body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f4f6f8;
}

.login-body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

/* Login Card */
.login-card {
    background: white;
    width: 380px;
    padding: 35px;
    border-radius: 14px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.login-card h1 {
    margin: 0;
    color: #0b3d2e;
    font-size: 42px;
}

.login-card h3 {
    margin-top: 5px;
    color: #222;
}

.subtitle {
    color: #666;
    margin-bottom: 25px;
}

.login-card label {
    display: block;
    margin-top: 15px;
    font-weight: bold;
}

.login-card input {
    width: 100%;
    padding: 12px;
    margin-top: 6px;
    border: 1px solid #ccc;
    border-radius: 8px;
}

.login-card button {
    width: 100%;
    margin-top: 25px;
    padding: 13px;
    border: none;
    border-radius: 8px;
    background: #0b3d2e;
    color: white;
    font-size: 16px;
    cursor: pointer;
}

.error-box {
    background: #ffe5e5;
    color: #b00020;
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 15px;
}

/* Chat Page */
.chat-container {
    max-width: 950px;
    margin: 30px auto;
    background: white;
    border-radius: 14px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.10);
    overflow: hidden;
}

.chat-header {
    background: #0b3d2e;
    color: white;
    padding: 18px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-header h2 {
    margin: 0;
    font-size: 30px;
}

.chat-header p {
    margin: 3px 0 0;
}

.user-info {
    text-align: right;
}

.user-info span {
    display: block;
    font-weight: bold;
}

.user-info small {
    display: block;
    margin-bottom: 6px;
}

.user-info a {
    color: white;
    text-decoration: underline;
}

.chat-box {
    height: 470px;
    padding: 20px;
    overflow-y: auto;
    background: #f7f9fb;
}

.message {
    max-width: 70%;
    padding: 12px 15px;
    margin-bottom: 12px;
    border-radius: 14px;
    line-height: 1.5;
}

.user-message {
    background: #d9f2e6;
    margin-left: auto;
    text-align: right;
}

.bot-message {
    background: #ffffff;
    border: 1px solid #e0e0e0;
}

.typing {
    display: none;
    padding: 8px 20px;
    color: #666;
    font-style: italic;
    background: #f7f9fb;
}

.chat-input-area {
    display: flex;
    padding: 15px;
    border-top: 1px solid #ddd;
}

.chat-input-area input {
    flex: 1;
    padding: 13px;
    border: 1px solid #ccc;
    border-radius: 8px;
}

.chat-input-area button {
    margin-left: 10px;
    padding: 13px 25px;
    border: none;
    border-radius: 8px;
    background: #0b3d2e;
    color: white;
    cursor: pointer;
}

.admin-card {
    background: #f7f9fb;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    padding: 20px;
    text-align: center;
}

.admin-card h2 {
    margin: 0;
    color: #0b3d2e;
    font-size: 34px;
}

.admin-card p {
    margin-bottom: 0;
    color: #555;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.admin-table th {
    background: #0b3d2e;
    color: white;
    padding: 12px;
    text-align: left;
}

.admin-table td {
    padding: 11px;
    border-bottom: 1px solid #ddd;
    vertical-align: top;
}

.admin-btn {
    background: #0b3d2e;
    color: white;
    padding: 10px 16px;
    border-radius: 8px;
    text-decoration: none;
}

.admin-input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 8px;
    margin-top: 5px;
}