:root {
    --bg-deep: #070709;
    --bg-card: #111116;
    --bg-hover: #191922;
    --red-primary: #ff1e38;
    --red-glow: rgba(255, 30, 56, 0.35);
    --text-main: #f0f0f5;
    --text-muted: #8b8b9e;
    --border-color: #22222f;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', sans-serif;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-deep);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

.auth-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: radial-gradient(circle at center, #14141c 0%, var(--bg-deep) 100%);
    padding: 20px;
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 30px;
    width: 100%;
    max-width: 360px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 15px var(--red-glow);
}

.auth-header {
    text-align: center;
    margin-bottom: 25px;
}

.auth-subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-top: 5px;
    font-family: 'Orbitron', sans-serif;
}

.auth-error {
    color: var(--red-primary);
    font-size: 0.8rem;
    text-align: center;
    margin-bottom: 12px;
    font-family: 'Courier New', Courier, monospace;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.input-group label {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 0.5px;
}

.auth-input {
    background: var(--bg-deep);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 0.9rem;
    width: 100%;
    transition: all 0.3s ease;
}

.auth-input:focus {
    outline: none;
    border-color: var(--red-primary);
    box-shadow: 0 0 8px var(--red-glow);
}

.auth-btn {
    width: 100%;
    justify-content: center;
    text-align: center;
    margin-top: 5px;
    padding: 10px;
    font-size: 0.85rem;
}

.auth-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.auth-footer a {
    color: var(--red-primary);
    text-decoration: none;
    font-weight: 600;
}

.auth-footer a:hover {
    text-decoration: underline;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    background: rgba(11, 11, 15, 0.95);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-family: 'Orbitron', sans-serif;
    font-weight: 800;
    font-size: 1.3rem;
    color: var(--text-main);
    letter-spacing: 2px;
}

.logo span {
    color: var(--red-primary);
    text-shadow: 0 0 10px var(--red-glow);
}

.stats-bar {
    display: flex;
    gap: 10px;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.8rem;
    flex-wrap: wrap;
}

.stat-item {
    background: var(--bg-card);
    padding: 6px 10px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.stat-item span {
    color: var(--red-primary);
    font-weight: 600;
}

main {
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 30px 20px;
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 25px;
}

@media (max-width: 850px) {
    main {
        grid-template-columns: 1fr;
        padding: 15px 10px;
    }
    header {
        padding: 15px;
        flex-direction: column;
        gap: 10px;
    }
}

.sidebar {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.nav-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 14px 18px;
    border-radius: 8px;
    cursor: pointer;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.85rem;
    text-align: left;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 48px;
}

.nav-btn:hover, .nav-btn.active {
    background: var(--bg-hover);
    border-color: var(--red-primary);
    box-shadow: 0 0 15px var(--red-glow);
    color: var(--red-primary);
}

.content-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 25px;
    min-height: 480px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

@media (max-width: 850px) {
    .content-panel {
        padding: 15px;
    }
}

.panel-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-main);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 8px;
}

.panel-title span {
    color: var(--red-primary);
}

.game-screen {
    display: none;
}

.game-screen.active {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.action-btn {
    background: var(--red-primary);
    color: white;
    border: none;
    padding: 10px 20px;
    font-family: 'Orbitron', sans-serif;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 0 10px var(--red-glow);
    align-self: flex-start;
    min-height: 40px;
}

.action-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 20px var(--red-primary);
}

.game-select {
    background: var(--bg-deep);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 10px;
    border-radius: 6px;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.85rem;
    margin-bottom: 15px;
    width: 100%;
    max-width: 300px;
}

.log-box {
    background: var(--bg-deep);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 15px;
    height: 160px;
    overflow-y: auto;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.log-box p {
    margin-bottom: 5px;
}

.log-box p.highlight {
    color: var(--red-primary);
}

.inventory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 12px;
}

.inventory-item {
    background: var(--bg-deep);
    border: 1px solid var(--border-color);
    padding: 12px;
    border-radius: 8px;
    text-align: center;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.75rem;
    color: var(--text-main);
}