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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #1e3c72 100%);
    min-height: 100vh;
    color: #fff;
}

.main-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 20px;
}

/* Header Styles */
.main-header {
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    margin-bottom: 40px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.header-content {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    gap: 20px;
    flex-wrap: wrap;
}

.company-logo {
    flex: 1;
}

.home-btn {
    display: inline-flex !important;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    background: linear-gradient(135deg, #ffd700 0%, #f59e0b 100%);
    border: none;
    border-radius: 10px;
    color: #1a1a1a;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.home-btn:hover {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
    color: #1a1a1a;
}

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

.home-btn svg {
    flex-shrink: 0;
    stroke: #1a1a1a;
}

.company-logo h1 {
    color: #ffd700;
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 10px;
    text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.5);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.company-name-row {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 10px;
}

.company-name-row h1 {
    margin-bottom: 0;
}

.machine-badge {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white;
    font-size: 1.2rem;
    font-weight: bold;
    padding: 8px 20px;
    border-radius: 8px;
    white-space: nowrap;
    letter-spacing: 1px;
}

.tagline {
    color: #e0e0e0;
    font-size: 1.2rem;
    margin-bottom: 20px;
    opacity: 0.9;
}

.system-info {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.info-box {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px 25px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    flex-direction: column;
    gap: 5px;
    min-width: 150px;
}

.info-label {
    font-size: 0.9rem;
    color: #b0b0b0;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.info-value {
    font-size: 1.5rem;
    font-weight: bold;
    color: #fff;
}

.info-value.online {
    color: #4CAF50;
    animation: pulse 2s infinite;
}

.info-value.offline {
    color: #ef4444;
    animation: pulse 0.8s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

/* Section Cards */
.section-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 35px;
    text-decoration: none;
    color: #333;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 3px solid transparent;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.section-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    transition: height 0.3s ease;
}

.section-card:hover::before {
    height: 100%;
    opacity: 0.1;
}

.section-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.section-card.feeding::before {
    background: linear-gradient(90deg, #f093fb 0%, #f5576c 100%);
}

.section-card.heating::before {
    background: linear-gradient(90deg, #fa709a 0%, #fee140 100%);
}

.section-card.oiltransfer::before {
    background: linear-gradient(90deg, #4facfe 0%, #00f2fe 100%);
}

.section-card.discharge::before {
    background: linear-gradient(90deg, #43e97b 0%, #38f9d7 100%);
}

.section-card.cooling::before {
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
}

.section-card.relay-control::before {
    background: linear-gradient(90deg, #f857a6 0%, #ff5858 100%);
}

.section-card.vfd-config::before {
    background: linear-gradient(90deg, #06b6d4 0%, #3b82f6 100%);
}

.card-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
    color: #667eea;
    opacity: 0.8;
}

.section-card.feeding .card-icon { color: #f5576c; }
.section-card.heating .card-icon { color: #fa709a; }
.section-card.oiltransfer .card-icon { color: #4facfe; }
.section-card.discharge .card-icon { color: #43e97b; }
.section-card.cooling .card-icon { color: #667eea; }
.section-card.relay-control .card-icon { color: #f857a6; }
.section-card.vfd-config .card-icon { color: #06b6d4; }

.section-card h2 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: #1a1a1a;
    font-weight: bold;
}

.section-card p {
    color: #666;
    font-size: 1rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

.card-stats {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.stat {
    background: rgba(102, 126, 234, 0.1);
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #667eea;
}

.section-card.feeding .stat { background: rgba(245, 87, 108, 0.1); color: #f5576c; }
.section-card.heating .stat { background: rgba(250, 112, 154, 0.1); color: #fa709a; }
.section-card.oiltransfer .stat { background: rgba(79, 172, 254, 0.1); color: #4facfe; }
.section-card.discharge .stat { background: rgba(67, 233, 123, 0.1); color: #43e97b; }
.section-card.cooling .stat { background: rgba(102, 126, 234, 0.1); color: #667eea; }
.section-card.relay-control .stat { background: rgba(248, 87, 166, 0.1); color: #f857a6; }
.section-card.vfd-config .stat { background: rgba(6, 182, 212, 0.1); color: #06b6d4; }

.card-arrow {
    position: absolute;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 3rem;
    color: #ddd;
    transition: all 0.3s ease;
}

.section-card:hover .card-arrow {
    right: 20px;
    color: #667eea;
}

/* Footer */
.main-footer {
    text-align: center;
    padding: 30px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 15px;
    margin-top: 40px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.main-footer p {
    margin: 5px 0;
    color: #b0b0b0;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .header-content {
        flex-direction: column-reverse;
        align-items: flex-end !important;
    }
    
    .company-logo {
        width: 100%;
        text-align: left;
    }
    
    .company-logo h1 {
        font-size: 2rem;
    }
    
    .machine-badge {
        font-size: 0.9rem;
        padding: 5px 14px;
    }
    
    .home-btn {
        margin-bottom: 15px;
    }
    
    .system-info {
        flex-direction: column;
    }
    
    .info-box {
        width: 100%;
    }
}