:root {
    --ak-blue: #142a59;
    --ak-yellow: #fca311;
    --bg-dark: #070d1a;
    --card-bg: #0e1931;
    --card-hover: #162645;
    --text-main: #f1f5f9;
    --text-muted: #8b9bb4;
    --border-color: rgba(255, 255, 255, 0.06);
}
body, html {
    margin: 0; padding: 0; height: 100vh;
    background: var(--bg-dark); display: flex; flex-direction: column;
    color: var(--text-main); font-family: 'Inter', 'Noto Sans KR', sans-serif;
}
.container {
    padding: 25px; flex: 1; overflow-y: auto; max-width: 1600px; margin: 0 auto; width: 100%;
}

/* Tabs */
.tabs-wrapper { margin-bottom: 25px; display: flex; }
.occ-tab-container {
    display: inline-flex; background: rgba(0, 0, 0, 0.4);
    border-radius: 6px; padding: 4px; border: 1px solid rgba(255, 255, 255, 0.1); gap: 2px;
}
.tab-btn {
    background: transparent; color: var(--text-muted); border: none; padding: 8px 16px;
    font-size: 13px; font-weight: 700; cursor: pointer; border-radius: 4px; transition: all 0.2s;
}
.tab-btn.active {
    background: var(--ak-yellow); color: var(--bg-dark); box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}
.tab-btn:hover:not(.active) { color: #fff; }
.tab-content { display: none; animation: fadeIn 0.3s ease; }
.tab-content.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }

/* Tables & Panels */
.panel {
    background: var(--card-bg); border: 1px solid var(--border-color);
    border-radius: 10px; padding: 25px; margin-bottom: 25px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}
.panel h3 { margin-top: 0; margin-bottom: 20px; color: #fff; display: flex; justify-content: space-between; align-items: center; font-size: 16px; font-weight: 700; }

table { width: 100%; border-collapse: collapse; background: transparent; font-size: 13px; }
th, td { border: none; border-bottom: 1px solid var(--border-color); padding: 14px 12px; text-align: left; vertical-align: middle; }
th { background: rgba(20, 42, 89, 0.3); color: var(--text-main); font-weight: 600; text-transform: uppercase; font-size: 12px; letter-spacing: 0.5px; }
tbody tr:hover { background: rgba(255,255,255,0.02); }
tbody tr:last-child td { border-bottom: none; }

.action-btn { 
    background: var(--ak-blue); color: #fff; border: none; padding: 8px 14px; 
    cursor: pointer; font-weight: 600; border-radius: 6px; font-size: 12px; 
    transition: all 0.2s; display: inline-flex; align-items: center; gap: 6px; justify-content: center;
}
.action-btn:hover { background: #1e3b7a; transform: translateY(-1px); box-shadow: 0 2px 6px rgba(0,0,0,0.2); }
.action-btn.add-btn { background: rgba(252, 163, 17, 0.15); color: var(--ak-yellow); border: 1px solid rgba(252, 163, 17, 0.3); }
.action-btn.add-btn:hover { background: rgba(252, 163, 17, 0.25); }

.btn-danger { background: rgba(217, 56, 30, 0.1); color: #ef4444; border: 1px solid rgba(217, 56, 30, 0.3); white-space: nowrap; }
.btn-danger:hover { background: rgba(217, 56, 30, 0.2); }
.btn-sm { padding: 6px 10px; font-size: 11px; }

/* Inputs */
input[type="text"], input[type="number"], select, textarea {
    background: rgba(0,0,0,0.3); color: #fff; border: 1px solid var(--border-color); 
    padding: 8px 12px; border-radius: 6px; font-family: 'Inter', sans-serif; font-size: 13px;
    transition: border-color 0.2s; outline: none;
}
input[type="text"]:focus, input[type="number"]:focus, select:focus, textarea:focus {
    border-color: var(--ak-yellow);
}

/* Hide number input spinners */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
input[type="number"] {
    -moz-appearance: textfield;
}

.inline-input { width: 80px; text-align: right; }
.inline-input-sm { width: 60px; text-align: right; }

/* Toggle Switch */
.switch { position: relative; display: inline-block; width: 36px; height: 20px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: rgba(255,255,255,0.1); transition: .3s; border-radius: 20px; }
.slider:before { position: absolute; content: ""; height: 14px; width: 14px; left: 3px; bottom: 3px; background-color: #8b9bb4; transition: .3s; border-radius: 50%; }
input:checked + .slider { background-color: rgba(252, 163, 17, 0.2); border: 1px solid rgba(252, 163, 17, 0.5); }
input:checked + .slider:before { transform: translateX(14px); background-color: var(--ak-yellow); }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.25); }

/* Sub Tabs */
.sub-tabs { display: flex; gap: 15px; margin-bottom: 20px; border-bottom: 1px solid var(--border-color); padding-bottom: 8px; }
.sub-tab-btn { background: transparent; color: var(--text-muted); border: none; padding: 6px 12px; font-size: 14px; font-weight: 600; cursor: pointer; position: relative; transition: color 0.2s; }
.sub-tab-btn:hover { color: #fff; }
.sub-tab-btn.active { color: var(--ak-yellow); }
.sub-tab-btn.active::after { content: ''; position: absolute; bottom: -9px; left: 0; width: 100%; height: 2px; background: var(--ak-yellow); border-radius: 2px; }
.sub-tab-content { display: none; animation: fadeIn 0.3s ease; }
.sub-tab-content.active { display: block; }

/* Inline editing */
.inline-edit-input {
    background: transparent !important;
    border: 1px solid transparent !important;
    padding: 4px 8px !important;
    color: var(--text-main) !important;
    transition: all 0.2s;
    border-radius: 4px;
}
.inline-edit-input:hover { background: rgba(255,255,255,0.05) !important; border-color: rgba(255,255,255,0.1) !important; }
.inline-edit-input:focus { background: rgba(0,0,0,0.3) !important; border-color: var(--ak-yellow) !important; }
.inline-flex-group { display: flex; align-items: center; gap: 4px; }
.tags-container { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.tag { background: rgba(20, 42, 89, 0.4); border: 1px solid rgba(20, 42, 89, 0.8); color: #bac5d6; padding: 6px 12px; border-radius: 20px; font-size: 12px; display: flex; align-items: center; gap: 6px; transition: all 0.2s; }
.tag:hover { border-color: rgba(255,255,255,0.2); color: #fff; }
.tag.danger { border-color: rgba(217, 56, 30, 0.4); color: #fca5a5; background: rgba(217, 56, 30, 0.1); }
.tag i { cursor: pointer; opacity: 0.6; font-size: 11px;}
.tag i:hover { opacity: 1; color: #ef4444; }
.tag-add-btn { background: transparent; border: 1px dashed rgba(255,255,255,0.2); color: var(--text-muted); padding: 6px 12px; border-radius: 20px; cursor: pointer; font-size: 12px; transition: all 0.2s;}
.tag-add-btn:hover { background: rgba(255,255,255,0.05); color: #fff; border-color: rgba(255,255,255,0.4); }

/* Modals */
.modal { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.6); backdrop-filter: blur(4px); justify-content: center; align-items: center; z-index: 1000; }
.modal-content { background: var(--bg-dark); padding: 30px; border: 1px solid var(--border-color); border-radius: 12px; width: 90%; max-width: 500px; box-shadow: 0 20px 40px rgba(0,0,0,0.5); animation: modalFadeIn 0.3s cubic-bezier(0.16, 1, 0.3, 1); }
@keyframes modalFadeIn { from { opacity: 0; transform: scale(0.95) translateY(10px); } to { opacity: 1; transform: scale(1) translateY(0); } }
.modal-content h2 { margin-top: 0; font-size: 18px; margin-bottom: 20px; border-bottom: 1px solid var(--border-color); padding-bottom: 12px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 8px; color: var(--text-muted); font-size: 12px; font-weight: 600; }
.form-group input, .form-group select, .form-group textarea { width: 100%; box-sizing: border-box; }
.btn-group { display: flex; justify-content: flex-end; gap: 10px; margin-top: 30px; }
.btn-close { background: transparent; border: 1px solid var(--border-color); color: var(--text-main); }
.btn-close:hover { background: rgba(255,255,255,0.05); }

/* WX Target Airports (Multi Column) */
.multi-col-container { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 10px; }
.wx-item-row { display: flex; align-items: center; justify-content: space-between; padding: 8px 12px; background: var(--card-bg); border-radius: 6px; border: 1px solid rgba(255,255,255,0.05); }
.wx-item-info { display: flex; flex-direction: column; }
.wx-item-controls { display: flex; gap: 15px; }
.wx-toggle-group { display: flex; flex-direction: column; align-items: center; font-size: 10px; color: var(--text-muted); gap: 4px; }

/* WX Keywords (Swimlane) */
.swimlane-board { display: flex; flex-direction: column; gap: 30px; padding: 20px 0; }
.swimlane { display: flex; flex-direction: column; gap: 10px; }
.swimlane-header { font-size: 16px; font-weight: 700; display: flex; align-items: center; gap: 10px; }
.swimlane-header.danger { color: #ff6b6b; }
.swimlane-header.warn { color: #ffd93d; }
.swimlane-header.general { color: #a5b1c2; }
.swimlane-desc { font-size: 12px; font-weight: 400; color: var(--text-muted); }

.drop-zone { 
    display: flex; flex-wrap: wrap; gap: 10px; min-height: 80px; 
    padding: 15px; border-radius: 12px; 
    background: rgba(0,0,0,0.15); 
    border: 2px dashed rgba(255,255,255,0.05); 
    transition: all 0.3s ease;
}
.drop-zone.drag-active { border-color: rgba(255,255,255,0.2); background: rgba(0,0,0,0.3); }
.drop-zone.drag-over { border-color: #4cd137; background: rgba(76, 209, 55, 0.1); }

.wx-chip { 
    display: inline-flex; align-items: center; gap: 8px; 
    padding: 6px 14px; border-radius: 20px; 
    font-size: 13px; font-weight: 600; 
    cursor: grab; user-select: none;
    transition: transform 0.1s, box-shadow 0.1s;
}
.wx-chip:active { cursor: grabbing; transform: scale(0.95); }
.wx-chip.danger { background: rgba(255, 107, 107, 0.15); color: #ff6b6b; border: 1px solid rgba(255, 107, 107, 0.3); }
.wx-chip.warn { background: rgba(255, 217, 61, 0.15); color: #ffd93d; border: 1px solid rgba(255, 217, 61, 0.3); }
.wx-chip.general { background: rgba(165, 177, 194, 0.1); color: #d1d8e0; border: 1px solid rgba(165, 177, 194, 0.3); }

.chip-close { 
    display: flex; justify-content: center; align-items: center;
    width: 16px; height: 16px; border-radius: 50%; 
    background: rgba(0,0,0,0.2); color: inherit; 
    font-size: 12px; cursor: pointer; transition: background 0.2s;
}
.chip-close:hover { background: rgba(0,0,0,0.5); }

.add-chip-wrapper { display: inline-flex; align-items: center; gap: 5px; }
.add-chip-input { 
    padding: 6px 12px; border-radius: 20px; border: 1px solid rgba(255,255,255,0.1); 
    background: rgba(0,0,0,0.3); color: white; width: 120px; font-size: 13px; outline: none;
}
.add-chip-input:focus { border-color: #a5b1c2; }

/* RWY Modal Layout */
#rwyModal .modal-content { max-width: 800px; width: 95%; display: flex; flex-direction: column; gap: 20px; }
.rwy-modal-top { display: flex; flex-direction: row; gap: 20px; align-items: stretch; background: rgba(0,0,0,0.2); padding: 15px; border-radius: 8px; border: 1px solid var(--border-color); }
.rwy-sim-controls { flex: 1; display: flex; flex-direction: column; gap: 15px; justify-content: center; }
.rwy-sim-controls .slider-group { display: flex; flex-direction: column; gap: 4px; }
.rwy-sim-controls .slider-group label { font-size: 12px; color: var(--text-muted); display: flex; justify-content: space-between; }
.rwy-sim-controls .slider-group label span { color: var(--ak-yellow); font-weight: bold; }
.rwy-sim-controls input[type="range"] { width: 100%; cursor: pointer; accent-color: var(--ak-yellow); }
.rwy-sim-canvas-wrap { flex: 2; display: flex; justify-content: center; align-items: center; background: #0b1324; border-radius: 8px; border: 1px solid rgba(255,255,255,0.05); padding: 10px; position: relative; overflow: hidden; min-height: 250px; }
.rwy-modal-bottom { display: flex; flex-direction: column; gap: 15px; }

.rwy-strip-tabs { display: flex; gap: 8px; border-bottom: 1px solid var(--border-color); padding-bottom: 10px; margin-bottom: 5px; overflow-x: auto; align-items: center; }
.rwy-strip-tab { background: rgba(0,0,0,0.3); border: 1px solid transparent; color: var(--text-muted); padding: 6px 14px; border-radius: 4px; cursor: pointer; font-size: 13px; font-weight: 600; white-space: nowrap; transition: all 0.2s; }
.rwy-strip-tab:hover { background: rgba(255,255,255,0.05); }
.rwy-strip-tab.active { background: rgba(252, 163, 17, 0.1); color: var(--ak-yellow); border-color: rgba(252, 163, 17, 0.3); }

.rwy-end-config { display: flex; gap: 15px; background: rgba(255,255,255,0.02); padding: 15px; border-radius: 8px; border: 1px solid rgba(255,255,255,0.05); align-items: center; justify-content: space-between; }
.rwy-end-config h4 { margin: 0; font-size: 18px; color: #fff; width: 60px; text-align: center; font-weight: 800; letter-spacing: 1px; }
.rwy-end-inputs { display: flex; gap: 15px; flex: 1; align-items: center; }
.rwy-end-inputs .input-group { display: flex; flex-direction: column; gap: 6px; }
.rwy-end-inputs .input-group label { font-size: 11px; color: var(--text-muted); font-weight: 600; }
.rwy-end-inputs input[type="number"] { width: 70px; text-align: center; background: rgba(0,0,0,0.4); border: 1px solid rgba(255,255,255,0.1); }
.rwy-end-checks { display: flex; gap: 15px; align-items: center; background: rgba(0,0,0,0.2); padding: 8px 12px; border-radius: 6px; }
.rwy-end-checks label { font-size: 12px; display: flex; align-items: center; gap: 6px; cursor: pointer; color: #ccc; }