:root {
  --bg: #f3efe5;
  --bg-accent: #efe7d6;
  --surface: rgba(255, 250, 242, 0.84);
  --surface-strong: rgba(255, 252, 247, 0.95);
  --border: rgba(70, 82, 74, 0.12);
  --border-strong: rgba(29, 52, 51, 0.18);
  --text: #182228;
  --text-soft: #556168;
  --text-muted: #6d797f;
  --teal: #0d5c63;
  --teal-strong: #07363a;
  --sand: #d8b36a;
  --clay: #bf6c49;
  --mint: #d9f1e6;
  --shadow: 0 24px 60px rgba(19, 30, 29, 0.12);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --font-display: "Aptos Display", "Space Grotesk", "Segoe UI", sans-serif;
  --font-body: "Aptos", "IBM Plex Sans", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font-body);
  background:
    radial-gradient(circle at 15% 20%, rgba(13, 92, 99, 0.18), transparent 24%),
    radial-gradient(circle at 85% 0%, rgba(216, 179, 106, 0.22), transparent 25%),
    linear-gradient(180deg, #f8f3e9 0%, #f1ecdf 42%, #ece7dc 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.24) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.24) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.42), transparent 88%);
}

/* ── Password Change Modal ─────────────────────────────────── */

.pw-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

.pw-modal {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
}

.pw-modal h2 {
  font-size: 1.15rem;
  margin-bottom: 16px;
}

.pw-ok {
  background: rgba(34, 139, 34, 0.1);
  border: 1px solid rgba(34, 139, 34, 0.3);
  color: #1a7a1a;
  padding: 8px 12px;
  border-radius: var(--radius);
  font-size: 0.85rem;
  margin-top: 8px;
}

/* ── Auth & Project Screens ──────────────────────────────── */

.auth-screen,
.project-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
  position: relative;
  z-index: 1;
}

.auth-card,
.project-card {
  background: var(--surface-strong);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}

.auth-card {
  position: relative;
  width: min(980px, 100%);
  padding: 18px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(255, 252, 247, 0.98), rgba(250, 244, 233, 0.9)),
    var(--surface-strong);
}

.auth-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 100% 0%, rgba(13, 92, 99, 0.14), transparent 26%),
    radial-gradient(circle at 0% 100%, rgba(216, 179, 106, 0.16), transparent 24%);
}

.auth-card > * {
  position: relative;
  z-index: 1;
}

.auth-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 20px;
  align-items: stretch;
}

.auth-card__hero {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
  min-height: 100%;
  padding: 34px;
  border-radius: 28px;
  overflow: hidden;
  background:
    radial-gradient(circle at 86% 14%, rgba(216, 179, 106, 0.42), transparent 20%),
    radial-gradient(circle at 12% 100%, rgba(255, 255, 255, 0.14), transparent 28%),
    linear-gradient(145deg, rgba(7, 54, 58, 0.98), rgba(13, 92, 99, 0.9));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.1),
    0 24px 44px rgba(8, 41, 45, 0.18);
}

.auth-card__hero::before {
  content: "";
  position: absolute;
  inset: 18px;
  border-radius: 22px;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.38), transparent 84%);
}

.auth-card__title,
.project-card__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 1.75rem;
  line-height: 1.1;
  color: var(--teal-strong);
}

.auth-card__hero .auth-card__title {
  margin: 0;
  max-width: 9ch;
  font-size: clamp(2.5rem, 5vw, 3.6rem);
  color: #fffdf7;
}

.auth-card__subtitle {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.6;
}

.auth-card__hero .auth-card__subtitle {
  margin: 14px 0 0;
  max-width: 34ch;
  font-size: 1rem;
  color: rgba(255, 248, 232, 0.9);
}

.auth-card__highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.auth-card__highlight {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.12);
  color: #fffdf7;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.auth-card__hero-copy,
.auth-card__workflow {
  position: relative;
  z-index: 1;
}

.auth-card__workflow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.auth-card__workflow-step {
  padding: 14px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
}

.auth-card__workflow-index {
  display: inline-flex;
  margin-bottom: 12px;
  color: rgba(255, 248, 232, 0.74);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.auth-card__workflow-label {
  margin: 0;
  color: #fffdf7;
  font-size: 0.92rem;
  line-height: 1.45;
}

.auth-panel {
  display: grid;
  align-content: start;
  gap: 0;
  padding: 30px;
  border-radius: 28px;
  border: 1px solid rgba(70, 82, 74, 0.1);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(255, 251, 245, 0.72)),
    rgba(255, 255, 255, 0.62);
  backdrop-filter: blur(12px);
}

.auth-panel__intro {
  margin-bottom: 22px;
}

.auth-panel__eyebrow {
  margin: 0 0 10px;
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.auth-panel__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 2vw, 2rem);
  line-height: 1.08;
  color: var(--teal-strong);
}

.auth-panel__note {
  margin: 12px 0 0;
  color: var(--text-soft);
  line-height: 1.6;
}

.project-card__subtitle {
  margin: 0 0 24px;
  color: var(--text-soft);
  line-height: 1.5;
}

.auth-error {
  background: rgba(191, 108, 73, 0.12);
  color: var(--clay);
  border: 1px solid rgba(191, 108, 73, 0.25);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 16px;
  font-size: 0.88rem;
}

.auth-message {
  background: rgba(12, 91, 98, 0.12);
  color: var(--teal-strong);
  border: 1px solid rgba(12, 91, 98, 0.25);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-top: 16px;
  font-size: 0.88rem;
}

.auth-manual-verify {
  margin-top: 16px;
  padding: 14px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(216, 179, 106, 0.28);
  background: rgba(216, 179, 106, 0.12);
}

.auth-manual-verify__label {
  margin: 0 0 10px;
  color: var(--text-soft);
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1.5;
}

.auth-manual-verify__link {
  min-height: 42px;
  background: rgba(255, 255, 255, 0.74);
}

.auth-field__hint {
  font-size: 0.76rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.auth-resend {
  margin-top: 16px;
  padding: 14px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(13, 92, 99, 0.14);
  background: rgba(255, 255, 255, 0.62);
}

.auth-resend__label {
  margin: 0 0 10px;
  color: var(--text-soft);
  font-size: 0.82rem;
  font-weight: 600;
}

.auth-resend__actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

.auth-resend__actions input {
  min-width: 0;
  padding: 10px 14px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.78);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text);
  outline: none;
}

.auth-resend__actions input:focus {
  border-color: var(--teal);
}

.auth-sso-section {
  margin-top: 18px;
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  color: var(--text-muted);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.auth-divider::before,
.auth-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: rgba(85, 97, 104, 0.16);
}

.sso-buttons {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sso-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--text);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.sso-button:hover {
  background: rgba(255, 255, 255, 0.95);
  border-color: var(--border-strong);
}

.sso-google {
  background: #fff;
  color: #333;
  border-color: #dadce0;
}

.sso-google:hover {
  background: #f8f9fa;
  border-color: #c2c7d0;
}

.sso-github {
  background: #24292e;
  color: #fff;
  border-color: #1b1f23;
}

.sso-github:hover {
  background: #1b1f23;
  border-color: #111;
}

.auth-form {
  display: grid;
  gap: 16px;
}

.auth-field {
  display: grid;
  gap: 6px;
}

.auth-field span {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-soft);
}

.auth-field input {
  padding: 13px 15px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.86);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.auth-field input:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 4px rgba(13, 92, 99, 0.08);
  transform: translateY(-1px);
}

.auth-actions {
  display: flex;
  gap: 10px;
  margin-top: 8px;
}

.auth-actions .primary-button,
.auth-actions .secondary-button {
  flex: 1;
  min-height: 50px;
}

/* ── Project Screen ─────────────────────────────────────── */

.project-card {
  width: min(520px, 100%);
  padding: 40px 36px;
}

.project-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 20px;
}

.project-list {
  display: grid;
  gap: 10px;
  margin-bottom: 20px;
}

.project-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.project-list-item:hover {
  border-color: var(--teal);
  background: rgba(13, 92, 99, 0.06);
}

.project-list-item__name {
  font-weight: 600;
  font-size: 1rem;
}

.project-list-item__meta {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.project-list-empty {
  text-align: center;
  padding: 24px;
  color: var(--text-muted);
  font-style: italic;
}

.new-project-form {
  display: flex;
  gap: 10px;
}

.new-project-form input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.7);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text);
  outline: none;
}

.new-project-form input:focus {
  border-color: var(--teal);
}

/* ── API Key Section ───────────────────────────────────── */

.api-key-section {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.api-key-section__title {
  margin: 0 0 4px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
}

.api-key-section__desc {
  margin: 0 0 12px;
  font-size: 0.82rem;
  color: var(--text-soft);
  line-height: 1.5;
}

.api-key-section__desc code {
  background: rgba(12, 91, 98, 0.1);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 0.8rem;
}

.api-key-section__row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.api-key-section__key {
  flex: 1;
  padding: 8px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-family: var(--font-mono, monospace);
  color: var(--text-soft);
  word-break: break-all;
  user-select: all;
}

/* ── Topbar ─────────────────────────────────────────────── */

.hero__topbar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.topbar-context {
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255, 248, 230, 0.85);
}

.topbar-actions {
  display: flex;
  gap: 12px;
}

.topbar-actions button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 6px 18px;
  font-size: 0.88rem;
  font-family: var(--font-body);
  font-weight: 500;
  color: rgba(255, 248, 230, 0.9);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.topbar-actions button:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
  color: #fff;
  transform: none;
}

.page-shell {
  width: min(1280px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 56px;
}

.hero {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.7fr 1fr;
  gap: 24px;
  padding: 34px;
  border: 1px solid rgba(255, 255, 255, 0.46);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, rgba(6, 64, 69, 0.92), rgba(12, 91, 98, 0.82)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  box-shadow: var(--shadow);
  color: #fdf8ef;
  animation: rise-in 700ms ease-out both;
}

.hero::after {
  content: "";
  position: absolute;
  pointer-events: none;
  width: 340px;
  height: 340px;
  right: -80px;
  top: -110px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(216, 179, 106, 0.52), transparent 68%);
  filter: blur(4px);
}

.eyebrow {
  margin: 0 0 12px;
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 248, 232, 0.78);
}

.hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 4rem);
  line-height: 0.98;
  max-width: 16ch;
}

.hero__lede {
  margin: 18px 0 0;
  max-width: 62ch;
  color: rgba(255, 248, 232, 0.88);
  line-height: 1.7;
}

.hero__stats {
  display: grid;
  gap: 14px;
  align-content: end;
}

.stat-card {
  padding: 18px 18px 20px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-lg);
  background: rgba(249, 243, 230, 0.14);
  backdrop-filter: blur(10px);
}

.stat-card__label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 248, 232, 0.72);
}

.workspace {
  margin-top: 22px;
  display: grid;
  gap: 22px;
}

.control-panel,
.summary-strip,
.article-rail,
.article-card,
.empty-state {
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--surface);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}

.control-panel {
  padding: 24px;
  animation: rise-in 820ms ease-out both;
}

.usecase-card,
.bundle-panel {
  margin-top: 18px;
  padding: 20px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid rgba(85, 97, 104, 0.12);
}

.usecase-card {
  display: flex;
  gap: 18px;
  align-items: end;
  justify-content: space-between;
}

.usecase-card__title {
  margin: 6px 0 8px;
  font-family: var(--font-display);
  font-size: 1.4rem;
}

.usecase-card__text {
  margin: 0;
  max-width: 72ch;
  color: var(--text-soft);
  line-height: 1.7;
}

.search-form {
  display: grid;
  gap: 18px;
}

.search-field,
.limit-field {
  display: grid;
  gap: 10px;
}

.search-field span,
.limit-field span {
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text-soft);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

textarea,
select,
button {
  font: inherit;
}

textarea,
select {
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.76);
  color: var(--text);
}

textarea {
  width: 100%;
  resize: vertical;
  min-height: 112px;
  padding: 16px 18px;
  line-height: 1.6;
}

select {
  min-width: 100px;
  padding: 14px 16px;
}

textarea:focus,
select:focus,
button:focus-visible {
  outline: 2px solid rgba(13, 92, 99, 0.26);
  outline-offset: 2px;
}

.control-row {
  display: flex;
  gap: 14px;
  align-items: end;
  justify-content: space-between;
}

.primary-button,
.secondary-button,
.download-button {
  border: 0;
  cursor: pointer;
  border-radius: 999px;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease,
    opacity 180ms ease;
}

.primary-button {
  padding: 15px 24px;
  min-width: 172px;
  background: linear-gradient(135deg, var(--clay), #d88556);
  color: #fff8f2;
  box-shadow: 0 14px 28px rgba(191, 108, 73, 0.22);
}

.secondary-button,
.download-button {
  padding: 12px 16px;
  background: rgba(13, 92, 99, 0.08);
  color: var(--teal-strong);
}

.primary-button:hover,
.secondary-button:hover,
.download-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(14, 41, 44, 0.12);
}

.primary-button:disabled,
.secondary-button:disabled,
.download-button:disabled {
  opacity: 0.48;
  cursor: progress;
  transform: none;
  box-shadow: none;
}

.status-banner {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(13, 92, 99, 0.14);
  background: rgba(217, 241, 230, 0.78);
  color: var(--teal-strong);
}

.status-banner[data-tone="warning"] {
  border-color: rgba(191, 108, 73, 0.2);
  background: rgba(250, 233, 224, 0.9);
  color: #814329;
}

.status-banner[data-tone="success"] {
  border-color: rgba(13, 92, 99, 0.18);
  background: rgba(217, 241, 230, 0.9);
}

.summary-strip {
  padding: 16px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  animation: rise-in 920ms ease-out both;
}

.summary-chip {
  padding: 14px 16px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.56);
}

.summary-chip__label {
  display: block;
  margin-bottom: 10px;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.summary-chip strong {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--teal-strong);
}

.filetype-filter {
  margin-top: 18px;
  padding: 16px 20px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid rgba(85, 97, 104, 0.12);
}

.filetype-filter__header {
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.filetype-filter__clear {
  border: 0;
  background: none;
  color: var(--teal);
  font: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  padding: 4px 10px;
  border-radius: 999px;
  transition: background 160ms ease;
}

.filetype-filter__clear:hover {
  background: rgba(13, 92, 99, 0.08);
}

.filetype-filter__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filetype-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(85, 97, 104, 0.14);
  background: rgba(255, 255, 255, 0.8);
  color: var(--text-soft);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition:
    background 160ms ease,
    border-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
  user-select: none;
}

.filetype-chip:hover {
  transform: translateY(-1px);
  border-color: rgba(13, 92, 99, 0.2);
}

.filetype-chip.is-active {
  background: linear-gradient(135deg, rgba(13, 92, 99, 0.12), rgba(216, 179, 106, 0.12));
  border-color: rgba(13, 92, 99, 0.28);
  color: var(--teal-strong);
}

.filetype-chip__count {
  font-size: 0.76rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 999px;
  background: rgba(85, 97, 104, 0.1);
  color: var(--text-muted);
}

.filetype-chip.is-active .filetype-chip__count {
  background: rgba(13, 92, 99, 0.14);
  color: var(--teal-strong);
}

.supplement-item.is-filetype-hidden {
  display: none;
}

.bundle-panel {
  display: grid;
  grid-template-columns: 1.4fr 1fr auto;
  gap: 18px;
  align-items: center;
}

.bundle-panel__copy h2 {
  margin: 6px 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2vw, 1.9rem);
}

.bundle-panel__copy p:last-child {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.7;
}

.bundle-panel__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.bundle-chip {
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: rgba(13, 92, 99, 0.06);
}

.bundle-chip__label {
  display: block;
  margin-bottom: 8px;
  color: var(--text-muted);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.bundle-chip strong {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--teal-strong);
}

.bundle-panel__actions {
  display: grid;
  gap: 10px;
}

.results-shell {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.article-rail {
  position: sticky;
  top: 22px;
  max-height: calc(100vh - 44px);
  display: flex;
  flex-direction: column;
  padding: 22px;
  overflow: hidden;
  animation: rise-in 980ms ease-out both;
}

.article-rail__header h2 {
  margin: 6px 0 8px;
  font-family: var(--font-display);
  font-size: 1.75rem;
  line-height: 1.05;
}

.article-rail__header p:last-child {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.65;
}

.section-kicker {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.article-rail__list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
  overflow-y: auto;
  min-height: 0;
}

.rail-card,
.rail-empty {
  padding: 16px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.66);
  border: 1px solid rgba(85, 97, 104, 0.12);
}

.rail-card {
  width: 100%;
  text-align: left;
  cursor: pointer;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease;
}

.rail-card:hover {
  transform: translateY(-1px);
  border-color: rgba(13, 92, 99, 0.24);
  box-shadow: 0 10px 24px rgba(14, 41, 44, 0.1);
}

.rail-card.is-active {
  border-color: rgba(13, 92, 99, 0.28);
  background:
    linear-gradient(135deg, rgba(13, 92, 99, 0.09), rgba(216, 179, 106, 0.12)),
    rgba(255, 255, 255, 0.82);
  box-shadow: inset 0 0 0 1px rgba(13, 92, 99, 0.08);
}

.rail-card__index {
  display: inline-flex;
  margin-bottom: 10px;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(13, 92, 99, 0.08);
  color: var(--teal-strong);
  font-size: 0.78rem;
  font-weight: 700;
}

.rail-card__title {
  margin: 0;
  font-size: 1rem;
  line-height: 1.35;
  color: var(--text);
}

.rail-card__meta,
.rail-card__counts {
  margin: 10px 0 0;
  color: var(--text-soft);
  font-size: 0.92rem;
  line-height: 1.5;
}

.rail-card__counts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.rail-count {
  padding: 5px 9px;
  border-radius: 999px;
  background: rgba(85, 97, 104, 0.08);
  color: var(--text-soft);
  font-size: 0.78rem;
  font-weight: 700;
}

.rail-empty {
  color: var(--text-soft);
  line-height: 1.6;
}

.article-details {
  min-width: 0;
  display: grid;
  gap: 18px;
}

.empty-state {
  padding: 32px;
}

.empty-state h2 {
  margin-top: 0;
  font-family: var(--font-display);
  font-size: 2rem;
}

.empty-state p {
  max-width: 66ch;
  line-height: 1.7;
  color: var(--text-soft);
}

.article-card {
  position: relative;
  overflow: hidden;
  padding: 28px;
  scroll-margin-top: 28px;
  animation: rise-in 560ms ease-out both;
}

.article-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 8px;
  background: linear-gradient(180deg, var(--sand), var(--clay));
}

.article-card__header {
  display: flex;
  gap: 16px;
  align-items: start;
  justify-content: space-between;
}

.article-card__heading {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.article-card__meta {
  margin: 0;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
}

.article-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2vw, 2rem);
  line-height: 1.15;
}

.article-card__idline {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.92rem;
  line-height: 1.5;
}

.article-card__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: end;
  gap: 10px;
}

.ghost-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid rgba(13, 92, 99, 0.14);
  background: rgba(255, 255, 255, 0.72);
  color: var(--teal-strong);
  text-decoration: none;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.ghost-link:hover {
  transform: translateY(-1px);
  border-color: rgba(13, 92, 99, 0.24);
  background: rgba(255, 255, 255, 0.9);
}

.article-story-grid {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.story-card,
.content-panel {
  padding: 18px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(85, 97, 104, 0.1);
}

.story-card__label,
.content-panel__label {
  margin: 0 0 10px;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.story-card__text {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.7;
}

.article-body-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: 0.9fr 1.3fr;
  gap: 14px;
}

.article-card__authors,
.article-card__abstract,
.supplement-item__description,
.supplement-item__explanation,
.download-report,
.note {
  color: var(--text-soft);
  line-height: 1.7;
}

.article-card__authors {
  margin: 0;
}

.article-card__abstract {
  margin: 0;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.article-card__tags {
  margin-top: 14px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(13, 92, 99, 0.08);
  color: var(--teal-strong);
  font-size: 0.88rem;
}

.pill.is-warm {
  background: rgba(216, 179, 106, 0.18);
  color: #80542a;
}

.pill.is-muted {
  background: rgba(85, 97, 104, 0.08);
  color: var(--text-soft);
}

.note-stack {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.note {
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(85, 97, 104, 0.12);
}

.supplement-block {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid rgba(85, 97, 104, 0.12);
}

.supplement-block__head {
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
}

.supplement-block__head h3 {
  margin: 0;
  font-family: var(--font-display);
}

.supplement-count {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.supplement-block__explanation {
  margin: 10px 0 0;
  max-width: 70ch;
  color: var(--text-soft);
  line-height: 1.7;
}

.supplement-list {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.supplement-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  padding: 18px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(85, 97, 104, 0.1);
}

.supplement-item.is-selected {
  border-color: rgba(13, 92, 99, 0.28);
  background:
    linear-gradient(135deg, rgba(13, 92, 99, 0.08), rgba(216, 179, 106, 0.08)),
    rgba(255, 255, 255, 0.84);
  box-shadow: inset 0 0 0 1px rgba(13, 92, 99, 0.08);
}

.supplement-item__eyebrow {
  margin: 0 0 8px;
  color: var(--text-muted);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.supplement-item__title-row {
  display: flex;
  gap: 12px;
  align-items: baseline;
  justify-content: space-between;
}

.supplement-item__title {
  margin: 0;
  font-size: 1rem;
}

.supplement-item__size {
  color: var(--text-muted);
  font-size: 0.9rem;
  white-space: nowrap;
}

.supplement-item__filename {
  margin: 8px 0 0;
  font-family: "Consolas", "SFMono-Regular", "Liberation Mono", monospace;
  font-size: 0.9rem;
  color: var(--teal-strong);
  overflow-wrap: anywhere;
}

.supplement-item__description {
  margin: 10px 0 0;
}

.supplement-item__explanation {
  margin: 8px 0 12px;
  font-size: 0.95rem;
}

.supplement-item__actions {
  display: grid;
  align-content: start;
  gap: 12px;
}

.select-toggle {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: rgba(13, 92, 99, 0.06);
  color: var(--teal-strong);
  font-size: 0.9rem;
  font-weight: 700;
}

.select-toggle input {
  width: 18px;
  height: 18px;
  accent-color: var(--teal);
}

.download-report {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(13, 92, 99, 0.12);
  background: rgba(217, 241, 230, 0.55);
}

.preview-button {
  border: 0;
  cursor: pointer;
  border-radius: 999px;
  padding: 12px 16px;
  background: rgba(216, 179, 106, 0.16);
  color: #80542a;
  font: inherit;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease;
}

.preview-button:hover {
  transform: translateY(-1px);
  background: rgba(216, 179, 106, 0.28);
  box-shadow: 0 6px 14px rgba(128, 84, 42, 0.1);
}

.preview-button:disabled {
  opacity: 0.48;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.preview-modal {
  position: fixed;
  inset: 0;
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fade-in 200ms ease-out both;
}

.preview-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(18, 30, 28, 0.52);
  backdrop-filter: blur(6px);
}

.preview-modal__panel {
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr auto;
  width: min(920px, calc(100vw - 40px));
  max-height: calc(100vh - 60px);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  background: var(--surface-strong);
  box-shadow: 0 32px 80px rgba(14, 30, 28, 0.28);
  animation: rise-in 300ms ease-out both;
  overflow: hidden;
}

.preview-modal__header {
  display: flex;
  gap: 16px;
  align-items: start;
  justify-content: space-between;
  padding: 24px 28px 16px;
  border-bottom: 1px solid var(--border);
}

.preview-modal__title-block {
  min-width: 0;
}

.preview-modal__eyebrow {
  margin: 0 0 6px;
  color: var(--text-muted);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.preview-modal__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.4rem;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.preview-modal__meta {
  margin: 6px 0 0;
  color: var(--text-soft);
  font-size: 0.9rem;
  font-family: "Consolas", "SFMono-Regular", monospace;
  overflow-wrap: anywhere;
}

.preview-modal__close {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 50%;
  background: rgba(85, 97, 104, 0.08);
  color: var(--text-soft);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  transition: background 160ms ease;
}

.preview-modal__close:hover {
  background: rgba(85, 97, 104, 0.16);
}

.preview-modal__body {
  overflow: auto;
  padding: 20px 28px;
  min-height: 120px;
}

.preview-modal__loading {
  padding: 32px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.preview-modal__content-text {
  white-space: pre-wrap;
  font-family: "Consolas", "SFMono-Regular", "Liberation Mono", monospace;
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--text);
  tab-size: 4;
  overflow-wrap: anywhere;
}

.preview-modal__content-json {
  white-space: pre-wrap;
  font-family: "Consolas", "SFMono-Regular", "Liberation Mono", monospace;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--teal-strong);
  tab-size: 2;
  overflow-wrap: anywhere;
}

.preview-modal__content-hex {
  font-family: "Consolas", "SFMono-Regular", monospace;
  font-size: 0.84rem;
  color: var(--text-soft);
  word-break: break-all;
}

.preview-modal__content-binary {
  padding: 24px 0;
  text-align: center;
  color: var(--text-muted);
}

.preview-modal__content-error {
  padding: 20px 0;
  color: #814329;
}

.preview-modal__sidecar {
  margin-top: 18px;
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(13, 92, 99, 0.12);
  background: rgba(217, 241, 230, 0.4);
}

.preview-modal__sidecar-title {
  margin: 0 0 10px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.preview-modal__sidecar-body {
  white-space: pre-wrap;
  font-family: "Consolas", "SFMono-Regular", monospace;
  font-size: 0.8rem;
  line-height: 1.55;
  color: var(--teal-strong);
}

.preview-modal__footer {
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px 20px;
  border-top: 1px solid var(--border);
}

.preview-modal__actions {
  display: flex;
  gap: 10px;
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.hidden {
  display: none !important;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .auth-card {
    width: min(720px, 100%);
  }

  .auth-layout {
    grid-template-columns: 1fr;
  }

  .auth-card__hero {
    min-height: auto;
  }

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

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

  .bundle-panel {
    grid-template-columns: 1fr;
  }

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

  .results-shell {
    grid-template-columns: 1fr;
  }

  .article-rail {
    position: static;
  }

  .article-story-grid,
  .article-body-grid {
    grid-template-columns: 1fr;
  }

  .article-card__header,
  .supplement-block__head,
  .control-row {
    flex-direction: column;
    align-items: stretch;
  }

  .usecase-card {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (max-width: 720px) {
  .auth-screen,
  .project-screen {
    padding: 16px;
  }

  .auth-card {
    padding: 14px;
    border-radius: 26px;
  }

  .auth-card__hero {
    padding: 22px;
    border-radius: 24px;
  }

  .auth-panel {
    padding: 22px;
    border-radius: 24px;
  }

  .auth-card__workflow {
    grid-template-columns: 1fr;
  }

  .auth-actions {
    flex-direction: column;
  }

  .page-shell {
    width: min(100vw - 18px, 1280px);
    padding-top: 12px;
  }

  .hero,
  .control-panel,
  .article-rail,
  .article-card,
  .empty-state {
    padding: 20px;
    border-radius: 24px;
  }

  .summary-strip {
    grid-template-columns: 1fr;
  }

  .bundle-panel__stats {
    grid-template-columns: 1fr;
  }

  .supplement-item {
    grid-template-columns: 1fr;
  }

  .download-button,
  .secondary-button,
  .primary-button {
    width: 100%;
  }

  .auth-resend__actions {
    grid-template-columns: 1fr;
  }

  .supplement-item__actions {
    grid-template-columns: 1fr;
  }
}