/* ═══════════════════════════════════════
   STEP FORM QUIZ — Frontend Styles
   ═══════════════════════════════════════ */

:root {
    --sfq-primary: #2d5ae0;
    --sfq-primary-light: #e8eefb;
    --sfq-primary-dark: #1a3fa0;
    --sfq-accent: #f59e0b;
    --sfq-text: #1e293b;
    --sfq-text-light: #64748b;
    --sfq-bg: #ffffff;
    --sfq-border: #e2e8f0;
    --sfq-success: #10b981;
    --sfq-error: #ef4444;
    --sfq-radius: 12px;
    --sfq-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    --sfq-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* WRAPPER */
.sfq-wrapper {
    max-width: 640px;
    margin: 2rem auto;
    padding: 2rem;
    background: var(--sfq-bg);
    border-radius: var(--sfq-radius);
    box-shadow: var(--sfq-shadow);
    font-family: var(--sfq-font);
    color: var(--sfq-text);
    position: relative;
    overflow: hidden;
}

.sfq-wrapper *,
.sfq-wrapper *::before,
.sfq-wrapper *::after {
    box-sizing: border-box;
}

/* PROGRESS */
.sfq-progress {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 2rem;
}

.sfq-progress-bar {
    flex: 1;
    height: 6px;
    background: var(--sfq-border);
    border-radius: 3px;
    overflow: hidden;
}

.sfq-progress-fill {
    height: 100%;
    background: var(--sfq-primary);
    border-radius: 3px;
    transition: width 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.sfq-progress-text {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--sfq-text-light);
    white-space: nowrap;
    min-width: 40px;
    text-align: right;
}

/* STEP */
.sfq-step {
    display: none;
    animation: sfqFadeIn 0.4s ease;
}

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

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

/* QUESTION */
.sfq-question-text {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0 0 1.5rem;
    line-height: 1.4;
    color: var(--sfq-text);
}

/* OPTIONS — Radio / Checkbox */
.sfq-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sfq-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    border: 2px solid var(--sfq-border);
    border-radius: calc(var(--sfq-radius) - 2px);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.95rem;
    line-height: 1.4;
    background: var(--sfq-bg);
}

.sfq-option:hover {
    border-color: var(--sfq-primary);
    background: var(--sfq-primary-light);
}

.sfq-option input {
    accent-color: var(--sfq-primary);
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    margin: 0;
}

.sfq-option input:checked + .sfq-option-label {
    font-weight: 600;
}

.sfq-option:has(input:checked) {
    border-color: var(--sfq-primary);
    background: var(--sfq-primary-light);
    box-shadow: 0 0 0 1px var(--sfq-primary);
}

.sfq-option-label {
    flex: 1;
}

/* SELECT */
.sfq-select {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--sfq-border);
    border-radius: calc(var(--sfq-radius) - 2px);
    font-size: 0.95rem;
    font-family: var(--sfq-font);
    color: var(--sfq-text);
    background: var(--sfq-bg);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2364748b' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
}

.sfq-select:focus {
    outline: none;
    border-color: var(--sfq-primary);
    box-shadow: 0 0 0 3px rgba(45, 90, 224, 0.15);
}

/* NAVIGATION */
.sfq-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
    gap: 12px;
}

.sfq-btn {
    padding: 12px 28px;
    border: none;
    border-radius: calc(var(--sfq-radius) - 2px);
    font-size: 0.9rem;
    font-weight: 600;
    font-family: var(--sfq-font);
    cursor: pointer;
    transition: all 0.2s ease;
    line-height: 1;
}

.sfq-btn-prev {
    background: var(--sfq-primary-light);
    color: var(--sfq-primary);
}

.sfq-btn-prev:hover:not(:disabled) {
    background: #d4dff7;
}

.sfq-btn-prev:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.sfq-btn-next {
    background: var(--sfq-primary);
    color: #fff;
    margin-left: auto;
}

.sfq-btn-next:hover {
    background: var(--sfq-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(45, 90, 224, 0.3);
}

.sfq-btn-next.sfq-btn-submit {
    background: var(--sfq-success);
}

.sfq-btn-next.sfq-btn-submit:hover {
    background: #059669;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

/* RESULT SCREEN */
.sfq-result-screen {
    text-align: center;
    padding: 2rem 0;
}

.sfq-result-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: sfqPulse 2s ease infinite;
}

@keyframes sfqPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50%      { transform: scale(1.1); opacity: 0.8; }
}

.sfq-result-label {
    font-size: 1.6rem;
    font-weight: 800;
    margin: 0 0 0.5rem;
    color: var(--sfq-primary);
}

.sfq-result-score {
    font-size: 1rem;
    color: var(--sfq-text-light);
    margin: 0 0 1rem;
}

.sfq-result-message {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--sfq-text);
    max-width: 480px;
    margin: 0 auto 2rem;
    padding: 1rem;
    background: var(--sfq-primary-light);
    border-radius: var(--sfq-radius);
}

.sfq-btn-restart {
    background: var(--sfq-primary);
    color: #fff;
}

.sfq-btn-restart:hover {
    background: var(--sfq-primary-dark);
}

/* VALIDATION */
.sfq-step--error .sfq-options {
    animation: sfqShake 0.4s ease;
}

@keyframes sfqShake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-6px); }
    40%, 80% { transform: translateX(6px); }
}

.sfq-empty {
    text-align: center;
    color: var(--sfq-text-light);
    padding: 2rem;
    font-style: italic;
}

/* RESPONSIVE */
@media (max-width: 600px) {
    .sfq-wrapper {
        margin: 1rem;
        padding: 1.25rem;
    }

    .sfq-question-text {
        font-size: 1.1rem;
    }

    .sfq-option {
        padding: 12px 14px;
        font-size: 0.9rem;
    }

    .sfq-btn {
        padding: 10px 20px;
        font-size: 0.85rem;
    }
}