/* ==============================================================================
   MediLink – Unified Healthcare Dashboard Stylesheet
   Modern, Mobile-First, Accessible Clinical Interoperability UI
   ============================================================================== */

/* --- Custom Dashboard Design Tokens --- */
:root {
    --ml-sidebar-width: 260px;
    --ml-header-height: 64px;
    --ml-mobile-header-height: 58px;
    --ml-bottom-nav-height: 60px;

    --ml-primary: #0F766E;
    --ml-primary-light: #14B8A6;
    --ml-primary-dark: #0D5F58;
    --ml-primary-subtle: rgba(15, 118, 110, 0.08);
    --ml-primary-border: rgba(15, 118, 110, 0.2);

    --ml-text-dark: #0F172A;
    --ml-text-body: #1E293B;
    --ml-text-muted: #64748B;
    --ml-text-light: #94A3B8;

    --ml-bg: #FFFFFF;
    --ml-bg-alt: #F8FAFC;
    --ml-bg-soft: #F1F5F9;
    --ml-border: #E2E8F0;
    --ml-border-subtle: #EDF2F7;
    
    --ml-radius-sm: 8px;
    --ml-radius: 12px;
    --ml-radius-lg: 16px;
    
    --ml-shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
    --ml-shadow-sm: 0 2px 5px rgba(15, 23, 42, 0.05);
    --ml-shadow-md: 0 4px 16px rgba(15, 23, 42, 0.07);
    --ml-shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.12);

    --ml-transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    --ml-tap-target: 44px;
}

/* --- Layout Shell --- */
body.ml-dashboard-body {
    background-color: var(--ml-bg-alt);
    color: var(--ml-text-body);
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.ml-dashboard-wrapper {
    display: flex;
    min-height: 100vh;
    min-height: 100dvh;
    position: relative;
    width: 100%;
}

/* --- Sidebar Navigation Shell --- */
.ml-sidebar {
    width: var(--ml-sidebar-width);
    background-color: var(--ml-bg);
    border-right: 1px solid var(--ml-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 1045;
    transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.28s ease;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    box-shadow: 2px 0 12px rgba(15, 23, 42, 0.03);
}

.ml-sidebar-header {
    height: var(--ml-header-height);
    display: flex;
    align-items: center;
    padding: 0 1.25rem;
    border-bottom: 1px solid var(--ml-border);
    flex-shrink: 0;
}

.ml-sidebar-header .ml-brand {
    min-width: 0;
}

.ml-sidebar-header .ml-logo-image {
    width: 96px;
    height: auto;
    aspect-ratio: 3 / 2;
    object-fit: contain;
}

/* User Badge in Sidebar */
.ml-sidebar-user {
    padding: 1rem 1.25rem;
    background: linear-gradient(180deg, #F8FAFC 0%, #F1F5F9 100%);
    border-bottom: 1px solid var(--ml-border);
    flex-shrink: 0;
}

.ml-sidebar-user .avatar-initials {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--ml-primary);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.95rem;
    flex-shrink: 0;
    box-shadow: 0 2px 6px rgba(15, 118, 110, 0.25);
}

.ml-sidebar-menu {
    padding: 0.85rem 0.65rem;
    flex: 1;
}

.ml-menu-header {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--ml-text-muted);
    padding: 0.6rem 0.75rem 0.25rem;
}

.ml-nav-link {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.65rem 0.85rem;
    border-radius: var(--ml-radius-sm);
    color: var(--ml-text-body);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    min-height: 42px;
    transition: var(--ml-transition);
    margin-bottom: 3px;
}

.ml-nav-link i {
    font-size: 1.2rem;
    color: var(--ml-text-muted);
    transition: color 0.15s ease;
    flex-shrink: 0;
}

.ml-nav-link:hover {
    background-color: var(--ml-primary-subtle);
    color: var(--ml-primary);
}

.ml-nav-link:hover i {
    color: var(--ml-primary);
}

.ml-nav-link.active {
    background-color: var(--ml-primary);
    color: #FFFFFF;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(15, 118, 110, 0.25);
}

.ml-nav-link.active i {
    color: #FFFFFF;
}

.ml-sidebar-footer {
    padding: 1rem 1.15rem;
    border-top: 1px solid var(--ml-border);
    background-color: var(--ml-bg);
    flex-shrink: 0;
}

/* Mobile Sidebar Backdrop */
.ml-sidebar-backdrop {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(15, 23, 42, 0.45);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 1040;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.ml-sidebar-backdrop.show {
    display: block;
    opacity: 1;
}

/* --- Main Layout Workspace --- */
.ml-main-content {
    flex: 1;
    margin-left: var(--ml-sidebar-width);
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 100vh;
    min-height: 100dvh;
    position: relative;
}

/* --- Top Header Bar --- */
.ml-topbar {
    height: var(--ml-header-height);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--ml-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 1020;
    box-shadow: var(--ml-shadow-xs);
}

.ml-topbar .page-title {
    font-size: clamp(0.95rem, 2.2vw, 1.15rem);
    font-weight: 700;
    color: var(--ml-text-dark);
    margin: 0;
    max-width: clamp(140px, 45vw, 400px);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Sidebar Toggle Button for Mobile */
#sidebarToggle {
    width: 40px;
    height: 40px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--ml-radius-sm);
    color: var(--ml-text-dark);
    border-color: var(--ml-border);
    transition: var(--ml-transition);
}

#sidebarToggle:hover,
#sidebarToggle:focus {
    background-color: var(--ml-bg-soft);
    color: var(--ml-primary);
}

/* Sidebar Close Button */
#sidebarClose {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--ml-text-muted);
    transition: var(--ml-transition);
}

#sidebarClose:hover {
    background-color: var(--ml-bg-soft);
    color: var(--ml-danger);
}

/* --- Academic Demo Role Toolbar --- */
.ml-demo-toolbar {
    background-color: #FFFBEB;
    border-bottom: 1px solid #FDE68A;
    color: #92400E;
    padding: 0.5rem 1.5rem;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.ml-demo-toolbar .role-pill-btn {
    padding: 0.25rem 0.75rem;
    font-size: 0.78rem;
    border-radius: var(--ml-radius-full);
    border: 1px solid #D97706;
    background: #FFFFFF;
    color: #92400E;
    text-decoration: none;
    font-weight: 600;
    transition: var(--ml-transition);
    display: inline-flex;
    align-items: center;
    min-height: 28px;
}

.ml-demo-toolbar .role-pill-btn.active,
.ml-demo-toolbar .role-pill-btn:hover {
    background-color: #D97706;
    color: #FFFFFF;
    box-shadow: 0 1px 4px rgba(217, 119, 6, 0.3);
}

/* --- Content Body --- */
.ml-page-body {
    padding: 1.75rem 1.5rem;
    flex: 1;
}

/* --- Summary Stat Cards --- */
.ml-stat-card {
    background: var(--ml-bg);
    border: 1px solid var(--ml-border);
    border-radius: var(--ml-radius);
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--ml-shadow-xs);
    transition: var(--ml-transition);
    height: 100%;
}

.ml-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--ml-shadow-md);
    border-color: rgba(15, 118, 110, 0.3);
}

.ml-stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--ml-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
}

.ml-stat-icon--teal {
    background-color: var(--ml-primary-subtle);
    color: var(--ml-primary);
}

.ml-stat-icon--blue {
    background-color: rgba(37, 99, 235, 0.08);
    color: #2563EB;
}

.ml-stat-icon--amber {
    background-color: rgba(217, 119, 6, 0.08);
    color: #D97706;
}

.ml-stat-icon--green {
    background-color: rgba(5, 150, 105, 0.08);
    color: #059669;
}

.ml-stat-val {
    font-size: 1.45rem;
    font-weight: 700;
    color: var(--ml-text-dark);
    line-height: 1.2;
}

.ml-stat-lbl {
    font-size: 0.85rem;
    color: var(--ml-text-muted);
    margin: 0;
    font-weight: 500;
}

/* --- Quick Action Cards --- */
.ml-action-card {
    background: var(--ml-bg);
    border: 1px solid var(--ml-border);
    border-radius: var(--ml-radius);
    padding: 1.35rem;
    text-decoration: none;
    color: var(--ml-text-body);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    height: 100%;
    box-shadow: var(--ml-shadow-xs);
    transition: var(--ml-transition);
}

.ml-action-card:hover {
    border-color: var(--ml-primary);
    transform: translateY(-3px);
    box-shadow: var(--ml-shadow-md);
    color: var(--ml-text-body);
}

.ml-action-card .action-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--ml-radius-sm);
    background-color: var(--ml-primary-subtle);
    color: var(--ml-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin-bottom: 0.25rem;
}

.ml-action-card .action-title {
    font-size: 1.02rem;
    font-weight: 600;
    color: var(--ml-text-dark);
    margin: 0;
}

.ml-action-card .action-desc {
    font-size: 0.86rem;
    color: var(--ml-text-muted);
    margin: 0;
    line-height: 1.5;
}

/* --- Section Card Container --- */
.ml-card {
    background: var(--ml-bg);
    border: 1px solid var(--ml-border);
    border-radius: var(--ml-radius);
    box-shadow: var(--ml-shadow-xs);
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.ml-card-header {
    padding: 1rem 1.35rem;
    border-bottom: 1px solid var(--ml-border);
    background-color: var(--ml-bg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.ml-card-title {
    font-size: 1.02rem;
    font-weight: 700;
    margin: 0;
    color: var(--ml-text-dark);
}

.ml-card-body {
    padding: 1.35rem;
}

/* --- Status Labels & Badges --- */
.ml-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.32rem 0.7rem;
    font-size: 0.78rem;
    font-weight: 600;
    border-radius: var(--ml-radius-full);
    line-height: 1;
}

.ml-badge-active,
.ml-badge-success {
    background-color: #ECFDF5;
    color: #065F46;
    border: 1px solid #A7F3D0;
}

.ml-badge-pending,
.ml-badge-warning {
    background-color: #FFFBEB;
    color: #92400E;
    border: 1px solid #FDE68A;
}

.ml-badge-danger,
.ml-badge-critical {
    background-color: #FEF2F2;
    color: #991B1B;
    border: 1px solid #FECACA;
}

.ml-badge-info {
    background-color: #EFF6FF;
    color: #1E40AF;
    border: 1px solid #BFDBFE;
}

.ml-badge-role {
    background-color: var(--ml-primary-subtle);
    color: var(--ml-primary-dark);
    border: 1px solid rgba(15, 118, 110, 0.25);
    text-transform: capitalize;
    font-weight: 600;
}

/* --- Tables --- */
.ml-table {
    margin-bottom: 0;
    font-size: 0.9rem;
    width: 100%;
}

.ml-table th {
    background-color: #F8FAFC;
    color: var(--ml-text-muted);
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 0.8rem 1rem;
    border-bottom: 1px solid var(--ml-border);
    white-space: nowrap;
}

.ml-table td {
    padding: 0.85rem 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--ml-border);
}

.ml-table tbody tr:hover {
    background-color: #F8FAFC;
}

/* Table Horizontal Scrolling Hint for Mobile */
.table-responsive {
    position: relative;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--ml-radius-sm);
}

/* --- Empty States --- */
.ml-empty-state {
    padding: 3.5rem 1.5rem;
    text-align: center;
}

.ml-empty-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background-color: var(--ml-bg-alt);
    color: var(--ml-text-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 1.15rem;
    border: 1px dashed var(--ml-border);
}

.ml-empty-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--ml-text-dark);
    margin-bottom: 0.35rem;
}

.ml-empty-desc {
    color: var(--ml-text-muted);
    font-size: 0.9rem;
    max-width: 440px;
    margin: 0 auto 1.35rem;
    line-height: 1.5;
}

/* --- Form Fields & Buttons --- */
.ml-form-label {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--ml-text-dark);
    margin-bottom: 0.35rem;
    display: block;
}

.ml-form-label .required-star {
    color: #DC2626;
    margin-left: 2px;
}

.ml-form-control {
    border: 1px solid var(--ml-border);
    border-radius: var(--ml-radius-sm);
    padding: 0.65rem 0.85rem;
    font-size: 1rem; /* 16px to prevent iOS auto-zoom */
    color: var(--ml-text-dark);
    min-height: var(--ml-tap-target);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.ml-form-control:focus {
    border-color: var(--ml-primary);
    box-shadow: var(--ml-focus);
    outline: none;
}

.ml-btn-primary {
    background-color: var(--ml-primary);
    border-color: var(--ml-primary);
    color: #FFFFFF;
    font-weight: 600;
    border-radius: var(--ml-radius-sm);
    padding: 0.6rem 1.25rem;
    min-height: var(--ml-tap-target);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 6px rgba(15, 118, 110, 0.2);
    transition: var(--ml-transition);
}

.ml-btn-primary:hover,
.ml-btn-primary:focus {
    background-color: var(--ml-primary-dark);
    border-color: var(--ml-primary-dark);
    color: #FFFFFF;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(15, 118, 110, 0.28);
}

.ml-btn-primary:active {
    transform: translateY(0) scale(0.98);
}

.ml-btn-outline {
    border: 1px solid var(--ml-border);
    background-color: var(--ml-bg);
    color: var(--ml-text-dark);
    font-weight: 500;
    border-radius: var(--ml-radius-sm);
    padding: 0.6rem 1.25rem;
    min-height: var(--ml-tap-target);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--ml-transition);
}

.ml-btn-outline:hover {
    background-color: var(--ml-bg-alt);
    border-color: #CBD5E1;
    color: var(--ml-text-dark);
}

/* --- Banner Notices --- */
.ml-notice-banner {
    background-color: #F0FDFA;
    border: 1px solid #CCFBF1;
    border-radius: var(--ml-radius);
    padding: 0.85rem 1.25rem;
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    color: #0F766E;
    line-height: 1.5;
}

.ml-notice-banner .notice-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
    margin-top: 1px;
}

/* --- Mobile Bottom Navigation Bar (< 992px) --- */
.ml-mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--ml-bottom-nav-height);
    background-color: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--ml-border);
    z-index: 1030;
    box-shadow: 0 -2px 10px rgba(15, 23, 42, 0.06);
    padding-bottom: env(safe-area-inset-bottom, 0px);
}

.ml-bottom-nav-container {
    display: flex;
    align-items: center;
    justify-content: space-around;
    height: 100%;
    max-width: 500px;
    margin: 0 auto;
}

.ml-bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--ml-text-muted);
    text-decoration: none;
    font-size: 0.72rem;
    font-weight: 500;
    padding: 0.35rem 0.5rem;
    border-radius: var(--ml-radius-sm);
    min-width: 54px;
    transition: var(--ml-transition);
}

.ml-bottom-nav-item i {
    font-size: 1.2rem;
    line-height: 1.2;
    margin-bottom: 2px;
}

.ml-bottom-nav-item:hover,
.ml-bottom-nav-item:focus {
    color: var(--ml-primary);
}

.ml-bottom-nav-item.active {
    color: var(--ml-primary);
    font-weight: 700;
}

.ml-bottom-nav-item.active i {
    transform: scale(1.1);
}

/* --- Responsive Adjustments & Mobile Optimization --- */
@media (max-width: 991.98px) {
    .ml-sidebar {
        width: min(300px, 86vw);
        transform: translateX(-100%);
        box-shadow: none;
        padding-top: env(safe-area-inset-top, 0px);
        padding-bottom: max(2rem, env(safe-area-inset-bottom, 20px));
    }

    .ml-sidebar.show {
        transform: translateX(0);
        box-shadow: 5px 0 35px rgba(15, 23, 42, 0.25);
    }

    .ml-main-content {
        margin-left: 0;
    }

    .ml-mobile-bottom-nav {
        display: block;
    }

    .ml-page-body {
        padding: 1.5rem 1.15rem;
        padding-bottom: calc(var(--ml-bottom-nav-height) + 1.5rem + env(safe-area-inset-bottom, 0px));
    }

    .ml-topbar {
        padding: 0 1rem;
    }

    /* Swipeable pill bar for role switcher on mobile */
    .ml-demo-toolbar {
        padding: 0.5rem 1rem;
    }

    .ml-demo-toolbar .d-flex.align-items-center.gap-1 {
        width: 100%;
        overflow-x: auto;
        white-space: nowrap;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        padding: 3px 0;
    }

    .ml-demo-toolbar .d-flex.align-items-center.gap-1::-webkit-scrollbar {
        display: none;
    }
}

@media (max-width: 575.98px) {
    .ml-topbar {
        height: var(--ml-mobile-header-height);
        padding: 0 0.85rem;
    }

    .ml-topbar .page-title {
        font-size: 1rem;
        max-width: 170px;
    }

    .ml-page-body {
        padding: 1.15rem 0.85rem;
        padding-bottom: calc(var(--ml-bottom-nav-height) + 1.25rem + env(safe-area-inset-bottom, 0px));
    }

    .ml-card-header {
        padding: 0.85rem 1rem;
    }

    .ml-card-body {
        padding: 1rem;
    }

    .ml-table {
        min-width: 560px;
    }

    .ml-stat-card {
        padding: 0.95rem;
        gap: 0.75rem;
    }

    .ml-stat-icon {
        width: 42px;
        height: 42px;
        font-size: 1.25rem;
    }

    .ml-stat-val {
        font-size: 1.25rem;
    }

    .ml-stat-lbl {
        font-size: 0.78rem;
    }

    .ml-sidebar-header {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .ml-sidebar-header .ml-logo-image {
        width: 84px;
    }

    /* Footer adjustments on mobile */
    footer.py-3.px-4 {
        padding-left: 1rem !important;
        padding-right: 1rem !important;
        padding-bottom: calc(var(--ml-bottom-nav-height) + 1rem) !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}