/* ==========================================================================
   Layout Styles
   .app-container, .app-header, .header-content, .main-content, .app-footer,
   .screen, .screen.active
   ========================================================================== */

/* App Container */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.app-header {
    background: var(--color-surface);
    padding: var(--spacing-lg) var(--spacing-xl);
    text-align: center;
    border-bottom: 1px solid var(--color-border);
}

.app-header h1 {
    margin: 0;
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-text);
}

.app-header .subtitle {
    margin: var(--spacing-xs) 0 0;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: var(--spacing-xl);
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

/* Screens */
.screen {
    display: none;
}

.screen.active {
    display: block;
}

/* Footer */
.app-footer {
    background: var(--color-surface);
    padding: var(--spacing-md) var(--spacing-xl);
    text-align: center;
    border-top: 1px solid var(--color-border);
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.app-footer p {
    margin: 0;
}

/* Header with auth */
.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.header-title {
    flex: 1;
}

.header-title h1 {
    margin: 0;
}

.header-title .subtitle {
    margin: 0;
}

.header-auth {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.account-info-header {
    display: flex;
    align-items: center;
}

#account-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* Footer Buttons */
.footer-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-sm);
    flex-wrap: wrap;
}

/* Progression Status Bar */
.progression-status {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-sm) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    z-index: 100;
}

.progression-completions {
    color: var(--color-text);
    font-weight: 500;
}

.progression-completions span {
    color: var(--color-primary);
    font-weight: 600;
}

.progression-next-unlock {
    color: var(--color-text-muted);
}

.progression-next-unlock .unlock-progress {
    color: var(--color-primary);
    font-weight: 500;
}