/* ==========================================================================
   layout.css — application shell (sidebar, topbar, content region)
   ========================================================================== */

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

/* ---------------------------------- Sidebar ---------------------------------- */

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: 272px;
  background: linear-gradient(180deg, var(--ink-900), var(--ink-800) 60%, var(--ink-900));
  color: #eef0f6;
  transform: translateX(-100%);
  transition: transform 0.32s var(--ease-standard);
  z-index: 40;
  display: flex;
  flex-direction: column;
}

.sidebar-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 22px 18px 20px;
}

@media (min-width: 768px) {
  .sidebar {
    transform: none;
  }
  .app-shell {
    padding-left: 272px;
  }
}

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

.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 22, 38, 0.45);
  backdrop-filter: blur(2px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s var(--ease-standard);
  z-index: 35;
}

body.drawer-open .drawer-overlay {
  opacity: 1;
  pointer-events: auto;
}

@media (min-width: 768px) {
  .drawer-overlay {
    display: none;
  }
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 6px 22px;
  border-bottom: 1px solid var(--ink-line);
  margin-bottom: 18px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--moss-600);
  color: var(--gold-100);
  flex-shrink: 0;
}

.brand-name {
  font-family: "Fraunces", serif;
  font-size: 13.5px;
  line-height: 1.25;
  color: #cfd4e2;
  margin: 0;
}

.brand-name--accent {
  color: #f4f5f9;
  font-weight: 600;
}

.drawer-close-btn,
.drawer-open-btn {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  border: 1px solid var(--paper-line);
  background: transparent;
  color: var(--text-600);
}

.drawer-close-btn {
  border-color: var(--ink-line);
  color: #cfd4e2;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
}

.sidebar-nav-label {
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #8891ab;
  padding: 0 10px;
  margin-bottom: 10px;
}

.sidebar-footer {
  position: relative;
  padding: 16px 12px 6px;
  border-top: 1px solid var(--ink-line);
  margin-top: 10px;
}

.sidebar-footer-text {
  font-size: 12.5px;
  color: #d6bd83;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.sidebar-footer-sub {
  font-size: 12px;
  color: #7d84a0;
  margin-top: 3px;
  line-height: 1.5;
}

/* Signature "deadline rail" — a faint dotted ledger margin */
.deadline-rail {
  position: absolute;
  top: 0;
  left: 0;
  width: 2px;
  height: 100%;
  background-image: linear-gradient(var(--gold-500) 40%, transparent 0%);
  background-size: 2px 8px;
  background-repeat: repeat-y;
  opacity: 0.45;
}

/* ---------------------------------- Topbar ---------------------------------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  background: rgba(251, 250, 247, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--paper-line);
}

@media (min-width: 768px) {
  .topbar {
    padding: 22px 36px;
  }
}

.topbar-eyebrow {
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gold-600);
  font-weight: 600;
  margin-bottom: 2px;
}

.topbar-title {
  font-size: 22px;
  font-weight: 500;
  color: var(--text-900);
  letter-spacing: -0.01em;
}

@media (min-width: 768px) {
  .topbar-title {
    font-size: 26px;
  }
}

.topbar-actions {
  margin-left: auto;
}

/* ---------------------------------- Content ---------------------------------- */

.content-region {
  flex: 1;
  min-width: 0;
  outline: none;
}

.content-inner {
  padding: 24px 20px 64px;
  max-width: 980px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .content-inner {
    padding: 40px 36px 80px;
  }
}

/* Route transition */
.route-enter {
  opacity: 0;
  transform: translateY(6px);
}

.route-enter-active {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.32s var(--ease-standard), transform 0.32s var(--ease-standard);
}