* { box-sizing: border-box; }

:root {
  --blue:#5b5df7;
  --purple:#8b5cf6;
  --orange:#f59e0b;
  --ink:#172033;
  --muted:#697386;
  --bg:#f5f3ee;
  --panel:#ffffff;
  --line:#e4e8f0;
  --soft:#f8f9fc;
  --danger:#e5484d;
  --warning:#b45f06;
}

body {
  margin:0;
  font-family:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:var(--bg);
  color:var(--ink);
}

button,input,textarea,select{font:inherit}
button{border:none;cursor:pointer}

.app-shell{display:grid;grid-template-columns:280px 1fr;min-height:100vh}
.sidebar{position:sticky;top:0;height:100vh;background:#121826;color:white;padding:24px;display:flex;flex-direction:column}
.brand{display:flex;align-items:center;gap:12px;margin-bottom:26px}
.brand-mark{width:44px;height:44px;border-radius:16px;background:linear-gradient(135deg,var(--blue),var(--purple),var(--orange));display:grid;place-items:center;font-weight:950;font-size:22px}
.brand strong{display:block;font-size:23px;letter-spacing:-.05em}
.brand span{color:#aeb7c8;font-size:12px}
.create-class-btn{width:100%;background:linear-gradient(135deg,var(--blue),var(--purple));color:white;border-radius:18px;padding:14px;font-weight:900;margin-bottom:22px}
.side-nav{display:grid;gap:8px}
.nav-item{text-align:left;background:transparent;color:#c9d2e3;padding:12px 14px;border-radius:14px;font-weight:750}
.nav-item.active,.nav-item:hover{background:rgba(255,255,255,.10);color:white}
.sidebar-footer{margin-top:auto;color:#aeb7c8;border-top:1px solid rgba(255,255,255,.10);padding-top:18px}
.sidebar-footer p{margin:0;font-weight:800}

.workspace{padding:28px;overflow:hidden}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:24px}
.eyebrow{margin:0 0 4px;color:var(--muted);font-weight:800}
h1{margin:0;font-size:38px;letter-spacing:-.06em}
.top-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
select,input,textarea{width:100%;border:1px solid var(--line);background:white;border-radius:14px;padding:12px 14px}
textarea{min-height:120px;resize:vertical}
.top-actions select{min-width:140px}
button,.button{background:var(--blue);color:white;border-radius:999px;padding:12px 18px;font-weight:900}
.secondary{background:#20283a!important}
.ghost{background:#edf1f8!important;color:#283247!important}
.danger{background:var(--danger)!important}
.hidden{display:none!important}

.login-notice{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px 18px;margin:0 0 22px;color:var(--muted);box-shadow:0 8px 26px rgba(31,38,51,.06)}
.login-notice strong{color:var(--ink);margin-right:8px}
.login-notice.logged-in{background:#effdf5;border-color:#bbf7d0;color:#166534}
.save-status{background:#ffffff;border:1px solid var(--line);border-radius:999px;display:inline-flex;align-items:center;padding:8px 14px;margin:-8px 0 12px;color:var(--muted);font-size:12px;font-weight:900;box-shadow:0 8px 22px rgba(31,38,51,.05)}
.save-status.saving{color:#92400e;background:#fffbeb;border-color:#fde68a}
.save-status.saved{color:#166534;background:#f0fdf4;border-color:#bbf7d0}
.save-status.error{color:#991b1b;background:#fef2f2;border-color:#fecaca}

.view{display:none}
.view.active{display:block}
.hero-panel{background:linear-gradient(135deg,#5b5df7,#8b5cf6 60%,#f59e0b);color:white;border-radius:32px;padding:34px;display:grid;grid-template-columns:1fr 260px;gap:24px;align-items:center;box-shadow:0 24px 80px rgba(36,107,254,.24)}
.badge{display:inline-block;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.30);padding:7px 14px;border-radius:999px;font-weight:900}
.hero-panel h2{margin:14px 0;font-size:clamp(34px,5vw,64px);line-height:1.06;letter-spacing:-.07em}
.hero-panel p{line-height:1.7;font-size:17px}
.glass-card{background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.28);border-radius:28px;padding:26px}
.glass-card strong{display:block;font-size:48px;letter-spacing:-.06em}

.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.actions.center{justify-content:center}
.section{background:var(--panel);border-radius:28px;padding:26px;margin:22px 0;box-shadow:0 12px 38px rgba(31,38,51,.08)}
.inner-section{box-shadow:none;background:var(--soft)}
.section-title h3{margin:0 0 6px;font-size:26px;letter-spacing:-.04em}
.section-title p,.muted{color:var(--muted);line-height:1.7}
.small-note{margin:8px 0 0;font-size:13px}
.inline-controls{margin-top:16px}

.class-grid,.tool-grid,.result-grid,.ai-grid,.seo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin-top:18px}
.class-card,.tool-shortcut,.card,.ai-card{background:var(--soft);border:1px solid var(--line);border-radius:24px;padding:20px}
.class-card{cursor:pointer;transition:transform .18s ease,box-shadow .18s ease}
.class-card:hover{transform:translateY(-2px);box-shadow:0 18px 40px rgba(31,38,51,.10)}
.class-card.active-class{border-color:var(--blue);background:#f3f4ff}
.class-card h4{margin:0 0 8px;font-size:22px}
.tool-shortcut{color:var(--ink);text-align:left;display:grid;gap:6px;min-height:120px;background:white;font-size:28px}
.tool-shortcut strong{display:block;font-size:20px}
.tool-shortcut span{color:var(--muted);font-size:14px}

.control-panel,.print-panel{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin:16px 0}
.ng-zone-panel,.placement-panel{display:block;background:var(--soft);border:1px solid var(--line);border-radius:22px;padding:16px;margin:16px 0}
.control-panel.compact{grid-template-columns:repeat(auto-fit,minmax(150px,220px));align-items:end}
label{font-weight:850;font-size:14px;color:#3c465b}
.segmented{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.segmented button{background:#edf1f8;color:#283247;padding:10px 14px;border-radius:999px}
.segmented button.active{background:var(--blue);color:white}
.wide-segmented button{border-radius:14px}
.check-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:10px}
.ai-options{display:flex;gap:16px;flex-wrap:wrap;margin-top:16px;color:var(--muted);font-weight:700}
.warning-box{margin-top:16px;background:#fff8ef;color:var(--warning);border:1px solid #ffd9a8;border-radius:18px;padding:14px 16px;line-height:1.6;font-weight:700}
.warning-box.hidden{display:none}

.print-seat-area{width:100%;max-width:1120px;margin:0 auto;display:flex;flex-direction:column;align-items:center}
.print-seat-area.print-teacher{flex-direction:column-reverse}
.blackboard{width:min(720px,100%);margin:20px auto 16px;padding:12px;background:#20283a;color:white;text-align:center;border-radius:16px;font-weight:950;letter-spacing:.18em}
.seat-chart{display:grid;justify-content:center;gap:12px;overflow-x:auto;padding:10px 0 30px}
.seat{min-width:120px;min-height:78px;background:white;border:2px solid var(--line);border-radius:20px;display:grid;place-items:center;text-align:center;font-weight:950;padding:8px;box-shadow:0 10px 24px rgba(31,38,51,.07);user-select:none;position:relative}
.seat[draggable=true]{cursor:grab}
.seat.dragging{opacity:.45;border-color:var(--blue)}
.seat.empty{background:#fafbfe;color:#a2aaba;font-weight:700}
.seat.care{border-color:var(--orange);background:#fff8ef}
.seat.ng-risk{border-color:var(--danger);background:#fff1f1}
.seat .seat-meta{position:absolute;right:8px;bottom:6px;font-size:11px;color:var(--muted);font-weight:800}
body.hide-number .seat-number,body.hide-gender .seat-gender{display:none}

.class-admin-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.sub-panel{margin-top:22px;padding:18px;background:var(--soft);border:1px solid var(--line);border-radius:22px}
.sub-panel h4{margin:0 0 8px}
.memo-list,.mini-list,.pill-list{display:grid;gap:10px;margin-top:16px}
.memo-item,.gender-row,.student-row{background:white;border:1px solid var(--line);border-radius:16px;padding:12px}
.gender-row{display:grid;grid-template-columns:1fr 120px;align-items:center;gap:12px}
.memo-item .remove-btn{margin-top:8px;background:#edf1f8;color:#283247;padding:8px 12px;font-size:13px}
.pill-list{display:flex;flex-wrap:wrap}
.pill{background:white;border:1px solid var(--line);color:var(--ink);border-radius:999px;padding:9px 13px;font-weight:850}
.pill.active{background:var(--blue);color:white}
.student-table{display:grid;gap:8px;margin-top:14px}
.student-row{display:grid;grid-template-columns:58px 1fr 80px 1.2fr;gap:10px;align-items:center}
.student-row.header{background:#20283a;color:white;font-weight:900}

.card h4,.ai-card h4{margin-top:0;font-size:20px}
.card ul{margin:0;padding-left:20px;line-height:1.9}
.order-list{background:var(--soft);border:1px solid var(--line);border-radius:24px;padding:24px 24px 24px 52px;line-height:2;font-size:18px}
.timer-section{text-align:center}
.timer-display{font-size:clamp(68px,13vw,160px);font-weight:950;letter-spacing:-.08em;margin:30px 0}

.picker-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;margin-top:18px}
.picker-main-card{background:linear-gradient(135deg,#20283a,#5b5df7);color:white;border-radius:32px;padding:36px;text-align:center;box-shadow:0 24px 80px rgba(36,107,254,.20)}
.picker-label{font-size:14px;font-weight:900;opacity:.8}
.picked-student{font-size:clamp(48px,9vw,110px);font-weight:950;letter-spacing:-.08em;margin:22px 0}
.picked-meta{opacity:.8;font-weight:800}
.picker-side .sub-panel{margin-top:0;margin-bottom:18px}
.picker-side label{display:block;margin:12px 0}
.history-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.history-chip{background:white;border:1px solid var(--line);border-radius:999px;padding:10px 14px;font-weight:850}
.absent-row{display:flex;justify-content:space-between;gap:10px;align-items:center;background:white;border:1px solid var(--line);border-radius:16px;padding:10px 12px}

.ad-section{text-align:center}
.ad-label{color:var(--muted);font-size:12px;font-weight:800;margin:0 0 8px}
.ad-placeholder{border:1px dashed var(--line);background:#fafafa;color:var(--muted);border-radius:18px;min-height:96px;display:grid;place-items:center;font-weight:800}
.site-footer{padding:24px;text-align:center;color:var(--muted);display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.site-footer a{color:var(--blue);font-weight:800;text-decoration:none}

.modal{position:fixed;inset:0;background:rgba(18,24,38,.58);display:grid;place-items:center;padding:20px;z-index:10}
.modal.hidden{display:none}
.modal-card{width:min(560px,100%);background:white;border-radius:30px;padding:28px;box-shadow:0 30px 100px rgba(0,0,0,.28);position:relative}
.modal-close{position:absolute;right:18px;top:16px;background:#edf1f8;color:var(--ink);width:38px;height:38px;padding:0}

@media(max-width:980px){
  .app-shell{grid-template-columns:1fr}
  .sidebar{position:relative;height:auto}
  .side-nav{grid-template-columns:repeat(auto-fit,minmax(130px,1fr))}
  .hero-panel,.settings-grid,.class-admin-grid,.picker-layout{grid-template-columns:1fr}
  .topbar{align-items:flex-start;flex-direction:column}
  .top-actions{width:100%}
  .top-actions select{width:100%}
  .student-row{grid-template-columns:45px 1fr}
  .student-row span:nth-child(3),.student-row span:nth-child(4){font-size:12px;color:var(--muted)}
}

@media print{
  @page{margin:10mm}
  .sidebar,.topbar,.section.no-print,.actions,.ai-options,.warning-box,.login-notice,.save-status,.ad-section,.site-footer{display:none!important}
  body{background:white}
  .app-shell{display:block}
  .workspace{padding:0}
  .view{display:none!important}
  #seatView{display:block!important}
  .print-seat-area{max-width:none;width:100%;page-break-inside:avoid}
  .blackboard{background:#222!important;color:white!important;border-radius:6px;margin:8px auto}
  .seat-chart{gap:7px;padding:8px 0;overflow:visible}
  .seat{box-shadow:none;border:1px solid #333;min-width:88px;min-height:54px;border-radius:8px;font-size:12px}
  .seat .seat-meta{font-size:9px;right:4px;bottom:3px}
}


.legal-page {
  max-width: 980px;
  margin: 0 auto;
}

.legal-page h1 {
  margin-bottom: 10px;
}

.legal-page h2 {
  margin-top: 34px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 24px;
  letter-spacing: -0.03em;
}

.legal-page h3 {
  margin-top: 22px;
  font-size: 18px;
}

.legal-page p,
.legal-page li {
  line-height: 1.9;
}

.legal-page ul {
  padding-left: 1.4em;
}

.legal-page .button {
  display: inline-block;
  text-decoration: none;
}


/* LaClass 7.0 commercial pages */
.marketing-page {
  background: #f7f4ef;
  color: var(--ink);
}

.public-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(247, 244, 239, .88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(228,232,240,.82);
}

.public-nav {
  max-width: 1180px;
  margin: 0 auto;
  padding: 14px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.public-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 950;
  font-size: 22px;
  letter-spacing: -.05em;
}

.public-brand .brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  color: white;
}

.public-links {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.public-links a {
  color: #374151;
  text-decoration: none;
  font-weight: 850;
  font-size: 14px;
}

.public-links .nav-cta {
  color: white;
  background: var(--blue);
  padding: 10px 14px;
  border-radius: 999px;
}

.public-main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 34px 22px 60px;
}

.marketing-hero {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 24px;
  align-items: center;
  padding: 52px 0 34px;
}

.marketing-hero-card {
  background: linear-gradient(135deg,#5b5df7,#8b5cf6 62%,#f59e0b);
  color: white;
  border-radius: 38px;
  padding: clamp(30px,5vw,58px);
  box-shadow: 0 30px 90px rgba(91,93,247,.25);
}

.marketing-hero-card h1 {
  font-size: clamp(42px,7vw,78px);
  line-height: 1.04;
  letter-spacing: -.08em;
  margin: 16px 0;
}

.marketing-hero-card p {
  font-size: 18px;
  line-height: 1.85;
  max-width: 720px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.hero-actions a,
.public-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border-radius: 999px;
  padding: 13px 18px;
  font-weight: 950;
}

.hero-actions .primary,
.public-button.primary {
  background: white;
  color: var(--blue);
}

.hero-actions .dark,
.public-button.dark {
  background: #172033;
  color: white;
}

.hero-actions .outline,
.public-button.outline {
  background: rgba(255,255,255,.16);
  color: white;
  border: 1px solid rgba(255,255,255,.35);
}

.preview-panel {
  background: white;
  border: 1px solid var(--line);
  border-radius: 34px;
  padding: 22px;
  box-shadow: 0 24px 70px rgba(31,38,51,.12);
}

.preview-top {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-weight: 900;
  font-size: 13px;
  margin-bottom: 16px;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 9px;
}

.preview-seat {
  min-height: 52px;
  border-radius: 16px;
  background: #f3f4ff;
  border: 1px solid #dfe2ff;
  display: grid;
  place-items: center;
  font-weight: 950;
  font-size: 12px;
}

.preview-seat:nth-child(2n) {
  background: #fff8ef;
  border-color: #ffe4c2;
}

.public-section {
  background: white;
  border: 1px solid var(--line);
  border-radius: 32px;
  padding: clamp(24px,4vw,38px);
  margin: 24px 0;
  box-shadow: 0 14px 42px rgba(31,38,51,.07);
}

.public-section.soft {
  background: #fbfcff;
}

.public-section h2 {
  font-size: clamp(28px,4vw,46px);
  line-height: 1.12;
  letter-spacing: -.06em;
  margin: 0 0 12px;
}

.public-section > p {
  color: var(--muted);
  line-height: 1.8;
  font-size: 16px;
}

.feature-grid,
.article-grid,
.faq-grid,
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit,minmax(230px,1fr));
  gap: 14px;
  margin-top: 22px;
}

.feature-card,
.article-card,
.faq-card,
.step-card {
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 20px;
}

.feature-card .icon {
  font-size: 30px;
  margin-bottom: 12px;
}

.feature-card h3,
.article-card h3,
.faq-card h3,
.step-card h3 {
  margin: 0 0 8px;
  font-size: 20px;
  letter-spacing: -.03em;
}

.feature-card p,
.article-card p,
.faq-card p,
.step-card p {
  color: var(--muted);
  line-height: 1.75;
}

.article-card a {
  color: var(--blue);
  font-weight: 950;
  text-decoration: none;
}

.pricing-card {
  background: linear-gradient(135deg,#172033,#293249);
  color: white;
  border-radius: 30px;
  padding: 28px;
  margin-top: 20px;
}

.pricing-card p {
  color: #c9d2e3;
}

.legal-layout,
.article-layout {
  max-width: 900px;
  margin: 0 auto;
}

.article-body h1,
.legal-layout h1 {
  font-size: clamp(34px,5vw,58px);
  letter-spacing: -.06em;
  line-height: 1.08;
}

.article-body h2,
.legal-layout h2 {
  margin-top: 34px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.article-body p,
.article-body li,
.legal-layout p,
.legal-layout li {
  line-height: 1.95;
}

.article-body ul,
.legal-layout ul,
.article-body ol,
.legal-layout ol {
  padding-left: 1.4em;
}

.breadcrumb {
  color: var(--muted);
  font-weight: 850;
  margin-bottom: 18px;
}

.breadcrumb a {
  color: var(--blue);
  text-decoration: none;
}

.contact-box {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: #166534;
  border-radius: 24px;
  padding: 20px;
  margin-top: 18px;
}

.public-footer {
  border-top: 1px solid var(--line);
  padding: 34px 22px;
  color: var(--muted);
}

.public-footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

.public-footer a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 850;
  margin-right: 12px;
}

@media(max-width: 860px) {
  .marketing-hero {
    grid-template-columns: 1fr;
  }
  .public-nav {
    align-items: flex-start;
    flex-direction: column;
  }
  .public-links {
    gap: 10px;
  }
}

/* LaClass 7.0 complete */
.marketing-page{background:#f7f4ef;color:var(--ink)}
.public-header{position:sticky;top:0;z-index:20;background:rgba(247,244,239,.88);backdrop-filter:blur(18px);border-bottom:1px solid rgba(228,232,240,.82)}
.public-nav{max-width:1180px;margin:0 auto;padding:14px 22px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.public-brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:950;font-size:22px;letter-spacing:-.05em}
.public-brand .brand-mark{width:38px;height:38px;border-radius:14px;color:white}
.public-links{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.public-links a{color:#374151;text-decoration:none;font-weight:850;font-size:14px}
.public-links .nav-cta{color:white;background:var(--blue);padding:10px 14px;border-radius:999px}
.public-main{max-width:1180px;margin:0 auto;padding:34px 22px 60px}
.marketing-hero{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:center;padding:52px 0 34px}
.marketing-hero-card{background:linear-gradient(135deg,#5b5df7,#8b5cf6 62%,#f59e0b);color:white;border-radius:38px;padding:clamp(30px,5vw,58px);box-shadow:0 30px 90px rgba(91,93,247,.25)}
.marketing-hero-card h1{font-size:clamp(42px,7vw,78px);line-height:1.04;letter-spacing:-.08em;margin:16px 0}
.marketing-hero-card p{font-size:18px;line-height:1.85;max-width:720px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.hero-actions a,.public-button{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;border-radius:999px;padding:13px 18px;font-weight:950}
.hero-actions .primary,.public-button.primary{background:white;color:var(--blue)}
.hero-actions .dark,.public-button.dark{background:#172033;color:white}
.hero-actions .outline,.public-button.outline{background:rgba(255,255,255,.16);color:white;border:1px solid rgba(255,255,255,.35)}
.preview-panel{background:white;border:1px solid var(--line);border-radius:34px;padding:22px;box-shadow:0 24px 70px rgba(31,38,51,.12)}
.preview-top{display:flex;justify-content:space-between;color:var(--muted);font-weight:900;font-size:13px;margin-bottom:16px}
.preview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}
.preview-seat{min-height:52px;border-radius:16px;background:#f3f4ff;border:1px solid #dfe2ff;display:grid;place-items:center;font-weight:950;font-size:12px}
.preview-seat:nth-child(2n){background:#fff8ef;border-color:#ffe4c2}
.public-section{background:white;border:1px solid var(--line);border-radius:32px;padding:clamp(24px,4vw,38px);margin:24px 0;box-shadow:0 14px 42px rgba(31,38,51,.07)}
.public-section.soft{background:#fbfcff}
.public-section h1{font-size:clamp(34px,5vw,58px);letter-spacing:-.06em;line-height:1.08}
.public-section h2{font-size:clamp(28px,4vw,46px);line-height:1.12;letter-spacing:-.06em;margin:0 0 12px}
.public-section>p{color:var(--muted);line-height:1.8;font-size:16px}
.feature-grid,.article-grid,.faq-grid,.steps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px;margin-top:22px}
.feature-card,.article-card,.faq-card,.step-card{background:var(--soft);border:1px solid var(--line);border-radius:24px;padding:20px}
.feature-card .icon{font-size:30px;margin-bottom:12px}
.feature-card h3,.article-card h3,.faq-card h3,.step-card h3{margin:0 0 8px;font-size:20px;letter-spacing:-.03em}
.feature-card p,.article-card p,.faq-card p,.step-card p{color:var(--muted);line-height:1.75}
.article-card a{color:var(--blue);font-weight:950;text-decoration:none}
.legal-layout,.article-layout{max-width:900px;margin:0 auto}
.article-body h2,.legal-layout h2{margin-top:34px;padding-top:18px;border-top:1px solid var(--line)}
.article-body p,.article-body li,.legal-layout p,.legal-layout li{line-height:1.95}
.breadcrumb{color:var(--muted);font-weight:850;margin-bottom:18px}
.breadcrumb a{color:var(--blue);text-decoration:none}
.contact-box{background:#f0fdf4;border:1px solid #bbf7d0;color:#166534;border-radius:24px;padding:20px;margin-top:18px}
.public-footer{border-top:1px solid var(--line);padding:34px 22px;color:var(--muted)}
.public-footer-inner{max-width:1180px;margin:0 auto;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}
.public-footer a{color:var(--muted);text-decoration:none;font-weight:850;margin-right:12px}
@media(max-width:860px){.marketing-hero{grid-template-columns:1fr}.public-nav{align-items:flex-start;flex-direction:column}.public-links{gap:10px}}


/* LaClass 8.0 contact form */
.contact-form {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.contact-form label {
  display: grid;
  gap: 8px;
  font-weight: 900;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
}

.contact-form textarea {
  min-height: 180px;
}

.agree-row {
  display: flex !important;
  grid-template-columns: none !important;
  align-items: flex-start;
  gap: 10px !important;
  font-weight: 700 !important;
  color: var(--muted);
}

.agree-row input {
  width: auto;
  margin-top: 4px;
}

.contact-status {
  border-radius: 20px;
  padding: 14px 16px;
  margin: 20px 0;
  font-weight: 900;
  line-height: 1.7;
}

.contact-status.success {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: #166534;
}

.contact-status.error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
}

.contact-status.hidden {
  display: none;
}

.contact-form button:disabled {
  opacity: .65;
  cursor: not-allowed;
}


/* Phase12 functional polish: preserve layout while removing decorative emoji UI. */
.section-title-actions{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;flex-wrap:wrap}
.section-title-actions p{margin-bottom:0}
.tool-shortcut{font-size:inherit}
.tool-index{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:#f0f2f7;color:#6b7280;font-size:12px;font-weight:950;letter-spacing:.08em}
@media(max-width:640px){.section-title-actions>button{width:100%}}


/* LaClass refined homepage — intentionally scoped to .lc-home */
.lc-home{--lc-navy:#101827;--lc-text:#172033;--lc-muted:#667085;--lc-blue:#4f5fe7;--lc-blue2:#6875ef;--lc-paper:#f7f8fb;--lc-line:#e7e9ef;background:#fff;color:var(--lc-text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
.lc-home a{color:inherit}.lc-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.88);backdrop-filter:blur(18px);border-bottom:1px solid rgba(231,233,239,.8)}
.lc-nav{max-width:1200px;height:72px;margin:auto;padding:0 28px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:28px}.lc-brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-size:20px;font-weight:850;letter-spacing:-.045em;width:max-content}.lc-logo{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:var(--lc-navy);color:#fff;font-size:16px;letter-spacing:-.03em}.lc-links{display:flex;gap:30px}.lc-links a{text-decoration:none;font-size:13px;font-weight:650;color:#505a6c}.lc-links a:hover{color:var(--lc-text)}.lc-nav-button{justify-self:end;text-decoration:none;background:var(--lc-navy);color:#fff!important;padding:10px 17px;border-radius:10px;font-size:13px;font-weight:750}
.lc-hero{max-width:1200px;margin:0 auto;padding:96px 28px 86px;display:grid;grid-template-columns:.92fr 1.08fr;gap:72px;align-items:center}.lc-kicker{margin:0 0 22px!important;font-size:11px!important;line-height:1!important;letter-spacing:.18em;font-weight:800!important;color:#7b8495!important}.lc-hero h1{font-size:clamp(52px,6vw,82px);line-height:1.03;letter-spacing:-.075em;margin:0;color:var(--lc-navy);font-weight:850}.lc-hero h1 span{color:var(--lc-blue)}.lc-lead{font-size:18px;line-height:1.9;color:var(--lc-muted);margin:28px 0 0}.lc-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:34px}.lc-actions a{min-height:50px;display:inline-flex;align-items:center;justify-content:center;text-decoration:none;border-radius:12px;padding:0 20px;font-size:14px;font-weight:780}.lc-primary{background:var(--lc-navy);color:#fff!important;gap:28px}.lc-primary span{font-size:18px}.lc-secondary{border:1px solid var(--lc-line);background:#fff;color:#374151!important}.lc-note{display:flex;align-items:flex-start;gap:9px;color:#7a8393;font-size:12px;line-height:1.65;margin:17px 0 0;max-width:520px}.lc-note span{width:7px;height:7px;flex:0 0 7px;border-radius:50%;background:#5eb787;margin-top:6px}
.lc-product-shot{background:#fff;border:1px solid #e4e7ec;border-radius:20px;box-shadow:0 35px 90px rgba(20,31,53,.12),0 2px 8px rgba(20,31,53,.04);overflow:hidden;transform:perspective(1400px) rotateY(-2deg)}.lc-windowbar{height:54px;border-bottom:1px solid #eceef2;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 18px;color:#667085;font-size:12px}.lc-windowbar b{color:#344054}.lc-windowbar small{justify-self:end}.lc-dots{display:flex;gap:6px}.lc-dots i{width:8px;height:8px;border-radius:50%;background:#d9dde5}.lc-shot-body{padding:28px;background:#fbfcfe}.lc-board{max-width:360px;margin:0 auto 24px;text-align:center;padding:9px;background:#263244;color:#fff;border-radius:7px;font-size:11px;font-weight:800;letter-spacing:.25em}.lc-seat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.lc-seat-grid div{height:67px;background:#fff;border:1px solid #e3e6ec;border-radius:10px;padding:10px;color:#98a2b3;font-size:9px;box-shadow:0 3px 9px rgba(20,31,53,.025)}.lc-seat-grid strong{display:block;text-align:center;margin-top:6px;color:#344054;font-size:12px}.lc-shot-footer{display:flex;align-items:center;gap:14px;margin-top:20px;padding-top:18px;border-top:1px solid #e9ecf1;color:#7b8495;font-size:10px}.lc-shot-footer button{margin-left:auto;border-radius:9px;padding:9px 13px;background:var(--lc-blue);font-size:10px;pointer-events:none}
.lc-trust{border-top:1px solid var(--lc-line);border-bottom:1px solid var(--lc-line);padding:25px 28px;text-align:center}.lc-trust p{font-size:12px;color:#98a2b3;margin:0 0 13px}.lc-trust div{display:flex;justify-content:center;gap:42px;flex-wrap:wrap}.lc-trust span{font-size:12px;font-weight:700;color:#4b5565}
.lc-section{max-width:1200px;margin:0 auto;padding:112px 28px}.lc-section-head{max-width:700px}.lc-section-head h2,.lc-how h2{font-size:clamp(38px,5vw,58px);line-height:1.12;letter-spacing:-.06em;margin:0;font-weight:820;color:var(--lc-navy)}.lc-section-head>p:last-child,.lc-how-copy>p:last-of-type{font-size:16px;line-height:1.85;color:var(--lc-muted);margin-top:20px}.lc-feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:52px}.lc-feature{min-height:230px;border:1px solid var(--lc-line);border-radius:18px;padding:24px;display:flex;flex-direction:column;background:#fff;transition:transform .2s ease,box-shadow .2s ease}.lc-feature:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(20,31,53,.07)}.lc-feature-large{grid-column:span 2;grid-row:span 2;min-height:474px;background:var(--lc-navy);color:#fff;position:relative;overflow:hidden}.lc-num{font-size:10px;letter-spacing:.14em;color:#98a2b3;font-weight:800}.lc-feature h3{font-size:23px;letter-spacing:-.04em;margin:auto 0 10px}.lc-feature p{font-size:14px;line-height:1.75;color:var(--lc-muted);margin:0}.lc-feature-large p{color:#aeb7c6;max-width:420px}.lc-mini-seats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:34px;transform:translateY(18px)}.lc-mini-seats i{height:68px;border:1px solid rgba(255,255,255,.13);background:rgba(255,255,255,.055);border-radius:9px}
.lc-how{background:var(--lc-paper);border-top:1px solid var(--lc-line);border-bottom:1px solid var(--lc-line);padding:104px max(28px,calc((100vw - 1144px)/2));display:grid;grid-template-columns:.8fr 1.2fr;gap:100px;align-items:start}.lc-how-copy>a{display:inline-block;margin-top:20px;text-decoration:none;color:var(--lc-blue);font-size:13px;font-weight:800}.lc-steps{list-style:none;padding:0;margin:0;border-top:1px solid #dfe3ea}.lc-steps li{display:grid;grid-template-columns:70px 1fr;gap:18px;padding:28px 0;border-bottom:1px solid #dfe3ea}.lc-steps li>span{font-size:11px;color:#98a2b3;font-weight:800;letter-spacing:.12em}.lc-steps strong{font-size:19px}.lc-steps p{color:var(--lc-muted);font-size:13px;margin:8px 0 0;line-height:1.6}
.lc-section-head.row{max-width:none;display:flex;justify-content:space-between;align-items:end;gap:30px}.lc-section-head.row>a{font-size:13px;text-decoration:none;font-weight:750;color:var(--lc-blue)}.lc-article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:45px}.lc-article-grid>a{min-height:230px;border:1px solid var(--lc-line);border-radius:18px;padding:24px;text-decoration:none;display:flex;flex-direction:column;transition:transform .2s ease}.lc-article-grid>a:hover{transform:translateY(-3px)}.lc-article-grid small{font-size:10px;color:#8a93a3;font-weight:800;letter-spacing:.1em}.lc-article-grid h3{font-size:20px;line-height:1.5;letter-spacing:-.035em;margin:20px 0}.lc-article-grid span{margin-top:auto;color:var(--lc-blue);font-size:12px;font-weight:800}
.lc-final{margin:20px auto 90px;max-width:1144px;background:var(--lc-navy);color:#fff;border-radius:24px;padding:76px 7vw;text-align:center}.lc-final .lc-kicker{color:#8993a3!important}.lc-final h2{font-size:clamp(40px,5vw,62px);line-height:1.08;letter-spacing:-.065em;margin:0}.lc-final>p:not(.lc-kicker){color:#aeb7c6;margin:20px 0 30px}.lc-final>a{display:inline-flex;gap:32px;align-items:center;text-decoration:none;background:#fff;color:var(--lc-navy);border-radius:11px;padding:14px 19px;font-size:13px;font-weight:800}
.lc-footer{max-width:1200px;margin:auto;padding:36px 28px 55px;border-top:1px solid var(--lc-line);display:flex;justify-content:space-between;gap:30px}.lc-footer p{font-size:11px;color:#98a2b3;margin:12px 0 0}.lc-footer nav{display:flex;align-items:center;gap:20px;flex-wrap:wrap}.lc-footer nav a{text-decoration:none;color:#667085;font-size:11px;font-weight:650}
@media(max-width:900px){.lc-nav{grid-template-columns:1fr auto}.lc-links{display:none}.lc-hero{grid-template-columns:1fr;padding-top:65px;gap:50px}.lc-product-shot{transform:none;max-width:680px}.lc-feature-grid{grid-template-columns:repeat(2,1fr)}.lc-how{grid-template-columns:1fr;gap:55px}.lc-article-grid{grid-template-columns:1fr}.lc-article-grid>a{min-height:170px}}
@media(max-width:600px){.lc-nav{height:64px;padding:0 18px}.lc-nav-button{padding:9px 12px}.lc-hero{padding:55px 20px 60px}.lc-hero h1{font-size:47px}.lc-lead{font-size:16px}.lc-actions{display:grid}.lc-actions a{width:100%}.lc-note{font-size:11px}.lc-shot-body{padding:18px}.lc-seat-grid{gap:6px}.lc-seat-grid div{height:58px;padding:7px}.lc-trust div{gap:12px 24px}.lc-section{padding:80px 20px}.lc-feature-grid{grid-template-columns:1fr}.lc-feature-large{grid-column:auto;min-height:400px}.lc-how{padding:80px 20px}.lc-section-head.row{align-items:flex-start;flex-direction:column}.lc-final{margin:0 20px 65px;padding:60px 22px}.lc-footer{margin:0 20px;padding-left:0;padding-right:0;flex-direction:column}.lc-footer nav{gap:14px}.lc-windowbar{grid-template-columns:1fr 1fr}.lc-windowbar b{display:none}}

/* Keep A4 portrait charts within the printable page width. */
@media print {
  .print-seat-area.portrait .seat-chart { max-width: 190mm; width: 100%; }
  .print-seat-area.portrait .seat { min-width: 0; min-height: 48px; padding: 4px; overflow-wrap: anywhere; }
  .print-seat-area.landscape .seat-chart { max-width: 277mm; }
}

/* データ管理パネル */
.data-actions{display:flex;flex-wrap:wrap;gap:10px;margin:12px 0}
.danger-zone{border:1px solid #f3b6b6;background:#fff7f7}
.danger-zone h4{color:#b42318}