/* ═══════════════════════════════════════════════════════════
   AUTO REGISTRATION DASHBOARD — MODERN DESIGN (v2)
   Applied when <html> has class "design-v2"
   UX-optimized: visual hierarchy, whitespace, functional color,
   bento-grid KPIs, clean typography, micro-interactions
   ═══════════════════════════════════════════════════════════ */

/* ── Variables override ────────────────────────────────────── */
html.design-v2 {
  --bg-page:       #ffffff;
  --bg-card:       #ffffff;
  --bg-surface:    #f8fafc;
  --bg-hover:      #f1f5f9;
  --border:        #e8ecf1;
  --border-light:  #eef2f7;
  --shadow-sm:     0 1px 2px rgba(0,0,0,0.03);
  --shadow:        0 2px 8px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.03);
  --shadow-lg:     0 8px 24px rgba(0,0,0,0.06), 0 2px 6px rgba(0,0,0,0.03);
  --radius:        16px;
  --radius-sm:     10px;
  --transition:    0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Body ──────────────────────────────────────────────────── */
html.design-v2 body {
  background: #f0f4f8;
}

/* ── Header — clean, elegant ──────────────────────────────── */
html.design-v2 .header {
  background: #f7f9fc;
  padding: 1.1rem 2.5rem 0.9rem;
  border-bottom: 1px solid #eef1f5;
  box-shadow: none;
  position: relative;
}
html.design-v2 .header::before {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, #e8722a 0%, #ed8936 50%, #f6ad55 100%);
  display: block;
}
html.design-v2 .header::after {
  display: none;
}
html.design-v2 .header__brand {
  gap: 1rem;
}
html.design-v2 .header__logo {
  height: 42px;
  content: url('/static/logo-color.png');
}
html.design-v2 .header__title {
  color: #1a202c;
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: -0.025em;
  line-height: 1.2;
}
html.design-v2 .header__sub {
  color: #718096;
  font-size: 0.72rem;
  font-weight: 400;
  margin-top: 0.15rem;
}
html.design-v2 .header__period {
  color: #e8722a;
  font-size: 0.7rem;
  font-weight: 600;
  margin-top: 0.2rem;
  letter-spacing: 0.01em;
}
/* Language switcher — pill style for V2 */
html.design-v2 .lang-switch {
  border: 1.5px solid #e2e8f0;
  border-radius: 20px;
}
html.design-v2 .lang-switch__btn {
  background: transparent;
  color: #94a3b8;
  font-size: 0.65rem;
  padding: 0.3rem 0.55rem;
}
html.design-v2 .lang-switch__btn:not(:last-child) {
  border-right: 1px solid #e2e8f0;
}
html.design-v2 .lang-switch__btn:hover {
  background: #f1f5f9;
  color: #475569;
}
html.design-v2 .lang-switch__btn.active {
  background: #edf2f7;
  color: #1a202c;
}
/* Design button — pill, neutral */
html.design-v2 .btn-design {
  display: none;
}
html.design-v2 .footer__logo {
  cursor: pointer;
  transition: opacity var(--transition);
}
html.design-v2 .footer__logo:hover {
  opacity: 0.7;
}

/* ── Filters — pill style, softer ─────────────────────────── */
html.design-v2 .filters-bar {
  background: #f6f8fb;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(0,0,0,0.02);
  padding: 0.65rem 2.5rem;
}
html.design-v2 .filter-group select {
  border-radius: 20px;
  padding: 0.45rem 2rem 0.45rem 0.85rem;
  border: 1.5px solid #e2e8f0;
  background-color: #f8fafc;
  font-size: 0.78rem;
  transition: all var(--transition);
}
html.design-v2 .filter-group select:hover {
  border-color: #cbd5e1;
  box-shadow: 0 1px 4px rgba(0,0,0,0.05);
}
html.design-v2 .filter-group select:focus {
  border-color: #0ea5e9;
  box-shadow: 0 0 0 3px rgba(14,165,233,0.1);
}
html.design-v2 .filter-month {
  border-radius: 20px;
  padding: 0.45rem 0.85rem;
  border: 1.5px solid #e2e8f0;
  background-color: #f8fafc;
  font-size: 0.78rem;
}
html.design-v2 .btn-reset {
  border-radius: 20px;
  padding: 0.45rem 1rem;
  font-size: 0.78rem;
  background: #f8fafc;
  border-color: #e2e8f0;
}

/* ── Main content — more whitespace ──────────────────────── */
html.design-v2 .main {
  gap: 1.75rem;
  padding: 1.75rem 2.5rem 4rem;
}
html.design-v2 .grid-2 {
  gap: 1.75rem;
}

/* ═══ SUMMARY CARDS — BENTO GRID KPIs ═══════════════════════ */
html.design-v2 .summary-row {
  gap: 1.25rem;
}
html.design-v2 .summary-card {
  border: 1px solid var(--border-light);
  border-radius: 18px;
  box-shadow: var(--shadow-sm);
  padding: 1.35rem 1.5rem 1.25rem;
  transition: all var(--transition);
  background: #ffffff;
  min-width: 0;
}
html.design-v2 .summary-card::before {
  width: 0;
  display: none;
}
/* Distinct accent strips — top border, eauto brand colors */
html.design-v2 .summary-card--blue {
  background: linear-gradient(180deg, #eef3fa 0%, #ffffff 40%);
  border-top: 3px solid #1a56a0;
}
html.design-v2 .summary-card--green {
  background: linear-gradient(180deg, #fdf3ed 0%, #ffffff 40%);
  border-top: 3px solid #e8722a;
}
html.design-v2 .summary-card--orange {
  background: linear-gradient(180deg, #eef8f7 0%, #ffffff 40%);
  border-top: 3px solid #319795;
}
html.design-v2 .summary-card--purple {
  background: linear-gradient(180deg, #f3eff9 0%, #ffffff 40%);
  border-top: 3px solid #805ad5;
}
html.design-v2 .summary-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
/* Bigger KPI values — visual hierarchy */
html.design-v2 .summary-card__icon {
  width: 40px; height: 40px;
  border-radius: 12px;
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
}
html.design-v2 .summary-card--blue .summary-card__icon {
  background: rgba(26,86,160,0.1);
}
html.design-v2 .summary-card--green .summary-card__icon {
  background: rgba(232,114,42,0.1);
}
html.design-v2 .summary-card--orange .summary-card__icon {
  background: rgba(49,151,149,0.1);
}
html.design-v2 .summary-card--purple .summary-card__icon {
  background: rgba(128,90,213,0.1);
}
html.design-v2 .summary-card__label {
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: #64748b;
  margin-bottom: 0.15rem;
}
html.design-v2 .summary-card__value {
  font-size: 1.85rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.15;
}
html.design-v2 .summary-card__value--blue { color: #1a56a0; }
html.design-v2 .summary-card__value--green { color: #e8722a; }
html.design-v2 .summary-card__value--orange { color: #319795; }
html.design-v2 .summary-card__value--purple { color: #805ad5; }
html.design-v2 .summary-card__value--text {
  font-size: 1.35rem;
  letter-spacing: -0.01em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}
html.design-v2 .summary-card__change {
  color: #94a3b8;
  font-size: 0.72rem;
  margin-top: 0.3rem;
}

/* ═══ SECTION CARDS — CLEAN, MINIMAL ═══════════════════════ */
html.design-v2 .section-card {
  border: 1px solid var(--border-light);
  border-radius: 18px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-slow);
}
html.design-v2 .section-card::before {
  background: url('/static/brand-bg.png') repeat top left;
  opacity: 0.7;
}
html.design-v2 .section-card:hover {
  box-shadow: var(--shadow);
}
html.design-v2 .section-card__header {
  background: transparent;
  border-bottom: 1px solid #f1f5f9;
  padding: 1.15rem 1.75rem 0.85rem;
}
html.design-v2 .section-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #0f172a;
  letter-spacing: -0.01em;
}
html.design-v2 .section-card__subtitle {
  color: #94a3b8;
  font-size: 0.72rem;
  margin-top: 0.1rem;
}

/* ── View toggle — modern pill style ──────────────────────── */
html.design-v2 .view-toggle {
  border: 1px solid #e2e8f0;
  border-radius: 20px;
  padding: 2px;
  background: #f8fafc;
}
html.design-v2 .view-toggle__btn {
  border-radius: 18px;
  padding: 0.3rem 0.75rem;
  font-size: 0.7rem;
  transition: all var(--transition);
}
html.design-v2 .view-toggle__btn.active {
  background: #0f172a;
  color: #ffffff;
  box-shadow: 0 1px 4px rgba(15,23,42,0.2);
}
html.design-v2 .view-toggle__btn:hover:not(.active) {
  background: #e2e8f0;
}

/* ── Data table — cleaner rows ─────────────────────────────── */
html.design-v2 .data-table-wrapper {
  border: 1px solid #f1f5f9;
  border-radius: 14px;
}
html.design-v2 .data-table th {
  background: #fafbfc;
  border-bottom: 1px solid #eef2f6;
  font-size: 0.6rem;
  padding: 0.6rem 0.85rem;
  color: #94a3b8;
}
html.design-v2 .data-table td {
  border-bottom: 1px solid #f5f7fa;
  padding: 0.6rem 0.85rem;
  font-size: 0.8rem;
}
html.design-v2 .data-table tr:hover td {
  background: #f8fafc;
}
/* V2 progress bars use accent color */
html.design-v2 .pct-bar__fill {
  background: #0ea5e9;
}

/* ── Chart container — more breathing room ────────────────── */
html.design-v2 .section-card__body {
  padding: 1.25rem 1.75rem 1.5rem;
}

/* ── Map — rounded inner ───────────────────────────────────── */
html.design-v2 .map-container {
  border-radius: 14px;
  border: 1px solid #eef2f6;
}

/* ── Treemap ──────────────────────────────────────────────── */
html.design-v2 .treemap {
  border-radius: 14px;
  border: 1px solid #eef2f6;
}

/* ── Footer — softer dark ──────────────────────────────────── */
html.design-v2 .footer {
  background: #0f172a;
  border-top: none;
}
html.design-v2 .footer__logo {
  opacity: 0.9;
}

/* ── Loading overlay — smoother ────────────────────────────── */
html.design-v2 .loading-overlay {
  border-radius: 18px;
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(4px);
}
html.design-v2 .loading-spinner {
  border-top-color: #0ea5e9;
}

/* ── Animations — more subtle, staggered ─────────────────── */
html.design-v2 .section-card,
html.design-v2 .summary-card {
  animation-duration: 0.4s;
  animation-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Responsive V2 tweaks ─────────────────────────────────── */
@media (max-width: 768px) {
  /* Header — compact, stacked */
  html.design-v2 .header {
    padding: 0.75rem 1rem 0.6rem;
  }
  html.design-v2 .header__top-row {
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  html.design-v2 .header__brand {
    gap: 0.6rem;
    min-width: 0;
    flex: 1;
  }
  html.design-v2 .header__logo {
    height: 32px;
  }
  html.design-v2 .header__title {
    font-size: 0.95rem;
    line-height: 1.15;
  }
  html.design-v2 .header__sub {
    display: none;
  }
  html.design-v2 .header__period {
    font-size: 0.62rem;
    margin-top: 0.15rem;
  }
  html.design-v2 .header__controls {
    flex-shrink: 0;
  }
  html.design-v2 .lang-switch__btn {
    font-size: 0.6rem;
    padding: 0.25rem 0.45rem;
  }

  /* Filters — 2-column grid, compact */
  html.design-v2 .filters-bar {
    padding: 0.5rem 0.75rem;
  }
  html.design-v2 .filters-bar__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.4rem 0.5rem;
    align-items: end;
  }
  html.design-v2 .filter-group {
    gap: 0.15rem;
  }
  /* Reorder on mobile: oper|kind, periodFrom|fuel, periodTo|reset */
  html.design-v2 .filter-group:nth-child(1) { order: 1; } /* Тип операції */
  html.design-v2 .filter-group:nth-child(2) { order: 2; } /* Вид ТЗ */
  html.design-v2 .filter-group:nth-child(3) { order: 4; } /* Паливо → row 2 right */
  html.design-v2 .filter-group:nth-child(4) { order: 3; } /* Період від → row 2 left */
  html.design-v2 .filter-group:nth-child(5) { order: 5; } /* Період до */
  html.design-v2 .btn-reset                 { order: 6; } /* Скинути */
  html.design-v2 .filter-group label {
    font-size: 0.52rem;
    padding-left: 0.4rem;
  }
  html.design-v2 .filter-group select,
  html.design-v2 .filter-month {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    min-width: 0;
    width: 100%;
    font-size: 0.72rem;
    font-family: 'Inter', sans-serif;
    padding: 0 0.6rem;
    height: 36px;
    line-height: 36px;
    border-radius: 20px;
    border: 1.5px solid #e2e8f0;
    background-color: #f8fafc;
    box-sizing: border-box;
    color: var(--text-primary);
  }
  html.design-v2 .filter-group select {
    padding-right: 1.6rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%238494a7'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.6rem center;
  }
  html.design-v2 .btn-reset {
    font-size: 0.72rem;
    height: 36px;
    width: 100%;
    background: rgba(232,114,42,0.1);
    color: #e8722a;
    border: 1.5px solid #e8722a;
    font-weight: 600;
    border-radius: 20px;
    align-self: end;
  }

  /* Main — tighter spacing */
  html.design-v2 .main {
    padding: 0.75rem 0.75rem 2rem;
    gap: 1rem;
  }

  /* Summary cards — compact */
  html.design-v2 .summary-card {
    padding: 0.75rem 0.9rem;
    border-radius: 14px;
  }
  html.design-v2 .summary-card__icon {
    width: 32px; height: 32px;
    border-radius: 9px;
    font-size: 1rem;
    margin-bottom: 0.5rem;
  }
  html.design-v2 .summary-card__label {
    font-size: 0.58rem;
  }
  html.design-v2 .summary-card__value {
    font-size: 1.3rem;
  }
  html.design-v2 .summary-card__value--text {
    font-size: 1rem;
  }
  html.design-v2 .summary-card__change {
    font-size: 0.62rem;
  }
  html.design-v2 .summary-card:hover {
    transform: none;
  }

  /* Section cards */
  html.design-v2 .section-card {
    border-radius: 14px;
  }
  html.design-v2 .section-card__header {
    padding: 0.7rem 0.85rem 0.5rem;
  }
  html.design-v2 .section-card__title {
    font-size: 0.88rem;
  }
  html.design-v2 .section-card__body {
    padding: 0.7rem 0.85rem 0.85rem;
  }

  /* View toggle — smaller */
  html.design-v2 .view-toggle__btn {
    padding: 0.22rem 0.55rem;
    font-size: 0.6rem;
  }

  /* Data table — more compact */
  html.design-v2 .data-table th {
    padding: 0.4rem 0.5rem;
    font-size: 0.52rem;
  }
  html.design-v2 .data-table td {
    padding: 0.4rem 0.5rem;
    font-size: 0.7rem;
  }

  /* Footer — compact mobile */
  html.design-v2 .footer {
    padding: 1rem 1rem 0.75rem;
  }
  html.design-v2 .footer__inner {
    gap: 0.75rem;
    align-items: center;
  }
  html.design-v2 .footer__logo {
    height: 28px;
  }
  html.design-v2 .footer__legal {
    font-size: 0.6rem;
    gap: 0.1rem;
  }
  html.design-v2 .footer__socials {
    gap: 0.6rem;
  }
  html.design-v2 .footer__socials svg {
    width: 20px;
    height: 20px;
  }
  html.design-v2 .footer__contacts {
    font-size: 0.68rem;
    gap: 0.15rem;
    align-items: center;
    text-align: center;
  }
}

@media (max-width: 480px) {
  html.design-v2 .header__title {
    font-size: 0.85rem;
  }
  html.design-v2 .header__logo {
    height: 28px;
  }
  html.design-v2 .summary-card__value {
    font-size: 1.15rem;
  }
}
