/* ==========================================================================
   ASTERISM COMMUNICATIONS - Base Styles
   Reset, Typography, and Global Styles
   ========================================================================== */

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -moz-text-size-adjust: 100%;
    text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-relaxed);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Selection */
::selection {
    background-color: var(--color-accent-blue);
    color: var(--color-white);
}

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

/* Focus styles for accessibility */
:focus {
    outline: 2px solid var(--color-accent-blue);
    outline-offset: 2px;
}

:focus:not(:focus-visible) {
    outline: none;
}

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

/* -------------------------------------------------------------------------
   Typography
   ------------------------------------------------------------------------- */

/* Headings */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-serif);
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-snug);
    letter-spacing: var(--letter-spacing-tight);
    color: var(--color-text-primary);
}

h1 {
    font-size: var(--font-size-h1);
    line-height: var(--line-height-tight);
}

h2 {
    font-size: var(--font-size-h2);
    margin-bottom: var(--spacing-8);
}

h3 {
    font-size: var(--font-size-h3);
    margin-bottom: var(--spacing-6);
}

h4 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    letter-spacing: var(--letter-spacing-wide);
    text-transform: uppercase;
    color: var(--color-text-secondary);
}

h5 {
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
}

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

/* Paragraphs */
p {
    margin-bottom: var(--spacing-4);
}

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

/* Lead text */
.lead-text {
    font-size: var(--font-size-lead);
    line-height: var(--line-height-normal);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-light);
}

/* Small text */
.text-small {
    font-size: var(--font-size-sm);
}

.text-xs {
    font-size: var(--font-size-xs);
}

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

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

/* Lists */
ul, ol {
    margin-bottom: var(--spacing-4);
    padding-left: var(--spacing-6);
}

li {
    margin-bottom: var(--spacing-2);
}

/* Blockquotes */
blockquote {
    font-family: var(--font-family-serif);
    font-style: italic;
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    padding-left: var(--spacing-6);
    border-left: 3px solid var(--color-accent-red);
    margin: var(--spacing-8) 0;
}

blockquote cite {
    display: block;
    font-style: normal;
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-4);
    color: var(--color-text-muted);
}

/* Strong / Bold */
strong, b {
    font-weight: var(--font-weight-semibold);
}

/* Emphasis / Italic */
em, i {
    font-style: italic;
}

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

figure {
    margin: var(--spacing-8) 0;
}

figcaption {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: var(--spacing-2);
}

/* -------------------------------------------------------------------------
   Layout Utilities
   ------------------------------------------------------------------------- */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

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

main {
    margin-top: 100px; /* Account for fixed nav */
}

/* Section spacing */
.section {
    padding: var(--spacing-24) 0;
}

.section-sm {
    padding: var(--spacing-16) 0;
}

.section-lg {
    padding: var(--spacing-32) 0;
}

/* -------------------------------------------------------------------------
   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;
}

.hidden {
    display: none !important;
}

.visible {
    visibility: visible !important;
}

.invisible {
    visibility: hidden !important;
}

/* -------------------------------------------------------------------------
   Animation Utilities
   ------------------------------------------------------------------------- */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Reduced motion preference */
@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;
    }
    
    .fade-in {
        opacity: 1;
        transform: none;
    }
}

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

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

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

.text-uppercase {
    text-transform: uppercase;
}

.text-lowercase {
    text-transform: lowercase;
}

.text-capitalize {
    text-transform: capitalize;
}

/* -------------------------------------------------------------------------
   Spacing Utilities
   ------------------------------------------------------------------------- */
.mt-0 { margin-top: 0; }
.mt-4 { margin-top: var(--spacing-4); }
.mt-8 { margin-top: var(--spacing-8); }
.mt-12 { margin-top: var(--spacing-12); }
.mt-16 { margin-top: var(--spacing-16); }

.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-8 { margin-bottom: var(--spacing-8); }
.mb-12 { margin-bottom: var(--spacing-12); }
.mb-16 { margin-bottom: var(--spacing-16); }

.py-8 { padding-top: var(--spacing-8); padding-bottom: var(--spacing-8); }
.py-16 { padding-top: var(--spacing-16); padding-bottom: var(--spacing-16); }
.py-24 { padding-top: var(--spacing-24); padding-bottom: var(--spacing-24); }

/* -------------------------------------------------------------------------
   Color Utilities
   ------------------------------------------------------------------------- */
.text-primary { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-muted { color: var(--color-text-muted); }
.text-white { color: var(--color-white); }
.text-accent-red { color: var(--color-accent-red); }
.text-accent-blue { color: var(--color-accent-blue); }

.bg-white { background-color: var(--color-white); }
.bg-gray { background-color: var(--color-gray-bg); }
.bg-black { background-color: var(--color-black); }

/* -------------------------------------------------------------------------
   Print Styles
   ------------------------------------------------------------------------- */
@media print {
    *,
    *::before,
    *::after {
        background: transparent !important;
        color: #000 !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
    
    a,
    a:visited {
        text-decoration: underline;
    }
    
    a[href]::after {
        content: " (" attr(href) ")";
    }
    
    img {
        page-break-inside: avoid;
    }
    
    p,
    h2,
    h3 {
        orphans: 3;
        widows: 3;
    }
    
    h2,
    h3 {
        page-break-after: avoid;
    }
    
    nav,
    footer {
        display: none;
    }
}