* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}

body {
    background: #eef3f8;
    color: #222;
}

.page {
    max-width: 1200px;
    margin: 20px auto;
    background: #fff;
    border: 1px solid #cfd8e3;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 100px;
    padding: 15px 20px;
    border-bottom: 1px solid #d9e1ea;
    background: linear-gradient(to right, #f7fbff, #eaf3ff);
}

.logo-box {
    width: 100%;
}

.logo-img {
    max-width: 100%;
    max-height: 80px;
    display: block;
}

.svg-logo {
    font-size: 34px;
    font-weight: bold;
    color: #4aa3ff;
    text-shadow: 0 0 4px #fff, 0 0 12px #b6ddff;
    animation: glow 2s infinite alternate;
}

@keyframes glow {
    from { opacity: 0.75; transform: scale(1); }
    to { opacity: 1; transform: scale(1.02); }
}

.admin-status {
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-width: 170px;
    text-align: right;
}

.layout {
    display: flex;
    min-height: 600px;
}

.sidebar {
    width: 260px;
    background: #e9f1fb;
    border-right: 1px solid #cfd8e3;
    padding: 20px;
}

.menu {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 25px;
}

.menu a {
    display: block;
    text-decoration: none;
    color: #1a1a1a;
    padding: 10px 12px;
    background: #fff;
    border: 1px solid #ccd8e6;
    border-radius: 6px;
}

.menu a.active,
.menu a:hover {
    background: #d7e9ff;
    font-weight: bold;
}

.login-box {
    background: #fff;
    border: 1px solid #ccd8e6;
    padding: 15px;
    border-radius: 8px;
}

.login-box h3 {
    margin-bottom: 12px;
}

.login-box form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.login-box input,
.chatbot-box input,
button,
textarea {
    width: 100%;
    padding: 10px;
}

.content {
    flex: 1;
    padding: 25px;
    background: #f8fbff;
}

.content h1, .content h2 {
    margin-bottom: 18px;
}

.btn,
button {
    display: inline-block;
    background: #2e86de;
    color: white;
    text-decoration: none;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    padding: 10px 16px;
}

.small-btn {
    padding: 8px 12px;
    font-size: 14px;
}

.save-btn {
    margin-top: 15px;
    max-width: 200px;
}

.chatbot-box,
.chat-result-box,
.history-page,
.history-link-box {
    background: #fff;
    border: 1px solid #d5dfeb;
    padding: 20px;
    border-radius: 8px;
}

.bot-panel {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-top: 20px;
    align-items: flex-start;
}

.bot-avatar img {
    width: 140px;
    height: auto;
    border: 2px solid #9fc5f8;
    border-radius: 10px;
    background: #fff;
}

.history-item {
    border: 1px solid #d8e1eb;
    border-radius: 8px;
    background: #fff;
    padding: 15px;
    margin-bottom: 15px;
}

iframe {
    width: 100%;
    min-height: 420px;
    border: 0;
}