/* ============================================================
   LIFESAF DESIGN SYSTEM — design-system.css
   Professional Industrial Safety Equipment UI Kit
   ============================================================ */

:root {
  /* --- Color Palette --- */
  --color-primary:         #337AB7;
  --color-primary-darker:  #2E7DCD;

  /* Accent Oranges */
  --color-accent:          #FE7500;
  --color-accent-muted:    #F19735;
  --color-accent-dark:     #E06B00;

  /* Text Scale */
  --color-text-primary:    #000000;
  --color-text-secondary:  #666666;
  --color-text-muted:      #999999;
  --color-white:           #FFFFFF;

  /* Surfaces & Borders */
  --color-surface-light:   #F1F1F1;
  --color-border-subtle:   #E7E7E7;

  /* Semantic */
  --color-navy-deep:       #183544;
  --color-warning:         #F19735;
  --color-visited:         #9B59B6;

  /* --- Typography --- */
  --font-primary:   'HelveticaNeue', Helvetica, Arial, sans-serif;
  --font-secondary: 'Roboto', 'HelveticaNeue', Helvetica, sans-serif;

  /* Font Sizes */
  --fs-xs:      11px;
  --fs-sm:      12px;
  --fs-base:    14px;
  --fs-md:      17px;
  --fs-lg:      18px;
  --fs-xl:      19px;

  /* Font Weights */
  --fw-light:    300;
  --fw-regular:  400;
  --fw-medium:   500;
  --fw-bold:     700;

  /* Line Heights */
  --lh-display:  20.9px;
  --lh-h1:       15.4px;
  --lh-h2:       19.8px;
  --lh-h3:       18.2px;
  --lh-body:     20px;
  --lh-sm:       17.14px;
  --lh-link:     15.4px;
  --lh-nav:      24.29px;

  /* --- Spacing Scale (4px base unit) --- */
  --space-1:   4px;
  --space-2:   8px;
  --space-3:   12px;
  --space-4:   16px;
  --space-5:   20px;
  --space-btn: 5px;

  /* --- Border Radius Scale --- */
  --radius-0:      0px;
  --radius-badge:  3px;
  --radius-card:   4px;
  --radius-modal:  6px;
  --radius-input:  20px;

  /* --- Elevation / Shadows --- */
  --shadow-flat:      none;
  --shadow-raised:    rgba(0, 0, 0, 0.176) 0px 6px 12px 0px;
  --shadow-elevated:  rgba(0, 0, 0, 0.25) 0px 8px 16px 0px;
  --shadow-modal:     rgba(0, 0, 0, 0.5) 0px 5px 15px 0px;
  --shadow-focus-primary: 0px 0px 0px 2px rgba(51, 122, 183, 0.2);
  --shadow-focus-strong:  0px 0px 0px 3px rgba(51, 122, 183, 0.15);
  --shadow-btn-active:    inset 0px 2px 4px rgba(0, 0, 0, 0.2);

  /* --- Transitions --- */
  --transition-fast:   0.15s ease;
  --transition-base:   0.25s ease;
  --transition-slow:   0.35s ease;

  /* --- Layout --- */
  --container-max: 1200px;
  --gutter:        16px;
}

/* ============================================================
   LIFESAF CORE ELEMENT CLASSES
   ============================================================ */

/* Standard Body Link */
.link, a.link {
  color: var(--color-primary);
  font-size: var(--fs-base);
  font-weight: var(--fw-medium);
  line-height: var(--lh-link);
  text-decoration: none;
  background: transparent;
  transition: color var(--transition-fast), text-decoration var(--transition-fast);
  outline-offset: 2px;
}
.link:hover, a.link:hover {
  color: var(--color-primary-darker);
  text-decoration: underline;
}
.link:visited {
  color: var(--color-visited);
}

/* Prominent Link (White) */
.link-prominent, a.link-prominent {
  color: var(--color-white);
  font-size: var(--fs-md);
  font-weight: var(--fw-bold);
  line-height: var(--lh-nav);
  text-decoration: none;
  background: transparent;
  transition: color var(--transition-fast);
}
.link-prominent:hover, a.link-prominent:hover {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: underline;
}

/* Footer Link */
.link-footer, a.link-footer {
  color: var(--color-white);
  font-size: var(--fs-sm);
  font-weight: var(--fw-regular);
  line-height: var(--lh-sm);
  text-decoration: none;
  background: transparent;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
  display: block;
  margin-bottom: 8px;
}
.link-footer:hover, a.link-footer:hover {
  color: var(--color-accent);
  padding-left: 6px;
}

/* Primary Button (Orange CTA) */
.btn-primary-ls {
  background: var(--color-accent);
  color: var(--color-white) !important;
  padding: 8px 16px;
  font-size: var(--fs-base);
  font-weight: var(--fw-medium);
  border-radius: var(--radius-card);
  border: 0 none;
  box-shadow: var(--shadow-flat);
  transition: background var(--transition-fast), box-shadow var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-primary-ls:hover {
  background: var(--color-accent-dark);
}
.btn-primary-ls:active {
  box-shadow: var(--shadow-btn-active);
}

/* Secondary Button (Ghost / White) */
.btn-secondary-ls {
  background: transparent;
  color: var(--color-text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius-card);
  border: 1px solid var(--color-border-subtle);
  transition: background var(--transition-fast), color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-secondary-ls:hover {
  background: rgba(254, 117, 0, 0.08);
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* Category Badges */
.badge-ls {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: var(--fs-xs);
  font-weight: 600;
  padding: 4px 8px;
  border-radius: var(--radius-badge);
  line-height: 1.2;
}
.badge-ls-blue {
  background: var(--color-primary);
}

/* Product Cards */
.card-product {
  background: var(--color-white);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-card);
  padding: var(--space-3);
  box-shadow: var(--shadow-raised);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.card-product:hover {
  box-shadow: var(--shadow-elevated);
  transform: translateY(-4px);
}

.card-section-header {
  background: var(--color-accent);
  color: var(--color-white);
  padding: 12px 16px;
  border-radius: var(--radius-card);
  font-size: var(--fs-base);
  font-weight: var(--fw-medium);
  margin-bottom: var(--space-5);
}