/* ============================================================================
 * CONTAINER COMPONENT STYLES
 * Layout containers, content areas, and structural elements
 * ============================================================================ */

/* ========================================
 * MAIN CONTAINER
 * Primary application container
 * ======================================== */

.main-container {
    width: 100vw;
    height: 100vh;
    position: relative;
    overflow: hidden;
    background-color: var(--background-color, #f5f5f5);
    box-sizing: border-box;
}

.main-container.math-app-container {
    width: 100vw;
    height: 100vh;
    background-color: var(--background-color, #f5f5f5);
    position: relative;
    overflow: hidden;
}

/* ========================================
 * LAYOUT CONTAINERS
 * Structural layout containers
 * ======================================== */

.footer-container {
    position: absolute;
    z-index: var(--z-content);
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.left-sidebar-container {
    position: absolute;
    z-index: var(--z-content);
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.right-sidebar-container {
    position: absolute;
    z-index: var(--z-content);
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.main-content-container {
    position: absolute;
    z-index: var(--z-content);
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.full-content-container {
    position: absolute;
    z-index: var(--z-content);
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ========================================
 * MODAL CONTAINER
 * Modal and overlay containers
 * ======================================== */

.modal-center-container {
    position: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-elevated);
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ========================================
 * CENTER CONTAINER
 * Page-specific center containers
 * ======================================== */

.center-container {
    position: absolute;
    z-index: var(--z-content);
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: 20px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.center-container-page2 {
    position: absolute;
    z-index: var(--z-content);
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: 20px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ========================================
 * INSTRUCTION CONTAINERS
 * Instruction and guidance containers
 * ======================================== */

.instruction-box-page2 {
    position: absolute;
    z-index: var(--z-content);
    font-size: 35px;
    text-align: center;
    color: #ffffff;
    background-color: transparent;
    padding: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
    margin: 0;
}

.instruction-header[data-grid-position] {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    pointer-events: auto;
    user-select: text;
    -webkit-user-select: text;
    white-space: normal;
    overflow: visible;
    word-wrap: break-word;
    position: absolute;
    z-index: var(--z-notification);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ========================================
 * TAP ANIMATION CONTAINERS
 * Animation and visual effect containers
 * ======================================== */

.tap-animation-page2-1,
.tap-animation-page2-2 {
    position: absolute;
    z-index: var(--z-overlay);
    background-image: url(assets/tap.gif);
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    pointer-events: none;
    background-color: transparent;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.tap-animation-page2-1 {
    display: block;
}

.tap-animation-page2-2 {
    display: none;
}

/* ========================================
 * CONTAINER STATES
 * Different states for containers
 * ======================================== */

.container.hidden {
    display: none !important;
}

.container.visible {
    display: flex !important;
    visibility: visible !important;
}

.container.disabled {
    opacity: 0.5;
    pointer-events: none;
}

/* ========================================
 * CONTAINER RESPONSIVE DESIGN
 * Responsive adjustments for containers
 * ======================================== */

/* Media queries removed - using coordinate and gc system for responsiveness */