/* ─── BIRPUB Exotic Multi-Step Form v2 ─── */
.birpub-exotic-form {
    max-width: 900px;
    margin: 0 auto;
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* ─── Form Container Card ─── */
.birpub-exotic-form.frm_forms {
    background: linear-gradient(145deg, #ffffff 0%, #fafbfd 100%);
    border-radius: 24px;
    box-shadow: 0 4px 40px rgba(0,0,0,.06), 0 1px 3px rgba(0,0,0,.04), inset 0 1px 0 rgba(255,255,255,.8);
    padding: 48px 40px;
    border: 1px solid rgba(0,0,0,.04);
    position: relative;
    overflow: hidden;
}
.birpub-exotic-form.frm_forms::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #f5576c 75%, #4facfe 100%);
    background-size: 200% 100%;
    animation: birpub-grad-shift 8s ease infinite;
}
@keyframes birpub-grad-shift {
    0%,100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* ─── Form Title ─── */
.birpub-exotic-form .frm_form_title {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -.5px;
    background: linear-gradient(135deg, #1a1a2e, #16213e, #0f3460);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    text-align: center;
}
.birpub-exotic-form .frm_description {
    text-align: center;
    color: #64748b;
    font-size: 14px;
    margin-bottom: 36px;
    font-weight: 400;
}

/* ─── Progress Bar ─── */
.birpub-exotic-form .frm_rootline_group {
    margin: 0 -40px 40px -40px;
    padding: 28px 40px 24px;
    background: linear-gradient(180deg, rgba(102,126,234,.04), rgba(255,255,255,0));
    border-bottom: 1px solid rgba(0,0,0,.04);
}
.birpub-exotic-form .frm_rootline {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 0;
    position: relative;
}
.birpub-exotic-form .frm_rootline::before {
    content: '';
    position: absolute;
    top: 22px;
    left: calc(8.33% + 16px);
    right: calc(8.33% + 16px);
    height: 3px;
    background: #e2e8f0;
    border-radius: 2px;
    z-index: 0;
}
.birpub-exotic-form .frm_rootline_single {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 1;
    padding: 0 4px;
}
.birpub-exotic-form .frm_rootline_single label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 11px;
    font-weight: 500;
    color: #94a3b8;
    transition: color .3s;
    white-space: normal;
    word-break: break-word;
    line-height: 1.3;
}
.birpub-exotic-form .frm_rootline_single label::before {
    counter-increment: birpub-step;
    content: counter(birpub-step);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: #f1f5f9;
    border: 3px solid #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
    color: #94a3b8;
    transition: all .4s cubic-bezier(.4,0,.2,1);
    z-index: 1;
}
.birpub-exotic-form .frm_rootline_single.frm_page_active label { color: #667eea; }
.birpub-exotic-form .frm_rootline_single.frm_page_active label::before {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-color: #667eea;
    color: #fff;
    box-shadow: 0 4px 15px rgba(102,126,234,.35);
    transform: scale(1.05);
}
.birpub-exotic-form .frm_rootline_single.frm_page_visited label { color: #475569; }
.birpub-exotic-form .frm_rootline_single.frm_page_visited label::before {
    background: #667eea;
    border-color: #667eea;
    color: #fff;
    content: '\2713';
}

/* ─── Field Labels ─── */
.birpub-exotic-form .frm_primary_label {
    font-size: 14px;
    font-weight: 600;
    color: #334155;
    margin-bottom: 4px;
    display: block;
    letter-spacing: .1px;
}
.birpub-exotic-form .frm_required { color: #ef4444; margin-left: 2px; }

/* ─── Inputs/Selects/Textareas ─── */
.birpub-exotic-form input[type="text"],
.birpub-exotic-form input[type="email"],
.birpub-exotic-form input[type="tel"],
.birpub-exotic-form input[type="number"],
.birpub-exotic-form select,
.birpub-exotic-form textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 15px;
    font-family: inherit;
    color: #334155;
    background: #f8fafc;
    transition: all .3s ease;
    box-shadow: 0 1px 2px rgba(0,0,0,.03);
    outline: none;
    box-sizing: border-box;
}
.birpub-exotic-form textarea { resize: vertical; min-height: 120px; }
.birpub-exotic-form input:focus,
.birpub-exotic-form select:focus,
.birpub-exotic-form textarea:focus {
    border-color: #667eea;
    background: #fff;
    box-shadow: 0 0 0 4px rgba(102,126,234,.1), 0 1px 2px rgba(0,0,0,.03);
}
.birpub-exotic-form select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 44px;
    cursor: pointer;
}

/* ─── Radio / Checkbox ─── */
.birpub-exotic-form .frm_radio,
.birpub-exotic-form .frm_checkbox {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}
.birpub-exotic-form .frm_radio label,
.birpub-exotic-form .frm_checkbox label {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: #475569;
    transition: all .3s ease;
    background: #fff;
}
.birpub-exotic-form .frm_radio label:hover,
.birpub-exotic-form .frm_checkbox label:hover {
    border-color: #c4b5fd;
    background: #f5f3ff;
}
.birpub-exotic-form .frm_radio input[type="radio"],
.birpub-exotic-form .frm_checkbox input[type="checkbox"] {
    accent-color: #667eea;
    width: 18px;
    height: 18px;
}
.birpub-exotic-form .frm_radio label:has(input:checked),
.birpub-exotic-form .frm_checkbox label:has(input:checked) {
    border-color: #667eea;
    background: linear-gradient(135deg, rgba(102,126,234,.08), rgba(118,75,162,.06));
    color: #667eea;
}

/* ─── File Upload ─── */
.birpub-exotic-form .frm_file_container {
    position: relative;
    border: 2px dashed #cbd5e1;
    border-radius: 16px;
    padding: 36px 24px;
    text-align: center;
    background: linear-gradient(135deg, #f8fafc, #f1f5f9);
    transition: all .3s ease;
    cursor: pointer;
}
.birpub-exotic-form .frm_file_container:hover {
    border-color: #667eea;
    background: linear-gradient(135deg, rgba(102,126,234,.06), rgba(118,75,162,.04));
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(102,126,234,.1);
}
.birpub-exotic-form input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

/* ─── Repeating Section (Co-Authors) ─── */
.birpub-exotic-form .frm_repeat_sec {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    padding: 0;
    margin-bottom: 14px;
    position: relative;
    overflow: hidden;
    transition: all .3s ease;
    box-shadow: 0 1px 3px rgba(0,0,0,.04);
}
.birpub-exotic-form .frm_repeat_sec:hover {
    border-color: #c4b5fd;
    box-shadow: 0 4px 16px rgba(102,126,234,.08);
}

/* Author card header - collapsible toggle */
.birpub-exotic-form .frm_repeat_sec::before {
    content: 'Author #' attr(data-index);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 20px;
    background: linear-gradient(135deg, #f8fafc, #f0f4ff);
    border-bottom: 1px solid #e2e8f0;
    font-size: 15px;
    font-weight: 600;
    color: #334155;
    cursor: pointer;
    user-select: none;
    transition: background .2s;
}
.birpub-exotic-form .frm_repeat_sec::before span {
    margin-left: auto;
    font-size: 12px;
    color: #94a3b8;
    font-weight: 400;
}

/* Author card body */
.birpub-exotic-form .frm_repeat_sec .frm_form_field {
    padding: 0 20px;
    margin-bottom: 14px;
}
.birpub-exotic-form .frm_repeat_sec .frm_form_field:first-of-type {
    padding-top: 16px;
}

/* Author card action bar */
.birpub-exotic-form .frm_repeat_sec .frm_repeat_buttons {
    display: flex;
    gap: 8px;
    padding: 12px 20px;
    border-top: 1px solid #f1f5f9;
    background: #fafbfd;
    justify-content: flex-end;
}

/* Add Author Button - styled as a beautiful dashed card */
.birpub-exotic-form .frm_repeat_sec:last-of-type {
    background: transparent;
    border: 2px dashed #cbd5e1;
    box-shadow: none;
}
.birpub-exotic-form .frm_repeat_sec:last-of-type:hover {
    border-color: #667eea;
    background: linear-gradient(135deg, rgba(102,126,234,.03), rgba(118,75,162,.02));
}
.birpub-exotic-form .frm_repeat_sec:last-of-type::before {
    content: '+ Add Another Author';
    background: transparent;
    border-bottom: none;
    color: #667eea;
    font-size: 15px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 20px;
}
.birpub-exotic-form .frm_repeat_sec:last-of-type::after {
    content: '';
    position: absolute;
    inset: 0;
    cursor: pointer;
    z-index: 1;
}

/* Style the Formidable add/remove buttons as icons */
.birpub-exotic-form .frm_add_form_row {
    display: inline-flex !important;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, #667eea, #764ba2) !important;
    color: #fff !important;
    border: none !important;
    padding: 9px 20px !important;
    border-radius: 8px !important;
    font-size: 13px !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    transition: all .3s ease !important;
    font-family: inherit !important;
    text-decoration: none !important;
}
.birpub-exotic-form .frm_add_form_row::before {
    content: '+';
    font-size: 16px;
    font-weight: 700;
}
.birpub-exotic-form .frm_add_form_row:hover {
    transform: translateY(-1px) !important;
    box-shadow: 0 4px 12px rgba(102,126,234,.35) !important;
}

/* Remove button */
.birpub-exotic-form .frm_remove_form_row {
    display: inline-flex !important;
    align-items: center;
    gap: 6px;
    background: #fff !important;
    color: #ef4444 !important;
    border: 2px solid #fecaca !important;
    padding: 7px 16px !important;
    border-radius: 8px !important;
    font-size: 12px !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    transition: all .3s ease !important;
    font-family: inherit !important;
    text-decoration: none !important;
}
.birpub-exotic-form .frm_remove_form_row::before {
    content: '\00D7';
    font-size: 16px;
    font-weight: 700;
}
.birpub-exotic-form .frm_remove_form_row:hover {
    background: #fef2f2 !important;
    border-color: #ef4444 !important;
    transform: translateY(-1px) !important;
}

/* Hide the default divider description that acts as repeating label */
.birpub-exotic-form .frm_section_heading + .frm_repeat_sec {
    margin-top: 0;
}

/* Author card -- compact name fields side by side */
.birpub-exotic-form .frm_repeat_sec .frm_name_field {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

/* Collapse animation - hide all but last (add) card */
.birpub-exotic-form .frm_repeat_sec:not(:last-of-type) .frm_form_field {
    opacity: 1;
    max-height: 800px;
    transition: all .4s ease;
}
.birpub-exotic-form .frm_repeat_sec.collapsed:not(:last-of-type) .frm_form_field,
.birpub-exotic-form .frm_repeat_sec.collapsed:not(:last-of-type) .frm_repeat_buttons {
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    padding-top: 0;
    padding-bottom: 0;
    margin-bottom: 0;
}
.birpub-exotic-form .frm_repeat_sec.collapsed:not(:last-of-type)::after {
    content: '(click to expand)';
    position: absolute;
    right: 20px;
    top: 14px;
    font-size: 12px;
    color: #94a3b8;
    font-style: italic;
}

/* Number authors dynamically */
.birpub-exotic-form .frm_repeat_sec:nth-of-type(1)::before { content: 'Corresponding Author'; }
.birpub-exotic-form .frm_repeat_sec:nth-of-type(2)::before { content: 'Author #2'; }
.birpub-exotic-form .frm_repeat_sec:nth-of-type(3)::before { content: 'Author #3'; }
.birpub-exotic-form .frm_repeat_sec:nth-of-type(4)::before { content: 'Author #4'; }
.birpub-exotic-form .frm_repeat_sec:nth-of-type(5)::before { content: 'Author #5'; }
.birpub-exotic-form .frm_repeat_sec:nth-of-type(6)::before { content: 'Author #6'; }
.birpub-exotic-form .frm_repeat_sec:nth-of-type(1)::before {
    background: linear-gradient(135deg, #eef2ff, #e0e7ff);
    border-bottom: 2px solid #667eea;
    color: #4338ca;
}

/* ─── Name Field (multi-input) ─── */
.birpub-exotic-form .frm_name_field {
    display: flex;
    gap: 12px;
}
.birpub-exotic-form .frm_name_field input { flex: 1; }

/* ─── Buttons ─── */
.birpub-exotic-form .frm_submit {
    text-align: center;
    margin-top: 32px;
}
.birpub-exotic-form .frm_button_submit {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
    border: none;
    padding: 16px 48px;
    font-size: 17px;
    font-weight: 600;
    border-radius: 14px;
    cursor: pointer;
    transition: all .3s ease;
    box-shadow: 0 4px 20px rgba(102,126,234,.3);
    letter-spacing: .3px;
    font-family: inherit;
}
.birpub-exotic-form .frm_button_submit::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,.15), transparent 60%);
    pointer-events: none;
}
.birpub-exotic-form .frm_button_submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(102,126,234,.4);
}
.birpub-exotic-form .frm_button_submit:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(102,126,234,.3);
}
.birpub-exotic-form .frm_prev_page {
    background: #fff;
    color: #64748b;
    border: 2px solid #e2e8f0;
    padding: 14px 36px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 14px;
    cursor: pointer;
    transition: all .3s ease;
    margin-right: 12px;
    font-family: inherit;
}
.birpub-exotic-form .frm_prev_page:hover {
    border-color: #cbd5e1;
    color: #334155;
    background: #f8fafc;
}

/* ─── Page transitions ─── */
.birpub-exotic-form .frm_page {
    animation: birpub-fade-up .5s ease;
}
@keyframes birpub-fade-up {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ─── Validation errors ─── */
.birpub-exotic-form .frm_error {
    color: #dc2626;
    font-size: 13px;
    font-weight: 500;
    margin-top: 4px;
}
.birpub-exotic-form .frm_blank_field input,
.birpub-exotic-form .frm_blank_field select,
.birpub-exotic-form .frm_blank_field textarea {
    border-color: #fca5a5;
    background: #fef2f2;
}

/* ─── Success message ─── */
.birpub-exotic-form .frm_message {
    background: linear-gradient(135deg, #ecfdf5, #d1fae5);
    border: 1px solid #6ee7b7;
    border-radius: 16px;
    padding: 24px;
    text-align: center;
    font-size: 16px;
    font-weight: 500;
    color: #065f46;
}

/* ─── Autocomplete dropdown ─── */
.birpub-exotic-form .frm_autocomplete_results {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,.12);
    border: 1px solid #e2e8f0;
}
.birpub-exotic-form .frm_autocomplete_results li {
    padding: 12px 16px;
    cursor: pointer;
    transition: background .15s;
    font-size: 14px;
    color: #334155;
}
.birpub-exotic-form .frm_autocomplete_results li:hover,
.birpub-exotic-form .frm_autocomplete_results li.frm-selected {
    background: linear-gradient(135deg, rgba(102,126,234,.08), rgba(118,75,162,.06));
}

/* ─── Field descriptions ─── */
.birpub-exotic-form .frm_form_field > .frm_description {
    font-size: 13px;
    color: #94a3b8;
    margin-top: 2px;
    margin-bottom: 6px;
    font-style: italic;
}

/* ─── Progress text ─── */
.birpub-exotic-form .frm_percent_complete {
    font-size: 13px;
    font-weight: 600;
    color: #667eea;
    text-align: right;
    margin-top: 6px;
}
.birpub-exotic-form .frm_pages_complete {
    font-size: 13px;
    color: #94a3b8;
    text-align: right;
    margin-top: 2px;
}

/* ─── Divider section heading ─── */
.birpub-exotic-form .frm_section_heading {
    font-size: 18px;
    font-weight: 700;
    color: #1a1a2e;
    margin: 24px 0 16px;
    padding: 12px 0 8px;
    border-bottom: 2px solid #667eea;
}

/* ─── Mobile ─── */
@media (max-width: 640px) {
    .birpub-exotic-form.frm_forms {
        padding: 24px 16px;
        border-radius: 16px;
    }
    .birpub-exotic-form .frm_rootline_group {
        margin: 0 -16px 24px -16px;
        padding: 16px 12px 16px;
    }
    .birpub-exotic-form .frm_rootline_single label { font-size: 9px; }
    .birpub-exotic-form .frm_rootline_single label::before {
        width: 28px; height: 28px; font-size: 12px;
    }
    .birpub-exotic-form .frm_rootline::before { top: 14px; }
    .birpub-exotic-form .frm_name_field { flex-direction: column; }
}