/* ==============================================================
   BASE.CSS — Core layout, sidebar, global styles
   PropulsoIQ UI Redesign — Phase 1
   Updated: 2026-03-14
   ============================================================== */

/* ── CSS Design Tokens ────────────────────────────────────────── */
:root {
  /* Background layers — Figma Blue palette */
  --color-bg-deep:     #0b1628;
  --color-bg-base:     #0e1f35;
  --color-bg-card:     #111e33;
  --color-bg-elevated: #162540;

  /* Borders */
  --color-border-subtle: #1a2d45;
  --color-border:        #243a55;
  --color-border-mid:    #2e4a68;

  /* Accent colors */
  --color-accent:    #00c4b2;
  --color-teal:      #00c4b2;
  --color-success:   #22c55e;
  --color-warning:   #f59e0b;
  --color-danger:    #ef4444;
  --color-info:      #38bdf8;

  /* Text */
  --color-text-primary:   #ffffff;
  --color-text-secondary: #e2e8f0;
  --color-text-muted:     #94a3b8;
  --color-text-dim:       #64748b;

  /* Sidebar */
  --sidebar-w:           220px;
  --sidebar-collapsed-w: 64px;
  --shell-gap:           0px;

  /* Z-index scale — centralised to avoid conflicts */
  --z-dropdown:   100;
  --z-sticky:     200;
  --z-sidebar:    300;
  --z-overlay:    400;
  --z-modal:      500;
  --z-toast:      600;
  --z-tooltip:    700;

  /* Page-specific accent tokens (used by main.css, auxiliary_engine.css) */
  --accent-1:    #00c4b2;
  --accent-2:    #009e8e;
  --edge:        #243a55;
  --panel:       #0e1f35;
  --panel-2:     #0e1f35;
  --field:       #162540;
  --field-soft:  #162540d6;
  --topnav-h:    0px;
  --charts-gap:  50px;

  /* Frequently hardcoded colors — now centralized */
  --color-teal-primary:   #51cfef;
  --color-teal-secondary: #00c4b2;
  --color-text-light:     #eafef6;
  --color-text-cyan:      #cfefff;
  --color-border-dark:    #2d3148;

  /* Spacing scale */
  --space-xs:  4px;
  --space-sm:  8px;
  --space-md:  12px;
  --space-lg:  16px;
  --space-xl:  20px;
  --space-2xl: 24px;

  /* Legacy aliases (backward compat with existing pages) */
  --bg1:       #0b1628;
  --bg2:       #0e1f35;
  --panel1:    #0b1628;
  --panel2:    #162540;
  --border:    #243a55;
  --text:      #e2e8f0;
  --btn1:      #162540;
  --btn1-hover:#1e3050;
  --white:     #ffffff;
}

/* ── Reset ────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }

body.app-body {
  min-height: 100vh;
  background: var(--color-bg-deep);
  color: var(--color-text-secondary);
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ── Shell (sidebar + content) ───────────────────────────────── */
.shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
  gap: 0;
  padding: 0;
  transition: grid-template-columns 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Content area ────────────────────────────────────────────── */
.content {
  min-width: 0;
  padding: 0 20px 24px 20px;
  background: #0d1628;
}

/* ── Sidebar ─────────────────────────────────────────────────── */
.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  background: #0d1628;
  border-right: 1px solid var(--color-border-subtle);
  padding: 0 0 56px;
  overflow: hidden;
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  max-width: var(--sidebar-w);
  display: flex;
  flex-direction: column;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              min-width 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              max-width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 100;
}

.sidebar-inner {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: none;
}
.sidebar-inner::-webkit-scrollbar { display: none; }

/* ── Logo / Brand ────────────────────────────────────────────── */
.sidebar-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px 12px 12px;
  transition: padding 0.3s ease;
}
.sidebar-brand a {
  display: block;
  text-decoration: none;
  line-height: 0;
}
.sidebar-logo {
  width: 100px;
  height: 100px;
  object-fit: contain;
  display: block;
  transition: width 0.3s ease, height 0.3s ease, opacity 0.2s ease;
}

/* Logo в collapsed режим */
.sidebar.collapsed .sidebar-logo {
  width: 36px;
  height: 36px;
}
.sidebar.collapsed .sidebar-brand {
  padding: 14px 8px 10px;
}

/* ── Divider ─────────────────────────────────────────────────── */
.sidebar-divider {
  height: 1px;
  background: var(--color-border-subtle);
  margin: 0 12px 8px;
  transition: margin 0.3s ease;
}
.sidebar.collapsed .sidebar-divider {
  margin: 0 8px 8px;
}

/* ── Navigation menu ─────────────────────────────────────────── */
.side-menu {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 4px 8px;
}

/* ── Menu items ──────────────────────────────────────────────── */
.side-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 7px 8px;
  cursor: pointer;
  background: transparent;
  border: none;
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 500;
  width: 100%;
  text-align: left;
  white-space: nowrap;
  position: relative;
  transition: background 0.15s ease, color 0.15s ease;
  outline: none;
}

.side-item:hover {
  background: rgba(81, 207, 239,0.2);
  color: var(--color-text-secondary);
}
.side-item:hover .side-icon-wrap {
  background: rgba(81, 207, 239,0.2);
  color: var(--color-teal);
}

/* Active state */
.side-item.active {
  background: rgba(22, 39, 54, 1);
  color: #24d1f1;
  font-weight: 600;
}
.side-item.active .side-icon-wrap {
  color: #24d1f1;
}

/* Coming soon (не е активна) */
/* Language toggle */
.sidebar-lang-toggle { padding: 8px 12px; margin-top: auto; }
.lang-btn {
  width: 100%; padding: 5px; border-radius: 6px; cursor: pointer;
  border: 1px solid rgba(234,254,246,0.15); background: rgba(234,254,246,0.04);
  color: rgba(234,254,246,0.6); font-size: 0.72rem; font-weight: 700;
  letter-spacing: 1px; transition: all 0.2s;
}
.lang-btn:hover { border-color: rgba(234,254,246,0.3); color: #eafef6; background: rgba(234,254,246,0.08); }

.side-item--soon, .sub-item--soon {
  opacity: 0.45;
  cursor: default;
  pointer-events: none;
}
.soon-tag {
  font-size: 9px; padding: 1px 5px; border-radius: 3px; margin-left: 4px;
  background: rgba(234,254,246,0.08); color: rgba(234,254,246,0.4);
  vertical-align: middle; letter-spacing: 0.3px;
}

/* ── Icon wrapper ────────────────────────────────────────────── */
.side-icon-wrap {
  width: 30px;
  height: 30px;
  min-width: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 7px;
  background: transparent;
  font-size: 15px;
  transition: background 0.15s ease, color 0.15s ease;
  flex-shrink: 0;
}

/* ── Chevron (expand/collapse) ───────────────────────────────── */
.side-item .chev {
  font-size: 11px;
  margin-left: auto;
  transition: transform 0.2s ease, opacity 0.2s ease;
  opacity: 0.6;
}
.side-item[aria-expanded="true"] .chev {
  transform: rotate(180deg);
  opacity: 1;
}

/* ── Submenu ─────────────────────────────────────────────────── */
.submenu {
  display: flex;
  flex-direction: column;
  gap: 1px;
  padding: 2px 8px 4px 8px;
  overflow: hidden;
}

.sub-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px 6px 14px;
  background: transparent;
  border: none;
  border-radius: 7px;
  color: var(--color-text-dim);
  text-decoration: none;
  font-size: 13px;
  font-weight: 400;
  white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease;
  cursor: pointer;
  width: 100%;
  text-align: left;
}
.sub-item:hover {
  background: rgba(34, 193, 166, 0.07);
  color: var(--color-text-secondary);
}
.sub-item.active {
  background: rgb(25, 39, 54);
  color: #46cfef;
  font-weight: 500;
}
.sub-icon {
  font-size: 13px;
  opacity: 0.7;
  flex-shrink: 0;
}
.sub-item.active .sub-icon {
  opacity: 1;
  color: var(--color-teal);
}

/* ── Sidebar toggle button ───────────────────────────────────── */
.sidebar-toggle-btn {
  position: absolute;
  bottom: 14px;
  right: 14px;
  transform: none;
  width: 32px;
  height: 32px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text-muted);
  font-size: 13px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  z-index: 10;
}
.sidebar-toggle-btn:hover {
  background: rgba(124, 131, 253, 0.15);
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.toggle-icon {
  transition: transform 0.3s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ═══════════════════════════════════════════════════════════════
   COLLAPSED STATE
   ═══════════════════════════════════════════════════════════════ */
.sidebar.collapsed {
  width: var(--sidebar-collapsed-w) !important;
  min-width: var(--sidebar-collapsed-w);
  max-width: var(--sidebar-collapsed-w);
}

/* Скриваме текста и chevron-а */
.sidebar.collapsed .item-text,
.sidebar.collapsed .chev {
  display: none !important;
}

/* Скриваме submenu */
.sidebar.collapsed .submenu {
  display: none !important;
}

/* Центрираме иконите */
.sidebar.collapsed .side-item {
  justify-content: center;
  padding: 8px 6px;
  gap: 0;
}
.sidebar.collapsed .side-icon-wrap {
  width: 34px;
  height: 34px;
  font-size: 17px;
}

/* Menu padding в collapsed */
.sidebar.collapsed .side-menu {
  padding: 4px 4px;
}

/* Rotate toggle icon в collapsed */
.sidebar.collapsed .toggle-icon {
  transform: rotate(180deg);
}

/* Shell grid update */
.shell:has(.sidebar.collapsed) {
  grid-template-columns: var(--sidebar-collapsed-w) 1fr;
}

/* ═══════════════════════════════════════════════════════════════
   HOVER-EXPAND (само докато е collapsed)
   ═══════════════════════════════════════════════════════════════ */
.sidebar.collapsed.hover-expand {
  width: var(--sidebar-w) !important;
  min-width: var(--sidebar-w);
  max-width: var(--sidebar-w);
  box-shadow: 4px 0 24px rgba(0, 0, 0, 0.4);
}

.sidebar.collapsed.hover-expand .item-text {
  display: inline !important;
}
.sidebar.collapsed.hover-expand .chev {
  display: inline-flex !important;
}
.sidebar.collapsed.hover-expand .side-item {
  justify-content: flex-start;
  padding: 7px 8px;
  gap: 10px;
}
.sidebar.collapsed.hover-expand .side-icon-wrap {
  width: 30px;
  height: 30px;
  font-size: 15px;
}
.sidebar.collapsed.hover-expand .side-menu {
  padding: 4px 8px;
}
.sidebar.collapsed.hover-expand .toggle-icon {
  transform: rotate(180deg);
}
/* Submenu НЕ се показва само на hover (само при click) */
.sidebar.collapsed.hover-expand .submenu {
  display: none !important;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  :root {
    --sidebar-w: var(--sidebar-collapsed-w);
  }

  .sidebar {
    width: var(--sidebar-collapsed-w) !important;
    min-width: var(--sidebar-collapsed-w);
  }
  .sidebar .item-text,
  .sidebar .chev {
    display: none !important;
  }
  .sidebar .side-item {
    justify-content: center;
    padding: 8px 6px;
  }
  .sidebar-toggle-btn {
    display: none !important;
  }
  .shell {
    grid-template-columns: var(--sidebar-collapsed-w) 1fr !important;
  }
}

@media (max-width: 768px) {
  .sidebar {
    width: 56px !important;
    min-width: 56px;
  }
  .shell {
    grid-template-columns: 56px 1fr !important;
  }
}

/* True mobile: hide sidebar completely, show hamburger */
@media (max-width: 600px) {
  .sidebar {
    position: fixed;
    left: -220px;
    top: 0;
    height: 100vh;
    width: 220px !important;
    min-width: 220px;
    z-index: var(--z-modal, 500);
    transition: left 0.3s ease;
  }
  .sidebar.sidebar--mobile-open {
    left: 0;
  }
  .shell {
    grid-template-columns: 1fr !important;
  }
}

/* ═══════════════════════════════════════════════════════════════
   UNIT SELECT — Global dropdown (Performance + Shop)
   ═══════════════════════════════════════════════════════════════ */
.unit-label {
  opacity: 0.8;
}

.unit-select {
  background-color: transparent;
  border: none;
  color: var(--text, #c8d0e8);
  font: inherit;
  padding: 0 14px 0 2px;
  width: auto;
  min-width: 0;
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, #c8d0e8 50%),
    linear-gradient(135deg, #c8d0e8 50%, transparent 50%);
  background-position:
    calc(100% - 9px) 55%,
    calc(100% - 4px) 55%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}
.unit-select::-ms-expand { display: none; }
.unit-select:focus { outline: none; }
.unit-select option {
  color: var(--text, #c8d0e8);
  background-color: #111e33;
}
.unit-select:disabled {
  cursor: default;
  opacity: 0.5;
  pointer-events: none;
}