/* =========================================================================
   Bohillebrand Fragebogen – Vertical Timeline Design
   Matches the "Clean Airy" theme design system
   ========================================================================= */

.bhf-wizard {
    --bhf-blue: var(--blue, #2563eb);
    --bhf-blue-50: var(--blue-50, #eff6ff);
    --bhf-blue-100: var(--blue-100, #dbeafe);
    --bhf-blue-200: var(--blue-200, #bfdbfe);
    --bhf-blue-400: var(--blue-400, #60a5fa);
    --bhf-blue-700: var(--blue-700, #1d4ed8);
    --bhf-white: var(--white, #ffffff);
    --bhf-gray-50: var(--gray-50, #f8fafc);
    --bhf-gray-100: var(--gray-100, #f1f5f9);
    --bhf-gray-200: var(--gray-200, #e2e8f0);
    --bhf-gray-300: var(--gray-300, #cbd5e1);
    --bhf-gray-400: var(--gray-400, #94a3b8);
    --bhf-gray-500: var(--gray-500, #64748b);
    --bhf-gray-700: var(--gray-700, #334155);
    --bhf-gray-900: var(--gray-900, #0f172a);
    --bhf-green: #22c55e;
    --bhf-green-50: #f0fdf4;
    --bhf-radius: var(--radius, 16px);
    --bhf-radius-sm: var(--radius-sm, 10px);
    --bhf-transition: all .35s cubic-bezier(.22,1,.36,1);

    max-width: 760px;
    margin: 3rem auto;
    font-family: inherit;
}

/* =========================================================================
   HEADER
   ========================================================================= */
.bhf-header {
    text-align: center;
    margin-bottom: 2.5rem;
}
.bhf-header-title {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--bhf-gray-900);
    margin-bottom: .4rem;
    letter-spacing: -.02em;
}
.bhf-header-desc {
    font-size: .9rem;
    color: var(--bhf-gray-500);
    line-height: 1.6;
    max-width: 540px;
    margin: 0 auto;
}

/* =========================================================================
   TIMELINE STRUCTURE
   ========================================================================= */
.bhf-timeline {
    position: relative;
    padding-left: 3rem;
}

/* Vertical connecting line */
.bhf-timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 4px;
    bottom: 4px;
    width: 2px;
    background: var(--bhf-gray-200);
    border-radius: 2px;
}

/* =========================================================================
   TIMELINE STEP
   ========================================================================= */
.bhf-tl-step {
    position: relative;
    margin-bottom: 1rem;
}
.bhf-tl-step:last-child {
    margin-bottom: 0;
}

/* =========================================================================
   MARKER (circle on timeline)
   ========================================================================= */
.bhf-tl-marker {
    position: absolute;
    left: -3rem;
    top: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bhf-white);
    border: 2px solid var(--bhf-gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    transition: var(--bhf-transition);
}
.bhf-tl-marker-num {
    font-size: .75rem;
    font-weight: 800;
    color: var(--bhf-gray-400);
    transition: var(--bhf-transition);
}
.bhf-tl-marker-check,
.bhf-tl-marker-send {
    display: none;
}

/* Active state */
.bhf-tl-step--active .bhf-tl-marker {
    background: var(--bhf-blue);
    border-color: var(--bhf-blue);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, .15);
}
.bhf-tl-step--active .bhf-tl-marker-num {
    color: var(--bhf-white);
}

/* Done state */
.bhf-tl-step--done .bhf-tl-marker {
    background: var(--bhf-green);
    border-color: var(--bhf-green);
}
.bhf-tl-step--done .bhf-tl-marker-num { display: none; }
.bhf-tl-step--done .bhf-tl-marker-check { display: block; color: white; }

/* Confirm step marker */
.bhf-tl-step--confirm .bhf-tl-marker-send { display: block; }

.bhf-tl-step--confirm.bhf-tl-step--active .bhf-tl-marker-send { color: white; }

/* =========================================================================
   CONTENT PANEL
   ========================================================================= */
.bhf-tl-content {
    background: var(--bhf-gray-50);
    border: 1px solid var(--bhf-gray-200);
    border-radius: 14px;
    transition: var(--bhf-transition);
    overflow: hidden;
}

/* Active: elevated card */
.bhf-tl-step--active .bhf-tl-content {
    background: var(--bhf-white);
    border-color: var(--bhf-blue-200);
    box-shadow: 0 4px 20px rgba(37, 99, 235, .08), 0 1px 3px rgba(0,0,0,.04);
}

/* Done: muted */
.bhf-tl-step--done .bhf-tl-content {
    background: var(--bhf-green-50);
    border-color: #bbf7d0;
}

/* =========================================================================
   STEP HEADER (always visible)
   ========================================================================= */
.bhf-tl-header {
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: .75rem;
    cursor: pointer;
}
.bhf-tl-title {
    font-size: .95rem;
    font-weight: 700;
    color: var(--bhf-gray-900);
    flex: 1;
    transition: var(--bhf-transition);
}
.bhf-tl-desc {
    display: none;
}
.bhf-tl-step--active .bhf-tl-desc {
    display: block;
}

/* Status badge (shown when done) */
.bhf-tl-status {
    display: none;
    font-size: .7rem;
    font-weight: 700;
    color: var(--bhf-green);
    background: #dcfce7;
    padding: .2rem .6rem;
    border-radius: 100px;
    letter-spacing: .04em;
    white-space: nowrap;
}
.bhf-tl-step--done .bhf-tl-status {
    display: inline-block;
}

/* Inactive steps: dimmed title */
.bhf-tl-step:not(.bhf-tl-step--active):not(.bhf-tl-step--done) .bhf-tl-title {
    color: var(--bhf-gray-400);
}

/* Active header has extra spacing for desc */
.bhf-tl-step--active .bhf-tl-header {
    flex-direction: column;
    align-items: flex-start;
    padding-bottom: .5rem;
}
.bhf-tl-step--active .bhf-tl-title {
    font-size: 1.1rem;
}
.bhf-tl-step--active .bhf-tl-desc {
    font-size: .82rem;
    color: var(--bhf-gray-500);
    line-height: 1.5;
    margin-top: .15rem;
}

/* =========================================================================
   STEP BODY (fields + actions — collapsible)
   ========================================================================= */
.bhf-tl-body {
    display: none;
    padding: 0 1.5rem 1.5rem;
    animation: bhfSlideDown .35s ease;
}
.bhf-tl-step--active .bhf-tl-body {
    display: block;
}

@keyframes bhfSlideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* =========================================================================
   FIELDS
   ========================================================================= */
.bhf-fields {
    display: flex;
    flex-direction: column;
    gap: .75rem;
}
.bhf-field {
    position: relative;
}
.bhf-label {
    display: block;
    font-size: .82rem;
    font-weight: 600;
    color: var(--bhf-gray-700);
    margin-bottom: .35rem;
}
.bhf-req { color: #ef4444; font-weight: 700; }

/* Text / Email / Select inputs */
.bhf-input {
    width: 100%;
    padding: .7rem 1rem;
    font-size: .9rem;
    font-family: inherit;
    color: var(--bhf-gray-900);
    background: var(--bhf-white);
    border: 1.5px solid var(--bhf-gray-200);
    border-radius: 10px;
    transition: var(--bhf-transition);
    outline: none;
}
.bhf-input:focus {
    border-color: var(--bhf-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .1);
}
.bhf-input::placeholder { color: var(--bhf-gray-400); }

.bhf-textarea { min-height: 90px; resize: vertical; }

select.bhf-input {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

/* Two-column grid for text inputs (added via JS class .bhf-fields--grid) */
.bhf-fields--grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: .75rem;
}
.bhf-fields--grid .bhf-field--email {
    grid-column: 1 / -1;
}

/* =========================================================================
   CHECKBOX CARDS
   ========================================================================= */
.bhf-checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: .7rem;
    padding: .85rem 1rem;
    background: var(--bhf-white);
    border: 1.5px solid var(--bhf-gray-200);
    border-radius: 10px;
    cursor: pointer;
    transition: var(--bhf-transition);
    line-height: 1.5;
}
.bhf-checkbox-label:hover {
    border-color: var(--bhf-blue-200);
    background: var(--bhf-blue-50);
}
.bhf-checkbox-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0; height: 0;
}
.bhf-checkmark {
    flex-shrink: 0;
    width: 20px; height: 20px;
    border: 2px solid var(--bhf-gray-300);
    border-radius: 5px;
    background: var(--bhf-white);
    position: relative;
    transition: var(--bhf-transition);
    margin-top: 2px;
}
.bhf-checkmark::after {
    content: '';
    position: absolute;
    top: 2px; left: 5px;
    width: 6px; height: 10px;
    border: solid white;
    border-width: 0 2.5px 2.5px 0;
    transform: rotate(45deg) scale(0);
    transition: transform .2s ease;
}
.bhf-checkbox-label input:checked ~ .bhf-checkmark {
    background: var(--bhf-blue);
    border-color: var(--bhf-blue);
}
.bhf-checkbox-label input:checked ~ .bhf-checkmark::after {
    transform: rotate(45deg) scale(1);
}
.bhf-checkbox-text {
    font-size: .85rem;
    color: var(--bhf-gray-700);
    flex: 1;
}
.bhf-checkbox-label input:checked ~ .bhf-checkbox-text {
    color: var(--bhf-gray-900);
}

/* =========================================================================
   VALIDATION ERRORS
   ========================================================================= */
.bhf-field--error .bhf-input {
    border-color: #ef4444;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, .08);
}
.bhf-field--error .bhf-checkbox-label {
    border-color: #ef4444;
    background: #fef2f2;
}
.bhf-field--error .bhf-checkmark {
    border-color: #ef4444;
}
.bhf-error-msg {
    font-size: .78rem;
    color: #ef4444;
    margin-top: .3rem;
    display: none;
}
.bhf-field--error .bhf-error-msg {
    display: block;
}

/* =========================================================================
   STEP ACTIONS (inside each timeline step)
   ========================================================================= */
.bhf-tl-actions {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: .5rem;
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--bhf-gray-100);
}

/* =========================================================================
   BUTTONS
   ========================================================================= */
.bhf-btn {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .65rem 1.25rem;
    font-size: .85rem;
    font-weight: 600;
    font-family: inherit;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    transition: var(--bhf-transition);
}
.bhf-btn--back {
    color: var(--bhf-gray-500);
    background: var(--bhf-gray-100);
}
.bhf-btn--back:hover {
    background: var(--bhf-gray-200);
    color: var(--bhf-gray-700);
}
.bhf-btn--primary {
    color: var(--bhf-white);
    background: var(--bhf-blue);
    box-shadow: 0 2px 8px rgba(37, 99, 235, .2);
}
.bhf-btn--primary:hover {
    background: var(--bhf-blue-700);
    box-shadow: 0 4px 16px rgba(37, 99, 235, .3);
    transform: translateY(-1px);
}
.bhf-btn--primary:active {
    transform: translateY(0);
}
.bhf-btn:disabled {
    opacity: .5;
    cursor: not-allowed;
    transform: none;
}

/* =========================================================================
   SUMMARY (confirm step)
   ========================================================================= */
.bhf-summary {
    background: var(--bhf-gray-50);
    border: 1px solid var(--bhf-gray-200);
    border-radius: 10px;
    padding: 1.25rem;
    margin-bottom: 1rem;
}
.bhf-summary-step {
    margin-bottom: 1rem;
}
.bhf-summary-step:last-child { margin-bottom: 0; }
.bhf-summary-step h4 {
    font-size: .72rem;
    font-weight: 700;
    color: var(--bhf-blue);
    text-transform: uppercase;
    letter-spacing: .06em;
    margin-bottom: .4rem;
    padding-bottom: .3rem;
    border-bottom: 1px solid var(--bhf-gray-200);
}
.bhf-summary-item {
    display: flex;
    gap: .4rem;
    font-size: .82rem;
    color: var(--bhf-gray-700);
    line-height: 1.5;
    margin-bottom: .2rem;
}
.bhf-summary-check {
    flex-shrink: 0;
    color: var(--bhf-green);
    font-weight: 700;
}
.bhf-summary-label {
    font-weight: 600;
    color: var(--bhf-gray-900);
}

/* =========================================================================
   PRICE NOTE
   ========================================================================= */
.bhf-price-note {
    display: flex;
    align-items: flex-start;
    gap: .6rem;
    padding: .85rem 1rem;
    background: #fffbeb;
    border: 1px solid #fde68a;
    border-radius: 10px;
    font-size: .82rem;
    color: #92400e;
    line-height: 1.6;
    margin-bottom: 1rem;
}
.bhf-price-note svg {
    flex-shrink: 0;
    color: #d97706;
    margin-top: 2px;
}

/* =========================================================================
   SUCCESS STATE
   ========================================================================= */
.bhf-success {
    text-align: center;
    padding: 3rem 1.5rem;
    animation: bhfFadeIn .5s ease;
}
.bhf-success-icon { margin-bottom: 1.5rem; }
.bhf-success-icon svg {
    animation: bhfCheckPop .5s ease .2s both;
}
@keyframes bhfFadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes bhfCheckPop {
    0%   { transform: scale(0); }
    60%  { transform: scale(1.15); }
    100% { transform: scale(1); }
}
.bhf-success h3 {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--bhf-gray-900);
    margin-bottom: .5rem;
}
.bhf-success p {
    font-size: .95rem;
    color: var(--bhf-gray-500);
    line-height: 1.7;
}

/* =========================================================================
   LOADING SPINNER
   ========================================================================= */
.bhf-btn--loading {
    pointer-events: none;
    position: relative;
    color: transparent !important;
}
.bhf-btn--loading svg { visibility: hidden; }
.bhf-btn--loading::after {
    content: '';
    position: absolute;
    width: 16px; height: 16px;
    border: 2.5px solid rgba(255,255,255,.3);
    border-top-color: white;
    border-radius: 50%;
    animation: bhfSpin .6s linear infinite;
}
@keyframes bhfSpin { to { transform: rotate(360deg); } }

/* =========================================================================
   RESPONSIVE
   ========================================================================= */
@media (max-width: 768px) {
    .bhf-wizard { margin: 2rem 0; }
    .bhf-timeline { padding-left: 2.5rem; }
    .bhf-tl-marker {
        width: 28px; height: 28px;
        left: -2.5rem;
    }
    .bhf-tl-header { padding: .85rem 1.15rem; }
    .bhf-tl-body { padding: 0 1.15rem 1.15rem; }
    .bhf-tl-step--active .bhf-tl-title { font-size: 1rem; }
    .bhf-checkbox-label { padding: .75rem .85rem; }
    .bhf-checkbox-text { font-size: .82rem; }
    .bhf-btn { padding: .6rem 1rem; font-size: .82rem; }
    .bhf-summary { padding: .85rem; }

    /* Single column for inputs on mobile */
    .bhf-fields--grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .bhf-header-title { font-size: 1.2rem; }
    .bhf-timeline { padding-left: 2.2rem; }
    .bhf-tl-marker { width: 26px; height: 26px; left: -2.2rem; }
    .bhf-tl-marker-num { font-size: .7rem; }
}