/* =========================================================
   ACCESSIBILITY & FOCUS SYSTEMS
========================================================= */

.skip-link {
    position: absolute;
    top: -100px;
    left: 10px;
    background: var(--primary);
    color: #fff;
    padding: 8px 16px;
    border-radius: 0 0 4px 4px;
    z-index: var(--z-max);
    transition: transform var(--transition-fast);
    text-decoration: none;
}

.skip-link:focus {
    transform: translateY(100px);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 4px;
}

body.light-mode *:focus-visible {
    outline: 2px solid var(--brand-blue);
}

body.reduced-motion *,
body.reduced-motion *::before,
body.reduced-motion *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
}

/* =========================================================
   LOADER CONTAINER
========================================================= */

.loader-wrapper {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    background: var(--bg-main);
    display: flex;
    align-items: center;
    justify-content: center;
    will-change: opacity, visibility;
    contain: strict;
    transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
}

.loader-wrapper.loader-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader {
    width: 50px;
    height: 50px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* =========================================================
   BASE BODY STYLES
========================================================= */

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-main);
    color: var(--text-white);
    overflow-x: hidden;
    padding-top: var(--header-height);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

body:not(.reduced-motion) {
    animation: fadeIn 0.5s ease;
}

/* =========================================================
   TYPOGRAPHY SCALING LAYER
========================================================= */

h1, h2, h3, h4, h5, h6 {
    font-family: 'Teko', sans-serif;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    line-height: 1;
    color: var(--text-white);
}

p {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-light);
}

.section-subtitle {
    display: block;
    margin-bottom: 16px;
    font-size: 20px;
    letter-spacing: 2px;
    font-weight: 1200;
    color: var(--accent);
    text-transform: uppercase;
}

/* =========================================================
   UTILITY INFRASTRUCTURE
========================================================= */

.container-custom {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

img {
    max-width: 100%;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
}

ul {
    list-style: none;
    margin: 0;
    padding: 0;
}