/* CSS Custom Properties (Variables) for Silent Bride Drama Site */
/* Design tokens optimized for accessibility and brand identity */

:root {
    /* Color Palette - Inspired by silence, elegance, and emotional depth */
    
    /* Primary Colors - Deep emotional tones */
    --color-primary-50: #f8fafc;
    --color-primary-100: #f1f5f9;
    --color-primary-200: #e2e8f0;
    --color-primary-300: #cbd5e1;
    --color-primary-400: #94a3b8;
    --color-primary-500: #64748b;
    --color-primary-600: #475569;
    --color-primary-700: #334155;
    --color-primary-800: #1e293b;
    --color-primary-900: #0f172a;
    
    /* Accent Colors - Silent strength and feminine power */
    --color-accent-50: #fdf2f8;
    --color-accent-100: #fce7f3;
    --color-accent-200: #fbcfe8;
    --color-accent-300: #f9a8d4;
    --color-accent-400: #f472b6;
    --color-accent-500: #ec4899;
    --color-accent-600: #db2777;
    --color-accent-700: #be185d;
    --color-accent-800: #9d174d;
    --color-accent-900: #831843;
    
    /* Neutral Colors - Sophisticated grays for elegance */
    --color-neutral-50: #fafafa;
    --color-neutral-100: #f5f5f5;
    --color-neutral-200: #e5e5e5;
    --color-neutral-300: #d4d4d4;
    --color-neutral-400: #a3a3a3;
    --color-neutral-500: #737373;
    --color-neutral-600: #525252;
    --color-neutral-700: #404040;
    --color-neutral-800: #262626;
    --color-neutral-900: #171717;
    
    /* Semantic Colors */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-info: #3b82f6;
    
    /* Gradient Definitions */
    --gradient-primary: linear-gradient(135deg, var(--color-primary-600) 0%, var(--color-primary-800) 100%);
    --gradient-accent: linear-gradient(135deg, var(--color-accent-500) 0%, var(--color-accent-700) 100%);
    --gradient-hero: linear-gradient(135deg, var(--color-primary-900) 0%, var(--color-primary-700) 50%, var(--color-accent-800) 100%);
    --gradient-overlay: linear-gradient(rgba(15, 23, 42, 0.8), rgba(15, 23, 42, 0.6));
    
    /* Typography Scale - Optimized for readability and hierarchy */
    
    /* Font Families */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    --font-serif: 'Playfair Display', 'Georgia', 'Cambria', 'Times New Roman', serif;
    --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
    
    /* Font Weights */
    --font-thin: 100;
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
    --font-black: 900;
    
    /* Font Sizes - Fluid typography using clamp() */
    --font-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);     /* 12-14px */
    --font-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);       /* 14-16px */
    --font-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);     /* 16-18px */
    --font-lg: clamp(1.125rem, 1.05rem + 0.375vw, 1.25rem);   /* 18-20px */
    --font-xl: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);       /* 20-24px */
    --font-2xl: clamp(1.5rem, 1.35rem + 0.75vw, 1.875rem);    /* 24-30px */
    --font-3xl: clamp(1.875rem, 1.65rem + 1.125vw, 2.25rem);  /* 30-36px */
    --font-4xl: clamp(2.25rem, 1.95rem + 1.5vw, 3rem);        /* 36-48px */
    --font-5xl: clamp(3rem, 2.55rem + 2.25vw, 3.75rem);       /* 48-60px */
    --font-6xl: clamp(3.75rem, 3.15rem + 3vw, 4.5rem);        /* 60-72px */
    
    /* Line Heights */
    --leading-none: 1;
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    --leading-loose: 2;
    
    /* Spacing Scale - Consistent spacing using rem units */
    --space-px: 1px;
    --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 */
    --space-40: 10rem;    /* 160px */
    --space-48: 12rem;    /* 192px */
    --space-56: 14rem;    /* 224px */
    --space-64: 16rem;    /* 256px */
    
    /* Border Radius */
    --radius-none: 0;
    --radius-sm: 0.125rem;    /* 2px */
    --radius-base: 0.25rem;   /* 4px */
    --radius-md: 0.375rem;    /* 6px */
    --radius-lg: 0.5rem;      /* 8px */
    --radius-xl: 0.75rem;     /* 12px */
    --radius-2xl: 1rem;       /* 16px */
    --radius-3xl: 1.5rem;     /* 24px */
    --radius-full: 9999px;
    
    /* Shadows - Subtle and elegant */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-base: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
    --transition-slower: 500ms ease-in-out;
    
    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    
    /* Breakpoints (for use in media queries) */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;
    
    /* Container Widths */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
    --container-2xl: 1400px;
    
    /* Content Widths */
    --content-narrow: 65ch;
    --content-normal: 75ch;
    --content-wide: 85ch;
    
    /* Aspect Ratios */
    --aspect-square: 1 / 1;
    --aspect-video: 16 / 9;
    --aspect-portrait: 3 / 4;
    --aspect-landscape: 4 / 3;
    
    /* Animation Curves */
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --ease-in: cubic-bezier(0.4, 0, 1, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Semantic Color Mapping */
:root {
    /* Background Colors */
    --bg-primary: var(--color-neutral-50);
    --bg-secondary: var(--color-neutral-100);
    --bg-tertiary: var(--color-neutral-200);
    --bg-card: white;
    --bg-overlay: rgba(15, 23, 42, 0.8);
    --bg-gradient: var(--gradient-hero);
    
    /* Text Colors */
    --text-primary: var(--color-neutral-900);
    --text-secondary: var(--color-neutral-600);
    --text-tertiary: var(--color-neutral-500);
    --text-inverse: white;
    --text-accent: var(--color-accent-600);
    
    /* Border Colors */
    --border-color: var(--color-neutral-200);
    --border-hover: var(--color-neutral-300);
    --border-focus: var(--color-accent-500);
    
    /* Interactive Colors */
    --link-color: var(--color-accent-600);
    --link-hover: var(--color-accent-700);
    --button-primary: var(--color-accent-600);
    --button-primary-hover: var(--color-accent-700);
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: var(--color-neutral-900);
        --bg-secondary: var(--color-neutral-800);
        --bg-tertiary: var(--color-neutral-700);
        --bg-card: var(--color-neutral-800);
        
        --text-primary: var(--color-neutral-100);
        --text-secondary: var(--color-neutral-300);
        --text-tertiary: var(--color-neutral-400);
        
        --border-color: var(--color-neutral-700);
        --border-hover: var(--color-neutral-600);
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --text-primary: black;
        --text-secondary: black;
        --bg-primary: white;
        --bg-card: white;
        --border-color: black;
    }
}