/* ================================================================
   Research Portal — Public Form CSS
   Aesthetic: Refined Academic Luxury
   Fonts: Cormorant Garamond (display) + DM Sans (body)
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=DM+Sans:wght@300;400;500;600&display=swap');

:root {
    --rp-ink:        #0e1117;
    --rp-ink-2:      #3a3d4a;
    --rp-ink-3:      #7a7d8a;
    --rp-surface:    #ffffff;
    --rp-bg:         #f7f5f0;
    --rp-border:     #e2ddd6;
    --rp-border-f:   #b5a99a;
    --rp-gold:       #c8a96e;
    --rp-gold-dark:  #a8863e;
    --rp-navy:       #1a2340;
    --rp-navy-l:     #2a3560;
    --rp-success:    #2d6a4f;
    --rp-error:      #9b1c1c;
    --rp-focus:      rgba(200,169,110,.35);
    --rp-radius:     6px;
    --rp-radius-lg:  12px;
    --rp-shadow:     0 1px 3px rgba(14,17,23,.06), 0 8px 32px rgba(14,17,23,.08);
    --rp-shadow-lg:  0 2px 8px rgba(14,17,23,.06), 0 20px 60px rgba(14,17,23,.12);
    --rp-font-disp:  'Cormorant Garamond', Georgia, serif;
    --rp-font-body:  'DM Sans', system-ui, sans-serif;
    --rp-transition: 200ms cubic-bezier(.4,0,.2,1);
}

/* ── Root & layout ──────────────────────────────────────────────── */
.rp-root {
    font-family: var(--rp-font-body);
    color: var(--rp-ink);
    max-width: 860px;
    margin: 0 auto;
    padding: 0 0 80px;
    background: transparent;
    -webkit-font-smoothing: antialiased;
}

/* ── Portal Header ──────────────────────────────────────────────── */
.rp-portal-header {
    text-align: center;
    padding: 64px 32px 48px;
    background: var(--rp-navy);
    border-radius: var(--rp-radius-lg);
    margin-bottom: 0;
    position: relative;
    overflow: hidden;
}
.rp-portal-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 50% at 50% -10%, rgba(200,169,110,.18) 0%, transparent 70%),
        radial-gradient(ellipse 40% 30% at 90% 110%, rgba(200,169,110,.10) 0%, transparent 60%);
    pointer-events: none;
}
.rp-institution {
    font-family: var(--rp-font-body);
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--rp-gold);
    margin-bottom: 16px;
}
.rp-portal-title {
    font-family: var(--rp-font-disp);
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 600;
    color: #fff;
    margin: 0 0 4px;
    line-height: 1.15;
    letter-spacing: -.01em;
}
.rp-portal-subtitle {
    font-family: var(--rp-font-disp);
    font-style: italic;
    font-size: 1.15rem;
    color: var(--rp-gold);
    margin: 0 0 24px;
}
.rp-intro-text {
    font-size: .9rem;
    color: rgba(255,255,255,.65);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ── Step rail ──────────────────────────────────────────────────── */
.rp-steprail {
    display: flex;
    align-items: center;
    background: var(--rp-surface);
    border: 1px solid var(--rp-border);
    border-top: none;
    border-radius: 0 0 var(--rp-radius-lg) var(--rp-radius-lg);
    padding: 0 24px;
    overflow-x: auto;
    scrollbar-width: none;
    box-shadow: var(--rp-shadow);
    margin-bottom: 32px;
}
.rp-steprail::-webkit-scrollbar { display: none; }
.rp-steprail__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 18px 12px;
    background: none;
    border: none;
    cursor: pointer;
    flex-shrink: 0;
    min-width: 80px;
    transition: var(--rp-transition);
    position: relative;
}
.rp-steprail__item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--rp-gold);
    transition: width var(--rp-transition);
}
.rp-steprail__item.active::after { width: 60%; }
.rp-steprail__circle {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #f0ede8;
    color: var(--rp-ink-3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .8rem;
    font-weight: 700;
    transition: var(--rp-transition);
    flex-shrink: 0;
}
.rp-steprail__circle svg { width: 14px; height: 14px; }
.rp-steprail__item.active .rp-steprail__circle {
    background: var(--rp-navy);
    color: #fff;
    box-shadow: 0 0 0 4px rgba(26,35,64,.12);
}
.rp-steprail__item.done .rp-steprail__circle {
    background: var(--rp-gold);
    color: #fff;
}
.rp-steprail__label {
    font-size: .65rem;
    font-weight: 500;
    letter-spacing: .04em;
    text-transform: uppercase;
    color: var(--rp-ink-3);
    text-align: center;
    transition: var(--rp-transition);
    line-height: 1.3;
}
.rp-steprail__item.active .rp-steprail__label { color: var(--rp-navy); font-weight: 600; }
.rp-steprail__item.done .rp-steprail__label  { color: var(--rp-gold-dark); }
.rp-steprail__line {
    flex: 1;
    height: 1px;
    background: var(--rp-border);
    min-width: 16px;
    transition: background var(--rp-transition);
}
.rp-steprail__line.done { background: var(--rp-gold); }

/* ── Toast ──────────────────────────────────────────────────────── */
.rp-toast {
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: 9999;
    background: var(--rp-ink);
    color: #fff;
    padding: 12px 20px;
    border-radius: var(--rp-radius);
    font-size: .875rem;
    font-weight: 500;
    opacity: 0;
    transform: translateY(8px);
    transition: all .3s;
    pointer-events: none;
    max-width: 320px;
    box-shadow: var(--rp-shadow-lg);
}
.rp-toast.is-visible { opacity: 1; transform: translateY(0); }
.rp-toast--success { background: var(--rp-success); }
.rp-toast--error   { background: var(--rp-error); }

/* ── Error box ──────────────────────────────────────────────────── */
.rp-errors {
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-left: 4px solid var(--rp-error);
    border-radius: var(--rp-radius);
    padding: 16px 20px;
    margin-bottom: 24px;
    font-size: .875rem;
    color: var(--rp-error);
    line-height: 1.6;
}
.rp-errors ul { margin: 8px 0 0; padding-left: 20px; }
.rp-errors li { margin-bottom: 4px; }

/* ── Step sections ──────────────────────────────────────────────── */
.rp-step {
    display: none;
    background: var(--rp-surface);
    border: 1px solid var(--rp-border);
    border-radius: var(--rp-radius-lg);
    box-shadow: var(--rp-shadow);
    overflow: hidden;
    animation: rp-step-in .3s ease;
}
.rp-step.is-active { display: block; }
@keyframes rp-step-in {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}
.rp-step__head {
    padding: 32px 40px 28px;
    border-bottom: 1px solid var(--rp-border);
    background: linear-gradient(135deg, #faf9f6 0%, #f5f2ec 100%);
    position: relative;
}
.rp-step__head::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 4px;
    background: linear-gradient(to bottom, var(--rp-gold), var(--rp-gold-dark));
    border-radius: 0 2px 2px 0;
}
.rp-step__counter {
    font-size: .7rem;
    font-weight: 600;
    letter-spacing: .15em;
    text-transform: uppercase;
    color: var(--rp-gold-dark);
    margin-bottom: 6px;
}
.rp-step__title {
    font-family: var(--rp-font-disp);
    font-size: 1.7rem;
    font-weight: 600;
    color: var(--rp-navy);
    margin: 0;
    line-height: 1.2;
}

/* ── Fields grid ────────────────────────────────────────────────── */
.rp-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px 32px;
    padding: 36px 40px;
}
.rp-field { display: flex; flex-direction: column; gap: 8px; }
.rp-field--wide { grid-column: 1 / -1; }

/* ── Labels ─────────────────────────────────────────────────────── */
.rp-label {
    font-size: .8rem;
    font-weight: 600;
    letter-spacing: .03em;
    color: var(--rp-ink-2);
    display: flex;
    align-items: center;
    gap: 4px;
}
.rp-req { color: var(--rp-gold-dark); font-size: .9em; }

/* ── Inputs ─────────────────────────────────────────────────────── */
.rp-input,
.rp-textarea,
.rp-select {
    width: 100%;
    padding: 11px 14px;
    border: 1.5px solid var(--rp-border);
    border-radius: var(--rp-radius);
    font-family: var(--rp-font-body);
    font-size: .9rem;
    color: var(--rp-ink);
    background: var(--rp-surface);
    transition: border-color var(--rp-transition), box-shadow var(--rp-transition);
    outline: none;
    box-sizing: border-box;
    appearance: none;
    -webkit-appearance: none;
}
.rp-select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%237a7d8a'%3E%3Cpath fill-rule='evenodd' d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 40px;
    cursor: pointer;
}
.rp-input:focus,
.rp-textarea:focus,
.rp-select:focus {
    border-color: var(--rp-gold);
    box-shadow: 0 0 0 3px var(--rp-focus);
}
.rp-input::placeholder,
.rp-textarea::placeholder { color: var(--rp-ink-3); }
.rp-textarea {
    resize: vertical;
    min-height: 110px;
    line-height: 1.6;
}
.rp-input[type="date"] { cursor: pointer; }

/* ── Radio group ────────────────────────────────────────────────── */
.rp-radio-group { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 2px; }
.rp-radio-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    border: 1.5px solid var(--rp-border);
    border-radius: 20px;
    cursor: pointer;
    font-size: .85rem;
    color: var(--rp-ink-2);
    transition: var(--rp-transition);
    user-select: none;
}
.rp-radio-label:hover { border-color: var(--rp-gold); background: #faf8f2; }
.rp-radio-label input[type="radio"] { position: absolute; opacity: 0; width: 0; height: 0; }
.rp-radio-label:has(input:checked) {
    border-color: var(--rp-gold);
    background: #fdf9f0;
    color: var(--rp-gold-dark);
    font-weight: 500;
}

/* ── Checkbox ───────────────────────────────────────────────────── */
.rp-checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
    user-select: none;
}
.rp-checkbox-label input[type="checkbox"] { position: absolute; opacity: 0; width: 0; height: 0; }
.rp-checkbox-box {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    border: 2px solid var(--rp-border);
    border-radius: 4px;
    background: var(--rp-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--rp-transition);
    margin-top: 1px;
}
.rp-checkbox-label:has(input:checked) .rp-checkbox-box {
    background: var(--rp-gold);
    border-color: var(--rp-gold);
}
.rp-checkbox-label:has(input:checked) .rp-checkbox-box::after {
    content: '';
    width: 5px; height: 9px;
    border: 2px solid #fff;
    border-top: none; border-left: none;
    transform: rotate(45deg) translateY(-1px);
    display: block;
}
.rp-checkbox-text {
    font-size: .88rem;
    color: var(--rp-ink-2);
    line-height: 1.6;
}

/* ── File upload ────────────────────────────────────────────────── */
.rp-upload { position: relative; }
.rp-upload__dropzone {
    border: 2px dashed var(--rp-border);
    border-radius: var(--rp-radius);
    padding: 28px 24px;
    text-align: center;
    background: #faf9f6;
    cursor: pointer;
    transition: var(--rp-transition);
    position: relative;
}
.rp-upload__dropzone:hover,
.rp-upload__dropzone.is-over {
    border-color: var(--rp-gold);
    background: #fdf9f0;
}
.rp-upload__dropzone.is-hidden { display: none; }
.rp-upload__icon-lg { margin: 0 auto 12px; width: 40px; color: var(--rp-ink-3); }
.rp-upload__icon-lg svg { width: 100%; height: 100%; }
.rp-upload__hint { font-size: .875rem; color: var(--rp-ink-2); margin: 0 0 4px; }
.rp-upload__browse { color: var(--rp-gold-dark); font-weight: 600; text-decoration: underline; cursor: pointer; }
.rp-upload__formats { font-size: .75rem; color: var(--rp-ink-3); margin: 0; }
.rp-file-input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
    width: 100%;
    height: 100%;
}
.rp-upload__done {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: #f0faf4;
    border: 1.5px solid #a7f3d0;
    border-radius: var(--rp-radius);
    margin-bottom: 8px;
}
.rp-upload__icon { color: var(--rp-success); flex-shrink: 0; }
.rp-upload__icon svg { width: 20px; height: 20px; }
.rp-upload__file-info { display: flex; align-items: center; gap: 8px; flex: 1; min-width: 0; }
.rp-upload__filename { font-size: .85rem; font-weight: 500; color: var(--rp-success); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rp-upload__size { font-size: .75rem; color: var(--rp-ink-3); flex-shrink: 0; }
.rp-upload__replace {
    flex-shrink: 0;
    background: none;
    border: 1px solid #6ee7b7;
    color: var(--rp-success);
    padding: 4px 12px;
    border-radius: 4px;
    font-size: .75rem;
    cursor: pointer;
    transition: var(--rp-transition);
}
.rp-upload__replace:hover { background: #d1fae5; }
.rp-upload__progress {
    height: 4px;
    background: var(--rp-border);
    border-radius: 4px;
    overflow: hidden;
    margin-top: 8px;
}
.rp-upload__progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--rp-gold), var(--rp-gold-dark));
    width: 0;
    transition: width .3s;
    border-radius: 4px;
}

/* ── Step navigation ────────────────────────────────────────────── */
.rp-step-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 24px 40px;
    border-top: 1px solid var(--rp-border);
    background: #faf9f6;
}

/* ── Buttons ────────────────────────────────────────────────────── */
.rp-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: var(--rp-radius);
    font-family: var(--rp-font-body);
    font-size: .875rem;
    font-weight: 500;
    cursor: pointer;
    border: 1.5px solid transparent;
    text-decoration: none;
    transition: var(--rp-transition);
    white-space: nowrap;
}
.rp-btn svg { width: 16px; height: 16px; flex-shrink: 0; }

.rp-btn--primary {
    background: var(--rp-navy);
    color: #fff;
    border-color: var(--rp-navy);
}
.rp-btn--primary:hover { background: var(--rp-navy-l); border-color: var(--rp-navy-l); }

.rp-btn--ghost {
    background: transparent;
    color: var(--rp-ink-2);
    border-color: var(--rp-border);
}
.rp-btn--ghost:hover { border-color: var(--rp-border-f); background: #f5f2ec; color: var(--rp-ink); }

.rp-btn--submit {
    background: linear-gradient(135deg, var(--rp-gold) 0%, var(--rp-gold-dark) 100%);
    color: #fff;
    border-color: var(--rp-gold-dark);
    font-weight: 600;
    font-size: .95rem;
    padding: 12px 28px;
    letter-spacing: .01em;
    box-shadow: 0 4px 14px rgba(168,134,62,.3);
}
.rp-btn--submit:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(168,134,62,.4); }
.rp-btn--submit:active { transform: translateY(0); }
.rp-btn--submit:disabled { opacity: .6; cursor: not-allowed; transform: none; }

/* ── Success state ──────────────────────────────────────────────── */
.rp-success-state {
    text-align: center;
    padding: 80px 40px;
    background: var(--rp-surface);
    border: 1px solid var(--rp-border);
    border-radius: var(--rp-radius-lg);
    box-shadow: var(--rp-shadow);
    max-width: 600px;
    margin: 40px auto;
}
.rp-success-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    background: #d1fae5;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--rp-success);
}
.rp-success-icon svg { width: 36px; height: 36px; }
.rp-success-state h2 {
    font-family: var(--rp-font-disp);
    font-size: 2rem;
    font-weight: 600;
    color: var(--rp-navy);
    margin: 0 0 12px;
}
.rp-success-state p { color: var(--rp-ink-2); font-size: .95rem; line-height: 1.7; }
.rp-success-note {
    font-size: .85rem !important;
    color: var(--rp-ink-3) !important;
    margin-top: 16px;
}
.rp-empty-step { padding: 24px 40px; color: var(--rp-ink-3); font-style: italic; }

/* ── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 700px) {
    .rp-portal-header { padding: 40px 20px 36px; }
    .rp-grid { grid-template-columns: 1fr; padding: 24px 20px; gap: 20px; }
    .rp-field--wide { grid-column: 1; }
    .rp-step__head { padding: 24px 20px 20px; }
    .rp-step-nav { padding: 18px 20px; flex-wrap: wrap; }
    .rp-btn--ghost[data-step] { order: 3; }
    .rp-steprail__label { display: none; }
    .rp-steprail__item { min-width: 44px; }
}