/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 28px; border-radius: var(--radius-md); font-weight: 700; font-size: 0.95rem; transition: all .2s; cursor: pointer; white-space: nowrap; }
.btn--primary { background: var(--color-primary); color: #fff; }
.btn--primary:hover { background: var(--color-primary-dark); transform: translateY(-1px); box-shadow: 0 4px 14px rgba(37,99,235,.4); }
.btn--outline { background: transparent; border: 2px solid var(--color-primary); color: var(--color-primary); }
.btn--outline:hover { background: var(--color-primary-light); }
.btn--sm { padding: 8px 18px; font-size: 0.85rem; }
.btn--lg { padding: 16px 36px; font-size: 1.05rem; }

/* Cards */
.card { background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 28px 24px; transition: box-shadow .2s,transform .2s; }
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.card__icon { font-size: 2rem; margin-bottom: 12px; }
.card__title { font-weight: 700; font-size: 1rem; margin-bottom: 6px; }
.card__text { font-size: 0.88rem; color: var(--color-text-muted); line-height: 1.6; }

/* Category cards */
.cat-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
@media(max-width:900px){.cat-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:600px){.cat-grid{grid-template-columns:repeat(2,1fr)}}
.cat-card { display: flex; flex-direction: column; align-items: center; background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 28px 20px; text-align: center; transition: all .2s; }
.cat-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.cat-card__icon { font-size: 2.5rem; margin-bottom: 10px; }
.cat-card__name { font-weight: 700; font-size: 0.95rem; margin-bottom: 4px; }
.cat-card__price { font-size: 0.8rem; color: var(--color-primary); font-weight: 600; }

/* Price cards */
.price-card { background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 20px; }
.price-card__model { font-weight: 700; font-size: 0.95rem; margin-bottom: 4px; }
.price-card__spec { font-size: 0.8rem; color: var(--color-text-muted); margin-bottom: 10px; }
.price-card__price { font-size: 1.15rem; font-weight: 800; color: var(--color-primary); margin-bottom: 4px; }
.price-card__condition { font-size: 0.78rem; color: var(--color-text-muted); }

/* Badge */
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 6px 14px; border-radius: 20px; font-size: 0.82rem; font-weight: 600; }
.badge--success { background: var(--color-success-light); color: var(--color-success); }
.badge--primary { background: var(--color-primary-light); color: var(--color-primary); }

/* Form */
.form-input { width: 100%; padding: 13px 18px; border: 1.5px solid var(--color-border); border-radius: var(--radius-md); font-size: 0.95rem; background: #fff; transition: border-color .2s,box-shadow .2s; outline: none; }
.form-input:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.form-note { font-size: 0.78rem; color: var(--color-text-muted); margin-top: 10px; }
.form-note a { color: var(--color-primary); }

/* FAQ */
.faq { display: flex; flex-direction: column; gap: 4px; }
.faq-item__question { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius-md); font-weight: 600; font-size: 0.95rem; cursor: pointer; text-align: left; transition: background .15s; }
.faq-item__question:hover { background: var(--color-primary-light); }
.faq-item.active .faq-item__question { background: var(--color-primary-light); color: var(--color-primary); border-color: var(--color-primary); border-bottom-left-radius: 0; border-bottom-right-radius: 0; }
.faq-item__arrow { font-size: 1rem; transition: transform .3s; flex-shrink: 0; margin-left: 12px; }
.faq-item.active .faq-item__arrow { transform: rotate(180deg); }
.faq-item__answer { display: none; padding: 16px 20px; background: #fff; border: 1px solid var(--color-primary); border-top: none; border-radius: 0 0 var(--radius-md) var(--radius-md); font-size: 0.9rem; color: var(--color-text-muted); line-height: 1.7; }
.faq-item.active .faq-item__answer { display: block; }

/* Quiz */
.quiz { background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius-xl); padding: 40px; max-width: 680px; margin: 0 auto; box-shadow: var(--shadow-md); }
@media(max-width:600px){.quiz{padding:24px 20px}}
.quiz__topbar { display: flex; align-items: center; gap: 14px; margin-bottom: 8px; }
.quiz__topbar-arrow { width: 38px; height: 38px; border: 1px solid var(--color-border); border-radius: 999px; background: #fff; color: var(--color-primary); display: inline-flex; align-items: center; justify-content: center; font-size: 1rem; font-weight: 700; cursor: pointer; transition: border-color .2s, color .2s, background .2s, opacity .2s; flex-shrink: 0; }
.quiz__topbar-arrow:hover { border-color: var(--color-primary); color: var(--color-primary); background: var(--color-primary-light); }
.quiz__topbar-arrow.is-disabled { opacity: .45; cursor: default; pointer-events: none; border-color: var(--color-border); background: #fff; color: var(--color-text-muted); }
.quiz__topbar-arrow.is-hidden { visibility: hidden; pointer-events: none; }
.quiz__progress-bar { height: 6px; background: var(--color-border); border-radius: 3px; margin-bottom: 0; flex: 1 1 auto; }
.quiz__progress-fill { height: 100%; background: var(--color-primary); border-radius: 3px; transition: width .4s; }
.quiz__counter { font-size: 0.8rem; color: var(--color-text-muted); margin-bottom: 24px; }
.quiz__step { display: none; }
.quiz__step.active { display: block; }
.quiz__question { font-size: 1.1rem; font-weight: 700; margin-bottom: 20px; }
.quiz__hint { margin: -8px 0 16px; }
.quiz__options { display: flex; flex-direction: column; gap: 10px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 12px; }
.quiz__options--grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: stretch; }
.quiz__options--scroll { max-height: 308px; overflow-y: auto; padding-right: 6px; }
.quiz__options--scroll::-webkit-scrollbar { width: 8px; }
.quiz__options--scroll::-webkit-scrollbar-track { background: var(--color-border); border-radius: 999px; }
.quiz__options--scroll::-webkit-scrollbar-thumb { background: var(--color-primary); border-radius: 999px; }
.quiz__options--scroll::-webkit-scrollbar-thumb:hover { background: var(--color-primary-hover, var(--color-primary)); }
.quiz__option { display: flex; align-items: center; gap: 12px; padding: 14px 18px; border: 1.5px solid var(--color-border); border-radius: var(--radius-md); cursor: pointer; font-weight: 500; font-size: 0.95rem; transition: all .15s; }
.quiz__option:hover { border-color: var(--color-primary); background: var(--color-primary-light); color: var(--color-primary); }
.quiz__option.selected { border-color: var(--color-primary); background: var(--color-primary-light); color: var(--color-primary); }
.quiz__option-icon { font-size: 1.3rem; flex-shrink: 0; }
.quiz__option--card { align-items: flex-start; }
.quiz__option .card-text { display: flex; flex-direction: column; }
.quiz__option .card-title { font-weight: 700; font-size: 0.97rem; color: inherit; }
.quiz__option .card-desc { font-size: 0.82rem; color: #888; margin-top: 2px; }
.quiz__option.selected .card-desc,
.quiz__option:hover .card-desc { color: var(--color-primary); }
@media (max-width: 640px) { .quiz__options--grid { grid-template-columns: 1fr; } }