/* Galactic Empire - Sci-Fi Command-Center HUD
   Mischung aus Hochglanz-Sci-Fi (Glas, Glow, Verläufe) + Strategie-Dashboard (datendicht, klare Hierarchie). */

:root {
    --bg-0: #05070f;
    --bg-1: #0a0f1e;
    --panel: rgba(16, 26, 48, 0.62);
    --panel-2: rgba(10, 18, 36, 0.72);
    --panel-solid: #0c1426;
    --border: rgba(90, 170, 255, 0.22);
    --border-strong: rgba(80, 200, 255, 0.55);

    --accent: #36e2ff;          /* primärer HUD-Akzent (Cyan) */
    --accent-2: #8a6cff;        /* sekundär (Violett) */
    --accent-glow: rgba(54, 226, 255, 0.45);

    --good: #2bff9e;
    --warn: #ffb524;
    --bad: #ff4d63;

    --text: #cfe0f7;
    --text-dim: #7d92b6;
    --text-bright: #ffffff;

    --font-body: 'Rajdhani', 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Consolas', 'Courier New', monospace;
    --radius: 10px;
}

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

body {
    font-family: var(--font-body);
    color: var(--text);
    min-height: 100vh;
    font-size: 14px;
    line-height: 1.45;
    background:
        radial-gradient(1200px 700px at 80% -10%, rgba(124, 92, 255, 0.18), transparent 60%),
        radial-gradient(1000px 600px at 0% 110%, rgba(54, 226, 255, 0.14), transparent 55%),
        linear-gradient(160deg, #070b16 0%, #0a1224 50%, #060912 100%);
    background-attachment: fixed;
}

/* Sternenfeld */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        radial-gradient(1px 1px at 20px 30px, #fff, transparent),
        radial-gradient(1px 1px at 40px 70px, rgba(255,255,255,0.8), transparent),
        radial-gradient(1px 1px at 90px 40px, #fff, transparent),
        radial-gradient(2px 2px at 200px 50px, rgba(120,180,255,0.9), transparent),
        radial-gradient(1px 1px at 250px 90px, #fff, transparent),
        radial-gradient(1px 1px at 300px 130px, rgba(255,255,255,0.6), transparent);
    background-repeat: repeat;
    background-size: 340px 200px;
    pointer-events: none;
    z-index: -1;
    opacity: 0.45;
}

/* === Layout === */
.game-container { display: flex; min-height: 100vh; }

/* === Auth === */
.auth-overlay {
    position: fixed; inset: 0; z-index: 2000;
    display: flex; align-items: center; justify-content: center;
    backdrop-filter: blur(4px);
}
.auth-box {
    background: var(--panel);
    backdrop-filter: blur(14px);
    border: 1px solid var(--border-strong);
    border-radius: 16px;
    box-shadow: 0 0 40px rgba(54, 226, 255, 0.25), inset 0 1px 0 rgba(255,255,255,0.06);
    padding: 32px; width: 360px; max-width: 92%; text-align: center;
}
.auth-tabs { display: flex; gap: 6px; margin-bottom: 20px; }
.auth-tabs button {
    flex: 1; padding: 11px; cursor: pointer;
    background: rgba(255,255,255,0.03); color: var(--text-dim);
    border: 1px solid var(--border); border-radius: 8px;
    font-family: var(--font-body); text-transform: uppercase; letter-spacing: 1px;
    font-size: 12px; font-weight: 600; transition: all .2s;
}
.auth-tabs button.active {
    border-color: var(--accent); color: var(--accent);
    background: rgba(54,226,255,0.08); box-shadow: 0 0 12px var(--accent-glow);
}
.auth-form { display: flex; flex-direction: column; gap: 12px; }
.auth-form input, .auth-form .btn { width: 100%; }
.auth-message { margin-top: 15px; font-size: 12px; min-height: 16px; }

/* === Sidebar === */
.sidebar {
    width: 210px; flex-shrink: 0; position: fixed; height: 100vh; overflow-y: auto;
    padding: 16px 12px;
    background: linear-gradient(180deg, rgba(14,24,46,0.92), rgba(8,14,28,0.92));
    border-right: 1px solid var(--border-strong);
    box-shadow: 4px 0 24px rgba(0,0,0,0.4);
    backdrop-filter: blur(8px);
}
.game-title {
    text-align: center; font-size: 20px; font-weight: 700; letter-spacing: 3px;
    color: var(--accent); text-shadow: 0 0 16px var(--accent-glow);
    margin-bottom: 20px; padding-bottom: 14px;
    border-bottom: 1px solid var(--border);
}
.nav-menu { list-style: none; }
.nav-menu li { margin-bottom: 6px; }
.nav-menu a {
    display: block; padding: 11px 14px; position: relative;
    color: var(--text-dim); text-decoration: none;
    border: 1px solid transparent; border-radius: 8px;
    text-transform: uppercase; letter-spacing: 1px; font-size: 13px; font-weight: 600;
    transition: all .18s;
}
.nav-menu a:hover { background: rgba(54,226,255,0.06); color: var(--text); }
.nav-menu a.active {
    background: linear-gradient(90deg, rgba(54,226,255,0.16), rgba(54,226,255,0.02));
    border-color: var(--border-strong); color: var(--accent);
    box-shadow: 0 0 14px var(--accent-glow);
}
.nav-menu a.active::before {
    content: ''; position: absolute; left: -1px; top: 8px; bottom: 8px; width: 3px;
    background: var(--accent); border-radius: 3px; box-shadow: 0 0 8px var(--accent);
}
.speed-selector {
    margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border);
}
.speed-selector label {
    display: block; color: var(--text-dim); font-size: 11px;
    text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px;
}

/* === Main === */
.main-content { flex: 1; margin-left: 210px; padding: 22px; }

/* === Resource bar (HUD) === */
.resource-bar {
    display: flex; justify-content: flex-start; flex-wrap: wrap; gap: 10px;
    background: var(--panel); backdrop-filter: blur(10px);
    border: 1px solid var(--border); border-radius: var(--radius);
    padding: 14px 18px; margin-bottom: 20px;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.05), 0 6px 20px rgba(0,0,0,0.3);
}
.resource-item {
    display: flex; align-items: center; gap: 10px;
    padding: 6px 12px; border-radius: 8px;
    background: rgba(255,255,255,0.025); border: 1px solid var(--border);
    min-width: 130px;
}
.resource-icon { font-size: 20px; filter: drop-shadow(0 0 6px var(--accent-glow)); }
.resource-info { display: flex; flex-direction: column; line-height: 1.2; }
.resource-name { font-size: 10px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; }
.resource-value { font-family: var(--font-mono); font-size: 16px; font-weight: 700; color: var(--text-bright); }
.resource-production { font-size: 10px; color: var(--good); font-family: var(--font-mono); }
.resource-capacity { font-size: 10px; color: var(--warn); font-family: var(--font-mono); }
.planet-selector { display: flex; align-items: center; gap: 12px; margin-left: auto; }

select, input[type="number"], input[type="text"], input[type="password"], .auth-form input {
    background: rgba(8,14,28,0.9); color: var(--text-bright);
    border: 1px solid var(--border); border-radius: 8px;
    font-family: var(--font-body); padding: 9px 12px; font-size: 14px;
}
select:focus, input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 10px var(--accent-glow); }
input[type="number"] { width: 80px; text-align: center; font-family: var(--font-mono); }

/* === Panels (glass cards) === */
.panel {
    background: var(--panel); backdrop-filter: blur(10px);
    border: 1px solid var(--border); border-radius: var(--radius);
    margin-bottom: 20px; overflow: hidden;
    box-shadow: 0 8px 26px rgba(0,0,0,0.35), inset 0 1px 0 rgba(255,255,255,0.04);
}
.panel-header {
    padding: 13px 18px; position: relative;
    background: linear-gradient(90deg, rgba(54,226,255,0.12), rgba(124,92,255,0.05));
    border-bottom: 1px solid var(--border-strong);
    color: var(--accent); font-size: 14px; font-weight: 700;
    text-transform: uppercase; letter-spacing: 2px;
}
.panel-header::before {
    content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
    background: var(--accent); box-shadow: 0 0 10px var(--accent);
}
.panel-content { padding: 18px; }

/* === Item list (buildings/research/ships/diplomacy) === */
.item-list { display: flex; flex-direction: column; gap: 12px; }
.item-row {
    display: flex; align-items: center; gap: 14px;
    background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));
    border: 1px solid var(--border); border-radius: 10px; padding: 14px;
    transition: all .18s;
}
.item-row:hover { border-color: var(--border-strong); box-shadow: 0 0 18px rgba(54,226,255,0.12); transform: translateY(-1px); }
.item-row.building-in-progress { border-color: var(--warn); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 6px rgba(255,181,36,0.3); } 50% { box-shadow: 0 0 18px rgba(255,181,36,0.6); } }

.item-icon {
    width: 58px; height: 58px; flex-shrink: 0; border-radius: 10px;
    display: flex; align-items: center; justify-content: center; font-size: 28px;
    background: radial-gradient(circle at 30% 30%, rgba(54,226,255,0.18), rgba(10,18,36,0.9));
    border: 1px solid var(--border);
}
.item-icon img { width: 48px; height: 48px; object-fit: contain; }
.item-info { flex: 1; min-width: 0; }
.item-name { font-size: 16px; font-weight: 600; color: var(--text-bright); margin-bottom: 4px; }
.item-level { color: var(--warn); font-size: 13px; font-weight: 600; }
.item-description { font-size: 12px; color: var(--text-dim); margin-bottom: 8px; }
.item-stats { display: flex; flex-wrap: wrap; gap: 14px; font-size: 12px; }
.item-stat { color: var(--text-dim); }
.item-stat span { color: var(--text-bright); }
.item-cost { display: flex; flex-wrap: wrap; gap: 12px; font-size: 12px; margin-top: 6px; font-family: var(--font-mono); }
.cost-item { display: flex; align-items: center; gap: 4px; }
.cost-item.affordable { color: var(--good); }
.cost-item.not-affordable { color: var(--bad); }
.item-actions { display: flex; flex-direction: column; align-items: stretch; gap: 8px; margin-left: 14px; }
.amount-input { width: 100%; min-width: 70px; }

/* Forschungsbaum: Tier-Überschriften & gesperrte Forschungen */
.research-tier-header {
    margin: 22px 0 10px; padding: 6px 12px;
    font-family: var(--font-body); font-weight: 700; font-size: 13px;
    text-transform: uppercase; letter-spacing: 2px; color: var(--accent);
    border-left: 3px solid var(--accent); background: rgba(54,226,255,0.06);
    border-radius: 0 6px 6px 0;
}
.research-tier-header:first-child { margin-top: 0; }
.item-row.research-locked { opacity: 0.55; filter: grayscale(0.35); }
.item-row.research-locked:hover { transform: none; box-shadow: none; }

/* === Buttons === */
.btn {
    padding: 10px 18px; cursor: pointer; border: 1px solid; border-radius: 8px;
    font-family: var(--font-body); font-size: 13px; font-weight: 600;
    text-transform: uppercase; letter-spacing: 1px; transition: all .18s; white-space: nowrap;
}
.btn-build {
    background: linear-gradient(180deg, rgba(54,226,255,0.16), rgba(54,226,255,0.04));
    color: var(--accent); border-color: var(--border-strong);
}
.btn-build:hover:not(:disabled) { background: var(--accent); color: #03121a; box-shadow: 0 0 16px var(--accent-glow); }
.btn-build:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-max {
    background: linear-gradient(180deg, rgba(255,181,36,0.16), rgba(255,181,36,0.04));
    color: var(--warn); border-color: rgba(255,181,36,0.5);
    padding: 7px 12px; font-size: 12px;
}
.btn-max:hover:not(:disabled) { background: var(--warn); color: #1a1200; box-shadow: 0 0 14px rgba(255,181,36,0.5); }
.btn-max:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-detail {
    background: linear-gradient(180deg, rgba(138,108,255,0.16), rgba(138,108,255,0.04));
    color: var(--accent-2); border-color: rgba(138,108,255,0.5);
    padding: 7px 12px; font-size: 12px;
}
.btn-detail:hover { background: var(--accent-2); color: #0a0518; box-shadow: 0 0 14px rgba(138,108,255,0.5); }
.btn-danger {
    background: linear-gradient(180deg, rgba(255,77,99,0.16), rgba(255,77,99,0.04));
    color: var(--bad); border-color: rgba(255,77,99,0.5);
}
.btn-danger:hover { background: var(--bad); color: #1a0306; box-shadow: 0 0 14px rgba(255,77,99,0.5); }

/* === Progress === */
.progress-container {
    width: 100%; height: 20px; position: relative;
    background: rgba(8,14,28,0.9); border: 1px solid var(--border); border-radius: 6px; overflow: hidden;
}
.progress-bar { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); box-shadow: 0 0 12px var(--accent-glow); transition: width .5s; }
.progress-text { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); font-size: 11px; font-family: var(--font-mono); color: #fff; text-shadow: 0 0 5px #000; }

/* === Galaxy === */
.galaxy-grid { display: grid; gap: 8px; }
.system-row {
    display: flex; align-items: center; gap: 12px; padding: 10px;
    background: rgba(255,255,255,0.02); border: 1px solid var(--border); border-radius: 8px;
}
.system-number { width: 64px; color: var(--accent); font-weight: 700; font-family: var(--font-mono); letter-spacing: 1px; }
.planet-slots { display: flex; gap: 6px; flex-wrap: wrap; }
.planet-slot {
    width: 40px; height: 40px; border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-size: 12px; color: var(--text-dim); cursor: pointer;
    background: rgba(8,14,28,0.6); border: 1px solid var(--border); transition: all .15s;
}
.planet-slot:hover { border-color: var(--accent); box-shadow: 0 0 10px var(--accent-glow); transform: scale(1.08); }
.planet-slot.occupied { background: radial-gradient(circle, rgba(43,255,158,0.35), rgba(10,40,28,0.7)); border-color: rgba(43,255,158,0.5); }
.planet-slot.player { background: radial-gradient(circle, var(--accent), #0a5a6a); border-color: #fff; box-shadow: 0 0 12px var(--accent-glow); }
.planet-slot.enemy { background: radial-gradient(circle, rgba(255,77,99,0.6), #3a0610); border-color: var(--bad); box-shadow: 0 0 10px rgba(255,77,99,0.4); }
.planet-slot.pirate { background: radial-gradient(circle, #6b0a14, #2a0408); border-color: var(--bad); }
.planet-slot.empire { box-shadow: 0 0 10px rgba(255,255,255,0.15); }

/* === Galaxie-Navigator (10x10 Picker) === */
.galaxy-picker {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 4px;
    max-width: 420px;
}
.gp-cell {
    aspect-ratio: 1; display: flex; align-items: center; justify-content: center;
    background: rgba(8,14,28,0.7); border: 1px solid var(--border); border-radius: 5px;
    cursor: pointer; font-size: 12px; color: var(--warn); transition: all .12s;
}
.gp-cell:hover { border-color: var(--accent); box-shadow: 0 0 8px var(--accent-glow); }
.gp-cell.active { border-color: var(--accent); background: rgba(54,226,255,0.18); box-shadow: 0 0 10px var(--accent-glow); }
.gp-cell.home { color: var(--warn); }

/* === Galaxie-Feld (255 Slots als Kugeln) === */
.galaxy-view-bg {
    background-color: #05070f;
    background-image: url('../img/galaxy-bg.jpg'),
        radial-gradient(ellipse at 55% 42%, rgba(120,150,255,0.20), transparent 60%),
        radial-gradient(ellipse at 20% 80%, rgba(54,226,255,0.12), transparent 55%);
    background-size: cover, cover, cover;
    background-position: center;
    border-radius: 0 0 var(--radius) var(--radius);
}
.galaxy-field {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(42px, 1fr));
    gap: 4px;
}
.gslot {
    aspect-ratio: 1; display: flex; align-items: center; justify-content: center;
    border-radius: 8px; cursor: pointer; transition: transform .12s, box-shadow .12s;
    border: 1px solid transparent;
}
.gslot:hover { transform: scale(1.18); z-index: 2; }
.gslot svg { display: block; filter: drop-shadow(0 0 4px rgba(0,0,0,0.6)); }
.gslot.empty { cursor: default; }
.gslot.empty::after { content: ''; width: 3px; height: 3px; border-radius: 50%; background: rgba(255,255,255,0.18); }
.gslot.s-self { box-shadow: 0 0 0 2px var(--accent), 0 0 12px var(--accent-glow); border-radius: 10px; }
.gslot.s-enemy { box-shadow: 0 0 0 2px var(--bad), 0 0 10px rgba(255,77,99,0.5); border-radius: 10px; }
.gslot.s-empire { box-shadow: 0 0 0 2px var(--accent-2); border-radius: 10px; }
.gslot.s-pirate { box-shadow: 0 0 0 2px var(--bad); background: rgba(40,4,8,0.6); border-radius: 10px; }
.gslot-emo { font-size: 22px; }

/* === Fleet === */
.fleet-mission {
    display: flex; align-items: center; gap: 20px; padding: 14px;
    background: rgba(255,255,255,0.02); border: 1px solid var(--border); border-radius: 8px; margin-bottom: 10px;
}
.fleet-ships { display: flex; gap: 10px; flex-wrap: wrap; }
.ship-count { display: flex; flex-direction: column; align-items: center; font-size: 12px; }
.ship-count .count { font-size: 16px; color: var(--accent); font-family: var(--font-mono); }

/* === Overview === */
.overview-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.planet-preview {
    width: 140px; height: 140px; border-radius: 50%; margin: 0 auto 18px;
    display: flex; align-items: center; justify-content: center; font-size: 56px; position: relative;
    box-shadow: 0 0 36px rgba(54,226,255,0.25);
}
.planet-preview::after { content: ''; position: absolute; inset: -6px; border-radius: 50%; border: 1px solid var(--border-strong); }
.queue-item {
    display: flex; align-items: center; gap: 14px; padding: 11px;
    background: rgba(255,255,255,0.03); border-left: 3px solid var(--warn); border-radius: 8px; margin-bottom: 10px;
}

/* === Aktivitäten-Übersicht === */
.activity-list { display: flex; flex-direction: column; gap: 8px; }
.activity-row {
    display: flex; align-items: center; gap: 12px; padding: 9px 12px;
    background: rgba(255,255,255,0.025); border: 1px solid var(--border);
    border-left: 3px solid var(--accent); border-radius: 8px;
}
.activity-icon { font-size: 18px; width: 24px; text-align: center; flex-shrink: 0; }
.activity-name { flex: 1; font-size: 13px; font-weight: 600; }
.activity-tag { font-size: 11px; color: var(--text-dim); }
.activity-timer { font-size: 13px; color: var(--warn); font-family: var(--font-mono); min-width: 72px; text-align: right; flex-shrink: 0; }

/* === Tabellen === */
.empire-table { width: 100%; border-collapse: collapse; }
.empire-table th, .empire-table td { padding: 10px; text-align: left; border-bottom: 1px solid var(--border); }
.empire-table th { color: var(--accent); text-transform: uppercase; font-size: 11px; letter-spacing: 1px; }
.empire-table td { font-family: var(--font-mono); font-size: 13px; }
.empire-table tr:hover td { background: rgba(54,226,255,0.05); }
.empire-planet-link { color: var(--accent); text-decoration: none; }
.empire-planet-link:hover { text-shadow: 0 0 8px var(--accent-glow); }

/* === Beziehungs-Leiste === */
.relation-bar {
    width: 100%; max-width: 280px; height: 8px; margin-top: 8px;
    background: rgba(8,14,28,0.9); border: 1px solid var(--border); border-radius: 6px; overflow: hidden;
}
.relation-fill { height: 100%; transition: width .4s, background .4s; }

/* === Detail-Chart === */
.detail-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.detail-table th, .detail-table td { padding: 6px 8px; text-align: left; border-bottom: 1px solid var(--border); }
.detail-table th { color: var(--accent); text-transform: uppercase; font-size: 11px; letter-spacing: 1px; }
.detail-table td { font-family: var(--font-mono); }
.detail-bar { position: relative; background: rgba(8,14,28,0.9); border: 1px solid var(--border); border-radius: 5px; height: 18px; min-width: 120px; overflow: hidden; }
.detail-bar-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width .3s; }
.detail-bar span { position: absolute; top: 50%; left: 6px; transform: translateY(-50%); font-size: 11px; color: #fff; text-shadow: 0 0 4px #000; }

/* === Combat-Log === */
.combat-log { font-family: var(--font-mono); font-size: 13px; background: #03060e; padding: 15px; border: 1px solid var(--border); border-radius: 8px; max-height: 400px; overflow-y: auto; }
.combat-round { margin-bottom: 15px; padding-bottom: 15px; border-bottom: 1px dashed var(--border); }
.combat-round-header { color: var(--warn); margin-bottom: 10px; }
.combat-attack { color: var(--bad); }
.combat-defense { color: var(--accent); }
.combat-result { color: var(--good); font-weight: 700; margin-top: 10px; }

/* === Messages === */
#messages { position: fixed; top: 16px; right: 16px; z-index: 1500; width: 320px; max-width: 80vw; }
.message {
    padding: 13px 15px; margin-bottom: 10px; border-left: 3px solid; border-radius: 8px;
    backdrop-filter: blur(10px); box-shadow: 0 6px 20px rgba(0,0,0,0.4);
    animation: slideIn .25s ease-out;
}
@keyframes slideIn { from { transform: translateX(20px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
.message-success { background: rgba(43,255,158,0.12); border-color: var(--good); color: var(--good); }
.message-error { background: rgba(255,77,99,0.12); border-color: var(--bad); color: var(--bad); }
.message-info { background: rgba(54,226,255,0.12); border-color: var(--accent); color: var(--accent); }

/* === Modal === */
.modal-overlay { position: fixed; inset: 0; background: rgba(2,4,10,0.78); backdrop-filter: blur(5px); display: flex; align-items: center; justify-content: center; z-index: 1000; }
.modal {
    background: var(--panel); backdrop-filter: blur(16px);
    border: 1px solid var(--border-strong); border-radius: 14px;
    padding: 28px; max-width: 600px; width: 92%; max-height: 82vh; overflow-y: auto;
    box-shadow: 0 0 50px rgba(54,226,255,0.22);
}
.modal-header { font-size: 20px; font-weight: 700; color: var(--accent); margin-bottom: 18px; padding-bottom: 12px; border-bottom: 1px solid var(--border); letter-spacing: 1px; }
.modal-footer { margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }
.modal-body ul { margin-left: 18px; }

/* === Scrollbar === */
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-track { background: rgba(8,14,28,0.6); }
::-webkit-scrollbar-thumb { background: linear-gradient(180deg, var(--accent), var(--accent-2)); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* === Tooltip === */
.tooltip { position: relative; }
.tooltip::after {
    content: attr(data-tooltip); position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%);
    background: var(--panel-solid); border: 1px solid var(--accent); border-radius: 6px; padding: 8px 12px;
    font-size: 12px; white-space: nowrap; opacity: 0; visibility: hidden; transition: all .2s; z-index: 100;
}
.tooltip:hover::after { opacity: 1; visibility: visible; }

/* === Responsive === */
@media (max-width: 820px) {
    .sidebar { width: 100%; height: auto; position: relative; }
    .main-content { margin-left: 0; }
    .game-container { flex-direction: column; }
    .overview-grid { grid-template-columns: 1fr; }
    #messages { width: auto; left: 12px; right: 12px; }
}