/* App Wrapper */
.app-wrapper {
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
}

/* Top Bar */
.top-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--top-bar-height);
    background: var(--color-bg-card);
    border-bottom: 1px solid var(--color-border);
    z-index: var(--z-header);
    box-shadow: var(--shadow-sm);
}

.top-bar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 var(--spacing-md);
    max-width: 600px;
    margin: 0 auto;
}

.app-logo-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.app-logo {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.app-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
}

.icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-secondary);
    transition: all var(--transition-fast);
}

.icon-btn:active {
    transform: scale(0.95);
    background: var(--color-bg-hover);
}

.theme-icon {
    font-size: 1.25rem;
}

/* Content Area */
.content-area {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    padding-top: 0px;
    padding-bottom: calc(60px + var(--safe-area-bottom) + var(--spacing-md));
}

/* Page Content */
.page-content {
    display: none;
    height: 100%;
}

.page-content.active {
    display: flex;
    flex-direction: column;
}

/* Top Tabs */
.top-tabs {
    display: flex;
    background: var(--color-bg-card);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: var(--top-bar-height);
    z-index: 10;
    box-shadow: var(--shadow-sm);
}

.top-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    color: var(--color-text-secondary);
    background: transparent;
    border-bottom: 3px solid transparent;
    transition: all var(--transition-fast);
    font-weight: var(--font-weight-medium);
}

.top-tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.top-tab:active {
    background: var(--color-bg-hover);
}

.top-tab-icon {
    font-size: 1.25rem;
}

.top-tab-label {
    font-size: var(--font-size-sm);
}

/* Section Content */
.section-content {
    display: none;
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    max-width: 600px;
    padding-top: 70px;
    width: 100%;
    margin: 0 auto;
}

.section-content.active {
    display: block;
}



/* Time Slots */
.time-slots {
    display: grid;
    gap: var(--spacing-md);
}

.time-slot-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
    border: 1px solid var(--color-border);
    text-align: left;
}

.time-slot-card:active {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.time-slot-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.time-slot-icon {
    font-size: 1.5rem;
}

.time-slot-time {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
}

.time-slot-food {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Guide Content */
.guide-content {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.guide-content h3 {
    color: var(--color-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-base);
}

.guide-content h3:first-child {
    margin-top: 0;
}

.guide-content p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.guide-content ul,
.guide-content ol {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.empty-state {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-state p {
    color: var(--color-text-muted);
    font-size: var(--font-size-base);
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-bg-card);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-around;
    align-items: stretch;
    padding-bottom: var(--safe-area-bottom);
    z-index: var(--z-nav);
    box-shadow: var(--shadow-nav);
}

.nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    padding: 0.625rem 0.5rem;
    min-height: 60px;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
    position: relative;
    background: transparent;
}

.nav-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 32px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 0 0 3px 3px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.nav-item.active {
    color: var(--color-primary);
}

.nav-item.active::before {
    opacity: 1;
}

.nav-item:active {
    background: var(--color-bg-hover);
}

.nav-icon {
    font-size: 1.5rem;
    line-height: 1;
    transition: transform var(--transition-fast);
}

.nav-item.active .nav-icon {
    transform: scale(1.15);
}

.nav-label {
    font-size: 0.6875rem;
    font-weight: var(--font-weight-medium);
    line-height: 1.2;
    white-space: nowrap;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal);
    animation: fadeIn 0.2s ease;
}

.modal.active {
    display: flex;
    align-items: flex-end;
}

.modal-content {
    background: var(--color-bg-card);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    animation: slideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.modal-close {
    position: sticky;
    top: 0;
    right: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: var(--spacing-md) var(--spacing-md) 0 auto;
    z-index: 1;
}

.modal-close:active {
    background: var(--color-bg-hover);
}

.modal-body {
    padding: 0 var(--spacing-lg) var(--spacing-xl) var(--spacing-lg);
}

.modal-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.modal-icon {
    font-size: 2.5rem;
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
}

.modal-section {
    margin-bottom: var(--spacing-lg);
}

.modal-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
}

.modal-text {
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    line-height: 1.6;
}

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

@keyframes slideUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

/* Guide Header */
.guide-header {
    margin-bottom: var(--spacing-lg);
}