/* ==========================================================================
   YourClean — Modern Design System v3.0
   Elegant minimalism with warm accents
   ========================================================================== */

:root {
    /* ========== COLOR PALETTE — Professional Cleaning Theme ========== */
    /* Primary colors — Dark Blue (основной) */
    --color-primary: #1E3A8A;
    --color-primary-light: #3B82F6;
    --color-primary-dark: #1E40AF;
    --color-primary-50: rgba(30, 58, 138, 0.05);
    --color-primary-100: rgba(30, 58, 138, 0.1);
    --color-primary-200: rgba(30, 58, 138, 0.2);
    --color-primary-300: rgba(30, 58, 138, 0.3);

    /* Accent — Turquoise/Бирюзовый (кнопки, иконки) */
    --color-accent: #14B8A6;
    --color-accent-light: #2DD4BF;
    --color-accent-dark: #0D9488;
    --color-accent-50: rgba(20, 184, 166, 0.05);
    --color-accent-100: rgba(20, 184, 166, 0.1);
    
    /* Emerald/Изумрудный (эко-плашки, преимущества) */
    --color-emerald: #10B981;
    --color-emerald-light: #34D399;
    --color-emerald-dark: #059669;
    --color-emerald-50: rgba(16, 185, 129, 0.05);
    --color-emerald-100: rgba(16, 185, 129, 0.1);
    
    /* Orange/Оранжевый (скидки, важные уведомления) */
    --color-orange: #F97316;
    --color-orange-light: #FB923C;
    --color-orange-dark: #EA580C;
    --color-orange-50: rgba(249, 115, 22, 0.05);
    --color-orange-100: rgba(249, 115, 22, 0.1);

    /* Neutral palette — Clean & Modern */
    --color-bg: #FFFFFF;
    --color-bg-alt: #F5F7FA;
    --color-surface: #FFFFFF;
    --color-card-bg: #F8F9FA;
    --color-text: #1E293B;
    --color-text-secondary: #475569;
    --color-text-muted: #94A3B8;
    --color-border: #E2E8F0;
    --color-border-light: #F1F5F9;

    /* Status colors */
    --color-success: #10B981;
    --color-success-light: #D1FAE5;
    --color-error: #EF4444;
    --color-error-light: #FEE2E2;
    --color-warning: #F59E0B;
    --color-warning-light: #FEF3C7;

    /* ========== MODERN GRADIENTS ========== */
    --gradient-hero: linear-gradient(135deg, #1E3A8A 0%, #1E40AF 50%, #3B82F6 100%);
    --gradient-hero-alt: linear-gradient(135deg, #1E3A8A 0%, #2563EB 50%, #14B8A6 100%);
    --gradient-cta: linear-gradient(135deg, #14B8A6 0%, #2DD4BF 100%);
    --gradient-accent: linear-gradient(135deg, #14B8A6 0%, #2DD4BF 100%);
    --gradient-emerald: linear-gradient(135deg, #10B981 0%, #34D399 100%);
    --gradient-orange: linear-gradient(135deg, #F97316 0%, #FB923C 100%);
    --gradient-card: linear-gradient(180deg, #FFFFFF 0%, #F8F9FA 100%);
    --gradient-blue: linear-gradient(135deg, #1E3A8A 0%, #3B82F6 100%);
    
    /* Subtle mesh background */
    --gradient-mesh:
        radial-gradient(at 20% 30%, rgba(30, 58, 138, 0.06) 0px, transparent 50%),
        radial-gradient(at 80% 70%, rgba(20, 184, 166, 0.06) 0px, transparent 50%),
        radial-gradient(at 50% 50%, rgba(16, 185, 129, 0.04) 0px, transparent 50%);

    /* ========== TYPOGRAPHY ========== */
    --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Font weights */
    --font-regular: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;

    /* Font sizes — fluid responsive */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8rem);
    --text-sm: clamp(0.8125rem, 0.77rem + 0.2vw, 0.875rem);
    --text-base: clamp(0.9375rem, 0.9rem + 0.2vw, 1rem);
    --text-lg: clamp(1.0625rem, 1rem + 0.3vw, 1.125rem);
    --text-xl: clamp(1.1875rem, 1.1rem + 0.4vw, 1.25rem);
    --text-2xl: clamp(1.4rem, 1.3rem + 0.5vw, 1.5rem);
    --text-3xl: clamp(1.75rem, 1.5rem + 1vw, 1.875rem);
    --text-4xl: clamp(2rem, 1.7rem + 1.5vw, 2.25rem);
    --text-5xl: clamp(2.5rem, 2rem + 2vw, 3rem);
    --text-6xl: clamp(3rem, 2.5rem + 2.5vw, 3.75rem);

    /* Line heights */
    --leading-none: 1;
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    --leading-loose: 1.75;

    /* ========== SPACING — 4px 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 */

    /* ========== MODERN SHADOWS ========== */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.03);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06), 0 2px 4px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.08), 0 4px 8px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.06);
    --shadow-2xl: 0 32px 64px rgba(0, 0, 0, 0.16), 0 12px 24px rgba(0, 0, 0, 0.08);

    /* Colored shadows */
    --shadow-primary-sm: 0 4px 12px rgba(30, 58, 138, 0.2);
    --shadow-primary-md: 0 8px 24px rgba(30, 58, 138, 0.25);
    --shadow-primary-lg: 0 16px 40px rgba(30, 58, 138, 0.3);
    --shadow-accent-sm: 0 4px 12px rgba(20, 184, 166, 0.25);
    --shadow-accent-md: 0 8px 24px rgba(20, 184, 166, 0.3);
    --shadow-emerald-sm: 0 4px 12px rgba(16, 185, 129, 0.25);
    --shadow-emerald-md: 0 8px 24px rgba(16, 185, 129, 0.3);
    --shadow-orange-sm: 0 4px 12px rgba(249, 115, 22, 0.25);
    --shadow-orange-md: 0 8px 24px rgba(249, 115, 22, 0.3);

    /* ========== BORDER RADIUS ========== */
    --radius-sm: 0.375rem;   /* 6px */
    --radius-md: 0.5rem;     /* 8px */
    --radius-lg: 0.75rem;    /* 12px */
    --radius-xl: 1rem;      /* 16px */
    --radius-2xl: 1.25rem;   /* 20px */
    --radius-3xl: 1.5rem;    /* 24px */
    --radius-full: 9999px;

    /* ========== TRANSITIONS ========== */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
    --transition-bounce: 600ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

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

    /* ========== LAYOUT ========== */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1200px;
    --container-2xl: 1400px;
    --header-height: 72px;
    --header-height-scrolled: 64px;
}

/* Override system dark mode – site stays bright */
@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: light;
        --color-bg: #FFFFFF;
        --color-bg-alt: #F5F7FA;
        --color-surface: #FFFFFF;
        --color-card-bg: #F8F9FA;
        --color-text: #1E293B;
        --color-text-secondary: #475569;
        --color-text-muted: #94A3B8;
        --color-border: #E2E8F0;
        --color-border-light: #F1F5F9;
    }
}