@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@300;400;500&display=swap');

:root {
  --bg: #faf8ff;
  --surface: #ffffff;
  --surface2: #f3f0ff;
  --border: #e4deff;
  --accent: #7c3aed;
  --accent2: #f43f5e;
  --accent3: #059669;
  --accent4: #f59e0b;
  --accent5: #0ea5e9;
  --text: #1e1b4b;
  --text-muted: #6d6a8a;
  --sidebar-w: 260px;
  --radius: 14px;
  --font-sans: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --transition: 0.18s cubic-bezier(0.4, 0, 0.2, 1);

  /* Sidebar gradient stops */
  --grad-sidebar: linear-gradient(180deg, #4f46e5 0%, #7c3aed 40%, #a21caf 100%);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  min-height: 100vh;
  display: flex;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── SIDEBAR ── */
.sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--grad-sidebar);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  z-index: 100;
  transition: transform var(--transition);
  box-shadow: 4px 0 24px rgba(79,70,229,0.25);
}

.sidebar-logo {
  padding: 24px 20px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.15);
}

.sidebar-logo a {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.logo-text {
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.logo-text span { color: #fde68a; }

.sidebar-tagline {
  font-size: 0.65rem;
  color: rgba(255,255,255,0.6);
  font-family: var(--font-mono);
  margin-top: 2px;
  letter-spacing: 0.05em;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 0;
  overflow-y: auto;
}

.nav-section {
  padding: 10px 16px 4px;
  font-size: 0.62rem;
  font-weight: 700;
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: var(--font-mono);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  text-decoration: none;
  color: rgba(255,255,255,0.75);
  font-size: 0.88rem;
  font-weight: 500;
  transition: all var(--transition);
  border-left: 3px solid transparent;
  margin: 1px 8px;
  border-radius: 8px;
}

.nav-item:hover {
  color: #fff;
  background: rgba(255,255,255,0.12);
  border-left-color: transparent;
}

.nav-item.active {
  color: #fff;
  background: rgba(255,255,255,0.2);
  border-left-color: #fde68a;
  font-weight: 700;
}

.nav-item .nav-icon {
  font-size: 1rem;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid rgba(255,255,255,0.15);
  font-size: 0.72rem;
  color: rgba(255,255,255,0.5);
  font-family: var(--font-mono);
  line-height: 1.5;
}

.sidebar-footer a { color: #fde68a; text-decoration: none; }
.sidebar-footer a:hover { text-decoration: underline; }

/* ── MAIN ── */
.main {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── TOPBAR ── */
.topbar {
  position: sticky;
  top: 0;
  background: rgba(250,248,255,0.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding: 0 32px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 50;
}

.topbar-title {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
}

.topbar-badge {
  font-size: 0.65rem;
  background: linear-gradient(135deg, #7c3aed, #f43f5e);
  color: #fff;
  padding: 4px 10px;
  border-radius: 20px;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.03em;
}

.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.3rem;
  cursor: pointer;
  padding: 4px;
}

/* ── PAGE CONTENT ── */
.page-content {
  padding: 32px;
  max-width: 900px;
  width: 100%;
}

.page-header {
  margin-bottom: 28px;
}

.page-header h1 {
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 6px;
  background: linear-gradient(135deg, #4f46e5, #a21caf);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-header p {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* ── CARDS ── */
.card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 2px 12px rgba(124,58,237,0.07);
}

.card-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-family: var(--font-mono);
  margin-bottom: 10px;
}

/* ── INPUTS ── */
textarea, input[type="text"], input[type="number"], input[type="password"], select {
  width: 100%;
  background: var(--surface2);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  padding: 12px 14px;
  resize: vertical;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  line-height: 1.6;
}

textarea:focus, input:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.12);
}

textarea { min-height: 140px; }

/* ── STATS BAR ── */
.stats-bar {
  display: flex;
  gap: 16px;
  padding: 10px 14px;
  background: linear-gradient(135deg, rgba(124,58,237,0.06), rgba(244,63,94,0.05));
  border: 1.5px solid var(--border);
  border-radius: 10px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.stat {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.stat strong { color: var(--accent); font-weight: 600; }

/* ── BUTTONS ── */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0;
}

.btn {
  padding: 9px 18px;
  border-radius: 10px;
  font-family: var(--font-sans);
  font-size: 0.83rem;
  font-weight: 700;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: all var(--transition);
  letter-spacing: 0.01em;
}

.btn-primary {
  background: linear-gradient(135deg, #4f46e5, #7c3aed);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 3px 12px rgba(124,58,237,0.35);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #4338ca, #6d28d9);
  box-shadow: 0 4px 18px rgba(124,58,237,0.45);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--surface);
  color: var(--accent);
  border-color: var(--border);
}
.btn-secondary:hover {
  border-color: var(--accent);
  background: var(--surface2);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: transparent;
}
.btn-ghost:hover { color: var(--text); background: var(--surface2); }

.btn-copy {
  background: rgba(5,150,105,0.08);
  color: var(--accent3);
  border-color: rgba(5,150,105,0.2);
}
.btn-copy:hover { background: rgba(5,150,105,0.15); transform: translateY(-1px); }
.btn-copy.copied { background: rgba(5,150,105,0.2); }

/* ── OUTPUT BOXES ── */
.output-box {
  background: var(--surface2);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.7;
  min-height: 80px;
  word-break: break-all;
  white-space: pre-wrap;
  color: var(--text);
}

.output-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

/* ── GRID ── */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ── RANGE INPUT ── */
input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, #4f46e5, #a21caf);
  border-radius: 3px;
  outline: none;
  padding: 0;
  border: none;
  box-shadow: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px; height: 18px;
  background: #fff;
  border: 3px solid var(--accent);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(124,58,237,0.3);
}

/* ── CHECKBOX ── */
.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 12px 0;
}
.checkbox-item {
  display: flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text);
}
.checkbox-item input[type="checkbox"] {
  width: 16px; height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

/* ── TOAST ── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: linear-gradient(135deg, #059669, #0ea5e9);
  color: #fff;
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 0.83rem;
  font-weight: 700;
  font-family: var(--font-mono);
  z-index: 9999;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.25s ease;
  pointer-events: none;
  box-shadow: 0 4px 20px rgba(5,150,105,0.35);
}
.toast.show { opacity: 1; transform: translateY(0); }

/* ── HOME GRID ── */
.home-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 12px;
}

/* Rainbow card borders — cycles through accent colors */
.home-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 18px;
  text-decoration: none;
  color: var(--text);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: 0 2px 10px rgba(124,58,237,0.06);
  position: relative;
  overflow: hidden;
}

.home-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, #4f46e5, #7c3aed, #a21caf);
  opacity: 0;
  transition: opacity var(--transition);
}

.home-card:hover {
  border-color: var(--accent);
  box-shadow: 0 6px 24px rgba(124,58,237,0.16);
  transform: translateY(-3px);
}

.home-card:hover::before { opacity: 1; }

.home-card:nth-child(2)::before { background: linear-gradient(90deg, #f43f5e, #f59e0b); }
.home-card:nth-child(3)::before { background: linear-gradient(90deg, #059669, #0ea5e9); }
.home-card:nth-child(4)::before { background: linear-gradient(90deg, #0ea5e9, #4f46e5); }

.home-card-icon { font-size: 1.9rem; }
.home-card-name { font-weight: 800; font-size: 0.92rem; color: var(--text); }
.home-card-desc { font-size: 0.78rem; color: var(--text-muted); line-height: 1.5; }

/* ── UNICODE GRID ── */
.unicode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}

.unicode-item {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  box-shadow: 0 1px 4px rgba(124,58,237,0.05);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.unicode-item:hover {
  border-color: var(--accent);
  box-shadow: 0 3px 12px rgba(124,58,237,0.1);
}

.unicode-item-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.unicode-item-text {
  font-size: 0.92rem;
  word-break: break-all;
  line-height: 1.5;
  color: var(--text);
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #7c3aed, #a21caf);
  border-radius: 3px;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main { margin-left: 0; }
  .hamburger { display: block; }
  .page-content { padding: 20px 16px; }
  .topbar { padding: 0 16px; }
  .grid-2 { grid-template-columns: 1fr; }
  .overlay {
    display: none;
    position: fixed; inset: 0;
    background: rgba(79,70,229,0.2);
    z-index: 99;
  }
  .overlay.show { display: block; }
}

/* ── ADZONE ── */
.ad-zone {
  background: linear-gradient(135deg, rgba(124,58,237,0.04), rgba(244,63,94,0.03));
  border: 1.5px dashed var(--border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  margin-bottom: 20px;
}