:root {
  --teal: #0A9B9B;
  --teal-2: #14B8A6;
  --teal-3: #06B6D4;
  --teal-4: #22D3EE;
  --teal-dark: #0E7490;
  --dark: #0B1220;
  --dark-2: #111827;
  --dark-3: #1F2937;
  --bg: #F7F8FA;
  --bg-2: #EFF2F6;
  --card: #ffffff;
  --border: #E4E7EB;
  --border-soft: #EEF0F3;
  --muted: #6B7280;
  --muted-2: #9CA3AF;
  --text: #0D1B2A;
  --error: #DC2626;
  --amber: #F59E0B;
  --green: #10B981;
  --shadow-sm: 0 1px 2px rgba(13,27,42,0.04), 0 1px 3px rgba(13,27,42,0.06);
  --shadow: 0 4px 12px -2px rgba(13,27,42,0.08), 0 2px 4px -2px rgba(13,27,42,0.06);
  --shadow-lg: 0 24px 48px -12px rgba(13,27,42,0.22), 0 8px 16px -6px rgba(13,27,42,0.10);
  --glow-teal: 0 0 24px rgba(20,184,166,0.35);
  --glow-teal-strong: 0 0 40px rgba(20,184,166,0.5), 0 0 80px rgba(6,182,212,0.25);
  --gradient: linear-gradient(135deg, #14B8A6 0%, #0A9B9B 45%, #0891B2 100%);
  --gradient-vivid: linear-gradient(135deg, #22D3EE 0%, #14B8A6 40%, #0891B2 100%);
  --gradient-soft: linear-gradient(135deg, rgba(20,184,166,0.10) 0%, rgba(6,182,212,0.10) 100%);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  font-size: 14.5px;
  line-height: 1.55;
  font-feature-settings: 'cv11', 'ss01', 'ss03';
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Animated mesh-gradient background behind the whole app */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(600px circle at 10% 20%, rgba(20,184,166,0.10), transparent 55%),
    radial-gradient(800px circle at 85% 85%, rgba(6,182,212,0.09), transparent 60%),
    radial-gradient(500px circle at 80% 10%, rgba(139,92,246,0.04), transparent 60%);
}

/* ────────── Topbar ────────── */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.9rem 2rem;
  background: rgba(11,18,32,0.78);
  backdrop-filter: saturate(150%) blur(18px);
  -webkit-backdrop-filter: saturate(150%) blur(18px);
  color: #fff;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  position: sticky; top: 0; z-index: 50;
}
.brand {
  display: flex; align-items: center; gap: 0.7rem;
  font-weight: 700;
  font-size: 1.08rem;
  letter-spacing: -0.025em;
  color: #fff;
  text-decoration: none;
}
.brand-mark {
  width: 30px; height: 30px; display: block;
  filter: drop-shadow(0 0 10px rgba(20,184,166,0.45));
  transition: transform 0.4s cubic-bezier(.4,0,.2,1), filter 0.3s;
}
.brand:hover .brand-mark {
  transform: rotate(-8deg) scale(1.06);
  filter: drop-shadow(0 0 14px rgba(20,184,166,0.7));
}
.brand-text {
  background: linear-gradient(135deg, #67E8F9 0%, #14B8A6 60%, #22D3EE 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 800;
  letter-spacing: -0.025em;
}
.topbar .actions { display: flex; gap: 0.65rem; align-items: center; }
.topbar .user-chip {
  display: inline-flex; align-items: center; gap: 0.55rem;
  padding: 0.3rem 0.8rem 0.3rem 0.35rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: 999px;
  font-size: 0.82rem;
  color: #E2E8F0;
  backdrop-filter: blur(10px);
}
.topbar .user-chip .avatar {
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--gradient-vivid);
  color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.7rem; font-weight: 700;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.1), 0 0 12px rgba(20,184,166,0.4);
}
.topbar button.ghost {
  background: transparent;
  color: #94A3B8;
  border-color: rgba(255,255,255,0.1);
}
.topbar button.ghost:hover {
  background: rgba(255,255,255,0.06);
  color: #fff;
  border-color: rgba(255,255,255,0.18);
}

/* ────────── Layout ────────── */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2.5rem 2rem 3rem;
}
.row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.75rem; gap: 1.25rem; }

h1 { font-size: 2.25rem; letter-spacing: -0.035em; margin: 0 0 0.5rem; font-weight: 800; }
h2 {
  font-size: 1.75rem;
  letter-spacing: -0.03em;
  margin: 0 0 0.5rem;
  font-weight: 800;
}
h3 { font-size: 1.1rem; letter-spacing: -0.015em; margin: 0 0 0.8rem; font-weight: 600; display:flex;align-items:center;gap:0.5rem; }

.muted { color: var(--muted); font-size: 0.88rem; }
.hidden { display: none !important; }
.error { color: var(--error); margin-top: 0.5rem; font-size: 0.88rem; font-weight: 500; }

/* ────────── Cards ────────── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

/* ────────── Forms ────────── */
label {
  display: block;
  margin-bottom: 1rem;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
label .hint { text-transform: none; font-weight: 500; font-size: 0.78rem; color: var(--muted-2); margin-left: 0.4rem; letter-spacing: 0; }
input, textarea, select {
  display: block; width: 100%;
  margin-top: 0.4rem;
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font: inherit;
  color: var(--text);
  background: #fff;
  transition: border-color 0.15s, box-shadow 0.2s, background 0.15s;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 4px rgba(20,184,166,0.15);
}
input::placeholder, textarea::placeholder { color: var(--muted-2); }

/* ────────── Buttons ────────── */
button {
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-sm);
  font: inherit;
  font-weight: 600;
  font-size: 0.87rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.12s cubic-bezier(.4,0,.2,1), background 0.18s, border-color 0.18s, box-shadow 0.2s, filter 0.2s;
  letter-spacing: 0.005em;
  position: relative;
}
button:active { transform: translateY(1px); }
button.primary {
  background: var(--gradient-vivid);
  color: #fff;
  border: 1px solid transparent;
  box-shadow: 0 4px 14px rgba(10,155,155,0.30), 0 0 0 1px rgba(255,255,255,0.1) inset;
  font-weight: 700;
  letter-spacing: 0.01em;
}
button.primary::after {
  content: ''; position: absolute; inset: 0; border-radius: inherit;
  background: linear-gradient(135deg, rgba(255,255,255,0.18), transparent 50%);
  pointer-events: none;
}
button.primary:hover {
  box-shadow: 0 8px 24px rgba(10,155,155,0.45), 0 0 0 1px rgba(255,255,255,0.15) inset, var(--glow-teal-strong);
  filter: brightness(1.08);
  transform: translateY(-1px);
}
button.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
button.ghost:hover { background: var(--bg-2); border-color: var(--muted-2); }
button.danger {
  background: transparent;
  color: var(--error);
  border: 1px solid #FECACA;
}
button.danger:hover { background: #FEF2F2; }

/* ────────── Login ────────── */
#loginPanel {
  max-width: 440px;
  margin: 5rem auto 2rem;
  position: relative;
  overflow: hidden;
  padding: 2.75rem 2rem 2.25rem;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.7);
  backdrop-filter: saturate(160%) blur(22px);
  -webkit-backdrop-filter: saturate(160%) blur(22px);
  border: 1px solid rgba(255,255,255,0.6);
  box-shadow:
    0 30px 60px -20px rgba(13,27,42,0.18),
    0 10px 24px -8px rgba(13,27,42,0.08),
    0 0 0 1px rgba(255,255,255,0.5) inset;
}
#loginPanel::before {
  content: '';
  position: absolute;
  inset: -40%;
  background:
    radial-gradient(ellipse at top, rgba(20,184,166,0.22), transparent 55%),
    radial-gradient(ellipse at bottom right, rgba(6,182,212,0.18), transparent 55%);
  pointer-events: none;
  z-index: 0;
  animation: loginGlow 12s ease-in-out infinite alternate;
}
@keyframes loginGlow {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(5%, -3%) scale(1.05); }
}
#loginPanel > * { position: relative; z-index: 1; }
#loginPanel .login-logo {
  width: 64px; height: 64px;
  margin: 0 auto 1.1rem;
  display: block;
  filter: drop-shadow(0 8px 24px rgba(10,155,155,0.35));
  animation: logoBreath 4s ease-in-out infinite;
}
@keyframes logoBreath {
  0%, 100% { transform: scale(1); filter: drop-shadow(0 8px 24px rgba(10,155,155,0.35)); }
  50% { transform: scale(1.04); filter: drop-shadow(0 10px 30px rgba(10,155,155,0.55)); }
}
#loginPanel h2 {
  text-align: center;
  background: linear-gradient(135deg, #14B8A6 0%, #0A9B9B 50%, #06B6D4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 0.4rem;
  letter-spacing: -0.035em;
}
#loginPanel .muted { text-align: center; margin-bottom: 1.6rem; }

.login-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  padding: 3px;
  background: var(--bg-2);
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
  border: 1px solid var(--border);
}
.login-tab {
  padding: 0.55rem;
  font-size: 0.85rem;
  font-weight: 600;
  background: transparent;
  color: var(--muted);
  border-radius: 6px;
  border: none;
  cursor: pointer;
  text-transform: none;
  letter-spacing: 0;
}
.login-tab.active {
  background: #fff;
  color: var(--teal);
  box-shadow: var(--shadow-sm), 0 0 0 1px rgba(20,184,166,0.15);
}

/* ────────── Tabs (main) ────────── */
.tabs {
  display: flex;
  gap: 0.2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
  padding: 0 0.25rem;
}
.tab {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 0.75rem 1.1rem;
  margin-bottom: -1px;
  color: var(--muted);
  font-weight: 600;
  cursor: pointer;
  border-radius: 0;
  font-size: 0.92rem;
  letter-spacing: -0.005em;
  position: relative;
}
.tab:hover { color: var(--text); background: transparent; }
.tab.active {
  color: var(--teal);
}
.tab.active::after {
  content: '';
  position: absolute; bottom: -1px; left: 0; right: 0;
  height: 2px;
  background: var(--gradient-vivid);
  border-radius: 2px 2px 0 0;
  box-shadow: 0 -2px 8px rgba(20,184,166,0.4);
}

/* ────────── Project cards ────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}
.project-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.22s cubic-bezier(.4,0,.2,1), box-shadow 0.22s, border-color 0.18s;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.project-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient-vivid);
  opacity: 0;
  transition: opacity 0.2s;
}
.project-card::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 300%; height: 100%;
  background: linear-gradient(90deg, transparent 40%, rgba(20,184,166,0.05) 50%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(20,184,166,0.15), 0 20px 40px -20px rgba(20,184,166,0.3);
  border-color: rgba(20,184,166,0.35);
}
.project-card:hover::before { opacity: 1; }
.project-card:hover::after {
  opacity: 1;
  left: 100%;
  transition: left 0.9s cubic-bezier(.4,0,.2,1), opacity 0.3s;
}
.project-card .pc-delete {
  position: absolute;
  top: 0.55rem;
  right: 0.55rem;
  width: 26px;
  height: 26px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  line-height: 1;
  color: var(--muted-2);
  background: var(--bg-2);
  border: 1px solid transparent;
  border-radius: 6px;
  opacity: 0;
  transition: opacity 0.15s, background 0.15s, color 0.15s, border-color 0.15s, transform 0.15s;
  z-index: 2;
  font-weight: 400;
}
.project-card:hover .pc-delete { opacity: 1; }
.project-card .pc-delete:hover {
  background: #FEF2F2;
  color: var(--error);
  border-color: #FECACA;
  transform: scale(1.08);
}

.project-card .code {
  font-family: ui-monospace, 'SF Mono', Consolas, monospace;
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--gradient-vivid);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: 0.14em;
  line-height: 1;
  margin-bottom: 0.8rem;
  filter: drop-shadow(0 0 20px rgba(20,184,166,0.25));
}
.project-card .title {
  font-weight: 600; font-size: 1.04rem; margin: 0.4rem 0 0.65rem;
  color: var(--text);
  letter-spacing: -0.015em;
}
.project-card .status {
  display: inline-flex; align-items: center; gap: 0.35rem;
  font-size: 0.68rem;
  text-transform: uppercase;
  padding: 0.22rem 0.65rem;
  border-radius: 999px;
  background: var(--bg-2);
  color: var(--muted);
  letter-spacing: 0.09em;
  font-weight: 700;
}
.project-card .status.active {
  background: linear-gradient(135deg, #D1FAE5, #A7F3D0);
  color: #065F46;
  box-shadow: 0 0 0 1px rgba(16,185,129,0.15);
}
.project-card .status.active::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: #10B981;
  animation: statusPulse 1.6s infinite ease-in-out;
}
.project-card .status.completed {
  background: linear-gradient(135deg, #DBEAFE, #BFDBFE);
  color: #1E40AF;
}
.project-card .status.draft { background: var(--bg-2); color: var(--muted); }

@keyframes statusPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(16,185,129,0.7); transform: scale(1); }
  50% { box-shadow: 0 0 0 6px rgba(16,185,129,0); transform: scale(1.1); }
}

/* ────────── Dialogs ────────── */
dialog {
  border: none;
  border-radius: var(--radius-lg);
  padding: 2rem;
  max-width: 520px;
  width: 90%;
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(20,184,166,0.08);
  background: var(--card);
}
dialog::backdrop {
  background: rgba(13,27,42,0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
dialog h3 {
  letter-spacing: -0.02em;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}
.dialog-actions { display: flex; gap: 0.75rem; justify-content: flex-end; margin-top: 1.75rem; }

.code-display {
  font-family: ui-monospace, 'SF Mono', Consolas, monospace;
  font-size: 3.5rem;
  font-weight: 800;
  background: var(--gradient-vivid);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-align: center;
  letter-spacing: 0.3em;
  padding: 1.5rem 0;
  background-color: #F0FDFA;
  border-radius: var(--radius);
  margin: 1rem 0;
  border: 1px solid #A7F3D0;
  box-shadow: inset 0 0 0 1px rgba(20,184,166,0.08), 0 0 30px rgba(20,184,166,0.15);
  position: relative;
  filter: drop-shadow(0 0 30px rgba(20,184,166,0.25));
}

/* ────────── Data table ────────── */
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 0.5rem;
  box-shadow: var(--shadow-sm);
}
.data-table th {
  text-align: left;
  padding: 0.85rem 1.1rem;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  font-weight: 700;
  background: linear-gradient(180deg, var(--bg-2) 0%, rgba(239,242,246,0) 100%);
  border-bottom: 1px solid var(--border);
}
.data-table td {
  padding: 0.85rem 1.1rem;
  border-bottom: 1px solid var(--border-soft);
  font-size: 0.92rem;
}
.data-table tbody tr { transition: background 0.12s; }
.data-table tbody tr:hover { background: var(--bg-2); }
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table .ext-code {
  font-family: ui-monospace, 'SF Mono', Consolas, monospace;
  background: var(--gradient-vivid);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}
.data-table .row-actions { text-align: right; white-space: nowrap; }
.data-table .row-actions button {
  padding: 0.3rem 0.75rem;
  font-size: 0.78rem;
  margin-left: 0.35rem;
}

/* ────────── Credentials box ────────── */
.creds-box {
  background: linear-gradient(135deg, #ECFDF5 0%, #ECFEFF 50%, #EFF6FF 100%);
  border: 1px solid #A7F3D0;
  border-radius: var(--radius);
  padding: 1.35rem;
  margin: 1rem 0;
  font-size: 0.9rem;
  box-shadow: 0 0 0 1px rgba(20,184,166,0.05), 0 10px 30px -15px rgba(20,184,166,0.25);
}
.creds-box > div {
  display: grid;
  grid-template-columns: 9rem 1fr;
  margin: 0.55rem 0;
  align-items: center;
}
.creds-box strong { color: var(--muted); font-weight: 700; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; }
.creds-box code {
  background: #fff;
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-family: ui-monospace, 'SF Mono', Consolas, monospace;
  font-size: 0.9rem;
  word-break: break-all;
}