/* ═══════════════════════════════════════════════════════════════════════════
   KOVAT Design System v2.0 — Enterprise Component Library
   Redwolf Productions — kovatai.com
   WS-2: Professional Platform Rebuild
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── DESIGN TOKENS ─────────────────────────────────────────────────────── */

:root {
  --kovat-bg-primary:       #050507;
  --kovat-surface:          #0F0F14;
  --kovat-surface-raised:   #1A1A22;
  --kovat-surface-overlay:  #22222C;
  --kovat-border:           #2A2A38;
  --kovat-text-primary:     #F0F0F8;
  --kovat-text-secondary:   #9090A8;
  --kovat-text-disabled:    #505060;
  --kovat-accent-blue:      var(--theme-primary, #ff224a);
  --kovat-accent-purple:    #8B5CF6;
  --kovat-accent-green:     #22C55E;
  --kovat-accent-yellow:    #EAB308;
  --kovat-accent-red:       #EF4444;
  --kovat-fang-gold:        #F59E0B;

  /* ── Typography ── */
  --kovat-font:             'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --kovat-font-mono:        'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  --kovat-h1:               28px;
  --kovat-h2:               22px;
  --kovat-h3:               18px;
  --kovat-body:             15px;
  --kovat-small:            13px;
  --kovat-label:            12px;

  /* ── Spacing (4px base) ── */
  --kovat-space-xs:  4px;
  --kovat-space-sm:  8px;
  --kovat-space-md:  16px;
  --kovat-space-lg:  24px;
  --kovat-space-xl:  32px;
  --kovat-space-2xl: 48px;

  /* ── Border Radius ── */
  --kovat-radius-sm:    8px;
  --kovat-radius-pill:  24px;
  --kovat-radius-circle: 50%;
  --kovat-radius-modal: 12px;

  /* ── Shadows ── */
  --kovat-shadow-card:    0 1px 3px rgba(0,0,0,0.4);
  --kovat-shadow-modal:   0 8px 32px rgba(0,0,0,0.6);
  --kovat-shadow-tooltip: 0 4px 12px rgba(0,0,0,0.5);

  /* ── Transitions ── */
  --kovat-transition-fast: 150ms ease-out;
  --kovat-transition-base: 200ms ease-out;
  --kovat-transition-slow: 300ms ease-out;
}

/* ── BASE RESET ────────────────────────────────────────────────────────── */

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

body {
  margin: 0;
  padding: 0;
  font-family: var(--kovat-font);
  font-size: var(--kovat-body);
  font-weight: 400;
  line-height: 1.5;
  color: var(--kovat-text-primary);
  background: var(--kovat-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── TYPOGRAPHY ────────────────────────────────────────────────────────── */

h1, .kovat-h1 { font-size: var(--kovat-h1); font-weight: 700; color: var(--kovat-text-primary); }
h2, .kovat-h2 { font-size: var(--kovat-h2); font-weight: 600; color: var(--kovat-text-primary); }
h3, .kovat-h3 { font-size: var(--kovat-h3); font-weight: 600; color: var(--kovat-text-primary); }
.kovat-body  { font-size: var(--kovat-body); font-weight: 400; }
.kovat-small { font-size: var(--kovat-small); font-weight: 400; color: var(--kovat-text-secondary); }
.kovat-label { font-size: var(--kovat-label); font-weight: 500; color: var(--kovat-text-secondary); text-transform: uppercase; letter-spacing: 0.05em; }
.kovat-code  { font-size: 14px; font-family: var(--kovat-font-mono); background: var(--kovat-surface-raised); padding: 2px 6px; border-radius: var(--kovat-radius-sm); }
.muted { color: var(--kovat-text-secondary); }

/* ── BUTTONS ───────────────────────────────────────────────────────────── */

button, .kovat-btn {
  font-family: var(--kovat-font);
  font-size: var(--kovat-body);
  cursor: pointer;
  border: none;
  border-radius: var(--kovat-radius-sm);
  padding: 12px 24px;
  transition: all var(--kovat-transition-base);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}
button:disabled, .kovat-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
button:hover:not(:disabled), .kovat-btn:hover:not(:disabled) {
  filter: brightness(1.1);
}

/* Primary */
button.primary, .kovat-btn-primary {
  background: var(--kovat-accent-blue);
  color: #fff;
}
/* Secondary */
button.secondary, .kovat-btn-secondary {
  background: var(--kovat-surface-raised);
  color: var(--kovat-text-primary);
  border: 1px solid var(--kovat-border);
}
/* Destructive */
button.danger, .kovat-btn-danger {
  background: var(--kovat-accent-red);
  color: #fff;
}
/* Ghost */
button.ghost, .kovat-btn-ghost {
  background: transparent;
  color: var(--kovat-accent-blue);
}
button.ghost:hover, .kovat-btn-ghost:hover {
  background: var(--kovat-surface-raised);
}
/* Icon */
.kovat-btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  background: var(--kovat-surface-raised);
  border-radius: var(--kovat-radius-sm);
  align-items: center;
  justify-content: center;
}

/* ── INPUTS ────────────────────────────────────────────────────────────── */

input[type="text"],
input[type="password"],
input[type="email"],
input[type="search"],
input[type="number"],
input[type="date"],
textarea,
select,
.kovat-input {
  font-family: var(--kovat-font);
  font-size: var(--kovat-body);
  background: var(--kovat-surface-raised);
  border: 1px solid var(--kovat-border);
  border-radius: var(--kovat-radius-sm);
  padding: 12px 16px;
  color: var(--kovat-text-primary);
  transition: border-color var(--kovat-transition-fast);
  outline: none;
  width: 100%;
}
input:focus, textarea:focus, select:focus, .kovat-input:focus {
  border-color: var(--kovat-accent-blue);
}
input.error, textarea.error, .kovat-input-error {
  border-color: var(--kovat-accent-red);
}
input::placeholder, textarea::placeholder {
  color: var(--kovat-text-disabled);
}

/* ── CARDS ─────────────────────────────────────────────────────────────── */

.kovat-card, .panel.glass, .shop-card, .friend-card, .chat-card, .invite-row, .update-card {
  background: var(--kovat-surface);
  border: 1px solid var(--kovat-border);
  border-radius: var(--kovat-radius-sm);
  padding: var(--kovat-space-md);
  box-shadow: var(--kovat-shadow-card);
  transition: box-shadow var(--kovat-transition-base), border-color var(--kovat-transition-base);
}
.kovat-card:hover, .shop-card:hover, .friend-card:hover, .chat-card:hover {
  border-color: var(--kovat-accent-blue);
  box-shadow: 0 2px 8px rgba(74,122,255,0.15);
}

/* ── TOASTS (Notifications) ────────────────────────────────────────────── */

.toast {
  position: fixed;
  bottom: 16px;
  right: 16px;
  max-width: 320px;
  padding: 12px 16px;
  border-radius: var(--kovat-radius-sm);
  font-size: var(--kovat-small);
  font-weight: 500;
  z-index: 10000;
  box-shadow: var(--kovat-shadow-modal);
  animation: kovatToastIn 0.2s ease-out;
  border-left: 4px solid;
  display: flex;
  align-items: center;
  gap: 8px;
}
.toast.good, .toast.success {
  background: var(--kovat-surface-raised);
  border-color: var(--kovat-accent-green);
  color: var(--kovat-accent-green);
}
.toast.error {
  background: var(--kovat-surface-raised);
  border-color: var(--kovat-accent-red);
  color: var(--kovat-accent-red);
}
.toast.warn, .toast.warning {
  background: var(--kovat-surface-raised);
  border-color: var(--kovat-accent-yellow);
  color: var(--kovat-accent-yellow);
}
.toast.info {
  background: var(--kovat-surface-raised);
  border-color: var(--kovat-accent-blue);
  color: var(--kovat-accent-blue);
}
@keyframes kovatToastIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes kovatToastOut {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(-8px); }
}

/* ── MODALS ────────────────────────────────────────────────────────────── */

.kovat-modal, .modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5,5,7,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9000;
  animation: kovatModalIn var(--kovat-transition-base);
}
.kovat-modal-content, .modal-box {
  background: var(--kovat-surface-overlay);
  border: 1px solid var(--kovat-border);
  border-radius: var(--kovat-radius-modal);
  padding: var(--kovat-space-lg);
  max-width: 520px;
  width: 90vw;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--kovat-shadow-modal);
}
@keyframes kovatModalIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ── SKELETON LOADERS ──────────────────────────────────────────────────── */

.skeleton {
  background: linear-gradient(90deg, var(--kovat-surface) 25%, var(--kovat-surface-raised) 50%, var(--kovat-surface) 75%);
  background-size: 200% 100%;
  animation: kovatSkeleton 1.5s ease-in-out infinite;
  border-radius: var(--kovat-radius-sm);
}
.skeleton-card  { height: 72px; margin-bottom: var(--kovat-space-sm); }
.skeleton-title { height: 28px; width: 60%; margin-bottom: var(--kovat-space-md); }
.skeleton-text  { height: 16px; width: 80%; margin-bottom: var(--kovat-space-sm); }
@keyframes kovatSkeleton {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── BADGES & PILLS ────────────────────────────────────────────────────── */

.kovat-badge, .badge, .unread-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--kovat-accent-red);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border-radius: var(--kovat-radius-pill);
}
.kovat-badge-green { background: var(--kovat-accent-green); }
.kovat-badge-purple { background: var(--kovat-accent-purple); }
.kovat-badge-gold   { background: var(--kovat-fang-gold); color: #000; }

/* ── STATUS INDICATORS ─────────────────────────────────────────────────── */

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: var(--kovat-radius-circle);
  position: absolute;
  bottom: 0;
  right: 0;
  border: 2px solid var(--kovat-bg-primary);
}
.status-dot.online  { background: var(--kovat-accent-green); }
.status-dot.offline { background: var(--kovat-text-disabled); }
.status-text.online  { color: var(--kovat-accent-green); }
.status-text.offline { color: var(--kovat-text-disabled); }

/* ── EMPTY STATES ──────────────────────────────────────────────────────── */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--kovat-space-2xl) var(--kovat-space-md);
  text-align: center;
  color: var(--kovat-text-secondary);
}
.empty-state h2 { color: var(--kovat-text-secondary); margin-bottom: var(--kovat-space-sm); }
.empty-state p  { color: var(--kovat-text-disabled); }

/* ── FORM LAYOUT ───────────────────────────────────────────────────────── */

.form-stack {
  display: flex;
  flex-direction: column;
  gap: var(--kovat-space-md);
}
.form-stack label {
  display: flex;
  flex-direction: column;
  gap: var(--kovat-space-xs);
  font-size: var(--kovat-small);
  font-weight: 500;
  color: var(--kovat-text-secondary);
}

/* ── GRID LAYOUTS ──────────────────────────────────────────────────────── */

.grid { display: grid; gap: var(--kovat-space-md); }
.grid.two   { grid-template-columns: repeat(2, 1fr); }
.grid.three { grid-template-columns: repeat(3, 1fr); }
.grid.four  { grid-template-columns: repeat(4, 1fr); }
.cards {
  display: flex;
  flex-direction: column;
  gap: var(--kovat-space-sm);
}
.shop-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--kovat-space-md);
}

/* ── UTILITY CLASSES ───────────────────────────────────────────────────── */

.kovat-flex       { display: flex; }
.kovat-flex-col   { flex-direction: column; }
.kovat-gap-sm     { gap: var(--kovat-space-sm); }
.kovat-gap-md     { gap: var(--kovat-space-md); }
.kovat-text-center { text-align: center; }
.kovat-sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ── RESPONSIVE ────────────────────────────────────────────────────────── */

@media (max-width: 768px) {
  .grid.two, .grid.three, .grid.four { grid-template-columns: 1fr; }
  .shop-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
  .kovat-modal-content, .modal-box { width: 95vw; padding: var(--kovat-space-md); }
}
@media (max-width: 375px) {
  :root {
    --kovat-h1: 22px;
    --kovat-h2: 18px;
    --kovat-h3: 16px;
  }
  .shop-grid { grid-template-columns: 1fr 1fr; }
}