@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
    --accent-primary: #10b981;
    --accent-secondary: #3b82f6;
    --accent-hover: #059669;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
}

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background: var(--bg-gradient);
    color: var(--text-primary);
    min-height: 100vh;
}

.header {
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    padding: 20px 40px;
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--accent-primary);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.container {
    display: flex;
    min-height: calc(100vh - 74px);
}

.sidebar {
    width: 260px;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(10px);
    border-right: 1px solid var(--glass-border);
    padding: 30px 20px;
}

.sidebar h3 {
    margin-top: 0;
    font-size: 14px;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 1px;
    margin-bottom: 20px;
    padding-left: 15px;
}

.sidebar ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar li {
    padding: 12px 15px;
    margin-bottom: 8px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
}

.sidebar li:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    transform: translateX(4px);
}

.sidebar li.active {
    background: linear-gradient(90deg, rgba(16, 185, 129, 0.15) 0%, transparent 100%);
    color: var(--accent-primary);
    border-left: 4px solid var(--accent-primary);
}

.main {
    flex: 1;
    padding: 40px;
    box-sizing: border-box;
    overflow-y: auto;
}

.section {
    display: none;
    animation: fadeIn 0.4s ease-out forwards;
}

.section.active {
    display: block;
}

/* Dashboard specific grid */
#dashboard.active {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

#dashboard .card:nth-child(1),
#dashboard .card:nth-child(2) {
    grid-column: span 2;
}

@media (max-width: 1100px) {

    #dashboard .card:nth-child(1),
    #dashboard .card:nth-child(2) {
        grid-column: span 1;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

.card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-sizing: border-box;
}

#dashboard .card {
    margin-bottom: 0;
    /* Let grid gap handle it for dashboard */
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 20px -5px rgba(0, 0, 0, 0.2), 0 8px 10px -5px rgba(0, 0, 0, 0.1);
}

.card h2,
.card h3 {
    margin-top: 0;
    margin-bottom: 16px;
    font-weight: 600;
}

.card h2 {
    font-size: 1.25rem;
    color: var(--text-primary);
}

.card h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
}

.card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

#ecoScore {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin: 10px 0;
    background: -webkit-linear-gradient(45deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

#prediction {
    list-style: none;
    padding: 0;
    margin: 0;
}

#prediction li {
    padding: 12px 0;
    border-bottom: 1px solid var(--glass-border);
    color: var(--text-primary);
    font-weight: 500;
}

#prediction li:last-child {
    border-bottom: none;
}

#aiAnalysis p {
    background: rgba(59, 130, 246, 0.1);
    border-left: 4px solid var(--accent-secondary);
    padding: 12px 16px;
    border-radius: 4px 8px 8px 4px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.alert-card {
    background: var(--danger-bg);
    border-color: rgba(239, 68, 68, 0.2);
}

.alert-card h2 {
    color: var(--danger);
}

#alertList {
    list-style: none;
    padding: 0;
    margin: 0;
}

#alertList li {
    color: #fca5a5;
    background: rgba(239, 68, 68, 0.15);
    padding: 12px 16px;
    margin-bottom: 10px;
    border-radius: 8px;
    border-left: 4px solid var(--danger);
    font-weight: 500;
    display: flex;
    align-items: center;
}

label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
    display: inline-block;
    margin-bottom: 8px;
}

input[type="number"] {
    width: 100%;
    max-width: 300px;
    padding: 12px 16px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: all 0.3s ease;
}

input[type="number"]:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

input[type="checkbox"] {
    accent-color: var(--accent-primary);
    width: 18px;
    height: 18px;
    vertical-align: middle;
    margin-right: 8px;
}

button {
    margin-top: 16px;
    margin-right: 12px;
    padding: 12px 24px;
    background: var(--accent-primary);
    color: #fff;
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(16, 185, 129, 0.2);
}

button:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(16, 185, 129, 0.3);
}

button:active {
    transform: translateY(0);
}

button[onclick="resetSystem()"] {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    box-shadow: none;
}

button[onclick="resetSystem()"]:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

canvas {
    width: 100% !important;
    height: 250px !important;
}

/* Loader Styles */
.loader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-gradient);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader-hidden {
    opacity: 0;
    visibility: hidden;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid rgba(255, 255, 255, 0.1);
    border-top: 5px solid var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

    100% {
        transform: rotate(360deg);
    }
}

/* Toast Notifications */
.toast-notification {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-left: 4px solid var(--accent-primary);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    color: var(--text-primary);
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
    z-index: 10000;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: 0.5px;
}

.toast-notification.show {
    opacity: 1;
    transform: translateY(0);
}