section spacing */
.section {
  padding-block: var(--space-16);
}

.section--lg {
  padding-block: var(--space-24);
}

/* ==========================================================================
   Button Components
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  padding: var(--space-3) var(--space-6);
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* Primary Button */
.btn--primary {
  background-color: var(--color-primary-500);
  color: var(--text-inverse);
  border-color: var(--color-primary-500);
}

.btn--primary:hover {
  background-color: var(--color-primary-600);
  border-color: var(--color-primary-600);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

/* Secondary Button */
.btn--secondary {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--surface-border);
}

.btn--secondary:hover {
  border-color: var(--color-primary-500);
  color: var(--color-primary-500);
}

/* Ghost Button */
.btn--ghost {
  background-color: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}

.btn--ghost:hover {
  color: var(--color-primary-500);
  background-color: var(--surface-hover);
}

/* Button Sizes */
.btn--sm {
  font-size: var(--text-xs);
  padding: var(--space-2) var(--space-4);
}

.btn--lg {
  font-size: var(--text-base);
  padding: var(--space-4) var(--space-8);
}

/* ==========================================================================
   Card Components
   ========================================================================== */

.card {
  background-color: var(--surface-card);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.card:hover {
  border-color: var(--color-primary-500);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card__image {
  /* Landscape ratio - thinner cards */
  aspect-ratio: 4 / 3;
  overflow: hidden;
  position: relative;
  background-color: var(--color-neutral-800);
}

.card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.card:hover .card__image img {
  transform: scale(1.05);
}

.card__content {
  padding: var(--space-3);
}

@media (min-width: 640px) {
  .card__content {
    padding: var(--space-4);
  }
}

.card__category {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  color: var(--color-primary-500);
  margin-bottom: var(--space-2);
}

.card__title {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}

.card__description {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
}

.card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  border-top: 1px solid var(--surface-border);
}

.card__price {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary-500);
}

.card__price--old {
  font-size: var(--text-sm);
  color: var(--text-muted);
  text-decoration: line-through;
  margin-right: var(--space-2);
}

/* ==========================================================================
   Form Components
   ========================================================================== */

.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--text-primary);
  background-color: var(--surface-card);
  border: 2px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px rgb(249 115 22 / 0.1);
}

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

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* ==========================================================================
   Badge Components
   ========================================================================== */

.badge {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  background-color: var(--surface-overlay);
  color: var(--text-secondary);
}

.badge--primary {
  background-color: var(--color-primary-500);
  color: var(--text-inverse);
}

.badge--success {
  background-color: var(--color-success);
  color: var(--text-inverse);
}

.badge--new {
  background-color: var(--color-accent-500);
  color: var(--text-inverse);
}

/* ==========================================================================
   Product Grid
   ========================================================================== */

.product-grid {
  display: grid;
  /* More compact: 2 columns on mobile */
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
  }
}

@media (min-width: 1024px) {
  .product-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
  }
}

@media (min-width: 1440px) {
  .product-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

/* ==========================================================================
   Utilities
   ========================================================================== */

/* Text alignment */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Text colors */
.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--color-primary-500); }

/* Flex utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Margin utilities */
.mt-auto { margin-top: auto; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }

/* Visibility */
.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;
}

/* ==========================================================================
   Animations
   ========================================================================== */

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.animate-fade-in {
  animation: fadeIn var(--transition-slow) ease-out;
}

.animate-fade-in-up {
  animation: fadeInUp var(--transition-slow) ease-out;
}

/* Staggered animation delays */
.stagger-1 { animation-delay: 100ms; }
.stagger-2 { animation-delay: 200ms; }
.stagger-3 { animation-delay: 300ms; }
.stagger-4 { animation-delay: 400ms; }
.stagger-5 { animation-delay: 500ms; }