/**
 * SY Core CSS - Essential variables and base styles
 * This file contains the most fundamental CSS that's used across the entire site
 */

/* CSS Custom Properties (Variables) */
:root {
    --primary-maroon: #730000;
    --secondary-gray: #999999;
    --accent-gray: #79797A;
    --accent-red: #CD0000;
    --bright-red: #FF0102;
    
    /* Additional semantic colors */
    --text-primary: #333;
    --text-secondary: #666;
    --text-light: #999;
    --background-light: #f8f9fa;
    --background-white: #ffffff;
    --border-light: #e9ecef;
    --border-lighter: #f0f0f0;
    
    /* Shadows */
    --shadow-light: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-medium: 0 4px 15px rgba(0,0,0,0.12);
    --shadow-heavy: 0 6px 25px rgba(0,0,0,0.15);
    
    /* Border radius */
    --border-radius-small: 4px;
    --border-radius-medium: 8px;
    --border-radius-large: 12px;
    --border-radius-pill: 50px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Container widths */
    --container-max-width: 1200px;
    --container-padding: 2rem;
    --container-padding-mobile: 1rem;
    
    /* Typography */
    --font-family-base: 'Arial', sans-serif;
    --font-size-xs: 0.8rem;
    --font-size-sm: 0.9rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.2rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3rem;
    
    /* Z-index scale */
    --z-index-dropdown: 100;
    --z-index-sticky: 100;
    --z-index-modal: 1000;
    --z-index-overlay: 9999;
    --z-index-tooltip: 10000;
}

/* Base reset and typography */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-base);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Container utility class */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--container-padding-mobile);
    }
}

/* Section utility class */
.section {
    padding: var(--spacing-lg) 0;
}

@media (max-width: 768px) {
    .section {
        padding: var(--spacing-md) 0;
    }
}

/* Common button styles */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--border-radius-medium);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    line-height: 1.5;
}

.btn-primary {
    background: var(--primary-maroon);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-red);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-secondary {
    background: var(--bright-red);
    color: white;
}

.btn-secondary:hover {
    background: var(--accent-red);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 1, 2, 0.3);
}

.btn-pill {
    border-radius: var(--border-radius-pill);
    padding: var(--spacing-sm) calc(var(--spacing-md) * 1.5);
}

/* Common card styles */
.card {
    background: var(--background-white);
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-light);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-heavy);
}

/* Typography utilities */
.text-center {
    text-align: center;
}

.text-primary {
    color: var(--primary-maroon);
}

.text-secondary {
    color: var(--text-secondary);
}

.text-light {
    color: var(--text-light);
}

/* Spacing utilities */
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

/* Responsive utilities */
@media (max-width: 768px) {
    .hidden-mobile {
        display: none;
    }
}

@media (min-width: 769px) {
    .hidden-desktop {
        display: none;
    }
}