/**
 * WealthFromAI Brand Variables
 * Design Philosophy: Modern Tech Picasso
 * Mode: Dark mode dominant
 *
 * @package WealthFromAI
 * @version 1.0.0
 */

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

    /* Primary Palette - Navy Blues */
    --wfai-primary: #0D2137;
    --wfai-primary-rgb: 13, 33, 55;
    --wfai-primary-light: #1a3654;
    --wfai-primary-dark: #060f1a;

    /* Secondary (Mint/Teal - AI, Innovation) */
    --wfai-secondary: #00D4AA;
    --wfai-secondary-rgb: 0, 212, 170;
    --wfai-secondary-light: #33debb;
    --wfai-secondary-dark: #00a88a;
    --wfai-secondary-muted: rgba(0, 212, 170, 0.15);

    /* Accent (Gold - Wealth, Premium) */
    --wfai-accent: #C9A962;
    --wfai-accent-rgb: 201, 169, 98;
    --wfai-accent-light: #d4ba7d;
    --wfai-accent-dark: #b08a42;
    --wfai-accent-muted: rgba(201, 169, 98, 0.15);

    /* Background Colors */
    --wfai-bg: #0A0F14;
    --wfai-bg-rgb: 10, 15, 20;
    --wfai-bg-elevated: #0d1318;

    /* Surface Colors (Cards, Elevated Elements) */
    --wfai-surface: #0D1B2A;
    --wfai-surface-rgb: 13, 27, 42;
    --wfai-surface-light: #111827;
    --wfai-surface-lighter: #1f2937;

    /* Card Colors */
    --wfai-card: #1A1F2E;
    --wfai-card-rgb: 26, 31, 46;
    --wfai-card-elevated: #222838;

    /* Text Colors */
    --wfai-text: #E8E8E8;
    --wfai-text-rgb: 232, 232, 232;
    --wfai-text-primary: #E8E8E8;
    --wfai-text-secondary: #A0A0A0;
    --wfai-text-muted: #9CA3AF;
    --wfai-text-subtle: #6B7280;
    --wfai-text-inverse: #111827;

    /* Border Colors */
    --wfai-border: #252B3B;
    --wfai-border-rgb: 37, 43, 59;
    --wfai-border-default: rgba(255, 255, 255, 0.08);
    --wfai-border-hover: rgba(255, 255, 255, 0.15);
    --wfai-border-accent: rgba(0, 212, 170, 0.3);
    --wfai-border-gold: rgba(201, 169, 98, 0.3);

    /* Semantic Colors */
    --wfai-success: #10B981;
    --wfai-success-rgb: 16, 185, 129;
    --wfai-warning: #F59E0B;
    --wfai-warning-rgb: 245, 158, 11;
    --wfai-error: #EF4444;
    --wfai-error-rgb: 239, 68, 68;
    --wfai-info: #3B82F6;
    --wfai-info-rgb: 59, 130, 246;

    /* ===========================
       GRADIENT DEFINITIONS
       =========================== */

    --wfai-gradient-primary: linear-gradient(135deg, var(--wfai-primary) 0%, var(--wfai-primary-dark) 100%);
    --wfai-gradient-glow: linear-gradient(135deg, var(--wfai-secondary) 0%, var(--wfai-secondary-dark) 100%);
    --wfai-gradient-gold: linear-gradient(135deg, var(--wfai-accent) 0%, var(--wfai-accent-dark) 100%);
    --wfai-gradient-surface: linear-gradient(180deg, var(--wfai-surface) 0%, var(--wfai-bg) 100%);
    --wfai-gradient-hero: linear-gradient(135deg, rgba(13, 33, 55, 0.9) 0%, rgba(10, 15, 20, 0.95) 100%);
    --wfai-gradient-card: linear-gradient(180deg, var(--wfai-card) 0%, var(--wfai-surface) 100%);
    --wfai-gradient-mint-gold: linear-gradient(135deg, var(--wfai-secondary) 0%, var(--wfai-accent) 100%);

    /* ===========================
       TYPOGRAPHY SYSTEM
       =========================== */

    /* Font Families */
    --wfai-font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --wfai-font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --wfai-font-data: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --wfai-font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Font Sizes - Fluid Scale with clamp() */
    --wfai-text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
    --wfai-text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 0.9375rem);
    --wfai-text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
    --wfai-text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
    --wfai-text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
    --wfai-text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
    --wfai-text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.5rem);
    --wfai-text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3rem);
    --wfai-text-5xl: clamp(3rem, 2rem + 5vw, 4rem);
    --wfai-text-6xl: clamp(3.75rem, 2.5rem + 6.25vw, 5rem);

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

    /* Line Heights */
    --wfai-leading-none: 1;
    --wfai-leading-tight: 1.15;
    --wfai-leading-snug: 1.3;
    --wfai-leading-normal: 1.5;
    --wfai-leading-relaxed: 1.65;
    --wfai-leading-loose: 1.8;

    /* Letter Spacing */
    --wfai-tracking-tighter: -0.05em;
    --wfai-tracking-tight: -0.025em;
    --wfai-tracking-normal: 0;
    --wfai-tracking-wide: 0.025em;
    --wfai-tracking-wider: 0.05em;
    --wfai-tracking-widest: 0.1em;

    /* ===========================
       SPACING SYSTEM
       =========================== */

    /* Base spacing unit: 4px */
    --wfai-space-0: 0;
    --wfai-space-1: 0.25rem;   /* 4px */
    --wfai-space-2: 0.5rem;    /* 8px */
    --wfai-space-3: 0.75rem;   /* 12px */
    --wfai-space-4: 1rem;      /* 16px */
    --wfai-space-5: 1.25rem;   /* 20px */
    --wfai-space-6: 1.5rem;    /* 24px */
    --wfai-space-8: 2rem;      /* 32px */
    --wfai-space-10: 2.5rem;   /* 40px */
    --wfai-space-12: 3rem;     /* 48px */
    --wfai-space-16: 4rem;     /* 64px */
    --wfai-space-20: 5rem;     /* 80px */
    --wfai-space-24: 6rem;     /* 96px */
    --wfai-space-32: 8rem;     /* 128px */

    /* Section Spacing */
    --wfai-section-padding: clamp(3rem, 5vw, 6rem);
    --wfai-section-gap: clamp(4rem, 8vw, 8rem);

    /* Container Widths */
    --wfai-container-sm: 640px;
    --wfai-container-md: 768px;
    --wfai-container-lg: 1024px;
    --wfai-container-xl: 1280px;
    --wfai-container-2xl: 1536px;
    --wfai-container-content: 720px;

    /* ===========================
       BORDER & RADIUS
       =========================== */

    --wfai-radius-none: 0;
    --wfai-radius-sm: 4px;
    --wfai-radius-md: 8px;
    --wfai-radius-lg: 12px;
    --wfai-radius-xl: 16px;
    --wfai-radius-2xl: 24px;
    --wfai-radius-full: 9999px;

    /* ===========================
       SHADOWS & EFFECTS
       =========================== */

    /* Box Shadows */
    --wfai-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --wfai-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --wfai-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --wfai-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
    --wfai-shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.6);

    /* Glow Effects - Mint */
    --wfai-glow-sm: 0 0 10px rgba(0, 212, 170, 0.2);
    --wfai-glow-md: 0 0 20px rgba(0, 212, 170, 0.3);
    --wfai-glow-lg: 0 0 30px rgba(0, 212, 170, 0.4);

    /* Glow Effects - Gold */
    --wfai-glow-gold-sm: 0 0 10px rgba(201, 169, 98, 0.2);
    --wfai-glow-gold-md: 0 0 20px rgba(201, 169, 98, 0.3);
    --wfai-glow-gold-lg: 0 0 30px rgba(201, 169, 98, 0.4);

    /* Glassmorphism */
    --wfai-glass-bg: rgba(17, 24, 39, 0.7);
    --wfai-glass-bg-light: rgba(17, 24, 39, 0.5);
    --wfai-glass-bg-dark: rgba(10, 15, 20, 0.8);
    --wfai-glass-blur: blur(16px);
    --wfai-glass-border: rgba(0, 212, 170, 0.1);

    /* ===========================
       TRANSITIONS & ANIMATIONS
       =========================== */

    /* Transition Durations */
    --wfai-duration-fast: 150ms;
    --wfai-duration-normal: 300ms;
    --wfai-duration-slow: 500ms;
    --wfai-duration-slower: 700ms;

    /* Easing Functions */
    --wfai-ease-default: cubic-bezier(0.4, 0, 0.2, 1);
    --wfai-ease-in: cubic-bezier(0.4, 0, 1, 1);
    --wfai-ease-out: cubic-bezier(0, 0, 0.2, 1);
    --wfai-ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --wfai-ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* Combined Transitions */
    --wfai-transition-fast: all var(--wfai-duration-fast) var(--wfai-ease-default);
    --wfai-transition-normal: all var(--wfai-duration-normal) var(--wfai-ease-default);
    --wfai-transition-slow: all var(--wfai-duration-slow) var(--wfai-ease-default);

    /* ===========================
       Z-INDEX SCALE
       =========================== */

    --wfai-z-below: -1;
    --wfai-z-base: 0;
    --wfai-z-above: 10;
    --wfai-z-dropdown: 100;
    --wfai-z-sticky: 200;
    --wfai-z-fixed: 300;
    --wfai-z-modal-backdrop: 400;
    --wfai-z-modal: 500;
    --wfai-z-popover: 600;
    --wfai-z-tooltip: 700;
    --wfai-z-top: 9999;
}

/* ===========================
   DARK MODE BASE STYLES
   =========================== */

body,
.wfai-dark-mode {
    background-color: var(--wfai-bg);
    color: var(--wfai-text);
}

/* Selection Colors */
::selection {
    background-color: var(--wfai-secondary);
    color: var(--wfai-bg);
}

::-moz-selection {
    background-color: var(--wfai-secondary);
    color: var(--wfai-bg);
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--wfai-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--wfai-border);
    border-radius: var(--wfai-radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--wfai-secondary);
}

/* Firefox Scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--wfai-border) var(--wfai-bg);
}

/* ===========================
   RESPONSIVE MEDIA QUERIES
   =========================== */

@media (max-width: 767px) {
    :root {
        --wfai-section-padding: 2rem;
        --wfai-section-gap: 3rem;
    }
}

@media (min-width: 768px) and (max-width: 1023px) {
    :root {
        --wfai-section-padding: 3rem;
        --wfai-section-gap: 4rem;
    }
}

@media (min-width: 1024px) {
    :root {
        --wfai-section-padding: 5rem;
        --wfai-section-gap: 6rem;
    }
}