:root {
    --primary: #5b4bdb;
    --primary-dark: #4032b0;
    --background: #f5f7ff;
    --surface: #ffffff;
    --text: #202344;
    --muted: #68708a;
    --border: #e5e8f4;
    --success: #138a59;
    --radius: 18px;
    --shadow: 0 8px 28px rgba(36, 39, 91, 0.07);
}

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

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    font-family: Arial, Helvetica, sans-serif;
    background: var(--background);
    color: var(--text);
    line-height: 1.6;
}

a {
    color: inherit;
    text-decoration: none;
}

a:focus-visible {
    outline: 3px solid #ffb703;
    outline-offset: 4px;
}

.site-header,
.site-footer {
    background: var(--surface);
    border-color: var(--border);
}

.site-header {
    border-bottom: 1px solid var(--border);
}

.navbar {
    width: min(1120px, 92%);
    min-height: 76px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--primary);
    font-size: 1.15rem;
    font-weight: 800;
}

.nav-links {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.nav-links a {
    color: var(--muted);
    font-weight: 700;
}

.nav-links a:hover {
    color: var(--primary);
}

.parent-dashboard {
    width: min(1120px, 92%);
    margin: 36px auto 64px;
}

.hero {
    padding: clamp(28px, 5vw, 52px);
    border-radius: 24px;
    background: linear-gradient(125deg, #5141cf, #8068ef);
    color: white;
    box-shadow: var(--shadow);
}

.eyebrow {
    margin-bottom: 8px;
    color: var(--primary);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 1.5px;
}

.hero .eyebrow {
    color: #e5e0ff;
}

.hero h1 {
    margin-bottom: 12px;
    font-size: clamp(1.8rem, 4vw, 2.7rem);
    line-height: 1.2;
}

.hero > p:last-child {
    max-width: 680px;
    color: #f0edff;
}

.panel {
    margin-top: 28px;
    padding: 26px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow);
}

.panel h2 {
    margin-bottom: 12px;
    font-size: clamp(1.25rem, 3vw, 1.65rem);
    line-height: 1.3;
}

.learner-panel {
    margin-top: 24px;
}

.learner-panel h2 {
    margin-bottom: 8px;
}

#parent-status,
.section-description,
#parent-progress-message {
    color: var(--muted);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-top: 24px;
}

.stat-card {
    min-width: 0;
    padding: 22px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow);
}

.stat-card > span {
    display: block;
    margin-bottom: 8px;
    font-size: 1.8rem;
}

.stat-card h2 {
    font-size: 0.95rem;
    color: var(--muted);
}

.stat-value {
    font-size: clamp(1.3rem, 3vw, 2rem);
    font-weight: 800;
    overflow-wrap: anywhere;
}

.progress-labels {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin: 14px 0;
}

.progress-labels strong {
    color: var(--primary);
}

.progress-track {
    width: 100%;
    height: 16px;
    overflow: hidden;
    border-radius: 999px;
    background: #e9e7fb;
}

.progress-fill {
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #6555df, #28b99a);
    transition: width 0.3s ease;
}

#parent-progress-message {
    margin-top: 14px;
}

.achievement-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-top: 18px;
}

.achievement-card {
    padding: 20px;
    border: 1px solid var(--border);
    border-radius: 14px;
    text-align: center;
}

.achievement-icon {
    display: block;
    margin-bottom: 8px;
    font-size: 2rem;
}

.achievement-card h3 {
    margin-bottom: 6px;
}

.achievement-card p {
    color: var(--muted);
    font-size: 0.9rem;
}

.achievement-status {
    display: inline-block;
    margin-top: 12px;
    padding: 4px 10px;
    border-radius: 999px;
    background: #eeeaff;
    color: var(--primary-dark);
    font-size: 0.8rem;
    font-weight: 800;
}

.achievement-card.earned {
    border-color: #9bdcc0;
    background: #f1fff7;
}

.achievement-card.earned .achievement-status {
    background: #d9f7e7;
    color: var(--success);
}

.achievement-card.locked {
    opacity: 0.8;
}

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

.lesson-list li {
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
}

.lesson-list li:last-child {
    border-bottom: 0;
}

.lesson-check {
    margin-right: 8px;
    color: var(--success);
    font-weight: 800;
}

.empty-message {
    color: var(--muted);
}

.primary-button {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    min-height: 46px;
    margin-top: 12px;
    padding: 12px 20px;
    border-radius: 12px;
    background: var(--primary);
    color: white;
    font-weight: 800;
    text-align: center;
}

.primary-button:hover {
    background: var(--primary-dark);
}

.privacy-note {
    margin-top: 28px;
    padding: 22px;
    border: 1px solid #d6d1ff;
    border-radius: var(--radius);
    background: #f0edff;
}

.privacy-note h2 {
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.site-footer {
    padding: 24px 4%;
    border-top: 1px solid var(--border);
    color: var(--muted);
    text-align: center;
    font-size: 0.9rem;
}

@media (max-width: 900px) {
    .stats-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .achievement-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .navbar {
        align-items: flex-start;
        flex-direction: column;
        justify-content: center;
        padding: 16px 0;
    }

    .nav-links {
        gap: 14px;
        font-size: 0.9rem;
    }

    .parent-dashboard {
        margin-top: 22px;
    }

    .panel {
        padding: 20px;
    }

    .stats-grid {
        gap: 12px;
    }

    .stat-card {
        padding: 16px;
    }

    .primary-button {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}