/* ==========================================================================
   Base — Industrial Dark Theme CSS custom properties + minimal reset
   ========================================================================== */

:root {
    /* Colors - Industrial Dark Theme */
    --nc-color-primary: #3DA8CC;
    --nc-color-primary-hover: #2d8db3;
    --nc-color-primary-light: #5bc2e7;
    --nc-color-secondary: #00D4FF;
    --nc-color-secondary-hover: #00b8e6;
    --nc-color-accent: #00ff88;
    --nc-color-accent-hover: #00e67a;

    --nc-color-surface: #0d0d0d;
    --nc-color-surface-alt: #1e1e1e;
    --nc-color-surface-dark: #000000;
    --nc-color-border: #2a2a2a;
    --nc-color-border-dark: #3d3d3d;

    --nc-color-text: #e8e8e8;
    --nc-color-text-muted: #a0a0a0;
    --nc-color-text-light: #707070;
    --nc-color-text-inverse: #0d0d0d;

    --nc-color-success: #00ff88;
    --nc-color-warning: #ffa500;
    --nc-color-error: #ff4444;
    --nc-color-info: #3DA8CC;

    /* Gradients - Industrial Theme */
    --nc-gradient-primary: linear-gradient(135deg, #3DA8CC 0%, #00D4FF 100%);
    --nc-gradient-hero: linear-gradient(135deg, rgba(0, 13, 26, 0.95) 0%, rgba(13, 13, 13, 0.85) 100%);
    --nc-gradient-overlay: linear-gradient(180deg, rgba(13, 13, 13, 0) 0%, rgba(13, 13, 13, 0.8) 100%);
    --nc-gradient-accent: linear-gradient(135deg, #00D4FF 0%, #00ff88 100%);

    /* Metallic effect */
    --nc-gradient-metal: linear-gradient(135deg, #2a2a2a 0%, #4d4d4d 50%, #2a2a2a 100%);

    /* Typography */
    --nc-font-heading: 'Rajdhani', 'Arial Black', sans-serif;
    --nc-font-body: 'Inter', system-ui, -apple-system, sans-serif;
    --nc-font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --nc-text-xs: 0.75rem;
    --nc-text-sm: 0.875rem;
    --nc-text-base: 1rem;
    --nc-text-lg: 1.125rem;
    --nc-text-xl: 1.25rem;
    --nc-text-2xl: 1.5rem;
    --nc-text-3xl: 1.875rem;
    --nc-text-4xl: 2.25rem;
    --nc-text-5xl: clamp(2.5rem, 5vw, 4rem);
    --nc-text-6xl: clamp(3rem, 7vw, 5.5rem);

    --nc-leading-tight: 1.1;
    --nc-leading-normal: 1.6;
    --nc-leading-relaxed: 1.8;

    --nc-weight-normal: 400;
    --nc-weight-medium: 500;
    --nc-weight-semibold: 600;
    --nc-weight-bold: 700;

    /* Spacing */
    --nc-space-1: 0.25rem;
    --nc-space-2: 0.5rem;
    --nc-space-3: 0.75rem;
    --nc-space-4: 1rem;
    --nc-space-5: 1.25rem;
    --nc-space-6: 1.5rem;
    --nc-space-8: 2rem;
    --nc-space-10: 2.5rem;
    --nc-space-12: 3rem;
    --nc-space-16: 4rem;
    --nc-space-20: 5rem;
    --nc-space-24: 6rem;

    /* Layout */
    --nc-container-width: 1200px;
    --nc-container-wide: 1400px;
    --nc-container-narrow: 800px;
    --nc-container-padding: var(--nc-space-6);

    /* Borders */
    --nc-radius-sm: 0.25rem;
    --nc-radius-md: 0.5rem;
    --nc-radius-lg: 0.75rem;
    --nc-radius-xl: 1rem;
    --nc-radius-full: 9999px;

    /* Shadows - Enhanced for dark theme */
    --nc-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --nc-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
    --nc-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.6), 0 4px 6px -4px rgba(0, 0, 0, 0.4);
    --nc-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.7), 0 8px 10px -6px rgba(0, 0, 0, 0.5);

    /* Glow effects for industrial theme */
    --nc-glow-primary: 0 0 20px rgba(61, 168, 204, 0.4);
    --nc-glow-accent: 0 0 30px rgba(0, 255, 136, 0.3);
    --nc-glow-secondary: 0 0 25px rgba(0, 212, 255, 0.4);

    /* Transitions */
    --nc-transition-fast: 150ms ease;
    --nc-transition-base: 250ms ease;
    --nc-transition-slow: 400ms ease;
    --nc-transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Z-index scale */
    --nc-z-dropdown: 100;
    --nc-z-sticky: 200;
    --nc-z-drawer: 300;
    --nc-z-overlay: 400;
    --nc-z-modal: 500;
    --nc-z-toast: 600;
}

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

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

body {
    font-family: var(--nc-font-body);
    font-size: var(--nc-text-base);
    line-height: var(--nc-leading-normal);
    color: var(--nc-color-text);
    background-color: var(--nc-color-surface);
    background-image:
        radial-gradient(circle at 25% 25%, rgba(61, 168, 204, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(0, 212, 255, 0.03) 0%, transparent 50%);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--nc-font-heading);
    font-weight: var(--nc-weight-bold);
    line-height: var(--nc-leading-tight);
    color: var(--nc-color-text);
    letter-spacing: -0.02em;
}

h1 { font-size: var(--nc-text-6xl); }
h2 { font-size: var(--nc-text-5xl); }
h3 { font-size: var(--nc-text-3xl); }
h4 { font-size: var(--nc-text-2xl); }
h5 { font-size: var(--nc-text-xl); }
h6 { font-size: var(--nc-text-lg); }

p {
    margin-bottom: var(--nc-space-4);
}

ul, ol {
    padding-left: var(--nc-space-6);
}

/* Content area defaults */
.nc-content img {
    border-radius: var(--nc-radius-md);
    margin: var(--nc-space-6) 0;
}

.nc-content a {
    text-decoration: underline;
    text-underline-offset: 2px;
    color: var(--nc-color-primary-light);
}

.nc-content a:hover {
    color: var(--nc-color-secondary);
}

.nc-content blockquote {
    border-left: 4px solid var(--nc-color-primary);
    padding: var(--nc-space-4) var(--nc-space-6);
    margin: var(--nc-space-6) 0;
    background: var(--nc-color-surface-alt);
    border-radius: 0 var(--nc-radius-md) var(--nc-radius-md) 0;
}

.nc-content pre {
    background: var(--nc-color-surface-alt);
    color: var(--nc-color-text);
    padding: var(--nc-space-4);
    border-radius: var(--nc-radius-md);
    overflow-x: auto;
    font-family: var(--nc-font-mono);
    font-size: var(--nc-text-sm);
    margin: var(--nc-space-6) 0;
    border: 1px solid var(--nc-color-border);
}

.nc-content code {
    background: var(--nc-color-surface-alt);
    padding: 0.125em 0.375em;
    border-radius: var(--nc-radius-sm);
    font-family: var(--nc-font-mono);
    font-size: 0.9em;
    color: var(--nc-color-secondary);
}

.nc-content pre code {
    background: none;
    padding: 0;
    color: var(--nc-color-text);
}

.nc-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--nc-space-6) 0;
}

.nc-content th,
.nc-content td {
    padding: var(--nc-space-3) var(--nc-space-4);
    border-bottom: 1px solid var(--nc-color-border);
    text-align: left;
}

.nc-content th {
    font-weight: var(--nc-weight-semibold);
    background: var(--nc-color-surface-alt);
    color: var(--nc-color-primary);
}

/* Industrial grid pattern overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(0deg, transparent 24%, rgba(61, 168, 204, 0.02) 25%, rgba(61, 168, 204, 0.02) 26%, transparent 27%, transparent 74%, rgba(61, 168, 204, 0.02) 75%, rgba(61, 168, 204, 0.02) 76%, transparent 77%, transparent),
        linear-gradient(90deg, transparent 24%, rgba(61, 168, 204, 0.02) 25%, rgba(61, 168, 204, 0.02) 26%, transparent 27%, transparent 74%, rgba(61, 168, 204, 0.02) 75%, rgba(61, 168, 204, 0.02) 76%, transparent 77%, transparent);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 1;
    opacity: 0.3;
}