@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

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

:root {
  --black:   #0f172a;
  --bg:      #f8fafc;
  --white:   #FFFFFF;
  --text:    #0f172a;
  --text2:   #64748b;
  --text3:   #94a3b8;
  --border:  #e2e8f0;
  --accent:  #6c47ff;
  --accent-h:#5b3de8;
  --accent-light: #ede9ff;
  --gradient: linear-gradient(135deg, #6c47ff 0%, #7c3aed 100%);
  --success: #16a34a;
  --error:   #dc2626;
  --warning: #d97706;

  --r-sm:   6px;
  --r:      8px;
  --r-md:  12px;
  --r-lg:  16px;
  --r-btn:  8px;
  --r-input:8px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow:    0 4px 16px rgba(0,0,0,.07), 0 1px 4px rgba(0,0,0,.04);
  --shadow-md: 0 8px 32px rgba(0,0,0,.10), 0 2px 8px rgba(0,0,0,.06);
  --shadow-lg: 0 20px 60px rgba(0,0,0,.12), 0 4px 16px rgba(0,0,0,.08);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.25;
  color: var(--black);
  letter-spacing: -0.02em;
}

a { color: var(--accent); text-decoration: none; transition: color .15s; }
a:hover { text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; font-family: inherit; font-size: 14px; }
input, select, textarea { font-family: inherit; font-size: 14px; }

/* Layout */
.container    { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-sm { max-width: 600px;  margin: 0 auto; padding: 0 24px; }
.container-md { max-width: 860px;  margin: 0 auto; padding: 0 24px; }

/* Buttons */
.btn svg, button svg { pointer-events: none; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: var(--r-btn);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .18s cubic-bezier(.4,0,.2,1);
  white-space: nowrap;
  text-decoration: none;
  font-family: inherit;
  line-height: 1;
  letter-spacing: -0.01em;
}
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary   { background: var(--gradient); color: #fff; border-color: transparent; box-shadow: 0 2px 8px rgba(108,71,255,.35); }
.btn-primary:hover:not(:disabled) { background: linear-gradient(135deg, #5b3de8 0%, #6d30d4 100%); box-shadow: 0 6px 18px rgba(108,71,255,.45); transform: translateY(-1px); }
.btn-secondary { background: #fff; color: var(--text); border-color: var(--border); }
.btn-secondary:hover:not(:disabled) { background: var(--bg); border-color: #cbd5e1; box-shadow: var(--shadow-sm); }
.btn-ghost     { background: transparent; color: var(--text2); border-color: transparent; }
.btn-ghost:hover:not(:disabled) { background: var(--bg); color: var(--text); }
.btn-danger    { background: #fff; color: var(--error); border-color: #fecaca; }
.btn-danger:hover:not(:disabled) { background: #fef2f2; }
.btn-sm  { padding: 7px 14px; font-size: 13px; }
.btn-lg  { padding: 13px 28px; font-size: 15px; }
.btn-xl  { padding: 15px 32px; font-size: 16px; }
.w-full  { width: 100%; }
.btn-icon { padding: 8px; }

/* Form fields */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.field label { font-size: 13px; font-weight: 600; color: var(--text); }
.field input, .field select, .field textarea {
  background: #fff;
  border: 1.5px solid var(--border);
  border-radius: var(--r-input);
  padding: 10px 12px;
  font-size: 14px;
  color: var(--text);
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99,102,241,.1);
}
.field textarea { resize: vertical; min-height: 80px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* Card */
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 24px;
}

/* Badges */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: 999px;
  font-size: 12px; font-weight: 600; white-space: nowrap;
}
.badge-success { background: #dcfce7; color: #166534; }
.badge-error   { background: #fee2e2; color: #991b1b; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-gray    { background: #f1f5f9; color: #475569; }
.badge-blue    { background: #dbeafe; color: #1e40af; }
.badge-purple  { background: #ede9fe; color: #5b21b6; }
.badge-pink    { background: #fce7f3; color: #9d174d; }

/* Alert */
.alert {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px; border-radius: var(--r);
  font-size: 14px; font-weight: 500;
}
.alert-error   { background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; }
.alert-success { background: #f0fdf4; border: 1px solid #bbf7d0; color: #166534; }
.alert-info    { background: #eff6ff; border: 1px solid #bfdbfe; color: #1e40af; }

/* Spinner */
.spinner {
  display: inline-block;
  width: 20px; height: 20px;
  border: 2px solid rgba(0,0,0,.08);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin    { to { transform: rotate(360deg); } }
@keyframes ripple  { to { width: 300px; height: 300px; opacity: 0; } }
@keyframes fadeUp  { from { opacity:0; transform:translateY(18px); } to { opacity:1; transform:translateY(0); } }
@keyframes popIn   { from { opacity:0; transform:scale(.88); } to { opacity:1; transform:scale(1); } }
@keyframes slideIn { from { opacity:0; transform:translateX(-14px); } to { opacity:1; transform:translateX(0); } }

.anim-fade-up  { animation: fadeUp  .45s cubic-bezier(.22,1,.36,1) both; }
.anim-pop-in   { animation: popIn   .4s  cubic-bezier(.22,1,.36,1) both; }
.anim-slide-in { animation: slideIn .4s  cubic-bezier(.22,1,.36,1) both; }

/* Card lift on hover */
.card { transition: box-shadow .2s, transform .2s; }
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }

/* Table */
.table-wrap { background: #fff; border: 1px solid var(--border); border-radius: var(--r-md); overflow: hidden; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { font-size: 12px; font-weight: 600; color: var(--text3); text-transform: uppercase; letter-spacing: .5px; padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border); background: var(--bg); }
td { padding: 13px 16px; border-bottom: 1px solid var(--border); color: var(--text); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #f8fafc; }

/* Stat card */
.stat-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 20px;
  transition: box-shadow .2s, transform .15s;
}
.stat-card:hover { box-shadow: var(--shadow); transform: translateY(-1px); }
.stat-label { font-size: 12px; font-weight: 600; color: var(--text3); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 8px; }
.stat-value { font-size: 28px; font-weight: 800; color: var(--black); line-height: 1; letter-spacing: -0.03em; }

/* Grid helpers */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

/* Empty state */
.empty-state {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; min-height: 240px; gap: 12px;
  text-align: center; color: var(--text3);
}
.empty-state svg { color: var(--border); }
.empty-state h3 { font-size: 16px; font-weight: 600; color: var(--text2); }
.empty-state p { font-size: 14px; max-width: 280px; }

/* Divider */
hr { border: none; border-top: 1px solid var(--border); }

/* Fade-in animation */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeInUp .4s ease both; }

@media (max-width: 640px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .container { padding: 0 16px; }
  .field-row { grid-template-columns: 1fr; }
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
  :root {
    --black:   #f1f5f9;
    --bg:      #0f172a;
    --white:   #1e293b;
    --text:    #f1f5f9;
    --text2:   #94a3b8;
    --text3:   #64748b;
    --border:  #334155;
    --accent-light: #1e1b4b;
  }
  body { background: var(--bg); }
  .card, .table-wrap { background: var(--white); }
  th { background: #1e293b; }
  tr:hover td { background: #1e293b; }
  .field input, .field select, .field textarea { background: #1e293b; color: var(--text); }
  .btn-secondary { background: #1e293b; color: var(--text); border-color: var(--border); }
  .btn-secondary:hover:not(:disabled) { background: #334155; }
  .alert-error   { background: #2d1515; border-color: #7f1d1d; }
  .alert-success { background: #0d2d1a; border-color: #14532d; }
  .alert-info    { background: #0c1a3a; border-color: #1e3a6e; }
}