/* ============================================================================
   LEANPIVOT DESIGN TOKENS
   Version: 4.0

   Single source of truth for all design tokens.
   All tokens use the --lp-* namespace.

   Loaded globally via base.html — available on every page.
   ============================================================================ */

:root {
    /* ===== COLOR SYSTEM ===== */

    /* Primary: Teal (#26a69a) — the LeanPivot brand color */
    --lp-primary: #26a69a;
    --lp-primary-dark: #00897b;
    --lp-primary-darker: #00695c;
    --lp-primary-light: #4db6ac;
    --lp-primary-lighter: #80cbc4;
    --lp-primary-50: #e0f2f1;
    --lp-primary-100: #b2dfdb;

    /* Brand Blue Scale (marketing, style guide headers) */
    --lp-brand-900: #0C4A6E;
    --lp-brand-800: #075985;
    --lp-brand-700: #0369A1;
    --lp-brand-600: #0284C7;
    --lp-brand-500: #0EA5E9;
    --lp-brand-400: #38BDF8;
    --lp-brand-300: #7DD3FC;
    --lp-brand-200: #BAE6FD;
    --lp-brand-100: #E0F2FE;

    /* Slate / Gray Scale */
    --lp-slate-900: #0F172A;
    --lp-slate-800: #1E293B;
    --lp-slate-700: #334155;
    --lp-slate-600: #475569;
    --lp-slate-500: #64748B;
    --lp-slate-400: #94A3B8;
    --lp-slate-300: #CBD5E1;
    --lp-slate-200: #E2E8F0;
    --lp-slate-100: #F1F5F9;
    --lp-slate-50: #F8FAFC;

    /* Purple Accent */
    --lp-purple-900: #581C87;
    --lp-purple-800: #6B21A8;
    --lp-purple-700: #7E22CE;
    --lp-purple-600: #6D28D9;
    --lp-purple-500: #7C3AED;
    --lp-purple-400: #8B5CF6;
    --lp-purple-300: #A78BFA;
    --lp-purple-200: #C4B5FD;
    --lp-purple-100: #E9D5FF;

    /* Semantic: Success */
    --lp-success-900: #134E4A;
    --lp-success-800: #115E59;
    --lp-success-700: #0F766E;
    --lp-success-600: #0D9488;
    --lp-success-500: #14B8A6;
    --lp-success-400: #2DD4BF;
    --lp-success-300: #5EEAD4;
    --lp-success-200: #99F6E4;
    --lp-success-100: #CCFBF1;

    /* Semantic: Warning */
    --lp-warning-700: #B45309;
    --lp-warning-600: #D97706;
    --lp-warning-500: #F59E0B;
    --lp-warning-400: #FBBF24;
    --lp-warning-300: #FCD34D;
    --lp-warning-bg: #FEF3C7;

    /* Semantic: Danger */
    --lp-danger-700: #B91C1C;
    --lp-danger-600: #DC2626;
    --lp-danger-500: #EF4444;
    --lp-danger-400: #F87171;
    --lp-danger-300: #FCA5A5;
    --lp-danger-bg: #FEE2E2;

    /* Semantic: Info */
    --lp-info: #4299e1;
    --lp-info-dark: #3182ce;
    --lp-info-light: #63b3ed;

    /* Dashboard vibrant colors (for stats tiles with colored backgrounds) */
    --lp-dashboard-success: #38b000;
    --lp-dashboard-success-dark: #2d8f00;
    --lp-dashboard-warning: #ffaa00;
    --lp-dashboard-warning-dark: #e69900;
    --lp-dashboard-danger: #e74a3b;
    --lp-dashboard-danger-dark: #c73e30;
    --lp-dashboard-info: #4299e1;
    --lp-dashboard-info-dark: #3182ce;

    /* Secondary / Accent */
    --lp-secondary: #6c757d;
    --lp-orange: #ff9800;
    --lp-orange-dark: #f57c00;
    --lp-accent-blue: #29b6f6;

    /* ===== TEXT COLORS ===== */
    --lp-text-primary: #1f2937;
    --lp-text-secondary: #6b7280;
    --lp-text-tertiary: #9ca3af;
    --lp-text-inverse: #ffffff;
    --lp-text-link: #26a69a;
    --lp-text-link-hover: #00897b;

    /* ===== SURFACE COLORS ===== */
    --lp-surface-primary: #ffffff;
    --lp-surface-secondary: #f8fafc;
    --lp-surface-tertiary: #f1f5f9;
    --lp-border-light: #e2e8f0;
    --lp-border-medium: #cbd5e1;

    /* ===== TYPOGRAPHY ===== */
    --lp-font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --lp-font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;

    /* Font Sizes */
    --lp-text-xs: 0.75rem;       /* 12px */
    --lp-text-sm: 0.875rem;      /* 14px */
    --lp-text-base: 1rem;        /* 16px */
    --lp-text-lg: 1.125rem;      /* 18px */
    --lp-text-xl: 1.25rem;       /* 20px */
    --lp-text-2xl: 1.5rem;       /* 24px */
    --lp-text-3xl: 1.875rem;     /* 30px */
    --lp-text-4xl: 2.25rem;      /* 36px */
    --lp-text-5xl: 3rem;         /* 48px */
    --lp-text-6xl: 3.75rem;      /* 60px */
    --lp-text-7xl: 4.5rem;       /* 72px */

    /* Font Weights */
    --lp-font-light: 300;
    --lp-font-normal: 400;
    --lp-font-medium: 500;
    --lp-font-semibold: 600;
    --lp-font-bold: 700;
    --lp-font-extrabold: 800;

    /* Line Heights */
    --lp-leading-tight: 1.25;
    --lp-leading-snug: 1.375;
    --lp-leading-normal: 1.5;
    --lp-leading-relaxed: 1.625;

    /* ===== SPACING (8px base grid) ===== */
    --lp-space-0: 0;
    --lp-space-1: 0.25rem;       /* 4px */
    --lp-space-2: 0.5rem;        /* 8px */
    --lp-space-3: 0.75rem;       /* 12px */
    --lp-space-4: 1rem;          /* 16px */
    --lp-space-5: 1.25rem;       /* 20px */
    --lp-space-6: 1.5rem;        /* 24px */
    --lp-space-8: 2rem;          /* 32px */
    --lp-space-10: 2.5rem;       /* 40px */
    --lp-space-12: 3rem;         /* 48px */
    --lp-space-16: 4rem;         /* 64px */
    --lp-space-20: 5rem;         /* 80px */
    --lp-space-24: 6rem;         /* 96px */

    /* ===== SHADOWS ===== */
    --lp-shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --lp-shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.08);
    --lp-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --lp-shadow-lg: 0 8px 20px rgba(0, 0, 0, 0.12);
    --lp-shadow-xl: 0 12px 32px rgba(0, 0, 0, 0.15);
    --lp-shadow-card: 0 2px 12px rgba(0, 0, 0, 0.04);
    --lp-shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.08);

    /* Color-tinted shadows */
    --lp-shadow-primary: 0 4px 14px rgba(38, 166, 154, 0.25);
    --lp-shadow-brand: 0 4px 12px rgba(3, 105, 161, 0.25);
    --lp-shadow-brand-lg: 0 12px 32px rgba(3, 105, 161, 0.35);
    --lp-shadow-success: 0 4px 12px rgba(13, 148, 136, 0.25);
    --lp-shadow-purple: 0 4px 12px rgba(109, 40, 217, 0.25);
    --lp-shadow-orange: 0 4px 14px rgba(255, 152, 0, 0.25);

    /* ===== BORDER RADIUS ===== */
    --lp-radius-sm: 4px;
    --lp-radius-base: 8px;
    --lp-radius-md: 12px;
    --lp-radius-lg: 16px;        /* Standard for all cards */
    --lp-radius-xl: 24px;
    --lp-radius-full: 9999px;

    --lp-border-width: 1px;
    --lp-border-color: var(--lp-slate-200);

    /* ===== TRANSITIONS & MOTION ===== */
    --lp-ease: cubic-bezier(0.25, 0.8, 0.25, 1);
    --lp-ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --lp-ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
    --lp-duration-fast: 150ms;
    --lp-duration-base: 300ms;
    --lp-duration-slow: 500ms;
    --lp-transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --lp-transition-base: 300ms cubic-bezier(0.25, 0.8, 0.25, 1);
    --lp-transition-slow: 500ms cubic-bezier(0.25, 0.8, 0.25, 1);

    /* ===== GLASSMORPHISM ===== */
    --lp-glass-bg: rgba(255, 255, 255, 0.72);
    --lp-glass-blur: 16px;
    --lp-glass-border: rgba(255, 255, 255, 0.5);

    /* ===== GRADIENTS ===== */
    --lp-gradient-primary: linear-gradient(135deg, #26a69a 0%, #00897b 100%);
    --lp-gradient-primary-light: linear-gradient(135deg, rgba(38, 166, 154, 0.1) 0%, rgba(0, 137, 123, 0.1) 100%);
    --lp-gradient-primary-lighter: linear-gradient(135deg, rgba(38, 166, 154, 0.05) 0%, rgba(0, 137, 123, 0.05) 100%);
    --lp-gradient-brand: linear-gradient(135deg, var(--lp-brand-800) 0%, var(--lp-brand-700) 100%);
    --lp-gradient-brand-bright: linear-gradient(135deg, var(--lp-brand-700) 0%, var(--lp-brand-500) 100%);
    --lp-gradient-success: linear-gradient(135deg, var(--lp-success-600) 0%, var(--lp-success-400) 100%);
    --lp-gradient-purple: linear-gradient(135deg, var(--lp-purple-600) 0%, var(--lp-purple-400) 100%);
    --lp-gradient-danger: linear-gradient(135deg, #dc3545 0%, #ff6b6b 100%);
    --lp-gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e293b 25%, #334155 50%, #475569 75%, #64748b 100%);

    /* Card top-border gradients */
    --lp-gradient-border-primary: linear-gradient(90deg, var(--lp-primary) 0%, var(--lp-primary-light) 100%);
    --lp-gradient-border-success: linear-gradient(90deg, var(--lp-success-600) 0%, var(--lp-success-400) 100%);
    --lp-gradient-border-orange: linear-gradient(90deg, var(--lp-orange) 0%, var(--lp-orange-dark) 100%);

    /* ===== Z-INDEX SCALE ===== */
    --lp-z-dropdown: 1000;
    --lp-z-sticky: 1020;
    --lp-z-fixed: 1030;
    --lp-z-modal-backdrop: 1040;
    --lp-z-modal: 1050;
    --lp-z-popover: 1060;
    --lp-z-tooltip: 1070;

    /* ===== DYNAMIC THEMING ===== */
    /* --project-color is set via inline style on project-scoped pages */
    --lp-accent: var(--project-color, var(--lp-primary));
    --lp-accent-glow: 0 0 0 3px color-mix(in srgb, var(--lp-accent) 12%, transparent);

    /* ===== HERO / MARKETING TOKENS ===== */
    --lp-hero-padding-desktop: 100px 0 80px;
    --lp-hero-padding-mobile: 80px 0 60px;
    --lp-hero-content-max-width: 800px;
    --lp-section-padding-y: 80px;
    --lp-section-padding-y-mobile: 48px;
}

/* ===== RESPONSIVE TOKEN ADJUSTMENTS ===== */

@media (max-width: 991px) {
    :root {
        --lp-text-5xl: 2.5rem;
        --lp-text-6xl: 3rem;
        --lp-section-padding-y: 64px;
    }
}

@media (max-width: 767px) {
    :root {
        --lp-text-4xl: 2rem;
        --lp-text-5xl: 2.25rem;
        --lp-text-6xl: 2.5rem;
        --lp-section-padding-y: var(--lp-section-padding-y-mobile);
    }
}

@media (max-width: 575px) {
    :root {
        --lp-text-3xl: 1.5rem;
        --lp-text-4xl: 1.875rem;
        --lp-text-5xl: 2rem;
    }
}