/* ELM Spare Parts Dashboard — Styles (ELM Nexus Design Guide) */

:root {
    --bg: #1a1f2e;
    --text: #e0e0e0;
    --text-secondary: #a0a8b4;
    --card-bg: #242938;
    --card-border: rgba(255,255,255,0.06);
    --border: #3a4050;
    --border-light: #2e3444;
    --input-bg: #2e3444;
    --input-border: #3a4050;
    --table-header-bg: #2e3444;
    --table-hover: #2e3444;
    --hint: #6b7785;
    --header-bg: #0f1219;
    --nav-bg: #1a1f2e;
    --nav-hover: #2e3444;
}

[data-theme="light"] {
    --bg: #f5f7fa;
    --text: #232f3e;
    --text-secondary: #687078;
    --card-bg: #ffffff;
    --card-border: rgba(0,0,0,0.1);
    --border: #e0e0e0;
    --border-light: #eee;
    --input-bg: #ffffff;
    --input-border: #d5dbdb;
    --table-header-bg: #f5f5f5;
    --table-hover: #f9fafb;
    --hint: #8c9bab;
    --header-bg: #232f3e;
    --nav-bg: #37475a;
    --nav-hover: #485769;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Amazon Ember', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 14px;
    color: var(--text);
    background: var(--bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.app-header { position: relative;
    height: auto; padding: 12px 24px;
    background: #161e2d;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 100;
}
.header-left { display: flex; align-items: center; gap: 16px; }
.header-logo { height: 192px; }
.header-title { font-size: 36px; font-weight: 700; color: #fff; }
.header-center { position: absolute; left: 50%; transform: translateX(-50%); text-align: center; }
.header-subtitle { font-size: 13px; color: rgba(255,255,255,0.6); margin-top: 2px; font-weight: 400; }
.header-right { display: flex; align-items: center; gap: 12px; }
.icon-btn { background: none; border: none; font-size: 18px; cursor: pointer; padding: 6px; border-radius: 4px; }
.icon-btn:hover { background: rgba(255,255,255,0.1); }
.user-badge { background: #37475a; color: #fff; padding: 4px 12px; border-radius: 12px; font-size: 12px; font-weight: 600; }
.accent-line { height: 3px; background: linear-gradient(90deg, #00a0c9, #33c4e8, #00a0c9); }

/* Navigation */
.main-nav {
    background: #232f3e;
    display: flex;
    padding: 0 24px;
    position: sticky;
    top: 68px;
    z-index: 99;
}
.nav-link {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    padding: 16px 24px;
    font-size: 15px;
    font-weight: 500;
    border-bottom: 2px solid transparent;
    transition: all 0.15s;
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,0.04); }
.nav-link.active { color: #00a0c9; border-bottom-color: #00a0c9; }

/* Content */
.content { flex: 1; padding: 32px 24px; max-width: 1400px; margin: 0 auto; width: 100%; }

/* Footer */
.app-footer { background: #161e2d; border-top: 3px solid #00a0c9; padding: 16px 24px; }
.footer-content { display: flex; justify-content: space-between; color: #a0a8b4; font-size: 12px; }

/* Cards */
.card {
    background: var(--card-bg);
    border-radius: 10px;
    box-shadow: 0 1px 3px var(--card-border);
    padding: 24px;
    margin-bottom: 20px;
    border: 1px solid var(--border-light);
    transition: box-shadow 0.2s;
}
.card:hover { box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
.card-title { font-size: 16px; font-weight: 700; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--border-light); }

/* KPI Grid */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin-bottom: 24px; }
.kpi-card { background: var(--card-bg); border: 1px solid var(--border-light); border-radius: 10px; padding: 16px; text-align: center; }
.kpi-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.3px; color: var(--text-secondary); }
.kpi-value { font-size: 28px; font-weight: 700; margin-top: 4px; color: var(--text); }

/* Tables */
table { width: 100%; border-collapse: collapse; }
th { background: var(--table-header-bg); padding: 10px 12px; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.3px; color: var(--text-secondary); text-align: left; border-bottom: 2px solid var(--border); }
td { padding: 10px 12px; border-bottom: 1px solid var(--border-light); color: var(--text); }
tr:hover td { background: rgba(0,115,187,0.04); border-left: 3px solid #0073bb; }
.table-wrap { overflow-x: auto; border-radius: 8px; border: 1px solid var(--border-light); }

/* Buttons */
.btn { padding: 10px 20px; border: none; border-radius: 6px; font-size: 14px; font-weight: 600; cursor: pointer; transition: all 0.2s; }
.btn-primary { background: #ff9900; color: #232f3e; }
.btn-primary:hover { background: #ec7211; transform: translateY(-1px); }
.btn-secondary { background: #37475a; color: #fff; }
.btn-secondary:hover { background: #232f3e; transform: translateY(-1px); }
.btn-sm { padding: 6px 12px; font-size: 12px; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 10px 12px; border: 1px solid var(--input-border); border-radius: 4px;
    font-size: 14px; background: var(--input-bg); color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: #0073bb; box-shadow: 0 0 0 2px rgba(0,115,187,0.2); }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }

/* Status Badges */
.badge { display: inline-block; padding: 4px 10px; border-radius: 12px; font-size: 11px; font-weight: 600; letter-spacing: 0.2px; }
.badge-critical { background: rgba(209,50,18,0.15); color: #d13212; border: 1px solid rgba(209,50,18,0.2); }
.badge-high { background: rgba(255,153,0,0.15); color: #ff9900; border: 1px solid rgba(255,153,0,0.2); }
.badge-medium { background: rgba(255,135,0,0.12); color: #c77b0b; border: 1px solid rgba(199,123,11,0.2); }
.badge-low { background: rgba(29,129,2,0.12); color: #1d8102; border: 1px solid rgba(29,129,2,0.2); }
.badge-complete { background: rgba(0,160,201,0.12); color: #00a0c9; border: 1px solid rgba(0,160,201,0.2); }

/* Heatmap */
.heatmap-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; margin-bottom: 24px; }
.heatmap-card { background: var(--card-bg); border: 2px solid var(--border); border-radius: 10px; padding: 20px; border-left: 5px solid var(--border); transition: transform 0.15s, box-shadow 0.15s; cursor: pointer; overflow: hidden; word-wrap: break-word; }
.heatmap-card:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(0,0,0,0.12); }
.heatmap-card.risk-critical { border-left-color: #d13212; }
.heatmap-card.risk-high { border-left-color: #ff9900; }
.heatmap-card.risk-medium { border-left-color: #c77b0b; }
.heatmap-card.risk-low { border-left-color: #1d8102; }
.heatmap-card.risk-complete { border-left-color: #00a0c9; }
.heatmap-site { font-size: 18px; font-weight: 700; margin-bottom: 4px; overflow: hidden; text-overflow: ellipsis; }
.heatmap-meta { font-size: 12px; color: var(--text-secondary); }
.heatmap-stats { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; font-size: 12px; }
.heatmap-stat-value { font-weight: 700; }

/* Loading */
.skeleton { background: linear-gradient(90deg, var(--table-hover) 25%, var(--border-light) 50%, var(--table-hover) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: 4px; }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* Toast */
.toast-container { position: fixed; top: 80px; right: 20px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; }
.toast { padding: 14px 20px; border-radius: 8px; font-size: 13px; font-weight: 500; color: white; box-shadow: 0 4px 16px rgba(0,0,0,0.15); animation: slideInToast 0.3s ease; }
.toast-success { background: #1d8102; }
.toast-error { background: #d13212; }
.toast-info { background: #0073bb; }
@keyframes slideInToast { from { transform: translateX(20px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* Responsive */
@media (max-width: 768px) {
    .content { padding: 16px; }
    .kpi-grid { grid-template-columns: repeat(2, 1fr); }
    .heatmap-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .main-nav { overflow-x: auto; }
    .footer-content { flex-direction: column; gap: 4px; }
}

/* KPI conditional colors */
.kpi-good .kpi-value { color: #1d8102; }
.kpi-warn .kpi-value { color: #ff9900; }
.kpi-bad .kpi-value { color: #d13212; }

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

/* Selection */
::selection { background: rgba(0,160,201,0.2); }

/* Filter Chips */
.filter-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { display: inline-block; padding: 4px 12px; border-radius: 16px; font-size: 12px; font-weight: 500; cursor: pointer; border: 1px solid var(--border); background: var(--input-bg); color: var(--text-secondary); transition: all 0.15s; }
.chip:hover { border-color: #00a0c9; color: var(--text); }
.chip-active { background: #00a0c9; color: #fff; border-color: #00a0c9; }

/* Multi-Select Dropdown */
.ms-dropdown { position: relative; }
.ms-display { padding: 8px 12px; border: 1px solid var(--input-border); border-radius: 4px; background: var(--input-bg); color: var(--text); cursor: pointer; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: flex; justify-content: space-between; align-items: center; }
.ms-display:hover { border-color: #00a0c9; }
.ms-arrow { font-size: 10px; color: var(--text-secondary); }
.ms-panel { position: absolute; top: 100%; left: 0; right: 0; background: var(--card-bg); border: 1px solid var(--border); border-radius: 4px; box-shadow: 0 4px 16px rgba(0,0,0,0.2); z-index: 200; max-height: 250px; overflow-y: auto; margin-top: 2px; }
.ms-search { width: 100%; padding: 8px 10px; border: none; border-bottom: 1px solid var(--border-light); background: var(--input-bg); color: var(--text); font-size: 13px; outline: none; }
.ms-option { display: flex; align-items: center; gap: 8px; padding: 6px 10px; font-size: 13px; cursor: pointer; color: var(--text); }
.ms-option:hover { background: var(--table-hover); }
.ms-option input[type=checkbox] { accent-color: #00a0c9; }