*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root {
  --red: #8B1A1A;
  --red-hover: #a82020;
  --red-soft: rgba(139,26,26,0.12);
  --nav-active-bg: rgba(139,26,26,0.12);
  --nav-active-color: #8B1A1A;
  --orange: #E85D04;
  --gold: #F4A261;
  --trans: all 0.22s cubic-bezier(.4,0,.2,1);
}

[data-theme="dark"] {
  --nav-active-bg: rgba(224,90,90,0.15);
  --nav-active-color: #e05a5a;
  --bg: #1e2330;
  --bg2: #2e3a52;
  --bg3: #374560;
  --bg4: #405070;
  --border: rgba(255,255,255,0.12);
  --border2: rgba(255,255,255,0.22);
  --text: #eef1f7;
  --text2: #a8b4c8;
  --text3: #7a8ba3;
  --link: #e05a5a;
  --link-hover: #f07070;
  --card: #161b22;
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
}

[data-theme="light"] {
  --nav-active-bg: rgba(139,26,26,0.10);
  --nav-active-color: #8B1A1A;
  --link: #8B1A1A;
  --link-hover: #a02020;
  --bg: #f5f0ea;
  --bg2: #ffffff;
  --bg3: #f0ebe3;
  --bg4: #e8e2d9;
  --border: rgba(0,0,0,0.08);
  --border2: rgba(0,0,0,0.14);
  --text: #1a1410;
  --text2: #5a4f44;
  --text3: #8a7f74;
  --card: #ffffff;
  --shadow: 0 8px 32px rgba(0,0,0,0.10);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 17px;
  transition: background 0.3s, color 0.3s;
}

/* ===== LOGIN PAGE ===== */
#login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.login-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(139,26,26,0.15) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 20%, rgba(228,93,4,0.08) 0%, transparent 50%);
}

[data-theme="light"] .login-bg {
  background: radial-gradient(ellipse at 20% 50%, rgba(139,26,26,0.08) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 20%, rgba(228,93,4,0.05) 0%, transparent 50%);
}

.login-grid-bg {
  position: absolute; inset: 0;
  background-image: linear-gradient(var(--border) 1px, transparent 1px),
                    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

.login-card {
  position: relative; z-index: 1;
  width: 100%; max-width: 440px;
  padding: 48px 44px;
  background: var(--card);
  border: 1px solid var(--border2);
  border-radius: 20px;
  box-shadow: var(--shadow), 0 0 0 1px var(--border);
  animation: slideUp 0.5s ease;
}

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

.login-logo {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 32px;
}

.login-logo-icon {
  width: 48px; height: 48px;
  background: var(--red);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
}

.login-logo h1 {
  font-family: 'Playfair Display', serif;
  font-size: 22px; font-weight: 700;
  color: var(--text);
  line-height: 1.1;
}

.login-logo span {
  font-size: 11px; color: var(--text3);
  font-weight: 400; letter-spacing: 0.05em;
  display: block;
}

.login-title {
  font-size: 26px; font-weight: 600;
  margin-bottom: 6px;
}

.login-sub {
  color: var(--text2); font-size: 14px;
  margin-bottom: 32px;
}

.form-group { margin-bottom: 18px; }
.form-label {
  display: block;
  font-size: 13px; font-weight: 500;
  color: var(--text2); margin-bottom: 6px;
}
.form-input {
  width: 100%; padding: 11px 14px;
  background: var(--bg3);
  border: 1.5px solid var(--border2);
  border-radius: 10px;
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 17px;
  transition: var(--trans);
  outline: none;
}
.form-input:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 3px var(--red-soft);
}

.btn-primary {
  width: 100%; padding: 12px;
  background: var(--red);
  color: white; font-weight: 600;
  font-size: 17px; border: none;
  border-radius: 10px; cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  transition: var(--trans);
  margin-top: 8px;
}
.btn-primary:hover { background: var(--red-hover); transform: translateY(-1px); }

.divider {
  display: flex; align-items: center; gap: 12px;
  margin: 20px 0;
  color: var(--text3); font-size: 13px;
}
.divider::before, .divider::after {
  content: ''; flex: 1;
  height: 1px; background: var(--border2);
}


.btn-google:hover { border-color: var(--border2); background: var(--bg4); }

.login-footer {
  margin-top: 24px; text-align: center;
  font-size: 13px; color: var(--text3);
}
.login-footer a { color: var(--red); text-decoration: none; font-weight: 500; }

/* ===== DASHBOARD ===== */
#dashboard-page { display: none; min-height: 100vh; }

/* Sidebar */
.sidebar {
  position: fixed; left: 0; top: 0; bottom: 0;
  width: 240px;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  transition: var(--trans);
  z-index: 100;
}

.sidebar-logo {
  padding: 24px 20px 20px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px;
}
.sidebar-logo-icon {
  width: 36px; height: 36px;
  background: var(--red); border-radius: 9px;
  display: flex; align-items: center; justify-content: center; font-size: 16px;
}
.sidebar-logo-text {
  font-family: 'Playfair Display', serif;
  font-size: 16px; font-weight: 700; color: var(--text);
}

.sidebar-nav { flex: 1; padding: 16px 10px; overflow-y: auto; }

.nav-section-label {
  font-size: 10px; font-weight: 600; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--text3);
  padding: 8px 10px 4px; margin-top: 8px;
}

.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: 8px;
  cursor: pointer; transition: var(--trans);
  color: var(--text2); font-size: 16px; font-weight: 400;
  margin-bottom: 2px;
}
.nav-item:hover { background: var(--bg3); color: var(--text); }
.nav-item.active { background: var(--nav-active-bg, var(--red-soft)); color: var(--nav-active-color, var(--red)); font-weight: 600; }
.nav-item .nav-icon { font-size: 16px; width: 20px; text-align: center; }
.nav-badge {
  margin-left: auto; background: var(--red);
  color: white; font-size: 10px; font-weight: 700;
  padding: 1px 6px; border-radius: 10px;
}

.sidebar-bottom {
  padding: 16px 10px;
  border-top: 1px solid var(--border);
}

.user-block {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 10px;
  background: var(--bg3);
}
.user-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--red); display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700; color: white; flex-shrink: 0;
}
.user-name { font-size: 13px; font-weight: 600; color: var(--text); }
.user-plan { font-size: 11px; color: var(--text3); }

/* Main content */
.main-content {
  margin-left: 240px;
  min-height: 100vh;
}

/* Topbar */
.topbar {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 0 28px;
  height: 60px;
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 50;
}

.topbar-left { display: flex; align-items: center; gap: 16px; }
.topbar-title { font-size: 19px; font-weight: 600; }
.topbar-sub { font-size: 15px; color: var(--text3); }

.topbar-right { display: flex; align-items: center; gap: 12px; }

.topbar-btn {
  width: 36px; height: 36px; border-radius: 9px;
  border: 1px solid var(--border2); background: var(--bg3);
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  font-size: 16px; color: var(--text2); transition: var(--trans);
}
.topbar-btn:hover { background: var(--bg4); color: var(--text); }

.lang-toggle {
  display: flex; gap: 2px;
  background: var(--bg3); border: 1px solid var(--border2);
  border-radius: 9px; padding: 3px;
}
.lang-opt {
  padding: 4px 10px; border-radius: 6px; cursor: pointer;
  font-size: 12px; font-weight: 600; color: var(--text2); transition: var(--trans);
}
.lang-opt.active { background: var(--red); color: white; }

/* Content area */
.content { padding: 28px; }

/* Stats cards */
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  margin-bottom: 24px;
}
.stats-grid-5 { grid-template-columns: repeat(5, 1fr); }

.stat-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; padding: 20px 22px;
  box-shadow: var(--shadow);
  transition: var(--trans);
  animation: fadeIn 0.4s ease both;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(0,0,0,0.3); }
@keyframes fadeIn { from{opacity:0;transform:translateY(10px)} to{opacity:1;transform:none} }
@keyframes spin { from{transform:rotate(0deg)} to{transform:rotate(360deg)} }

.stat-card:nth-child(1){animation-delay:0.05s}
.stat-card:nth-child(2){animation-delay:0.1s}
.stat-card:nth-child(3){animation-delay:0.15s}
.stat-card:nth-child(4){animation-delay:0.2s}

.stat-icon {
  width: 40px; height: 40px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; margin-bottom: 14px;
}
.stat-icon.red { background: rgba(139,26,26,0.15); }
.stat-icon.orange { background: rgba(228,93,4,0.15); }
.stat-icon.blue { background: rgba(59,130,246,0.15); }
.stat-icon.green { background: rgba(34,197,94,0.15); }

.stat-value {
  font-size: 28px; font-weight: 700;
  font-family: 'Playfair Display', serif; margin-bottom: 4px;
}
.stat-label { font-size: 15px; color: var(--text2); }
.stat-change { font-size: 14px; margin-top: 6px; }
.stat-change.up { color: #22c55e; }
.stat-change.down { color: #ef4444; }

/* Content grid */
.content-grid {
  display: grid; grid-template-columns: 1fr 340px; gap: 20px;
  margin-bottom: 24px;
}

.panel-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; overflow: hidden;
  box-shadow: var(--shadow);
  animation: fadeIn 0.5s ease 0.25s both;
}

.panel-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.panel-title { font-size: 17px; font-weight: 600; }
.panel-action {
  font-size: 15px; color: var(--link, var(--red)); cursor: pointer;
  font-weight: 500; text-decoration: none;
}
.panel-action:hover { text-decoration: underline; color: var(--link-hover, var(--red)); }

.panel-body { padding: 20px 22px; }

/* Table */
.firing-table { width: 100%; border-collapse: collapse; }
.firing-table th {
  text-align: left; font-size: 13px; font-weight: 600;
  color: var(--text3); text-transform: uppercase; letter-spacing: 0.06em;
  padding: 0 0 12px;
}
.firing-table td {
  padding: 12px 0; border-top: 1px solid var(--border);
  font-size: 16px; color: var(--text);
}
.firing-table tr:hover td { color: var(--red); cursor: pointer; }

.firing-badge {
  display: inline-block; padding: 2px 10px; border-radius: 20px;
  font-size: 11px; font-weight: 600;
}
.badge-bisque { background: rgba(244,162,97,0.15); color: #F4A261; }
.badge-glaze { background: rgba(139,26,26,0.15); color: #c05050; }
.badge-raku { background: rgba(59,130,246,0.15); color: #60a5fa; }

.cost-tag { color: var(--gold); font-weight: 600; }

/* Chart */
.chart-wrap { position: relative; height: 220px; }

/* Recent firings list */
.kiln-list { display: flex; flex-direction: column; gap: 12px; }
.kiln-item {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 16px; background: var(--bg3);
  border-radius: 10px; border: 1px solid var(--border);
  transition: var(--trans);
}
.kiln-item:hover { border-color: var(--red); transform: translateX(3px); }
.kiln-num {
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--red); color: white;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 14px; flex-shrink: 0;
}
.kiln-info { flex: 1; }
.kiln-name { font-size: 16px; font-weight: 600; margin-bottom: 2px; }
.kiln-meta { font-size: 14px; color: var(--text3); }
.kiln-cost { font-size: 16px; font-weight: 600; color: var(--gold); }

/* Full firings table section */
.firings-section { animation: fadeIn 0.5s ease 0.3s both; }

/* Filters bar */
.filters-bar {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 18px; flex-wrap: wrap;
}
.filter-input {
  padding: 8px 14px; background: var(--bg3);
  border: 1.5px solid var(--border2); border-radius: 9px;
  color: var(--text); font-family: 'DM Sans', sans-serif; font-size: 14px;
  outline: none; transition: var(--trans);
}
.filter-input:focus { border-color: var(--red); }
.filter-select {
  padding: 8px 14px; background: var(--bg3);
  border: 1.5px solid var(--border2); border-radius: 9px;
  color: var(--text); font-family: 'DM Sans', sans-serif; font-size: 14px;
  outline: none; cursor: pointer;
}
.btn-export {
  padding: 8px 18px; background: var(--red); color: white;
  border: none; border-radius: 9px; cursor: pointer;
  font-family: 'DM Sans', sans-serif; font-size: 14px; font-weight: 600;
  transition: var(--trans); margin-left: auto;
}
.btn-export:hover { background: var(--red-hover); }
.active-filter { background: var(--red) !important; color: white !important; border-color: var(--red) !important; }

/* Detail modal */
.modal-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.6); backdrop-filter: blur(4px);
  z-index: 200; align-items: center; justify-content: center;
}
.modal-overlay.show { display: flex; }
.modal {
  background: var(--card); border: 1px solid var(--border2);
  border-radius: 18px; width: 90%; max-width: 600px;
  max-height: 85vh; overflow-y: auto;
  box-shadow: 0 24px 64px rgba(0,0,0,0.5);
  animation: modalIn 0.25s ease;
}
@keyframes modalIn {
  from{opacity:0;transform:scale(0.95)} to{opacity:1;transform:none}
}
.modal-header {
  padding: 24px 28px 18px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-title { font-size: 20px; font-weight: 700; font-family: 'Playfair Display', serif; }
.modal-close {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--bg3); border: 1px solid var(--border2);
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  font-size: 16px; color: var(--text2); transition: var(--trans);
}
.modal-close:hover { background: var(--bg4); color: var(--text); }
.modal-body { padding: 24px 28px; }
.detail-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 16px; margin-bottom: 20px;
}
.detail-item { }
.detail-label { font-size: 12px; color: var(--text3); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 4px; }
.detail-value { font-size: 16px; font-weight: 600; color: var(--text); }
.detail-notes {
  background: var(--bg3); border-radius: 10px; padding: 16px;
  font-size: 16px; color: var(--text2); line-height: 1.7;
  border: 1px solid var(--border);
}
.curve-steps { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.curve-step {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px; background: var(--bg3);
  border-radius: 8px; border: 1px solid var(--border);
}
.step-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.step-dot.heat { background: #ef4444; }
.step-dot.hold { background: #3b82f6; }
.step-dot.cool { background: #06b6d4; }
.step-text { font-size: 13px; color: var(--text2); }

/* TOAST */
.toast {
  position: fixed; bottom: 28px; right: 28px;
  background: var(--bg2); border: 1px solid var(--border2);
  border-radius: 12px; padding: 14px 20px;
  display: flex; align-items: center; gap: 10px;
  box-shadow: var(--shadow); z-index: 300;
  transform: translateY(80px); opacity: 0;
  transition: all 0.3s cubic-bezier(.34,1.56,.64,1);
}
.toast.show { transform: none; opacity: 1; }
.toast-icon { font-size: 18px; }
.toast-text { font-size: 14px; font-weight: 500; }

/* Pages */
.page { display: none; }
.page.active { display: block; }

/* Responsive */
/* ===== RESPONSIVE ===== */
@media (max-width: 1100px) {
  .stats-grid { grid-template-columns: repeat(2,1fr); }
  .content-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  /* Sidebar hidden by default on mobile */
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 200;
  }
  .sidebar.open { transform: translateX(0); }

  /* Overlay when sidebar open */
  .sidebar-overlay {
    display: none;
    position: fixed; top:0; left:0; right:0; bottom:0;
    background: rgba(0,0,0,0.5);
    z-index: 199;
  }
  .sidebar-overlay.show { display: block; }

  /* Main content full width */
  .main-content { margin-left: 0; }

  /* Topbar adjustments */
  .topbar { padding: 0 16px; }
  .topbar-title { font-size: 15px; }
  .topbar-sub { display: none; }
  .topbar-right { gap: 6px; }

  /* Hamburger button */
  .ham-btn {
    display: flex !important;
    width: 36px; height: 36px; border-radius: 9px;
    border: 1px solid var(--border2); background: var(--bg3);
    cursor: pointer; align-items: center; justify-content: center;
    font-size: 18px; color: var(--text2);
    flex-shrink: 0;
  }

  /* Stats grid */
  .stats-grid { grid-template-columns: repeat(2,1fr); gap: 10px; }
  .stats-grid-5 { grid-template-columns: repeat(2,1fr); }

  /* Content padding */
  .content { padding: 14px; }

  /* Overview cards */
  .content-grid { grid-template-columns: 1fr; gap: 12px; }
  .overview-bottom { grid-template-columns: 1fr !important; }

  /* Panel cards */
  .panel-card { border-radius: 10px; }
  .panel-header { padding: 12px 14px; }
  .panel-body { padding: 12px 14px; }

  /* Tables - horizontal scroll */
  .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .data-table { min-width: 600px; }

  /* Filters wrap */
  .filters-bar { flex-wrap: wrap; gap: 8px; }
  .filter-select, .filter-input { font-size: 13px; }

  /* Forms */
  .form-row-2 { grid-template-columns: 1fr !important; }
  .modal-inner { width: 95vw !important; max-height: 90vh; overflow-y: auto; }

  /* Help modal */
  .help-modal-inner { width: 98vw; height: 95vh; max-height: 95vh; }
  .help-nav { width: 150px; }
  .help-nav-item { font-size: 12px; padding: 8px 10px; }

  /* Reports grid */
  #page-reports > div { grid-template-columns: 1fr !important; }

  /* Mobile topbar */
  .topbar-sub { display: none; }
  .topbar-title { font-size: 14px; }
  .topbar-right { gap: 4px; }
  .topbar-btn { width: 30px; height: 30px; font-size: 13px; }
  .topbar { padding: 0 10px; gap: 6px; overflow: hidden; }
  .lang-opt { padding: 3px 7px; font-size: 11px; }
  .topbar-right button[onclick*="renderHelp"] { padding: 4px 8px; font-size: 12px; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .help-body { flex-direction: column; }
  .help-nav { width: 100%; border-right: none; border-bottom: 1px solid var(--border); max-height: 120px; display: flex; flex-wrap: wrap; padding: 4px; gap: 2px; overflow-y: auto; }
  .help-nav-item { padding: 5px 8px; font-size: 11px; border-radius: 6px; border-left: none !important; }
  .help-nav-item.active { border-bottom: 2px solid var(--red); }
}

/* ===== HELP MODAL ===== */
.help-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.7);display:none;align-items:center;justify-content:center;z-index:2000}
.help-modal-overlay.show{display:flex}
.help-modal-inner{background:var(--bg2);border-radius:16px;width:900px;max-width:95vw;height:80vh;max-height:700px;display:flex;flex-direction:column;border:1px solid var(--border2);overflow:hidden}
.help-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border);flex-shrink:0}
.help-body{display:flex;flex:1;overflow:hidden}
.help-nav{width:200px;flex-shrink:0;border-right:1px solid var(--border);overflow-y:auto;padding:8px 0}
.help-nav-item{padding:9px 16px;cursor:pointer;font-size:13px;transition:background 0.15s;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.help-nav-item:hover{background:var(--bg3)}
.help-nav-item.active{background:rgba(139,26,26,0.15);color:var(--red);font-weight:600;border-left:3px solid var(--red)}
.help-content{flex:1;overflow-y:auto;padding:20px 24px}
.help-content h3{font-size:15px;font-weight:700;color:var(--red);margin:16px 0 6px;padding-bottom:4px;border-bottom:1px solid var(--border)}
.help-content h4{font-size:14px;font-weight:600;color:var(--text);margin:12px 0 4px}
.help-content p{font-size:13px;color:var(--text2);line-height:1.6;margin-bottom:8px}
.help-content ul{margin:4px 0 10px 20px}
.help-content li{font-size:13px;color:var(--text2);line-height:1.7}
.help-content strong{color:var(--text);font-weight:600}