/* style.css - Modernes Glassmorphism-Design für die UVI Web-Applikation */

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

:root {
    --bg-primary: #0b0f19;
    --bg-gradient: linear-gradient(135deg, #0b0f19 0%, #111827 50%, #1e1b4b 100%);
    
    /* Glassmorphism Panel Colors */
    --panel-bg: rgba(17, 24, 39, 0.65);
    --panel-border: rgba(255, 255, 255, 0.06);
    --panel-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --panel-blur: blur(12px);
    
    /* Text Colors */
    --text-primary: #f9fafb;
    --text-muted: #9ca3af;
    --text-dim: #6b7280;
    
    /* Brand & Utility Colors */
    --primary: #3b82f6;
    --primary-glow: rgba(59, 130, 246, 0.3);
    --accent: #8b5cf6;
    --accent-glow: rgba(139, 92, 246, 0.3);
    
    /* Consumption Colors (Curated HSL) */
    --color-heating: #f97316; /* Warm Orange */
    --color-cold-water: #0ea5e9; /* Light Ice Blue */
    --color-hot-water: #ef4444; /* Coral Red */
    --color-norm: #10b981; /* Standard Green */
    
    /* Alert Statuses */
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.15);
    --error: #ef4444;
    --error-bg: rgba(239, 68, 68, 0.15);
    --info: #3b82f6;
    --info-bg: rgba(59, 130, 246, 0.15);
    
    /* Fonts and Layout */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --radius-lg: 16px;
    --radius-md: 10px;
    --radius-sm: 6px;
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    background-image: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.02);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Container & Grid Layouts */
.app-container {
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 2rem 1rem;
    flex-grow: 1;
}

.auth-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-grow: 1;
    padding: 2rem;
}

/* Navigation & Header */
.navbar {
    background: rgba(10, 15, 30, 0.7);
    border-bottom: 1px solid var(--panel-border);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.nav-brand {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.025em;
    background: linear-gradient(to right, #3b82f6, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 1rem;
    border-left: 1px solid var(--panel-border);
    padding-left: 1.5rem;
}

/* Cards & Panels (Glassmorphism) */
.glass-panel {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--panel-shadow);
    backdrop-filter: var(--panel-blur);
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.glass-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.15) 50%, rgba(255,255,255,0) 100%);
}

.glass-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    transition: var(--transition-normal);
}

.glass-card:hover {
    background: rgba(255, 255, 255, 0.04);
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.08);
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.25rem;
    background: linear-gradient(to right, var(--text-primary), var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 {
    font-size: 1.75rem;
    border-bottom: 1px solid var(--panel-border);
    padding-bottom: 0.5rem;
}

h3 {
    font-size: 1.25rem;
}

p {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

/* Forms & Inputs */
.form-group {
    margin-bottom: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
}

.form-control {
    width: 100%;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
    background: rgba(255, 255, 255, 0.07);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: var(--transition-normal);
    text-decoration: none;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.25);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.35);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
}

.btn-danger {
    background: var(--error);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
}

/* Table Design */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--panel-border);
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.95rem;
}

th, td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--panel-border);
}

th {
    background: rgba(255, 255, 255, 0.02);
    font-weight: 600;
    color: var(--text-muted);
}

tr:last-child td {
    border-bottom: none;
}

tr:hover td {
    background: rgba(255, 255, 255, 0.01);
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
}

.alert-success {
    background: var(--success-bg);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--success);
}

.alert-error {
    background: var(--error-bg);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--error);
}

/* Auth Pages (Login Layout) */
.auth-card {
    max-width: 450px;
    width: 100%;
    animation: fadeInUp 0.5s ease-out;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header img {
    height: 48px;
    margin-bottom: 1rem;
}

/* Dashboard Metrics & Layout */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.metric-panel {
    display: flex;
    flex-direction: column;
}

/* Legend and Infobox values */
.consumption-legend-box {
    display: flex;
    gap: 1.5rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--panel-border);
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    flex-direction: column;
}

.legend-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.legend-value {
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 0.25rem;
}

/* Accent borders for specific consumption panels */
.heating-card { border-left: 4px solid var(--color-heating); }
.coldwater-card { border-left: 4px solid var(--color-cold-water); }
.hotwater-card { border-left: 4px solid var(--color-hot-water); }

.heating-value { color: var(--color-heating); }
.coldwater-value { color: var(--color-cold-water); }
.hotwater-value { color: var(--color-hot-water); }

/* Tabs system for Admin settings */
.tab-nav {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--panel-border);
    padding-bottom: 0.75rem;
    overflow-x: auto;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-weight: 600;
    padding: 0.5rem 1rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    white-space: nowrap;
    text-decoration: none;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
}

.tab-btn.active {
    color: white;
    background: var(--primary);
}

/* Footer styling */
.app-footer {
    border-top: 1px solid var(--panel-border);
    background: rgba(10, 15, 30, 0.4);
    padding: 1.5rem;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-dim);
}

.app-footer-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* Micro-animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.4s ease-out forwards;
}

/* Badge status indicators */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-admin {
    background: rgba(139, 92, 246, 0.15);
    color: #a78bfa;
    border: 1px solid rgba(139, 92, 246, 0.3);
}

.badge-tenant {
    background: rgba(59, 130, 246, 0.15);
    color: #60a5fa;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

/* Mobile responsive fixes */
@media (max-width: 768px) {
    .navbar-inner {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    
    .nav-user {
        border-left: none;
        padding-left: 0;
        border-top: 1px solid var(--panel-border);
        padding-top: 1rem;
        width: 100%;
        justify-content: center;
    }
    
    .app-footer-inner {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    h1 {
        font-size: 1.75rem;
    }
}