body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

nav {
    background-color: #E36F73;
    color: #FFFFFF;
    padding: 1rem 2rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

nav div {
    font-size: 20px;
    font-weight: bold;
}

main {
    padding: 2rem;
    max-width: 800px;
    margin: 0 auto;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    margin-top: 2rem;
}

main h1 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

main p {
    line-height: 1.6;
    font-size: 16px;
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
}
.brand-logo {
    height: 32px;
    vertical-align: middle;
}
.page-title {
    margin-left: auto;
    font-weight: bold;
}

.divider {
    margin: 2rem 0;
    border: 0;
    border-top: 1px solid #e6e6e6;
}

.section-card {
    padding: 1.25rem 1.25rem 1.5rem;
    border: 1px solid #eef1f2;
    border-radius: 8px;
    background: #fafcfd;
}
.section-title {
    margin-top: 0;
    margin-bottom: .75rem;
    color: #2c3e50;
}
.section-list {
    margin: .5rem 0 1rem 1.25rem;
}

.form {
    margin-top: 1rem;
}
.form-group {
    margin-bottom: .9rem;
}
.form-group label {
    display: block;
    font-size: .95rem;
    margin-bottom: .35rem;
    color: #2c3e50;
}
.input,
.textarea {
    width: 100%;
    padding: .6rem .7rem;
    border: 1px solid #d9e1e5;
    border-radius: 6px;
    outline: none;
    background: #fff;
    color: #333;
    transition: border-color .2s, box-shadow .2s;
    font: inherit;
}
.input:focus,
.textarea:focus {
    border-color: #E36F73;
    box-shadow: 0 0 0 3px rgba(227, 111, 115, .15);
}
.form-check {
    margin: .6rem 0 1rem;
    font-size: .95rem;
}

.btn {
    display: inline-block;
    padding: .6rem 1rem;
    border-radius: 6px;
    border: 1px solid transparent;
    cursor: pointer;
    font-weight: 600;
    transition: background-color .2s, box-shadow .2s, transform .02s;
}
.btn:active {
    transform: translateY(1px);
}
.btn-primary {
    background: #E36F73;
    color: #fff;
    border-color: #E36F73;
}
.btn-primary:hover {
    background: #d85c61;
    border-color: #d85c61;
}

.messages {
    margin-top: 1rem;
}
.message {
    padding: .6rem .8rem;
    border-radius: 6px;
    margin-bottom: .5rem;
    border: 1px solid #e6e6e6;
    background: #fff;
}
.message.success {
    border-color: #c7eed8;
    background: #eafaf1;
    color: #1e6f43;
}
.message.error {
    border-color: #f5c6cb;
    background: #f8d7da;
    color: #721c24;
}
.message.info {
    border-color: #bee5eb;
    background: #d1ecf1;
    color: #0c5460;
}