/* ════════════════════════════════════════════════════════════════════════════
   Radbrook Dental – Referral Form Styles
   Palette: Navy #1a3a5c  |  Teal/Cyan #00b5c8  |  White #ffffff
   ════════════════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700;800&family=Open+Sans:wght@300;400;600&display=swap');

/* ── CSS variables ──────────────────────────────────────────────────────────── */
.rdp-referral-wrap {
    --navy:      #1a3a5c;
    --navy-lt:   #1e4a73;
    --teal:      #00b5c8;
    --teal-lt:   #33c8d9;
    --teal-pale: #e6f8fa;
    --white:     #ffffff;
    --light-bg:  #f5fbfc;
    --text:      #1a3a5c;
    --muted:     #6b8097;
    --border:    #c2dfe5;
    --radius:    4px;
    --shadow:    0 4px 24px rgba(26,58,92,.10);
    --trans:     .2s cubic-bezier(.4,0,.2,1);

    font-family: 'Open Sans', sans-serif;
    color: var(--text);
    width: 100%;
    margin: 0 0 60px;
    padding: 0;
    box-sizing: border-box;
}

/* ── Header ─────────────────────────────────────────────────────────────────── */
.rdp-form-header {
    background: var(--navy);
    color: var(--white);
    text-align: center;
    padding: 56px 48px 48px;
    position: relative;
    overflow: hidden;
}
.rdp-form-header::before {
    content: '';
    position: absolute;
    bottom: -60px;
    left: -80px;
    width: 340px;
    height: 340px;
    border-radius: 50%;
    background: rgba(0,181,200,.12);
    pointer-events: none;
}
.rdp-form-header::after {
    content: '';
    position: absolute;
    top: -80px;
    right: -60px;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: rgba(0,181,200,.08);
    pointer-events: none;
}
.rdp-form-header-icon {
    font-size: 36px;
    margin-bottom: 14px;
    position: relative;
    z-index: 1;
}
.rdp-form-header h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: .02em;
    text-transform: uppercase;
    margin: 0 0 10px;
    color: var(--white);
    position: relative;
    z-index: 1;
}
.rdp-form-header h2::after {
    content: '';
    display: block;
    width: 56px;
    height: 3px;
    background: var(--teal);
    margin: 12px auto 0;
    border-radius: 2px;
}
.rdp-form-header p {
    font-size: .9rem;
    font-weight: 300;
    color: rgba(255,255,255,.7);
    margin: 14px 0 0;
    position: relative;
    z-index: 1;
}
.rdp-req { color: var(--teal-lt); font-weight: 700; }

/* ── Alerts ─────────────────────────────────────────────────────────────────── */
.rdp-alert {
    padding: 18px 28px;
    margin: 0;
    font-size: .92rem;
    font-weight: 400;
    border-left: 5px solid;
}
.rdp-alert-success {
    background: #e8f8f1;
    border-color: #27ae60;
    color: #1a6e3c;
}
.rdp-alert-error {
    background: #fdecea;
    border-color: #e74c3c;
    color: #a93226;
}

/* ── Sections ───────────────────────────────────────────────────────────────── */
.rdp-section {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 40px 48px;
    transition: background var(--trans);
}
.rdp-section:nth-child(odd) { background: var(--light-bg); }
.rdp-section:last-of-type { border-bottom: none; }

.rdp-section-label {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--teal-pale);
}
.rdp-section-num {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--teal);
    line-height: 1;
    min-width: 40px;
}
.rdp-section-label h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.05rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--navy);
    margin: 0 0 5px;
}
.rdp-section-label p {
    font-size: .82rem;
    color: var(--muted);
    margin: 0;
}

/* ── Grid ───────────────────────────────────────────────────────────────────── */
.rdp-fields {
    max-width: 900px;
}
.rdp-row { display: flex; gap: 24px; }
.rdp-col-2 > .rdp-field { flex: 1; }
.rdp-col-half { max-width: calc(50% - 12px); }

@media (max-width: 640px) {
    .rdp-row { flex-direction: column; gap: 0; }
    .rdp-col-half { max-width: 100%; }
}

/* ── Fields ─────────────────────────────────────────────────────────────────── */
.rdp-field {
    display: flex;
    flex-direction: column;
    margin-bottom: 20px;
}
.rdp-field label {
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--navy);
    margin-bottom: 8px;
}
.rdp-field input,
.rdp-field textarea,
.rdp-field select {
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 16px;
    font-size: .92rem;
    font-family: 'Open Sans', sans-serif;
    color: var(--text);
    background: var(--white);
    outline: none;
    transition: border-color var(--trans), box-shadow var(--trans);
    width: 100%;
    box-sizing: border-box;
    -webkit-appearance: none;
}
.rdp-field input:focus,
.rdp-field textarea:focus {
    border-color: var(--teal);
    box-shadow: 0 0 0 3px rgba(0,181,200,.15);
}
.rdp-field input::placeholder,
.rdp-field textarea::placeholder {
    color: #b0c4cc;
    font-style: italic;
    font-weight: 300;
}
.rdp-field textarea { resize: vertical; min-height: 100px; }

/* ── Upload zone ────────────────────────────────────────────────────────────── */
.rdp-section-upload { background: var(--teal-pale) !important; }
.rdp-upload-zone {
    border: 2px dashed var(--teal);
    border-radius: var(--radius);
    background: rgba(255,255,255,.8);
    text-align: center;
    padding: 40px 28px;
    cursor: pointer;
    transition: border-color var(--trans), background var(--trans);
    position: relative;
    max-width: 900px;
}
.rdp-upload-zone.rdp-drag-over {
    border-color: var(--navy);
    background: rgba(0,181,200,.08);
}
.rdp-upload-zone input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
    width: 100%;
    height: 100%;
}
.rdp-upload-icon { font-size: 2.4rem; margin-bottom: 12px; }
.rdp-upload-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--navy);
    margin: 0 0 8px;
}
.rdp-upload-sub {
    font-size: .88rem;
    color: var(--muted);
    margin: 0 0 8px;
}
.rdp-upload-browse {
    color: var(--teal);
    font-weight: 700;
    cursor: pointer;
    text-decoration: underline;
    pointer-events: none;
}
.rdp-upload-hint {
    font-size: .76rem;
    color: var(--muted);
    margin: 0;
}

/* ── File preview list ──────────────────────────────────────────────────────── */
.rdp-file-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 16px;
    max-width: 900px;
}
.rdp-file-item {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--navy);
    color: var(--white);
    border-radius: var(--radius);
    padding: 8px 14px;
    font-size: .8rem;
    max-width: 240px;
    overflow: hidden;
}
.rdp-file-item span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
}
.rdp-file-remove {
    background: none;
    border: none;
    color: rgba(255,255,255,.55);
    cursor: pointer;
    font-size: 1rem;
    padding: 0 0 0 4px;
    line-height: 1;
    flex-shrink: 0;
}
.rdp-file-remove:hover { color: #e74c3c; }

/* ── Submit row ─────────────────────────────────────────────────────────────── */
.rdp-submit-row {
    background: var(--navy);
    padding: 32px 48px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.rdp-submit-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--teal);
    color: var(--white);
    border: none;
    border-radius: var(--radius);
    padding: 16px 48px;
    font-family: 'Montserrat', sans-serif;
    font-size: .85rem;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background var(--trans), transform var(--trans), box-shadow var(--trans);
    white-space: nowrap;
}
.rdp-submit-btn:hover:not(:disabled) {
    background: var(--teal-lt);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,181,200,.35);
}
.rdp-submit-btn:disabled {
    opacity: .65;
    cursor: not-allowed;
}
.rdp-btn-loader { animation: rdp-spin .8s linear infinite; }
@keyframes rdp-spin { to { transform: rotate(360deg); } }

/* ── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .rdp-form-header { padding: 36px 20px 32px; }
    .rdp-form-header h2 { font-size: 1.6rem; }
    .rdp-section { padding: 28px 20px; }
    .rdp-submit-row { padding: 24px 20px; }
    .rdp-submit-btn { width: 100%; justify-content: center; }
    .rdp-fields { max-width: 100%; }
    .rdp-upload-zone { max-width: 100%; }
    .rdp-file-list { max-width: 100%; }
}