/* ==========================================================================
   Swiper Questionnaires — Frontend Styles
   Mobile-first, Tinder-like card interface
   ========================================================================== */

/* ── CSS Custom Properties ── */
:root {
    --swq-primary: #6366f1;
    --swq-primary-dark: #4f46e5;
    --swq-primary-light: #818cf8;
    --swq-agree: #22c55e;
    --swq-disagree: #ef4444;
    --swq-neutral: #a3a3a3;
    --swq-overlay-color: #000;
    --swq-overlay-opacity: 0.5;
    --swq-card-radius: 16px;
    --swq-question-text-color: #ffffff;
    --swq-bg: #0f0f14;
    --swq-surface: #1a1a24;
    --swq-text: #ffffff;
    --swq-text-muted: rgba(255, 255, 255, 0.65);
    --swq-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --swq-safe-bottom: env(safe-area-inset-bottom, 0px);
    --swq-safe-top: env(safe-area-inset-top, 0px);
}

/* ── Container ── */
.swq-container {
    position: relative;
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
    font-family: var(--swq-font);
    color: var(--swq-text);
    background: var(--swq-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow: hidden;
    line-height: 1.5;
    box-sizing: border-box;
    touch-action: pan-y;
    -webkit-tap-highlight-color: transparent;
}

/* Mobile: fullscreen fixed overlay that covers the entire viewport */
@media (max-width: 599px) {
    .swq-container.swq-active {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 99999;
        max-width: none;
        width: 100%;
        height: 100%;
        margin: 0;
        overscroll-behavior: none;
        display: flex;
        flex-direction: column;
    }
}

.swq-container *,
.swq-container *::before,
.swq-container *::after {
    box-sizing: border-box;
}

.swq-container img {
    pointer-events: none;
    -webkit-user-drag: none;
    user-select: none;
    -webkit-user-select: none;
}

.swq-container a {
    color: var(--swq-primary-light);
}

/* ── Screens ── */
.swq-container .swq-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100dvh;
    min-height: 100vh;
    padding: 24px 20px;
    padding-top: calc(24px + var(--swq-safe-top));
    padding-bottom: calc(24px + var(--swq-safe-bottom));
    animation: swqFadeIn 0.3s ease-out;
}

@media (max-width: 599px) {
    .swq-container.swq-active .swq-screen {
        flex: 1;
        min-height: 0;
        height: auto;
    }
}

/* Question screen: card fills space, buttons pinned to bottom */
.swq-container .swq-screen--question {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    padding: 0;
    gap: 0;
    overflow: hidden;
}

.swq-container .swq-screen--question > .swq-card-area {
    order: 1;
}

.swq-container .swq-screen--question > .swq-bottom-area {
    order: 2;
}

.swq-container .swq-screen--question > .swq-progress {
    order: 0;
}

.swq-screen__inner {
    width: 100%;
    max-width: 400px;
    text-align: center;
}

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

/* ── Intro Screen ── */
.swq-intro__title {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0 0 16px;
    letter-spacing: -0.02em;
    color: #fff;
}

.swq-intro__text {
    font-size: 1rem;
    color: var(--swq-text-muted);
    margin-bottom: 32px;
    line-height: 1.6;
}

/* ── Respondent Form ── */
.swq-screen--respondent {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-y: contain;
}

.swq-screen--respondent .swq-screen__inner {
    text-align: left;
}

.swq-respondent__title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 8px;
    text-align: center;
    color: #fff;
}

.swq-respondent__note {
    color: var(--swq-text-muted);
    text-align: center;
    margin: 0 0 24px;
    font-size: 0.9rem;
}

.swq-field-group {
    margin-bottom: 16px;
}

.swq-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--swq-text-muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.swq-input {
    display: block;
    width: 100%;
    padding: 14px 16px;
    font-size: 16px !important;
    font-family: var(--swq-font);
    background: var(--swq-surface);
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    outline: none;
    transition: border-color 0.2s;
    -webkit-appearance: none;
    appearance: none;
}

.swq-input:focus {
    border-color: var(--swq-primary);
}

.swq-consent-group {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.swq-consent-label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--swq-text-muted);
    cursor: pointer;
}

.swq-consent-checkbox {
    margin-top: 3px;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    accent-color: var(--swq-primary);
}

/* ── Buttons ── */
.swq-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border: none;
    border-radius: 14px;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--swq-font);
    color: #fff;
    cursor: pointer;
    transition: transform 0.15s, background-color 0.2s, opacity 0.2s;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    user-select: none;
    -webkit-user-select: none;
}

.swq-btn:active {
    transform: scale(0.96);
}

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

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

.swq-btn--secondary {
    background: var(--swq-surface);
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.15);
}

.swq-btn--ghost {
    background: transparent;
    color: rgba(255, 255, 255, 0.5);
    padding: 10px 20px;
    font-weight: 500;
}

.swq-btn--large {
    width: 100%;
    padding: 16px;
    font-size: 1.05rem;
    border-radius: 16px;
    margin-top: 24px;
}

.swq-btn-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: center;
    margin-top: 8px;
}

/* ── Progress Bar ── */
.swq-progress {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 10;
    padding: calc(12px + var(--swq-safe-top)) 16px 8px;
}

.swq-progress__bar {
    height: 3px;
    background: var(--swq-primary);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.swq-progress__text {
    display: block;
    text-align: center;
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.4);
    margin-top: 4px;
    font-weight: 500;
    font-variant-numeric: tabular-nums;
}

/* ── Card Area — fills the viewport above the buttons ── */
.swq-container .swq-card-area {
    width: 100%;
    flex: 1 1 auto;
    display: flex;
    align-items: stretch;
    justify-content: center;
    padding: 12px 12px 0;
    min-height: 0;
}

.swq-card {
    position: relative;
    width: 100%;
    flex: 1;
    border-radius: var(--swq-card-radius);
    overflow: hidden;
    background: var(--swq-surface);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    will-change: transform;
    cursor: grab;
}

.swq-card--input {
    cursor: default;
}

.swq-card:active {
    cursor: grabbing;
}

.swq-card__bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    -webkit-touch-callout: none;
}

.swq-card__overlay {
    position: absolute;
    inset: 0;
    background: var(--swq-overlay-color);
    opacity: var(--swq-overlay-opacity);
}

.swq-card__content {
    position: relative;
    z-index: 2;
    padding: 40px 24px 28px;
    background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.3) 50%, transparent 100%);
}

.swq-card__question {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 8px;
    line-height: 1.3;
    letter-spacing: -0.01em;
    color: var(--swq-question-text-color);
    text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}

.swq-card__description {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
    line-height: 1.5;
    text-shadow: 0 1px 4px rgba(0,0,0,0.4);
}

/* ── Swipe Labels (shown during drag) ── */
.swq-card__label {
    position: absolute;
    top: 50px;
    z-index: 3;
    padding: 10px 24px;
    border-radius: 10px;
    font-size: 1.3rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    opacity: 0;
    transition: opacity 0.05s;
    pointer-events: none;
    border: 3px solid;
}

.swq-card__label--agree {
    right: 24px;
    color: var(--swq-agree);
    border-color: var(--swq-agree);
    transform: rotate(12deg);
}

.swq-card__label--disagree {
    left: 24px;
    color: var(--swq-disagree);
    border-color: var(--swq-disagree);
    transform: rotate(-12deg);
}

/* ── Bottom Area — buttons pinned below card ── */
.swq-container .swq-bottom-area {
    flex: 0 0 auto;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px 20px;
    padding-bottom: calc(20px + var(--swq-safe-bottom));
    gap: 6px;
}

/* ── Fallback Buttons ── */
.swq-fallback-buttons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 24px;
    padding: 4px 0;
}

.swq-fb-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    border: 2.5px solid;
    background: transparent;
    cursor: pointer;
    transition: transform 0.15s, background-color 0.2s, box-shadow 0.2s;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.swq-fb-btn:active {
    transform: scale(0.88);
}

.swq-fb-btn--disagree {
    color: var(--swq-disagree);
    border-color: var(--swq-disagree);
}

.swq-fb-btn--disagree:active {
    background: rgba(239, 68, 68, 0.15);
    box-shadow: 0 0 24px rgba(239, 68, 68, 0.3);
}

.swq-fb-btn--agree {
    color: var(--swq-agree);
    border-color: var(--swq-agree);
}

.swq-fb-btn--agree:active {
    background: rgba(34, 197, 94, 0.15);
    box-shadow: 0 0 24px rgba(34, 197, 94, 0.3);
}

.swq-fb-btn--neutral {
    color: var(--swq-neutral);
    border-color: var(--swq-neutral);
    width: 50px;
    height: 50px;
}

.swq-fb-btn--neutral:active {
    background: rgba(163, 163, 163, 0.15);
}

/* ── Input Question Controls ── */
.swq-controls {
    position: relative;
    z-index: 2;
    padding: 20px 24px 24px;
}

.swq-controls--slider {
    padding-top: 8px;
}

.swq-slider-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
}

.swq-slider-label {
    font-size: 0.8rem;
    color: var(--swq-text-muted);
    white-space: nowrap;
    flex-shrink: 0;
}

.swq-slider-input {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 3px;
    outline: none;
}

.swq-slider-input::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--swq-primary);
    cursor: pointer;
    border: 3px solid #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.swq-slider-input::-moz-range-thumb {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--swq-primary);
    cursor: pointer;
    border: 3px solid #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.swq-slider-value {
    display: block;
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--swq-primary-light);
    margin-top: 12px;
    font-variant-numeric: tabular-nums;
}

/* Choice buttons */
.swq-controls--choice {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.swq-choice-btn {
    width: 100%;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.06);
    border: 1.5px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    color: #fff;
    font-size: 1rem;
    font-family: var(--swq-font);
    text-align: left;
    cursor: pointer;
    transition: background-color 0.15s, border-color 0.15s, transform 0.1s;
    -webkit-tap-highlight-color: transparent;
}

.swq-choice-btn:active {
    transform: scale(0.98);
}

.swq-choice-btn.active {
    background: rgba(99, 102, 241, 0.2);
    border-color: var(--swq-primary);
    color: #fff;
}

/* Text inputs inside cards */
.swq-controls--text {
    padding-top: 8px;
}

.swq-text-input,
.swq-textarea-input {
    display: block;
    width: 100%;
    padding: 14px 16px;
    font-size: 16px !important;
    font-family: var(--swq-font);
    background: rgba(255, 255, 255, 0.06);
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    outline: none;
    transition: border-color 0.2s;
    -webkit-appearance: none;
    appearance: none;
    resize: vertical;
}

.swq-text-input:focus,
.swq-textarea-input:focus {
    border-color: var(--swq-primary);
}

/* ── Navigation Buttons ── */
.swq-nav-buttons {
    display: flex;
    justify-content: center;
    gap: 12px;
    padding: 4px 0;
    flex-wrap: wrap;
}

.swq-skip-btn,
.swq-back-btn {
    display: block;
}

/* ── Loading / Spinner ── */
.swq-screen--loading {
    align-items: center;
    justify-content: center;
}

.swq-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid rgba(255, 255, 255, 0.15);
    border-top-color: var(--swq-primary);
    border-radius: 50%;
    animation: swqSpin 0.7s linear infinite;
}

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

.swq-loading-text {
    margin-top: 16px;
    color: var(--swq-text-muted);
    font-size: 0.95rem;
}

/* ── Outro Screen ── */
.swq-outro__checkmark {
    margin-bottom: 24px;
    animation: swqCheckIn 0.5s ease-out;
}

@keyframes swqCheckIn {
    from { opacity: 0; transform: scale(0.5); }
    to   { opacity: 1; transform: scale(1); }
}

.swq-outro__text {
    font-size: 1.3rem;
    font-weight: 600;
    line-height: 1.5;
    color: #fff;
}

/* ── Error ── */
.swq-error {
    color: var(--swq-disagree);
    text-align: center;
    padding: 20px;
}

.swq-error-text {
    color: var(--swq-disagree);
    font-size: 1rem;
    margin-bottom: 20px;
}

/* ── Card Shake Animation ── */
@keyframes swqShake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-8px); }
    40% { transform: translateX(8px); }
    60% { transform: translateX(-6px); }
    80% { transform: translateX(6px); }
}

.swq-card--shake {
    animation: swqShake 0.4s ease-in-out;
}

/* ── Desktop Enhancements ── */
@media (min-width: 600px) {
    .swq-container.swq-active {
        position: relative;
        top: auto;
        left: auto;
        right: auto;
        bottom: auto;
        z-index: auto;
        max-width: 480px;
        width: 100%;
        height: auto;
        min-height: auto;
        display: block;
        border-radius: 24px;
        box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4);
        margin: 40px auto;
        overscroll-behavior: auto;
    }

    .swq-container .swq-screen {
        min-height: 700px;
        height: auto;
        flex: none;
    }

    .swq-card-area {
        padding: 16px 16px 0;
    }

    .swq-card__question {
        font-size: 1.7rem;
    }
}