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

:root {
    --primary: #d35400;
    --primary-dark: #b84800;
    --bg: #faf8f5;
    --card-bg: #fff;
    --text: #2c2c2c;
    --text-light: #666;
    --border: #e0dcd7;
    --radius: 10px;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container { max-width: 720px; margin: 0 auto; padding: 0 20px; width: 100%; }

/* Header */
header {
    background: var(--primary);
    color: #fff;
    padding: 20px 0;
    text-align: center;
}
header h1 { font-size: 1.6rem; }
header h1 a { color: #fff; text-decoration: none; }
header .tagline { font-size: 0.9rem; opacity: 0.85; margin-top: 4px; }

/* Progress bar */
.progress-bar {
    display: flex;
    margin: 24px 0;
    gap: 4px;
}
.progress-bar .step {
    flex: 1;
    text-align: center;
    padding: 10px 4px;
    background: var(--border);
    color: var(--text-light);
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 6px;
    transition: background 0.3s, color 0.3s;
}
.progress-bar .step span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: rgba(0,0,0,0.1);
    font-size: 0.75rem;
    margin-right: 4px;
}
.progress-bar .step.active {
    background: var(--primary);
    color: #fff;
}
.progress-bar .step.active span { background: rgba(255,255,255,0.25); }

/* Main */
main { flex: 1; padding-bottom: 40px; }

/* Form steps */
.form-step { display: none; }
.form-step.active { display: block; }
.form-step h2 { font-size: 1.4rem; margin-bottom: 20px; text-align: center; }

/* Hero (step 1) */
.hero {
    text-align: center;
    padding: 8px 0 20px;
}
.hero h2 {
    font-size: 1.7rem;
    margin-bottom: 10px;
    line-height: 1.3;
}
.hero-sub {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.6;
}
.step-label {
    text-align: center;
    font-size: 1.1rem;
    margin-bottom: 16px;
    color: var(--text);
}
.trust-bar {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-top: 8px;
    padding: 14px 0;
    font-size: 0.85rem;
    color: var(--text-light);
}
.trust-bar span { white-space: nowrap; }

/* Cards grid (step 1) */
.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}
.card-grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
    background: var(--card-bg);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 16px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.15s;
    font: inherit;
    color: var(--text);
}
.card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}
.card-icon { font-size: 2.2rem; margin-bottom: 10px; }
.card h3 { font-size: 1rem; margin-bottom: 6px; }
.card p { font-size: 0.8rem; color: var(--text-light); }

/* Product list (step 2) */
.product-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }
.product-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--card-bg);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 20px;
    cursor: pointer;
    transition: border-color 0.2s, box-shadow 0.2s;
    font: inherit;
    color: var(--text);
    text-align: left;
    width: 100%;
}
.product-card:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.product-card.selected { border-color: var(--primary); background: #fef5ee; box-shadow: 0 0 0 1px var(--primary); }
.product-info strong { display: block; font-size: 1rem; }
.product-unit { font-size: 0.85rem; color: var(--text-light); }
.product-price { font-size: 1.2rem; font-weight: 700; color: var(--primary); white-space: nowrap; }

/* Quantity */
.quantity-section {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 20px;
    text-align: center;
    border: 1px solid var(--border);
}
.quantity-section label { font-weight: 500; margin-bottom: 10px; display: block; }
.quantity-control { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.qty-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card-bg);
    font-size: 1.2rem;
    cursor: pointer;
    font: inherit;
    color: var(--text);
}
.qty-btn:hover { background: #f0ebe6; }
#quantity {
    width: 70px;
    text-align: center;
    font-size: 1.1rem;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font: inherit;
}
.total-price { font-size: 1.1rem; color: var(--primary); }

/* Form fields */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 20px;
}
.form-group.full-width { grid-column: 1 / -1; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 500; margin-bottom: 4px; }
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font: inherit;
    font-size: 0.95rem;
    transition: border-color 0.2s;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--primary); outline: none; }

/* Checkbox sections */
.checkbox-section { margin-bottom: 16px; }
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-weight: 500;
    padding: 10px 0;
}
.checkbox-label input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--primary); }
.collapsible {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}
.collapsible.open { max-height: 300px; }
.collapsible .form-grid,
.collapsible .form-group { margin-top: 10px; }

/* Radio groups */
.form-section { margin-bottom: 20px; }
.form-section h3 { font-size: 1rem; margin-bottom: 10px; }
.radio-group { display: flex; flex-direction: column; gap: 8px; }
.radio-label {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    transition: border-color 0.2s;
}
.radio-label:hover { border-color: var(--primary); }
.radio-label input[type="radio"] { accent-color: var(--primary); width: 18px; height: 18px; }
.radio-label input[type="radio"]:checked + span { font-weight: 600; }

/* Buttons */
.btn-row { display: flex; justify-content: space-between; margin-top: 24px; gap: 12px; }
.btn {
    display: inline-flex;
    align-items: center;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    text-decoration: none;
}
.btn-back { background: #e8e4df; color: var(--text); }
.btn-back:hover { background: #ddd8d2; }
.btn-next, .btn-submit {
    background: var(--primary);
    color: #fff;
    margin-left: auto;
}
.btn-next:hover, .btn-submit:hover { background: var(--primary-dark); }
.btn-submit { font-size: 1.05rem; padding: 14px 32px; }
.btn-submit:disabled { opacity: 0.6; cursor: not-allowed; }

/* Summary */
.summary {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 20px;
}
.summary-table { width: 100%; border-collapse: collapse; }
.summary-table td { padding: 8px 4px; vertical-align: top; }
.summary-table .label { font-weight: 500; color: var(--text-light); width: 140px; }
.summary-table hr { border: none; border-top: 1px solid var(--border); }

/* Done message */
.done-message { text-align: center; padding: 40px 0; }
.done-icon { font-size: 3rem; margin-bottom: 16px; }
.done-message h2 { margin-bottom: 12px; }
.done-message p { color: var(--text-light); margin-bottom: 8px; }
.done-message .btn { margin-top: 20px; background: var(--primary); color: #fff; }

/* Footer */
footer {
    background: #2c2c2c;
    color: #aaa;
    text-align: center;
    padding: 16px 0;
    font-size: 0.85rem;
    margin-top: auto;
}
footer a { color: #ccc; }

/* Responsive */
@media (max-width: 600px) {
    .card-grid { grid-template-columns: 1fr; }
    .card-grid-2 { grid-template-columns: 1fr; }
    .form-grid { grid-template-columns: 1fr; }
    .form-group.full-width { grid-column: 1; }
    .progress-bar .step { font-size: 0.7rem; padding: 8px 2px; }
    header h1 { font-size: 1.3rem; }
    .summary-table .label { width: auto; display: block; }
    .summary-table td { display: block; padding: 4px 0; }
    .summary-table tr { display: block; margin-bottom: 6px; }
}