/* ============================================================
   NUTRIBE Partnership Form — Front-End Styles
   Matches Nutribe brand: Instrument Sans + Gold (#C08F0C) palette
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Instrument+Sans:ital,wght@0,400..700;1,400..700&display=swap');

/* ── CSS Custom Properties ────────────────────────────────── */
.ntb-pf-wrap {
    --ntb-gold:         #C08F0C;
    --ntb-gold-dark:    #9a720a;
    --ntb-gold-light:   #e8b820;
    --ntb-gold-muted:   #fdf8e7;
    --ntb-gold-border:  rgba(192,143,12,.3);
    --ntb-dark:         #111827;
    --ntb-dark-alt:     #1e293b;
    --ntb-text:         #1f2937;
    --ntb-text-muted:   #6b7280;
    --ntb-bg:           #f9fafb;
    --ntb-white:        #ffffff;
    --ntb-border:       #e5e7eb;
    --ntb-success:      #10b981;
    --ntb-danger:       #ef4444;
    --ntb-radius:       10px;
    --ntb-radius-sm:    6px;
    --ntb-shadow:       0 4px 24px rgba(0,0,0,.08);
    --ntb-transition:   0.2s ease;

    font-family: 'Instrument Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--ntb-text);
    line-height: 1.6;
}

/* ── Wrapper & Card ───────────────────────────────────────── */
.ntb-pf-wrap {
    max-width: 780px;
    margin: 2.5rem auto;
    padding: 0 1rem;
}

.ntb-pf-card {
    background: var(--ntb-white);
    border-radius: 16px;
    border: 1px solid var(--ntb-border);
    box-shadow: var(--ntb-shadow);
    overflow: hidden;
}

/* ── Header ───────────────────────────────────────────────── */
.ntb-pf-header {
    background: linear-gradient(135deg, var(--ntb-dark) 0%, var(--ntb-dark-alt) 100%);
    padding: 2.5rem 2rem 2rem;
    position: relative;
    overflow: hidden;
}

.ntb-pf-header::before {
    content: '';
    position: absolute;
    top: -40px;
    right: -40px;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: rgba(192,143,12,.12);
    pointer-events: none;
}

.ntb-pf-header::after {
    content: '';
    position: absolute;
    bottom: -30px;
    left: 40px;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: rgba(192,143,12,.07);
    pointer-events: none;
}

.ntb-pf-logo-row {
    margin-bottom: 1.25rem;
}

.ntb-pf-brand-accent {
    width: 48px;
    height: 4px;
    background: linear-gradient(90deg, var(--ntb-gold-light), var(--ntb-gold));
    border-radius: 999px;
}

.ntb-pf-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: #ffffff;
    margin: 0 0 .5rem;
    letter-spacing: -.02em;
}

.ntb-pf-subtitle {
    font-size: .9375rem;
    color: rgba(255,255,255,.72);
    margin: 0;
    max-width: 520px;
}

/* ── Form body ────────────────────────────────────────────── */
.ntb-pf-form {
    padding: 2rem;
}

/* ── Alert ────────────────────────────────────────────────── */
.ntb-pf-alert {
    display: flex;
    align-items: flex-start;
    gap: .625rem;
    padding: .875rem 1rem;
    border-radius: var(--ntb-radius-sm);
    font-size: .875rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid transparent;
}

.ntb-pf-alert-error {
    background: #fef2f2;
    border-left-color: var(--ntb-danger);
    color: #991b1b;
}

.ntb-pf-alert-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    margin-top: 1px;
}

/* ── Fieldsets ────────────────────────────────────────────── */
.ntb-pf-fieldset {
    border: none;
    padding: 0;
    margin: 0 0 2rem;
}

.ntb-pf-fieldset-last {
    margin-bottom: 0;
}

.ntb-pf-legend {
    display: flex;
    align-items: center;
    gap: .625rem;
    font-size: 1rem;
    font-weight: 700;
    color: var(--ntb-dark);
    margin-bottom: 1.25rem;
    padding-bottom: .5rem;
    border-bottom: 2px solid var(--ntb-border);
    width: 100%;
}

.ntb-pf-legend-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--ntb-gold);
    color: #fff;
    font-size: .75rem;
    font-weight: 700;
    flex-shrink: 0;
}

/* ── Rows & Fields ────────────────────────────────────────── */
.ntb-pf-row {
    display: grid;
    gap: 1.25rem;
    margin-bottom: 1.25rem;
}

.ntb-pf-row-2 {
    grid-template-columns: 1fr 1fr;
}

@media (max-width: 600px) {
    .ntb-pf-row-2 { grid-template-columns: 1fr; }
    .ntb-pf-form  { padding: 1.5rem; }
    .ntb-pf-header { padding: 1.75rem 1.5rem 1.5rem; }
    .ntb-pf-title  { font-size: 1.375rem; }
}

.ntb-pf-field {
    display: flex;
    flex-direction: column;
    gap: .375rem;
}

.ntb-pf-label {
    font-size: .875rem;
    font-weight: 600;
    color: var(--ntb-dark);
    display: flex;
    align-items: center;
    gap: .25rem;
    flex-wrap: wrap;
}

.ntb-pf-required {
    color: var(--ntb-danger);
    font-weight: 700;
}

.ntb-pf-optional {
    font-size: .75rem;
    font-weight: 400;
    color: var(--ntb-text-muted);
}

.ntb-pf-field-hint {
    font-size: .8125rem;
    color: var(--ntb-text-muted);
    margin: -.5rem 0 .875rem;
}

/* ── Inputs ───────────────────────────────────────────────── */
.ntb-pf-input {
    font-family: inherit;
    font-size: .9375rem;
    color: var(--ntb-text);
    background: var(--ntb-white);
    border: 1.5px solid var(--ntb-border);
    border-radius: var(--ntb-radius-sm);
    padding: .625rem .875rem;
    width: 100%;
    transition: border-color var(--ntb-transition), box-shadow var(--ntb-transition);
    outline: none;
    line-height: 1.5;
}

.ntb-pf-input:focus {
    border-color: var(--ntb-gold);
    box-shadow: 0 0 0 3px rgba(192,143,12,.18);
}

.ntb-pf-input::placeholder {
    color: #adb5bd;
}

.ntb-pf-textarea {
    resize: vertical;
    min-height: 100px;
}

.ntb-pf-char-count {
    font-size: .75rem;
    color: var(--ntb-text-muted);
    text-align: right;
    margin-top: .25rem;
}

/* ── Checkbox Grid ────────────────────────────────────────── */
.ntb-pf-checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: .625rem;
}

.ntb-pf-checkbox-item {
    display: flex;
    align-items: center;
    gap: .625rem;
    padding: .6rem .875rem;
    border: 1.5px solid var(--ntb-border);
    border-radius: var(--ntb-radius-sm);
    cursor: pointer;
    transition: border-color var(--ntb-transition), background var(--ntb-transition);
    user-select: none;
}

.ntb-pf-checkbox-item:hover {
    border-color: var(--ntb-gold-border);
    background: var(--ntb-gold-muted);
}

.ntb-pf-checkbox-item:has(.ntb-pf-checkbox:checked) {
    border-color: var(--ntb-gold);
    background: var(--ntb-gold-muted);
}

.ntb-pf-checkbox {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.ntb-pf-checkbox-box {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border: 2px solid var(--ntb-border);
    border-radius: 4px;
    flex-shrink: 0;
    background: var(--ntb-white);
    transition: background var(--ntb-transition), border-color var(--ntb-transition);
}

.ntb-pf-checkbox-item:has(.ntb-pf-checkbox:checked) .ntb-pf-checkbox-box {
    background: var(--ntb-gold);
    border-color: var(--ntb-gold);
}

.ntb-pf-check-svg {
    width: 10px;
    height: 10px;
    color: #fff;
    opacity: 0;
    transition: opacity var(--ntb-transition);
}

.ntb-pf-checkbox-item:has(.ntb-pf-checkbox:checked) .ntb-pf-check-svg {
    opacity: 1;
}

.ntb-pf-checkbox-label {
    font-size: .875rem;
    font-weight: 500;
    color: var(--ntb-text);
}

/* Other text reveal */
.ntb-pf-other-field {
    margin-top: .75rem;
}

.ntb-pf-other-input {
    max-width: 420px;
}

/* ── Radio Buttons ────────────────────────────────────────── */
.ntb-pf-radio-group {
    margin-bottom: 1.25rem;
}

.ntb-pf-radio-row {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: .5rem;
}

.ntb-pf-radio-item {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .5rem .875rem;
    border: 1.5px solid var(--ntb-border);
    border-radius: 999px;
    cursor: pointer;
    font-size: .875rem;
    font-weight: 500;
    color: var(--ntb-text);
    transition: border-color var(--ntb-transition), background var(--ntb-transition);
    user-select: none;
}

.ntb-pf-radio-item:hover {
    border-color: var(--ntb-gold-border);
    background: var(--ntb-gold-muted);
}

.ntb-pf-radio-item:has(.ntb-pf-radio:checked) {
    border-color: var(--ntb-gold);
    background: var(--ntb-gold-muted);
    color: var(--ntb-gold-dark);
}

.ntb-pf-radio {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.ntb-pf-radio-indicator {
    width: 16px;
    height: 16px;
    border: 2px solid var(--ntb-border);
    border-radius: 50%;
    flex-shrink: 0;
    background: var(--ntb-white);
    transition: border-color var(--ntb-transition), box-shadow var(--ntb-transition);
}

.ntb-pf-radio-item:has(.ntb-pf-radio:checked) .ntb-pf-radio-indicator {
    border-color: var(--ntb-gold);
    box-shadow: inset 0 0 0 3px var(--ntb-gold);
}

/* ── GDPR Box ─────────────────────────────────────────────── */
.ntb-pf-gdpr-box {
    background: #fffdf5;
    border: 1.5px solid var(--ntb-gold-border);
    border-radius: var(--ntb-radius-sm);
    padding: 1.125rem 1.25rem;
    margin-top: .5rem;
}

.ntb-pf-gdpr-label {
    display: flex;
    align-items: flex-start;
    gap: .625rem;
    cursor: pointer;
    margin-bottom: .625rem;
    font-size: .9375rem;
    font-weight: 600;
    color: var(--ntb-dark);
}

.ntb-pf-gdpr-box-check {
    margin-top: 2px;
    flex-shrink: 0;
}

.ntb-pf-gdpr-description {
    font-size: .8125rem;
    color: var(--ntb-text-muted);
    margin: 0;
    line-height: 1.55;
    padding-left: 1.5rem;
}

/* ── Submit Row ───────────────────────────────────────────── */
.ntb-pf-submit-row {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--ntb-border);
    display: flex;
    justify-content: flex-end;
}

.ntb-pf-btn-submit {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    background: linear-gradient(135deg, var(--ntb-gold-light), var(--ntb-gold));
    color: #fff;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 700;
    padding: .75rem 2.25rem;
    border: none;
    border-radius: 999px;
    cursor: pointer;
    transition: background var(--ntb-transition), transform var(--ntb-transition), box-shadow var(--ntb-transition);
    letter-spacing: .01em;
    box-shadow: 0 4px 16px rgba(192,143,12,.35);
    position: relative;
    overflow: hidden;
}

.ntb-pf-btn-submit:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--ntb-gold), var(--ntb-gold-dark));
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(192,143,12,.45);
}

.ntb-pf-btn-submit:active:not(:disabled) {
    transform: translateY(0);
}

.ntb-pf-btn-submit:disabled {
    opacity: .7;
    cursor: not-allowed;
}

/* Spinner */
.ntb-pf-btn-spinner {
    display: none;
    width: 18px;
    height: 18px;
    border: 2.5px solid rgba(255,255,255,.4);
    border-top-color: #fff;
    border-radius: 50%;
    animation: ntb-pf-spin 0.7s linear infinite;
}

.ntb-pf-btn-submit.is-loading .ntb-pf-btn-spinner {
    display: block;
}

@keyframes ntb-pf-spin {
    to { transform: rotate(360deg); }
}

/* ── Success Panel ────────────────────────────────────────── */
.ntb-pf-success {
    padding: 3.5rem 2rem;
    text-align: center;
}

.ntb-pf-success-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.25rem;
    color: var(--ntb-gold);
    animation: ntb-pf-pop .4s cubic-bezier(.22,1,.36,1);
}

@keyframes ntb-pf-pop {
    from { opacity:0; transform: scale(.5); }
    to   { opacity:1; transform: scale(1); }
}

.ntb-pf-success-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--ntb-dark);
    margin-bottom: .625rem;
}

.ntb-pf-success-body {
    font-size: .9375rem;
    color: var(--ntb-text-muted);
    max-width: 480px;
    margin: 0 auto;
    line-height: 1.65;
}

/* ── Field-level validation errors ───────────────────────── */
.ntb-pf-input.ntb-pf-input-error {
    border-color: var(--ntb-danger);
    box-shadow: 0 0 0 3px rgba(239,68,68,.15);
}

.ntb-pf-field-error {
    display: block;
    font-size: .8rem;
    color: var(--ntb-danger);
    margin-top: .25rem;
    font-weight: 500;
}

/* ── WP admin bar spacing ─────────────────────────────────── */
.admin-bar .ntb-pf-wrap {
    margin-top: 2rem;
}