/* =========================================================
   KIS Secure Invoice Verification System
   Design System — Premium Dark + White + Royal Blue
   ========================================================= */

:root {
  --primary: #2563EB;
  --primary-light: #3B82F6;
  --primary-dark: #1D4ED8;
  --dark: #0F172A;
  --dark-2: #131C31;
  --dark-3: #1A2540;
  --success: #10B981;
  --danger: #EF4444;
  --warning: #F59E0B;
  --bg: #F8FAFC;
  --border: rgba(148, 163, 184, 0.18);
  --text-dark: #0F172A;
  --text-muted: #64748B;
  --text-light: #F1F5F9;
  --radius: 18px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.14);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

html, body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-dark);
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; }
img { max-width: 100%; display: block; }

/* ---------- Layout helpers ---------- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  transition: all .2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(37, 99, 235, 0.45); }
.btn-outline {
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--text-dark);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: 8px 14px; font-size: 13px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .6; cursor: not-allowed; transform: none; }

/* ---------- Cards / Glass ---------- */
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.glass {
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

/* ---------- Forms ---------- */
.form-group { margin-bottom: 18px; }
.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-muted);
  letter-spacing: .02em;
}
.form-control {
  width: 100%;
  padding: 13px 16px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border);
  background: #fff;
  font-size: 14.5px;
  color: var(--text-dark);
  transition: all .2s ease;
}
.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}
textarea.form-control { resize: vertical; min-height: 100px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 720px) { .form-row { grid-template-columns: 1fr; } }

/* ---------- Badges ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .02em;
}
.badge-paid { background: rgba(16, 185, 129, .12); color: var(--success); }
.badge-pending { background: rgba(245, 158, 11, .14); color: var(--warning); }
.badge-failed { background: rgba(239, 68, 68, .12); color: var(--danger); }

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: #CBD5E1; border-radius: 8px; }
::-webkit-scrollbar-track { background: transparent; }

/* ---------- Logo mark (fallback text mark; CSS-drawn) ---------- */
.dct-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: .01em;
}
.dct-logo .mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, #1E3A8A, #2563EB 40%, #7C3AED);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 15px;
  font-weight: 900;
  box-shadow: 0 6px 16px rgba(37, 99, 235, .35);
}
.dct-logo .text-block { display: flex; flex-direction: column; line-height: 1.1; }
.dct-logo .company { font-size: 15px; font-weight: 800; }
.dct-logo .sub { font-size: 10.5px; color: var(--text-muted); font-weight: 600; letter-spacing: .04em; text-transform: uppercase; }

/* ---------- Utility ---------- */
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; } .mt-32 { margin-top: 32px; }
.mb-8 { margin-bottom: 8px; } .mb-16 { margin-bottom: 16px; } .mb-24 { margin-bottom: 24px; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-8 { gap: 8px; } .gap-12 { gap: 12px; } .gap-16 { gap: 16px; }

/* ---------- Toast ---------- */
.toast-wrap {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.toast {
  background: var(--dark);
  color: #fff;
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 260px;
  animation: slideIn .25s ease;
  border-left: 4px solid var(--primary);
}
.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
@keyframes slideIn { from { opacity:0; transform: translateX(30px);} to {opacity:1; transform: translateX(0);} }