:root {
    --navy: #183854;
    --navy-dark: #102b42;
    --teal: #147b72;
    --teal-dark: #10655e;
    --yellow: #f2b544;
    --text: #273846;
    --muted: #667783;
    --soft: #f3f7f8;
    --border: #dce6e9;
    --white: #ffffff;
    --danger: #b42318;
}

* {
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--soft);
    color: var(--text);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.5;
}

a {
    color: var(--teal);
}

.app-shell {
    width: 100%;
    max-width: 480px;
    min-height: 100vh;
    margin: 0 auto;
    padding: 24px 18px 40px;
}

.brand {
    margin-bottom: 32px;
    color: var(--navy);
    font-size: 25px;
    font-weight: 700;
}

.eyebrow {
    margin-bottom: 8px;
    color: var(--teal);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
}

h1 {
    margin: 0 0 14px;
    color: var(--navy);
    font-size: 32px;
    line-height: 1.15;
}

h2 {
    margin: 0 0 12px;
    color: var(--navy);
    font-size: 23px;
}

p {
    margin-top: 0;
}

.lead {
    margin-bottom: 28px;
    color: var(--muted);
    font-size: 17px;
}

.card {
    margin-bottom: 16px;
    padding: 20px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 16px;
}

.field {
    margin-bottom: 18px;
}

label {
    display: block;
    margin-bottom: 7px;
    color: var(--navy-dark);
    font-size: 14px;
    font-weight: 700;
}

input,
select {
    width: 100%;
    min-height: 50px;
    padding: 12px 14px;
    border: 1px solid #bdcbd1;
    border-radius: 11px;
    background: var(--white);
    color: var(--text);
    font: inherit;
}

input:focus,
select:focus {
    border-color: var(--teal);
    outline: 3px solid rgba(20, 123, 114, .12);
}

.btn {
    display: flex;
    width: 100%;
    min-height: 52px;
    align-items: center;
    justify-content: center;
    padding: 12px 18px;
    border: 0;
    border-radius: 12px;
    background: var(--teal);
    color: var(--white);
    font-size: 16px;
    font-weight: 700;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
}

.btn:hover {
    background: var(--teal-dark);
}

.btn-secondary {
    background: var(--white);
    border: 1px solid var(--border);
    color: var(--navy);
}

.btn-secondary:hover {
    background: var(--soft);
}

.actions {
    display: grid;
    gap: 12px;
}

.alert {
    margin-bottom: 18px;
    padding: 13px 15px;
    border-radius: 10px;
    font-size: 14px;
}

.alert-error {
    background: #fff1f0;
    color: var(--danger);
}

.alert-success {
    background: #ecf8f5;
    color: var(--teal-dark);
}

.helper {
    color: var(--muted);
    font-size: 13px;
}

.center {
    text-align: center;
}

.meta-box {
    padding: 22px;
    background: var(--navy);
    border-radius: 16px;
    color: var(--white);
}

.meta-label {
    opacity: .8;
    font-size: 14px;
}

.meta-value {
    margin: 3px 0;
    font-size: 34px;
    font-weight: 700;
}

.meta-detail {
    opacity: .92;
    font-size: 15px;
}

.recommended {
    border-left: 4px solid var(--yellow);
}

.logout {
    display: inline-block;
    margin-top: 24px;
    color: var(--muted);
    font-size: 14px;
}

@media (min-width: 700px) {
    .app-shell {
        padding-top: 48px;
    }
}