/* =====================================================
   Naval Defense Popup — OceanWar
   Overlay for managing island Harbor defense
   settings: enable/disable, defense range, ship list.
   ===================================================== */

.naval-defense-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    z-index: 11000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

.naval-defense-container {
    width: 700px;
    max-width: 95vw;
    max-height: 85vh;
    background: linear-gradient(135deg, #0a0a1a 0%, #0d1828 50%, #0a0a1a 100%);
    border: 2px solid #3388cc;
    border-radius: 12px;
    box-shadow: 0 0 40px rgba(51, 136, 204, 0.3), inset 0 0 60px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    font-family: 'Courier New', monospace;
    color: #88ccff;
}

/* ── Header ── */
.naval-defense-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: linear-gradient(180deg, #0d1828, #0a0a1a);
    border-bottom: 1px solid #3388cc;
}

.naval-defense-header-icon {
    font-size: 28px;
}

.naval-defense-header-text h2 {
    margin: 0;
    font-size: 18px;
    color: #88ccff;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.naval-defense-subtitle {
    font-size: 11px;
    color: #446688;
    margin-top: 2px;
}

.naval-defense-close {
    margin-left: auto;
    background: none;
    border: 1px solid #445;
    color: #889;
    font-size: 22px;
    cursor: pointer;
    padding: 2px 8px;
    border-radius: 4px;
    transition: all 0.2s;
}
.naval-defense-close:hover {
    color: #ff4444;
    border-color: #ff4444;
}

/* ── Body ── */
.naval-defense-body {
    flex: 1;
    overflow-y: auto;
    padding: 16px 20px;
}

/* ── Settings Section ── */
.naval-defense-settings {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 20px;
}

.naval-defense-setting-row {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    background: rgba(0, 20, 40, 0.5);
    border: 1px solid #1a2a3a;
    border-radius: 8px;
}

.naval-defense-setting-label {
    font-size: 13px;
    color: #88aacc;
    min-width: 160px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.naval-defense-setting-value {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Toggle switch — reuse air-defense approach but scoped */
.naval-defense-toggle {
    position: relative;
    width: 48px;
    height: 24px;
    cursor: pointer;
}
.naval-defense-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}
.naval-defense-toggle .toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background: #1a1a2e;
    border: 1px solid #333;
    border-radius: 12px;
    transition: 0.3s;
}
.naval-defense-toggle .toggle-slider:before {
    content: '';
    position: absolute;
    height: 18px;
    width: 18px;
    left: 2px;
    bottom: 2px;
    background: #666;
    border-radius: 50%;
    transition: 0.3s;
}
.naval-defense-toggle input:checked + .toggle-slider {
    background: #0d2a4d;
    border-color: #3388cc;
}
.naval-defense-toggle input:checked + .toggle-slider:before {
    transform: translateX(24px);
    background: #88ccff;
}

/* Range slider */
.naval-defense-range-slider {
    width: 200px;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background: #1a1a2e;
    border: 1px solid #333;
    border-radius: 3px;
    outline: none;
}
.naval-defense-range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background: #3388cc;
    border-radius: 50%;
    cursor: pointer;
}
.naval-defense-range-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: #3388cc;
    border-radius: 50%;
    cursor: pointer;
    border: none;
}
.naval-defense-range-value {
    font-size: 16px;
    font-weight: bold;
    color: #88ccff;
    min-width: 55px;
    text-align: center;
}

.naval-defense-range-note {
    font-size: 11px;
    color: #556677;
    padding: 4px 16px;
    font-style: italic;
}
.naval-defense-range-note strong {
    color: #88ccff;
}

/* ── Ship List ── */
.naval-defense-ship-header {
    font-size: 14px;
    font-weight: bold;
    color: #88ccff;
    margin-bottom: 10px;
    padding-bottom: 6px;
    border-bottom: 1px solid #1a2a40;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.naval-defense-ship-table {
    width: 100%;
}

.naval-defense-table-header {
    display: grid;
    grid-template-columns: 2.5fr 1fr 0.8fr 1fr;
    padding: 6px 10px;
    font-size: 10px;
    color: #667;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid #1a2a40;
}

.naval-defense-ship-row {
    display: grid;
    grid-template-columns: 2.5fr 1fr 0.8fr 1fr;
    align-items: center;
    padding: 8px 10px;
    font-size: 12px;
    border-bottom: 1px solid #0d1a2a;
    transition: background 0.15s;
}
.naval-defense-ship-row:hover {
    background: rgba(0, 30, 60, 0.3);
}

.naval-defense-unit-name {
    display: flex;
    align-items: center;
    gap: 6px;
}
.naval-defense-unit-icon { font-size: 14px; }
.naval-defense-unit-label { color: #aaccee; font-weight: bold; }
.naval-defense-unit-id { color: #667; font-size: 10px; }
.naval-defense-unit-type { color: #556; font-size: 10px; margin-left: 4px; }

.naval-defense-bar {
    width: 60px;
    height: 6px;
    background: #1a1a2e;
    border-radius: 3px;
    overflow: hidden;
    display: inline-block;
    vertical-align: middle;
}
.naval-defense-bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s;
}
.naval-defense-bar-fill.hp-high { background: #00cc66; }
.naval-defense-bar-fill.hp-mid { background: #ccaa00; }
.naval-defense-bar-fill.hp-low { background: #cc3333; }
.naval-defense-bar-text {
    font-size: 10px;
    color: #889;
    margin-left: 4px;
}

.naval-defense-range-cell {
    text-align: center;
}
.naval-defense-range-km {
    font-size: 12px;
    color: #88ccff;
    font-weight: bold;
}

.naval-defense-status-tag {
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 3px;
    font-weight: bold;
}
.naval-defense-status-tag.ready { background: #003d1a; color: #00ff88; }
.naval-defense-status-tag.damaged { background: #3d1a00; color: #ff6644; }
.naval-defense-status-tag.building { background: #3d3d00; color: #cccc44; }
.naval-defense-status-tag.out-range { background: #1a1a2e; color: #667788; }

.naval-defense-no-ships {
    text-align: center;
    padding: 30px;
    color: #556;
    font-size: 13px;
}

/* ── Info section ── */
.naval-defense-info {
    margin-top: 16px;
    padding: 12px 16px;
    background: rgba(0, 20, 40, 0.4);
    border: 1px solid #1a2a3a;
    border-radius: 6px;
    font-size: 11px;
    color: #556677;
}
.naval-defense-info p {
    margin: 4px 0;
}

/* ── Capacity info ── */
.naval-defense-capacity {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    margin-bottom: 12px;
    background: rgba(0, 20, 40, 0.4);
    border: 1px solid #1a2a40;
    border-radius: 6px;
    font-size: 12px;
    color: #88aacc;
}
.naval-defense-capacity-value {
    font-weight: bold;
    color: #88ccff;
}

/* ── Footer ── */
.naval-defense-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 12px 20px;
    background: linear-gradient(180deg, #0a0a1a, #0d1828);
    border-top: 1px solid #1a2a3a;
}

.naval-defense-btn {
    padding: 8px 20px;
    border: 1px solid #333;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    font-size: 12px;
    font-weight: bold;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.2s;
}
.naval-defense-btn.btn-save {
    background: linear-gradient(180deg, #0d2a4d, #0a1a33);
    color: #88ccff;
    border-color: #3388cc;
}
.naval-defense-btn.btn-save:hover {
    background: linear-gradient(180deg, #1a3a5a, #0d2a4d);
    box-shadow: 0 0 10px rgba(51, 136, 204, 0.3);
}
.naval-defense-btn.btn-close {
    background: linear-gradient(180deg, #1a1a2e, #12122a);
    color: #889;
    border-color: #445;
}
.naval-defense-btn.btn-close:hover {
    color: #aab;
    border-color: #667;
}