/* ═══════════════════════════════════════════════════════════
   KharchaGraph – Premium Design System v2
   Color Palette: Deep Navy + Violet + Emerald
   ═══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,700&display=swap');

/* ── Design Tokens ───────────────────────────────────────── */
:root {
  /* === PRIMARY PALETTE === */
  --p-50:  #eef2ff;
  --p-100: #e0e7ff;
  --p-200: #c7d2fe;
  --p-400: #818cf8;
  --p-500: #6366f1;   /* Main brand */
  --p-600: #4f46e5;
  --p-700: #4338ca;
  --p-900: #312e81;

  /* === VIOLET ACCENT === */
  --v-400: #a78bfa;
  --v-500: #8b5cf6;
  --v-600: #7c3aed;

  /* === SUCCESS / GREEN === */
  --g-400: #34d399;
  --g-500: #10b981;
  --g-600: #059669;

  /* === DANGER / RED === */
  --r-400: #fb7185;
  --r-500: #f43f5e;

  /* === WARNING / AMBER === */
  --a-400: #fbbf24;
  --a-500: #f59e0b;

  /* === NEUTRALS === */
  --n-0:   #ffffff;
  --n-50:  #f8fafc;
  --n-100: #f1f5f9;
  --n-200: #e2e8f0;
  --n-300: #cbd5e1;
  --n-400: #94a3b8;
  --n-500: #64748b;
  --n-700: #334155;
  --n-800: #1e293b;
  --n-900: #0f172a;

  /* === SEMANTIC === */
  --bg:          #f0f4ff;        /* Soft indigo-tinted background */
  --surface:     #ffffff;
  --surface-2:   #f8fafc;
  --border:      #e2e8f0;
  --border-soft: #f1f5f9;

  --text-h:  #0f172a;     /* Headings */
  --text-b:  #334155;     /* Body */
  --text-s:  #64748b;     /* Secondary */
  --text-m:  #94a3b8;     /* Muted */

  /* === GRADIENTS === */
  --grad-brand:   linear-gradient(135deg, #4f46e5, #8b5cf6);
  --grad-emerald: linear-gradient(135deg, #10b981, #34d399);
  --grad-danger:  linear-gradient(135deg, #f43f5e, #fb7185);
  --grad-gold:    linear-gradient(135deg, #f59e0b, #fbbf24);
  --grad-hero:    linear-gradient(135deg, #1e1b4b 0%, #312e81 40%, #4f46e5 100%);

  /* === SHADOWS === */
  --sh-xs: 0 1px 2px rgba(15,23,42,0.05);
  --sh-sm: 0 1px 4px rgba(15,23,42,0.06), 0 2px 8px rgba(15,23,42,0.04);
  --sh-md: 0 4px 12px rgba(15,23,42,0.08), 0 2px 6px rgba(15,23,42,0.04);
  --sh-lg: 0 8px 32px rgba(15,23,42,0.10), 0 4px 12px rgba(15,23,42,0.06);
  --sh-xl: 0 16px 48px rgba(15,23,42,0.12), 0 8px 20px rgba(15,23,42,0.06);
  --sh-brand: 0 8px 28px rgba(99,102,241,0.30);
  --sh-green: 0 8px 28px rgba(16,185,129,0.25);

  /* === RADII === */
  --r-sm:  8px;
  --r-md:  12px;
  --r-lg:  16px;
  --r-xl:  20px;
  --r-2xl: 28px;
  --r-3xl: 36px;

  /* === TRANSITIONS === */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --t-fast: 0.15s;
  --t-base: 0.22s;
  --t-slow: 0.40s;
}

/* ── Base Reset ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; text-size-adjust: 100%; }

body {
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text-b);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-tap-highlight-color: transparent;
}

img { display: block; max-width: 100%; }
button, input, select, textarea { font-family: inherit; }
a { color: var(--p-500); transition: color var(--t-base) var(--ease); }
a:hover { color: var(--p-600); }

/* ── Scrollbar ───────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--n-300); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--n-400); }

/* ── Glassmorphism ───────────────────────────────────────── */
.glass {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(20px) saturate(200%);
  -webkit-backdrop-filter: blur(20px) saturate(200%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: 0 1px 0 0 rgba(15, 23, 42, 0.04), 0 2px 8px rgba(15,23,42,0.03);
}

/* ── Typography ──────────────────────────────────────────── */
.t-display { font-size: clamp(1.9rem, 5vw, 3.2rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; color: var(--text-h); }
.t-hero    { font-size: clamp(1.5rem, 4vw, 2.4rem); font-weight: 800; letter-spacing: -0.025em; line-height: 1.15; }
.t-title   { font-size: 1.15rem; font-weight: 700; letter-spacing: -0.015em; color: var(--text-h); }
.t-label   { font-size: 0.65rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-m); }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 0.45rem;
  padding: 0.6rem 1.35rem;
  border-radius: var(--r-md);
  font-weight: 700; font-size: 0.875rem; line-height: 1;
  border: none; cursor: pointer; text-decoration: none;
  transition: all var(--t-base) var(--ease);
  white-space: nowrap; user-select: none;
}
.btn:active { transform: scale(0.97); }
.btn i { font-size: 0.85em; }

.btn-primary {
  background: var(--grad-brand);
  color: #fff;
  box-shadow: var(--sh-brand);
}
.btn-primary:hover { filter: brightness(1.08); box-shadow: 0 12px 36px rgba(99,102,241,0.40); color: #fff; transform: translateY(-1px); }

.btn-success {
  background: var(--grad-emerald);
  color: #fff;
  box-shadow: var(--sh-green);
}
.btn-success:hover { filter: brightness(1.06); color: #fff; transform: translateY(-1px); }

.btn-ghost {
  background: var(--surface);
  color: var(--text-b);
  border: 1.5px solid var(--border);
  box-shadow: var(--sh-xs);
}
.btn-ghost:hover { border-color: var(--p-400); color: var(--p-600); background: var(--p-50); }

.btn-danger {
  background: var(--grad-danger);
  color: #fff;
}
.btn-danger:hover { filter: brightness(1.07); color: #fff; transform: translateY(-1px); }

.btn-lg { padding: 0.85rem 2rem; font-size: 1rem; border-radius: var(--r-lg); }
.btn-sm { padding: 0.4rem 0.9rem; font-size: 0.8rem; border-radius: var(--r-sm); }

/* ── Cards ───────────────────────────────────────────────── */
.kc-card {
  background: var(--surface);
  border-radius: var(--r-xl);
  border: 1px solid var(--border-soft);
  box-shadow: var(--sh-sm);
  overflow: hidden;
  transition: box-shadow var(--t-base) var(--ease), transform var(--t-base) var(--ease);
}
.kc-card:hover { box-shadow: var(--sh-md); }

/* ── Stat Cards ──────────────────────────────────────────── */
.kc-stat {
  background: var(--surface);
  border-radius: var(--r-lg);
  border: 1px solid var(--border-soft);
  padding: 1.4rem 1.5rem;
  box-shadow: var(--sh-sm);
  transition: all var(--t-base) var(--ease);
  position: relative; overflow: hidden;
}
.kc-stat::after {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--grad-brand);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--t-base) var(--ease);
  border-radius: 0 0 3px 3px;
}
.kc-stat:hover { box-shadow: var(--sh-md); transform: translateY(-3px); }
.kc-stat:hover::after { transform: scaleX(1); }

.stat-icon {
  width: 44px; height: 44px;
  border-radius: var(--r-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; margin-bottom: 1rem;
}
.stat-value { font-size: 1.8rem; font-weight: 800; letter-spacing: -0.04em; line-height: 1; color: var(--text-h); margin-bottom: 4px; }
.stat-label { font-size: 0.68rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-m); }

/* ── Hero Banner ─────────────────────────────────────────── */
.kc-hero {
  background: var(--grad-hero);
  border-radius: var(--r-3xl);
  padding: clamp(2rem, 4vw, 3.5rem);
  color: white;
  position: relative; overflow: hidden;
  box-shadow: 0 16px 56px rgba(49,46,129,0.35), 0 4px 16px rgba(15,23,42,0.1);
}
.kc-hero::before {
  content: '';
  position: absolute; width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139,92,246,0.20) 0%, transparent 70%);
  top: -120px; right: -80px; pointer-events: none;
}
.kc-hero::after {
  content: '';
  position: absolute; width: 240px; height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99,102,241,0.15) 0%, transparent 70%);
  bottom: -60px; left: -40px; pointer-events: none;
}

/* ── Progress Bar ────────────────────────────────────────── */
.kc-progress { background: var(--n-100); border-radius: 99px; height: 8px; overflow: hidden; }
.kc-progress-bar {
  height: 100%; border-radius: 99px;
  transition: width 0.9s cubic-bezier(0.4, 0, 0.2, 1);
}
.kc-progress-bar.safe   { background: linear-gradient(90deg, var(--g-500), var(--g-400)); }
.kc-progress-bar.warn   { background: linear-gradient(90deg, var(--a-500), var(--a-400)); }
.kc-progress-bar.danger { background: linear-gradient(90deg, var(--r-500), var(--r-400)); }

/* ── Badges ──────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 0.3rem;
  padding: 0.22rem 0.7rem;
  border-radius: 99px;
  font-size: 0.65rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.06em;
}
.badge-primary { background: var(--p-100);  color: var(--p-600); }
.badge-success { background: #d1fae5; color: var(--g-600); }
.badge-danger  { background: #ffe4e6; color: var(--r-500); }
.badge-warning { background: #fef3c7; color: #b45309; }
.badge-muted   { background: var(--n-100); color: var(--n-500); }

/* ── Table ───────────────────────────────────────────────── */
.kc-table { width: 100%; border-collapse: separate; border-spacing: 0; }
.kc-table thead th {
  padding: 0.8rem 1.5rem;
  font-size: 0.65rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--text-m); background: var(--n-50);
  border-bottom: 1px solid var(--border-soft);
}
.kc-table tbody tr { border-bottom: 1px solid var(--border-soft); transition: background var(--t-fast) var(--ease); }
.kc-table tbody tr:last-child { border-bottom: none; }
.kc-table tbody tr:hover { background: #f5f6ff; }
.kc-table tbody td { padding: 1rem 1.5rem; }

/* ── Form Controls ───────────────────────────────────────── */
.kc-label {
  display: block; font-size: 0.78rem; font-weight: 700;
  color: var(--text-s); margin-bottom: 6px;
}
.kc-input, .kc-select, .kc-textarea {
  width: 100%;
  padding: 0.78rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--r-md);
  font-size: 0.9rem; font-weight: 500;
  color: var(--text-h); background: var(--surface);
  outline: none;
  transition: all var(--t-base) var(--ease);
  appearance: none;
}
.kc-input:focus, .kc-select:focus, .kc-textarea:focus {
  border-color: var(--p-500);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.14);
  background: #fff;
}
.kc-input::placeholder { color: var(--n-300); }

/* ── Alerts ──────────────────────────────────────────────── */
.kc-alert {
  display: flex; align-items: flex-start; gap: 0.75rem;
  padding: 0.9rem 1.1rem;
  border-radius: var(--r-md);
  font-size: 0.875rem; font-weight: 600;
  animation: slideDown var(--t-base) var(--ease);
}
.kc-alert.success { background: #ecfdf5; color: #065f46; border-left: 3px solid var(--g-500); }
.kc-alert.error   { background: #fff1f2; color: #9f1239; border-left: 3px solid var(--r-500); }
.kc-alert.warning { background: #fffbeb; color: #92400e; border-left: 3px solid var(--a-500); }
.kc-alert.info    { background: var(--p-50);   color: var(--p-900); border-left: 3px solid var(--p-500); }

/* ── Nav Links ───────────────────────────────────────────── */
.nav-link {
  display: inline-flex; align-items: center; gap: 0.45rem;
  padding: 0.48rem 0.9rem;
  border-radius: var(--r-sm);
  font-size: 0.875rem; font-weight: 600;
  color: var(--text-s); text-decoration: none;
  transition: all var(--t-base) var(--ease);
}
.nav-link:hover  { color: var(--p-600); background: var(--p-50); }
.nav-link.active { color: var(--p-600); background: var(--p-100); font-weight: 700; }

/* ── Mobile Bottom Nav ───────────────────────────────────── */
.bottom-nav-link {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  text-decoration: none; color: var(--n-400);
  font-size: 0.55rem; font-weight: 800;
  text-transform: uppercase; letter-spacing: 0.05em;
  transition: color var(--t-base) var(--ease);
  min-width: 44px; padding: 0.25rem 0;
}
.bottom-nav-link i { font-size: 1.2rem; transition: transform var(--t-base) var(--ease); }
.bottom-nav-link:hover, .bottom-nav-link.active { color: var(--p-500); }
.bottom-nav-link.active i { transform: scale(1.15); }

.bottom-nav-fab {
  width: 54px; height: 54px;
  border-radius: var(--r-xl);
  background: var(--grad-brand);
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 8px 24px rgba(99,102,241,0.40);
  position: relative; top: -12px;
  text-decoration: none;
  transition: all var(--t-base) var(--ease);
}
.bottom-nav-fab:hover { transform: scale(1.08) translateY(-3px); box-shadow: 0 14px 36px rgba(99,102,241,0.50); color: white; }

/* ── Pagination ──────────────────────────────────────────── */
.kc-pagination { display: flex; align-items: center; justify-content: center; gap: 0.4rem; margin-top: 2rem; }
.kc-page-link {
  min-width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--r-sm);
  font-size: 0.85rem; font-weight: 600;
  color: var(--text-s); background: var(--surface);
  border: 1.5px solid var(--border); text-decoration: none;
  transition: all var(--t-base) var(--ease);
}
.kc-page-link:hover { border-color: var(--p-400); color: var(--p-600); background: var(--p-50); }
.kc-page-link.active { background: var(--p-500); color: white; border-color: var(--p-500); }

/* ── Animations ──────────────────────────────────────────── */
@keyframes fadeUp    { from { opacity:0; transform:translateY(18px); } to { opacity:1; transform:translateY(0); } }
@keyframes scaleIn   { from { opacity:0; transform:scale(0.93); } to { opacity:1; transform:scale(1); } }
@keyframes slideDown { from { opacity:0; transform:translateY(-8px); } to { opacity:1; transform:translateY(0); } }
@keyframes shimmer   { 0% { bg-pos:200% 0; } 100% { bg-pos:-200% 0; } }
@keyframes pulse-dot {
  0%, 100% { opacity:1; transform:scale(1); }
  50%      { opacity:0.5; transform:scale(0.85); }
}

.animate-up   { animation: fadeUp  0.45s var(--ease) both; }
.animate-in   { animation: scaleIn 0.35s var(--ease) both; }
.d1 { animation-delay: 0.05s; }
.d2 { animation-delay: 0.10s; }
.d3 { animation-delay: 0.15s; }
.d4 { animation-delay: 0.20s; }

/* ── Utilities ───────────────────────────────────────────── */
.pb-safe { padding-bottom: calc(0.75rem + env(safe-area-inset-bottom)); }
@media (max-width: 1023px) { body { padding-bottom: 80px; } }