/* === VARIABLES.CSS === */
/* assets/css/variables.css */
/* НАЗНАЧЕНИЕ: CSS custom properties для 4 тем */
/* РАЗМЕР: ~220 строк */

/* --- COMBINED (Default) --- */
/* Gradient mesh, glow borders, smooth shadows */
:root {
    /* Цвета */
    --bg-primary: hsl(225, 25%, 6%);
    --bg-secondary: hsl(225, 20%, 9%);
    --bg-card: hsl(225, 20%, 11%);
    --bg-card-hover: hsl(225, 20%, 14%);
    --text-primary: hsl(0, 0%, 96%);
    --text-secondary: hsl(0, 0%, 75%);
    --text-muted: hsl(0, 0%, 55%);
    --color-accent: hsl(217, 91%, 60%);
    --color-accent-hover: hsl(217, 91%, 70%);
    --color-accent-subtle: hsla(217, 91%, 60%, 0.1);
    --color-secondary: hsl(262, 65%, 65%);
    --color-success: hsl(152, 69%, 40%);
    --color-danger: hsl(0, 84%, 60%);
    --color-warning: hsl(38, 92%, 50%);
    --border-color: hsl(225, 15%, 18%);

    /* Формы */
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    --border-radius-pill: 9999px;

    /* Тени */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px hsla(217, 91%, 60%, 0.15);

    /* Градиенты */
    --gradient-primary: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
    --gradient-card: linear-gradient(135deg, var(--bg-card) 0%, hsla(217, 91%, 60%, 0.05) 100%);
    --gradient-mesh:
        radial-gradient(ellipse at 20% 50%, hsla(217, 91%, 60%, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, hsla(262, 65%, 65%, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 80%, hsla(152, 69%, 40%, 0.04) 0%, transparent 50%);

    /* Типографика */
    --font-display: 'JetBrains Mono', monospace;
    --font-body: 'DM Sans', sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-xs: 12px;
    --font-size-h1: clamp(2.5rem, 5vw, 3.75rem);
    --font-size-h2: clamp(1.75rem, 3.5vw, 2.5rem);
    --font-size-h3: clamp(1.25rem, 2.5vw, 1.75rem);
    --font-size-lead: clamp(1.1rem, 2vw, 1.25rem);
    --line-height-body: 1.7;
    --line-height-heading: 1.15;

    /* Spacing */
    --section-padding: clamp(60px, 8vw, 100px) 0;
    --container-width: 1200px;
    --container-padding: 0 clamp(16px, 4vw, 40px);
    --gap-xs: 4px;
    --gap-sm: 8px;
    --gap-md: 16px;
    --gap-lg: 24px;
    --gap-xl: 48px;
    --gap-2xl: 80px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
}

/* --- MINIMAL --- */
/* Whitespace, thin lines, monochrome + 1 accent */
body.theme-minimal {
    --bg-primary: hsl(0, 0%, 100%);
    --bg-secondary: hsl(0, 0%, 97%);
    --bg-card: hsl(0, 0%, 100%);
    --bg-card-hover: hsl(0, 0%, 95%);
    --text-primary: hsl(0, 0%, 8%);
    --text-secondary: hsl(0, 0%, 35%);
    --text-muted: hsl(0, 0%, 55%);
    --color-accent: hsl(0, 0%, 0%);
    --color-accent-hover: hsl(0, 0%, 20%);
    --color-accent-subtle: hsla(0, 0%, 0%, 0.04);
    --color-secondary: hsl(217, 91%, 55%);
    --color-success: hsl(152, 69%, 35%);
    --color-danger: hsl(0, 84%, 55%);
    --border-color: hsl(0, 0%, 88%);
    --border-radius: 4px;
    --border-radius-sm: 2px;
    --border-radius-lg: 6px;
    --border-radius-pill: 9999px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-glow: none;
    --gradient-primary: none;
    --gradient-card: none;
    --gradient-mesh: none;
    --font-display: 'IBM Plex Mono', monospace;
    --font-body: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --font-size-h1: clamp(2rem, 4vw, 3rem);
}

/* --- BRUTALIST --- */
/* Bold contrasts, raw borders, uppercase, visible grid */
body.theme-brutalist {
    --bg-primary: hsl(60, 10%, 95%);
    --bg-secondary: hsl(60, 5%, 90%);
    --bg-card: hsl(0, 0%, 100%);
    --bg-card-hover: hsl(60, 5%, 92%);
    --text-primary: hsl(0, 0%, 0%);
    --text-secondary: hsl(0, 0%, 20%);
    --text-muted: hsl(0, 0%, 40%);
    --color-accent: hsl(0, 100%, 50%);
    --color-accent-hover: hsl(0, 100%, 40%);
    --color-accent-subtle: hsla(0, 100%, 50%, 0.08);
    --color-secondary: hsl(240, 100%, 50%);
    --color-success: hsl(120, 100%, 30%);
    --color-danger: hsl(0, 100%, 40%);
    --border-color: hsl(0, 0%, 0%);
    --border-radius: 0px;
    --border-radius-sm: 0px;
    --border-radius-lg: 0px;
    --border-radius-pill: 0px;
    --shadow-sm: 4px 4px 0 hsl(0, 0%, 0%);
    --shadow-md: 6px 6px 0 hsl(0, 0%, 0%);
    --shadow-lg: 8px 8px 0 hsl(0, 0%, 0%);
    --shadow-glow: none;
    --gradient-primary: none;
    --gradient-card: none;
    --gradient-mesh: none;
    --font-display: 'Archivo Black', Impact, sans-serif;
    --font-body: 'Roboto Mono', monospace;
    --font-size-h1: clamp(2.5rem, 6vw, 4.5rem);
    --line-height-heading: 0.95;
}

/* --- INDUSTRIAL --- */
/* Dark + green/orange, dashboard-like, terminal aesthetics */
body.theme-industrial {
    --bg-primary: hsl(200, 10%, 6%);
    --bg-secondary: hsl(200, 8%, 10%);
    --bg-card: hsl(200, 8%, 12%);
    --bg-card-hover: hsl(200, 8%, 15%);
    --text-primary: hsl(80, 100%, 75%);
    --text-secondary: hsl(0, 0%, 65%);
    --text-muted: hsl(0, 0%, 45%);
    --color-accent: hsl(80, 100%, 50%);
    --color-accent-hover: hsl(80, 100%, 60%);
    --color-accent-subtle: hsla(80, 100%, 50%, 0.08);
    --color-secondary: hsl(30, 100%, 55%);
    --color-success: hsl(80, 100%, 50%);
    --color-danger: hsl(0, 80%, 55%);
    --color-warning: hsl(30, 100%, 55%);
    --border-color: hsl(80, 40%, 20%);
    --border-radius: 2px;
    --border-radius-sm: 1px;
    --border-radius-lg: 4px;
    --border-radius-pill: 2px;
    --shadow-sm: 0 0 8px hsla(80, 100%, 50%, 0.08);
    --shadow-md: 0 0 16px hsla(80, 100%, 50%, 0.12);
    --shadow-lg: 0 0 24px hsla(80, 100%, 50%, 0.16);
    --shadow-glow: 0 0 30px hsla(80, 100%, 50%, 0.1);
    --gradient-primary: linear-gradient(135deg, hsl(80, 100%, 50%), hsl(30, 100%, 55%));
    --gradient-card: linear-gradient(135deg, var(--bg-card) 0%, hsla(80, 100%, 50%, 0.03) 100%);
    --gradient-mesh:
        radial-gradient(ellipse at 30% 50%, hsla(80, 100%, 50%, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, hsla(30, 100%, 55%, 0.03) 0%, transparent 50%);
    --font-display: 'JetBrains Mono', monospace;
    --font-body: 'Exo 2', sans-serif;
    --font-size-h1: clamp(2rem, 4.5vw, 3.25rem);
}