/* ==========================================================================
   Base CSS - Reset, Variables, and Utilities
   ========================================================================== */

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

/* CSS Custom Properties */
:root {
    /* Colors */
    --clr-bg: #ffffff;
    --clr-surface: #f7f9f8;
    --clr-text: #0b0b0b;
    --clr-muted: #5e6d64;
    
    --clr-primary: #1e7f53;
    --clr-primary-600: #2b9b65;
    --clr-primary-100: #e7f3ec;
    
    --clr-border: #e6e8e7;
    --clr-error: #dc2626;
    --clr-success: #059669;
    --clr-warning: #d97706;
    
    /* Layout */
    --radius: 12px;
    --shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 16px 60px rgba(0, 0, 0, 0.08);
    --container: 1180px;
    
    /* Spacing */
    --space-1: 0.5rem;   /* 8px */
    --space-2: 1rem;     /* 16px */
    --space-3: 1.5rem;   /* 24px */
    --space-4: 2rem;     /* 32px */
    --space-5: 2.5rem;   /* 40px */
    --space-6: 3rem;     /* 48px */
    --space-8: 4rem;     /* 64px */
    --space-12: 6rem;    /* 96px */
    --space-16: 8rem;    /* 128px */
    
    /* Typography */
    --font-family: 'Outfit', system-ui, -apple-system, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
    --font-size-xs: 0.75rem;   /* 12px */
    --font-size-sm: 0.875rem;  /* 14px */
    --font-size-base: 1rem;    /* 16px */
    --font-size-lg: 1.125rem;  /* 18px */
    --font-size-xl: 1.25rem;   /* 20px */
    --font-size-2xl: 1.5rem;   /* 24px */
    --font-size-3xl: 1.875rem; /* 30px */
    --font-size-4xl: 2.25rem;  /* 36px */
    --font-size-5xl: 3rem;     /* 48px */
    
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    
    /* Transitions */
    --transition-fast: 0.15s ease-out;
    --transition-normal: 0.3s ease-out;
    --transition-slow: 0.5s ease-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;
    --z-toast: 1080;
    --z-mobile-nav: 9999;
}

/* Base Styles */
html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--clr-text);
    background-color: var(--clr-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    color: var(--clr-text);
    margin-bottom: var(--space-2);
}

h1 {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

h4 {
    font-size: var(--font-size-xl);
}

h5 {
    font-size: var(--font-size-lg);
}

h6 {
    font-size: var(--font-size-base);
}

p {
    margin-bottom: var(--space-3);
    color: var(--clr-text);
    line-height: var(--line-height-relaxed);
}

p:last-child {
    margin-bottom: 0;
}

/* Links */
a {
    color: var(--clr-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--clr-primary-600);
}

a:focus {
    outline: 2px solid var(--clr-primary);
    outline-offset: 2px;
}

/* Lists */
ul, ol {
    margin-bottom: var(--space-3);
    padding-left: var(--space-4);
}

li {
    margin-bottom: var(--space-1);
}


/* Images */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Material Symbols Global Settings */
.material-symbols-outlined {
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

.material-symbols-rounded {
    font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* Form Elements */
input, textarea, select, button {
    font-family: inherit;
    font-size: inherit;
}

/* Focus styles */
input:focus,
textarea:focus,
select:focus,
button:focus {
    outline: 2px solid var(--clr-primary);
    outline-offset: 2px;
}

/* Utility Classes */

/* Container */
.container {
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: var(--space-2);
}

@media (min-width: 768px) {
    .container {
        padding-inline: var(--space-4);
    }
}

/* Spacing utilities */
.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: var(--space-1) !important; }
.mt-2 { margin-top: var(--space-2) !important; }
.mt-3 { margin-top: var(--space-3) !important; }
.mt-4 { margin-top: var(--space-4) !important; }
.mt-5 { margin-top: var(--space-5) !important; }
.mt-6 { margin-top: var(--space-6) !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: var(--space-1) !important; }
.mb-2 { margin-bottom: var(--space-2) !important; }
.mb-3 { margin-bottom: var(--space-3) !important; }
.mb-4 { margin-bottom: var(--space-4) !important; }
.mb-5 { margin-bottom: var(--space-5) !important; }
.mb-6 { margin-bottom: var(--space-6) !important; }

.pt-0 { padding-top: 0 !important; }
.pt-1 { padding-top: var(--space-1) !important; }
.pt-2 { padding-top: var(--space-2) !important; }
.pt-3 { padding-top: var(--space-3) !important; }
.pt-4 { padding-top: var(--space-4) !important; }
.pt-5 { padding-top: var(--space-5) !important; }
.pt-6 { padding-top: var(--space-6) !important; }

.pb-0 { padding-bottom: 0 !important; }
.pb-1 { padding-bottom: var(--space-1) !important; }
.pb-2 { padding-bottom: var(--space-2) !important; }
.pb-3 { padding-bottom: var(--space-3) !important; }
.pb-4 { padding-bottom: var(--space-4) !important; }
.pb-5 { padding-bottom: var(--space-5) !important; }
.pb-6 { padding-bottom: var(--space-6) !important; }

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

.text-muted { color: var(--clr-muted); }
.text-primary { color: var(--clr-primary); }
.text-error { color: var(--clr-error); }
.text-success { color: var(--clr-success); }

/* Display utilities */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-flex { display: flex !important; }
.d-grid { display: grid !important; }

/* Flex utilities */
.flex-column { flex-direction: column; }
.flex-row { flex-direction: row; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.align-center { align-items: center; }
.align-start { align-items: flex-start; }
.align-end { align-items: flex-end; }

.flex-1 { flex: 1; }
.flex-grow { flex-grow: 1; }
.flex-shrink { flex-shrink: 1; }

/* Position utilities */
.position-relative { position: relative; }
.position-absolute { position: absolute; }
.position-fixed { position: fixed; }
.position-sticky { position: sticky; }

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

/* Responsive utilities */
@media (max-width: 767px) {
    .d-md-none { display: none !important; }
}

@media (min-width: 768px) {
    .d-md-block { display: block !important; }
    .d-md-flex { display: flex !important; }
}

@media (max-width: 1023px) {
    .d-lg-none { display: none !important; }
}

@media (min-width: 1024px) {
    .d-lg-block { display: block !important; }
    .d-lg-flex { display: flex !important; }
}

/* Smooth transitions for interactive elements */
* {
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --clr-border: #000000;
        --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    }
}