:root {
    --bg-page: #F5F5F7;        /* Typisch Apple lichtgrijs */
    --bg-card: #FFFFFF;        /* Puur wit voor content kaders */
    --text-main: #1D1D1F;      /* Bijna zwart voor maximale leesbaarheid */
    --text-muted: #86868B;     /* Zacht grijs voor subtitels */
    --sport-blue: #0055FF;     /* Kobalt / Helder blauw */
    --sport-blue-hover: #0044CC;
    --border-light: #E5E5EA;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased; /* Zorgt voor haarscherpe tekst op Mac/iOS */
}

body {
    background-color: var(--bg-page);
    color: var(--text-main);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.5;
    padding-bottom: 80px;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Talen Toggle Logica */
.en { display: none; }
.nl { display: block; }
span.nl { display: inline; }
body.lang-en .nl { display: none; }
body.lang-en .en { display: block; }
body.lang-en span.en { display: inline; }

/* Navigatie */
.top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 32px 24px;
    margin-bottom: 20px;
}
.logo {
    font-size: 24px;
    font-weight: 900;
    letter-spacing: -1px;
}
.lang-toggle {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: color 0.2s;
}
.lang-toggle:hover {
    color: var(--text-main);
}

/* Hero Sectie */
.hero {
    text-align: center;
    margin-bottom: 56px;
}
.pill-badge {
    display: inline-block;
    background: rgba(0, 85, 255, 0.1);
    color: var(--sport-blue);
    padding: 6px 14px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 12px;
    letter-spacing: 0.5px;
    margin-bottom: 24px;
}
.hero h1 {
    font-size: clamp(40px, 9vw, 64px);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -1.5px;
    margin-bottom: 16px;
}
.text-blue {
    color: var(--sport-blue);
}
.hero p {
    font-size: 18px;
    color: var(--text-muted);
    font-weight: 400;
    max-width: 500px;
    margin: 0 auto;
}

/* Minimalistische Quiz (Lijstvorm) */
.onboarding-quiz {
    margin-bottom: 40px;
}
.onboarding-quiz h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
    margin-left: 8px;
}

.quiz-list {
    background: var(--bg-card);
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    overflow: hidden; /* Houdt de hoekjes mooi rond */
}

.quiz-item {
    display: block;
    cursor: pointer;
    border-bottom: 1px solid var(--border-light);
}
.quiz-item:last-child {
    border-bottom: none;
}
.quiz-checkbox {
    display: none;
}

.item-content {
    display: flex;
    align-items: center;
    padding: 20px 24px;
    transition: background 0.2s;
}
.item-content:hover {
    background: #F9F9FB;
}

.item-content span {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-main);
    line-height: 1.4;
}

/* Checkbox Cirkel */
.check-circle {
    width: 28px;
    height: 28px;
    border: 2px solid var(--border-light);
    border-radius: 50%;
    margin-right: 16px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}
.check-circle svg {
    width: 16px;
    height: 16px;
    stroke: white;
    opacity: 0; /* Onzichtbaar tot aangevinkt */
    transform: scale(0.5);
    transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Actieve 'Aangevinkte' staat */
.quiz-checkbox:checked + .item-content .check-circle {
    background: var(--sport-blue);
    border-color: var(--sport-blue);
}
.quiz-checkbox:checked + .item-content .check-circle svg {
    opacity: 1;
    transform: scale(1);
}

/* Succes Paneel */
.success-panel {
    display: none;
}
.success-panel.visible {
    display: block;
    animation: fadeIn 0.4s ease;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.success-inner {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 32px 24px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}
.success-inner h2 {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 8px;
}
.success-inner p {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 24px;
}

/* Formulier */
.minimal-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.minimal-form input {
    padding: 18px 20px;
    font-size: 16px;
    font-family: 'Inter', sans-serif;
    background: var(--bg-page);
    border: 1px solid var(--border-light);
    border-radius: 14px;
    color: var(--text-main);
    outline: none;
    transition: border 0.2s, box-shadow 0.2s;
}
.minimal-form input:focus {
    border-color: var(--sport-blue);
    box-shadow: 0 0 0 3px rgba(0, 85, 255, 0.1);
}

.btn-blue {
    padding: 18px;
    font-size: 16px;
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    background: var(--sport-blue);
    color: white;
    border: none;
    border-radius: 14px;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
}
.btn-blue:hover {
    background: var(--sport-blue-hover);
}
.btn-blue:active {
    transform: scale(0.98);
}