/* ===================================
   MASTER.CSS - Main Stylesheet
   Engineering Company Website
   Modular Component Import System
   =================================== */

/* ===================================
   1. RESET & BASE STYLES
   =================================== */

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
        sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: var(--color-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 50%, rgba(212, 175, 55, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(212, 175, 55, 0.05) 0%, transparent 50%),
        linear-gradient(135deg, var(--color-primary) 0%, var(--color-black) 100%);
    z-index: -1;
    pointer-events: none;
}

/* ===================================
   2. NOTE: CSS FILES LOADED VIA HTML
   All component CSS files are loaded directly in index.html
   for better browser compatibility and performance:
   - theme.css (variables)
   - master.css (this file - base styles)
   - components/logo-animation.css
   - components/navigation.css
   - components/home.css
   =================================== */

/* ===================================
   3. UTILITY CLASSES
   Common utility classes
   =================================== */

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.pt-xs { padding-top: var(--spacing-xs); }
.pt-sm { padding-top: var(--spacing-sm); }
.pt-md { padding-top: var(--spacing-md); }
.pt-lg { padding-top: var(--spacing-lg); }
.pt-xl { padding-top: var(--spacing-xl); }

.pb-xs { padding-bottom: var(--spacing-xs); }
.pb-sm { padding-bottom: var(--spacing-sm); }
.pb-md { padding-bottom: var(--spacing-md); }
.pb-lg { padding-bottom: var(--spacing-lg); }
.pb-xl { padding-bottom: var(--spacing-xl); }

/* ===================================
   5. SCROLLBAR STYLING
   =================================== */

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--glass-bg);
    border-radius: 5px;
    border: 2px solid var(--color-primary);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent);
}

/* ===================================
   6. SELECTION STYLING
   =================================== */

::selection {
    background: var(--color-accent);
    color: var(--color-white);
}

::-moz-selection {
    background: var(--color-accent);
    color: var(--color-white);
}

/* ===================================
   7. 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;
}

/* Focus Styles */
a:focus,
button:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* ===================================
   8. PRINT STYLES
   =================================== */

@media print {
    body::before,
    .navbar,
    .logo-screen {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }
}