/* ═══════════════════════════════════════════════════════════
   BREAKING THE SCROLL — Production Responsive System
   Mobile: 320–767px | Tablet: 768–1024px | Desktop: 1025px+
   ═══════════════════════════════════════════════════════════ */

:root {
  --rs-gutter: clamp(16px, 4vw, 24px);
  --rs-section-pad-mobile: clamp(72px, 14vw, 96px);
  --rs-section-pad-tablet: clamp(96px, 12vw, 120px);
  --rs-section-pad-desktop: clamp(120px, 14vw, 160px);
  --rs-touch: 48px;
}

/* ── Global safety ── */
html {
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
}

body {
  overflow-x: hidden;
  max-width: 100vw;
}

main {
  overflow-x: hidden;
}

/* Clip decorative layers — no horizontal bleed */
.hero,
section.hero,
.hero-fx,
.hero-particles,
.hero-bg,
.hub-glow {
  overflow: hidden !important;
}

.book-glow,
.hero-glow-orb,
.book-glow-outer,
.light-trail,
.hero-streak,
.hero-particle,
.particle {
  pointer-events: none;
}

.book-3d {
  position: relative;
  max-width: 100%;
}

img,
video,
svg,
canvas {
  max-width: 100%;
  height: auto;
}

.wrap,
.hub-container,
.narrow {
  width: min(1160px, calc(100% - var(--rs-gutter) * 2)) !important;
  margin-inline: auto;
}

/* ── Hamburger (hidden desktop) ── */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: var(--rs-touch);
  height: var(--rs-touch);
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  background: rgba(24, 17, 15, 0.75);
  cursor: pointer;
  flex-shrink: 0;
  transition: border-color 200ms ease, background 200ms ease;
}

.nav-toggle:hover {
  border-color: rgba(255, 106, 0, 0.4);
  background: rgba(24, 17, 15, 0.92);
}

.nav-toggle__bar {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: #fff;
  transition: transform 280ms ease, opacity 200ms ease;
}

.is-nav-open .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.is-nav-open .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.is-nav-open .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 140;
  background: rgba(5, 7, 10, 0.72);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 280ms ease;
}

.is-nav-open .nav-backdrop {
  display: block;
  opacity: 1;
  pointer-events: auto;
}

body.nav-open {
  overflow: hidden;
}

/* ── Buttons: no wrap, touch-friendly ── */
.button,
.btn,
.nav-cta,
.email-form .button,
.email-form button {
  white-space: nowrap !important;
  min-height: var(--rs-touch) !important;
}

/* ═══════════════════════════════════════
   DESKTOP 1025px+
   ═══════════════════════════════════════ */
@media (min-width: 1025px) {
  main > section:not(.hero) {
    padding-block: var(--rs-section-pad-desktop) !important;
  }

  .nav-toggle,
  .nav-backdrop {
    display: none !important;
  }

  .nav-center,
  .nav-links {
    position: static !important;
    transform: none !important;
    visibility: visible !important;
    width: auto !important;
    height: auto !important;
    padding: 0 !important;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    flex-direction: row !important;
    overflow: visible !important;
  }

  .wrap,
  .hero-inner {
    width: min(1280px, calc(100% - 48px)) !important;
  }

  .hero-title {
    font-size: clamp(4.5rem, 7vw, 8.2rem) !important;
  }

  main > section:not(.hero) .section-head h2,
  main > section:not(.hero) h2 {
    font-size: clamp(2.4rem, 3.8vw, 3.6rem) !important;
  }
}

@media (min-width: 1440px) {
  .wrap,
  .hero-inner {
    width: min(1320px, calc(100% - 64px)) !important;
  }
}

/* ═══════════════════════════════════════
   TABLET 768–1024px
   ═══════════════════════════════════════ */
@media (min-width: 768px) and (max-width: 1024px) {
  main > section:not(.hero) {
    padding-block: var(--rs-section-pad-tablet) !important;
  }

  .hero-inner {
    grid-template-columns: 1fr 1fr !important;
    gap: 36px !important;
    align-items: center !important;
    text-align: left !important;
  }

  .hero-title {
    font-size: clamp(3.2rem, 6.5vw, 4.8rem) !important;
  }

  .hero-copy,
  .hero-subtitle {
    font-size: 1.05rem !important;
  }

  .book-3d,
  .hero-book-wrap,
  .buy-book {
    max-width: 340px !important;
    margin-inline: auto !important;
    justify-self: center !important;
  }

  .book-3d .book-shot,
  .book-shot {
    width: 100% !important;
    max-width: 300px !important;
  }

  .principles,
  .parts-grid,
  .tools-grid,
  .testimonial-grid,
  .timeline.compact,
  .days-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 18px !important;
  }

  .community-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
    gap: 14px !important;
  }

  .premise-section .premise-top-grid {
    grid-template-columns: 1fr 1fr !important;
    gap: 32px !important;
  }

  .premise-section .quote-panel {
    grid-column: 1 / -1;
  }

  .method-grid,
  .buy-layout,
  .newsletter-box,
  .onboarding-two-col {
    grid-template-columns: 1fr !important;
    gap: 36px !important;
  }

  .format-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
  }

  main > section:not(.hero) .section-head h2,
  main > section:not(.hero) h2 {
    font-size: clamp(2rem, 4vw, 2.8rem) !important;
  }

  .footer-grid {
    grid-template-columns: 1.2fr 1fr 1fr !important;
    gap: 32px !important;
  }

  .hub-title {
    font-size: clamp(2.4rem, 5vw, 3.2rem) !important;
  }

  .blueprint-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  }

  /* Tablet nav → hamburger */
  .nav-toggle {
    display: flex !important;
  }

  .nav-center,
  .nav-links {
    display: flex !important;
    flex-direction: column;
    align-items: stretch;
    position: fixed !important;
    top: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: min(320px, 88vw) !important;
    margin: 0 !important;
    padding: calc(72px + env(safe-area-inset-top, 0px)) 24px 32px !important;
    gap: 4px !important;
    z-index: 150 !important;
    background: rgba(11, 17, 24, 0.97) !important;
    border-left: 1px solid rgba(255, 255, 255, 0.08) !important;
    box-shadow: -16px 0 48px rgba(0, 0, 0, 0.5) !important;
    transform: translateX(100%) !important;
    visibility: hidden !important;
    transition: transform 320ms cubic-bezier(0.22, 1, 0.36, 1), visibility 320ms !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch;
  }

  .is-nav-open .nav-center,
  .is-nav-open .nav-links {
    transform: translateX(0) !important;
    visibility: visible !important;
  }

  .nav-center a,
  .nav-links a {
    display: flex !important;
    align-items: center;
    min-height: var(--rs-touch) !important;
    padding: 12px 16px !important;
    font-size: 1rem !important;
    border-radius: 12px !important;
    color: rgba(255, 255, 255, 0.85) !important;
  }

  .nav-center a:hover,
  .nav-links a:hover,
  .nav-center a.active,
  .nav-links a.active {
    background: rgba(255, 106, 0, 0.1) !important;
    color: #fff !important;
  }

  .nav-center a.active::after,
  .nav-link.active::after {
    display: none !important;
  }

  .nav-links .nav-cta {
    margin-top: 12px !important;
    justify-content: center !important;
    width: 100% !important;
  }

  .nav,
  .navbar-inner {
    grid-template-columns: 1fr auto auto !important;
    gap: 12px !important;
  }

  .nav-cta-wrap .nav-cta {
    padding-inline: 14px !important;
    font-size: 0.85rem !important;
  }
}

/* ═══════════════════════════════════════
   MOBILE ≤767px
   ═══════════════════════════════════════ */
@media (max-width: 767px) {
  main > section:not(.hero),
  section.band,
  section.buy,
  section.author,
  .cta {
    padding-block: var(--rs-section-pad-mobile) !important;
  }

  .site-header {
    padding: 12px var(--rs-gutter) 0 !important;
  }

  .site-header.scrolled {
    padding: 8px var(--rs-gutter) 0 !important;
  }

  .site-header .nav,
  .navbar-inner {
    width: 100% !important;
    padding: 10px 14px !important;
    grid-template-columns: 1fr auto auto !important;
    gap: 10px !important;
  }

  .brand-text-bottom,
  .logo-text {
    font-size: 0.82rem !important;
  }

  .brand-text-top {
    font-size: 0.92rem !important;
  }

  .brand-symbol {
    width: 36px !important;
    height: 36px !important;
  }

  .nav-toggle {
    display: flex !important;
  }

  .nav-center,
  .nav-links {
    display: flex !important;
    flex-direction: column;
    position: fixed !important;
    top: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: min(300px, 92vw) !important;
    padding: calc(68px + env(safe-area-inset-top, 0px)) 20px 28px !important;
    gap: 2px !important;
    z-index: 150 !important;
    background: rgba(11, 17, 24, 0.98) !important;
    border-left: 1px solid rgba(255, 255, 255, 0.08) !important;
    transform: translateX(100%) !important;
    visibility: hidden !important;
    transition: transform 320ms cubic-bezier(0.22, 1, 0.36, 1), visibility 320ms !important;
    overflow-y: auto !important;
  }

  .is-nav-open .nav-center,
  .is-nav-open .nav-links {
    transform: translateX(0) !important;
    visibility: visible !important;
  }

  .nav-center a,
  .nav-links a,
  .nav-link {
    min-height: var(--rs-touch) !important;
    padding: 14px 16px !important;
    font-size: 1.02rem !important;
    border-radius: 12px !important;
  }

  .nav-center a.active::after {
    display: none !important;
  }

  .nav-cta-wrap {
    display: none !important;
  }

  .navbar > .wrap > .navbar-inner > .nav-cta:not(.nav-links .nav-cta) {
    display: none !important;
  }

  .nav-links .nav-cta {
    display: inline-flex !important;
    width: 100% !important;
    margin-top: 16px !important;
    justify-content: center !important;
  }

  /* Hero: content first, book below */
  .hero-inner {
    display: flex !important;
    flex-direction: column !important;
    grid-template-columns: 1fr !important;
    gap: 32px !important;
    padding: 32px 0 64px !important;
    width: calc(100% - var(--rs-gutter) * 2) !important;
  }

  .hero-content-left,
  .hero-left {
    order: 1 !important;
    width: 100% !important;
  }

  .book-3d,
  #hero-book,
  .hero-book-wrap {
    order: 2 !important;
    width: 100% !important;
    max-width: min(280px, 78vw) !important;
    margin: 8px auto 0 !important;
    justify-self: center !important;
  }

  .book-3d .book-shot,
  .book-shot {
    width: 100% !important;
    max-width: 100% !important;
    transform: none !important;
    animation: none !important;
  }

  .book-3d img,
  .buy-book img {
    width: 100% !important;
    height: auto !important;
    object-fit: contain !important;
  }

  .book-seal {
    width: 80px !important;
    height: 80px !important;
    right: -8px !important;
    bottom: -12px !important;
  }

  .book-glow {
    width: 280px !important;
    height: 280px !important;
  }

  .hero {
    min-height: auto !important;
    padding-top: 64px !important;
  }

  .hero-title,
  .hero-headline,
  .hero h1 {
    font-size: clamp(2.6rem, 12vw, 3.8rem) !important;
    line-height: 0.95 !important;
    overflow-wrap: break-word;
    word-wrap: break-word;
  }

  .hero-badge {
    font-size: 0.62rem !important;
    padding: 6px 12px !important;
    max-width: 100%;
    flex-wrap: wrap;
  }

  .hero-copy,
  .hero-subtitle {
    font-size: 1rem !important;
    max-width: 100% !important;
  }

  .hero-actions,
  .hero-actions-row {
    flex-direction: column !important;
    width: 100% !important;
    max-width: 100% !important;
  }

  .hero-actions-row .button,
  .hero-btn-challenge,
  .hero-actions .button {
    width: 100% !important;
    flex: none !important;
    min-width: 0 !important;
    justify-content: center !important;
  }

  .feature-chips {
    gap: 8px !important;
  }

  .feature-chip {
    font-size: 0.78rem !important;
    padding: 8px 12px !important;
  }

  /* Typography */
  main > section:not(.hero) .section-head h2,
  main > section:not(.hero) h2,
  .hub-title {
    font-size: clamp(1.75rem, 7vw, 2.4rem) !important;
    line-height: 1.12 !important;
    overflow-wrap: break-word;
  }

  .lede,
  .section-desc,
  .hub-desc {
    font-size: 1rem !important;
    line-height: 1.65 !important;
  }

  /* Single-column cards */
  .principles,
  .parts-grid,
  .tools-grid,
  .testimonial-grid,
  .community-stats,
  .timeline.compact,
  .format-grid,
  .days-grid,
  .blueprint-grid,
  .options-grid,
  .form-grid,
  .onboarding-two-col {
    grid-template-columns: 1fr !important;
    gap: 14px !important;
  }

  .premise-section .premise-top-grid {
    grid-template-columns: 1fr !important;
    gap: 24px !important;
  }

  .method-grid,
  .buy-layout,
  .community-layout,
  .split,
  .newsletter-box {
    grid-template-columns: 1fr !important;
    gap: 28px !important;
  }

  .buy-book {
    max-width: 260px !important;
    margin-inline: auto !important;
  }

  .principle,
  .part,
  .tool-card,
  .testimonial,
  .challenge-card,
  .question-card {
    min-height: 0 !important;
  }

  /* Forms */
  .email-form {
    flex-direction: column !important;
    width: 100% !important;
    padding: 12px !important;
    gap: 10px !important;
  }

  .email-form input {
    width: 100% !important;
    min-height: var(--rs-touch) !important;
    padding: 12px 14px !important;
  }

  .email-form .button,
  .email-form button {
    width: 100% !important;
  }

  .form-grid,
  .form-group {
    width: 100% !important;
  }

  .form-input,
  .form-select {
    width: 100% !important;
    min-height: var(--rs-touch) !important;
  }

  /* CTA */
  .cta .wrap {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
    text-align: left !important;
  }

  .cta .button {
    width: 100% !important;
    justify-content: center !important;
  }

  /* Author */
  .author-box {
    grid-template-columns: 1fr !important;
    text-align: center !important;
    padding: 24px 20px !important;
  }

  .author-avatar {
    margin-inline: auto !important;
    width: 96px !important;
    height: 96px !important;
  }

  .author-social {
    justify-content: center !important;
    flex-wrap: wrap !important;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr !important;
    gap: 28px !important;
    text-align: center !important;
  }

  .footer-brand-row {
    justify-content: center !important;
  }

  .footer-brand p {
    margin-inline: auto !important;
  }

  .footer-social {
    justify-content: center !important;
  }

  .footer-bottom {
    flex-direction: column !important;
    gap: 8px !important;
    text-align: center !important;
    padding-bottom: env(safe-area-inset-bottom, 16px) !important;
  }

  /* Challenge */
  .question-card {
    padding: 20px 16px !important;
  }

  .question-card h2 {
    font-size: clamp(1.25rem, 5.5vw, 1.6rem) !important;
    overflow-wrap: break-word;
  }

  .option {
    min-height: var(--rs-touch) !important;
    padding: 14px 16px !important;
  }

  .progress-inner {
    flex-direction: column !important;
    gap: 8px !important;
    align-items: stretch !important;
  }

  .button.accent-lg,
  .btn-accent {
    width: 100% !important;
  }

  /* Certificate */
  .certificate-container,
  .certificate-card {
    width: 100% !important;
    max-width: 100% !important;
    overflow-x: hidden !important;
  }

  .certificate-card {
    padding: 24px 16px !important;
  }

  .cert-title {
    font-size: clamp(1.5rem, 6vw, 2rem) !important;
  }

  .cert-meta-row {
    flex-direction: column !important;
    gap: 16px !important;
    text-align: center !important;
  }

  /* Method loop */
  .loop-system {
    min-height: auto !important;
    padding: 24px 12px !important;
  }

  .method .step {
    grid-template-columns: 44px 1fr !important;
    gap: 12px !important;
    padding: 18px 16px !important;
  }

  .method .step span {
    width: 40px !important;
    height: 40px !important;
    font-size: 0.8rem !important;
  }

  /* Hide decorative overflow risks */
  .hero-orbit,
  .hero-streak {
    display: none !important;
  }

  .hero-fx {
    opacity: 0.6 !important;
  }

  /* Prevent long words breaking layout */
  h1, h2, h3, p, a, li, span, b, strong {
    overflow-wrap: break-word;
    word-break: break-word;
  }

  main .button,
  .btn {
    max-width: 100%;
  }
}

/* Small phones 320–374px */
@media (max-width: 374px) {
  .hero-title,
  .hero-headline {
    font-size: clamp(2.35rem, 11vw, 2.8rem) !important;
  }

  .nav-cta-wrap .nav-cta {
    padding-inline: 10px !important;
    font-size: 0.75rem !important;
  }

  .community-stats b {
    font-size: 2.4rem !important;
  }
}

/* Landscape phone */
@media (max-width: 767px) and (orientation: landscape) {
  .hero {
    padding-top: 56px !important;
  }

  .hero-inner {
    flex-direction: row !important;
    flex-wrap: wrap !important;
    align-items: center !important;
  }

  .hero-content-left {
    flex: 1 1 55% !important;
    order: 1 !important;
  }

  .book-3d {
    flex: 1 1 40% !important;
    max-width: 200px !important;
    order: 2 !important;
  }
}

@media (max-width: 767px) {
  .premise-section .principle {
    min-height: 0 !important;
    padding: 22px 20px !important;
  }
}

@media (max-width: 767px) {
  #inside .part {
    min-height: 0 !important;
    padding: 24px 20px 20px !important;
  }

  #inside .part h3 {
    font-size: clamp(1.45rem, 5.5vw, 1.85rem) !important;
  }
}

@media (min-width: 768px) and (max-width: 1024px) {
  #inside .parts-grid {
    gap: 16px !important;
  }

  #inside .part {
    min-height: 280px !important;
  }
}

/* ═══════════════════════════════════════════════════════════
   WARM CINEMATIC CARDS — site-wide (Hero consistency)
   Overrides all navy / cold blue card backgrounds
   ═══════════════════════════════════════════════════════════ */

.quote-panel,
.principle,
.part,
.part:nth-child(1),
.part:nth-child(2),
.part:nth-child(3),
.part:nth-child(4),
.challenge-card,
.tool-card,
.testimonial,
.newsletter-box,
.buy-panel,
.author-box,
.community-stats .quote-panel,
.format-grid article,
.message,
.card,
.question-card,
.insight-card,
.result-panel,
.certificate-card,
.ai-mirror-card,
.completed-panel,
.day-card,
.bp-item,
.diagram-frame,
.community-card,
.resource-card,
.option,
.preview-day-item,
.modal-content,
.certificate,
.panel,
.hub-card,
.method .steps {
  background: linear-gradient(180deg, #18110F 0%, #0A0A0B 100%) !important;
  border: 1px solid rgba(255, 122, 26, 0.18) !important;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45), 0 0 40px rgba(255, 106, 0, 0.08) !important;
}

.quote-panel:hover,
.principle:hover,
.part:hover,
.challenge-card:hover,
.tool-card:hover,
.testimonial:hover,
.newsletter-box:hover,
.buy-panel:hover,
.author-box:hover,
.community-stats .quote-panel:hover,
.format-grid article:hover,
.card:hover,
.question-card:hover,
.hub-card:hover,
.day-card:hover,
.message:hover {
  background: linear-gradient(180deg, #24150F 0%, #111111 100%) !important;
  border-color: rgba(255, 106, 0, 0.45) !important;
  box-shadow: 0 28px 72px rgba(0, 0, 0, 0.52), 0 0 56px rgba(255, 106, 0, 0.16) !important;
  transform: translateY(-8px) !important;
}

/* Inside book — warm chapter tones (no navy) */
#inside .part:nth-child(1) {
  background: linear-gradient(180deg, #18110F 0%, #0A0A0B 100%) !important;
}

#inside .part:nth-child(2) {
  background: linear-gradient(180deg, #1C1510 0%, #0B0A0A 100%) !important;
}

#inside .part:nth-child(3) {
  background: linear-gradient(180deg, #24150F 0%, #111111 100%) !important;
}

#inside .part:nth-child(4) {
  background: linear-gradient(180deg, #2A1A12 0%, #121010 100%) !important;
}

#inside .part:hover,
#inside .part:nth-child(1):hover,
#inside .part:nth-child(2):hover,
#inside .part:nth-child(3):hover,
#inside .part:nth-child(4):hover {
  background: linear-gradient(180deg, #24150F 0%, #111111 100%) !important;
}

/* Premise insight cards */
.premise-section .principle,
.premise-section .principle:nth-child(1),
.premise-section .principle:nth-child(2),
.premise-section .principle:nth-child(3),
.premise-section .principle:nth-child(4) {
  background: linear-gradient(180deg, #18110F 0%, #0A0A0B 100%) !important;
  border: 1px solid rgba(255, 122, 26, 0.18) !important;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45), 0 0 40px rgba(255, 106, 0, 0.08) !important;
}

.premise-section .principle:hover,
.premise-section .principle:nth-child(1):hover,
.premise-section .principle:nth-child(2):hover,
.premise-section .principle:nth-child(3):hover,
.premise-section .principle:nth-child(4):hover {
  background: linear-gradient(180deg, #24150F 0%, #111111 100%) !important;
}

/* Icon boxes */
.principle b,
.tool-icon,
main .principle b,
main .tool-icon {
  background: rgba(255, 106, 0, 0.10) !important;
  border: 1px solid rgba(255, 106, 0, 0.25) !important;
}

.principle b svg,
.tool-icon svg,
main .principle b svg,
main .tool-icon svg {
  stroke: #FF7A1A !important;
}

.premise-section .principle b svg {
  stroke: #FF7A1A !important;
}

/* ═══════════════════════════════════════════════════════════
   THEME TOGGLE
   ═══════════════════════════════════════════════════════════ */

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  margin-left: 8px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(24, 17, 15, 0.55);
  flex-shrink: 0;
}

.theme-toggle__btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 10px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: rgba(255, 255, 255, 0.65);
  font-family: var(--cin-sans, 'Inter', sans-serif);
  font-size: 0.72rem;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  white-space: nowrap;
  transition: background 220ms ease, color 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.theme-toggle__btn:hover {
  color: #fff;
  background: rgba(255, 106, 0, 0.1);
}

.theme-toggle__btn.is-active {
  background: rgba(255, 106, 0, 0.18);
  color: #FF8A3D;
  border-color: rgba(255, 106, 0, 0.28);
  box-shadow: 0 0 16px rgba(255, 106, 0, 0.12);
}

.theme-toggle__icon {
  font-size: 0.85rem;
  line-height: 1;
}

@media (min-width: 1025px) {
  .nav-center,
  .nav-links {
    flex-wrap: wrap;
    align-items: center;
  }

  .theme-toggle {
    margin-left: 12px;
  }

  .theme-toggle__label {
    display: inline;
  }
}

@media (max-width: 1024px) {
  .theme-toggle {
    width: 100%;
    margin: 20px 0 0;
    padding: 5px;
    justify-content: stretch;
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.1);
  }

  .theme-toggle__btn {
    flex: 1;
    justify-content: center;
    min-height: 44px;
    padding: 10px 8px;
    font-size: 0.78rem;
  }

  .theme-toggle__label {
    display: inline;
  }
}

@media (max-width: 380px) {
  .theme-toggle__label {
    display: none;
  }

  .theme-toggle__btn {
    padding: 10px;
  }
}

/* ═══════════════════════════════════════════════════════════
   MOBILE + TABLET ONLY (≤1024px) — Desktop 1025px+ unchanged above
   ═══════════════════════════════════════════════════════════ */

body.modal-open {
  overflow: hidden;
  overscroll-behavior: none;
}

@media (min-width: 1025px) {
  .nav-cta--drawer {
    display: none !important;
  }
}

@media (max-width: 1024px) {
  main:has(.hub-glow) {
    overflow-x: hidden;
  }

  .hub-glow {
    width: min(600px, 100vw) !important;
    max-width: 100vw !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
    contain: paint;
  }

  .site-header,
  .navbar {
    position: relative;
    z-index: 1100 !important;
  }

  .nav-toggle {
    position: relative;
    z-index: 1120 !important;
  }

  .nav-center,
  .nav-links {
    z-index: 1110 !important;
    padding-bottom: calc(28px + env(safe-area-inset-bottom, 0px)) !important;
  }

  .nav-backdrop {
    z-index: 1090 !important;
  }

  html.nav-open,
  body.nav-open {
    overflow: hidden;
    overscroll-behavior: none;
  }

  body.nav-open {
    touch-action: none;
  }

  .nav-center .nav-cta--drawer,
  .nav-links .nav-cta--drawer {
    display: inline-flex !important;
    width: 100% !important;
    margin-top: 12px !important;
    justify-content: center !important;
    min-height: var(--rs-touch) !important;
  }

  .theme-toggle {
    pointer-events: auto;
    touch-action: manipulation;
  }

  .theme-toggle__btn {
    min-height: var(--rs-touch);
    touch-action: manipulation;
  }

  .nav-center a.active,
  .nav-links a.active,
  .nav-link.active {
    font-weight: 700;
  }

  footer .wrap {
    grid-template-columns: 1fr !important;
    text-align: center !important;
    gap: 24px !important;
    padding-bottom: max(12px, env(safe-area-inset-bottom)) !important;
  }

  footer .wrap nav,
  footer nav {
    justify-content: center !important;
    flex-wrap: wrap !important;
    gap: 12px !important;
  }

  footer .footer-brand-row {
    justify-content: center !important;
  }
}

@media (max-width: 767px) {
  .hero-paragraph {
    font-size: clamp(0.95rem, 3.8vw, 1.05rem) !important;
    line-height: 1.65 !important;
    max-width: 100% !important;
  }

  .footer-bottom {
    padding-bottom: max(16px, env(safe-area-inset-bottom)) !important;
  }

  .modal-overlay,
  #cert-modal {
    padding: max(16px, env(safe-area-inset-top)) 16px max(16px, env(safe-area-inset-bottom)) !important;
    align-items: flex-start !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch;
  }

  .modal-overlay .certificate-card,
  .modal-overlay .modal-content,
  #cert-modal .certificate-card {
    width: 100% !important;
    max-width: 100% !important;
    margin: auto 0 !important;
  }

  .email-form {
    flex-direction: column !important;
    align-items: stretch !important;
  }

  .email-form input,
  .email-form button {
    width: 100% !important;
  }

  .diagram-frame,
  .loop-system {
    max-width: 100% !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch;
  }

  @media (prefers-reduced-motion: reduce) {
    .nav-center,
    .nav-links,
    .nav-backdrop,
    .nav-toggle__bar {
      transition-duration: 0.01ms !important;
    }
  }
}