:root {
  color-scheme: light;
  --bg: #f4f7fb;
  --panel: #ffffff;
  --panel-alt: #edf2f9;
  --text: #152033;
  --muted: #5d6b82;
  --border: #d7e0eb;
  --accent: #0078d4;
  --accent-soft: #e6f2fb;
  --shadow: 0 16px 40px rgba(21, 32, 51, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: linear-gradient(180deg, #eef4fb 0%, var(--bg) 100%);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
  overflow-x: hidden;
}

button,
input,
select {
  font: inherit;
}

.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.brand-kicker,
.sidebar-label {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  color: var(--muted);
  margin: 0;
}

.topbar-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.status-pill {
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 600;
}

.auth-button {
  white-space: nowrap;
}

.icon-button {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 0.85rem;
  border: 1px solid var(--border);
  background: var(--panel);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.22rem;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(21, 32, 51, 0.06);
}

.icon-button span {
  width: 1rem;
  height: 2px;
  background: var(--text);
  border-radius: 999px;
}

.workspace {
  flex: 1;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem;
}

.sidebar {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.sidebar-section {
  padding: 1rem;
}

.nav-list {
  display: grid;
  gap: 0.5rem;
  margin-top: 0.85rem;
}

.nav-item {
  width: 100%;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  text-align: left;
  padding: 0.95rem 1rem;
  border-radius: 1rem;
  cursor: pointer;
  display: grid;
  gap: 0.2rem;
}

.nav-item:hover {
  background: var(--panel-alt);
}

.nav-item.active {
  background: var(--accent-soft);
  border-color: rgba(0, 120, 212, 0.18);
}

.nav-item strong {
  font-size: 0.98rem;
}

.nav-item span,
.muted {
  color: var(--muted);
  font-size: 0.92rem;
}

.content {
  min-width: 0;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--border);
  border-radius: 1.5rem;
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.page {
  display: grid;
  gap: 1rem;
}

.hero {
  display: grid;
  gap: 1rem;
  padding: 1.25rem;
  border-radius: 1.25rem;
  background: linear-gradient(135deg, #f8fbff 0%, #eef6fd 100%);
  border: 1px solid var(--border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 1rem;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 1.2rem;
  padding: 1rem;
}

.card h2,
.card h3,
.hero h1,
.hero h2,
.section-title {
  margin: 0 0 0.5rem;
}

.card p,
.hero p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

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

.timer {
  display: grid;
  gap: 0.35rem;
  padding: 1rem;
  border-radius: 1rem;
  background: var(--panel-alt);
}

.timer strong {
  font-size: 1.6rem;
}

.memorial-photo {
  width: 100%;
  max-width: 480px;
  border-radius: 1rem;
  border: 1px solid var(--border);
  display: block;
  object-fit: cover;
  background: var(--panel-alt);
}

.timeline {
  display: grid;
  gap: 0.75rem;
}

.event {
  display: grid;
  gap: 0.25rem;
  padding: 0.9rem 1rem;
  border-radius: 1rem;
  background: var(--panel-alt);
}

.event strong {
  font-size: 1rem;
}

.event time {
  font-size: 0.9rem;
  color: var(--accent);
  font-weight: 600;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

label {
  display: grid;
  gap: 0.35rem;
  font-weight: 600;
}

input,
select,
textarea {
  width: 100%;
  padding: 0.85rem 0.95rem;
  border-radius: 0.85rem;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
}

textarea {
  min-height: 6rem;
  resize: vertical;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.primary-button,
.secondary-button {
  border: 0;
  border-radius: 0.9rem;
  padding: 0.9rem 1.15rem;
  font-weight: 700;
  cursor: pointer;
}

.primary-button {
  color: #fff;
  background: var(--accent);
}

.secondary-button {
  color: var(--text);
  background: var(--panel-alt);
}

.notice {
  padding: 0.9rem 1rem;
  border-radius: 1rem;
  background: #f6fafc;
  border: 1px dashed var(--border);
  color: var(--muted);
}

.access-panel {
  display: grid;
  gap: 0.85rem;
  align-items: start;
}

.access-panel .card {
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}

.chat-shell {
  display: grid;
  gap: 1rem;
}

.chat-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
}

.assistant-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.assistant-chip {
  border: 1px solid var(--border);
  background: var(--panel-alt);
  color: var(--text);
  border-radius: 999px;
  padding: 0.5rem 0.8rem;
  cursor: pointer;
}

.chat-log {
  display: grid;
  gap: 0.75rem;
  max-height: 26rem;
  overflow: auto;
  padding-right: 0.25rem;
}

.chat-bubble {
  display: grid;
  gap: 0.35rem;
  padding: 0.9rem 1rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
}

.chat-bubble p {
  margin: 0;
}

.chat-bubble.assistant {
  background: #f8fbff;
}

.chat-bubble.user {
  background: #eef6fd;
  margin-left: auto;
}

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

.assistant-form {
  display: grid;
  gap: 0.85rem;
}

.assistant-form textarea {
  min-height: 5.5rem;
}

.hidden {
  display: none !important;
}

@media (max-width: 960px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    inset: 4.5rem auto 0 0;
    width: min(86vw, 320px);
    transform: translateX(-105%);
    transition: transform 0.22s ease;
    z-index: 30;
  }

  body.nav-open .sidebar {
    transform: translateX(0);
  }

  .hero-grid,
  .grid-2,
  .form-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .topbar {
    padding-inline: 0.75rem;
  }

  .content {
    padding: 1rem;
  }
}