/* Fluidic Light Gray and Light Blue Design System */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
    --bg-base: #f8fafc;
    --bg-surface: #ffffff;
    --bg-surface-hover: #f1f5f9;
    --bg-card: #f1f5f9;
    --border-color: #cbd5e1;
    --border-glow: rgba(2, 132, 199, 0.2);
    
    --primary: #0284c7; /* Light Blue */
    --primary-glow: rgba(2, 132, 199, 0.25);
    --secondary: #0ea5e9;
    --success: #16a34a;
    --warning: #ea580c;
    --danger: #dc2626;
    --info: #0284c7;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-body);
    min-height: 100vh;
    padding: 24px;
    line-height: 1.5;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 28px;
}

header h1 {
    font-family: var(--font-heading);
    font-size: 2.1rem;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.subtitle {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.glass-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04);
    transition: var(--transition);
}

.glass-card:hover {
    border-color: #93c5fd;
    box-shadow: 0 6px 18px rgba(2, 132, 199, 0.08);
}

/* Dashboard Layout */
.app-container {
    display: flex;
    flex-direction: column;
    gap: 24px;
    max-width: 1500px;
    margin: 0 auto;
    width: 100%;
}

/* Controls Panel */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.sidebar h2 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
    border-left: 4px solid var(--primary);
    padding-left: 12px;
}

/* Forms and Inputs */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.88rem;
    color: var(--text-primary);
    margin-bottom: 6px;
    font-weight: 600;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.input-with-unit {
    display: flex;
    gap: 6px;
}

.input-with-unit input {
    flex: 1;
}

.input-with-unit select {
    width: 90px;
    background: #f8fafc;
    border: 1px solid var(--border-color);
}

input, select, textarea {
    width: 100%;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.92rem;
    outline: none;
    transition: var(--transition);
}

input:focus, select:focus, textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--border-glow);
}

.weight-inputs {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
}

.weight-box {
    text-align: center;
}

.weight-box span {
    display: block;
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
    font-weight: 500;
}

.weight-box input {
    padding: 8px 4px;
    text-align: center;
    font-size: 0.85rem;
}

/* Helper Text Info Block */
.info-icon {
    color: var(--primary);
    cursor: help;
    font-weight: bold;
    font-size: 0.8rem;
    background: #e0f2fe;
    border-radius: 50%;
    width: 16px;
    height: 16px;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    border: 1px solid #bae6fd;
}

.info-help-text {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
    line-height: 1.3;
}

/* Buttons */
.btn {
    background: var(--primary);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.btn:hover {
    background: #0369a1;
    transform: translateY(-1px);
}

.btn-secondary {
    background: #f1f5f9;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: #e2e8f0;
}

/* Results Content */
.main-content {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* Performance Metrics Cards */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
}

.metric-card {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition);
}

.metric-card:hover {
    border-color: #bae6fd;
}

.metric-card .title {
    font-size: 0.82rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.metric-card .value {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    margin-top: 8px;
    color: var(--primary);
}

.metric-card .desc {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Utilisation Charts */
.util-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.util-item {
    display: grid;
    grid-template-columns: 120px 1fr 60px;
    align-items: center;
    gap: 16px;
}

.util-item .name {
    font-size: 0.9rem;
    font-weight: 600;
}

.util-bar-container {
    height: 12px;
    background: #e2e8f0;
    border-radius: var(--radius-sm);
    overflow: hidden;
    position: relative;
}

.util-bar {
    height: 100%;
    background: var(--primary);
    border-radius: var(--radius-sm);
    width: 0;
    transition: width 1s ease-in-out;
}

.util-item .pct {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    text-align: right;
    color: var(--primary);
}

/* Gantt Chart */
.gantt-section {
    position: relative;
    overflow: hidden;
}

.gantt-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.gantt-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 600;
}

.legend {
    display: flex;
    gap: 16px;
    font-size: 0.82rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 500;
}

.legend-color {
    width: 14px;
    height: 14px;
    border-radius: 3px;
}

.color-setup { background: #f97316; } /* setup: orange */
.color-process { background: #0284c7; } /* process: light blue */
.color-maintenance { background: #ef4444; } /* maint: red */

.gantt-scroll-container {
    overflow-x: auto;
    width: 100%;
    background: #f8fafc;
    border-radius: var(--radius-md);
    padding: 16px;
    border: 1px solid var(--border-color);
}

.gantt-svg {
    display: block;
    min-width: 800px;
}

/* Tooltip standard styled */
.gantt-tooltip {
    position: absolute;
    background: #ffffff;
    border: 1.5px solid var(--primary);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    color: var(--text-primary);
    pointer-events: none;
    z-index: 100;
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.15);
    display: none;
}

/* Tables styling */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 12px;
}

th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.88rem;
}

th {
    color: var(--text-secondary);
    font-weight: 600;
    font-family: var(--font-heading);
    background: #f1f5f9;
}

td {
    color: var(--text-primary);
}

tr:hover td {
    background: #f8fafc;
}

.badge {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-block;
}

.badge-primary { background: #e0f2fe; color: #0369a1; }
.badge-success { background: #dcfce7; color: #15803d; }
.badge-danger { background: #fee2e2; color: #b91c1c; }

/* Custom Formula Builder Card */
.formula-builder {
    background: #f8fafc;
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-sm);
    padding: 14px;
    margin-top: 12px;
}

.formula-tokens {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 8px;
}

.token {
    background: #ffffff;
    border: 1px solid var(--border-color);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    cursor: pointer;
    font-family: monospace;
    transition: var(--transition);
    color: var(--text-primary);
}

.token:hover {
    background: var(--primary);
    color: white;
}

/* Premium Form Editor Styles */
.list-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
    max-height: none;
    overflow-y: visible;
}

.form-item-card {
    background: #ffffff;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    position: relative;
    transition: var(--transition);
}

.form-item-card:hover {
    border-color: #93c5fd;
    box-shadow: 0 4px 12px rgba(2, 132, 199, 0.05);
}

.form-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 8px;
}

.form-item-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1rem;
    color: var(--primary);
}

.btn-delete {
    background: none;
    border: none;
    color: var(--danger);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    opacity: 0.8;
    transition: var(--transition);
}

.btn-delete:hover {
    opacity: 1.0;
    text-decoration: underline;
}

.op-form-card {
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 12px;
    margin-top: 10px;
}

.feasible-mach-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr auto;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
    padding-bottom: 8px;
    border-bottom: 1px dashed #e2e8f0;
}

.feasible-mach-row:last-child {
    border-bottom: none;
}

.feasible-mach-row input, .feasible-mach-row select {
    padding: 6px 8px;
    font-size: 0.82rem;
}

.btn-add-sub {
    background: #e0f2fe;
    border: 1px dashed #0284c7;
    color: #0369a1;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 8px;
    border-radius: 4px;
    cursor: pointer;
    width: 100%;
    text-align: center;
    transition: var(--transition);
    margin-top: 8px;
}

.btn-add-sub:hover {
    background: #bae6fd;
    border-style: solid;
}