/* ==========================================================================
   KSD Grip - Design System (LOK Grips Specification Integration)
   Font Family: Mulish / Muli, sans-serif
   Color Tokens: 
     - surface.base: #000000
     - text.secondary: #202020
     - text.tertiary: #FFFFFF
     - surface.muted (Accent Crimson Red): #d51f40
     - accent.hover: #b01531
   Typography Scale: 10px, 12px, 13px, 14px, 18px, 26px, 28px
   Radius Tokens: 4px (xs), 7px (sm), 80px (md)
   Shadow Tokens: 
     - shadow.1: rgba(0, 0, 0, 0.5) 0px 3px 24px 0px
     - shadow.2: rgba(0, 0, 0, 0.2) 0px 3px 3px 0px
   ========================================================================== */

:root {
    --lok-surface-base: #000000;
    --lok-text-secondary: #202020;
    --lok-text-tertiary: #FFFFFF;
    --lok-accent-red: #d51f40;
    --lok-accent-hover: #b01531;
    --lok-surface-bg: #FFFFFF;
    --lok-surface-card: #F9F9F9;
    --lok-border: #E5E5E5;
    
    --font-family-primary: 'Mulish', 'Muli', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 14px;
    --font-line-height: 21px;
    
    --radius-xs: 4px;
    --radius-sm: 7px;
    --radius-md: 80px;
    
    --shadow-1: rgba(0, 0, 0, 0.5) 0px 3px 24px 0px;
    --shadow-2: rgba(0, 0, 0, 0.2) 0px 3px 3px 0px;
}

body {
    background-color: var(--lok-surface-bg);
    color: var(--lok-text-secondary);
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    font-weight: 400;
    line-height: var(--font-line-height);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6, .font-heading {
    font-family: var(--font-family-primary);
    font-weight: 800;
    letter-spacing: -0.02em;
}

/* Micro-Radius & Radius Tokens */
.btn-ksd, .card-ksd, .input-ksd, select, input, textarea {
    border-radius: var(--radius-xs) !important;
}

.badge-pill, .btn-pill {
    border-radius: var(--radius-md) !important;
}

/* Bold KSD GRIP Logotype */
.ksd-logo-text {
    font-family: var(--font-family-primary);
    font-weight: 900;
    letter-spacing: -0.04em;
}

/* Signature Crimson Red Primary Button (#d51f40) */
.btn-ksd-primary, .btn-ksd-red {
    background-color: var(--lok-accent-red);
    color: #FFFFFF;
    border: 1px solid var(--lok-accent-red);
    padding: 0.65rem 1.4rem;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    transition: all 0.15s ease-in-out;
}

.btn-ksd-primary:hover, .btn-ksd-primary:focus-visible, .btn-ksd-red:hover {
    background-color: var(--lok-accent-hover);
    border-color: var(--lok-accent-hover);
    color: #FFFFFF;
    box-shadow: var(--shadow-2);
}

.btn-ksd-dark {
    background-color: var(--lok-surface-base);
    color: #FFFFFF;
    border: 1px solid var(--lok-surface-base);
    padding: 0.65rem 1.4rem;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    transition: all 0.15s ease-in-out;
}

.btn-ksd-dark:hover {
    background-color: var(--lok-accent-red);
    border-color: var(--lok-accent-red);
}

.btn-ksd-outline {
    background-color: transparent;
    color: var(--lok-text-secondary);
    border: 1px solid var(--lok-border);
    padding: 0.65rem 1.4rem;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    transition: all 0.15s ease-in-out;
}

.btn-ksd-outline:hover {
    background-color: var(--lok-surface-base);
    border-color: var(--lok-surface-base);
    color: #FFFFFF;
}

/* Product & Brand Cards */
.card-ksd {
    background-color: #FFFFFF;
    border: 1px solid var(--lok-border);
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.card-ksd:hover {
    border-color: var(--lok-accent-red);
    box-shadow: var(--shadow-2);
}

/* Navigation Links */
.nav-link {
    position: relative;
    font-weight: 700;
    font-size: 14px;
    color: var(--lok-text-secondary);
    transition: color 0.15s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--lok-accent-red);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--lok-accent-red);
}

/* Input Fields */
.input-ksd {
    background-color: #FFFFFF;
    border: 1px solid var(--lok-border);
    color: var(--lok-text-secondary);
    padding: 0.65rem 0.9rem;
    font-size: 14px;
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.input-ksd:focus, .input-ksd:focus-visible {
    border-color: var(--lok-accent-red);
    box-shadow: 0 0 0 2px rgba(213, 31, 64, 0.2);
}

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