/* ==========================================
   STETHLINK SMART BOX - GLOBAL CSS
   ========================================== */

/* ==========================================
   CSS CUSTOM PROPERTIES (VARIABLES)
   ========================================== */
:root {
    /* Brand Colors */
    --stethlink-primary: #246060;
    --stethlink-accent: #FE9000;
    --stethlink-white: #FFFFFF;
    --stethlink-black: #000000;
    --stethlink-dark: #1A1A1A;
    --stethlink-text-dark: #333333;
    --stethlink-text-light: #666666;
    --stethlink-text-muted: #999999;
    --stethlink-gray-light: #F8F9FA;
    --stethlink-gray-medium: #E9ECEF;
    --stethlink-gray-dark: #6C757D;
    
    /* Social Media Colors */
    --stethlink-facebook: #1877F2;
    --stethlink-twitter: #1DA1F2;
    --stethlink-instagram: #E4405F;
    --stethlink-linkedin: #0A66C2;
    --stethlink-youtube: #FF0000;
    --stethlink-whatsapp: #25D366;
    --stethlink-telegram: #0088CC;
    --stethlink-pinterest: #BD081C;
    --stethlink-tiktok: #000000;
    --stethlink-snapchat: #FFFC00;
    --stethlink-reddit: #FF4500;
    --stethlink-discord: #5865F2;
    
    /* Shadows */
    --stethlink-shadow-sm: 0 2px 4px rgba(36, 96, 96, 0.1);
    --stethlink-shadow-md: 0 4px 8px rgba(36, 96, 96, 0.15);
    --stethlink-shadow-lg: 0 8px 16px rgba(36, 96, 96, 0.2);
    --stethlink-shadow-xl: 0 12px 24px rgba(36, 96, 96, 0.25);
    --stethlink-shadow-accent: 0 4px 15px rgba(254, 144, 0, 0.3);
    
    /* Transitions */
    --stethlink-transition-fast: all 0.2s ease-in-out;
    --stethlink-transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --stethlink-transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --stethlink-transition-bounce: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Border Radius */
    --stethlink-radius-sm: 4px;
    --stethlink-radius-md: 8px;
    --stethlink-radius-lg: 12px;
    --stethlink-radius-xl: 16px;
    --stethlink-radius-round: 50%;
    
    /* Spacing */
    --stethlink-space-xs: 0.25rem;
    --stethlink-space-sm: 0.5rem;
    --stethlink-space-md: 1rem;
    --stethlink-space-lg: 1.5rem;
    --stethlink-space-xl: 2rem;
    --stethlink-space-2xl: 3rem;
    --stethlink-space-3xl: 4rem;
    
    /* Container */
    --stethlink-container-max: 1200px;
    --stethlink-container-padding: 20px;
    
    /* Typography */
    --stethlink-font-family: 'Libre Baskerville', serif;
    --stethlink-font-size-xs: 0.75rem;
    --stethlink-font-size-sm: 0.875rem;
    --stethlink-font-size-base: 1rem;
    --stethlink-font-size-lg: 1.125rem;
    --stethlink-font-size-xl: 1.25rem;
    --stethlink-font-size-2xl: 1.5rem;
    --stethlink-font-size-3xl: 1.875rem;
    --stethlink-font-size-4xl: 2.25rem;
    --stethlink-font-size-5xl: 3rem;
    --stethlink-font-size-6xl: 4rem;
    
    /* Line Heights */
    --stethlink-leading-tight: 1.25;
    --stethlink-leading-normal: 1.5;
    --stethlink-leading-relaxed: 1.75;
    
    /* Font Weights */
    --stethlink-font-light: 300;
    --stethlink-font-normal: 400;
    --stethlink-font-medium: 500;
    --stethlink-font-semibold: 600;
    --stethlink-font-bold: 700;
    --stethlink-font-extrabold: 800;
    
    /* Z-Index Scale */
    --stethlink-z-below: -1;
    --stethlink-z-normal: 1;
    --stethlink-z-above: 10;
    --stethlink-z-modal: 100;
    --stethlink-z-popover: 200;
    --stethlink-z-tooltip: 300;
    --stethlink-z-navbar: 1000;
    --stethlink-z-highest: 9999;
}

/* ==========================================
   GLOBAL RESET & BASE STYLES
   ========================================== */

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

/* Remove default margins and paddings */
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
}

/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
    display: block;
}

/* Base HTML Styles */
html {
    font-size: 16px;
    line-height: 1.15;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--stethlink-font-family);
    font-size: var(--stethlink-font-size-base);
    font-weight: var(--stethlink-font-normal);
    line-height: var(--stethlink-leading-normal);
    color: var(--stethlink-text-dark);
    background-color: var(--stethlink-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* Remove list styles */
ol, ul {
    list-style: none;
}

/* Remove quotes */
blockquote, q {
    quotes: none;
}

blockquote:before, blockquote:after,
q:before, q:after {
    content: '';
    content: none;
}

/* Table styles */
table {
    border-collapse: collapse;
    border-spacing: 0;
}

/* Link styles */
a {
    color: inherit;
    text-decoration: none;
    transition: var(--stethlink-transition-normal);
}

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

/* Button reset */
button {
    border: none;
    background: none;
    font-family: inherit;
    font-size: inherit;
    cursor: pointer;
    outline: none;
    transition: var(--stethlink-transition-normal);
}

/* Input reset */
input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    border: none;
    outline: none;
    background: none;
}

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

/* ==========================================
   UTILITY CLASSES
   ========================================== */

/* Container */
.stethlink-container {
    max-width: var(--stethlink-container-max);
    margin: 0 auto;
    padding: 0 var(--stethlink-container-padding);
    width: 100%;
}

/* Section Spacing */
.stethlink-section {
    padding: var(--stethlink-space-3xl) 0;
}

.stethlink-section-sm {
    padding: var(--stethlink-space-2xl) 0;
}

.stethlink-section-lg {
    padding: calc(var(--stethlink-space-3xl) * 1.5) 0;
}

/* Button Styles */
.stethlink-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--stethlink-space-sm);
    padding: var(--stethlink-space-md) var(--stethlink-space-lg);
    font-family: var(--stethlink-font-family);
    font-weight: var(--stethlink-font-semibold);
    font-size: var(--stethlink-font-size-base);
    border-radius: var(--stethlink-radius-md);
    cursor: pointer;
    transition: var(--stethlink-transition-normal);
    text-decoration: none;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.stethlink-btn-primary {
    background: var(--stethlink-accent);
    color: var(--stethlink-white);
    box-shadow: var(--stethlink-shadow-accent);
}

.stethlink-btn-primary:hover {
    background: #e07f00;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(254, 144, 0, 0.4);
    color: var(--stethlink-white);
}

.stethlink-btn-secondary {
    background: transparent;
    color: var(--stethlink-primary);
    border-color: var(--stethlink-primary);
}

.stethlink-btn-secondary:hover {
    background: var(--stethlink-primary);
    color: var(--stethlink-white);
}

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

.stethlink-text-primary { color: var(--stethlink-primary); }
.stethlink-text-accent { color: var(--stethlink-accent); }
.stethlink-text-white { color: var(--stethlink-white); }
.stethlink-text-dark { color: var(--stethlink-text-dark); }
.stethlink-text-light { color: var(--stethlink-text-light); }
.stethlink-text-muted { color: var(--stethlink-text-muted); }

/* Font Weight Utilities */
.stethlink-font-light { font-weight: var(--stethlink-font-light); }
.stethlink-font-normal { font-weight: var(--stethlink-font-normal); }
.stethlink-font-medium { font-weight: var(--stethlink-font-medium); }
.stethlink-font-semibold { font-weight: var(--stethlink-font-semibold); }
.stethlink-font-bold { font-weight: var(--stethlink-font-bold); }

/* Display Utilities */
.stethlink-hidden { display: none; }
.stethlink-block { display: block; }
.stethlink-inline { display: inline; }
.stethlink-inline-block { display: inline-block; }
.stethlink-flex { display: flex; }
.stethlink-inline-flex { display: inline-flex; }
.stethlink-grid { display: grid; }

/* Flex Utilities */
.stethlink-flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.stethlink-flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.stethlink-flex-col {
    flex-direction: column;
}

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

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

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

/* ==========================================
   RESPONSIVE UTILITIES
   ========================================== */

/* Responsive Container Padding */
@media (max-width: 768px) {
    :root {
        --stethlink-container-padding: 15px;
    }
    
    .stethlink-section {
        padding: var(--stethlink-space-2xl) 0;
    }
}

@media (max-width: 480px) {
    :root {
        --stethlink-container-padding: 10px;
    }
    
    .stethlink-section {
        padding: var(--stethlink-space-xl) 0;
    }
    
    .stethlink-btn {
        padding: var(--stethlink-space-sm) var(--stethlink-space-md);
        font-size: var(--stethlink-font-size-sm);
    }
}

/* ==========================================
   ACCESSIBILITY & PERFORMANCE
   ========================================== */

/* Focus styles */
*:focus {
    outline: 2px solid var(--stethlink-accent);
    outline-offset: 2px;
}

/* 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;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --stethlink-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
        --stethlink-shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
        --stethlink-shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
    }
}

/* Print styles */
@media print {
    .stethlink-navbar,
    .stethlink-btn,
    [class*="animate"] {
        display: none !important;
    }
    
    body {
        color: black !important;
        background: white !important;
    }
}