/* ==========================================================================
   JLOA responsive enhancements
   Loaded after styles.css and legal.css.
   Breakpoints:
   - Desktop: 1025px+
   - Tablet: 721px–1024px
   - Mobile: 720px and below
   - Small mobile: 430px and below
   ========================================================================== */

:root {
  --header-height: 76px;
  --page-gutter: clamp(20px, 4vw, 48px);
}

html {
  min-width: 320px;
  overflow-x: clip;
  scroll-padding-top: calc(var(--header-height) + 18px);
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  min-width: 320px;
}

body.menu-open {
  overflow: hidden;
}

img {
  max-width: 100%;
  height: auto;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--gold-bright);
  outline-offset: 4px;
  border-radius: 6px;
}

.container {
  width: min(1180px, calc(100% - (var(--page-gutter) * 2)));
}

.section {
  padding-block: clamp(82px, 9vw, 130px);
}

/* Header and logo */
.site-header {
  isolation: isolate;
}

.site-header.is-scrolled,
body.menu-open .site-header {
  background: rgba(11, 12, 15, 0.88);
  border-color: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.header-inner {
  min-height: var(--header-height);
}

.brand {
  flex: 0 0 auto;
}

.brand-logo {
  width: 32px;
  height: 32px;
  object-fit: contain;
  border-radius: 7px;
  box-shadow: 0 0 18px rgba(232, 177, 63, 0.1);
}

.site-nav a {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
}

/* Hero */
.hero {
  padding-top: clamp(64px, 7vw, 102px);
}

.hero-layout {
  grid-template-columns: minmax(0, 0.94fr) minmax(500px, 1.06fr);
  gap: clamp(42px, 5vw, 72px);
}

.hero-copy {
  min-width: 0;
}

.hero h1 {
  font-size: clamp(43px, 5vw, 70px);
  text-wrap: balance;
}

.hero-description {
  font-size: clamp(15px, 1.35vw, 17px);
}

.download-warning {
  max-width: 540px;
  margin: 20px 0 0;
  padding: 15px 17px;
  border: 1px solid rgba(232, 177, 63, 0.2);
  border-radius: 10px;
  color: var(--muted);
  background: rgba(232, 177, 63, 0.055);
  font-size: 12px;
  line-height: 1.75;
  word-break: keep-all;
}

.download-warning strong {
  display: block;
  margin-bottom: 4px;
  color: var(--muted-strong);
  font-size: 12px;
}

.download-warning a,
.install-fineprint a {
  color: var(--gold-bright);
  text-decoration: underline;
  text-decoration-color: rgba(245, 194, 90, 0.35);
  text-underline-offset: 3px;
}

.hero-visual {
  width: 100%;
  min-width: 0;
}

.interface-window {
  max-width: 100%;
}

/* Cards and sections */
.feature-grid {
  align-items: stretch;
}

.feature-card {
  min-width: 0;
}

.feature-card p,
.workflow-copy p,
.install-copy p,
.faq-list p {
  overflow-wrap: anywhere;
}

#security .feature-card {
  min-height: 365px;
}

.security-hash {
  width: 100%;
  max-width: 100%;
}

.install-fineprint {
  line-height: 1.75;
}

.install-fineprint span {
  display: block;
  margin-top: 7px;
}

.footer-bottom {
  align-items: start;
  gap: 28px;
}

.footer-bottom > span:last-child {
  max-width: 560px;
  text-align: right;
}

/* Legal pages */
.legal-meta a {
  color: var(--gold-bright);
  overflow-wrap: anywhere;
}

.legal-document,
.policy-section,
.release-entry {
  min-width: 0;
}

.policy-table-wrap {
  scrollbar-width: thin;
  scrollbar-color: rgba(232, 177, 63, 0.55) rgba(255, 255, 255, 0.04);
}

.policy-table-wrap::-webkit-scrollbar {
  height: 8px;
}

.policy-table-wrap::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(232, 177, 63, 0.55);
}

.policy-table-wrap::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.04);
}

.hash-block,
.security-hash {
  overflow-wrap: anywhere;
  word-break: break-all;
}

/* Large laptop / small desktop */
@media (max-width: 1180px) {
  .hero-layout {
    grid-template-columns: minmax(0, 0.9fr) minmax(460px, 1.1fr);
    gap: 42px;
  }

  .interface-window {
    transform: rotateY(-4deg) rotateX(1deg);
  }

  .feature-grid {
    grid-template-columns: 1.12fr 1fr 1fr;
  }
}

/* Tablet landscape and portrait */
@media (max-width: 1024px) {
  :root {
    --page-gutter: clamp(28px, 5vw, 52px);
  }

  .hero-layout,
  .workflow-layout,
  .install-panel,
  .faq-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-layout {
    gap: 54px;
    min-height: auto;
  }

  .hero-copy {
    max-width: 760px;
  }

  .hero-description,
  .download-warning {
    max-width: 650px;
  }

  .hero-visual {
    width: min(720px, 100%);
    min-height: 500px;
    margin-inline: auto;
  }

  .interface-window {
    left: 0;
    right: auto;
    width: 100%;
    transform: none;
  }

  .orbit--one {
    right: 0;
  }

  .orbit--two {
    right: 56px;
  }

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

  .feature-card--large {
    grid-column: 1 / -1;
  }

  #security .feature-card--large {
    grid-column: 1 / -1;
  }

  .workflow-layout,
  .faq-layout {
    gap: 38px;
  }

  .workflow-copy p:not(.eyebrow),
  .faq-intro p:not(.eyebrow) {
    max-width: 680px;
  }

  .install-panel {
    gap: 42px;
    padding: clamp(36px, 6vw, 56px);
  }

  .legal-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .legal-toc {
    position: static;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    top: auto;
  }

  .legal-toc strong {
    grid-column: 1 / -1;
  }
}

/* Mobile navigation starts early enough for tablets */
@media (max-width: 860px) {
  :root {
    --header-height: 68px;
  }

  .header-inner {
    min-height: var(--header-height);
  }

  .menu-toggle {
    position: relative;
    z-index: 3;
    display: grid;
    width: 44px;
    height: 44px;
    padding: 0;
    place-items: center;
    gap: 5px;
  }

  .menu-toggle span:not(.sr-only) {
    display: block;
    width: 22px;
    height: 1.5px;
    background: var(--ink);
    transition: transform 0.2s ease, opacity 0.2s ease;
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(2) {
    transform: translateY(3.25px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-3.25px) rotate(-45deg);
  }

  .site-nav {
    position: fixed;
    z-index: 2;
    top: calc(var(--header-height) + 8px);
    right: var(--page-gutter);
    left: var(--page-gutter);
    display: grid;
    gap: 3px;
    max-height: calc(100dvh - var(--header-height) - 32px);
    padding: 10px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: 14px;
    color: var(--muted-strong);
    background: rgba(23, 26, 32, 0.98);
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-10px) scale(0.985);
    transform-origin: top center;
    transition:
      opacity 0.2s ease,
      visibility 0.2s ease,
      transform 0.2s ease;
  }

  .site-nav.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0) scale(1);
  }

  .site-nav > a:not(.nav-download) {
    min-height: 48px;
    padding: 10px 13px;
    border-radius: 8px;
  }

  .site-nav > a:not(.nav-download):hover {
    background: rgba(255, 255, 255, 0.05);
  }

  .nav-download {
    min-height: 48px;
    margin-top: 4px;
    justify-content: center;
  }
}

/* Large phones and narrow tablets */
@media (max-width: 720px) {
  :root {
    --page-gutter: 22px;
  }

  .section {
    padding-block: 82px;
  }

  .hero {
    padding-top: 54px;
    padding-bottom: 44px;
  }

  .hero-layout {
    gap: 38px;
  }

  .hero h1 {
    font-size: clamp(36px, 10.5vw, 50px);
    line-height: 1.13;
  }

  .hero h1 br:last-of-type {
    display: none;
  }

  .hero-description {
    margin-top: 22px;
    line-height: 1.78;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
    margin-top: 28px;
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-actions .text-link {
    justify-content: center;
    min-height: 42px;
  }

  .download-meta {
    text-align: center;
  }

  .download-warning {
    max-width: none;
    margin-top: 16px;
    padding: 14px;
  }

  .hero-visual {
    width: 100%;
    min-height: auto;
  }

  .interface-window {
    position: relative;
    inset: auto;
    overflow: hidden;
    border-radius: 12px;
  }

  .orbit,
  .floating-note {
    display: none;
  }

  .window-topbar {
    height: 43px;
    padding-inline: 13px;
  }

  .window-body {
    min-height: 0;
  }

  .preview-sidebar {
    display: none;
  }

  .preview-content {
    padding: 18px;
  }

  .preview-heading strong {
    font-size: 15px;
  }

  .preview-heading span {
    font-size: 9px;
  }

  .status-chip {
    flex: 0 0 auto;
    font-size: 8px;
  }

  .preview-stats {
    gap: 7px;
    margin-top: 15px;
  }

  .preview-stats div {
    padding: 9px 8px;
  }

  .preview-stats span {
    font-size: 8px;
  }

  .preview-stats strong {
    font-size: 14px;
  }

  .preview-card {
    padding: 12px;
  }

  .card-title span {
    font-size: 10px;
  }

  .card-title small,
  .progress-row,
  .card-footer {
    font-size: 8px;
  }

  .card-footer button {
    font-size: 8px;
  }

  .preview-list div {
    font-size: 8px;
  }

  .trust-row {
    grid-template-columns: 1fr;
    gap: 7px;
    padding-top: 34px;
    text-align: center;
  }

  .trust-row i {
    display: none;
  }

  .feature-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
    margin-top: 34px;
  }

  .feature-card--large,
  #security .feature-card--large {
    grid-column: auto;
  }

  .feature-card {
    display: flex;
    min-height: 0;
    flex-direction: column;
    padding: 25px;
  }

  #security .feature-card {
    min-height: 0;
  }

  .feature-card > p:last-of-type {
    max-width: none;
    margin-bottom: 0;
  }

  /*
   * 데스크톱에서는 카드 장식이 하단에 고정되지만,
   * 모바일에서는 본문 길이가 늘어나므로 그래픽을 일반 흐름에 배치합니다.
   * 이렇게 해야 설명 문구와 그래픽이 겹치지 않습니다.
   */
  .feature-card .feature-graphic,
  .feature-card .mini-chart,
  .feature-card .scan-lines {
    position: relative;
    inset: auto;
    right: auto;
    bottom: auto;
    left: auto;
    width: 100%;
    flex: 0 0 auto;
    margin-top: 24px;
  }

  .feature-card .feature-graphic {
    height: 132px;
  }

  .feature-card .mini-chart {
    height: 90px;
    padding-inline: 2px;
  }

  .feature-card .scan-lines {
    height: 96px;
  }

  .feature-number {
    margin-top: 32px;
  }

  .workflow-list li {
    grid-template-columns: 42px minmax(0, 1fr);
    padding: 19px 17px;
  }

  .install-panel {
    gap: 32px;
    padding: 30px 22px;
    border-radius: 14px;
  }

  .install-copy .button {
    width: 100%;
  }

  .install-steps li {
    padding-block: 17px;
  }

  .faq-list summary {
    min-height: 64px;
    gap: 14px;
    padding-block: 18px;
    font-size: 14px;
  }

  .faq-list summary span {
    flex: 0 0 auto;
  }

  .final-cta {
    padding: 64px 20px;
  }

  .final-cta .button {
    width: min(100%, 360px);
  }

  .footer-inner,
  .footer-bottom {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .footer-links {
    justify-content: flex-start;
    gap: 10px 16px;
  }

  .footer-links a {
    min-height: 40px;
    display: inline-flex;
    align-items: center;
  }

  .footer-bottom {
    margin-top: 30px;
  }

  .footer-bottom > span:last-child {
    max-width: none;
    text-align: left;
    line-height: 1.65;
  }

  .legal-hero {
    padding: 64px 0 44px;
  }

  .legal-hero h1 {
    font-size: clamp(34px, 10vw, 48px);
  }

  .legal-hero__lead {
    margin-top: 18px;
    font-size: 14px;
  }

  .legal-content {
    padding: 48px 0 84px;
  }

  .legal-toc {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: 13px;
  }

  .legal-toc a {
    min-height: 42px;
    display: flex;
    align-items: center;
  }

  .policy-section,
  .release-entry {
    padding: 24px 20px;
  }

  .policy-section h2 {
    font-size: 20px;
  }

  .policy-status,
  .release-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .policy-definition {
    grid-template-columns: minmax(0, 1fr);
  }

  .policy-definition dd {
    padding-left: 0;
  }

  .release-entry__head {
    display: grid;
    gap: 12px;
  }
}

/* Small phones */
@media (max-width: 430px) {
  :root {
    --page-gutter: 18px;
    --header-height: 64px;
  }

  .brand {
    gap: 7px;
    font-size: 14px;
  }

  .brand-logo {
    width: 29px;
    height: 29px;
  }

  .hero h1 {
    font-size: clamp(34px, 10.7vw, 44px);
  }

  .eyebrow {
    font-size: 9px;
    letter-spacing: 0.07em;
  }

  .preview-heading {
    gap: 10px;
  }

  .preview-heading strong {
    font-size: 13px;
  }

  .preview-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .preview-stats div {
    padding: 8px 5px;
  }

  .preview-stats strong {
    font-size: 12px;
  }

  .preview-card {
    margin-top: 10px;
  }

  .preview-list {
    display: none;
  }

  .feature-card {
    padding: 22px;
  }

  .feature-card .feature-graphic,
  .feature-card .mini-chart,
  .feature-card .scan-lines {
    margin-top: 20px;
  }

  .feature-card .scan-lines {
    height: 88px;
  }

  .overlay-box {
    right: 24px;
    width: calc(100% - 48px);
  }

  .legal-toc {
    grid-template-columns: minmax(0, 1fr);
  }

  .policy-callout {
    padding: 18px;
  }

  .policy-section,
  .release-entry {
    padding: 21px 17px;
  }

  .policy-table {
    min-width: 560px;
  }
}

/* Devices with short landscape viewports */
@media (max-height: 540px) and (orientation: landscape) and (max-width: 900px) {
  .site-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .nav-download {
    margin-top: 0;
  }
}

/* Hover effects should not jump on touch devices */
@media (hover: none) {
  .feature-card:hover,
  .button--primary:hover,
  .nav-download:hover {
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-nav,
  .menu-toggle span:not(.sr-only) {
    transition: none;
  }
}

/* JLOA mobile scan-card overlap definitive fix */
@media (max-width: 720px) {
  /*
   * 파란 스캔 그래픽은 다시 카드 하단에 고정하되,
   * 카드 자체에 그래픽 높이 이상의 padding-bottom을 예약합니다.
   * 따라서 설명이 2줄, 3줄로 늘어나도 그래픽과 절대 겹치지 않습니다.
   */
  .feature-card.feature-card--scan {
    position: relative !important;
    display: block !important;
    min-height: 0 !important;
    height: auto !important;
    padding-bottom: 146px !important;
    overflow: hidden;
  }

  .feature-card.feature-card--scan > p:last-of-type {
    position: relative;
    z-index: 2;
    display: block;
    width: 100%;
    max-width: none !important;
    margin: 13px 0 0 !important;
    padding: 0 !important;
  }

  .feature-card.feature-card--scan .scan-lines {
    position: absolute !important;
    z-index: 1;
    top: auto !important;
    right: 24px !important;
    bottom: 24px !important;
    left: 24px !important;
    width: auto !important;
    height: 88px !important;
    margin: 0 !important;
    transform: none !important;
  }
}

@media (max-width: 430px) {
  .feature-card.feature-card--scan {
    padding-bottom: 132px !important;
  }

  .feature-card.feature-card--scan .scan-lines {
    right: 22px !important;
    bottom: 22px !important;
    left: 22px !important;
    height: 78px !important;
  }
}