/* ============================================================
   MediTriage AI - Design System
   Premium medical triage interface
   ============================================================ */

/* --- CSS Variables --- */
:root {
    /* Professional Medical Palette */
    --primary: #0e4d92;
    /* Royal Blue */
    --primary-dark: #0a366b;
    --secondary: #00b4d8;
    /* Medical Cyan */
    --primary-gradient: linear-gradient(135deg, #0e4d92 0%, #00b4d8 100%);
    --accent: #f59e0b;
    /* Amber for attention */

    /* Status Colors */
    --success: #10b981;
    --success-light: #ecfdf5;
    --danger: #ef4444;
    --danger-light: #fef2f2;
    --warning: #f59e0b;
    --warning-light: #fffbeb;
    --info: #3b82f6;
    --info-light: #eff6ff;

    /* Neutrals */
    --dark: #0f172a;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e0;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;

    /* UI Scale */
    --border-radius: 8px;
    /* Sharper */
    --border-radius-sm: 4px;
    --border-radius-lg: 12px;

    /* Elevation */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
    --transition: all 0.2s ease-in-out;
}

/* --- Base --- */
* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

/* --- Navbar --- */
.mt-navbar {
    background: #fff;
    padding: 0;
    box-shadow: var(--shadow-sm);
    border-bottom: 3px solid var(--primary);
}

.mt-navbar .navbar-brand {
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--primary) !important;
    letter-spacing: -0.5px;
}

.mt-navbar .navbar-brand i {
    margin-right: 8px;
    color: var(--secondary);
}

.mt-navbar .nav-link {
    color: var(--gray-600) !important;
    font-weight: 500;
    transition: var(--transition);
    padding: 0.7rem 1rem !important;
}

.mt-navbar .nav-link:hover,
.mt-navbar .nav-link.active {
    color: var(--primary) !important;
    background: var(--info-light);
    border-radius: var(--border-radius-sm);
}

.mt-lang-toggle .btn {
    border: 1px solid rgba(255, 255, 255, 0.4);
    color: #fff;
    font-size: 0.85rem;
    padding: 4px 12px;
    border-radius: 20px;
}

.mt-lang-toggle .btn:hover,
.mt-lang-toggle .btn.active {
    background: rgba(255, 255, 255, 0.25);
    border-color: #fff;
    color: #fff;
}

/* --- Cards --- */
.mt-card {
    background: #fff;
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    overflow: hidden;
}

.mt-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.mt-card .card-header {
    background: var(--primary-gradient);
    color: #fff;
    font-weight: 600;
    border: none;
    padding: 1rem 1.25rem;
}

.mt-card .card-body {
    padding: 1.5rem;
}

/* --- Stat Cards (Dashboard) --- */
.mt-stat-card {
    background: #fff;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.mt-stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
}

.mt-stat-card.primary::before {
    background: var(--primary);
}

.mt-stat-card.success::before {
    background: var(--success);
}

.mt-stat-card.warning::before {
    background: var(--warning);
}

.mt-stat-card.danger::before {
    background: var(--danger);
}

.mt-stat-card.info::before {
    background: var(--info);
}

.mt-stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.mt-stat-card .stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.mt-stat-card .stat-icon.primary {
    background: rgba(102, 126, 234, 0.12);
    color: var(--primary);
}

.mt-stat-card .stat-icon.success {
    background: rgba(16, 185, 129, 0.12);
    color: var(--success);
}

.mt-stat-card .stat-icon.warning {
    background: rgba(245, 158, 11, 0.12);
    color: var(--warning);
}

.mt-stat-card .stat-icon.danger {
    background: rgba(239, 68, 68, 0.12);
    color: var(--danger);
}

.mt-stat-card .stat-icon.info {
    background: rgba(59, 130, 246, 0.12);
    color: var(--info);
}

.mt-stat-card .stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark);
}

.mt-stat-card .stat-label {
    font-size: 0.85rem;
    color: var(--gray-500);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* --- Buttons --- */
.btn-mt-primary {
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: var(--border-radius-sm);
    padding: 0.6rem 1.5rem;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.btn-mt-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
    color: #fff;
}

.btn-mt-outline {
    background: #fff;
    color: var(--primary);
    border: 1px solid var(--primary);
    border-radius: var(--border-radius-sm);
    padding: 0.55rem 1.5rem;
    font-weight: 600;
    transition: var(--transition);
}

.btn-mt-outline:hover {
    background: var(--info-light);
    color: var(--primary-dark);
    border-color: var(--primary-dark);
}

/* --- Forms --- */
.mt-form-control {
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    padding: 0.65rem 1rem;
    font-size: 1rem;
    transition: var(--transition);
    background: #fff;
}

.mt-form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
    outline: none;
}

.mt-form-label {
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.4rem;
    font-size: 0.9rem;
}

/* --- Chat Interface --- */
.mt-chat-container {
    max-height: 55vh;
    overflow-y: auto;
    padding: 1.5rem;
    background: var(--gray-50);
    border-radius: var(--border-radius);
    scroll-behavior: smooth;
}

.mt-chat-bubble {
    max-width: 80%;
    padding: 0.9rem 1.2rem;
    margin-bottom: 1rem;
    border-radius: var(--border-radius);
    position: relative;
    animation: fadeSlideIn 0.3s ease;
    line-height: 1.5;
    font-size: 0.95rem;
}

.mt-chat-bubble.ai {
    background: #fff;
    color: var(--gray-800);
    border: 1px solid var(--gray-200);
    margin-right: auto;
    border-bottom-left-radius: 4px;
    box-shadow: var(--shadow-sm);
}

.mt-chat-bubble.user {
    background: var(--primary-gradient);
    color: #fff;
    margin-left: auto;
    border-bottom-right-radius: 4px;
}

.mt-chat-bubble .bubble-time {
    font-size: 0.7rem;
    opacity: 0.6;
    margin-top: 6px;
    display: block;
}

.mt-typing-indicator {
    display: flex;
    gap: 5px;
    padding: 0.8rem 1.2rem;
    background: #fff;
    border-radius: var(--border-radius);
    width: fit-content;
    border: 1px solid var(--gray-200);
}

.mt-typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--gray-400);
    border-radius: 50%;
    animation: typingBounce 1.4s infinite;
}

.mt-typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.mt-typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

/* --- Chat Input --- */
.mt-chat-input-area {
    background: #fff;
    border-top: 1px solid var(--gray-200);
    padding: 1rem 1.25rem;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.mt-chat-input {
    border: 2px solid var(--gray-200);
    border-radius: 24px;
    padding: 0.7rem 1.2rem;
    resize: none;
    transition: var(--transition);
}

.mt-chat-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.12);
}

.mt-chat-send {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary-gradient);
    border: none;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.mt-chat-send:hover {
    transform: scale(1.1);
}

/* --- Progress Bar --- */
.mt-progress {
    height: 8px;
    border-radius: 4px;
    background: var(--gray-200);
    overflow: hidden;
}

.mt-progress-bar {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: 4px;
    transition: width 0.5s ease;
}

/* --- Option Buttons (Chat) --- */
.mt-option-btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    margin: 0.25rem;
    border: 2px solid var(--primary);
    border-radius: 24px;
    color: var(--primary);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
    background: #fff;
}

.mt-option-btn:hover,
.mt-option-btn.selected {
    background: var(--primary);
    color: #fff;
}

/* --- Diagnosis Results --- */
.mt-diagnosis-card {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 1.25rem;
    margin-bottom: 1rem;
    transition: var(--transition);
    position: relative;
}

.mt-diagnosis-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

.mt-diagnosis-card .rank-badge {
    position: absolute;
    top: -10px;
    left: 16px;
    background: var(--primary-gradient);
    color: #fff;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
}

.mt-prob-bar {
    height: 10px;
    border-radius: 5px;
    background: var(--gray-100);
    overflow: hidden;
}

.mt-prob-bar .fill {
    height: 100%;
    border-radius: 5px;
    transition: width 1s ease;
}

.mt-prob-bar .fill.high {
    background: var(--danger);
}

.mt-prob-bar .fill.moderate {
    background: var(--warning);
}

.mt-prob-bar .fill.low {
    background: var(--success);
}

/* --- Tables --- */
.mt-table {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.mt-table thead th {
    background: var(--gray-100);
    color: var(--gray-700);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: none;
    padding: 0.9rem 1rem;
}

.mt-table tbody td {
    padding: 0.85rem 1rem;
    vertical-align: middle;
    border-color: var(--gray-100);
}

.mt-table tbody tr:hover {
    background: rgba(102, 126, 234, 0.04);
}

/* --- Badge --- */
.mt-badge {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
}

.mt-badge.emergency {
    background: var(--danger-light);
    color: var(--danger);
}

.mt-badge.urgent {
    background: var(--warning-light);
    color: var(--warning);
}

.mt-badge.routine {
    background: var(--success-light);
    color: var(--success);
}

.mt-badge.info {
    background: var(--info-light);
    color: var(--info);
}

/* --- Sidebar (Doctor/Admin) --- */
.mt-sidebar {
    background: var(--dark);
    min-height: 100vh;
    width: 260px;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1040;
    transition: var(--transition);
    overflow-y: auto;
}

.mt-sidebar .sidebar-brand {
    padding: 1.25rem;
    color: #fff;
    font-weight: 700;
    font-size: 1.2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mt-sidebar .nav-item .nav-link {
    color: rgba(255, 255, 255, 0.65);
    padding: 0.75rem 1.25rem;
    font-size: 0.9rem;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.mt-sidebar .nav-item .nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
    border-left-color: var(--primary);
}

.mt-sidebar .nav-item .nav-link.active {
    color: #fff;
    background: rgba(102, 126, 234, 0.15);
    border-left-color: var(--primary);
}

.mt-sidebar .nav-link i {
    width: 24px;
    text-align: center;
    margin-right: 10px;
}

.mt-main-content {
    margin-left: 260px;
    padding: 2rem;
    min-height: 100vh;
}

/* --- Login Page --- */
.mt-login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    padding: 2rem;
}

.mt-login-card {
    background: #fff;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 440px;
    width: 100%;
    padding: 2.5rem;
}

.mt-login-card .login-logo {
    text-align: center;
    margin-bottom: 1.5rem;
}

.mt-login-card .login-logo i {
    font-size: 3rem;
    color: var(--primary);
}

.mt-login-card .login-title {
    text-align: center;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.mt-login-card .login-subtitle {
    text-align: center;
    color: var(--gray-500);
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

/* --- OTP Input --- */
.mt-otp-inputs {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin: 1.5rem 0;
}

.mt-otp-inputs input {
    width: 48px;
    height: 56px;
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.mt-otp-inputs input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
    outline: none;
}

/* --- Prescription --- */
.mt-prescription {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    max-width: 800px;
    margin: 0 auto;
}

.mt-prescription-header {
    background: var(--primary-gradient);
    color: #fff;
    padding: 1.5rem;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.mt-prescription .rx-symbol {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    font-family: serif;
}

.mt-prescription table {
    width: 100%;
}

.mt-prescription table th {
    background: var(--gray-50);
    font-size: 0.85rem;
}

/* --- Treatment Tabs --- */
.mt-treatment-tabs .nav-link {
    border: none;
    padding: 0.7rem 1.2rem;
    font-weight: 600;
    color: var(--gray-500);
    border-bottom: 3px solid transparent;
    transition: var(--transition);
}

.mt-treatment-tabs .nav-link.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
    background: transparent;
}

.mt-treatment-tabs .nav-link i {
    margin-right: 6px;
}

/* --- Disclaimer --- */
.legal-disclaimer {
    border-radius: var(--border-radius-sm) !important;
}

/* --- Hero Section --- */
.mt-hero {
    background: linear-gradient(rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.8)), url('https://images.unsplash.com/photo-1576091160399-112ba8d25d1d?ixlib=rb-1.2.1&auto=format&fit=crop&w=1950&q=80');
    background-size: cover;
    background-position: center;
    color: #fff;
    padding: 6rem 0;
    position: relative;
}

.mt-hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -1px;
}

.mt-hero p {
    font-size: 1.15rem;
    opacity: 0.9;
    max-width: 600px;
    font-weight: 400;
}

/* --- Feature Cards --- */
.mt-feature-card {
    background: #fff;
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    height: 100%;
}

.mt-feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.mt-feature-card .feature-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: rgba(102, 126, 234, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    font-size: 1.8rem;
    color: var(--primary);
}

.mt-feature-card h5 {
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.mt-feature-card p {
    color: var(--gray-500);
    font-size: 0.92rem;
}

/* --- Loading Overlay --- */
.mt-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.85);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(4px);
}

.mt-loading-overlay.active {
    display: flex;
}

.mt-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* --- Toast Notification --- */
.mt-toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 10000;
}

.mt-toast {
    background: #fff;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-md);
    padding: 1rem 1.25rem;
    margin-bottom: 0.5rem;
    min-width: 300px;
    animation: slideInRight 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    border-left: 4px solid var(--primary);
}

.mt-toast.success {
    border-left-color: var(--success);
}

.mt-toast.error {
    border-left-color: var(--danger);
}

.mt-toast.warning {
    border-left-color: var(--warning);
}

/* --- Emergency Banner --- */
.mt-emergency-banner {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: #fff;
    padding: 1rem;
    text-align: center;
    font-weight: 600;
    animation: emergencyPulse 2s infinite;
}

/* --- Footer --- */
.mt-footer {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 2rem 0;
    font-size: 0.9rem;
}

.mt-footer a {
    color: rgba(255, 255, 255, 0.85);
}

.mt-footer a:hover {
    color: #fff;
}

/* --- Animations --- */
@keyframes fadeSlideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes typingBounce {

    0%,
    60%,
    100% {
        transform: translateY(0);
    }

    30% {
        transform: translateY(-8px);
    }
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes emergencyPulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.85;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* --- Utility --- */
.fade-in {
    animation: fadeIn 0.5s ease;
}

.text-gradient {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.border-gradient {
    border-image: var(--primary-gradient) 1;
}

/* --- Print Styles --- */
@media print {

    .mt-navbar,
    .mt-sidebar,
    .mt-footer,
    .no-print,
    .mt-chat-input-area,
    .btn {
        display: none !important;
    }

    .mt-main-content {
        margin-left: 0 !important;
        padding: 0 !important;
    }

    .mt-prescription {
        box-shadow: none;
        border: 1px solid #ccc;
    }

    body {
        background: #fff;
    }
}

/* --- Responsive --- */
@media (max-width: 992px) {
    .mt-sidebar {
        transform: translateX(-100%);
    }

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

    .mt-main-content {
        margin-left: 0;
        padding: 1rem;
    }

    .mt-hero h1 {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .mt-chat-bubble {
        max-width: 90%;
    }

    .mt-login-card {
        padding: 1.5rem;
    }

    .mt-otp-inputs input {
        width: 42px;
        height: 48px;
        font-size: 1.2rem;
    }

    .mt-stat-card {
        padding: 1rem;
    }

    .mt-stat-card .stat-value {
        font-size: 1.5rem;
    }

    .mt-hero {
        padding: 3rem 0;
    }
}

@media (max-width: 576px) {
    .mt-hero h1 {
        font-size: 1.6rem;
    }

    .mt-hero p {
        font-size: 1rem;
    }

    .mt-feature-card {
        padding: 1.25rem;
    }
}

/* --- Accessibility --- */
:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 2px;
}

.skip-link {
    position: absolute;
    top: -100%;
    left: 0;
    background: var(--primary);
    color: #fff;
    padding: 0.5rem 1rem;
    z-index: 10001;
}

.skip-link:focus {
    top: 0;
}