:root {
    --primary: #0f766e;
    --primary-dark: #0b5f59;
    --ink: #18242d;
    --muted: #6a7781;
    --line: #e2e8ea;
    --page: #f5f8f8;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; margin: 0; }
body {
    color: var(--ink);
    background: var(--page);
    font-family: "Be Vietnam Pro", system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
}
button, input, select { font: inherit; }

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--ink);
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
}
.brand span {
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    border-radius: 10px 10px 10px 3px;
    color: white;
    background: linear-gradient(145deg, var(--primary), #159c8f);
}

.login-page {
    display: grid;
    min-height: 100vh;
    padding: 24px;
    place-items: center;
    background:
        radial-gradient(circle at 15% 15%, rgba(15,118,110,.09), transparent 30%),
        radial-gradient(circle at 85% 85%, rgba(214,168,75,.09), transparent 30%),
        var(--page);
}
.login-card {
    width: min(410px, 100%);
    padding: 34px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: #fff;
    box-shadow: 0 18px 60px rgba(27,54,51,.1);
}
.login-heading { margin: 34px 0 23px; }
.login-heading h1 { margin: 0 0 8px; font-size: 24px; }
.login-heading p, .panel-heading p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.6; }
.login-card form { display: grid; gap: 9px; }
.login-help { margin: 18px 0 0; color: #8a959d; font-size: 10px; text-align: center; }
.login-help code { color: var(--primary-dark); }

label { font-size: 11px; font-weight: 600; }
input, select {
    width: 100%;
    height: 43px;
    padding: 0 12px;
    border: 1px solid #d8e0e2;
    border-radius: 9px;
    outline: none;
    color: var(--ink);
    background: #fff;
    font-size: 12px;
    transition: border .2s, box-shadow .2s;
}
input:focus, select:focus {
    border-color: #8bc3bc;
    box-shadow: 0 0 0 3px rgba(15,118,110,.08);
}
.primary-button {
    min-height: 43px;
    padding: 0 20px;
    border: 0;
    border-radius: 9px;
    color: #fff;
    background: var(--primary);
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
}
.primary-button:hover { background: var(--primary-dark); }
.login-card .primary-button { margin-top: 8px; }

.admin-shell { display: flex; min-height: 100vh; }
.admin-shell aside {
    position: fixed;
    inset: 0 auto 0 0;
    display: flex;
    flex-direction: column;
    width: 240px;
    padding: 24px 17px;
    border-right: 1px solid var(--line);
    background: #fff;
}
.admin-shell nav { display: grid; gap: 5px; margin-top: 38px; }
.admin-shell nav a {
    padding: 12px 13px;
    border-radius: 8px;
    color: #5b6872;
    font-size: 12px;
    text-decoration: none;
}
.admin-shell nav a.active {
    color: var(--primary-dark);
    background: #edf7f5;
    font-weight: 600;
}
.logout-form { margin-top: auto; }
.logout-form button {
    width: 100%;
    padding: 11px;
    border: 1px solid var(--line);
    border-radius: 8px;
    color: #69757e;
    background: #fff;
    cursor: pointer;
    font-size: 11px;
}

.admin-main {
    width: calc(100% - 240px);
    max-width: 1100px;
    margin-left: 240px;
    padding: 38px 46px 60px;
}
.admin-main header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
}
.admin-main header p { margin: 0 0 7px; color: var(--primary); font-size: 9px; font-weight: 700; letter-spacing: 1.3px; }
.admin-main h1 { margin: 0; font-size: 25px; letter-spacing: -.4px; }
.view-site { color: var(--primary-dark); font-size: 11px; font-weight: 600; text-decoration: none; }
.settings-form { display: grid; gap: 17px; }

.panel {
    padding: 25px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #fff;
}
.panel-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #edf0f1;
}
.panel-heading h2 { margin: 0 0 6px; font-size: 15px; }
.connection-status {
    flex: none;
    padding: 5px 9px;
    border-radius: 20px;
    color: #8b6d32;
    background: #faf2df;
    font-size: 9px;
    font-weight: 600;
}
.connection-status.connected { color: #176a50; background: #e7f6ef; }
.field { display: grid; gap: 8px; margin-top: 19px; }
.field small { color: #88939a; font-size: 9px; line-height: 1.55; }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.password-field { position: relative; }
.password-field input { padding-right: 62px; }
.password-field button {
    position: absolute;
    top: 5px;
    right: 5px;
    height: 33px;
    padding: 0 11px;
    border: 0;
    border-radius: 6px;
    color: var(--primary-dark);
    background: #edf6f4;
    cursor: pointer;
    font-size: 9px;
}
.check-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 14px;
    color: #6a5555;
    font-weight: 400;
}
.check-row input { width: 15px; height: 15px; accent-color: #a84949; }
.form-actions { display: flex; justify-content: flex-end; }

.alert {
    margin-bottom: 17px;
    padding: 11px 14px;
    border: 1px solid;
    border-radius: 9px;
    font-size: 10px;
    line-height: 1.55;
}
.alert.error { color: #873636; border-color: #efcccc; background: #fff0f0; }
.alert.warning { color: #7a5d25; border-color: #ead8ab; background: #fff9e9; }
.alert.success { color: #17644e; border-color: #bfe2d4; background: #ecf9f4; }

@media (max-width: 760px) {
    .admin-shell { display: block; }
    .admin-shell aside {
        position: static;
        width: 100%;
        height: auto;
        padding: 15px 18px;
        flex-direction: row;
        align-items: center;
    }
    .admin-shell nav { display: none; }
    .logout-form { margin: 0 0 0 auto; }
    .logout-form button { padding-inline: 14px; }
    .admin-main { width: 100%; margin: 0; padding: 25px 16px 45px; }
    .admin-main header { align-items: flex-end; }
    .admin-main h1 { font-size: 20px; }
    .panel { padding: 19px; }
    .field-grid { grid-template-columns: 1fr; gap: 0; }
}