/* ============================================================
   TreeQuiz — Forest Theme Stylesheet
   Palette: cream backgrounds, soft greens, moss tones, warm browns
   ============================================================ */

/* --- Variables -------------------------------------------- */
:root {
    --cream:         #F7F4EE;
    --cream-dark:    #EDE8DC;
    --green-deep:    #2D5016;
    --green-mid:     #4A7C59;
    --green-light:   #8FB88F;
    --green-pale:    #D4E8D4;
    --moss:          #6B7C5A;
    --brown-dark:    #3C2010;
    --brown-mid:     #7B4F2E;
    --brown-light:   #C8A882;
    --card-bg:       #FFFFFF;
    --border:        #DDD4C0;
    --text-primary:  #2A1F14;
    --text-muted:    #6B5E4E;
    --radius:        12px;
    --radius-sm:     8px;
    --shadow:        0 2px 12px rgba(44, 31, 20, 0.08);
    --shadow-md:     0 4px 24px rgba(44, 31, 20, 0.12);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Georgia', 'Times New Roman', serif;
    background-color: var(--cream);
    color: var(--text-primary);
    line-height: 1.7;
    font-size: 16px;
}

h1, h2, h3, h4 {
    font-family: 'Georgia', serif;
    line-height: 1.3;
    color: var(--brown-dark);
}

p { color: var(--text-primary); }

a { color: var(--green-mid); text-decoration: none; }
a:hover { text-decoration: underline; }

/* --- Layout helpers --------------------------------------- */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

.container-narrow {
    max-width: 720px;
}

/* --- Navigation ------------------------------------------ */
.navbar {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    height: 64px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.navbar-brand {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--green-deep);
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 8px;
}

.navbar-brand:hover { text-decoration: none; color: var(--green-mid); }

.brand-leaf {
    font-size: 1.4rem;
    color: var(--green-mid);
}

.navbar-links {
    display: flex;
    gap: 24px;
    align-items: center;
}

.nav-link {
    color: var(--text-muted);
    font-size: 0.95rem;
    font-family: Arial, sans-serif;
    transition: color 0.2s;
}

.nav-link:hover { color: var(--green-deep); text-decoration: none; }

/* --- Buttons --------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 50px;
    font-size: 0.95rem;
    font-family: Arial, sans-serif;
    font-weight: 600;
    cursor: pointer;
    border: 2px solid transparent;
    transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.1s;
    white-space: nowrap;
}

.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
    background-color: var(--green-deep);
    color: #fff;
    border-color: var(--green-deep);
}
.btn-primary:hover { background-color: var(--green-mid); border-color: var(--green-mid); }

.btn-secondary {
    background-color: transparent;
    color: var(--green-deep);
    border-color: var(--green-deep);
}
.btn-secondary:hover { background-color: var(--green-pale); }

.btn-large {
    padding: 16px 40px;
    font-size: 1.05rem;
}

/* --- Hero ------------------------------------------------- */
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 48px;
    padding: 80px 64px;
    background: linear-gradient(135deg, var(--cream) 60%, var(--green-pale) 100%);
    min-height: 520px;
}

.hero-content { max-width: 560px; }

.hero-badge {
    display: inline-block;
    background: var(--green-pale);
    color: var(--green-deep);
    font-size: 0.8rem;
    font-family: Arial, sans-serif;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 4px 14px;
    border-radius: 50px;
    margin-bottom: 16px;
}

.hero-title {
    font-size: 3rem;
    color: var(--brown-dark);
    margin-bottom: 20px;
    line-height: 1.15;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 36px;
    line-height: 1.8;
}

.hero-content .btn + .btn { margin-left: 12px; }

/* Tree silhouette decoration */
.hero-visual {
    flex-shrink: 0;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    width: 220px;
}

.tree-silhouette {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.silhouette-canopy {
    width: 160px;
    height: 160px;
    background: radial-gradient(ellipse at 50% 60%, var(--green-mid), var(--green-deep));
    border-radius: 50% 50% 40% 40%;
    opacity: 0.7;
}

.silhouette-trunk {
    width: 24px;
    height: 64px;
    background: var(--brown-mid);
    border-radius: 4px;
    opacity: 0.6;
}

.silhouette-roots {
    width: 80px;
    height: 10px;
    background: var(--brown-light);
    border-radius: 50%;
    opacity: 0.4;
    margin-top: 4px;
}

/* --- Features section ------------------------------------- */
.features {
    padding: 72px 0;
    background-color: var(--card-bg);
    border-top: 1px solid var(--border);
}

.section-title {
    text-align: center;
    font-size: 1.75rem;
    margin-bottom: 48px;
    color: var(--brown-dark);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--cream);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    text-align: left;
}

.feature-number {
    font-size: 2rem;
    font-weight: bold;
    color: var(--green-light);
    font-family: Arial, sans-serif;
    margin-bottom: 12px;
}

.feature-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* --- Tree strip ------------------------------------------- */
.tree-strip {
    padding: 72px 0;
    background: var(--cream-dark);
    border-top: 1px solid var(--border);
}

.strip-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 40px;
}

.strip-item {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 18px 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    transition: box-shadow 0.2s;
}

.strip-item:hover { box-shadow: var(--shadow); }

.strip-name {
    font-size: 1rem;
    font-weight: bold;
    color: var(--brown-dark);
}

.strip-subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: Arial, sans-serif;
}

.strip-cta { text-align: center; }

/* --- Quiz ------------------------------------------------- */
.quiz-section {
    padding: 60px 0 80px;
}

.quiz-header {
    text-align: center;
    margin-bottom: 48px;
}

.quiz-header h1 { font-size: 2rem; margin-bottom: 12px; }

.quiz-intro {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 520px;
    margin: 0 auto;
}

.error-banner {
    background: #FFF0F0;
    border: 1px solid #E8B8B8;
    color: #8B2020;
    border-radius: var(--radius-sm);
    padding: 14px 20px;
    margin-bottom: 32px;
    font-family: Arial, sans-serif;
    font-size: 0.95rem;
    text-align: center;
}

.question-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 36px;
    margin-bottom: 24px;
    box-shadow: var(--shadow);
    transition: box-shadow 0.2s;
}

.question-card:hover { box-shadow: var(--shadow-md); }

.question-number {
    font-family: Arial, sans-serif;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--green-mid);
    margin-bottom: 10px;
}

.question-total { color: var(--text-muted); }

.question-prompt {
    font-size: 1.2rem;
    color: var(--brown-dark);
    margin-bottom: 24px;
    line-height: 1.5;
}

.answer-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.answer-label {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 14px 18px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    font-size: 0.98rem;
}

.answer-label:hover {
    border-color: var(--green-mid);
    background: var(--green-pale);
}

.answer-radio {
    margin-top: 3px;
    accent-color: var(--green-deep);
    flex-shrink: 0;
    width: 16px;
    height: 16px;
}

.answer-radio:checked + .answer-letter + .answer-text { color: var(--brown-dark); }

.answer-label:has(.answer-radio:checked) {
    border-color: var(--green-deep);
    background: var(--green-pale);
}

.answer-letter {
    font-weight: bold;
    color: var(--green-deep);
    font-family: Arial, sans-serif;
    font-size: 0.9rem;
    flex-shrink: 0;
    margin-top: 1px;
}

.answer-text { color: var(--text-primary); }

.quiz-submit-area {
    text-align: center;
    padding: 40px 0 16px;
}

.submit-hint {
    color: #8B2020;
    font-family: Arial, sans-serif;
    font-size: 0.9rem;
    margin-bottom: 16px;
}

/* --- Result page ------------------------------------------ */
.result-hero {
    background: linear-gradient(135deg, var(--cream) 50%, var(--green-pale) 100%);
    padding: 64px 24px 48px;
    text-align: center;
}

.result-label {
    font-family: Arial, sans-serif;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.result-tree-name {
    font-size: 3.5rem;
    margin-bottom: 8px;
    line-height: 1.1;
}

.result-title {
    font-size: 1.2rem;
    color: var(--text-muted);
}

.result-body {
    padding: 48px 24px 80px;
}

.result-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 36px;
    margin-bottom: 24px;
    box-shadow: var(--shadow);
}

.result-description {
    font-size: 1.1rem;
    line-height: 1.85;
    color: var(--text-primary);
}

.result-section-title {
    font-size: 1.05rem;
    color: var(--brown-dark);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-family: Arial, sans-serif;
    font-size: 0.85rem;
    font-weight: 700;
}

.trait-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.trait-badge {
    border: 1.5px solid;
    border-radius: 50px;
    padding: 5px 16px;
    font-size: 0.88rem;
    font-family: Arial, sans-serif;
    font-weight: 600;
    text-transform: capitalize;
}

.trait-badge-sm { padding: 3px 12px; font-size: 0.8rem; }

/* Compatibility grid */
.result-compat-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 24px;
}

.compat-card { margin-bottom: 0; }

.compat-title {
    font-size: 0.85rem !important;
    margin-bottom: 4px !important;
}

.compat-title-best { color: var(--green-deep) !important; }
.compat-title-worst { color: var(--brown-mid) !important; }

.compat-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: Arial, sans-serif;
    margin-bottom: 16px;
}

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

.compat-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.compat-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.compat-dot-worst { background: var(--brown-light); }

.compat-name {
    display: block;
    font-weight: bold;
    font-size: 0.95rem;
    color: var(--brown-dark);
    font-family: Georgia, serif;
}

.compat-subtitle {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: Arial, sans-serif;
}

.result-actions {
    text-align: center;
    display: flex;
    gap: 16px;
    justify-content: center;
    padding-top: 8px;
}

/* --- Tree Directory --------------------------------------- */
.dir-section {
    padding: 60px 0 80px;
}

.dir-header {
    text-align: center;
    margin-bottom: 52px;
}

.dir-header h1 { font-size: 2.2rem; margin-bottom: 12px; }

.dir-header p {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 480px;
    margin: 0 auto;
}

.dir-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
    margin-bottom: 52px;
}

.dir-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 28px 24px;
    box-shadow: var(--shadow);
    transition: box-shadow 0.2s, transform 0.2s;
}

.dir-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.dir-card-header {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 14px;
}

.dir-accent-bar {
    width: 4px;
    height: 44px;
    border-radius: 4px;
    flex-shrink: 0;
    margin-top: 2px;
}

.dir-tree-name {
    font-size: 1.3rem;
    margin-bottom: 2px;
}

.dir-tree-title {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-family: Arial, sans-serif;
}

.dir-description {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 16px;
}

.dir-traits {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.dir-cta { text-align: center; }

/* --- Footer ---------------------------------------------- */
.footer {
    background: var(--brown-dark);
    color: var(--brown-light);
    text-align: center;
    padding: 28px 24px;
    font-family: Arial, sans-serif;
    font-size: 0.875rem;
}

/* --- Responsive ------------------------------------------ */
@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        padding: 48px 24px;
        text-align: center;
    }

    .hero-title { font-size: 2.2rem; }

    .hero-visual { display: none; }

    .result-compat-grid {
        grid-template-columns: 1fr;
    }

    .navbar {
        padding: 0 20px;
    }

    .navbar-links { gap: 16px; }

    .question-card { padding: 24px 20px; }

    .result-card { padding: 24px 20px; }

    .result-actions { flex-direction: column; align-items: center; }
}