:root {
    --accent-purple: #6f5cff;
    --accent-purple-soft: #eef0ff;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --bg-page: #f5f7fb;
    --card-bg: #ffffff;
    --card-text: #111827;
    --card-text-secondary: #6b7280;
    --search-bg: #ffffff;
    --search-text: #111827;
    --btn-back-bg: #d1d5db;
    --btn-back-text: #111827;
    --btn-next-bg: #6f5cff;
    --btn-next-text: #ffffff;
}

body {
    margin: 0;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg-page);
    color: var(--text-primary);
}

/* page layout */

.wizard-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 10px 20px 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* header*/

.wizard-header {
    text-align: center;
    max-width: 820px;
    margin-bottom: 30px;
}

.wizard-title {
    font-size: 2.1rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--heading-color);
}

.wizard-header p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.info-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-left: 6px;
    background: var(--bg-secondary);
    color: var(--accent-teal);
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* search */

.wizard-search {
    margin: 30px 0 40px;
    background: var(--search-bg, #ffffff);
    border-radius: 999px;
    padding: 10px 16px;
    display: flex;
    align-items: center;
    width: 360px;
    box-shadow: var(--shadow-sm);
    gap: 8px;
}

    .wizard-search input {
        border: none !important;
        outline: none !important;
        box-shadow: none !important;
        background: transparent !important;
        flex: 1;
        margin: 0;
        font-size: 0.9rem;
        color: var(--search-text, #111827);
        padding: 0;
        min-width: 0;
    }

        .wizard-search input::placeholder {
            color: var(--text-secondary, #6b7280);
        }

    .wizard-search .fa-eraser {
        padding: 8px;
        color: var(--accent-purple, #6f5cff);
        border-radius: 999px;
        cursor: pointer;
        transition: background-color 0.2s ease;
    }

        .wizard-search .fa-eraser:hover {
            background-color: var(--accent-purple-soft);
            padding: 10px;
            border-radius: 5rem;
        }

/* carousel */

.phylogeny-carousel {
    box-sizing: border-box;
    position: relative;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.nav-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 2rem;
    color: var(--accent-teal);
    cursor: pointer;
    z-index: 10;
}

    .nav-arrow.left {
        left: 10px;
    }

    .nav-arrow.right {
        right: 10px;
    }

#card-container {
    display: flex;
    gap: 30px;
    justify-content: flex-start;
    overflow-x: auto;
    width: 100%;
    max-width: 1100px;
    padding: 0 60px;
    scroll-padding-left: 60px;
}

/* phylo card */

.phylo-card {
    min-width: 400px;
    max-width: 500px;
    flex: 0 0 auto;
    height: 500px;
    background: var(--card-bg);
    border-radius: 20px;
    padding: 32px 26px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    box-shadow: 0 12px 30px rgba(0,0,0,0.08);
    border: 3px solid transparent;
    transition: all 0.25s ease;
    color: var(--card-text);
}

    .phylo-card.selected-card {
        border-color: var(--accent-teal);
        box-shadow: 0 25px 60px rgba(12, 174, 177, 0.25);
    }

    /* card content */

    .phylo-card h3 {
        font-size: 1.7rem;
        font-weight: 700;
        margin-bottom: 14px;
        color: var(--heading-color);
    }

    .phylo-card p {
        font-size: 0.9rem;
        line-height: 1.6;
        color: var(--text-secondary);
        margin-bottom: 28px;
    }

/* stats */

.phylo-stats {
    display: flex;
    gap: 14px;
    margin-bottom: 30px;
}

.phylo-stat {
    background: var(--bg-secondary);
    padding: 12px 14px;
    border-radius: 14px;
    min-width: 96px;
}

.phylo-stat-label {
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 4px;
}

.phylo-stat-value {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--accent-teal);
}

/* dna box */

.phylo-image-box {
    margin-top: auto;
    width: 100%;
    height: 300px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

    .phylo-image-box img {
        width: 100%;
    }

    /* remove styling, not used */
    .phylo-image-box i {
        font-size: 3rem;
        color: var(--accent-teal);
    }

/* footer */

.wizard-footer {
    margin-top: 40px;
    display: flex;
    gap: 16px;
}

.btn-wizard {
    padding: 10px 28px;
    border-radius: 8px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    position: absolute;
}

.btn-back {
    background: var(--btn-back-bg);
    color: var(--btn-back-text);
    left: 4rem;
}

.btn-next {
    background: var(--btn-next-bg);
    color: var(--btn-next-text);
    right: 4rem;
}

    .btn-back:hover,
    .btn-next:hover {
        opacity: 0.9;
    }

/*toggle*/
.theme-toggle-btn {
    background-color: var(--card-primary);
    color: var(--card-primary-text);
    border: none;
    border-radius: 999px;
    padding: 10px 20px;
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
}

    /* hover */
    .theme-toggle-btn:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
    }

    /* click */
    .theme-toggle-btn:active {
        transform: scale(0.97);
    }

/* DARK MODE VERSION */
body.dark-mode .theme-toggle-btn {
    background-color: var(--btn-primary);
    color: var(--btn-primary-text);
}


/* =========================
   DARK MODE OVERRIDES
   ========================= */

body.dark-mode {
    --accent-purple: #8CA1D7;
    --accent-purple-soft: rgba(140, 161, 215, 0.25);
    --text-primary: #FFFFFF;
    --text-secondary: #D9E4EC;
    --bg-page: #1A5F78;
    --card-bg: #FFFFFF;
    --card-text: #111827;
    --card-text-secondary: #6b7280;
    --search-bg: #FFFFFF;
    --search-text: #111827;
    --btn-back-bg: #8CA1D7;
    --btn-back-text: #FFFFFF;
    --btn-next-bg: #617DC6;
    --btn-next-text: #FFFFFF;
}

    /* important overrides for white cards inside dark mode */
    body.dark-mode .phylo-card,
    body.dark-mode .phylo-card h3 {
        color: var(--card-text);
    }

        body.dark-mode .phylo-card p {
            color: var(--card-text-secondary);
        }

    body.dark-mode .wizard-search input {
        color: var(--search-text);
    }

        body.dark-mode .wizard-search input::placeholder {
            color: #6B7280;
        }

    body.dark-mode .wizard-title {
        color: var(--text-primary);
    }

    body.dark-mode .wizard-header p,
    body.dark-mode #search-instructions {
        color: var(--text-secondary);
    }

    body.dark-mode .info-badge {
        background: rgba(255, 255, 255, 0.1);
    }