:root {
  color-scheme: light;
  --bg: #f4f7fb;
  --surface: #fff;
  --surface-soft: #f8fafc;
  --text: #172033;
  --muted: #5d6b7e;
  --border: #d6deea;
  --accent: #0f4c81;
  --accent-soft: #e8f3fb;
  --call: #c2413b;
  --call-soft: #fff1f0;
  --put: #2563a5;
  --put-soft: #edf5ff;
  --warning: #c86516;
  --warning-soft: #fff7e8;
  --success: #157447;
  --danger: #b42318;
  --shadow: 0 18px 48px rgba(25, 45, 78, 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 12% 0, rgba(15, 76, 129, .1), transparent 26rem),
    var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "Hiragino Sans", "Noto Sans JP", Meiryo, sans-serif;
  line-height: 1.65;
}
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
a { color: var(--accent); }

.paper-banner {
  position: sticky;
  z-index: 50;
  top: 0;
  padding: 8px 16px;
  border-bottom: 1px solid #f0c784;
  background: #fff0c9;
  color: #7a3a08;
  font-weight: 800;
  text-align: center;
}
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  padding: 18px 0;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 900;
  text-decoration: none;
}
.brand img { border-radius: 12px; }
.topbar nav { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.topbar nav a, .link-button {
  border: 0;
  background: transparent;
  color: var(--accent);
  font-weight: 800;
  text-decoration: none;
}
.topbar form { margin: 0; }
.shell { width: min(1240px, calc(100% - 32px)); margin: 0 auto; }
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr);
  gap: 24px;
  align-items: stretch;
  margin: 18px 0 24px;
}
.hero > div {
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid rgba(15, 76, 129, .12);
  border-radius: 26px;
  background: rgba(255, 255, 255, .94);
  box-shadow: var(--shadow);
}
.hero h1 { margin: 4px 0 18px; font-size: clamp(2.1rem, 5vw, 4rem); line-height: 1.08; }
.hero p:last-child { max-width: 760px; margin-bottom: 0; color: var(--muted); font-size: 1.05rem; }
.eyebrow {
  margin: 0 0 5px;
  color: var(--accent);
  font-size: .75rem;
  font-weight: 900;
  letter-spacing: .12em;
}
.hero-rules { display: grid; align-content: center; gap: 12px; }
.hero-rules strong { color: var(--accent); font-size: 1.25rem; }
.hero-rules span { padding: 10px 12px; border-radius: 12px; background: var(--surface-soft); }

.panel {
  margin: 22px 0;
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid rgba(15, 76, 129, .11);
  border-radius: 24px;
  background: rgba(255, 255, 255, .97);
  box-shadow: var(--shadow);
}
.compact-panel { padding-block: 18px; }
.section-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 20px;
}
.section-heading h2, .panel > h2 { margin: 0; font-size: clamp(1.45rem, 3vw, 2rem); }
.section-heading > p { margin: 8px 0 0; color: var(--muted); }

.form-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.form-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
label { display: grid; gap: 6px; color: #334155; font-size: .9rem; font-weight: 800; }
input, select, textarea {
  width: 100%;
  min-height: 44px;
  padding: 9px 11px;
  border: 1px solid var(--border);
  border-radius: 10px;
  outline: none;
  background: #fff;
  color: var(--text);
}
input:focus, select:focus, textarea:focus { border-color: #4e8dbc; box-shadow: 0 0 0 3px rgba(15, 76, 129, .12); }
input[readonly] { background: #f1f5f9; color: var(--muted); }
textarea { min-height: 88px; resize: vertical; }
.checkbox-label { display: flex; flex-direction: row; align-items: center; gap: 8px; align-self: end; min-height: 44px; }
.checkbox-label input { width: 18px; min-height: 18px; accent-color: var(--accent); }
.required-mark { color: var(--danger); }
.optional-fields { margin-top: 18px; padding: 15px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface-soft); }
.optional-fields summary, .compact-panel summary { cursor: pointer; color: var(--accent); font-weight: 900; }
.optional-fields .form-grid { margin-top: 18px; }
.form-note { margin: 17px 0 0; color: var(--muted); font-size: .9rem; }
.form-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }
.button {
  min-height: 42px;
  padding: 9px 16px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-weight: 900;
}
.button.primary { background: var(--accent); color: #fff; }
.button.secondary { border-color: var(--border); background: #fff; color: var(--accent); }
.button.ghost { border-color: rgba(15, 76, 129, .18); background: var(--accent-soft); color: var(--accent); }
.button.danger { border-color: #efb4b0; background: #fff; color: var(--danger); }
.button.full { width: 100%; }
.button:disabled { cursor: not-allowed; opacity: .48; }
.inline-form { display: flex; gap: 12px; align-items: end; margin-top: 16px; }
.inline-form input { max-width: 560px; }
code { display: block; padding: 12px; overflow-x: auto; border-radius: 10px; background: #172033; color: #edf5ff; white-space: nowrap; }

.alert { margin: 18px 0; padding: 13px 16px; border: 1px solid #8bd0aa; border-radius: 12px; background: #effbf4; color: #12623c; font-weight: 800; }
.alert.is-error { border-color: #eda29b; background: #fff2f0; color: #912018; }
.tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 5px;
  border-radius: 13px;
  background: #edf2f7;
}
.tab {
  flex: 0 0 auto;
  padding: 9px 13px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--muted);
  font-weight: 900;
}
.tab span { display: inline-grid; place-items: center; min-width: 22px; height: 22px; margin-left: 4px; border-radius: 99px; background: rgba(15, 76, 129, .1); }
.tab.is-active { background: #fff; color: var(--accent); box-shadow: 0 4px 12px rgba(25, 45, 78, .08); }
.tab-panel { display: none; padding-top: 20px; }
.tab-panel.is-active { display: block; }
.card-list { display: grid; gap: 12px; }
.record-card {
  display: grid;
  grid-template-columns: minmax(190px, .7fr) minmax(0, 1.7fr) auto;
  gap: 18px;
  align-items: center;
  padding: 17px;
  border: 1px solid var(--border);
  border-left: 5px solid var(--call);
  border-radius: 14px;
  background: #fff;
}
.record-card.is-put { border-left-color: var(--put); }
.record-title { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.record-title strong { font-size: 1.05rem; }
.type-badge, .status-badge {
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--call-soft);
  color: var(--call);
  font-size: .75rem;
  font-weight: 900;
}
.is-put .type-badge { background: var(--put-soft); color: var(--put); }
.status-badge { background: #f1f5f9; color: var(--muted); }
.record-meta { display: grid; grid-template-columns: repeat(4, minmax(90px, 1fr)); gap: 9px; }
.record-meta div { min-width: 0; }
.record-meta span, .record-meta strong { display: block; }
.record-meta span { color: var(--muted); font-size: .72rem; font-weight: 700; }
.record-meta strong { overflow-wrap: anywhere; font-size: .94rem; }
.record-actions { display: flex; gap: 7px; flex-wrap: wrap; justify-content: flex-end; }
.profit { color: var(--call) !important; }
.loss { color: var(--put) !important; }
.empty-state { padding: 28px 16px; border: 1px dashed var(--border); border-radius: 12px; color: var(--muted); text-align: center; }

.analytics-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.metric-card { padding: 16px; border: 1px solid var(--border); border-radius: 13px; background: var(--surface-soft); }
.metric-card span, .metric-card strong { display: block; }
.metric-card span { color: var(--muted); font-size: .78rem; font-weight: 800; }
.metric-card strong { margin-top: 4px; font-size: 1.35rem; }
.analysis-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 24px; }
.breakdown-table { width: 100%; border-collapse: collapse; }
.breakdown-table th, .breakdown-table td { padding: 9px; border-bottom: 1px solid var(--border); text-align: left; }
.stack-form { display: grid; gap: 10px; }
.skip-list { display: grid; gap: 8px; margin-top: 14px; }
.skip-item { padding: 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-soft); }
.skip-item p { margin: 4px 0; }

.chart-controls { display: flex; gap: 8px; flex-wrap: wrap; }
.chart-wrap { position: relative; min-height: 340px; padding: 12px; border: 1px solid var(--border); border-radius: 14px; }
.chart-wrap canvas { width: 100% !important; max-height: 410px; }
.position-detail { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin-top: 16px; }
.detail-item { padding: 12px; border-radius: 10px; background: var(--surface-soft); }
.detail-item span, .detail-item strong { display: block; }
.detail-item span { color: var(--muted); font-size: .75rem; }
.factor-analysis { margin-top: 18px; }
.factor-item { margin: 8px 0; padding: 12px 14px; border-left: 4px solid var(--warning); border-radius: 0 10px 10px 0; background: var(--warning-soft); }
.factor-item p { margin: 0; }
.danger-zone { border-color: #efc3bf; }

dialog {
  width: min(680px, calc(100% - 24px));
  max-height: 92vh;
  padding: 24px;
  overflow-y: auto;
  border: 0;
  border-radius: 20px;
  box-shadow: 0 28px 90px rgba(15, 23, 42, .28);
}
dialog::backdrop { background: rgba(15, 23, 42, .55); backdrop-filter: blur(3px); }
.dialog-heading { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 16px; }
.dialog-heading h2 { margin: 0; }
.icon-button { width: 38px; height: 38px; border: 0; border-radius: 99px; background: #edf2f7; color: var(--text); font-size: 1.4rem; }
.quote-summary, .calculation-box { margin: 12px 0; padding: 13px; border-radius: 11px; background: var(--accent-soft); }
.warning-text { padding: 10px 12px; border-radius: 10px; background: var(--warning-soft); color: #7a3a08; font-weight: 800; }

footer { padding: 32px 16px 46px; color: var(--muted); text-align: center; font-size: .88rem; }
footer p { margin: 3px 0; }
.login-page { min-height: 100vh; display: grid; place-items: center; padding: 18px; }
.login-card { width: min(460px, 100%); padding: 32px; border: 1px solid var(--border); border-radius: 24px; background: #fff; box-shadow: var(--shadow); }
.login-card img { border-radius: 16px; }
.login-card h1 { margin: 4px 0 12px; }
.login-card form { display: grid; gap: 14px; margin: 22px 0; }

@media (max-width: 980px) {
  .form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .record-card { grid-template-columns: 1fr; }
  .record-actions { justify-content: flex-start; }
  .analytics-grid, .position-detail { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  .paper-banner { font-size: .8rem; }
  .topbar { align-items: flex-start; }
  .topbar nav a { display: none; }
  .hero { grid-template-columns: 1fr; }
  .hero-rules { display: none !important; }
  .shell { width: min(100% - 20px, 1240px); }
  .panel { padding: 18px 14px; border-radius: 17px; }
  .section-heading { display: block; }
  .section-heading > .button, .section-heading > .chart-controls { margin-top: 12px; }
  .form-grid, .form-grid.two { grid-template-columns: 1fr; }
  .record-meta { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .analysis-columns { grid-template-columns: 1fr; }
  .inline-form { align-items: stretch; flex-direction: column; }
  .chart-wrap { min-height: 280px; }
  dialog { padding: 18px 14px; }
}

@media (max-width: 420px) {
  .analytics-grid, .position-detail { grid-template-columns: 1fr; }
  .record-meta { grid-template-columns: 1fr 1fr; }
  .form-actions .button { flex: 1 1 auto; }
}