*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #0a0a0a;
    --bg-card: #1a1a1e;
    --bg-card-hover: #222228;
    --accent: #ff2d55;
    --accent-glow: rgba(255, 45, 85, 0.35);
    --select: #00f0ff;
    --select-glow: rgba(0, 240, 255, 0.3);
    --text: #ffffff;
    --text-dim: #8a8a8e;
    --radius: 14px;
    --transition: 0.25s ease;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

#app {
    max-width: 660px;
    margin: 0 auto;
    padding: 0 20px calc(100px + env(safe-area-inset-bottom, 0px));
}

/* ─── Progress Bar ─── */

.progress-bar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg);
    padding: 16px 0 12px;
}

.progress-segments {
    display: flex;
    gap: 8px;
}

.segment {
    flex: 1;
    height: 5px;
    border-radius: 3px;
    background: #2a2a2e;
    transition: background var(--transition);
}

.segment.active {
    background: var(--accent);
}

/* ─── Steps ─── */

.step {
    animation: fadeIn 0.35s ease;
}

.step.hidden {
    display: none;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.step-title {
    font-size: clamp(1.15rem, 4.5vw, 1.65rem);
    font-weight: 800;
    text-align: center;
    margin: clamp(16px, 4vw, 28px) 0 6px;
    letter-spacing: -0.02em;
    text-transform: uppercase;
}

.step-subtitle {
    text-align: center;
    color: var(--text-dim);
    font-size: clamp(0.85rem, 2.5vw, 0.95rem);
    margin-bottom: clamp(16px, 4vw, 28px);
}

.section-title {
    font-size: 1.1rem;
    font-weight: 700;
    text-align: center;
    margin: 30px 0 16px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* ─── Cards ─── */

.cards-row {
    display: grid;
    gap: clamp(8px, 2vw, 14px);
    justify-items: center;
}

.cards-2 {
    grid-template-columns: repeat(2, 1fr);
}

.cards-3 {
    grid-template-columns: repeat(3, 1fr);
}

.card {
    position: relative;
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 2px solid var(--accent);
    cursor: pointer;
    transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
    overflow: hidden;
    width: 100%;
}

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

.card.selected {
    border-color: var(--select);
    box-shadow: 0 0 18px var(--select-glow);
}

.card.selected::after {
    content: '✓';
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    background: var(--select);
    color: #000;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    z-index: 2;
}

.card-media {
    width: 100%;
    aspect-ratio: 3 / 4;
    overflow: hidden;
    background: #111;
}

.card-media video,
.card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.card-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    text-align: center;
    padding: 20px 4px 6px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    font-weight: 600;
    font-size: clamp(0.7rem, 2.2vw, 0.85rem);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    z-index: 1;
}

/* ─── Step 3-5 Card Size (responsive) ─── */

#step-3 .card,
#step-4 .card,
#step-5 .card {
    max-width: 126px;
    width: min(126px, calc((100vw - 40px - 24px) / 3));
    aspect-ratio: 3 / 4;
    height: auto;
}

#step-3 .card-media,
#step-4 .card-media,
#step-5 .card-media {
    height: 100%;
    aspect-ratio: unset;
}

#step-3 .cards-row,
#step-4 .cards-row,
#step-5 .cards-row {
    grid-template-columns: repeat(3, auto);
    justify-content: center;
    justify-items: center;
    gap: clamp(8px, 2vw, 12px);
}

/* ─── Ethnicity Grid ─── */

.ethnicity-grid {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.ethnicity-card {
    position: relative;
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 2px solid var(--accent);
    cursor: pointer;
    transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
    overflow: hidden;
}

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

.ethnicity-card.selected {
    border-color: var(--select);
    box-shadow: 0 0 18px var(--select-glow);
}

.ethnicity-card.selected::after {
    content: '✓';
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    background: var(--select);
    color: #000;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    z-index: 2;
}

.ethnicity-card {
    max-width: 402px;
    margin: 0 auto;
    width: 100%;
}

.ethnicity-images {
    position: relative;
    width: 100%;
    height: clamp(120px, 28vw, 170px);
    overflow: hidden;
}

.ethnicity-images img {
    position: absolute;
    top: 0;
    height: 100%;
    width: auto;
    object-fit: contain;
    display: block;
}

.ethnicity-images .eth-center {
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.ethnicity-images .eth-left {
    left: 8%;
    z-index: 0;
}

.ethnicity-images .eth-right {
    right: 8%;
    z-index: 0;
}

.ethnicity-card .card-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px 6px 10px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    text-align: center;
}

/* ─── Age Slider ─── */

.age-section {
    margin-top: clamp(20px, 5vw, 36px);
}

.age-display {
    text-align: center;
    font-size: 1.15rem;
    font-weight: 700;
    padding: 10px 36px;
    border: 2px solid var(--accent);
    border-radius: 30px;
    display: inline-block;
    margin: 0 auto 20px;
    width: auto;
    display: flex;
    justify-content: center;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.slider-wrapper {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 0 4px;
}

.slider-label {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-dim);
    white-space: nowrap;
}

.custom-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: #2a2a2e;
    outline: none;
    font-size: 16px;
    /* prevent iOS zoom */
}

.custom-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    box-shadow: 0 0 10px var(--accent-glow);
    transition: box-shadow var(--transition);
    margin-top: -15px;
}

.custom-slider::-moz-range-thumb {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--accent);
    border: none;
    cursor: pointer;
    box-shadow: 0 0 10px var(--accent-glow);
}

.custom-slider::-webkit-slider-runnable-track {
    height: 6px;
    border-radius: 3px;
}

/* ─── Voice / Relationship Icon Cards ─── */

.icon-card-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
}

#step-5 .card {
    display: flex;
    flex-direction: column;
}

.card-svg-icon {
    width: clamp(36px, 8vw, 44px);
    height: clamp(36px, 8vw, 44px);
    object-fit: contain;
    margin-bottom: 8px;
}

#relationship-grid .card-svg-icon {
    width: clamp(48px, 12vw, 72px);
    height: clamp(48px, 12vw, 72px);
}

/* ─── Summary ─── */

.summary-image {
    max-width: min(380px, 100%);
    margin: 24px auto 0;
    border-radius: var(--radius);
    overflow: hidden;
    background: #111;
    aspect-ratio: 96 / 169;
    position: relative;
}

.summary-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.summary-loading {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.skeleton-pulse {
    width: 100%;
    height: 100%;
    position: absolute;
    inset: 0;
    background: linear-gradient(110deg, #1a1a1e 30%, #2a2a2e 50%, #1a1a1e 70%);
    background-size: 200% 100%;
    animation: shimmer 1.5s ease-in-out infinite;
}

@keyframes shimmer {
    from {
        background-position: 200% 0;
    }

    to {
        background-position: -200% 0;
    }
}

.loading-text {
    position: relative;
    z-index: 1;
    color: var(--text-dim);
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.summary-error {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--text-dim);
}

.btn-retry {
    padding: 10px 28px;
    font-size: 0.9rem;
    font-weight: 700;
    border: none;
    border-radius: 50px;
    background: var(--accent);
    color: #fff;
    cursor: pointer;
    text-transform: uppercase;
    flex: none;
}

.summary-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
    padding: 0 8px;
}

.badge {
    background: var(--bg-card);
    border: 1px solid #2a2a2e;
    border-radius: 20px;
    padding: 6px 14px;
    font-size: 0.75rem;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 5px;
}

.badge-label {
    color: var(--text-dim);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.03em;
}

.badge-value {
    color: var(--text);
    font-weight: 700;
}

.badge-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.cta-tagline {
    text-align: center;
    font-size: clamp(0.78rem, 2.5vw, 0.92rem);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-dim);
    margin: 22px 0 10px;
    line-height: 1.4;
}

.cta-button {
    display: block;
    width: 100%;
    margin-top: 28px;
    padding: 18px;
    font-size: clamp(1rem, 3vw, 1.15rem);
    font-weight: 800;
    border: none;
    border-radius: 50px;
    background: linear-gradient(135deg, var(--accent), #ff6b8a);
    color: #fff;
    cursor: pointer;
    text-transform: uppercase;
    text-align: center;
    text-decoration: none;
    letter-spacing: 0.04em;
    transition: transform var(--transition), box-shadow var(--transition);
    box-shadow: 0 4px 24px var(--accent-glow);
    min-height: 48px;
}

.cta-button.disabled {
    opacity: 0.35;
    pointer-events: none;
}

.cta-button:hover {
    transform: scale(1.03);
    box-shadow: 0 6px 32px var(--accent-glow);
}

/* ─── Nav Buttons ─── */

.nav-buttons {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 660px;
    padding: 14px 20px calc(14px + env(safe-area-inset-bottom, 0px));
    display: flex;
    gap: 12px;
    background: linear-gradient(transparent, var(--bg) 30%);
    z-index: 100;
}

.nav-buttons.hidden-nav {
    display: none;
}

.btn {
    flex: 1;
    padding: 15px;
    font-size: 1rem;
    font-weight: 700;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    transition: transform var(--transition), opacity var(--transition);
    min-height: 48px;
}

.btn:active {
    transform: scale(0.97);
}

.btn-next {
    background: var(--accent);
    color: #fff;
}

.btn-next:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.btn-back {
    background: #2a2a2e;
    color: var(--text);
}

.btn.hidden {
    display: none;
}

/* ─── Touch Feedback ─── */

.card:active,
.ethnicity-card:active {
    transform: scale(0.96);
}

.card.selected:active,
.ethnicity-card.selected:active {
    transform: scale(0.96);
}

/* ─── Responsive ─── */

@media (max-width: 428px) {
    #app {
        padding: 0 16px 110px;
    }

    .progress-bar {
        padding: 12px 0 10px;
    }

    .progress-segments {
        gap: 6px;
    }

    .ethnicity-card .card-label {
        font-size: 0.75rem;
        padding: 16px 4px 8px;
    }

    .badge {
        padding: 5px 10px;
        font-size: 0.7rem;
    }

    .summary-badges {
        gap: 6px;
    }
}

@media (max-width: 375px) {
    #app {
        padding: 0 12px 110px;
    }

    #step-3 .card,
    #step-4 .card,
    #step-5 .card {
        max-width: none;
        width: 100%;
    }

    #step-3 .cards-row,
    #step-4 .cards-row,
    #step-5 .cards-row {
        grid-template-columns: repeat(3, 1fr);
        gap: 6px;
    }

    .cards-2 {
        gap: 8px;
    }

    .slider-wrapper {
        gap: 10px;
    }

    .nav-buttons {
        padding: 12px 12px calc(12px + env(safe-area-inset-bottom, 0px));
    }

    .btn {
        padding: 13px;
        font-size: 0.9rem;
    }
}

@media (max-width: 340px) {
    .ethnicity-images {
        height: 100px;
    }

    .card-label {
        font-size: 0.65rem;
        padding: 14px 2px 5px;
    }

    .badge {
        padding: 4px 8px;
        font-size: 0.65rem;
    }
}

/* ─── Tablet / wider screens ─── */

@media (min-width: 768px) {

    #step-3 .card,
    #step-4 .card,
    #step-5 .card {
        max-width: 150px;
        width: 150px;
    }

    .ethnicity-card {
        max-width: 500px;
    }

    .ethnicity-images {
        height: 190px;
    }
}

/* CTA while the image is ready but the tracker session is still being fetched */
.cta-button.is-preparing { opacity: 0.6; pointer-events: none; animation: ctaPulse 1.2s ease-in-out infinite; }
@keyframes ctaPulse { 0%, 100% { opacity: 0.6; } 50% { opacity: 0.85; } }