/* ========================================
   5 Drivers Quiz - Styles
   NK Brand: Bright Mode
   ======================================== */

:root {
    /* Brand Colors */
    --nk-black: #000000;
    --nk-off-white: #F7F3ED;
    --nk-white: #ffffff;
    --nk-blue: #7FABC8;
    --nk-green: #A6BEA4;
    --nk-yellow: #C6A55B;
    --nk-orange: #E08F6A;
    --nk-lilac: #C7B9D3;

    /* Typography */
    --nk-font-serif: 'Crimson Pro', Georgia, serif;
    --nk-font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Transitions */
    --nk-transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --nk-transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   Reset & Base
   ======================================== */

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

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

body {
    font-family: var(--nk-font-sans);
    background-color: var(--nk-off-white);
    color: var(--nk-black);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ========================================
   Typography
   ======================================== */

h1, h2, h3, h4 {
    font-family: var(--nk-font-serif);
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.5rem, 7vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 5vw, 2.5rem); }
h3 { font-size: clamp(1.375rem, 3vw, 1.75rem); }
h4 { font-size: clamp(1.125rem, 2.5vw, 1.375rem); }

/* ========================================
   Layout
   ======================================== */

.screen {
    display: none;
    opacity: 0;
    transition: opacity var(--nk-transition-fast);
}

.screen.active {
    display: block;
    opacity: 1;
}

.container {
    max-width: 760px;
    margin: 0 auto;
    padding: 1.5rem 1.25rem;
}

/* ========================================
   Buttons
   ======================================== */

.btn {
    font-family: var(--nk-font-sans);
    font-size: 1rem;
    font-weight: 500;
    padding: 0.875rem 2.25rem;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--nk-transition-fast);
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: var(--nk-blue);
    color: var(--nk-black);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(127, 171, 200, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--nk-black);
    border: 1px solid rgba(0, 0, 0, 0.2);
}

.btn-secondary:hover {
    background: rgba(0, 0, 0, 0.05);
}

/* ========================================
   Intro Screen
   ======================================== */

#intro .container {
    padding-top: 2.5rem;
    padding-bottom: 2rem;
}

.intro-centered {
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
}

.intro-centered h1 {
    margin-bottom: 0.5rem;
    color: var(--nk-black);
}

.tagline {
    font-size: 1.25rem;
    color: var(--nk-blue);
    margin-bottom: 2rem;
    font-weight: 500;
}

/* Driver Icons Preview */
.intro-visual {
    margin-bottom: 2rem;
}

.driver-icons-preview {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.driver-icon-preview {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--nk-white);
    border: 2px solid var(--driver-color, var(--nk-blue));
    border-radius: 14px;
    transition: all var(--nk-transition-fast);
}

.driver-icon-preview svg {
    width: 28px;
    height: 28px;
    stroke: var(--driver-color, var(--nk-blue));
}

.driver-icon-preview:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

/* Intro Body */
.intro-body {
    text-align: center;
    color: rgba(0, 0, 0, 0.7);
    font-size: 1rem;
    line-height: 1.75;
    margin-bottom: 2rem;
}

.intro-body p {
    margin-bottom: 1.5rem;
}

.intro-body p:last-child {
    margin-bottom: 0;
}

.intro-body .core-question {
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
    color: var(--nk-black);
}

/* Drivers Preview Pills */
.drivers-preview {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.driver-pill {
    padding: 0.5rem 1rem;
    background: var(--nk-white);
    border: 1px solid var(--driver-color, var(--nk-blue));
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--driver-color, var(--nk-blue));
    transition: all var(--nk-transition-fast);
}

.driver-pill:hover {
    background: var(--driver-color, var(--nk-blue));
    color: var(--nk-white);
}

/* Metrics */
.intro-metrics {
    display: flex;
    justify-content: center;
    gap: 3rem;
    padding: 1.25rem 0;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    margin-bottom: 1.5rem;
}

.metric-item {
    text-align: center;
}

.metric-number {
    display: block;
    font-family: var(--nk-font-serif);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--nk-blue);
    line-height: 1.2;
    opacity: 0.85;
}

.metric-label {
    font-size: 0.6875rem;
    color: var(--nk-blue);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    opacity: 0.85;
}

/* CTA */
.intro-cta {
    text-align: center;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .driver-icons-preview {
        gap: 0.75rem;
    }

    .driver-icon-preview {
        width: 48px;
        height: 48px;
    }

    .driver-icon-preview svg {
        width: 24px;
        height: 24px;
    }

    .intro-metrics {
        gap: 2rem;
    }

    .drivers-preview {
        gap: 0.5rem;
    }

    .driver-pill {
        font-size: 0.75rem;
        padding: 0.375rem 0.75rem;
    }
}

/* ========================================
   Quiz Screen
   ======================================== */

#quiz {
    padding-bottom: 1.5rem;
}

.quiz-header {
    position: sticky;
    top: 0;
    background: rgba(247, 243, 237, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 0.875rem 1.25rem;
    z-index: 100;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.progress-container {
    max-width: 760px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.progress-bar {
    flex: 1;
    height: 4px;
    background: rgba(0, 0, 0, 0.08);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--nk-blue), var(--nk-green));
    border-radius: 2px;
    transition: width var(--nk-transition-medium);
}

.progress-text {
    font-size: 0.875rem;
    color: rgba(0, 0, 0, 0.5);
    white-space: nowrap;
}

.quiz-content {
    padding-top: 1.25rem;
}

.category-header {
    margin-bottom: 1.5rem;
    text-align: center;
}

.driver-icon-large {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--nk-white);
    border: 2px solid var(--driver-color, var(--nk-blue));
    border-radius: 16px;
}

.driver-icon-large svg {
    width: 32px;
    height: 32px;
    stroke: var(--driver-color, var(--nk-blue));
}

.category-header h2 {
    color: var(--nk-black);
    margin-bottom: 0.375rem;
}

.category-description {
    color: rgba(0, 0, 0, 0.6);
    font-size: 1rem;
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.5;
}

/* Questions */
.questions-container {
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
}

.question {
    background: var(--nk-white);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 14px;
    padding: 1.25rem 1.5rem;
    transition: all var(--nk-transition-fast);
}

.question:hover {
    border-color: rgba(0, 0, 0, 0.1);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.question-text {
    font-size: 1.125rem;
    line-height: 1.5;
    margin-bottom: 1rem;
    color: var(--nk-black);
}

.question-number {
    color: var(--nk-blue);
    font-weight: 600;
    margin-right: 0.375rem;
}

/* Rating Options */
.rating-options {
    display: flex;
    gap: 0.5rem;
    justify-content: flex-start;
}

.rating-option {
    position: relative;
    cursor: pointer;
}

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

.rating-value {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--nk-off-white);
    border: 2px solid rgba(0, 0, 0, 0.1);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--nk-black);
    transition: all var(--nk-transition-fast);
}

.rating-option:hover .rating-value {
    border-color: var(--driver-color, var(--nk-blue));
    background: color-mix(in srgb, var(--driver-color, var(--nk-blue)) 10%, transparent);
}

.rating-option.selected .rating-value,
.rating-option input:checked + .rating-value {
    background: var(--driver-color, var(--nk-blue));
    border-color: var(--driver-color, var(--nk-blue));
    color: var(--nk-white);
    transform: scale(1.05);
}

/* Rating Legend */
.rating-legend {
    display: none;
}

/* Inline Rating Labels */
.rating-labels {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 0.6875rem;
    color: rgba(0, 0, 0, 0.45);
    max-width: 280px;
}

.rating-labels span {
    text-align: center;
    white-space: nowrap;
}

@media (max-width: 640px) {
    .rating-labels {
        font-size: 0.5625rem;
        max-width: 240px;
    }

    .rating-value {
        width: 38px;
        height: 38px;
    }
}

/* Quiz Navigation */
.quiz-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
    padding-top: 1.25rem;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.quiz-navigation .btn-primary {
    margin-left: auto;
}

/* ========================================
   Email Capture Screen
   ======================================== */

#email-capture .container {
    padding-top: 2rem;
    padding-bottom: 2rem;
}

.email-content {
    max-width: 480px;
    margin: 0 auto;
}

/* Results Teaser */
.results-teaser {
    text-align: center;
    margin-bottom: 2rem;
}

.teaser-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(166, 190, 164, 0.2), rgba(127, 171, 200, 0.2));
    border-radius: 50%;
}

.teaser-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--nk-green);
}

.email-content h2 {
    text-align: center;
    margin-bottom: 0.5rem;
    color: var(--nk-black);
}

.teaser-subtitle {
    font-size: 1.0625rem;
    color: rgba(0, 0, 0, 0.6);
    margin-bottom: 1.5rem;
}

.teaser-preview {
    background: var(--nk-white);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 12px;
    padding: 1rem 1.25rem;
    text-align: left;
}

.teaser-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    font-size: 0.9375rem;
    color: rgba(0, 0, 0, 0.75);
}

.teaser-item:not(:last-child) {
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.teaser-check {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--nk-blue);
    border-radius: 50%;
    flex-shrink: 0;
}

.teaser-check svg {
    width: 12px;
    height: 12px;
    stroke: white;
}

/* Newsletter Signup */
.newsletter-signup {
    max-width: 520px;
    margin: 0 auto;
}

.signup-prompt {
    text-align: center;
    margin-bottom: 1.25rem;
    font-size: 1.125rem;
    color: rgba(0, 0, 0, 0.7);
}

/* Inline Form */
.inline-form {
    display: flex;
    align-items: stretch;
    background: rgba(0, 0, 0, 0.04);
    border-radius: 12px;
    overflow: hidden;
}

.inline-form input[type="email"] {
    flex: 1;
    padding: 1.125rem 1.5rem;
    font-family: var(--nk-font-sans);
    font-size: 1rem;
    background: transparent;
    border: none;
    color: var(--nk-black);
    min-width: 0;
}

.inline-form input[type="email"]:focus {
    outline: none;
}

.inline-form input[type="email"]::placeholder {
    color: rgba(0, 0, 0, 0.4);
}

.btn-inline {
    font-family: var(--nk-font-serif);
    font-size: 1.125rem;
    font-weight: 400;
    font-style: italic;
    padding: 1rem 1.75rem;
    background: var(--nk-blue);
    color: var(--nk-off-white);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all var(--nk-transition-fast);
    white-space: nowrap;
    margin: 0.375rem;
    position: relative;
}

.btn-inline:hover {
    background: #5a8aaa;
}

.btn-inline:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.spinner {
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Subscribe Checkbox */
.subscribe-checkbox {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    margin-top: 1.25rem;
    cursor: pointer;
    font-size: 1.125rem;
    color: var(--nk-black);
    line-height: 1.5;
}

.subscribe-checkbox input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.checkbox-custom {
    width: 22px;
    height: 22px;
    background: var(--nk-white);
    border: 2px solid var(--nk-blue);
    border-radius: 5px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--nk-transition-fast);
}

.checkbox-custom::after {
    content: '';
    width: 6px;
    height: 11px;
    border: solid var(--nk-white);
    border-width: 0 2.5px 2.5px 0;
    transform: rotate(45deg) translate(-1px, -1px);
    opacity: 0;
    transition: opacity var(--nk-transition-fast);
}

.subscribe-checkbox input[type="checkbox"]:checked + .checkbox-custom {
    background: var(--nk-blue);
}

.subscribe-checkbox input[type="checkbox"]:checked + .checkbox-custom::after {
    opacity: 1;
}

.subscribe-checkbox a {
    color: var(--nk-blue);
    text-decoration: underline;
}

.subscribe-checkbox a:hover {
    color: #5a8aaa;
}

.subscribe-checkbox em {
    font-family: var(--nk-font-serif);
    font-style: italic;
}

@media (max-width: 520px) {
    .inline-form {
        flex-direction: column;
        background: transparent;
    }

    .inline-form input[type="email"] {
        background: rgba(0, 0, 0, 0.04);
        border-radius: 12px;
        margin-bottom: 0.75rem;
    }

    .btn-inline {
        margin: 0;
        width: 100%;
        border-radius: 12px;
    }
}

/* ========================================
   Results Screen
   ======================================== */

#results .container {
    padding-top: 2rem;
    padding-bottom: 3rem;
    max-width: 840px;
}

.results-section {
    background: var(--nk-white);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 20px;
    padding: 2rem;
    margin-bottom: 1.25rem;
}

.results-section h3 {
    color: var(--nk-black);
    margin-bottom: 1.25rem;
    text-align: center;
    font-size: 1.75rem;
}

/* Results Hero - Dominant Driver */
.results-hero {
    text-align: center;
    padding: 2.5rem 2rem;
    background: var(--nk-white);
    border-radius: 24px;
    margin-bottom: 1.25rem;
    border: 1px solid rgba(0, 0, 0, 0.06);
}

.results-hero h2 {
    margin-bottom: 2rem;
    color: var(--nk-black);
    font-size: 2.25rem;
}

/* Dominant Driver Card */
.dominant-driver-card {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem 2rem;
    background: linear-gradient(135deg,
        color-mix(in srgb, var(--driver-color, var(--nk-blue)) 8%, transparent),
        color-mix(in srgb, var(--driver-color, var(--nk-blue)) 15%, transparent)
    );
    border: 2px solid var(--driver-color, var(--nk-blue));
    border-radius: 20px;
    max-width: 480px;
    margin: 0 auto;
}

.dominant-driver-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--nk-white);
    border: 2px solid var(--driver-color, var(--nk-blue));
    border-radius: 20px;
    flex-shrink: 0;
}

.dominant-driver-icon svg {
    width: 40px;
    height: 40px;
    stroke: var(--driver-color, var(--nk-blue));
}

.dominant-driver-info {
    text-align: left;
}

.dominant-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(0, 0, 0, 0.5);
    display: block;
    margin-bottom: 0.25rem;
}

.dominant-title {
    font-family: var(--nk-font-serif);
    font-size: 1.75rem;
    font-weight: 400;
    color: var(--driver-color, var(--nk-blue));
    margin-bottom: 0.25rem;
}

.dominant-tagline {
    font-size: 0.9375rem;
    color: rgba(0, 0, 0, 0.6);
    line-height: 1.5;
}

/* Driver Bars */
.driver-breakdown {
    padding: 2rem;
}

.driver-bars {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.driver-bar-item {
    animation: fadeInUp 0.4s ease-out both;
}

.driver-bar-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.driver-bar-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--nk-white);
    border: 1.5px solid var(--driver-color, var(--nk-blue));
    border-radius: 8px;
    flex-shrink: 0;
}

.driver-bar-icon svg {
    width: 18px;
    height: 18px;
    stroke: var(--driver-color, var(--nk-blue));
}

.driver-bar-title {
    flex: 1;
    font-weight: 500;
    color: var(--nk-black);
    font-size: 1rem;
}

.driver-bar-score {
    font-weight: 600;
    font-size: 0.9375rem;
    color: rgba(0, 0, 0, 0.6);
}

.driver-bar {
    height: 10px;
    background: rgba(0, 0, 0, 0.06);
    border-radius: 5px;
    overflow: hidden;
}

.driver-bar-fill {
    height: 100%;
    background: var(--driver-color, var(--nk-blue));
    border-radius: 5px;
    width: 0;
    transition: width 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Dominant Details */
.dominant-details {
    padding: 2rem;
}

.detail-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.detail-column {
    text-align: center;
}

.detail-column h4 {
    margin-bottom: 0.75rem;
    color: var(--nk-black);
}

.detail-column p {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: rgba(0, 0, 0, 0.7);
}

.strengths-column .section-icon svg {
    stroke: var(--nk-green);
}

.challenges-column .section-icon {
    background: linear-gradient(135deg, rgba(224, 143, 106, 0.15), rgba(198, 165, 91, 0.15));
}

.challenges-column .section-icon svg {
    stroke: var(--nk-orange);
}

/* Section Icons */
.section-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(166, 190, 164, 0.15), rgba(127, 171, 200, 0.15));
    border-radius: 12px;
}

.section-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--nk-green);
}

.section-icon.warning-icon {
    background: linear-gradient(135deg, rgba(224, 143, 106, 0.15), rgba(198, 165, 91, 0.15));
}

.section-icon.warning-icon svg {
    stroke: var(--nk-orange);
}

.section-icon.balance-icon {
    background: linear-gradient(135deg, rgba(127, 171, 200, 0.15), rgba(199, 185, 211, 0.15));
}

.section-icon.balance-icon svg {
    stroke: var(--nk-blue);
}

/* Balance Strategy */
.balance-strategy {
    text-align: center;
    padding: 2rem;
}

.balance-strategy p {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: rgba(0, 0, 0, 0.7);
    max-width: 600px;
    margin: 0 auto;
}

/* Reflection Questions */
.reflection {
    padding: 2rem;
}

.reflection-list {
    padding-left: 1.5rem;
    max-width: 600px;
    margin: 0 auto;
}

.reflection-list li {
    padding: 0.625rem 0;
    color: rgba(0, 0, 0, 0.7);
    font-size: 1.0625rem;
    line-height: 1.6;
}

.reflection-list li::marker {
    color: var(--nk-blue);
    font-weight: 600;
}

/* CTA Section */
.cta-section {
    text-align: center;
    background: linear-gradient(135deg, rgba(127, 171, 200, 0.1), rgba(166, 190, 164, 0.1));
    border: none;
    padding: 2.5rem 2rem;
}

.cta-section h3 {
    color: var(--nk-black);
    font-size: 2rem;
}

.cta-section p {
    color: rgba(0, 0, 0, 0.6);
    margin-bottom: 1.5rem;
    font-size: 1.0625rem;
    line-height: 1.7;
    max-width: 540px;
    margin-left: auto;
    margin-right: auto;
}

/* ========================================
   Responsive Styles
   ======================================== */

@media (max-width: 768px) {
    .container {
        padding: 1.25rem 1rem;
    }

    .dominant-driver-card {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
    }

    .dominant-driver-info {
        text-align: center;
    }

    .detail-columns {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .results-hero h2 {
        font-size: 1.875rem;
    }

    .results-section h3 {
        font-size: 1.5rem;
    }

    .question {
        padding: 1rem 1.25rem;
    }

    .results-section {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .rating-options {
        gap: 0.375rem;
    }

    .rating-value {
        width: 36px;
        height: 36px;
        font-size: 0.875rem;
    }

    .rating-labels span {
        font-size: 0.5rem;
    }

    .driver-icon-preview {
        width: 40px;
        height: 40px;
    }

    .driver-icon-preview svg {
        width: 20px;
        height: 20px;
    }
}

/* ========================================
   Animations
   ======================================== */

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

.screen.active .intro-content,
.screen.active .quiz-content,
.screen.active .email-content,
.screen.active .results-content {
    animation: fadeInUp 0.5s ease-out;
}

.question {
    animation: fadeInUp 0.4s ease-out both;
}

.question:nth-child(1) { animation-delay: 0.03s; }
.question:nth-child(2) { animation-delay: 0.06s; }
.question:nth-child(3) { animation-delay: 0.09s; }
.question:nth-child(4) { animation-delay: 0.12s; }
.question:nth-child(5) { animation-delay: 0.15s; }

.results-section {
    animation: fadeInUp 0.4s ease-out both;
}

.results-section:nth-child(1) { animation-delay: 0.05s; }
.results-section:nth-child(2) { animation-delay: 0.1s; }
.results-section:nth-child(3) { animation-delay: 0.15s; }
.results-section:nth-child(4) { animation-delay: 0.2s; }
.results-section:nth-child(5) { animation-delay: 0.25s; }
.results-section:nth-child(6) { animation-delay: 0.3s; }

/* ========================================
   Navigation Header
   ======================================== */

.nav-header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    z-index: 200;
}

.nk-logo-link {
    display: block;
    transition: opacity var(--nk-transition-fast);
}

.nk-logo-link:hover {
    opacity: 0.7;
}

.nk-logo-link img {
    height: 20px;
    width: auto;
    display: block;
}

/* ========================================
   Other Tests Dropdown (Landing Page)
   ======================================== */

.other-tests-dropdown {
    position: relative;
    top: auto;
    right: auto;
    z-index: 200;
}

.dropdown-trigger {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--nk-white);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    font-family: var(--nk-font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(0, 0, 0, 0.7);
    cursor: pointer;
    transition: all var(--nk-transition-fast);
}

.dropdown-trigger:hover {
    border-color: rgba(0, 0, 0, 0.2);
    color: var(--nk-black);
}

.dropdown-trigger svg {
    width: 16px;
    height: 16px;
    transition: transform var(--nk-transition-fast);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    min-width: 260px;
    background: var(--nk-white);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--nk-transition-fast);
}

.dropdown-menu.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu.open + .dropdown-trigger svg,
.other-tests-dropdown:has(.dropdown-menu.open) .dropdown-trigger svg {
    transform: rotate(180deg);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    text-decoration: none;
    color: var(--nk-black);
    transition: background var(--nk-transition-fast);
}

.dropdown-item:first-child {
    border-radius: 12px 12px 0 0;
}

.dropdown-item:last-child {
    border-radius: 0 0 12px 12px;
}

.dropdown-item:not(:last-child) {
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.dropdown-item:hover {
    background: rgba(0, 0, 0, 0.03);
}

.dropdown-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(127, 171, 200, 0.12);
    border-radius: 8px;
    flex-shrink: 0;
}

.dropdown-icon svg {
    width: 18px;
    height: 18px;
    stroke: var(--nk-blue);
}

.dropdown-text {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.dropdown-text strong {
    font-size: 0.9375rem;
    font-weight: 500;
}

.dropdown-text small {
    font-size: 0.75rem;
    color: rgba(0, 0, 0, 0.5);
}

/* ========================================
   Other Tests Bento (Results Page)
   ======================================== */

.other-tests-bento {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.other-tests-bento h4 {
    text-align: center;
    font-family: var(--nk-font-serif);
    font-size: 1.25rem;
    font-weight: 400;
    color: rgba(0, 0, 0, 0.6);
    margin-bottom: 1.25rem;
}

.bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.bento-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.5rem 1rem;
    background: var(--nk-white);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 16px;
    text-decoration: none;
    color: var(--nk-black);
    transition: all var(--nk-transition-fast);
}

.bento-card:hover {
    border-color: rgba(0, 0, 0, 0.12);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.bento-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(127, 171, 200, 0.12);
    border-radius: 12px;
    margin-bottom: 0.75rem;
}

.bento-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--nk-blue);
}

.bento-content strong {
    display: block;
    font-size: 0.9375rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.bento-content p {
    font-size: 0.75rem;
    color: rgba(0, 0, 0, 0.5);
    margin: 0;
    line-height: 1.4;
}

@media (max-width: 640px) {
    .nav-header {
        padding: 0.75rem 1rem;
        gap: 0.75rem;
    }

    .nk-logo-link img {
        height: 18px;
    }

    .dropdown-trigger {
        padding: 0.375rem 0.75rem;
        font-size: 0.8125rem;
    }

    .dropdown-menu {
        min-width: 240px;
    }

    .bento-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .bento-card {
        flex-direction: row;
        text-align: left;
        padding: 1rem;
        gap: 1rem;
    }

    .bento-icon {
        margin-bottom: 0;
        flex-shrink: 0;
    }
}