@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Orbitron:wght@500;700;900&display=swap');

:root {
    /* Color Tokens */
    --bg-darkest: #0a0a0f;
    --bg-darker: #12121e;
    --bg-card: rgba(26, 26, 38, 0.65);
    --border-color: rgba(255, 255, 255, 0.08);
    
    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b0;
    --text-muted: #62627a;
    
    /* Brand & Hopper Colors */
    --pure-color: #00e5ff;
    --pure-glow: rgba(0, 229, 255, 0.35);
    
    --master-color: #e040fb;
    --master-glow: rgba(224, 64, 251, 0.35);
    
    --recycle-color: #39ff14;
    --recycle-glow: rgba(57, 255, 20, 0.35);
    
    --accent-blue: #2979ff;
    --accent-red: #ff1744;
    --accent-yellow: #ffd600;
    --accent-green: #00e676;
    
    --font-sans: 'Inter', sans-serif;
    --font-mono: 'Orbitron', monospace;
    
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.1) transparent;
}

body {
    background-color: var(--bg-darkest);
    color: var(--text-primary);
    font-family: var(--font-sans);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(41, 121, 255, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(57, 255, 20, 0.04) 0%, transparent 45%);
}

/* Header */
header {
    background-color: var(--bg-darker);
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(10px);
    z-index: 10;
}

.logo-section h1 {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 1px;
    background: linear-gradient(90deg, #ffffff 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-section h1 span {
    color: var(--recycle-color);
    font-family: var(--font-mono);
    text-shadow: 0 0 10px var(--recycle-glow);
}

.system-status {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--text-muted);
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
}

.status-dot.active {
    background-color: var(--accent-green);
    box-shadow: 0 0 12px var(--accent-green);
    animation: pulse 1.8s infinite;
}

.status-dot.error {
    background-color: var(--accent-red);
    box-shadow: 0 0 12px var(--accent-red);
    animation: pulse 1s infinite;
}

.status-dot.idle {
    background-color: var(--accent-yellow);
    box-shadow: 0 0 12px var(--accent-yellow);
}

/* Main Layout Grid */
.main-container {
    display: grid;
    grid-template-columns: 340px 1fr 360px;
    gap: 1.5rem;
    padding: 1.5rem;
    flex-grow: 1;
    max-width: 1920px;
    margin: 0 auto;
    width: 100%;
}

@media (max-width: 1400px) {
    .main-container {
        grid-template-columns: 320px 1fr;
    }
    .right-sidebar {
        grid-column: span 2;
    }
}

@media (max-width: 992px) {
    .main-container {
        grid-template-columns: 1fr;
    }
    .left-sidebar, .center-panel, .right-sidebar {
        grid-column: span 1;
    }
}

/* Sidebar Panels */
.panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.25);
    height: fit-content;
}

.panel-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.panel-title i {
    font-size: 1.2rem;
    color: var(--recycle-color);
}

/* Form Styles */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: rgba(10, 10, 15, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

.input-control:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 10px rgba(41, 121, 255, 0.25);
}

.input-control:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.input-suffix {
    position: absolute;
    right: 1rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
}

/* Dropdown styling */
select.input-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2362627a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1rem;
    padding-right: 2.5rem;
    cursor: pointer;
}

/* Material Select Badges */
.material-badge-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
    margin-top: 0.25rem;
}

.material-badge {
    padding: 0.5rem 0.25rem;
    font-size: 0.75rem;
    text-align: center;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition-smooth);
    background: rgba(10, 10, 15, 0.4);
    font-weight: 600;
    color: var(--text-secondary);
}

.material-badge.active {
    background: rgba(41, 121, 255, 0.2);
    border-color: var(--accent-blue);
    color: #fff;
    box-shadow: 0 0 8px rgba(41, 121, 255, 0.3);
}

.material-badge:hover:not(.active) {
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
}

/* Center Panel (Visualization & Graphic) */
.center-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    min-height: 500px;
}

.visualizer-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.25);
    overflow: hidden;
}

/* Hopper Controls Overlay on Machine Diagram */
.machine-container {
    position: relative;
    width: 100%;
    max-width: 820px;
    height: 380px;
    margin: 2rem 0;
}

.machine-svg {
    width: 100%;
    height: 100%;
}

.hopper-input-card {
    position: absolute;
    background: rgba(14, 14, 22, 0.85);
    border: 1.5px solid var(--border-color);
    border-radius: 10px;
    padding: 0.6rem 0.8rem;
    width: 170px;
    backdrop-filter: blur(8px);
    transition: var(--transition-smooth);
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
    z-index: 5;
}

.hopper-input-card:hover {
    border-color: rgba(255,255,255,0.2);
}

.hopper-input-card.pure {
    top: -20px;
    left: 20px;
    border-left: 4px solid var(--pure-color);
}

.hopper-input-card.master {
    top: -20px;
    left: 210px;
    border-left: 4px solid var(--master-color);
}

.hopper-input-card.recycle {
    top: -20px;
    left: 400px;
    border-left: 4px solid var(--recycle-color);
}

.hopper-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
    text-transform: uppercase;
}

.hopper-card-header.pure-text { color: var(--pure-color); }
.hopper-card-header.master-text { color: var(--master-color); }
.hopper-card-header.recycle-text { color: var(--recycle-color); }

.hopper-card-content {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.hopper-card-content .row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.hopper-card-content label {
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.hopper-input {
    width: 65px;
    background: rgba(0,0,0,0.5);
    border: 1px solid rgba(255,255,255,0.1);
    color: white;
    font-size: 0.8rem;
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    text-align: right;
}

.hopper-input:focus {
    outline: none;
    border-color: currentColor;
}

.hopper-weight-display {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: white;
    font-weight: 700;
}

/* Machine Animation States */
.mold-part {
    transition: transform 0.5s ease-in-out;
}

#screwThreads {
    transition: transform 0.1s linear;
}

.screw-rotate {
    animation: rotateScrew 0.8s linear infinite;
}

@keyframes rotateScrew {
    0% { transform: translateX(0px); }
    100% { transform: translateX(20px); }
}

.nozzle-glow {
    fill: none;
    transition: fill 0.3s ease;
}

.nozzle-glowing {
    fill: url(#nozzleGlowGrad);
    filter: drop-shadow(0 0 8px #ff5722);
}

.mold-close {
    animation: closeMold 3s ease infinite alternate;
}

/* Simulation Controls */
.control-bar {
    display: flex;
    gap: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.75rem 1.25rem;
    align-items: center;
    backdrop-filter: blur(10px);
}

.btn {
    background-color: rgba(255,255,255,0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn:hover:not(:disabled) {
    background-color: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.2);
}

.btn:active:not(:disabled) {
    transform: scale(0.97);
}

.btn-primary {
    background-color: var(--accent-blue);
    border-color: transparent;
    color: white;
    box-shadow: 0 4px 12px rgba(41, 121, 255, 0.35);
}

.btn-primary:hover:not(:disabled) {
    background-color: #448aff;
    box-shadow: 0 4px 16px rgba(41, 121, 255, 0.5);
}

.btn-success {
    background-color: var(--accent-green);
    border-color: transparent;
    color: var(--bg-darkest);
    box-shadow: 0 4px 12px rgba(0, 230, 118, 0.35);
}

.btn-success:hover:not(:disabled) {
    background-color: #00ff88;
    box-shadow: 0 4px 16px rgba(0, 230, 118, 0.5);
}

.btn-danger {
    background-color: var(--accent-red);
    border-color: transparent;
    color: white;
    box-shadow: 0 4px 12px rgba(255, 23, 68, 0.35);
}

.btn-danger:hover:not(:disabled) {
    background-color: #ff5252;
}

.btn-warning {
    background-color: var(--accent-yellow);
    border-color: transparent;
    color: var(--bg-darkest);
    box-shadow: 0 4px 12px rgba(255, 214, 0, 0.35);
}

.sim-speed-selector {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
    padding: 0.25rem;
    border-radius: 8px;
    margin-left: auto;
}

.speed-badge {
    padding: 0.35rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 700;
    cursor: pointer;
    border-radius: 6px;
    transition: var(--transition-smooth);
    color: var(--text-muted);
}

.speed-badge.active {
    background: var(--text-secondary);
    color: var(--bg-darkest);
}

/* KPI Dashboard Cards */
.kpi-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.kpi-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}

.kpi-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.kpi-value {
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 700;
}

.kpi-value span {
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--text-muted);
    margin-left: 0.25rem;
}

/* Right Sidebar: Inventory & Warehouse */
.right-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Material Inventory Table */
.inventory-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 0.25rem;
}

.inventory-table th {
    text-align: left;
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.inventory-table td {
    padding: 0.65rem 0;
    font-size: 0.85rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.material-name {
    font-weight: 700;
    color: white;
}

.inventory-progress-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.inventory-progress-bar {
    flex-grow: 1;
    height: 6px;
    background: rgba(255,255,255,0.05);
    border-radius: 3px;
    overflow: hidden;
}

.inventory-progress-fill {
    height: 100%;
    background-color: var(--recycle-color);
    box-shadow: 0 0 8px var(--recycle-glow);
    border-radius: 3px;
    transition: width 0.5s ease-out;
}

.inventory-stock-qty {
    font-family: var(--font-mono);
    font-weight: 700;
    text-align: right;
    min-width: 55px;
}

.stock-status-tag {
    display: inline-block;
    padding: 0.15rem 0.4rem;
    font-size: 0.65rem;
    border-radius: 4px;
    font-weight: 700;
    text-transform: uppercase;
}

.stock-status-tag.ok {
    background: rgba(0, 230, 118, 0.15);
    color: var(--accent-green);
    border: 1px solid rgba(0, 230, 118, 0.2);
}

.stock-status-tag.low {
    background: rgba(255, 214, 0, 0.15);
    color: var(--accent-yellow);
    border: 1px solid rgba(255, 214, 0, 0.2);
}

.stock-status-tag.empty {
    background: rgba(255, 23, 68, 0.15);
    color: var(--accent-red);
    border: 1px solid rgba(255, 23, 68, 0.2);
}

/* Warehouse Actions Grid */
.add-stock-grid {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0.5rem;
}

/* Chart Container */
.chart-container {
    position: relative;
    height: 200px;
    width: 100%;
}

/* Custom animations and global utility classes */
@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.15); opacity: 0.7; }
    100% { transform: scale(1); opacity: 1; }
}

.alert-banner {
    background: rgba(255, 23, 68, 0.12);
    border: 1px solid var(--accent-red);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 0.8rem;
    color: #ff8a80;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    animation: pulseRed 2s infinite;
}

@keyframes pulseRed {
    0% { box-shadow: 0 0 0px rgba(255, 23, 68, 0); }
    50% { box-shadow: 0 0 10px rgba(255, 23, 68, 0.3); border-color: #ff5252; }
    100% { box-shadow: 0 0 0px rgba(255, 23, 68, 0); }
}

.hidden {
    display: none !important;
}

/* Wave animation for material fill level in SVG */
.material-fill {
    transition: height 0.5s ease;
}
.liquid-wave {
    animation: waveMotion 4s ease-in-out infinite alternate;
}
@keyframes waveMotion {
    0% { transform: translate(-10px, 0); }
    100% { transform: translate(10px, 0); }
}

/* Settings Form Validation Errors */
.error-text {
    color: var(--accent-red);
    font-size: 0.7rem;
    margin-top: 0.2rem;
    font-weight: 500;
}

.total-ratio-bar {
    height: 8px;
    background: #111;
    border-radius: 4px;
    overflow: hidden;
    display: flex;
    margin-top: 0.25rem;
}

.ratio-segment {
    height: 100%;
    transition: var(--transition-smooth);
}
.ratio-segment.pure { background-color: var(--pure-color); }
.ratio-segment.master { background-color: var(--master-color); }
.ratio-segment.recycle { background-color: var(--recycle-color); }