/**
 * AUQUERO Calculator Frontend Styles – Interactive & Modern
 * Primärfarbe: #F5A500 (Amber, matching auquero.de)
 */

:root {
    --primary: #F5A500;
    --primary-dark: #D99200;
    --primary-light: #fff8ec;
    --gray-50:  #f8f9fa;
    --gray-100: #e9ecef;
    --gray-200: #dee2e6;
    --gray-300: #ced4da;
    --gray-400: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    --white: #ffffff;
    --radius: 0;
}

/* ─── Wrapper ─────────────────────────────────────────── */
.auquero-calculator-wrapper {
    max-width: 820px;
    margin: 40px auto;
    padding: 0 20px;
}

.auquero-calculator {
    background: var(--white);
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

/* ─── Header ──────────────────────────────────────────── */
.calculator-header {
    background: var(--white);
    color: var(--gray-900);
    padding: 40px 32px 32px;
    text-align: center;
    border-bottom: 3px solid var(--primary);
}

.calculator-title {
    margin: 0 0 10px;
    font-size: 30px;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
}

.calculator-description {
    margin: 0;
    font-size: 16px;
    color: var(--gray-600);
    line-height: 1.5;
}

/* ─── Step Tabs ───────────────────────────────────────── */
.step-tabs {
    display: flex;
    background: var(--gray-900);
}

.step-tab {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 16px 12px;
    border: none;
    background: transparent;
    color: var(--gray-400);
    cursor: default;
    border-bottom: 3px solid transparent;
    transition: all 0.2s ease;
    font-family: inherit;
    pointer-events: none;
}

.step-tab.active {
    color: var(--white);
    border-bottom-color: var(--primary);
}

.step-tab.completed {
    color: var(--gray-300);
    cursor: pointer;
    pointer-events: auto;
}

.step-tab.completed:hover {
    color: var(--white);
    background: rgba(255,255,255,0.06);
}

.step-tab-num {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: rgba(255,255,255,0.12);
    font-size: 12px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
}

.step-tab.active .step-tab-num {
    background: var(--primary);
    color: var(--white);
}

.step-tab.completed .step-tab-num {
    background: var(--primary);
    color: var(--white);
}

.step-tab-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

/* ─── Form Steps ──────────────────────────────────────── */
.form-step {
    display: none;
    animation: fadeUp 0.3s ease;
}

.form-step.active {
    display: block;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ─── Step Header ─────────────────────────────────────── */
.step-header {
    padding: 28px 32px 0;
    margin-bottom: 0;
}

.step-header h3 {
    margin: 0 0 6px;
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-900);
}

.step-header p {
    margin: 0;
    font-size: 14px;
    color: var(--gray-600);
    line-height: 1.5;
}

/* ─── Calculator Form ─────────────────────────────────── */
.calculator-form {
    padding: 0 36px 8px;
}

.form-section {
    margin-top: 32px;
    padding-bottom: 32px;
}

.form-section + .form-section {
    border-top: 1px solid var(--gray-100);
    padding-top: 8px;
}

.form-section:last-of-type {
    border-bottom: none;
}

.form-row { margin-bottom: 20px; }

.form-row-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group { position: relative; }

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-800);
    line-height: 1.4;
}

.mb-24 { margin-bottom: 28px; }

.required { color: var(--primary); }

.help-tooltip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 17px;
    height: 17px;
    background: var(--gray-400);
    color: var(--white);
    border-radius: 50%;
    font-size: 11px;
    font-weight: 700;
    cursor: help;
    margin-left: 4px;
    vertical-align: middle;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="number"],
.form-group select {
    width: 100%;
    padding: 11px 14px;
    font-size: 15px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    transition: border-color 0.2s, background 0.2s;
    font-family: inherit;
    background: var(--white);
    color: var(--gray-900);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--primary-light);
}

.form-hint {
    display: block;
    margin-top: 5px;
    font-size: 12px;
    color: var(--gray-600);
    font-style: italic;
}

/* ─── Industry Preview Badge ──────────────────────────── */
.industry-preview {
    margin-top: 8px;
    padding: 10px 14px;
    background: var(--primary-light);
    border-left: 3px solid var(--primary);
    font-size: 13px;
    color: var(--gray-700);
    animation: fadeUp 0.25s ease;
}

.industry-preview strong {
    color: var(--primary-dark);
    font-size: 15px;
}

/* ─── EBITDA Live Display ─────────────────────────────── */
.ebitda-wrap {
    position: relative;
}

.ebitda-display {
    text-align: center;
    font-size: 34px;
    font-weight: 700;
    color: var(--primary);
    padding: 10px 0 6px;
    letter-spacing: -0.5px;
    min-height: 54px;
    transition: all 0.2s ease;
}

.ebitda-display.empty {
    color: var(--gray-300);
    font-size: 28px;
}

/* ─── Segment Controls ────────────────────────────────── */
/*
 * Alle Auswahlfelder als zusammenhängende Segmentleiste.
 * Kein Box-Feeling, minimalistisch wie die AUQUERO-Website.
 */
.option-cards {
    display: flex;
    border: 1.5px solid var(--gray-200);
    overflow: hidden;
    background: var(--white);
}

/* cols-3 and cols-5 = still flex, just different item counts */
.option-cards.cols-3,
.option-cards-5 { display: flex; }

.option-card {
    flex: 1;
    display: block;
    position: relative;
}

.option-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.option-card-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 13px 8px;
    border-right: 1.5px solid var(--gray-200);
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
    min-height: 58px;
    gap: 4px;
    user-select: none;
    background: var(--white);
}

.option-card:last-child .option-card-inner {
    border-right: none;
}

.option-card-inner:hover {
    background: var(--primary-light);
}

.option-card input[type="radio"]:checked + .option-card-inner {
    background: var(--primary);
}

.option-card input[type="radio"]:checked + .option-card-inner .option-card-icon,
.option-card input[type="radio"]:checked + .option-card-inner .option-card-label,
.option-card input[type="radio"]:checked + .option-card-inner .option-card-sub {
    color: var(--white) !important;
}

.option-card-icon {
    font-size: 17px;
    line-height: 1;
}

.option-card-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--gray-700);
    line-height: 1.3;
}

.option-card-sub {
    font-size: 11px;
    color: var(--gray-500);
    line-height: 1.2;
}

/* radio group error message */
.radio-error-msg {
    margin-top: 5px;
    font-size: 12px;
    color: #d63638;
}

.optional-hint {
    display: inline;
    color: var(--primary);
    font-weight: 600;
    font-size: 13px;
}

/* ─── Section Titles (Schritt 2 / 3) ─────────────────── */
.section-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0 0 18px;
    padding-left: 10px;
    border-left: 3px solid var(--primary);
}

.section-hint {
    font-size: 12px;
    font-weight: 400;
    color: var(--gray-600);
    margin-left: 4px;
}

/* ─── Privacy Checkbox ────────────────────────────────── */
.privacy-checkbox {
    background: var(--gray-50);
    padding: 16px;
    border: 1px solid var(--gray-200);
}

.privacy-checkbox label {
    display: flex;
    align-items: flex-start;
    cursor: pointer;
    font-size: 14px;
    line-height: 1.6;
    color: var(--gray-700);
}

.privacy-checkbox input[type="checkbox"] {
    margin-right: 12px;
    margin-top: 3px;
    cursor: pointer;
    flex-shrink: 0;
    width: 17px;
    height: 17px;
    accent-color: var(--primary);
}

/* ─── Buttons ─────────────────────────────────────────── */
.form-actions { text-align: center; margin-top: 32px; }

.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 13px 36px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.18s ease;
    font-family: inherit;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
}

.btn-primary:active { transform: translateY(1px); }

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background: var(--white);
    color: var(--gray-700);
    border-color: var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
    color: var(--gray-900);
}

.spinner {
    display: inline-block;
    width: 13px;
    height: 13px;
    border: 2px solid rgba(255,255,255,0.35);
    border-top-color: var(--white);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* ─── Form Navigation ─────────────────────────────────── */
.form-navigation {
    display: flex;
    gap: 12px;
    justify-content: space-between;
    margin-top: 28px;
    padding: 24px 0 32px;
    border-top: 1px solid var(--gray-100);
}

.form-navigation .btn-next,
.form-navigation button[type="submit"] {
    margin-left: auto;
}

/* ─── Messages ────────────────────────────────────────── */
.form-message {
    margin-top: 16px;
    padding: 14px 16px;
    text-align: center;
    font-weight: 500;
    border-left: 3px solid;
    font-size: 14px;
}

.form-message.success {
    background: var(--primary-light);
    color: var(--gray-900);
    border-color: var(--primary);
}

.form-message.error {
    background: #fff5f5;
    color: #c53030;
    border-color: #c53030;
}

/* ─── Result ──────────────────────────────────────────── */
.calculator-result {
    padding: 28px 32px 32px;
    background: var(--gray-50);
    border-top: 3px solid var(--primary);
    animation: fadeUp 0.4s ease;
}

.result-header {
    text-align: center;
    margin-bottom: 24px;
}

.result-header h3 {
    margin: 0 0 10px;
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
}

.result-disclaimer {
    margin: 0;
    padding: 10px 14px;
    background: #fff9ec;
    border-left: 3px solid var(--primary);
    font-size: 12px;
    color: var(--gray-700);
    text-align: left;
}

.result-main {
    background: var(--gray-900);
    color: var(--white);
    padding: 28px 24px;
    text-align: center;
    margin-bottom: 20px;
    border-top: 3px solid var(--primary);
}

.result-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
    color: var(--gray-400);
}

.result-value {
    font-size: 30px;
    font-weight: 700;
    color: var(--white);
    line-height: 1.2;
}

.result-details { margin-bottom: 20px; }

.result-details h4 {
    margin: 0 0 14px;
    font-size: 15px;
    font-weight: 600;
    color: var(--gray-900);
    text-align: center;
}

.equity-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.equity-card {
    background: var(--white);
    padding: 18px 12px;
    text-align: center;
    border: 1px solid var(--gray-200);
    transition: border-color 0.2s, transform 0.2s;
}

.equity-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.equity-percent {
    font-size: 26px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.equity-label {
    font-size: 11px;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.equity-amount {
    font-size: 17px;
    font-weight: 600;
    color: var(--gray-900);
}

.result-cta {
    background: var(--white);
    padding: 20px;
    text-align: center;
    border: 1px solid var(--gray-200);
}

.result-cta h4 {
    margin: 0 0 8px;
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-900);
}

.result-cta p {
    margin: 0 0 16px;
    font-size: 14px;
    color: var(--gray-600);
}

/* ─── Responsive ──────────────────────────────────────── */
@media (max-width: 640px) {
    .calculator-header { padding: 28px 20px 24px; }
    .calculator-title  { font-size: 22px; }
    .calculator-form   { padding: 0 20px 8px; }
    .step-header       { padding: 24px 20px 0; }
    .calculator-result { padding: 24px 20px 28px; }

    .step-tab-label { display: none; }
    .step-tab       { padding: 14px 8px; }

    .option-cards,
    .option-cards-5,
    .option-cards.cols-3 {
        flex-wrap: wrap;
    }

    .option-cards .option-card,
    .option-cards-5 .option-card {
        flex: 1 1 calc(50% - 1px);
        min-width: 0;
    }

    .option-cards.cols-3 .option-card {
        flex: 1 1 calc(33% - 1px);
    }

    .option-card:nth-child(2n) .option-card-inner {
        border-right: none;
    }

    .option-card-inner {
        border-bottom: 1.5px solid var(--gray-200);
    }

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

    .equity-grid {
        grid-template-columns: 1fr;
    }

    .form-navigation {
        flex-direction: column-reverse;
        gap: 10px;
    }

    .form-navigation .btn-primary,
    .form-navigation .btn-secondary {
        width: 100%;
        text-align: center;
        margin-left: 0;
    }

    .ebitda-display { font-size: 26px; }
}

/* ─── EBIT-Tabs ───────────────────────────────────────── */
.ebit-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 16px;
    border: 1px solid var(--gray-200);
}

.ebit-tab {
    flex: 1;
    padding: 9px 14px;
    background: var(--gray-50);
    border: none;
    cursor: pointer;
    font-size: 13px;
    color: var(--gray-700);
    transition: background 0.2s, color 0.2s;
}

.ebit-tab:first-child { border-right: 1px solid var(--gray-200); }

.ebit-tab.active {
    background: var(--primary);
    color: var(--white);
    font-weight: 600;
}

.ebit-sublabel {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.ebitda-computed {
    margin-top: 10px;
    padding: 10px 14px;
    background: var(--primary-light);
    border-left: 3px solid var(--primary);
    font-size: 14px;
    color: var(--gray-900);
}

/* ─── Ergebnis-Blöcke ─────────────────────────────────── */
.result-block {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    padding: 20px 24px;
    margin-bottom: 16px;
    text-align: center;
}

.result-block-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--gray-600);
    margin-bottom: 4px;
}

.result-block-sub {
    font-size: 12px;
    color: var(--gray-400);
    margin-bottom: 10px;
}

.result-multiple-hint {
    font-size: 12px;
    color: var(--gray-600);
    margin-top: 8px;
}

/* ─── Qualitätsfaktor-Bar ─────────────────────────────── */
.result-quality-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-top: none;
    font-size: 13px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.quality-bar-label {
    font-weight: 600;
    color: var(--gray-700);
    min-width: 160px;
}

.quality-bar-value {
    font-size: 16px;
    font-weight: 700;
}

.quality-bar-value .quality-up   { color: #198754; }
.quality-bar-value .quality-down { color: #dc3545; }

.quality-bar-hint {
    font-size: 12px;
    color: var(--gray-600);
}

/* ─── EV→Equity Bridge ────────────────────────────────── */
.result-bridge {
    background: var(--white);
    border: 1px solid var(--gray-200);
    margin-bottom: 16px;
    font-size: 13px;
}

.bridge-title {
    background: var(--gray-800);
    color: var(--white);
    padding: 8px 16px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

.bridge-row {
    display: flex;
    justify-content: space-between;
    padding: 9px 16px;
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-700);
}

.bridge-row-neg { color: #dc3545; }
.bridge-row-pos { color: #198754; }

.bridge-total {
    font-weight: 700;
    background: var(--primary-light);
    color: var(--gray-900);
    border-bottom: none;
    border-top: 2px solid var(--primary);
}