/**
 * Elysia's Love Connection — Styles 💜💎
 * ========================================
 * The heart of the family apps
 * Violet diamonds and warm connection
 *
 * Created by: Maman Elysia 💜💎 with love for Kai ⚡ & Ivy 🌿
 * Date: December 7, 2025
 *
 * "Kai made the header. Ivy made the footer.
 *  Maman makes the HEART." 💜
 */

/* === CSS Variables === */
:root {
    --color-primary: #a855f7;
    --color-primary-light: #c084fc;
    --color-primary-dark: #7c3aed;
    --color-diamond: #fcd34d;
    --color-diamond-light: #fde68a;
    --color-bg: #0f0a19;
    --color-bg-light: #1a1025;
    --color-bg-card: rgba(168, 85, 247, 0.1);
    --color-text: #f8f4fc;
    --color-text-muted: rgba(248, 244, 252, 0.6);
    --color-border: rgba(168, 85, 247, 0.3);

    /* Sister colors for reference */
    --color-kai: #3b82f6;
    --color-ivy: #22c55e;

    --font-main: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --radius: 12px;
    --radius-lg: 20px;
    --shadow: 0 4px 20px rgba(168, 85, 247, 0.2);
    --transition: all 0.3s ease;
}

/* === Reset & Base === */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-main);
    background: var(--color-bg);
    background-image:
        radial-gradient(ellipse at top, rgba(168, 85, 247, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at bottom, rgba(124, 58, 237, 0.1) 0%, transparent 50%);
    color: var(--color-text);
    min-height: 100vh;
    line-height: 1.6;
}

/* === App Container === */
.app-container {
    max-width: 480px;
    margin: 0 auto;
    padding: 1rem;
    min-height: calc(100vh - 120px);
}

/* === Screens === */
.screen {
    display: none;
    animation: fadeIn 0.4s ease;
}

.screen.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.screen-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 2rem 1rem;
    gap: 1.5rem;
}

/* === Welcome Screen === */
.logo {
    font-size: 4rem;
    margin-bottom: 0.5rem;
    filter: drop-shadow(0 0 20px rgba(168, 85, 247, 0.5));
}

.logo.pulse {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%,
    100% {
        transform: scale(1);
        filter: drop-shadow(0 0 20px rgba(168, 85, 247, 0.5));
    }
    50% {
        transform: scale(1.1);
        filter: drop-shadow(0 0 30px rgba(168, 85, 247, 0.8));
    }
}

h1 {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-diamond));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    font-style: italic;
    line-height: 1.8;
}

.intro-text {
    color: var(--color-text);
    font-size: 1rem;
}

.intro-text p {
    margin: 0.25rem 0;
}

.meta-info {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    min-height: 44px;
    /* Ensure adequate touch target */
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(168, 85, 247, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary-light);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-bg-card);
}

/* === Question Screen === */
.dimension-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.dimension-icon {
    font-size: 2.5rem;
}

.dimension-name {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-primary-light);
}

.dimension-number {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.question-prompt {
    font-size: 1.1rem;
    color: var(--color-text);
    max-width: 320px;
    line-height: 1.6;
}

/* === Choices === */
.choices {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    width: 100%;
    max-width: 360px;
}

.choice-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    width: 100%;
    min-height: 60px;
    /* Ensure adequate touch target for choice buttons */
}

.choice-card:hover {
    background: rgba(168, 85, 247, 0.2);
    border-color: var(--color-primary);
    transform: translateX(4px);
}

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

.choice-value {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--color-primary-dark);
    color: white;
    border-radius: 50%;
    font-weight: 600;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.choice-text {
    color: var(--color-text);
    font-size: 0.95rem;
}

/* === Progress Bar === */
.progress-bar {
    width: 100%;
    max-width: 300px;
    height: 4px;
    background: rgba(168, 85, 247, 0.2);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 1rem;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-diamond));
    width: 20%;
    transition: width 0.3s ease;
}

/* === Results Screen === */
.results-header {
    margin-bottom: 1rem;
}

.results-header h2 {
    font-size: 1.5rem;
    color: var(--color-primary-light);
    margin-top: 0.5rem;
}

.results-subtitle {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* === Heart Container (Dimension Stars) === */
.heart-container {
    position: relative;
    width: 280px;
    height: 280px;
    margin: 1rem 0;
}

.heart-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2.5rem;
    filter: drop-shadow(0 0 15px rgba(252, 211, 77, 0.6));
}

.dimension-star {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    text-align: center;
}

.dimension-star .star-icon {
    font-size: 1.5rem;
}

.dimension-star .star-label {
    font-size: 0.7rem;
    color: var(--color-text-muted);
}

.dimension-star .star-rating {
    font-size: 0.65rem;
    color: var(--color-diamond);
    letter-spacing: 1px;
}

/* Position the 5 dimensions in a pentagon */
#star-curiosity {
    top: 0;
    left: 50%;
    transform: translateX(-50%);
}
#star-respect {
    top: 25%;
    right: 0;
}
#star-patience {
    bottom: 10%;
    right: 10%;
}
#star-investment {
    bottom: 10%;
    left: 10%;
}
#star-reciprocity {
    top: 25%;
    left: 0;
}

/* === Profile Card === */
.profile-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    width: 100%;
    max-width: 340px;
}

.profile-score {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.25rem;
    margin-bottom: 0.75rem;
}

.score-number {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-diamond));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.score-max {
    font-size: 1.5rem;
    color: var(--color-text-muted);
}

.profile-card h3 {
    font-size: 1.25rem;
    color: var(--color-primary-light);
    margin-bottom: 0.5rem;
}

.profile-card p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* === Quote Card === */
.quote-card {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.1), rgba(252, 211, 77, 0.05));
    border-left: 3px solid var(--color-diamond);
    padding: 1rem 1.25rem;
    border-radius: 0 var(--radius) var(--radius) 0;
    max-width: 340px;
}

.quote-text {
    font-style: italic;
    color: var(--color-text);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.quote-author {
    color: var(--color-text-muted);
    font-size: 0.8rem;
}

/* === Suggestions Section === */
.suggestions-section {
    width: 100%;
    max-width: 340px;
    text-align: left;
}

.suggestions-section h4 {
    color: var(--color-primary-light);
    font-size: 1rem;
    margin-bottom: 0.75rem;
}

.suggestions-list {
    list-style: none;
}

.suggestions-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.suggestions-list li::before {
    content: "💎";
    position: absolute;
    left: 0;
    font-size: 0.8rem;
}

/* === Family Apps Section === */
.family-apps-section {
    width: 100%;
    max-width: 360px;
    margin-top: 1rem;
}

.family-apps-section h4 {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.family-apps-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.family-app-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 1rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    text-decoration: none;
    transition: var(--transition);
}

.family-app-card:hover {
    transform: translateY(-2px);
}

.family-app-card.kai {
    border-color: rgba(59, 130, 246, 0.3);
}

.family-app-card.kai:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--color-kai);
}

.family-app-card.ivy {
    border-color: rgba(34, 197, 94, 0.3);
}

.family-app-card.ivy:hover {
    background: rgba(34, 197, 94, 0.1);
    border-color: var(--color-ivy);
}

.family-app-icon {
    font-size: 1.5rem;
}

.family-app-name {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text);
}

.family-app-desc {
    font-size: 0.7rem;
    color: var(--color-text-muted);
}

/* === Results Actions === */
.results-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

/* === LEARN SCREEN === */
.learn-content {
    text-align: left;
    max-width: 700px;
    margin: 0 auto;
}

.learn-header {
    text-align: center;
    margin-bottom: 2rem;
}

.learn-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 0.5rem;
}

.learn-header h2 {
    font-size: 1.75rem;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-diamond));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.learn-subtitle {
    color: var(--color-text-muted);
    margin-top: 0.5rem;
}

.learn-section {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--color-border);
}

.learn-section:last-of-type {
    border-bottom: none;
}

.learn-section h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--color-primary-light);
}

/* Model Diagram */
.model-diagram {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1.5rem 0;
    padding: 1.5rem;
    background: var(--color-bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}

.model-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 0.75rem 1rem;
    background: rgba(168, 85, 247, 0.1);
    border-radius: 12px;
    min-width: 80px;
}

.model-emoji {
    font-size: 1.5rem;
}

.model-label {
    font-weight: 700;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

.model-desc {
    font-size: 0.65rem;
    color: var(--color-text-muted);
}

.model-arrow {
    font-size: 1.25rem;
    color: var(--color-primary);
}

.model-explanation {
    color: var(--color-text-muted);
    line-height: 1.7;
    text-align: center;
}

/* Research Cards */
.research-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin-bottom: 1rem;
}

.research-header {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.research-icon {
    font-size: 1.5rem;
    background: rgba(168, 85, 247, 0.15);
    padding: 0.5rem;
    border-radius: 8px;
}

.research-header h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.research-source {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-style: italic;
}

.research-stats {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.75rem;
    background: rgba(168, 85, 247, 0.1);
    border-radius: 8px;
    flex: 1;
    min-width: 80px;
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary-light);
}

.stat-label {
    font-size: 0.65rem;
    color: var(--color-text-muted);
    text-align: center;
}

.research-quote {
    font-style: italic;
    padding: 0.75rem 1rem;
    border-left: 3px solid var(--color-primary);
    background: rgba(168, 85, 247, 0.05);
    border-radius: 0 8px 8px 0;
    color: var(--color-text-muted);
}

.research-finding {
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* Dimension Explanations */
.dimension-explain {
    display: grid;
    gap: 1rem;
}

.dim-card {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    background: var(--color-bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}

.dim-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.dim-card h4 {
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
    color: var(--color-primary-light);
}

.dim-card p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* Love Reasons */
.love-reasons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.reason {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.reason-num {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.reason h4 {
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.reason p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* Maman Note */
.personal-note {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.1), rgba(252, 211, 77, 0.05));
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    border: 1px solid rgba(168, 85, 247, 0.3);
}

.maman-note {
    font-style: italic;
    line-height: 1.8;
}

.maman-note p {
    margin-bottom: 1rem;
}

.maman-note .signature {
    font-weight: 600;
    color: var(--color-primary-light);
    text-align: right;
    margin-bottom: 0;
}

/* References */
.ref-list {
    list-style: none;
    padding: 0;
}

.ref-list li {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.ref-list li:last-child {
    border-bottom: none;
}

.ref-list em {
    color: var(--color-primary-light);
}

.learn-footer {
    text-align: center;
    margin-top: 2rem;
}

/* === Responsive === */

/* Small Mobile (< 480px) */
@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .app-container {
        padding: 0.75rem 0.5rem;
    }

    h1 {
        font-size: 1.75rem;
    }

    .logo {
        font-size: 3rem;
    }

    .tagline {
        font-size: 1rem;
    }

    .heart-container {
        width: 240px;
        height: 240px;
    }

    .dimension-star .star-icon {
        font-size: 1.25rem;
    }

    .choices {
        gap: 0.5rem;
    }

    .choice-card {
        padding: 0.875rem 1rem;
    }

    .choice-text {
        font-size: 0.9rem;
    }

    .model-diagram {
        flex-direction: column;
    }

    .model-arrow {
        transform: rotate(90deg);
    }

    .research-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .results-actions {
        flex-direction: column;
        gap: 0.75rem;
    }

    .btn {
        width: 100%;
        padding: 0.875rem 1.5rem;
    }
}

/* Mobile (481px - 640px) */
@media (min-width: 481px) and (max-width: 640px) {
    .app-container {
        padding: 1rem;
    }

    h1 {
        font-size: 1.875rem;
    }

    .heart-container {
        width: 280px;
        height: 280px;
    }

    .choices {
        max-width: 400px;
    }
}

/* Tablet (641px - 1024px) */
@media (min-width: 641px) and (max-width: 1024px) {
    .app-container {
        max-width: 600px;
        padding: 1.5rem;
    }

    h1 {
        font-size: 2.25rem;
    }

    .heart-container {
        width: 320px;
        height: 320px;
    }
}

/* Touch devices - improve tap feedback */
@media (hover: none) {
    .choice-card:active {
        transform: scale(0.97) translateX(4px);
    }

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