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

body {
    font-family: monospace;
    background: #1a1a2e;
    color: #e0e0e0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 16px;
}

.container {
    width: 90%;
    max-width: 800px;
    margin: 50px auto;
    padding: 30px;
}

h1,
h2 {
    text-align: center;
    margin-bottom: 25px;
    color: #00ff88;
    font-size: 28px;
}

h3 {
    margin-bottom: 12px;
    color: #00ff88;
    font-size: 20px;
}

/* Login Form */
.login-box {
    background: #16213e;
    padding: 45px 40px;
    border: 1px solid #0f3460;
    border-radius: 6px;
    margin-top: 80px;
    width: 90%;
    max-width: 480px;
}

.login-box h2 {
    color: #e94560;
    margin-bottom: 30px;
    font-size: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #a0a0a0;
    font-size: 16px;
}

.form-group input {
    width: 100%;
    padding: 14px;
    background: #0f3460;
    border: 1px solid #1a1a5e;
    color: #e0e0e0;
    font-family: monospace;
    font-size: 16px;
    border-radius: 4px;
}

.form-group input:focus {
    outline: none;
    border-color: #e94560;
}

button,
.btn {
    display: inline-block;
    padding: 14px 28px;
    background: #e94560;
    color: #fff;
    border: none;
    cursor: pointer;
    font-family: monospace;
    font-size: 16px;
    text-decoration: none;
    text-align: center;
    border-radius: 4px;
}

button:hover,
.btn:hover {
    background: #c73652;
}

.btn-block {
    display: block;
    width: 100%;
    margin-top: 10px;
}

/* Messages */
.msg-error {
    color: #ff4444;
    text-align: center;
    margin: 12px 0;
    padding: 12px;
    background: rgba(255, 68, 68, 0.1);
    border: 1px solid #ff4444;
    font-size: 15px;
}

.msg-success {
    color: #00ff88;
    text-align: center;
    margin: 12px 0;
    padding: 12px;
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid #00ff88;
    font-size: 15px;
}

.msg-info {
    color: #4488ff;
    text-align: center;
    margin: 12px 0;
    padding: 12px;
    background: rgba(68, 136, 255, 0.1);
    border: 1px solid #4488ff;
    font-size: 15px;
}

/* Dashboard */
.dashboard-msg {
    text-align: center;
    margin-top: 120px;
    color: #666;
    font-size: 22px;
}

.dashboard-msg h2 {
    font-size: 48px;
    margin-bottom: 10px;
}

/* Admin Panel Cards */
.cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 30px;
}

.card {
    background: #16213e;
    border: 1px solid #0f3460;
    padding: 30px 20px;
    text-align: center;
    cursor: pointer;
    text-decoration: none;
    color: #e0e0e0;
    transition: border-color 0.2s;
    border-radius: 6px;
}

.card:hover {
    border-color: #e94560;
}

.card h3 {
    color: #e94560;
    margin-bottom: 10px;
    font-size: 22px;
}

.card p {
    font-size: 14px;
    color: #888;
}

/* Level Pages */
.level-container {
    width: 98%;
    max-width: 1600px;
    margin: 30px auto;
    padding: 25px;
}

.level-image {
    width: 55%;
    height: auto;
    max-height: none;
    object-fit: contain;
    display: block;
    margin: 0 auto 25px;
    border: 1px solid #0f3460;
}

.input-row {
    display: flex;
    gap: 12px;
    margin-bottom: 18px;
}

.input-row input {
    flex: 1;
    padding: 14px;
    background: #0f3460;
    border: 1px solid #1a1a5e;
    color: #e0e0e0;
    font-family: monospace;
    font-size: 16px;
    border-radius: 4px;
}

.input-row input:focus {
    outline: none;
    border-color: #e94560;
}

.output-box {
    background: #0a0a1a;
    border: 1px solid #0f3460;
    padding: 18px;
    min-height: 70px;
    margin-top: 12px;
    font-size: 15px;
    white-space: pre-wrap;
    word-break: break-all;
    border-radius: 4px;
}

/* Nav */
.nav {
    width: 100%;
    background: #16213e;
    padding: 14px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #0f3460;
}

.nav a {
    color: #e94560;
    text-decoration: none;
    font-size: 15px;
}

.nav a:hover {
    text-decoration: underline;
}

.nav span {
    color: #888;
    font-size: 15px;
}