/**
 * Layout - App structure, Sidebar, Header, Footer
 */

/* ==========================================
   App Container
   ========================================== */

#app {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    background-color: var(--color-bg-primary);
}

/* ==========================================
   Pages Container
   ========================================== */

.pages {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding-bottom: calc(var(--footer-height) + var(--safe-area-bottom));
}

.page {
    display: none;
    flex: 1;
    flex-direction: column;
}

.page.active {
    display: flex;
}

.page-content {
    flex: 1;
    padding: var(--space-4);
}

/* ==========================================
   MOBILE LAYOUT (default)
   ========================================== */

/* Mobile: Show footer, hide sidebar */
.sidebar {
    display: none;
}

.footer {
    display: flex;
}

/* ==========================================
   DESKTOP LAYOUT (768px+)
   ========================================== */

@media (min-width: 768px) {
    /* Desktop: Show sidebar, hide footer */
    .sidebar {
        display: flex;
    }

    .footer {
        display: none !important;
    }

    .pages {
        margin-left: var(--sidebar-width);
        padding-top: 0;
        padding-bottom: 0;
    }

    .page-content {
        padding: var(--space-6);
        max-width: 800px;
        margin: 0 auto;
        width: 100%;
    }
}

/* ==========================================
   Sidebar (Desktop)
   ========================================== */

.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--color-bg-secondary);
    border-right: 1px solid var(--color-border-light);
    flex-direction: column;
    z-index: var(--z-sidebar);
}

.sidebar-header {
    padding: var(--space-6) var(--space-5);
    border-bottom: 1px solid var(--color-border-light);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
}

.sidebar-logo svg {
    width: 32px;
    height: 32px;
    color: var(--color-accent);
}

/* Vault Selector */
.sidebar-vault {
    padding: var(--space-4) var(--space-4);
    border-bottom: 1px solid var(--color-border-light);
    position: relative;
}

.vault-selector {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2) var(--space-3);
    background: var(--color-bg-tertiary);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-family: var(--font-family);
    color: var(--color-text-primary);
    transition: background var(--transition-fast);
}

.vault-selector:hover {
    background: var(--color-border);
}

.vault-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    flex: 1;
    min-width: 0;
}

.vault-label {
    font-size: 10px;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.vault-name {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-xs);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 100%;
}

.vault-arrow {
    width: 20px;
    height: 20px;
    color: var(--color-text-muted);
    transition: transform var(--transition-fast);
    flex-shrink: 0;
}

.vault-selector.active .vault-arrow {
    transform: rotate(180deg);
}

/* Vault Dropdown */
.vault-dropdown {
    position: absolute;
    top: 100%;
    left: var(--space-4);
    right: var(--space-4);
    margin-top: var(--space-2);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--transition-fast);
    z-index: var(--z-dropdown);
    max-height: 320px;
    overflow-y: auto;
}

.vault-dropdown.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.vault-dropdown-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--color-border-light);
}

.vault-manage-btn {
    width: 24px;
    height: 24px;
    margin-left: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.vault-manage-btn:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-hover);
}

.vault-manage-btn svg {
    width: 16px;
    height: 16px;
}

.vault-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    padding: var(--space-2);
}

.vault-item {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-3);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--color-text-primary);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    text-align: left;
    transition: background var(--transition-fast);
    gap: var(--space-2);
}

.vault-item:hover {
    background: var(--color-bg-tertiary);
}

.vault-item.active {
    background: var(--color-accent-bg);
    color: var(--color-accent);
}

.vault-item-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.vault-item-check {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    opacity: 0;
}

.vault-item.active .vault-item-check {
    opacity: 1;
}

.add-vault-btn {
    width: 100%;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: transparent;
    border: none;
    border-top: 1px solid var(--color-border-light);
    cursor: pointer;
    color: var(--color-accent);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

.add-vault-btn:hover {
    background: var(--color-accent-bg);
}

.add-vault-btn svg {
    width: 16px;
    height: 16px;
}

/* Sidebar Add Button */
.sidebar-add {
    padding: var(--space-4);
    border-bottom: 1px solid var(--color-border-light);
}

.sidebar-add .add-btn-container {
    position: relative;
}

.sidebar-add .btn-add-new {
    justify-content: center;
}

.sidebar-add .add-menu {
    position: absolute;
    top: calc(100% + var(--space-2));
    left: 0;
    right: 0;
}

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: transparent;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    color: var(--color-text-secondary);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    text-align: left;
    width: 100%;
    transition: all var(--transition-fast);
}

.nav-item:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

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

.nav-item svg {
    width: 20px;
    height: 20px;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: var(--space-4);
    border-top: 1px solid var(--color-border-light);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-website) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    flex-shrink: 0;
    overflow: hidden;
}

.user-avatar.has-image {
    background: none;
}

.user-avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-info {
    flex: 1;
    min-width: 0;
}

.user-name {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-email {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Add Button */
.add-btn-container {
    position: relative;
}

.btn-add-new {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
    border-radius: var(--radius-lg);
}

.btn-add-new svg {
    width: 16px;
    height: 16px;
}

/* ==========================================
   Footer (Mobile)
   ========================================== */

.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: calc(var(--footer-height) + var(--safe-area-bottom));
    padding-bottom: var(--safe-area-bottom);
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border-light);
    align-items: center;
    justify-content: space-around;
    z-index: var(--z-footer);
}

.tab-bar {
    display: flex;
    width: 100%;
    justify-content: space-around;
    height: var(--footer-height);
    align-items: center;
}

.tab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-4);
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--color-text-muted);
    font-family: var(--font-family);
    transition: color var(--transition-fast);
}

.tab-item:hover,
.tab-item.active {
    color: var(--color-accent);
}

.tab-icon {
    width: 24px;
    height: 24px;
}

.tab-icon svg {
    width: 100%;
    height: 100%;
}

.tab-label {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
}