/* Local review: Alexander Shnur, compact mobile flow and alternating surfaces. */
:root { --section-dark: #151715; --on-dark: #f2f1ec; --on-dark-muted: #c3c8bd; }
html { scroll-padding-top: 100px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.header-inner { height: 100px; }
.shnur-logo { display: block; flex: 0 0 auto; width: 250px; line-height: 0; }
.shnur-logo img { width: 100%; height: auto; display: block; }
.nav { gap: 24px; }
.header-cta { white-space: nowrap; }
.hero { min-height: 640px; }
.hero-content { padding-top: clamp(140px, 18vh, 180px); padding-bottom: 38px; }
.hero h1 { font-size: clamp(46px, 4.8vw, 72px); margin-bottom: 0; }
.hero .hero-description { font-size: 20px; line-height: 1.5; margin-top: 16px; }
.hero-console { width: 100%; max-width: 480px; margin-inline: auto; }
.hero-controls { flex-direction: column; gap: 8px; }
.hero-control-group { width: 100%; }
.hero-control { flex: 1; }
.hero-console-top.sr-only { margin: 0; }
.scenarios, .about-person { background: var(--bg); }
.budget-section, #approach, .footer { background: var(--section-dark); color: var(--on-dark); }
.budget-section .section-head { max-width: 740px; margin-bottom: 34px; }
.budget-section h2 { font-size: clamp(34px, 4.1vw, 58px); }
.budget-section .section-lead { color: var(--on-dark-muted); font-size: 16px; margin-top: 18px; }
.budget-grid { grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 48px; background: transparent; margin-top: 0; align-items: start; }
.budget-form { padding: 0; }
.budget-form fieldset { border: 0; padding: 0; margin: 0 0 22px; min-width: 0; }
.budget-form fieldset:last-child { margin: 0; }
.budget-form legend { font-size: 14px; font-weight: 500; margin-bottom: 10px; }
.budget-form .segmented { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; }
.budget-form .segmented label > span { min-height: 54px; margin: 0; padding: 10px 8px; border: 1px solid #72796b; color: var(--on-dark); font-size: 13px; line-height: 1.4; }
.budget-form .segmented input:checked + span { background: var(--lime); color: var(--ink); border-color: var(--lime); }
.budget-form .segmented input:focus-visible + span { outline-color: var(--lime); }
.budget-form .area-header { margin-top: -8px; }
.area-header > label { font-size: 13px; color: var(--on-dark-muted); }
.area-input { width: 126px; border-color: #8d9583; }
.area-input input { color: var(--on-dark); font-size: 28px; }
.area-input > span, .range-labels { color: var(--on-dark-muted); font-size: 12px; }
.budget-form input[type=range] { height: 6px; margin: 22px 0 14px; accent-color: var(--lime); }
.system-choices { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; }
.system-choices label { min-height: 50px; padding: 12px; border-color: #72796b; font-size: 14px; line-height: 1.4; }
.system-choices label:has(:checked) { background: #2b3026; border-color: var(--lime); color: var(--on-dark); }
.system-choices input { width: 17px; height: 17px; flex-shrink: 0; accent-color: var(--lime); }
.budget-result { background: #232620; padding: 28px; border: 1px solid #474d40; }
.result-top { padding-bottom: 18px; font-size: 14px; }
.budget-range { display: flex; flex-wrap: wrap; gap: 0 8px; font-size: clamp(28px, 2.7vw, 40px); margin: 22px 0 12px; }
.budget-range > span { white-space: nowrap; }
.budget-summary { font-size: 13px; line-height: 1.6; margin-bottom: 16px; }
.budget-lines { margin-bottom: 22px; }
.budget-lines li { padding: 9px 0; font-size: 13px; }
.result-note, .method-details { color: var(--on-dark-muted); font-size: 12px; line-height: 1.65; }
.method-details { padding-top: 12px; margin-top: 16px; }
.method-details summary { padding: 4px 0; }
.budget-result .btn { min-height: 50px; }
.budget-empty { padding: 25px 0; }
.budget-section :focus-visible, #approach :focus-visible, .footer :focus-visible { outline-color: var(--lime); }
.budget-section .input-error { color: #ffb4a9; }
.panel-promo { margin-top: 32px; padding: 22px 0 0; border-top: 1px solid #484f42; border-bottom: 0; gap: 24px; }
.panel-promo h3 { font-size: 22px; }
.panel-promo p { color: var(--on-dark-muted); font-size: 14px; margin-top: 7px; }
.panel-promo .text-link { color: var(--lime); white-space: nowrap; }
.about-grid { display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: 90px; }
.about-copy h2 { font-size: clamp(38px, 4.3vw, 64px); }
.about-lead { font-size: 24px; line-height: 1.4; margin: 26px 0 22px; letter-spacing: -.02em; }
.about-copy > p:not(.about-lead) { color: #51584b; font-size: 16px; line-height: 1.8; max-width: 58ch; margin-top: 16px; }
.about-copy .text-link { margin-top: 28px; font-size: 14px; padding: 10px 0; }
.about-photo { margin: 0; }
.about-photo img { width: 100%; height: auto; display: block; aspect-ratio: 3/4; object-fit: cover; }
#faq .faq-grid { gap: 70px; }
#faq h2 { font-size: clamp(38px, 4.3vw, 64px); }
#faq { background: var(--bg); color: var(--ink); }
.faq details { border-color: var(--line); padding: 22px 0; }
.faq details:first-child { border-color: var(--line); }
.faq summary { color: var(--ink); font-size: 16px; line-height: 1.5; gap: 20px; }
.faq summary::after { color: var(--ink); }
.faq details p { color: #51584b; font-size: 14px; line-height: 1.8; }
#approach h2 em { color: var(--lime); }
#approach .section-index, #approach .intro-copy > p, #approach .intro-note p { color: var(--on-dark-muted); }
#approach .text-link { color: var(--lime); border-color: var(--lime); }
#approach .intro-note { border-color: #474d40; }
.intro { padding-block: 100px; }
.intro .section-index { font-size: 12px; }
.intro-copy > p { font-size: 16px; line-height: 1.8; }
.intro-note p { font-size: 14px; line-height: 1.75; }
.intro .text-link { font-size: 14px; }
.footer { padding: 42px 0 24px; }
.footer-inner p { font-size: 14px; line-height: 1.75; }
.footer-meta { font-size: 12px; line-height: 1.6; }
.config-tabs { top: 100px; }
.mobile-trigger, .mobile-step, .scenario-details-toggle { display: none; }
.scenario-details { display: contents; }
@media (max-width: 1100px) {
  .nav { gap: 18px; }
  .shnur-logo { width: 220px; }
  .budget-grid { gap: 28px; grid-template-columns: 1.2fr 1fr; }
  .about-grid { gap: 50px; }
}
@media (max-width: 900px) {
  html { scroll-padding-top: 80px; }
  .header-inner { height: 80px; }
  .shnur-logo { width: 216px; }
  .nav { top: 79px; }
  .hero-content { padding-top: 126px; }
  .budget-grid { grid-template-columns: 1fr; gap: 28px; }
  .budget-result { padding: 26px; }
  .budget-range { font-size: 38px; }
  .about-grid { grid-template-columns: 1.1fr .9fr; gap: 35px; }
  .about-lead { font-size: 21px; }
  .about-copy > p:not(.about-lead) { font-size: 15px; }
  #faq .faq-grid { grid-template-columns: 1fr; gap: 28px; }
  .config-tabs { top: 80px; }
}
@media (max-width: 600px) {
  .section { padding: 58px 0; }
  .shnur-logo { width: 210px; }
  .hero { min-height: 640px; }
  .hero-content { padding: 120px 0 24px; }
  .hero h1 { font-size: clamp(34px, 9.6vw, 51px); line-height: 1.09; }
  .hero .hero-description { font-size: 17px; margin-top: 14px; }
  .hero::after { background: linear-gradient(180deg,#0c0e0ccc 0%,#0c0e0c70 39%,#0c0e0c00 60%,#0c0e0ce8 87%); }
  .hero-console { padding-top: 20px; }
  .hero-control { min-height: 48px; font-size: 13px; }
  .scenarios .section-lead { font-size: 15px; }
  .sc-tab { min-width: 151px; }
  .sc-tab b { font-size: 13px; }
  .sc-tab small { font-size: 11px; }
  .sc-desc, .trigger p, .step .st-txt { font-size: 14px; }
  .sc-note { font-size: 13px; line-height: 1.7; }
  .budget-section .section-head { margin-bottom: 26px; }
  .budget-section h2 { font-size: 36px; }
  .budget-section .section-lead { font-size: 14px; line-height: 1.65; margin-top: 16px; }
  .budget-form .segmented label > span { font-size: 13px; padding: 8px 5px; min-height: 56px; }
  .budget-form fieldset { margin-bottom: 22px; }
  .system-choices label { font-size: 13px; padding: 10px 8px; gap: 8px; min-height: 50px; }
  .budget-result { padding: 22px; }
  .budget-range { font-size: 34px; gap: 0 6px; }
  .budget-lines li { gap: 12px; }
  .panel-promo { display: block; margin-top: 26px; }
  .panel-promo h3 { font-size: 23px; }
  .panel-promo .text-link { display: inline-flex; margin: 14px 0 0; min-height: 44px; font-size: 14px; }
  .about-grid { grid-template-columns: 1fr; gap: 30px; }
  .about-copy h2 { font-size: 42px; }
  .about-lead { font-size: 22px; margin-top: 22px; }
  .about-copy > p:not(.about-lead) { font-size: 15px; line-height: 1.75; }
  .about-copy .text-link { margin-top: 18px; }
  .about-photo { width: 100%; }
  #faq .faq-grid { gap: 24px; }
  #faq h2 { font-size: 40px; }
  .faq details { padding: 20px 0; }
  .faq summary { font-size: 15px; }
  .faq details p { font-size: 14px; }
  .intro { padding-block: 58px; }
  .intro h2 { font-size: 36px; }
  .intro-copy > p { font-size: 15px; }
  .intro .section-index { padding-top: 0; }
  .footer-inner { flex-direction: column; gap: 22px; }
  .footer-inner p { max-width: none; font-size: 14px; }
  .footer-inner > a:last-child { font-size: 14px; min-height: 44px; display: flex; align-items: center; }
  .footer .shnur-logo { width: 240px; }
  .footer-meta { font-size: 11px; }
}
@media (max-width: 850px) {
  .scenarios .demo-caption { display: none; }
  .sc-tabs { margin-bottom: 10px; }
  .sc-grid { gap: 14px; }
  .stage-wrap { position: static; }
  .stage-wrap .toasts { display: none; }
  .mobile-trigger { display: grid; grid-template-columns: 48px 1fr; gap: 10px; padding: 0 0 12px; font-size: 13px; line-height: 1.5; }
  .mobile-trigger > span { font-weight: 600; }
  .mobile-trigger p { margin: 0; color: #51584b; }
  .mobile-step { display: block; min-height: 112px; padding: 12px 14px; background: var(--section-dark); color: var(--on-dark); }
  .mobile-step-top { display: flex; align-items: center; gap: 8px; font-size: 12px; line-height: 1.5; color: var(--lime); }
  .mobile-step-top .ic { width: 17px; height: 17px; }
  .mobile-step p { font-size: 14px; line-height: 1.5; margin: 6px 0 0; }
  .hud-status { grid-template-columns: 1fr 1fr; margin-top: 0; }
  .hud-status .chip { font-size: 11px; min-height: 32px; padding: 6px 3px; }
  .hud-day { font-size: 11px; }
  .sc-panel { display: flex; gap: 12px; }
  .sc-controls { order: 0; padding-top: 0; border-top: 0; }
  .sc-controls .btn, .sc-controls .switch { min-height: 44px; font-size: 13px; }
  .scenario-details-toggle { order: 1; display: flex; justify-content: space-between; align-items: center; gap: 16px; width: 100%; min-height: 44px; padding: 10px 0; border: 0; border-block: 1px solid var(--line); background: transparent; font-size: 14px; text-align: left; cursor: pointer; }
  .scenario-details-toggle span { font-size: 20px; }
  .scenario-details { order: 2; display: none; }
  .scenario-details.is-expanded { display: grid; gap: 16px; }
  .scenario-details > * { grid-column: auto; grid-row: auto; }
  .scenario-details .trigger-label { font-size: 11px; }
  .sc-cta { order: 3; min-height: 44px; align-items: center; }
}
@media (max-width: 360px) {
  .shnur-logo { width: 196px; }
  .budget-form .segmented { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .budget-form .segmented label:last-child { grid-column: 1 / -1; }
  .budget-form .segmented label > span { font-size: 13px; padding-inline: 5px; min-height: 48px; }
  .system-choices { grid-template-columns: 1fr; }
  .budget-result { padding: 18px; }
  .budget-range { font-size: 31px; }
}