/* MAP
 * §1 Filter Tabs & Search     L10-L42
 * §2 Interactive Estimator    L43-L94
 * §3 Forms & Validation       L95-L148
 * §4 FAQ, Breadcrumbs & Share L149-L198
 * §5 Footer & Mobile Bar      L199-L250
 */

/* §1 Filter Tabs & Search */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 24px; }
.filter-btn { min-height: 44px; padding: 8px 16px; border-radius: var(--radius-sm); border: 1.5px solid var(--border-strong); background: var(--surface); color: var(--text); font: inherit; font-size: 0.92rem; font-weight: 600; cursor: pointer; display: inline-flex; align-items: center; gap: 8px; }
.filter-btn:hover { background: var(--surface-2); border-color: var(--accent); }
.filter-btn[aria-pressed="true"] { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.filter-count { font-family: var(--font-mono); font-size: 0.78rem; padding: 2px 6px; border-radius: 999px; background: rgba(0, 0, 0, 0.08); }
.filter-btn[aria-pressed="true"] .filter-count { background: rgba(255, 255, 255, 0.22); color: #ffffff; }
.empty-state { display: none; padding: 32px; text-align: center; background: var(--surface); border: 1.5px dashed var(--border-strong); border-radius: var(--radius); margin-top: 16px; }
.empty-state.is-visible { display: block; }

/* §2 Interactive Estimator */
.estimator { background: var(--surface); border: 2px solid var(--border-strong); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
@media (max-width: 640px) { .estimator { padding: 20px; } }
.estimator__grid { display: grid; grid-template-columns: 1.25fr 0.75fr; gap: 28px; align-items: start; }
@media (max-width: 900px) { .estimator__grid { grid-template-columns: 1fr; } }
.est-options { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 20px; }
@media (max-width: 640px) { .est-options { grid-template-columns: 1fr; } }
.est-check { display: flex; align-items: flex-start; gap: 12px; padding: 14px; border: 1.5px solid var(--border); border-radius: var(--radius-sm); background: var(--bg); cursor: pointer; transition: border-color 0.15s ease, background-color 0.15s ease; }
.est-check:hover { border-color: var(--accent); background: var(--surface); }
.est-check input[type="checkbox"], .est-check input[type="radio"] { width: 20px; height: 20px; margin-top: 2px; accent-color: var(--accent); flex-shrink: 0; cursor: pointer; }
.est-check__title { font-weight: 700; font-size: 0.95rem; display: block; color: var(--text); }
.est-check__meta { font-size: 0.82rem; color: var(--text-2); font-family: var(--font-mono); }

.est-summary { background: var(--band); color: var(--on-band); border: 2px solid var(--band-border); border-radius: var(--radius); padding: 24px; position: sticky; top: 92px; }
.est-summary__price { font-family: var(--font-mono); font-size: 1.85rem; font-weight: 800; color: #5ab0ff; margin: 8px 0 4px; }
.est-summary__time { font-family: var(--font-mono); font-size: 0.9rem; color: #3dd68c; margin-bottom: 16px; }
.est-summary__list { list-style: none; padding: 0; margin: 0 0 20px; border-top: 1px solid var(--band-border); padding-top: 12px; font-size: 0.9rem; display: grid; gap: 8px; }
.est-summary__list li { display: flex; justify-content: space-between; gap: 8px; color: var(--on-band-2); }

/* §3 Forms & Validation */
.form-card { background: var(--surface); border: 2px solid var(--border-strong); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
@media (max-width: 640px) { .form-card { padding: 20px; } }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-group--full { grid-column: 1 / -1; }
.form-label { font-weight: 700; font-size: 0.92rem; color: var(--text); }
.form-label span { color: var(--danger); }
.form-hint { font-size: 0.82rem; color: var(--text-2); }
.form-control { min-height: 46px; padding: 10px 14px; border: 1.5px solid var(--border-strong); border-radius: var(--radius-sm); background: var(--bg); color: var(--text); font: inherit; font-size: 0.96rem; width: 100%; }
.form-control:focus { background: var(--surface); border-color: var(--accent); outline: 2px solid var(--accent); outline-offset: 1px; }
.form-control[aria-invalid="true"] { border-color: var(--danger); background: rgba(180, 35, 44, 0.04); }
textarea.form-control { min-height: 110px; resize: vertical; }
.field-error { font-size: 0.84rem; font-weight: 600; color: var(--danger); min-height: 20px; display: none; }
.field-error.is-visible { display: block; }
.form-status { display: none; padding: 16px; border-radius: var(--radius-sm); border: 1.5px solid var(--ok); background: var(--ok-soft); color: var(--text); font-weight: 600; margin-top: 16px; }
.form-status.is-visible { display: block; }

/* §4 FAQ, Breadcrumbs & Share */
.breadcrumb { padding: 14px 0; background: var(--surface); border-bottom: 1.5px solid var(--border); font-size: 0.88rem; }
.breadcrumb__list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; color: var(--text-2); }
.breadcrumb__list li + li::before { content: "/"; margin-right: 8px; color: var(--text-3); }
.breadcrumb__list a { color: var(--accent); text-decoration: none; font-weight: 600; }
.breadcrumb__list a:hover { text-decoration: underline; }

.faq-list { display: grid; gap: 12px; max-width: 860px; }
.faq-item { background: var(--surface); border: 1.5px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; }
.faq-item summary { min-height: 52px; padding: 14px 18px; font-weight: 700; font-size: 1.02rem; cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--text); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-family: var(--font-mono); font-size: 1.25rem; font-weight: 700; color: var(--accent); flex-shrink: 0; }
.faq-item[open] summary { border-bottom: 1px solid var(--border); background: var(--surface-2); }
.faq-item[open] summary::after { content: "−"; }
.faq-body { padding: 16px 18px; color: var(--text-2); }

.share-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding: 20px 0; border-top: 1.5px solid var(--border); margin-top: 32px; }
.share-bar__label { font-weight: 700; font-size: 0.92rem; color: var(--text-2); margin-right: 4px; }
.share-btn { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; padding: 8px 14px; border-radius: var(--radius-sm); border: 1.5px solid var(--border-strong); background: var(--surface); color: var(--text); font: inherit; font-size: 0.88rem; font-weight: 600; text-decoration: none; cursor: pointer; }
.share-btn:hover { background: var(--surface-2); border-color: var(--accent); color: var(--accent); }

/* §5 Footer & Mobile Bar */
.site-footer { background: var(--band); color: var(--on-band); padding: 56px 0 32px; border-top: 2px solid var(--band-border); }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 32px; margin-bottom: 40px; }
@media (max-width: 960px) { .footer__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .footer__grid { grid-template-columns: 1fr; } }
.footer__title { font-size: 1rem; font-weight: 700; color: var(--on-band); margin-bottom: 14px; font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.04em; }
.footer__links { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer__links a { color: var(--on-band-2); text-decoration: none; font-size: 0.94rem; display: inline-flex; align-items: center; gap: 6px; min-height: 32px; }
.footer__links a:hover { color: #ffffff; text-decoration: underline; }
.footer__bottom { padding-top: 24px; border-top: 1px solid var(--band-border); display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; font-size: 0.86rem; color: var(--on-band-2); }

.mobile-bar { display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 120; background: var(--band); border-top: 2px solid var(--band-border); padding: 8px 12px calc(8px + env(safe-area-inset-bottom)); grid-template-columns: 1fr 1fr; gap: 10px; }
.mobile-bar a { min-height: 46px; border-radius: var(--radius-sm); display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-weight: 700; font-size: 0.92rem; text-decoration: none; }
.mobile-bar__call { background: var(--band-surface); color: var(--on-band); border: 1.5px solid var(--band-border); }
.mobile-bar__wa { background: #1e7e48; color: #ffffff; border: 1.5px solid #3dd68c; }
@media (max-width: 768px) { .mobile-bar { display: grid; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; } }