/**
 * DevilAndroid Mobile Layout System
 * Pure Mobile-First App Shell, Top App Bar, Bottom Dock Navigation, Off-Canvas Drawer
 * Zero desktop baggage, 100% optimized for phone touch & safe areas
 */

/* ==========================================================================
   Mobile App Shell
   ========================================================================== */
.da-shell {
    display: flex;
    flex-direction: column;
    width: 100%;
    min-height: 100vh;
    position: relative;
    background-color: var(--da-bg);
    overflow-x: hidden;
}

/* Main Content Area */
.da-main {
    width: 100%;
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding-bottom: calc(var(--da-bottom-nav-height) + var(--da-safe-bottom) + 24px);
}

.da-content {
    flex: 1;
    width: 100%;
    max-width: 100%;
    padding: 0 14px 20px 14px;
}

/* ==========================================================================
   Native Mobile Top Header (App Bar)
   ========================================================================== */
.da-header {
    position: sticky;
    top: 0;
    z-index: 1020;
    width: 100%;
    height: calc(var(--da-header-height) + var(--da-safe-top));
    padding-top: var(--da-safe-top);
    background-color: rgba(14, 21, 38, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(59, 130, 246, 0.18);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-left: 14px;
    padding-right: 14px;
}

.da-header-left {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.da-header-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

/* Brand Badge in Header */
.da-brand-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: -0.02em;
    color: var(--da-text);
    text-decoration: none;
}

.da-brand-icon {
    width: 34px;
    height: 34px;
    border-radius: var(--da-radius-md);
    background: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 17px;
    box-shadow: 0 4px 14px rgba(6, 182, 212, 0.4);
}

/* Mobile User Greeting Pill in Header */
.da-header-user-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--da-text);
    min-width: 0;
}

.da-header-greeting {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
    min-width: 0;
}

.da-header-greeting .greet-subtitle {
    font-size: 0.7rem;
    color: var(--da-text-muted);
    font-weight: 500;
}

.da-header-greeting .greet-title {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--da-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Header Live Balance Pill */
.da-header-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: var(--da-radius-full);
    background: rgba(59, 130, 246, 0.12);
    border: 1px solid rgba(59, 130, 246, 0.35);
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--da-accent);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
    text-decoration: none;
    transition: transform var(--da-transition-fast), background-color var(--da-transition-fast);
}

.da-header-pill i {
    font-size: 0.95rem;
    color: var(--da-accent-cyan);
}

.da-header-pill:active {
    transform: scale(0.95);
}

/* Icon Buttons (Min Touch Target 44px) */
.da-btn-icon {
    width: 42px;
    height: 42px;
    min-width: 42px;
    border-radius: var(--da-radius-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--da-border);
    color: var(--da-text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.15rem;
    transition: var(--da-transition-fast);
}

.da-btn-icon:hover {
    background: rgba(255, 255, 255, 0.09);
    color: var(--da-text);
    border-color: var(--da-border-strong);
}

.da-btn-icon:active {
    transform: scale(0.94);
}

/* Page Header in Main Content */
.da-page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0 12px 0;
    flex-wrap: wrap;
    gap: 8px;
}

.da-page-title-wrap {
    min-width: 0;
    flex: 1;
}

.da-page-title-wrap h1,
.da-page-title-wrap h2,
.da-page-title-wrap h3,
.da-page-title-wrap h4 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--da-text);
}

.da-page-subtitle {
    font-size: 0.8rem;
    color: var(--da-text-muted);
    margin-top: 2px;
    line-height: 1.35;
}

.da-page-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

/* ==========================================================================
   Mobile Bottom Navigation Dock (High-End Tactile Bar)
   ========================================================================== */
.da-bottom-nav {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1030;
    height: calc(var(--da-bottom-nav-height) + var(--da-safe-bottom));
    padding-bottom: var(--da-safe-bottom);
    background: rgba(14, 21, 38, 0.94);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 -6px 28px rgba(0, 0, 0, 0.65);
    align-items: center;
    justify-content: space-around;
    padding-left: 8px;
    padding-right: 8px;
}

.da-bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    color: var(--da-text-muted);
    text-decoration: none;
    font-size: 0.68rem;
    font-weight: 600;
    flex: 1;
    height: 100%;
    padding: 6px 0;
    transition: color var(--da-transition-fast), transform var(--da-transition-fast);
}

.da-bottom-nav-item i {
    font-size: 1.25rem;
    line-height: 1;
    transition: transform var(--da-transition-fast);
}

.da-bottom-nav-item.active {
    color: var(--da-accent);
}

.da-bottom-nav-item.active i {
    transform: translateY(-2px);
    color: var(--da-accent-cyan);
}

.da-bottom-nav-item:active {
    transform: scale(0.92);
}

/* Center Glowing Floating Action Button (FAB) */
.da-bottom-nav-fab {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    height: 100%;
    position: relative;
    text-decoration: none;
}

.da-bottom-nav-fab-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    box-shadow: 0 6px 22px rgba(6, 182, 212, 0.5), 0 0 0 4px var(--da-surface);
    transform: translateY(-13px);
    transition: transform var(--da-transition-fast), box-shadow var(--da-transition-fast);
}

.da-bottom-nav-fab:active .da-bottom-nav-fab-btn {
    transform: translateY(-10px) scale(0.92);
    box-shadow: 0 2px 10px rgba(6, 182, 212, 0.35);
}

.da-bottom-nav-fab span {
    font-size: 0.66rem;
    font-weight: 700;
    color: var(--da-text);
    margin-top: -8px;
    letter-spacing: -0.01em;
}

/* ==========================================================================
   Mobile Navigation Drawer (Off-Canvas Touch Drawer)
   ========================================================================== */
.da-sidebar-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1040;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--da-transition);
}

.da-sidebar-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}

.da-sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    width: min(86vw, 310px);
    z-index: 1050;
    transform: translateX(-100%);
    transition: transform var(--da-transition);
    background-color: var(--da-surface);
    border-right: 1px solid var(--da-border-strong);
    box-shadow: 8px 0 36px rgba(0, 0, 0, 0.8);
    display: flex;
    flex-direction: column;
}

.da-sidebar.show {
    transform: translateX(0);
}

.da-sidebar-header {
    height: calc(var(--da-header-height) + var(--da-safe-top));
    padding-top: var(--da-safe-top);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-left: 16px;
    padding-right: 16px;
    border-bottom: 1px solid var(--da-border);
    flex-shrink: 0;
}

.da-sidebar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--da-text);
    text-decoration: none;
}

.da-sidebar-brand .brand-logo-icon {
    width: 34px;
    height: 34px;
    border-radius: var(--da-radius-md);
    background: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: 0 4px 14px rgba(6, 182, 212, 0.4);
}

.da-sidebar-body {
    flex: 1;
    overflow-y: auto;
    padding: 12px 10px;
    -webkit-overflow-scrolling: touch;
}

.da-drawer-handle {
    width: 36px;
    height: 4px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.2);
    margin: 6px auto 12px;
}

.da-nav-group-title {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--da-text-muted);
    padding: 10px 12px 4px;
    user-select: none;
}

.da-sidebar-nav {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.da-nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 14px;
    border-radius: var(--da-radius-md);
    color: var(--da-text-secondary);
    font-size: 0.92rem;
    font-weight: 500;
    text-decoration: none;
    position: relative;
    min-height: 44px;
    transition: background var(--da-transition-fast), color var(--da-transition-fast), transform var(--da-transition-fast);
}

.da-nav-link i {
    font-size: 1.2rem;
    width: 22px;
    text-align: center;
    color: var(--da-text-muted);
    transition: color var(--da-transition-fast);
}

.da-nav-link:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--da-text);
}

.da-nav-link:hover i {
    color: var(--da-accent);
}

.da-nav-link:active {
    transform: scale(0.97);
}

.da-nav-link.active {
    background-color: var(--da-accent-surface);
    color: #fff;
    font-weight: 600;
}

.da-nav-link.active i {
    color: var(--da-accent-cyan);
}

.da-nav-link.active::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    bottom: 8px;
    width: 3.5px;
    border-radius: 0 4px 4px 0;
    background-color: var(--da-accent);
    box-shadow: 0 0 10px var(--da-accent);
}

/* User Card in Drawer Footer */
.da-sidebar-footer {
    padding: 12px 14px;
    border-top: 1px solid var(--da-border);
    flex-shrink: 0;
    background-color: rgba(0, 0, 0, 0.2);
    padding-bottom: calc(12px + var(--da-safe-bottom));
}

.da-sidebar-user {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--da-text);
}

.da-user-avatar {
    width: 38px;
    height: 38px;
    border-radius: var(--da-radius-md);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(6, 182, 212, 0.25));
    border: 1px solid rgba(59, 130, 246, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--da-accent);
    font-size: 15px;
    flex-shrink: 0;
    position: relative;
}

.da-user-avatar .status-dot {
    position: absolute;
    bottom: -1px;
    right: -1px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background-color: var(--da-success);
    border: 2px solid var(--da-surface);
}

.da-user-meta {
    flex: 1;
    min-width: 0;
    line-height: 1.25;
}

.da-user-name {
    font-size: 0.9rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.da-user-role {
    font-size: 0.72rem;
    color: var(--da-text-muted);
}

/* Footer in Main Content */
.da-footer {
    padding: 14px 16px;
    border-top: 1px solid var(--da-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.78rem;
    color: var(--da-text-muted);
    background-color: transparent;
    margin-top: auto;
}