/* ==========================================================
   AAdvantage Credit Card Application — Stylesheet
   ========================================================== */

/* ── Reset & base ── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}


/* ── Page header ── */
.page-header {
    background: #0a1628;
    color: #fff;
    padding: 18px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.page-header p {
    font-size: 0.9rem;
    color: #8fa8c8;
    margin-top: 4px;
}

/* ── Form wrapper & card ── */
.form-wrapper {
    max-width: 780px;
    margin: 32px auto 60px;
    padding: 0 16px;
}

.form-card {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.09);
    overflow: hidden;
}

/* ── Sections ── */
.form-section {
    border-bottom: 1px solid #e8ecf1;
}

.form-section:last-child {
    border-bottom: none;
}

.section-header {
    background: #0a1628;
    color: #fff;
    padding: 13px 24px;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.section-body {
    padding: 24px 24px 20px;
}

.sub-header {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: #5a6a80;
    padding-bottom: 8px;
    border-bottom: 1px solid #e8ecf1;
    margin-bottom: 18px;
}

/* ── Grid layouts ── */
.field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px 20px;
    margin-bottom: 16px;
}

.field-row.single {
    grid-template-columns: 1fr;
}

.field-row.triple {
    grid-template-columns: 1fr 1fr 1fr;
}

/* Name row: Suffix | First | Middle | Last */
.name-row {
    display: grid;
    grid-template-columns: 90px 1fr 1fr 1fr;
    gap: 16px 14px;
    margin-bottom: 4px;
    align-items: start;
}

/* ── Utility spacing ── */
.mb-16 {
    margin-bottom: 16px;
}

.mb-24 {
    margin-bottom: 24px;
}

/* ── Field groups & labels ── */
.field-group {
    display: flex;
    flex-direction: column;
}

label {
    font-size: 0.88rem;
    font-weight: 600;
    color: #3a4a5c;
    margin-bottom: 5px;
}

.req {
    color: #d0021b;
    margin-left: 2px;
}

/* Shared help text spanning name columns on desktop */
.name-help {
    font-size: 0.78rem;
    color: #7a8fa6;
    grid-column: 2 / -1;
    line-height: 1.4;
    margin-bottom: 16px;
}

.help-text {
    font-size: 0.78rem;
    color: #7a8fa6;
    margin-top: 4px;
}

/* ── Inputs, selects, textarea ── */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid #c8d2de;
    border-radius: 5px;
    font-family: inherit;
    font-size: 1rem;
    color: #1a1a2e;
    background: #fafcff;
    transition: border-color 0.2s, box-shadow 0.2s;
    appearance: none;
    -webkit-appearance: none;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: #1560bd;
    box-shadow: 0 0 0 3px rgba(21, 96, 189, 0.12);
    background: #fff;
}

select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%235a6a80' d='M0 0l6 8 6-8z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

textarea {
    resize: vertical;
    min-height: 72px;
}

/* ── Validation ── */
.field-error input,
.field-error select,
.field-error textarea {
    border-color: #d0021b;
}

.error-msg {
    color: #d0021b;
    font-size: 0.8rem;
    margin-top: 4px;
}

/* ── Radio buttons ── */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 4px;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 1rem;
    color: #2a3a4c;
}

.radio-option input[type="radio"] {
    width: 16px;
    height: 16px;
    margin: 0;
    accent-color: #1560bd;
    cursor: pointer;
    flex-shrink: 0;
}

/* ── Citizenship "other" reveal ── */
#other-country-wrap {
    display: none;
    margin-top: 12px;
}

#other-country-wrap.visible {
    display: block;
}

/* ── Gender radios ── */
.gender-group {
    display: flex;
    gap: 20px;
    margin-top: 4px;
}

/* ── DOB three-select row ── */
.dob-selects {
    display: grid;
    grid-template-columns: 70px 1fr 90px;
    gap: 8px;
}

.dob-selects select {
    min-width: 0;
}

/* ── Alerts ── */
.alert-success {
    background: #e6f4ea;
    border: 1px solid #a8d5b2;
    color: #1b6b35;
    border-radius: 6px;
    padding: 16px 20px;
    margin-bottom: 20px;
    font-weight: 500;
}

.alert-error {
    background: #fdecea;
    border: 1px solid #f5c6c2;
    color: #a61c00;
    border-radius: 6px;
    padding: 16px 20px;
    margin-bottom: 20px;
}

/* ── Footer bar & submit ── */
.required-note {
    font-size: 0.82rem;
    color: #7a8fa6;
    padding: 10px 24px 0;
}

.required-note .req {
    font-size: 0.9rem;
}

.form-actions {
    padding: 20px 24px 24px;
    text-align: left;
    background: #f9fafc;
    border-top: 1px solid #e8ecf1;
}

.btn-submit {
    background: #1560bd;
    color: #fff;
    border: none;
    padding: 12px 36px;
    border-radius: 5px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    letter-spacing: 0.3px;
    transition: background 0.2s;
}

.btn-submit:hover {
    background: #0d4a99;
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .name-row {
        grid-template-columns: 1fr;
    }

    .name-help {
        grid-column: 1;
    }

    .field-row.triple {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .field-row {
        grid-template-columns: 1fr;
    }

    .field-row.triple {
        grid-template-columns: 1fr;
    }

    .section-body {
        padding: 18px 16px;
    }
}