/* ==========================================================================
   CORE LAYOUT & UTILITIES
   ========================================================================== */

/* Main layout wrapper */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 5vw, 5rem);
}

/* Visibility states for loading transitions */
.loading-hidden {
    opacity: 0;
    transition: opacity 0.5s ease;
}

body:not(.loading) .loading-hidden {
    opacity: 1;
}

/* Base structural wrappers */
main {
    position: relative;
    z-index: 2;
}

/* Page Loader styling */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    background-color: var(--color-bg-primary);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.8s var(--ease-premium), visibility 0.8s var(--ease-premium);
}

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

.loader-spinner {
    width: 40px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    border-top-color: var(--color-accent-purple);
    animation: spin 1s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}

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

/* Global Helper Classes */
.overflow-hidden {
    overflow: hidden;
}

.flex {
    display: flex;
}

.grid {
    display: grid;
}

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

.justify-between {
    justify-content: space-between;
}