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

:root {
    --primary: #ff6b9d;
    --primary-dark: #e85a8a;
    --secondary: #c44569;
    --accent: #ff8fab;
    --bg-start: #fff5f7;
    --bg-end: #ffe4ec;
    --card-bg: rgba(255, 255, 255, 0.85);
    --card-border: rgba(255, 107, 157, 0.2);
    --text-primary: #2d3436;
    --text-secondary: #636e72;
    --text-muted: #b2bec3;
    --shadow-sm: 0 2px 8px rgba(196, 69, 105, 0.08);
    --shadow-md: 0 8px 32px rgba(196, 69, 105, 0.12);
    --shadow-lg: 0 16px 48px rgba(196, 69, 105, 0.18);
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 28px;
    --radius-full: 9999px;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", sans-serif;
    background: linear-gradient(135deg, var(--bg-start) 0%, var(--bg-end) 50%, var(--bg-start) 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    color: var(--text-primary);
    overflow-x: hidden;
}

.preview-page {
    min-height: 100vh;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* Floating decorations */
.floating-shapes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.12;
    animation: float 20s ease-in-out infinite;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    top: -100px;
    right: -50px;
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, var(--accent), var(--primary));
    bottom: 10%;
    left: -80px;
    animation-delay: -5s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, var(--secondary), var(--accent));
    top: 40%;
    right: 5%;
    animation-delay: -10s;
}

.shape-4 {
    width: 100px;
    height: 100px;
    background: var(--primary);
    bottom: 20%;
    right: 20%;
    animation-delay: -7s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    33% { transform: translateY(-20px) rotate(5deg); }
    66% { transform: translateY(10px) rotate(-3deg); }
}

.container {
    position: relative;
    z-index: 1;
    flex: 1;
    max-width: 720px;
    margin: 0 auto;
    padding: 24px 20px;
    width: 100%;
}

/* Page transitions */
.page {
    display: none;
    opacity: 0;
    transform: translateY(24px);
}

.page.active {
    display: block;
    animation: pageEnter 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.page.exit {
    animation: pageExit 0.3s ease-in forwards;
}

@keyframes pageEnter {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pageExit {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-16px);
    }
}

/* ===== START PAGE ===== */
#start-page {
    text-align: center;
    padding: 48px 0;
}

.logo-wrapper {
    position: relative;
    display: inline-block;
    margin-bottom: 24px;
}

.logo {
    font-size: 80px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 50%, var(--accent) 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 6px;
    animation: logoShimmer 3s ease-in-out infinite;
    position: relative;
}

@keyframes logoShimmer {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.logo-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(ellipse, rgba(255, 107, 157, 0.3) 0%, transparent 70%);
    filter: blur(20px);
    z-index: -1;
}

.main-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.subtitle {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    line-height: 1.6;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

.description {
    font-size: 18px;
    font-weight: 600;
    color: var(--secondary);
    margin-bottom: 36px;
}

.variant-selector {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin: 0 auto 28px;
    max-width: 640px;
    box-shadow: var(--shadow-md);
}

.variant-selector-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 14px;
}

.variant-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.variant-card {
    border: 1px solid rgba(255, 107, 157, 0.18);
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-md);
    padding: 16px 14px;
    text-align: left;
    font: inherit;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-height: 112px;
}

.variant-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.variant-card.is-active {
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.16), rgba(196, 69, 105, 0.1));
    border-color: var(--secondary);
    box-shadow: var(--shadow-sm);
}

.variant-card:focus-visible {
    outline: 3px solid rgba(196, 69, 105, 0.22);
    outline-offset: 3px;
}

.variant-card-label {
    font-size: 15px;
    font-weight: 700;
}

.variant-card-meta {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.5;
}

.variant-caption {
    margin-top: 14px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 40px;
    font-size: 17px;
    font-weight: 600;
    font-family: inherit;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.btn-primary::before, .btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: translateX(-100%);
    transition: transform 0.5s;
}

.btn-primary:hover::before, .btn-secondary:hover::before {
    transform: translateX(100%);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: var(--shadow-md), 0 0 0 0 rgba(255, 107, 157, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg), 0 0 20px rgba(255, 107, 157, 0.3);
}

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

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: var(--shadow-sm);
}

.btn-secondary {
    background: white;
    color: var(--secondary);
    border: 2px solid var(--primary);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.btn-secondary:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

.btn-primary:focus-visible, .btn-secondary:focus-visible {
    outline: 3px solid rgba(196, 69, 105, 0.28);
    outline-offset: 3px;
}

/* Info card */
.info {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 28px 32px;
    margin: 40px auto;
    max-width: 360px;
    box-shadow: var(--shadow-md);
}

.info p {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 10px 0;
    font-size: 15px;
    color: var(--text-secondary);
}

.info p:not(:last-child) {
    border-bottom: 1px solid rgba(196, 69, 105, 0.1);
}

/* ===== TEST PAGE ===== */
.progress-bar {
    width: 100%;
    height: 6px;
    background: rgba(255, 107, 157, 0.15);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: 20px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: var(--radius-full);
    transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: progressShine 2s infinite;
}

@keyframes progressShine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.question-counter {
    text-align: center;
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 24px;
}

.question-counter span {
    color: var(--secondary);
    font-weight: 700;
    font-size: 16px;
}

.question-container {
    background: var(--card-bg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    box-shadow: var(--shadow-lg);
    margin-bottom: 24px;
    min-height: 380px;
}

.question-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: 28px;
}

.options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.option {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    background: rgba(255, 255, 255, 0.6);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    padding: 18px 20px;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    font-size: 15px;
    text-align: left;
    color: var(--text-secondary);
    position: relative;
    overflow: hidden;
}

.option-input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.option-text {
    position: relative;
    display: block;
    width: 100%;
    line-height: 1.6;
}

.option::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary);
    transform: scaleY(0);
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.option:hover {
    background: white;
    border-color: var(--primary);
    transform: translateX(6px);
    color: var(--text-primary);
}

.option:focus-within {
    background: white;
    border-color: var(--secondary);
    color: var(--text-primary);
    box-shadow: 0 0 0 4px rgba(255, 107, 157, 0.15);
    transform: translateX(6px);
}

.option:hover::before {
    transform: scaleY(1);
}

.option.selected {
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.12), rgba(196, 69, 105, 0.08));
    border-color: var(--secondary);
    color: var(--text-primary);
    font-weight: 500;
    transform: translateX(6px);
}

.option.selected::before {
    transform: scaleY(1);
    background: var(--secondary);
}

/* Selection animation */
@keyframes selectPulse {
    0% { box-shadow: 0 0 0 0 rgba(196, 69, 105, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(196, 69, 105, 0); }
    100% { box-shadow: 0 0 0 0 rgba(196, 69, 105, 0); }
}

.option.selected {
    animation: selectPulse 0.4s ease-out;
}

.navigation {
    display: flex;
    gap: 16px;
}

.navigation button {
    flex: 1;
    padding: 14px 24px;
}

/* ===== RESULT PAGE ===== */
.result-container {
    background: var(--card-bg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 48px 36px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.result-media {
    width: min(100%, 320px);
    margin: 0 auto 24px;
    aspect-ratio: 1 / 1;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(255, 245, 247, 0.95));
    border: 1px solid rgba(255, 107, 157, 0.14);
    box-shadow: var(--shadow-md);
}

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

.preview-container {
    max-width: 1280px;
}

.preview-shell {
    display: grid;
    grid-template-columns: minmax(260px, 320px) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
}

.preview-sidebar {
    position: sticky;
    top: 24px;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-md);
}

.preview-link {
    display: inline-flex;
    align-items: center;
    margin-bottom: 12px;
    color: var(--secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
}

.preview-title {
    font-size: 28px;
    margin-bottom: 10px;
}

.preview-hint {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 14px;
    margin-bottom: 18px;
}

.preview-toggle-group {
    display: inline-flex;
    padding: 4px;
    border-radius: var(--radius-full);
    background: rgba(255, 107, 157, 0.1);
    margin-bottom: 18px;
}

.preview-toggle {
    border: none;
    background: transparent;
    color: var(--text-secondary);
    padding: 10px 18px;
    border-radius: var(--radius-full);
    font: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.preview-toggle.is-active {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: var(--shadow-sm);
}

.preview-controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.preview-chip {
    border: 1px solid rgba(255, 107, 157, 0.18);
    background: rgba(255, 255, 255, 0.82);
    color: var(--text-primary);
    padding: 12px 14px;
    border-radius: var(--radius-md);
    font: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.preview-chip:hover, .preview-chip.is-active {
    border-color: var(--secondary);
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.14), rgba(196, 69, 105, 0.1));
    transform: translateY(-1px);
}

.preview-main {
    min-width: 0;
}

.preview-stage {
    width: 100%;
    margin: 0 auto;
    transition: max-width 0.25s ease;
}

.preview-stage[data-preview-mode="desktop"] {
    max-width: 760px;
}

.preview-stage[data-preview-mode="mobile"] {
    max-width: 390px;
}

.result-type {
    font-size: 42px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 32px;
    letter-spacing: 2px;
}

.result-code {
    margin-top: -18px;
    margin-bottom: 24px;
    color: var(--text-muted);
    font-size: 13px;
    letter-spacing: 1px;
}

.result-dimensions {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    margin-bottom: 32px;
}

.dimension {
    background: linear-gradient(180deg, rgba(255, 107, 157, 0.08), rgba(255, 107, 157, 0.02));
    border: 1px solid rgba(255, 107, 157, 0.15);
    border-radius: var(--radius-md);
    padding: 16px 8px;
}

.dimension-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.dimension-bar {
    width: 100%;
    height: 4px;
    background: rgba(255, 107, 157, 0.15);
    border-radius: var(--radius-full);
    margin-bottom: 8px;
    overflow: hidden;
}

.dimension-fill {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.dimension-fill.low { background: #74b9ff; width: 33%; }
.dimension-fill.mid { background: #fdcb6e; width: 66%; }
.dimension-fill.high { background: var(--primary); width: 100%; }

.dimension-value {
    font-size: 14px;
    font-weight: 700;
    color: var(--secondary);
}

.result-description {
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-md);
    padding: 24px;
    margin-bottom: 24px;
    text-align: left;
}

.result-description h3 {
    color: var(--secondary);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
}

.result-description p {
    line-height: 1.8;
    color: var(--text-secondary);
    font-size: 14px;
}

.result-note {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid rgba(196, 69, 105, 0.12);
    color: var(--text-primary) !important;
}

.result-quote {
    font-style: italic;
    color: var(--primary) !important;
    margin-top: 16px !important;
    padding-left: 16px;
    border-left: 3px solid var(--primary);
}

.result-traits {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-bottom: 32px;
}

.trait-tag {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 8px 16px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.share-section {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 0;
}

/* ===== FOOTER ===== */
footer {
    text-align: center;
    padding: 24px;
    color: var(--text-muted);
    font-size: 13px;
    position: relative;
    z-index: 1;
}

footer a {
    color: var(--secondary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;
}

footer a:hover {
    color: var(--primary);
}

footer a:focus-visible {
    outline: 2px solid rgba(196, 69, 105, 0.3);
    outline-offset: 3px;
    border-radius: 6px;
}

footer p {
    margin: 5px 0;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
    .preview-shell {
        grid-template-columns: 1fr;
    }
    .preview-sidebar {
        position: static;
        top: auto;
    }
    .preview-controls {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .preview-stage[data-preview-mode="desktop"],
    .preview-stage[data-preview-mode="mobile"] {
        max-width: 100%;
    }
    .logo { font-size: 56px; letter-spacing: 4px; }
    .main-title { font-size: 22px; }
    .subtitle { font-size: 14px; }
    .description { font-size: 16px; }
    .variant-grid { grid-template-columns: 1fr; }
    .variant-card { min-height: auto; }
    .question-container { padding: 28px 24px; min-height: auto; }
    .question-title { font-size: 18px; }
    .option { padding: 16px; font-size: 14px; }
    .result-container { padding: 32px 24px; }
    .result-media { width: min(100%, 280px); }
    .result-type { font-size: 32px; }
    .result-dimensions { grid-template-columns: repeat(3, 1fr); }
    .result-dimensions .dimension:nth-child(4),
    .result-dimensions .dimension:nth-child(5) {
        grid-column: span 1;
    }
    .navigation { flex-direction: column; }
    .navigation button { width: 100%; }
    .info { padding: 24px; margin: 32px auto; }
}

@media (max-width: 380px) {
    .preview-controls {
        grid-template-columns: 1fr;
    }
    .result-dimensions { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .result-dimensions .dimension:last-child {
        grid-column: span 2;
    }
}