:root {
  --bg: #eef8ef;
  --panel: #ffffff;
  --ink: #050505;
  --muted: #050505;
  --line: #cfe3d4;
  --teal: #ef1f2d;
  --teal-soft: #fff1f2;
  --blue: #0877c9;
  --orange: #18a92f;
  --green: #18a92f;
  --red: #ef1f2d;
  --shadow: 0 16px 38px rgba(24, 169, 47, 0.14);
}

* { box-sizing: border-box; }

html {
  max-width: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  min-height: 100vh;
  background: #eef8ef;
  color: var(--ink);
  font-family: "Poppins", "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  max-width: 100%;
  overflow-x: hidden;
  overflow-wrap: anywhere;
}

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

@keyframes loginRise {
  from { opacity: 0; transform: translateY(18px) scale(0.985); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes softFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes sheen {
  from { transform: translateX(-120%) rotate(12deg); }
  to { transform: translateX(180%) rotate(12deg); }
}

@keyframes gridDrift {
  0% { background-position: 0 0, 0 0; transform: rotate(-8deg) translateY(0); }
  50% { background-position: 36px 18px, 18px 36px; transform: rotate(-8deg) translateY(-8px); }
  100% { background-position: 72px 36px, 36px 72px; transform: rotate(-8deg) translateY(0); }
}

@keyframes topbarReveal {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes viewReveal {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

h1, h2, h3, p { margin: 0; }
button, input, select { font: inherit; }
button { border: 0; cursor: pointer; }

.hidden, .is-locked { display: none !important; }

.login-screen {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  overflow-y: auto;
  padding: 24px;
  background: #ffffff;
  z-index: 20;
}

.login-card {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(420px, 0.72fr);
  gap: 0;
  width: min(100%, 1180px);
  min-height: 560px;
  height: auto;
  margin: auto 0;
  overflow: hidden;
  border: 1px solid rgba(5, 5, 5, 0.10);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 24px 70px rgba(5, 5, 5, 0.12);
  padding: 0;
  animation: loginRise 620ms ease both;
}

.login-features {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 0;
  border-right: 1px solid rgba(255, 255, 255, 0.22);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.14), transparent 46%),
    linear-gradient(160deg, #12682b 0%, #1c8f3b 55%, #48ae5c 100%);
  color: #ffffff;
  padding: 58px 40px 34px;
  overflow: hidden;
}

.login-features .eyebrow {
  margin-top: 0;
}

.login-features::after {
  content: "";
  position: absolute;
  right: -90px;
  bottom: -90px;
  width: 300px;
  height: 300px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.16) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.16) 1px, transparent 1px);
  background-size: 36px 36px;
  animation: gridDrift 12s linear infinite;
  transform: rotate(-8deg);
}

.login-features::before {
  content: "";
  position: absolute;
  inset: -40% auto -40% -35%;
  width: 28%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.20), transparent);
  animation: sheen 5.5s ease-in-out infinite;
}

.login-features > * {
  position: relative;
  z-index: 1;
}

.login-feature-main {
  margin-top: 0;
}

.login-features .eyebrow {
  color: #ffffff;
  opacity: 0.86;
}

.login-features h2 {
  max-width: 560px;
  margin-top: 3px;
  font-size: clamp(1.55rem, 2.05vw, 2.35rem);
  line-height: 1.08;
  letter-spacing: 0;
  color: #ffffff;
}

.feature-list {
  display: grid;
  gap: 8px;
  margin-top: 28px;
}

.thesis-credit {
  margin-top: 24px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  font-size: 0.88rem;
  line-height: 1.35;
  opacity: 1;
}

.thesis-credit strong {
  display: inline-block;
  margin-top: 3px;
  color: #ffffff;
  font-size: 0.95rem;
}

.feature-item {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  align-items: start;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.12);
  padding: 11px 12px;
  box-shadow: 0 16px 34px rgba(8, 83, 30, 0.18);
  transition: transform 180ms ease, background 180ms ease;
}

.feature-item:hover {
  background: rgba(255, 255, 255, 0.20);
  transform: translateY(-3px);
}

.feature-item > span {
  display: grid;
  place-items: center;
  width: 36px;
  height: 34px;
  border-radius: 50%;
  background: #ffffff;
  color: #0f6d27;
  font-size: 0.8rem;
  font-weight: 700;
}

.feature-item strong {
  display: block;
  margin-bottom: 2px;
  color: #ffffff;
}

.feature-item p {
  color: #ffffff;
  opacity: 0.82;
  font-size: 0.84rem;
  line-height: 1.32;
}

.login-panel {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 34px 40px;
  background:
    linear-gradient(180deg, rgba(244, 255, 246, 0.96), #ffffff);
}

.login-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 14px;
  width: 100%;
}

.login-icon-wrap {
  display: grid;
  place-items: center;
  width: 188px;
  height: 96px;
  flex: 0 0 auto;
  border: 1px solid rgba(24, 169, 47, 0.20);
  border-radius: 18px;
  background: white;
  box-shadow: 0 16px 36px rgba(24, 169, 47, 0.16);
  animation: softFloat 6.5s ease-in-out infinite;
}

.login-icon {
  width: 172px;
  height: 82px;
  object-fit: contain;
}

.login-brand > :not(.login-icon-wrap) {
  display: none !important;
}
.login-card h1 { font-size: 1.95rem; line-height: 1; color: #050505; }
.login-copy { color: #050505; line-height: 1.55; margin: 0 0 20px; }
.login-form { display: grid; gap: 10px; }

.login-form:not(.hidden) {
  animation: loginRise 360ms ease both;
}

.preference-bar {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0 0 18px;
}

.preference-bar,
.pref-field.compact {
  display: none !important;
}

.pref-field {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.pref-field span {
  color: #050505;
  font-size: 0.78rem;
  font-weight: 700;
}

.pref-field select {
  min-height: 38px;
  border-color: #ccdcd1;
  background: #ffffff;
  font-size: 0.86rem;
}

.pref-field.compact {
  align-items: center;
  grid-template-columns: auto minmax(64px, 86px);
  gap: 6px;
}

.pref-field.compact span {
  font-size: 0.74rem;
}

.pref-field.compact select {
  min-height: 32px;
  padding: 5px 8px;
}

.login-form .field span {
  font-weight: 600;
  color: #050505;
}

.login-form input {
  min-height: 44px;
  background: #fbfcfa;
  border-color: #cdd5ce;
  padding: 11px 13px;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.login-form input:focus {
  transform: translateY(-1px);
}

.auth-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  margin-top: 4px;
}

.auth-link {
  min-height: 34px;
  border-radius: 6px;
  background: transparent;
  color: #0f6d27;
  font-weight: 800;
  padding: 4px 6px;
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 4px;
  transition: background 160ms ease, color 160ms ease, transform 160ms ease;
}

.auth-link:hover,
.auth-link:focus-visible {
  background: #edf8ef;
  color: #050505;
  transform: translateY(-1px);
}

.auth-message {
  min-height: 20px;
  color: var(--red);
  font-size: 0.88rem;
  font-weight: 700;
}

.auth-message.success {
  color: var(--green);
}

.install-card-btn {
  width: 100%;
  min-height: 46px;
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  color: #050505;
  font-weight: 700;
}

.install-btn {
  white-space: nowrap;
}

.app-shell {
  min-height: 100vh;
  padding: 0 24px 20px;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 18% -8%, rgba(24, 169, 47, 0.10), transparent 34%),
    linear-gradient(180deg, #f7fbf8 0%, #eef3f0 100%);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: 220px minmax(420px, 1fr) auto;
  gap: 6px;
  align-items: center;
  max-width: 1500px;
  margin: 0 auto 18px;
  border-bottom: 1px solid rgba(5, 5, 5, 0.08);
  background:
    linear-gradient(180deg, rgba(247, 251, 248, 0.96), rgba(247, 251, 248, 0.84));
  box-shadow: 0 12px 28px rgba(5, 5, 5, 0.05);
  padding: 8px 18px;
  backdrop-filter: blur(18px);
  animation: topbarReveal 420ms ease both;
}

.brand {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  min-width: 0;
}

.brand-icon {
  width: 172px;
  height: 82px;
  flex: 0 0 auto;
  object-fit: contain;
  background: transparent;
  filter: drop-shadow(0 10px 18px rgba(24, 169, 47, 0.12));
}

.mobile-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  width: 40px;
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  color: var(--ink);
  font-weight: 600;
  padding: 7px;
}

.mobile-nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--ink);
}

.nav-backdrop {
  display: none;
}

.bottom-nav {
  display: none;
}

.nav-tabs {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  background: transparent;
  padding: 0;
  min-width: 0;
  transform: translateX(4px);
}

.nav-tab {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  border-radius: 0;
  background: transparent;
  color: #050505;
  padding: 8px 6px;
  font-weight: 700;
  font-size: 0.88rem;
  text-align: center;
  white-space: normal;
  overflow-wrap: anywhere;
  transition: color 160ms ease, transform 160ms ease;
}

.nav-tab::after {
  content: "";
  position: absolute;
  right: 10px;
  bottom: 3px;
  left: 10px;
  height: 2px;
  background: var(--teal);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.nav-tab.is-active {
  background: transparent;
  color: #0f6d27;
}

.nav-tab.is-active::after,
.nav-tab:hover::after {
  transform: scaleX(1);
}

.nav-tab:hover {
  color: #0f6d27;
  background: transparent;
  transform: translateY(-1px);
}

.user-box {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: nowrap;
  gap: 8px;
  min-height: 44px;
  border: 0;
  border-radius: 0;
  background: transparent;
  padding-left: 18px;
  color: #050505;
  font-weight: 700;
  font-size: 0.88rem;
  min-width: 0;
}

.profile-picker {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  cursor: pointer;
  border-radius: 8px;
  padding: 4px 9px 4px 4px;
  background: rgba(255, 255, 255, 0.72);
  transition: background 160ms ease, transform 160ms ease;
}

.profile-picker:hover {
  background: #ffffff;
  transform: translateY(-1px);
}

.profile-picker input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.profile-avatar {
  display: grid;
  place-items: center;
  width: 60px;
  height: 60px;
  border: 2px solid #ffffff;
  border-radius: 50%;
  background: var(--teal);
  background-position: center;
  background-size: cover;
  box-shadow: 0 0 0 1px #b9dec2;
  color: #ffffff;
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: 0;
}

.profile-action {
  color: #0f6d27;
  font-size: 0.78rem;
  font-weight: 800;
  white-space: nowrap;
}

.profile-picker.has-photo .profile-action {
  display: none;
}

.profile-avatar.has-photo {
  color: transparent;
}

.profile-picker::after {
  content: "+";
  position: absolute;
  left: 46px;
  bottom: 4px;
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  border: 2px solid #ffffff;
  border-radius: 50%;
  background: var(--teal);
  color: #ffffff;
  font-size: 0.86rem;
  font-weight: 800;
  line-height: 1;
}

.mobile-menu-logout {
  display: none;
}

.view {
  display: none;
  max-width: 1500px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
  overflow-x: hidden;
}

.view.is-active {
  display: block;
  animation: viewReveal 260ms ease both;
}

.about-page {
  display: grid;
  gap: 22px;
  padding: 22px 0 34px;
}

.about-hero {
  max-width: 900px;
  padding: 18px 0 6px;
}

.about-hero h2 {
  max-width: 820px;
  margin: 6px 0 12px;
  color: #050505;
  font-size: clamp(1.55rem, 2.1vw, 2.2rem);
  line-height: 1.12;
  font-weight: 800;
}

.about-hero p {
  max-width: 860px;
  color: #2d3f45;
  font-size: 1rem;
  line-height: 1.75;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.about-card {
  position: relative;
  overflow: hidden;
  min-height: 260px;
  border: 1px solid rgba(5, 5, 5, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(247, 251, 248, 0.86));
  padding: 22px;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.about-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 42px rgba(5, 5, 5, 0.08);
}

.about-card span {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 18px;
  background: var(--teal);
  color: #ffffff;
  font-size: 0.84rem;
  font-weight: 800;
}

.about-card h3 {
  margin-bottom: 10px;
  color: #050505;
  font-size: 1.08rem;
}

.about-card p {
  color: #2d3f45;
  line-height: 1.62;
}

.designer-card {
  background:
    linear-gradient(135deg, rgba(24, 169, 47, 0.10), rgba(255, 255, 255, 0.92) 58%),
    #ffffff;
}

.page-head,
.section-title,
.field,
.about-card,
.metric-card,
.recommend-card,
.expert-row,
.alternative-row,
.history-item,
.document-item,
.fixed-list span,
.detail-grid span,
.range-note span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.supplemental-section {
  margin-top: 8px;
}

.documents-list {
  display: grid;
  gap: 14px;
  border: 1px solid #d7e2dc;
  border-radius: 12px;
  background: #ffffff;
  padding: 16px;
}

.document-group {
  display: grid;
  gap: 10px;
}

.document-group + .document-group {
  border-top: 1px solid #e5eee8;
  padding-top: 12px;
}

.document-group h3 {
  color: #2d3f45;
  font-size: 0.98rem;
}

.document-items {
  display: grid;
  gap: 10px;
}

.document-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  border: 1px solid #d7e2dc;
  border-radius: 10px;
  background: #f8faf8;
  padding: 12px;
}

.document-item strong,
.document-item p,
.document-item small {
  display: block;
}

.document-item strong {
  color: var(--ink);
  font-size: 0.92rem;
}

.document-item p {
  margin-top: 4px;
  color: #2d3f45;
  font-size: 0.86rem;
  line-height: 1.45;
}

.document-item small {
  margin-top: 5px;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.document-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  white-space: nowrap;
}

.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 10px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  padding: 8px 2px 10px;
}

.page-head h2 {
  font-size: 1.42rem;
  line-height: 1.25;
  margin-top: 5px;
  font-weight: 600;
}

.page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.eyebrow {
  color: var(--teal);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(320px, 500px) 1fr;
  gap: 16px;
}

.form-workspace {
  grid-template-columns: 1fr;
}

.panel, .results {
  border: 0;
  border-radius: 0;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: none;
}

.inputs-panel {
  padding: 14px 18px 18px;
  max-height: none;
  overflow: auto;
}

.full-form-panel {
  min-height: calc(100vh - 210px);
}

.results {
  padding: 22px;
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 16px 0 12px;
  border-bottom: 0;
  color: #2d3f45;
  padding-bottom: 2px;
  font-weight: 700;
}

.section-title:first-child {
  margin-top: 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(180px, 1fr));
  gap: 12px;
}

.grid.compact { grid-template-columns: repeat(3, minmax(220px, 1fr)); }

.model-choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 1fr));
  gap: 12px;
  margin-bottom: 8px;
}

.model-choice-card {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 10px;
  align-items: start;
  min-width: 0;
  border: 1px solid #d7e2dc;
  border-radius: 8px;
  background: #ffffff;
  padding: 12px;
}

.model-choice-card input {
  width: 18px;
  min-height: 18px;
  margin-top: 2px;
  accent-color: var(--teal);
}

.model-choice-card strong,
.model-choice-card small {
  display: block;
}

.model-choice-card strong {
  color: var(--ink);
  font-size: 0.94rem;
}

.model-choice-card small {
  margin-top: 3px;
  color: var(--muted);
  line-height: 1.4;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.field span, .metric-card span, .bar-row span, .card-label {
  color: var(--muted);
  font-size: 0.82rem;
}

input, select {
  width: 100%;
  min-width: 0;
  min-height: 42px;
  border: 1px solid #ccdcd1;
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  padding: 9px 11px;
  font-size: 0.92rem;
}

input:focus, select:focus {
  outline: 3px solid rgba(24, 169, 47, 0.18);
  border-color: var(--teal);
}

.primary, .secondary {
  width: 100%;
  min-height: 40px;
  margin-top: 8px;
  border-radius: 8px;
  color: white;
  font-weight: 700;
}

.primary { background: var(--teal); }
.secondary { background: var(--blue); }

.primary {
  box-shadow: 0 12px 26px rgba(24, 169, 47, 0.24);
  transition: transform 160ms ease, box-shadow 160ms ease, filter 160ms ease;
}

.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(24, 169, 47, 0.30);
}

.primary:hover,
.secondary:hover {
  filter: brightness(0.96);
  transform: translateY(-1px);
}

.ghost, .outline {
  min-height: 36px;
  border-radius: 6px;
  font-weight: 600;
  padding: 7px 10px;
  transition: background 160ms ease, color 160ms ease, transform 160ms ease;
}

.ghost {
  color: var(--teal);
  background: transparent;
}

.outline {
  border: 1px solid var(--line);
  color: var(--teal);
  background: white;
}

.ghost:hover,
.outline:hover {
  background: #ffffff;
  transform: translateY(-1px);
}

.icon-logout {
  display: inline-grid;
  place-items: center;
  width: 42px;
  min-width: 42px;
  height: 42px;
  padding: 0;
  color: var(--red);
}

.menu-logout {
  margin-left: 4px;
}

.menu-logout::after {
  display: none;
}

.icon-logout svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.outline.danger { color: var(--red); }

.status-pill {
  flex: 0 0 auto;
  border-radius: 999px;
  background: #eef8f0;
  color: var(--teal);
  padding: 9px 13px;
  font-weight: 700;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.metric-card, .recommend-card {
  position: relative;
  overflow: hidden;
  border: 1px solid #d7e2dc;
  border-radius: 12px;
  background: #ffffff;
  padding: 18px 18px 16px;
  box-shadow: 0 10px 24px rgba(36, 50, 56, 0.055);
}

.metric-card::before,
.recommend-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: var(--teal);
}

.metric-card.solid::before { background: var(--blue); }
.metric-card.gas::before { background: var(--red); }
.metric-card.sum::before { background: #243238; }

.metric-card strong, .recommend-card strong {
  display: block;
  margin-top: 12px;
  font-size: 1.86rem;
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.metric-card small, .recommend-card small {
  color: var(--muted);
  font-weight: 600;
}

.metric-card span,
.recommend-card .card-label {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  border-radius: 999px;
  background: #f2f6f3;
  color: #4d5f65;
  padding: 5px 9px;
  font-size: 0.78rem;
  font-weight: 700;
}

.metric-card.solid strong { color: var(--blue); }
.metric-card.liquid strong, .recommend-card strong { color: var(--teal); }
.metric-card.gas strong, .max-card strong { color: var(--red); }
.metric-card.sum strong { color: var(--teal); }

.visual-band {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  gap: 16px;
  margin-top: 12px;
}

.ternary-bars, .expert-panel, .alternatives, .history-panel {
  border: 1px solid #d7e2dc;
  border-radius: 12px;
  background: #ffffff;
  padding: 18px;
  box-shadow: 0 10px 22px rgba(36, 50, 56, 0.045);
}

.expert-panel h3 {
  margin-bottom: 12px;
  color: #2d3f45;
  font-size: 1rem;
}

.ternary-bars::before,
.expert-panel h3 {
  display: block;
  border-bottom: 1px solid #e5eee8;
  padding-bottom: 10px;
}

.ternary-bars::before {
  content: "Répartition des rendements";
  color: #2d3f45;
  font-size: 1rem;
  font-weight: 700;
}

.bar-row {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 12px;
  align-items: center;
  margin: 18px 0;
}

.bar-track, .progress-track {
  height: 14px;
  border-radius: 999px;
  background: #edf3ef;
  overflow: hidden;
}

.bar, .progress-fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  transition: width 320ms ease;
}

.solid-bar { background: var(--blue); }
.liquid-bar { background: var(--teal); }
.gas-bar { background: var(--red); }
.progress-fill { background: var(--blue); }

.expert-list, .condition-list, .alternative-list, .history-list {
  display: grid;
  gap: 10px;
  margin-top: 12px;
}

.fixed-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.fixed-list span, .detail-grid span, .range-note span {
  border-radius: 999px;
  border: 1px solid #dce8df;
  background: #ffffff;
  color: var(--muted);
  padding: 7px 10px;
  font-size: 0.82rem;
}

.fixed-list b, .detail-grid b {
  color: var(--ink);
  font-weight: 600;
}

.result-context {
  border: 1px solid #d7e2dc;
  border-radius: 12px;
  background: #f8faf8;
  padding: 14px;
}

.result-context:empty {
  display: none;
}

.model-used {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.9rem;
}

.collapsible-section {
  margin-top: 12px;
}

.collapsible-toggle {
  width: 100%;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid #d7e2dc;
  border-radius: 8px;
  background: #ffffff;
  color: #2d3f45;
  padding: 10px 12px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 8px 18px rgba(36, 50, 56, 0.035);
}

.collapsible-toggle:hover,
.collapsible-toggle:focus-visible {
  border-color: var(--teal);
  outline: none;
}

.collapsible-toggle b,
.icon-expand {
  width: 28px;
  height: 28px;
  min-width: 28px;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  background: var(--teal);
  color: #ffffff;
  font-size: 1.05rem;
  line-height: 1;
}

.collapsible-content {
  margin-top: 10px;
}

.model-used strong {
  color: var(--ink);
}

.model-used:empty {
  display: none;
}

.cleaning-comparison {
  margin-top: 12px;
  border: 1px solid #d7e2dc;
  border-radius: 10px;
  background: #ffffff;
  padding: 16px;
}

.comparison-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.comparison-head h3 {
  font-size: 1rem;
}

.comparison-head p {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.45;
  margin-top: 4px;
}

.comparison-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.comparison-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.comparison-legend i {
  width: 10px;
  height: 10px;
  border-radius: 999px;
}

.before-dot { background: var(--red); }
.after-dot { background: var(--teal); }

.comparison-list {
  display: grid;
  gap: 9px;
  margin-top: 12px;
}

.comparison-row {
  display: grid;
  grid-template-columns: minmax(150px, 0.36fr) minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  border: 1px solid #d7e2dc;
  border-radius: 10px;
  background: white;
  padding: 10px;
}

.comparison-row.changed {
  border-color: rgba(239, 31, 45, 0.34);
  background: #fff8f8;
}

.comparison-label {
  display: grid;
  gap: 5px;
  min-width: 0;
}

.comparison-label strong {
  overflow-wrap: anywhere;
  font-size: 0.88rem;
}

.comparison-label em {
  width: fit-content;
  border-radius: 999px;
  background: #eef4f8;
  color: var(--muted);
  padding: 4px 7px;
  font-size: 0.76rem;
  font-style: normal;
  font-weight: 700;
}

.comparison-row.changed .comparison-label em {
  background: #fff1f2;
  color: #b91c1c;
}

.comparison-bars {
  display: grid;
  gap: 7px;
}

.comparison-line {
  display: grid;
  grid-template-columns: 46px 1fr 74px;
  gap: 8px;
  align-items: center;
}

.comparison-line span, .comparison-line small {
  color: var(--muted);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
}

.comparison-line small {
  text-align: right;
}

.comparison-track {
  height: 12px;
  border-radius: 999px;
  background: #e5e7eb;
  overflow: hidden;
}

.comparison-track b {
  display: block;
  min-width: 3px;
  height: 100%;
  border-radius: 999px;
}

.before-bar {
  background: var(--red);
  box-shadow: 0 0 0 1px rgba(220, 38, 38, 0.12) inset;
}

.after-bar {
  background: var(--teal);
  box-shadow: 0 0 0 1px rgba(22, 163, 74, 0.14) inset;
}

.composition-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  width: 100%;
}

.composition-line strong {
  align-self: center;
  font-size: 0.84rem;
}

.expert-row {
  display: grid;
  grid-template-columns: 1fr repeat(3, 70px);
  gap: 10px;
  align-items: center;
  border: 1px solid #d7e2dc;
  border-radius: 10px;
  background: #ffffff;
  padding: 11px 12px;
}

.expert-row:nth-child(even) {
  background: #f8faf8;
}

.expert-row strong {
  color: #2d3f45;
  font-size: 0.9rem;
}

.expert-row span {
  border-radius: 999px;
  background: #f2f6f3;
  color: #4d5f65;
  padding: 5px 7px;
  text-align: right;
  font-size: 0.82rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.progress-box {
  margin-bottom: 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: white;
  padding: 12px;
}

.progress-box span {
  display: block;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 8px;
}

.recommend-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.condition-item {
  display: grid;
  grid-template-columns: 1fr 96px;
  gap: 10px;
  align-items: center;
  border-top: 1px solid #e5eee8;
  padding: 10px 0 0;
}

.condition-item span {
  color: var(--muted);
  font-size: 0.86rem;
}

.condition-item strong {
  color: var(--ink);
  font-size: 0.88rem;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.yield-line {
  margin-top: 12px;
  border: 1px solid #d7e2dc;
  border-radius: 10px;
  background: #f8faf8;
  color: var(--muted);
  padding: 10px;
  font-size: 0.86rem;
  line-height: 1.45;
}

.alternatives { margin-top: 12px; }

.alternative-row, .history-item {
  display: grid;
  grid-template-columns: 34px repeat(6, minmax(0, 1fr)) auto;
  gap: 8px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  padding: 10px;
}

.alternative-header {
  background: #e9f8ec;
  border-color: #b8dec1;
  color: #050505;
  font-weight: 800;
}

.alternative-header span,
.alternative-header strong {
  color: #050505;
  font-size: 0.82rem;
}

.history-item {
  grid-template-columns: 1fr auto;
  border-color: #d7e2dc;
  border-radius: 10px;
  box-shadow: 0 6px 14px rgba(36, 50, 56, 0.035);
}

.history-details {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  border-top: 1px solid #e3ece6;
  margin-top: 4px;
  padding-top: 12px;
}

.history-details h4, .alternative-details h4 {
  margin: 8px 0;
  font-size: 0.9rem;
}

.history-detail-section {
  min-width: 0;
}

.history-detail-section h4 {
  margin: 0 0 8px;
  color: #2d3f45;
  font-size: 0.88rem;
}

.history-table-wrap {
  overflow-x: auto;
  border: 1px solid #d7e2dc;
  border-radius: 10px;
  background: white;
}

.history-detail-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
}

.history-detail-table tr + tr {
  border-top: 1px solid #e8f0ea;
}

.history-detail-table tr:nth-child(even) {
  background: #f8faf8;
}

.history-detail-table th,
.history-detail-table td {
  padding: 9px 10px;
  vertical-align: top;
}

.history-detail-table th {
  width: 46%;
  color: var(--muted);
  font-weight: 600;
  text-align: left;
}

.history-detail-table td {
  color: var(--ink);
  font-weight: 600;
  text-align: right;
  overflow-wrap: anywhere;
}

.alternative-details {
  grid-column: 1 / -1;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

.alternative-detail-btn, .history-detail-btn {
  white-space: nowrap;
}

.detail-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.history-item span, .alternative-row span {
  color: var(--muted);
  font-size: 0.88rem;
}

.history-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.history-metrics span {
  border-radius: 999px;
  background: #f2f6f3;
  padding: 6px 8px;
}

.mixture-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdff;
  margin: 12px 0;
  padding: 12px;
}

.mixture-grid {
  grid-template-columns: repeat(4, minmax(120px, 1fr));
}

.inverse-fixed-grid {
  margin: 12px 0;
}

.decision-field {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  min-width: 0;
}

.muted-field {
  opacity: 0.55;
}

.show-more {
  margin-top: 10px;
}

.range-note {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdff;
  padding: 12px;
}

.range-note strong {
  width: 100%;
}

.range-note p {
  width: 100%;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.decision-support {
  margin-top: 12px;
  border: 1px solid #d7e2dc;
  border-radius: 12px;
  background: #ffffff;
  padding: 16px;
  box-shadow: 0 8px 18px rgba(36, 50, 56, 0.035);
}

.decision-support .collapsible-content > p {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
  margin-top: 6px;
}

.decision-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 10px;
}

.reactor-decision {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.decision-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  padding: 10px;
}

.decision-card > span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  margin-bottom: 6px;
}

.decision-card strong {
  display: block;
  color: var(--orange);
  margin-bottom: 8px;
}

.decision-subtitle {
  margin-top: 16px;
  border-top: 1px solid #e5eee8;
  padding-top: 14px;
  color: #2d3f45;
}

.reactor-catalyst-grid {
  grid-template-columns: 1fr;
  gap: 12px;
}

.reactor-catalyst-card {
  display: grid;
  gap: 10px;
  border: 1px solid #d7e2dc;
  border-radius: 12px;
  background: #ffffff;
  padding: 12px;
}

.reactor-catalyst-card header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.reactor-catalyst-card header span {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
}

.reactor-catalyst-card header strong {
  color: #2d3f45;
  font-size: 0.96rem;
  text-align: right;
}

.reactor-table-wrap {
  overflow-x: auto;
  border: 1px solid #d7e2dc;
  border-radius: 10px;
}

.reactor-catalyst-table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  font-size: 0.86rem;
}

.reactor-catalyst-table th,
.reactor-catalyst-table td {
  padding: 10px;
  text-align: right;
  white-space: nowrap;
}

.reactor-catalyst-table th:first-child,
.reactor-catalyst-table td:first-child {
  text-align: left;
}

.reactor-catalyst-table thead {
  background: #f2f6f3;
  color: #4d5f65;
}

.reactor-catalyst-table th {
  font-weight: 700;
}

.reactor-catalyst-table tbody tr + tr {
  border-top: 1px solid #e5eee8;
}

.reactor-catalyst-table tbody tr:nth-child(even) {
  background: #f8faf8;
}

.empty {
  color: var(--muted);
  padding: 10px 0;
}

.app-footer {
  display: block;
  max-width: 1500px;
  margin: 24px auto 0;
  border-top: 1px solid rgba(5, 5, 5, 0.08);
  background: transparent;
  color: var(--muted);
  padding: 14px 0 0;
  font-size: 0.82rem;
  text-align: center;
}

.app-footer strong {
  color: var(--ink);
  font-weight: 600;
}

@media (max-width: 1120px) {
  .login-card {
    grid-template-columns: 1fr;
    width: min(100%, 520px);
    min-height: auto;
    padding: 0;
  }
  .login-features {
    display: block;
    min-height: auto;
    border-right: 0;
    padding: 24px 24px 18px;
  }
  .login-feature-main {
    margin-top: 0;
  }
  .login-features h2 {
    font-size: 1.8rem;
  }
  .feature-list {
    grid-template-columns: 1fr;
    gap: 8px;
    margin-top: 14px;
  }
  .feature-item {
    grid-template-columns: 32px 1fr;
    padding: 10px;
  }
  .feature-item > span {
    width: 28px;
    height: 28px;
    font-size: 0.7rem;
  }
  .feature-item p {
    display: none;
  }
  .thesis-credit {
    margin-top: 12px;
    padding: 9px 10px;
    font-size: 0.78rem;
  }
  .login-panel { padding: 24px; }
  .topbar { grid-template-columns: 1fr auto; }
  .brand {
    grid-column: 1;
    border-right: 0;
    padding-right: 0;
  }
  .mobile-nav-toggle { display: inline-flex; grid-column: 2; }
  .nav-tabs {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 40;
    display: grid;
    align-content: start;
    grid-template-columns: 1fr;
    width: 70vw;
    max-width: 360px;
    min-width: 250px;
    height: 100vh;
    padding: 18px;
    border: 0;
    border-right: 1px solid var(--line);
    border-radius: 0;
    background: white;
    box-shadow: 18px 0 42px rgba(15, 23, 42, 0.14);
    transform: translateX(-105%);
    transition: transform 220ms ease;
  }
  .nav-tabs::before {
    content: "Navigation";
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    margin-bottom: 12px;
    text-transform: uppercase;
  }
  .nav-tabs.is-open { transform: translateX(0); }
  .nav-tab {
    justify-content: flex-start;
    text-align: left;
    width: 100%;
  }
  .mobile-menu-logout {
    display: inline-flex;
    margin-top: 8px;
    border: 1px solid var(--line);
    color: var(--red);
  }
  .nav-backdrop {
    position: fixed;
    inset: 0;
    z-index: 35;
    display: block;
    background: rgba(15, 23, 42, 0.38);
  }
  .user-box { display: none; }
  .workspace { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .inputs-panel { max-height: none; }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid, .grid.compact, .model-choice-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  body { font-size: 14px; }
  .app-shell { padding: 0 8px 74px; }
  .panel, .results, .login-card { border-radius: 8px; }
  .login-screen {
    place-items: center;
    padding: 12px;
    background: #f4fbf5;
    overflow-y: auto;
  }
  .login-card {
    width: min(100%, 430px);
    max-height: none;
    height: auto;
    margin: auto;
    border-radius: 18px;
    padding: 0;
    box-shadow: 0 18px 48px rgba(24, 169, 47, 0.16);
  }
  .login-features {
    display: none;
  }
  .login-panel {
    padding: 18px;
    background: #ffffff;
  }
  .login-brand {
    justify-content: center;
    text-align: center;
    gap: 10px;
    margin-bottom: 12px;
  }
  .login-icon-wrap { width: 148px; height: 74px; border-radius: 12px; }
  .login-icon { width: 132px; height: 62px; transform: none; }
  .login-copy { display: none; }
  .login-form { gap: 10px; }
  .login-form input, input, select { min-height: 42px; padding: 9px 10px; }
  .primary, .secondary { min-height: 42px; margin-top: 6px; }
  .auth-links { justify-content: center; }
  .auth-link { min-height: 26px; font-size: 0.84rem; }
  .auth-message { min-height: 16px; font-size: 0.78rem; }
  .preference-bar { grid-template-columns: 1fr; gap: 8px; }
  .field { gap: 4px; }
  .field span, .metric-card span, .bar-row span, .card-label { font-size: 0.78rem; }
  .install-card-btn { min-height: 38px; margin-top: 10px; }
  .topbar {
    gap: 8px;
    margin-top: 0;
    padding: 4px 10px 6px;
    position: sticky;
    top: 0;
  }
  .brand-icon { width: 132px; height: 56px; }
  .page-head { align-items: flex-start; flex-direction: column; }
  .page-actions { justify-content: flex-start; width: 100%; }
  .page-head h2 { font-size: 1.15rem; }
  .panel, .results { box-shadow: none; }
  .view {
    padding-left: 10px;
    padding-right: 10px;
  }
  .inputs-panel, .results, .ternary-bars, .expert-panel, .alternatives, .history-panel {
    padding: 12px 14px;
  }
  .full-form-panel { min-height: auto; }
  .grid, .grid.compact, .mixture-grid, .model-choice-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .model-choice-card { grid-template-columns: 18px 1fr; padding: 9px; }
  .model-choice-card strong { font-size: 0.84rem; }
  .model-choice-card small { font-size: 0.74rem; }
  .cards, .visual-band, .recommend-grid { grid-template-columns: 1fr; }
  .nav-tabs { width: 70vw; transform: translateX(-105%); }
  .nav-tabs.is-open { transform: translateX(0); }
  .nav-tab { width: 100%; }
  .profile-action { display: none; }
  .alternative-row, .expert-row, .history-item {
    grid-template-columns: 1fr;
  }
  .history-details {
    grid-template-columns: 1fr;
  }
  .history-detail-table th,
  .history-detail-table td {
    display: block;
    width: 100%;
    text-align: left;
  }
  .history-detail-table td {
    padding-top: 0;
  }
  .decision-field, .decision-grid { grid-template-columns: 1fr; }
  .document-item { grid-template-columns: 1fr; }
  .comparison-head, .comparison-row { grid-template-columns: 1fr; }
  .comparison-legend { justify-content: flex-start; }
  .expert-row span {
    width: fit-content;
    text-align: left;
  }
  .condition-item { grid-template-columns: 1fr; }
  .condition-item strong { text-align: left; }
  .history-metrics { justify-content: flex-start; }
  .metric-card, .recommend-card { padding: 12px; }
  .metric-card strong, .recommend-card strong { font-size: 1.25rem; }
  .bar-row { grid-template-columns: 62px 1fr; gap: 8px; margin: 12px 0; }
  .user-box span { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .app-footer {
    font-size: 0.78rem;
  }
  .bottom-nav {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 30;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0;
    border-top: 1px solid rgba(5, 5, 5, 0.08);
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 -12px 26px rgba(5, 5, 5, 0.06);
    padding: 6px 8px;
    backdrop-filter: blur(16px);
  }
  .bottom-nav-item {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 3px;
    min-height: 38px;
    border-radius: 0;
    background: transparent;
    color: var(--muted);
    font-size: 0.68rem;
    font-weight: 600;
    padding: 6px 4px;
  }
  .bottom-nav-item svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
  }
  .bottom-nav-item.is-active {
    background: transparent;
    color: var(--teal);
  }
}

@media (max-width: 380px) {
  .login-card { padding: 10px; }
  .login-card h1 { font-size: 1.42rem; }
  .auth-links { flex-direction: column; align-items: center; }
  .grid, .grid.compact, .mixture-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ghost, .outline, .install-card-btn { width: 100%; }
}