/* ==========================================================================
   Simple Survey — Premium Frontend Layout
   ========================================================================== */

/* ---------- Reset & Container ---------- */
.ssvy-survey {
    --ssvy-primary: #4361ee;
    --ssvy-primary-light: #eef2ff;
    --ssvy-primary-dark: #3a4fd7;
    --ssvy-accent: #06d6a0;
    --ssvy-text: #1e293b;
    --ssvy-text-secondary: #64748b;
    --ssvy-bg: #f8fafc;
    --ssvy-card-bg: #ffffff;
    --ssvy-border: #e2e8f0;
    --ssvy-border-hover: #cbd5e1;
    --ssvy-error: #ef4444;
    --ssvy-radius: 12px;
    --ssvy-shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
    --ssvy-shadow-lg: 0 10px 25px rgba(0,0,0,.07), 0 4px 10px rgba(0,0,0,.04);

    max-width: 740px;
    margin: 40px auto;
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
    font-size: 15px;
    line-height: 1.6;
    color: var(--ssvy-text);
    -webkit-font-smoothing: antialiased;
}

.ssvy-survey *,
.ssvy-survey *::before,
.ssvy-survey *::after {
    box-sizing: border-box;
}

/* ---------- Header ---------- */
.ssvy-header {
    background: var(--ssvy-card-bg);
    border-radius: var(--ssvy-radius);
    box-shadow: var(--ssvy-shadow);
    padding: 0 32px 28px;
    margin-bottom: 24px;
    overflow: hidden;
    position: relative;
}

.ssvy-header-accent {
    height: 5px;
    background: linear-gradient(90deg, var(--ssvy-primary), var(--ssvy-accent));
    margin: 0 -32px 28px;
}

.ssvy-title {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--ssvy-text);
    margin: 0 0 8px;
    line-height: 1.3;
}

.ssvy-description {
    color: var(--ssvy-text-secondary);
    font-size: 15px;
    line-height: 1.7;
    margin: 0;
}

.ssvy-description p:first-child { margin-top: 0; }
.ssvy-description p:last-child  { margin-bottom: 0; }

.ssvy-meta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
    padding: 4px 12px;
    background: var(--ssvy-bg);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    color: var(--ssvy-text-secondary);
}

.ssvy-meta-sep {
    display: inline-block;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--ssvy-text-secondary);
    opacity: 0.5;
}

.ssvy-meta-required {
    display: inline-flex;
    align-items: center;
    gap: 3px;
}

.ssvy-asterisk {
    color: var(--ssvy-error);
    font-weight: 700;
    font-size: 1.1em;
    line-height: 1;
}

/* ---------- Progress ---------- */
.ssvy-progress-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    padding: 0 4px;
}

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

.ssvy-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--ssvy-primary), var(--ssvy-accent));
    border-radius: 3px;
    transition: width 0.4s ease;
}

.ssvy-progress-text {
    font-size: 13px;
    font-weight: 600;
    color: var(--ssvy-text-secondary);
    white-space: nowrap;
    min-width: 40px;
    text-align: right;
}

/* ---------- Question Card ---------- */
.ssvy-card {
    background: var(--ssvy-card-bg);
    border-radius: var(--ssvy-radius);
    box-shadow: var(--ssvy-shadow);
    margin-bottom: 16px;
    transition: box-shadow 0.25s ease, border-color 0.25s ease;
    border: 2px solid transparent;
    overflow: hidden;
}

.ssvy-card:hover {
    box-shadow: var(--ssvy-shadow-lg);
}

.ssvy-card.ssvy-answered {
    border-color: var(--ssvy-accent);
}

.ssvy-card.ssvy-invalid {
    border-color: var(--ssvy-error);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

/* Card Header */
.ssvy-card-header {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 24px 28px 0;
}

.ssvy-card-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    min-width: 32px;
    border-radius: 50%;
    background: var(--ssvy-primary-light);
    color: var(--ssvy-primary);
    font-size: 14px;
    font-weight: 700;
    line-height: 1;
}

.ssvy-card-title-wrap {
    flex: 1;
}

.ssvy-card-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--ssvy-text);
    margin: 4px 0 0;
    line-height: 1.45;
}

.ssvy-card-desc {
    color: var(--ssvy-text-secondary);
    font-size: 14px;
    margin: 6px 0 0;
    line-height: 1.5;
}

.ssvy-badge-required {
    display: inline-block;
    padding: 3px 10px;
    background: #fef2f2;
    color: var(--ssvy-error);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 20px;
    white-space: nowrap;
    margin-top: 6px;
}

/* Card Divider */
.ssvy-card-divider {
    border: none;
    border-top: 1px solid var(--ssvy-border);
    margin: 18px 28px 0;
}

/* Card Body */
.ssvy-card-body {
    padding: 20px 28px 24px;
}

/* ---------- Options (Radio & Checkbox) ---------- */
.ssvy-options-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.ssvy-option-row {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 18px;
    border: 1px solid var(--ssvy-border);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.18s ease;
    user-select: none;
    min-height: 50px;
}

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

.ssvy-option-row.ssvy-selected {
    background: var(--ssvy-primary-light);
    border-color: var(--ssvy-primary);
    box-shadow: 0 0 0 1px var(--ssvy-primary);
}

.ssvy-option-label {
    font-size: 15px;
    color: var(--ssvy-text);
    line-height: 1.45;
    flex: 1;
}

/* Custom Radio */
.ssvy-radio-outer {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    min-width: 22px;
}

.ssvy-radio-outer input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    margin: 0;
}

.ssvy-radio-inner {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 2px solid var(--ssvy-border-hover);
    transition: all 0.2s ease;
    position: relative;
}

.ssvy-radio-outer input[type="radio"]:checked ~ .ssvy-radio-inner {
    border-color: var(--ssvy-primary);
}

.ssvy-radio-outer input[type="radio"]:checked ~ .ssvy-radio-inner::after {
    content: '';
    position: absolute;
    top: 4px;
    left: 4px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--ssvy-primary);
    animation: ssvy-pop 0.2s ease;
}

/* Custom Checkbox */
.ssvy-check-outer {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    min-width: 22px;
}

.ssvy-check-outer input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    margin: 0;
}

.ssvy-check-inner {
    width: 22px;
    height: 22px;
    border-radius: 6px;
    border: 2px solid var(--ssvy-border-hover);
    transition: all 0.2s ease;
    position: relative;
}

.ssvy-check-outer input[type="checkbox"]:checked ~ .ssvy-check-inner {
    background: var(--ssvy-primary);
    border-color: var(--ssvy-primary);
}

.ssvy-check-outer input[type="checkbox"]:checked ~ .ssvy-check-inner::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 6px;
    width: 6px;
    height: 10px;
    border: solid #fff;
    border-width: 0 2.5px 2.5px 0;
    transform: rotate(45deg);
    animation: ssvy-pop 0.2s ease;
}

.ssvy-hint {
    font-size: 13px;
    color: var(--ssvy-text-secondary);
    margin: 10px 0 0;
    font-style: italic;
}

/* ---------- Text Inputs ---------- */
.ssvy-input {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--ssvy-border);
    border-radius: 10px;
    font-size: 15px;
    font-family: inherit;
    color: var(--ssvy-text);
    background: var(--ssvy-bg);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    resize: vertical;
}

.ssvy-input::placeholder {
    color: #94a3b8;
}

.ssvy-input:focus {
    outline: none;
    border-color: var(--ssvy-primary);
    background: var(--ssvy-card-bg);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.12);
}

.ssvy-input-textarea {
    min-height: 110px;
}

/* ---------- Footer ---------- */
.ssvy-footer {
    background: var(--ssvy-card-bg);
    border-radius: var(--ssvy-radius);
    box-shadow: var(--ssvy-shadow);
    padding: 24px 28px;
    margin-top: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.ssvy-privacy {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--ssvy-text-secondary);
    text-align: center;
    line-height: 1.5;
}

.ssvy-privacy-icon {
    min-width: 14px;
    color: var(--ssvy-accent);
}

.ssvy-submit {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 40px;
    background: linear-gradient(135deg, var(--ssvy-primary), var(--ssvy-primary-dark));
    color: #fff;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.25s ease;
    box-shadow: 0 4px 14px rgba(67, 97, 238, 0.35);
}

.ssvy-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(67, 97, 238, 0.45);
}

.ssvy-submit:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(67, 97, 238, 0.3);
}

.ssvy-submit:disabled {
    background: #94a3b8;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.ssvy-submit-icon {
    transition: transform 0.2s ease;
}

.ssvy-submit:hover .ssvy-submit-icon {
    transform: translateX(3px);
}

/* ---------- Success Screen ---------- */
.ssvy-success {
    text-align: center;
    padding: 60px 32px;
    background: var(--ssvy-card-bg);
    border-radius: var(--ssvy-radius);
    box-shadow: var(--ssvy-shadow-lg);
}

.ssvy-success-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, #d1fae5, #a7f3d0);
    color: #059669;
    margin-bottom: 20px;
    animation: ssvy-pop 0.4s ease;
}

.ssvy-success-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--ssvy-text);
    margin: 0 0 8px;
}

.ssvy-success-text {
    font-size: 16px;
    color: var(--ssvy-text-secondary);
    margin: 0;
}

/* ---------- Loading ---------- */
.ssvy-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    text-align: center;
    padding: 24px;
    color: var(--ssvy-text-secondary);
    font-size: 15px;
}

.ssvy-spinner {
    display: inline-block;
    width: 22px;
    height: 22px;
    border: 3px solid var(--ssvy-border);
    border-top-color: var(--ssvy-primary);
    border-radius: 50%;
    animation: ssvy-spin 0.6s linear infinite;
}

/* ---------- Error ---------- */
.ssvy-error {
    color: var(--ssvy-error);
    background: #fef2f2;
    border: 1px solid #fecaca;
    padding: 14px 20px;
    border-radius: 10px;
    font-size: 14px;
    line-height: 1.5;
}

.ssvy-inline-error {
    text-align: center;
    margin: 16px 0 0;
}

/* ---------- Animations ---------- */
@keyframes ssvy-spin {
    to { transform: rotate(360deg); }
}

@keyframes ssvy-pop {
    0%   { transform: scale(0.5); opacity: 0; }
    70%  { transform: scale(1.1); }
    100% { transform: scale(1);   opacity: 1; }
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
    .ssvy-survey {
        margin: 20px 12px;
    }

    .ssvy-header {
        padding: 0 20px 22px;
    }

    .ssvy-header-accent {
        margin: 0 -20px 22px;
    }

    .ssvy-title {
        font-size: 22px;
    }

    .ssvy-card-header {
        padding: 20px 20px 0;
        gap: 12px;
    }

    .ssvy-card-number {
        width: 28px;
        height: 28px;
        min-width: 28px;
        font-size: 13px;
    }

    .ssvy-card-title {
        font-size: 16px;
    }

    .ssvy-card-divider {
        margin: 14px 20px 0;
    }

    .ssvy-card-body {
        padding: 16px 20px 20px;
    }

    .ssvy-option-row {
        padding: 12px 14px;
        gap: 12px;
    }

    .ssvy-footer {
        padding: 20px;
    }

    .ssvy-submit {
        width: 100%;
        justify-content: center;
        padding: 16px 24px;
    }

    .ssvy-success {
        padding: 40px 24px;
    }
}