:root {
  --primary: #6b1e2e;
  --secondary: #d9a441;
  --dark: #121212;
  --background: #f8f8f8;
  --surface: #ffffff;
  --border: rgba(0,0,0,.08);
  --text: #121212;
  --muted: #6b7280;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #dc2626;
  --nav-h: 4rem;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: system-ui, -apple-system, sans-serif;
  line-height: 1.5;
}
body.nav-open,
body.studio-open { overflow: hidden; }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; }

.container { max-width: 72rem; margin: 0 auto; padding: 0 1rem; }
@media (min-width: 768px) { .container { padding: 0 1.5rem; } }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .65rem 1rem;
  border-radius: .75rem;
  border: none;
  font-weight: 600;
  font-size: .9rem;
  cursor: pointer;
  min-height: 2.75rem;
  touch-action: manipulation;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-outline { background: #fff; border: 1px solid var(--border); color: var(--text); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1rem;
}
@media (min-width: 768px) { .card { padding: 1.25rem; } }

/* Public navigation */
.glass {
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding-top: env(safe-area-inset-top, 0px);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  min-height: var(--nav-h);
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-weight: 700;
  min-width: 0;
}
.nav-logo {
  width: 2rem;
  height: 2rem;
  border-radius: .5rem;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.nav-title {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: .95rem;
}
@media (max-width: 400px) { .nav-title { display: none; } }

.nav-toggle,
.studio-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.75rem;
  height: 2.75rem;
  padding: .5rem;
  border: 1px solid var(--border);
  border-radius: .75rem;
  background: var(--surface);
  cursor: pointer;
  flex-shrink: 0;
}
.nav-toggle span,
.studio-toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .2s, opacity .2s;
}
body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-panel {
  position: fixed;
  top: calc(var(--nav-h) + env(safe-area-inset-top, 0px));
  right: 0;
  bottom: 0;
  width: min(18rem, 88vw);
  background: var(--surface);
  border-left: 1px solid var(--border);
  padding: 1.25rem 1rem calc(1.25rem + var(--safe-bottom));
  transform: translateX(100%);
  transition: transform .25s ease;
  z-index: 101;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
body.nav-open .nav-panel { transform: translateX(0); }

.nav-links {
  display: flex;
  flex-direction: column;
  gap: .25rem;
}
.nav-links a {
  display: block;
  padding: .75rem .85rem;
  border-radius: .75rem;
  color: var(--muted);
  font-size: 1rem;
  font-weight: 500;
}
.nav-links a:hover { background: rgba(107,30,46,.06); color: var(--primary); }

.nav-actions {
  display: flex;
  flex-direction: column;
  gap: .75rem;
  margin-top: auto;
}
.nav-actions .btn { width: 100%; }
.nav-studio-link {
  text-align: center;
  font-size: .85rem;
  color: var(--muted);
  padding: .5rem;
}

.nav-overlay,
.studio-overlay {
  position: fixed;
  inset: 0;
  background: rgba(18,18,18,.45);
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s, visibility .25s;
  z-index: 99;
}
body.nav-open .nav-overlay,
body.studio-open .studio-overlay {
  opacity: 1;
  visibility: visible;
}

.site-main { padding-top: calc(var(--nav-h) + env(safe-area-inset-top, 0px)); }

@media (min-width: 992px) {
  .nav-toggle { display: none; }
  .nav-overlay { display: none; }
  .nav-panel {
    position: static;
    width: auto;
    transform: none;
    border: none;
    padding: 0;
    overflow: visible;
    flex-direction: row;
    align-items: center;
    gap: 2rem;
    flex: 1;
    justify-content: flex-end;
  }
  .nav-links {
    flex-direction: row;
    gap: 1.5rem;
    align-items: center;
  }
  .nav-links a {
    padding: 0;
    font-size: .9rem;
  }
  .nav-links a:hover { background: transparent; }
  .nav-actions {
    flex-direction: row;
    align-items: center;
    margin-top: 0;
    gap: .75rem;
  }
  .nav-actions .btn { width: auto; font-size: .85rem; min-height: auto; padding: .55rem .9rem; }
  .nav-studio-link { padding: 0; }
}

/* Hero & public sections */
.hero {
  min-height: min(90vh, 48rem);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  position: relative;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(18,18,18,.75), rgba(18,18,18,.9)),
    url('https://images.unsplash.com/photo-1493863647123-597891f2f0cc?w=1920&q=80') center/cover;
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 48rem;
  padding: 3rem 1rem 2.5rem;
}
@media (min-width: 768px) { .hero-content { padding: 6rem 1.5rem 4rem; } }
.hero h1 { font-size: clamp(2rem, 8vw, 4rem); margin: 0 0 1rem; }

.badge { display: inline-block; padding: .2rem .6rem; border-radius: 999px; font-size: .75rem; font-weight: 600; }
.badge-success { background: #dcfce7; color: #166534; }
.badge-warning { background: #fef3c7; color: #92400e; }

/* Tables — horizontal scroll on small screens */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; width: 100%; }
.table { width: 100%; border-collapse: collapse; font-size: .85rem; }
.table-wrap .table { min-width: 36rem; }
@media (min-width: 768px) {
  .table { font-size: .9rem; }
  .table-wrap .table { min-width: 0; }
}
.table th, .table td { padding: .65rem .5rem; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
@media (min-width: 768px) { .table th, .table td { padding: .75rem; } }

/* Studio admin layout */
.studio { display: flex; min-height: 100vh; min-height: 100dvh; }
.sidebar {
  width: 16rem;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}
.sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  font-size: .95rem;
}
.sidebar-close {
  display: none;
  width: 2.25rem;
  height: 2.25rem;
  border: none;
  background: transparent;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--muted);
  cursor: pointer;
}
.sidebar-nav { flex: 1; overflow-y: auto; }
.sidebar a {
  display: block;
  padding: .65rem .75rem;
  border-radius: .75rem;
  color: var(--muted);
  margin-bottom: .2rem;
  font-size: .9rem;
}
.sidebar a.active,
.sidebar a:hover { background: rgba(107,30,46,.08); color: var(--primary); }
.sidebar-logout { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.sidebar-logout .btn { width: 100%; color: var(--danger); }

.studio-toggle { display: none; }
.studio-main { flex: 1; min-width: 0; padding: 1rem; padding-bottom: calc(1rem + var(--safe-bottom)); }
@media (min-width: 768px) { .studio-main { padding: 1.5rem; } }

.studio-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: .75rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.studio-top-left {
  display: flex;
  align-items: center;
  gap: .75rem;
  min-width: 0;
  flex: 1;
}
.studio-top h1 {
  margin: 0;
  font-size: clamp(1.15rem, 4vw, 1.5rem);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.studio-site-link {
  font-size: .8rem;
  color: var(--muted);
  white-space: nowrap;
  flex-shrink: 0;
}

@media (max-width: 991px) {
  .studio-toggle { display: flex; }
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 102;
    transform: translateX(-100%);
    transition: transform .25s ease;
    padding-top: calc(1rem + env(safe-area-inset-top, 0px));
    padding-bottom: calc(1rem + var(--safe-bottom));
    box-shadow: 0 0 0 0 transparent;
  }
  body.studio-open .sidebar {
    transform: translateX(0);
    box-shadow: .25rem 0 2rem rgba(0,0,0,.12);
  }
  .sidebar-close { display: flex; align-items: center; justify-content: center; }
}

.stats {
  display: grid;
  gap: .75rem;
  grid-template-columns: repeat(2, 1fr);
}
@media (min-width: 640px) { .stats { grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); } }

.alert { padding: .75rem 1rem; border-radius: .75rem; margin-bottom: 1rem; font-size: .9rem; }
.alert-success { background: #dcfce7; color: #166534; }
.alert-error { background: #fee2e2; color: #991b1b; }

input, select, textarea {
  width: 100%;
  padding: .7rem .75rem;
  border: 1px solid var(--border);
  border-radius: .75rem;
  font-size: 16px;
  background: #fff;
}
label { display: block; font-size: .875rem; font-weight: 600; margin-bottom: .35rem; }
.form-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .form-grid { grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); } }

/* Footer */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,.7);
  padding: 3rem 0 2rem;
  margin-top: 3rem;
}
.site-footer-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .site-footer-grid { grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); gap: 2rem; } }
.footer-title { color: #fff; display: block; margin-bottom: .35rem; }
.site-footer p { font-size: .9rem; margin: .25rem 0; }
.site-footer-copy { text-align: center; font-size: .75rem; margin-top: 2rem; padding: 0 1rem; }

/* Inbox */
.inbox-layout {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
  min-height: 20rem;
}
@media (min-width: 900px) { .inbox-layout { grid-template-columns: 14rem 1fr; min-height: 32rem; } }
.inbox-sidebar { padding: 1rem; }
.inbox-folders {
  display: flex;
  gap: .35rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: .25rem;
}
@media (min-width: 900px) {
  .inbox-folders { flex-direction: column; overflow: visible; padding-bottom: 0; }
}
.inbox-folders a {
  display: block;
  padding: .55rem .75rem;
  border-radius: 999px;
  color: var(--muted);
  white-space: nowrap;
  font-size: .85rem;
  border: 1px solid var(--border);
  background: #fff;
}
@media (min-width: 900px) {
  .inbox-folders a { border-radius: .65rem; border-color: transparent; background: transparent; margin-bottom: .2rem; }
}
.inbox-folders a.active,
.inbox-folders a:hover { background: rgba(107,30,46,.08); color: var(--primary); font-weight: 600; border-color: rgba(107,30,46,.15); }
.inbox-badge { display: inline-block; min-width: 1.25rem; padding: 0 .35rem; border-radius: 999px; background: var(--primary); color: #fff; font-size: .7rem; text-align: center; }
.inbox-list { display: flex; flex-direction: column; }
.inbox-row { display: block; padding: .85rem 1rem; border-bottom: 1px solid var(--border); transition: background .15s; }
@media (min-width: 768px) { .inbox-row { padding: 1rem 1.25rem; } }
.inbox-row:hover { background: rgba(107,30,46,.04); }
.inbox-row.unread { background: rgba(107,30,46,.06); }
.inbox-row-top { display: flex; justify-content: space-between; gap: .5rem; margin-bottom: .25rem; align-items: flex-start; }
.inbox-row-top strong { font-size: .9rem; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.inbox-date { color: var(--muted); font-size: .75rem; white-space: nowrap; flex-shrink: 0; }
.inbox-subject { font-weight: 600; font-size: .9rem; margin-bottom: .15rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.inbox-preview { color: var(--muted); font-size: .82rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.inbox-meta { display: grid; gap: .35rem; font-size: .85rem; color: var(--muted); word-break: break-word; }
.inbox-body { font-size: .95rem; line-height: 1.6; overflow-wrap: anywhere; }
.inbox-html img { max-width: 100%; height: auto; }

/* Login */
.login-page {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #f8f8f8 0%, #efe7ea 100%);
  padding: 1.5rem 1rem;
  padding-bottom: calc(1.5rem + var(--safe-bottom));
}
.login-shell { width: 100%; max-width: 26rem; }
.login-brand { text-align: center; margin-bottom: 1.5rem; }
.login-logo { display: inline-flex; align-items: center; gap: .75rem; text-align: left; }
.login-logo span { width: 3rem; height: 3rem; border-radius: .85rem; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 1.35rem; font-weight: 700; }
.login-logo strong { display: block; font-size: 1rem; }
.login-logo small { display: block; color: var(--muted); font-size: .8rem; font-weight: 500; }
.login-card { padding: 1.5rem; }
@media (min-width: 480px) { .login-card { padding: 2rem; } }
.login-card h1 { margin: 0 0 .35rem; font-size: 1.5rem; }
.login-subtitle { color: var(--muted); font-size: .9rem; margin: 0 0 1.5rem; }
.login-field { margin-bottom: 1rem; }
.login-submit { width: 100%; margin-top: .5rem; padding: .75rem 1rem; }
.login-hint { margin: 1.25rem 0 0; font-size: .8rem; color: var(--muted); text-align: center; line-height: 1.5; }
.login-hint code { background: #f3f4f6; padding: .1rem .35rem; border-radius: .35rem; font-size: .75rem; word-break: break-all; }
.login-footer { text-align: center; margin-top: 1.25rem; font-size: .85rem; }
.login-footer a { color: var(--muted); }
.login-footer a:hover { color: var(--primary); }

/* Utility */
.mobile-stack {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
}
.mobile-stack .btn { flex: 1 1 auto; min-width: min(100%, 8rem); }