/* ====================================
   OwnIt Design System
   African-inspired, Voice-First
   ==================================== */

:root {
    /* ===== Color Palette ===== */
    /* Inspired by ownit-site.vercel.app */
    
    /* Neutrals */
    --color-bg-primary: #FAFAF8;        /* Cream/Off-white background */
    --color-bg-secondary: #F5F5F3;      /* Slightly darker cream */
    --color-bg-elevated: #FFFFFF;       /* Pure white for cards */
    
    --color-text-primary: #1A1A1A;      /* Deep black for main text */
    --color-text-secondary: #4A4A4A;    /* Medium gray for secondary text */
    --color-text-tertiary: #878787;     /* Light gray for hints */
    
    /* Brand Colors */
    --color-accent-gold: #D4A373;       /* Warm gold/ochre - primary accent */
    --color-accent-gold-hover: #C89058; /* Darker gold for hover states */
    --color-accent-gold-light: #E8D4B8; /* Light gold for backgrounds */
    
    --color-accent-indigo: #2C5F7F;     /* Deep indigo blue - secondary accent */
    --color-accent-indigo-hover: #1F4A62;
    --color-accent-indigo-light: #D4E3EB;
    
    /* Semantic Colors */
    --color-success: #4CAF50;
    --color-warning: #FF9800;
    --color-error: #F44336;
    --color-info: #2196F3;
    
    /* ===== Typography ===== */
    
    /* Font Families */
    --font-serif: 'Merriweather', Georgia, serif;     /* For headings - echoes the Griot/storyteller */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Font Sizes */
    --text-xs: 0.75rem;      /* 12px */
    --text-sm: 0.875rem;     /* 14px */
    --text-base: 1rem;       /* 16px - minimum for accessibility */
    --text-lg: 1.125rem;     /* 18px */
    --text-xl: 1.25rem;      /* 20px */
    --text-2xl: 1.5rem;      /* 24px */
    --text-3xl: 1.875rem;    /* 30px */
    --text-4xl: 2.25rem;     /* 36px */
    --text-5xl: 3rem;        /* 48px */
    
    /* Font Weights */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-black: 900;
    
    /* Line Heights */
    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.75;
    
    /* ===== Spacing Scale ===== */
    --space-1: 0.25rem;    /* 4px */
    --space-2: 0.5rem;     /* 8px */
    --space-3: 0.75rem;    /* 12px */
    --space-4: 1rem;       /* 16px - base unit */
    --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 */
    
    /* ===== Border Radius ===== */
    --radius-sm: 0.25rem;   /* 4px */
    --radius-md: 0.5rem;    /* 8px */
    --radius-lg: 0.75rem;   /* 12px */
    --radius-xl: 1rem;      /* 16px */
    --radius-2xl: 1.5rem;   /* 24px */
    --radius-full: 9999px;  /* Fully rounded */
    
    /* ===== Shadows ===== */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Special: Gold shadow for FAB and important elements */
    --shadow-gold: 0 8px 16px -4px rgba(212, 163, 115, 0.4);
    
    /* ===== Transitions ===== */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
    
    /* ===== Breakpoints (for reference) ===== */
    --breakpoint-sm: 320px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1440px;
    
    /* ===== Layout ===== */
    --sidebar-width: 240px;
    --header-height: 64px;
    --mobile-nav-height: 60px;
    --max-content-width: 680px;
    --fab-size: 64px;
    
    /* ===== Z-Index Scale ===== */
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
    --z-fab: 800;
}

/* ===== CSS Reset & Base Styles ===== */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    line-height: var(--leading-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    min-height: 100vh;
}

/* ===== Typography Utilities ===== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    color: var(--color-text-primary);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
    margin-bottom: var(--space-4);
}

a {
    color: var(--color-accent-indigo);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent-indigo-hover);
}

/* ===== Button Base Styles ===== */

button {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    font-weight: var(--font-medium);
    border: none;
    background: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

button:focus-visible {
    outline: 2px solid var(--color-accent-gold);
    outline-offset: 2px;
}

/* ===== Form Elements ===== */

input, textarea, select {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    color: var(--color-text-primary);
    border: 1px solid var(--color-text-tertiary);
    border-radius: var(--radius-md);
    padding: var(--space-3) var(--space-4);
    transition: border-color var(--transition-fast);
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--color-accent-gold);
}

/* ===== Utility Classes ===== */

/* Spacing */
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

/* Flexbox */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

/* Grid */
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }

/* Border Radius */
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* Shadows */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

/* Text Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.font-serif { font-family: var(--font-serif); }
.font-sans { font-family: var(--font-sans); }

.text-primary { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-gold { color: var(--color-accent-gold); }
.text-indigo { color: var(--color-accent-indigo); }

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Touch targets - minimum 44x44px for accessibility */
.touch-target {
    min-width: 44px;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}