:root {
    --primary: #2ecc71;
    --secondary: #3498db;
    --danger: #e74c3c;
    --warning: #f39c12;
    --success: #27ae60;
    --bg-dark: #0f172a;
    --bg-elevated: #1e293b;
    --surface: rgba(30, 41, 59, 0.75);
    --glass: rgba(255, 255, 255, 0.1);
    --status-online: #10b981;
    --status-offline: #ef4444;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
}

body {
    background: var(--bg-dark);
    color: white;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    overflow: hidden;
    line-height: 1.6;
}

#app {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
}

/* Humanitarian Background Image */
#app::before {
    content: "";
    position: fixed;
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%;
    background: linear-gradient(rgba(15, 23, 42, 0.85), rgba(15, 23, 42, 0.95)), 
                url('https://images.unsplash.com/photo-1488521787991-ed7bbaae773c?q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    z-index: -2;
}

.app-header {
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
    z-index: 100;
}

.logo-group {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}

.logo-icon {
    font-size: 2rem;
}

.logo-text {
    margin: 0;
    font-size: 1.4rem;
    font-weight: 700;
    color: white;
}

.logo-text small {
    display: block;
    font-size: 0.6rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.user-context {
    display: flex;
    align-items: center;
    gap: 8px;
}

#viewport {
    flex: 1;
    overflow: auto;
    position: relative;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.5), rgba(30, 41, 59, 0.3));
}

.view-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    gap: 24px;
}

.view-loader .spinner {
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 1s linear infinite;
}

.view-loader p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.portal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    padding: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.portal-card {
    background: var(--surface);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass);
    padding: 48px 32px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.portal-card:hover { 
    transform: translateY(-12px);
    border-color: var(--primary);
    background: rgba(46, 204, 113, 0.08);
    box-shadow: 0 12px 40px rgba(46, 204, 113, 0.1);
}

.portal-card:active {
    transform: translateY(-8px);
}

.portal-card div {
    font-size: 3.5rem;
}

.portal-card h3 {
    margin: 8px 0 0 0;
    font-size: 1.3rem;
    color: white;
}

.portal-card p {
    margin: 0;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.background-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0);
    z-index: 50;
    pointer-events: none;
}

@media (max-width: 768px) {
    .app-header {
        padding: 12px 16px;
        height: 60px;
    }

    .logo-text {
        font-size: 1.1rem;
    }

    .portal-grid {
        grid-template-columns: 1fr;
        padding: 20px;
        gap: 16px;
    }

    .portal-card {
        padding: 32px 24px;
    }

    .portal-card div {
        font-size: 2.5rem;
    }
}

/* Back Button Styles */
.back-button-container {
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    padding: 16px 24px;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 99;
    display: flex;
    align-items: center;
}

.btn-back {
    background: rgba(52, 152, 219, 0.2);
    border: 1px solid var(--secondary);
    color: var(--secondary);
    padding: 10px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-back:hover {
    background: rgba(52, 152, 219, 0.3);
    border-color: var(--secondary);
    transform: translateX(-4px);
}

.btn-back:active {
    transform: translateX(-2px);
}

/* Enhanced Button Styles */
.btn-primary, .btn-secondary {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #27ae60);
    color: white;
    box-shadow: 0 4px 12px rgba(46, 204, 113, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(46, 204, 113, 0.3);
}

.btn-primary:active {
    transform: translateY(0px);
}

.btn-secondary {
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.3), rgba(52, 152, 219, 0.2));
    border: 1px solid var(--secondary);
    color: var(--secondary);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.4), rgba(52, 152, 219, 0.3));
    border-color: var(--secondary);
}

/* Enhanced Badge Styles */
.badge {
    display: inline-block;
    padding: 8px 16px;
    background: linear-gradient(135deg, rgba(46, 204, 113, 0.3), rgba(52, 152, 219, 0.3));
    border: 1px solid var(--primary);
    color: var(--primary);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.badge:hover {
    background: linear-gradient(135deg, rgba(46, 204, 113, 0.4), rgba(52, 152, 219, 0.4));
    transform: scale(1.05);
}

.badge-delivered {
    background: var(--primary);
    color: white;
}