@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/icon?family=Material+Icons+Round');

:root {
    --surface: #f8f9fb;
    --surface-container-lowest: #ffffff;
    --surface-container: #edeef0;
    --surface-container-high: #e7e8ea;
    --on-surface: #191c1e;
    --on-surface-variant: #434654;
    --outline: #737685;
    --outline-variant: #c3c6d6;
    
    --primary: #003d9b;
    --on-primary: #ffffff;
    --primary-container: #0052cc;
    --on-primary-container: #c4d2ff;
    
    --secondary: #285ab9;
    --tertiary: #004483;
    
    --error: #ba1a1a;
    --on-error: #ffffff;
    --error-container: #ffdad6;
    
    --success-bg: #e6f4ea;
    --success-text: #1e4620;
    --warning-bg: #fef7e0;
    --warning-text: #664d03;
    --error-bg: #fce8e6;
    --error-text: #c5221f;
    --info-bg: #e6f0ff;
    --info-text: #003d9b;
    
    --font-main: 'Inter', sans-serif;
    
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--font-main);
    background-color: var(--surface);
    color: var(--on-surface);
    font-size: 14px;
    line-height: 1.5;
}

.app-container { display: flex; min-height: 100vh; }

/* ==========================================
   SIDEBAR STYLES (Desktop Icon-Only, Mobile Drawer)
   ========================================== */

/* Base Sidebar Setup */
.sidebar {
    width: 240px; /* Default width for mobile drawer */
    background-color: var(--primary);
    color: white;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

/* Logo Styling */
.sidebar-brand img {
    max-width: 45px;
    max-height: 45px;
    border-radius: 8px;
    object-fit: contain;
    background: white; /* Gives a clean background to transparent logos */
    padding: 4px;
}

.sidebar-brand .material-icons-round {
    font-size: 36px;
}

.sidebar-subtitle {
    font-size: 10px;
    opacity: 0.7;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 8px;
}

.nav-menu {
    list-style: none;
    padding: 16px 0;
    margin: 0;
    flex: 1;
    width: 100%;
}

.nav-item { margin-bottom: 4px; }

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.nav-link:hover, .nav-link.active {
    background-color: rgba(255,255,255,0.1);
    color: white;
    border-left-color: white;
}

.nav-link .material-icons-round { font-size: 20px; }

.sidebar-footer {
    padding: 16px 0;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* ==========================================
   DESKTOP: Minimized Icon-Only Sidebar (80px)
   ========================================== */
@media (min-width: 769px) {
    .sidebar {
        width: 80px; /* Minimized width */
        align-items: center;
    }
    
    .main-content {
        margin-left: 80px; /* Match the minimized width */
    }

    .sidebar-header {
        padding: 20px 10px;
        width: 100%;
    }

    .sidebar-brand img {
        max-width: 40px;
        max-height: 40px;
    }

    .sidebar-subtitle {
        display: none; /* Hide subtitle on desktop to save vertical space */
    }

    .nav-link {
        flex-direction: column;
        justify-content: center;
        align-items: center;
        padding: 14px 0;
        gap: 4px;
        border-left: none;
        border-right: 3px solid transparent;
        font-size: 10px;
        text-align: center;
    }

    .nav-link:hover, .nav-link.active {
        border-left: none;
        border-right-color: white;
    }

    .nav-link .material-icons-round {
        font-size: 22px;
        margin: 0;
    }

    /* Hide the text label on desktop, rely on the icon and the HTML 'title' tooltip */
    .nav-text {
        display: none; 
    }
}

/* ==========================================
   MOBILE: Full-Width Drawer (240px)
   ========================================== */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block; /* Show hamburger icon */
    }

    .sidebar {
        width: 240px; /* Wider for readability on mobile */
        transform: translateX(-100%); /* Hidden off-screen by default */
        align-items: stretch;
    }
    
    .sidebar.active {
        transform: translateX(0); /* Slides in when toggled */
    }

    .sidebar-overlay.active {
        display: block;
    }

    .sidebar-header {
        flex-direction: row;
        justify-content: flex-start;
        padding: 20px;
        text-align: left;
    }

    .sidebar-brand {
        justify-content: flex-start;
    }

    .sidebar-brand img {
        max-width: 36px;
        max-height: 36px;
    }

    .sidebar-subtitle {
        display: block;
        margin-top: 0;
        margin-left: 10px;
    }

    .nav-link {
        flex-direction: row;
        justify-content: flex-start;
        padding: 12px 20px;
        border-right: none;
        border-left: 3px solid transparent;
        font-size: 14px;
    }

    .nav-link:hover, .nav-link.active {
        border-right: none;
        border-left-color: white;
    }

    .nav-text {
        display: inline; /* Show text on mobile */
    }

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

/* Hamburger Button (Hidden on desktop) */
.mobile-menu-toggle {
    display: none; 
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--on-surface);
    margin-right: 12px;
}

/* Main Content */
.main-content { flex: 1; margin-left: 260px; display: flex; flex-direction: column; }

/* Top Bar */
.top-bar {
    background-color: var(--surface-container-lowest); padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--outline-variant); display: flex; align-items: center;
    justify-content: space-between; position: sticky; top: 0; z-index: 100;
}
.search-box {
    display: flex; align-items: center; gap: var(--spacing-sm); background-color: var(--surface);
    border: 1px solid var(--outline-variant); border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md); width: 350px; color: var(--on-surface-variant);
}
.search-box input { border: none; background: none; outline: none; font-size: 14px; width: 100%; font-family: var(--font-main); }
.top-bar-actions { display: flex; align-items: center; gap: var(--spacing-md); }
.user-menu { display: flex; align-items: center; gap: var(--spacing-sm); padding-left: var(--spacing-md); border-left: 1px solid var(--outline-variant); }
.user-avatar { width: 32px; height: 32px; border-radius: 50%; background-color: var(--primary-container); display: flex; align-items: center; justify-content: center; color: white; font-weight: 600; }
.user-info { text-align: right; }
.user-name { font-weight: 600; font-size: 13px; }
.user-role { font-size: 11px; color: var(--on-surface-variant); }

/* Content Container */
.content-container { padding: var(--spacing-lg); max-width: 1600px; width: 100%; }
.page-header { margin-bottom: var(--spacing-lg); }
.page-title { font-size: 24px; font-weight: 600; margin-bottom: var(--spacing-xs); }
.page-subtitle { color: var(--on-surface-variant); font-size: 14px; }

/* Cards */
.card { background-color: var(--surface-container-lowest); border: 1px solid var(--outline-variant); border-radius: var(--radius-md); padding: var(--spacing-lg); }
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--spacing-md); }
.card-title { font-size: 14px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; color: var(--on-surface-variant); }

/* Grid System */
.grid { display: grid; gap: var(--spacing-lg); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Metrics Cards */
.metric-card { background-color: var(--surface-container-lowest); border: 1px solid var(--outline-variant); border-radius: var(--radius-md); padding: var(--spacing-lg); }
.metric-label { font-size: 12px; color: var(--on-surface-variant); text-transform: uppercase; letter-spacing: 0.5px; }
.metric-value { font-size: 32px; font-weight: 700; margin: var(--spacing-sm) 0; font-variant-numeric: tabular-nums; }
.metric-delta { font-size: 12px; font-weight: 600; }
.delta-positive { color: var(--success-text); }
.delta-negative { color: var(--error-text); }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: var(--spacing-sm); padding: var(--spacing-sm) var(--spacing-md); border: none; border-radius: var(--radius-sm); font-family: var(--font-main); font-size: 14px; font-weight: 600; cursor: pointer; transition: all 0.2s; text-decoration: none; }
.btn-primary { background-color: var(--primary-container); color: var(--on-primary); }
.btn-primary:hover { background-color: var(--primary); }
.btn-outline { background-color: transparent; border: 1px solid var(--outline-variant); color: var(--on-surface); }
.btn-outline:hover { background-color: var(--surface); }
.btn-danger { background-color: var(--error); color: var(--on-error); }

/* Badges */
.badge { display: inline-flex; align-items: center; padding: 4px 8px; border-radius: var(--radius-sm); font-size: 11px; font-weight: 600; text-transform: uppercase; }
.badge-success { background-color: var(--success-bg); color: var(--success-text); }
.badge-warning { background-color: var(--warning-bg); color: var(--warning-text); }
.badge-error { background-color: var(--error-bg); color: var(--error-text); }
.badge-info { background-color: var(--info-bg); color: var(--info-text); }
.badge-secondary { background-color: var(--surface-container); color: var(--on-surface-variant); }

/* Tables */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th { text-align: left; padding: var(--spacing-sm) var(--spacing-md); border-bottom: 1px solid var(--outline-variant); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--on-surface-variant); }
.data-table td { padding: var(--spacing-sm) var(--spacing-md); border-bottom: 1px solid var(--surface-container); vertical-align: middle; }
.data-table tr:hover td { background-color: var(--surface); }

/* Patient Queue */
.patient-queue-item { padding: var(--spacing-md); border-left: 3px solid var(--outline-variant); margin-bottom: var(--spacing-sm); background-color: var(--surface); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.patient-queue-item.priority-1 { border-left-color: var(--error); background-color: var(--error-bg); }
.patient-queue-item.priority-2 { border-left-color: var(--warning-text); background-color: var(--warning-bg); }
.patient-queue-item.priority-3 { border-left-color: var(--primary-container); }
.queue-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--spacing-xs); }
.queue-status { font-size: 11px; font-weight: 600; text-transform: uppercase; }
.queue-id { font-size: 12px; color: var(--on-surface-variant); }
.patient-name { font-weight: 600; font-size: 14px; margin-bottom: var(--spacing-xs); }
.patient-details { font-size: 12px; color: var(--on-surface-variant); }
.queue-meta { display: flex; gap: var(--spacing-md); margin-top: var(--spacing-sm); font-size: 11px; }

/* Telemetry */
.telemetry-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--spacing-md); }
.telemetry-item { background-color: var(--surface); border: 1px solid var(--outline-variant); border-radius: var(--radius-md); padding: var(--spacing-md); }
.telemetry-label { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--spacing-sm); font-size: 12px; color: var(--on-surface-variant); }
.telemetry-value { font-size: 28px; font-weight: 700; font-variant-numeric: tabular-nums; }
.telemetry-unit { font-size: 14px; font-weight: 400; color: var(--on-surface-variant); }
.telemetry-status { font-size: 11px; font-weight: 600; margin-top: var(--spacing-xs); }

/* Forms */
.form-group { margin-bottom: var(--spacing-md); }
.form-label { display: block; margin-bottom: var(--spacing-xs); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; color: var(--on-surface-variant); }
.form-control { width: 100%; padding: var(--spacing-sm) var(--spacing-md); border: 1px solid var(--outline-variant); border-radius: var(--radius-sm); font-family: var(--font-main); font-size: 14px; transition: all 0.2s; }
.form-control:focus { outline: none; border-color: var(--primary-container); box-shadow: 0 0 0 3px rgba(0, 82, 204, 0.1); }

/* Login Page */
.login-container { min-height: 100vh; display: flex; }
.login-left { flex: 1; background-color: var(--primary); color: white; padding: var(--spacing-xl); display: flex; flex-direction: column; justify-content: space-between; }
.login-brand { display: flex; align-items: center; gap: var(--spacing-sm); font-size: 24px; font-weight: 700; margin-bottom: var(--spacing-xl); }
.login-content h1 { font-size: 32px; margin-bottom: var(--spacing-md); }
.login-content p { font-size: 16px; opacity: 0.9; line-height: 1.6; }
.login-practitioner { background-color: rgba(255,255,255,0.1); padding: var(--spacing-md); border-radius: var(--radius-md); backdrop-filter: blur(10px); display: flex; align-items: center; gap: var(--spacing-md); }
.login-right { flex: 1; background-color: var(--surface-container-lowest); display: flex; align-items: center; justify-content: center; padding: var(--spacing-xl); }
.login-form { width: 100%; max-width: 400px; }
.login-form h2 { font-size: 24px; margin-bottom: var(--spacing-xs); }
.login-form > p { color: var(--on-surface-variant); margin-bottom: var(--spacing-xl); }

/* API Dashboard */
.code-block { background-color: #0f172a; color: #e2e8f0; padding: var(--spacing-md); border-radius: var(--radius-md); font-family: 'Courier New', monospace; font-size: 12px; overflow-x: auto; }
.status-indicator { display: inline-flex; align-items: center; gap: var(--spacing-xs); padding: var(--spacing-xs) var(--spacing-sm); border-radius: var(--radius-sm); font-size: 12px; font-weight: 600; }
.status-operational { background-color: var(--success-bg); color: var(--success-text); }

/* Utilities */
.text-right { text-align: right; }
.text-center { text-align: center; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }

/* ==========================================
   MOBILE HAMBURGER MENU & RESPONSIVE STYLES
   ========================================== */
.mobile-menu-toggle {
    display: none; /* Hidden on desktop */
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--on-surface);
    margin-right: 12px;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 999;
}

@media (max-width: 768px) {
    .mobile-menu-toggle { display: block; } /* Show hamburger on mobile */

    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        z-index: 1000;
        transform: translateX(-100%); /* Hide off-screen by default */
        transition: transform 0.3s ease;
        width: 260px;
        height: 100vh;
    }
    
    .sidebar.active { transform: translateX(0); } /* Slide in when active */
    .sidebar-overlay.active { display: block; } /* Show dark overlay */
    
    .main-content { margin-left: 0; width: 100%; }
    
    .top-bar { flex-wrap: wrap; padding: 12px; }
    .search-box { width: 100%; order: 3; margin-top: 10px; }
    .top-bar-actions { gap: 12px; }
    .top-bar-actions > div:first-child { display: none; } /* Hide clinic switcher to save space */
    
    .grid, .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr !important; }
    
    .data-table { display: block; overflow-x: auto; white-space: nowrap; -webkit-overflow-scrolling: touch; }
    
    .telemetry-grid { grid-template-columns: 1fr 1fr; }
    
    .page-header { flex-direction: column; align-items: flex-start; gap: 12px; }
    .card { width: 100%; max-width: 100%; }
}

@media (max-width: 480px) {
    .telemetry-grid { grid-template-columns: 1fr !important; }
    .sidebar-brand { font-size: 16px; }
    .user-info { display: none; } /* Hide user name on very small screens, keep avatar */
}

/* Critical Badge Animation */
.badge-critical {
    background-color: #fee2e2;
    color: #b91c1c;
    border: 1px solid #fecaca;
    font-weight: 700;
    text-transform: uppercase;
    animation: pulse-red 2s infinite;
}

@keyframes pulse-red {
    0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
    70% { box-shadow: 0 0 0 6px rgba(239, 68, 68, 0); }
    100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}