/* ============================================
   BORRE.STORE — Responsive Breakpoints
   ============================================ */

/* ── Hamburger Button (hidden on desktop) ── */
.nav__hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 60;
}

.nav__hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-on-surface);
  margin: 5px 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Hamburger → X animation */
.nav__hamburger.is-open .nav__hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__hamburger.is-open .nav__hamburger-line:nth-child(2) {
  opacity: 0;
}

.nav__hamburger.is-open .nav__hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ── Tablet & smaller desktops (≤1200px) ── */
@media (max-width: 1200px) {
  :root {
    --content-padding: 2rem;
  }

  body {
    width: 100%;
    max-width: 1440px;
  }

  .hero__title {
    font-size: 4rem;
  }

  .hero__watermark {
    font-size: 14rem;
  }

  .problem__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .problem__cards {
    grid-template-columns: 1fr 1fr;
  }

  .fit-session__grid {
    gap: 3rem;
  }

  .process__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }

  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ── Tablet portrait & iPad Landscape (≤1024px) ── */
@media (max-width: 1024px) {

  /* ── Mobile Nav ── */
  .nav__hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .nav__inner {
    padding: 0.5rem var(--content-padding);
  }

  .nav.is-scrolled {
    max-width: 100%;
    margin: 0;
    border-radius: 0;
    padding: 0;
    background: rgba(12, 12, 11, 0.95);
    border-left: none;
    border-right: none;
    border-top: none;
    border-bottom: 1px solid rgba(168, 232, 255, 0.15);
  }

  .nav.is-scrolled .nav__inner {
    padding: 0.5rem var(--content-padding);
    width: 100%;
    gap: 0;
    justify-content: space-between;
  }

  .nav__logo-img {
    height: 48px;
  }

  .nav.is-scrolled .nav__logo-img {
    height: 32px;
  }

  .nav__links {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100dvh;
    background: rgba(12, 12, 11, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: flex-start;
    padding: 6rem 2rem 2rem;
    gap: 0;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 55;
    border-left: 1px solid var(--color-outline-variant);
  }

  .nav__links.is-open {
    transform: translateX(0);
  }

  .nav__link {
    font-size: 1rem;
    padding: 1rem 0;
    width: 100%;
    border-bottom: 1px solid rgba(60, 73, 78, 0.15);
  }

  .nav__links .btn {
    margin-top: 1.5rem;
    width: 100%;
    text-align: center;
    justify-content: center;
  }

  /* Overlay behind drawer */
  .nav__overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 52;
  }

  .nav__overlay.is-visible {
    display: block;
  }

  /* ── Hero ── */
  .hero {
    padding: 7rem var(--content-padding) 4rem;
  }

  .hero__title {
    font-size: 2.75rem;
    margin-bottom: 1.5rem;
  }

  .hero__subtitle {
    font-size: 1rem;
    margin-bottom: 2rem;
  }

  .hero__watermark {
    font-size: 8rem;
    top: 3rem;
  }

  .hero__cube {
    display: none;
  }

  .hero__actions {
    flex-direction: column;
    gap: 1rem;
  }

  .hero__actions .btn {
    width: 100%;
    justify-content: center;
  }

  /* ── Problem ── */
  .problem__cards {
    grid-template-columns: 1fr;
  }

  .problem__card--shifted {
    margin-top: 0;
  }

  /* ── Funnel ── */
  .funnel__stages {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }

  .funnel__stage {
    width: 100%;
    max-width: 20rem;
  }

  .funnel__arrow {
    width: 2px;
    height: 2.5rem;
    margin-top: 0;
    background: none;
  }

  .funnel__arrow-label {
    top: 50%;
    left: 2.5rem;
    transform: translateY(-50%);
  }

  /* ── Fit Session ── */
  .fit-session__grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  /* ── RAG ── */
  .rag__diagram {
    flex-direction: column;
    height: auto;
    gap: 1.5rem;
  }

  .rag__arrow {
    width: 2px;
    height: 2rem;
  }

  .rag__arrow-dot {
    right: auto;
    bottom: -0.25rem;
    top: auto;
    left: -0.25rem;
  }

  .rag__column {
    flex-direction: row;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
  }

  /* ── Services ── */
  .services__grid {
    grid-template-columns: 1fr;
  }

  /* ── Process ── */
  .process__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* ── Footer ── */
  .footer__inner {
    flex-direction: column;
    gap: 3rem;
  }

  /* ── CTA ── */
  .cta {
    padding: 6rem var(--content-padding);
  }

  .cta__title {
    font-size: 2.75rem;
  }

  .btn--xl {
    padding: 1.5rem 2.5rem;
    font-size: 1rem;
  }

  /* ── Contrast Frame ── */
  .contrast {
    padding: 0;
    height: 150vh;
  }

  .contrast__portal {
    width: calc(92% + (8% * var(--portal-progress, 0)));
    padding: 4rem 1.5rem;
  }

  .contrast__grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .contrast__divider {
    width: 100%;
    height: 1px;
    align-self: auto;
    background: linear-gradient(
      to right,
      transparent,
      var(--color-outline-variant),
      transparent
    );
  }

  .contrast__header {
    margin-bottom: 3rem;
  }

  /* ── Social Proof ── */
  .social-proof__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
  }

  /* ── Inline CTA ── */
  .inline-cta {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
    padding: 3rem var(--content-padding);
  }

  /* ── Trust Badges ── */
  .hero__trust {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .hero__trust-logos {
    flex-wrap: wrap;
  }
}

/* ── Mobile & iPad Portrait (≤768px) ── */
@media (max-width: 768px) {
  :root {
    --content-padding: 1.25rem;
  }

  /* ── Nav ── */
  .nav__logo-img {
    height: 40px;
  }

  .nav__links {
    width: 100%;
  }

  /* ── Hero ── */
  .hero {
    padding: 6.5rem var(--content-padding) 3rem;
  }

  .hero__tag {
    font-size: 0.625rem;
    letter-spacing: 0.2em;
    margin-bottom: 1.25rem;
  }

  .hero__title {
    font-size: 2rem;
    line-height: 1.05;
    margin-bottom: 1.25rem;
  }

  .hero__subtitle {
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
  }

  .hero__watermark {
    display: none;
  }

  .hero__grid,
  .hero__scroll {
    display: none;
  }

  .hero__strike::after {
    height: 4px;
  }

  /* ── All sections ── */
  .problem,
  .funnel,
  .fit-session,
  .rag,
  .quiz,
  .services,
  .process,
  .faq,
  .cta {
    padding: 3.5rem var(--content-padding);
  }

  /* ── Logo Marquee ── */
  .marquee {
    padding: 3rem 0;
  }

  .marquee__label {
    margin-bottom: 2rem;
    font-size: 0.625rem;
  }

  .marquee__item {
    padding: 0 1.5rem;
    gap: 0.6rem;
  }

  .marquee__logo {
    width: 1.35rem;
    height: 1.35rem;
  }

  .marquee__name {
    font-size: 0.8rem;
  }

  /* ── Section titles ── */
  .problem__title,
  .funnel__title,
  .fit-session__title,
  .rag__title,
  .quiz__title,
  .services__title,
  .process__title,
  .faq__title {
    font-size: 1.75rem;
  }

  .problem__desc {
    font-size: 1rem;
  }

  /* ── Contrast Frame ── */
  .contrast {
    padding: 0;
    height: 120vh;
  }

  .contrast__portal {
    width: calc(95% + (5% * var(--portal-progress, 0)));
    padding: 3.5rem 1.5rem;
  }

  .contrast__col {
    padding: 1.5rem;
  }

  .contrast__list-item {
    font-size: 0.85rem;
  }

  /* ── Social Proof ── */
  .social-proof {
    padding: 3.5rem var(--content-padding);
  }

  .social-proof__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }

  /* ── Inline CTA ── */
  .inline-cta__text {
    font-size: 1.15rem;
  }

  /* ── Cards ── */
  .card {
    padding: 1.5rem;
  }

  .card__title {
    font-size: 0.7rem;
  }

  /* ── Funnel ── */
  .funnel__header {
    margin-bottom: 3rem;
  }

  .funnel__stage-number {
    width: 3rem;
    height: 3rem;
    font-size: 1rem;
    margin-bottom: 1rem;
  }

  .funnel__stage-title {
    font-size: 1.1rem;
  }

  /* ── Fit Session ── */
  .fit-session__title {
    font-size: 1.75rem;
  }

  .fit-session__desc {
    font-size: 1rem;
    margin-bottom: 2rem;
  }

  .fit-session__stats {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }

  .stat-box {
    padding: 1rem;
  }

  .stat-box__value {
    font-size: 1.5rem;
  }

  /* ── RAG ── */
  .rag__header {
    margin-bottom: 3rem;
  }

  .rag__core {
    width: 12rem;
    height: 12rem;
  }

  .rag__core-title {
    font-size: 1.25rem;
  }

  .diagram-box {
    width: auto;
    min-width: 4.5rem;
    padding: 0.75rem;
    font-size: 0.55rem;
  }

  /* ── Quiz ── */
  .quiz__card {
    padding: 1.5rem;
  }

  .quiz__score {
    position: static;
    border: none;
    text-align: left;
    padding: 0 0 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
  }

  .quiz__score-label {
    margin-bottom: 0;
  }

  .quiz__score-value {
    font-size: 2rem;
  }

  .quiz__title {
    font-size: 1.5rem;
    margin-bottom: 2rem;
  }

  .quiz__options {
    flex-direction: column;
  }

  .quiz__form {
    gap: 2rem;
  }

  /* ── Service Cells ── */
  .service-cell {
    padding: 1.75rem;
  }

  .service-cell__title {
    font-size: 1.25rem;
  }

  /* ── Process ── */
  .process__grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .process__step {
    flex-direction: row;
    align-items: center;
    gap: 1rem;
  }

  .process-step__number {
    font-size: 1.5rem;
    min-width: 2.5rem;
  }

  .process-step__title {
    font-size: 0.7rem;
  }

  /* ── FAQ ── */
  .faq-item__title {
    font-size: 0.95rem;
  }

  .faq-item__answer p {
    font-size: 0.85rem;
  }

  .terminal-body {
    padding: 1.25rem;
  }

  /* ── CTA ── */
  .cta {
    padding: 4rem var(--content-padding);
  }

  .cta__title {
    font-size: 2rem;
    margin-bottom: 2rem;
  }

  .btn--xl {
    padding: 1.25rem 1.5rem;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    width: 100%;
  }

  .cta__note {
    font-size: 0.625rem;
    letter-spacing: 0.2em;
    margin-top: 1.5rem;
  }

  /* ── Footer ── */
  .footer {
    padding: 3rem var(--content-padding);
  }

  .footer__logo-img {
    height: 24px;
  }

  .footer__columns {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .footer__copyright {
    font-size: 0.625rem;
  }

  /* ── Scroll Animations Mobile ── */
  .cascade-text__layer {
    font-size: 28vw;
    opacity: 0.03;
  }
  
  .float-cloud {
    font-size: 1.5rem;
  }
}

/* ── Very small screens (≤380px) ── */
@media (max-width: 380px) {
  .hero__title {
    font-size: 1.75rem;
  }

  .fit-session__stats {
    grid-template-columns: 1fr;
  }

  .rag__column {
    gap: 0.5rem;
  }

  .diagram-box {
    min-width: 3.5rem;
    font-size: 0.5rem;
    padding: 0.5rem;
  }

  .rag__core {
    width: 10rem;
    height: 10rem;
  }

  .footer__columns {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}