/* ============================================================
   EduSphere ERP — Modern Monochrome Design System
   Inspired by Interview_X / Notion / Linear Black & White Theme
   ============================================================ */

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

:root {
  /* Core monochrome paper & ink palette */
  --ink: #09090B;
  --ink2: #37352F;
  --paper: #FFFFFF;
  --paper2: #F7F6F3;
  --paper3: #EFEEEC;
  --panel: #FFFFFF;
  --inset: #FBFBFA;
  --chip: #F1F0EE;
  
  --line: rgba(55, 53, 47, 0.12);
  --line2: rgba(55, 53, 47, 0.20);
  --line-strong: rgba(55, 53, 47, 0.35);

  --t1: #09090B;
  --t2: #3F3D39;
  --t3: #6B6862;
  --t4: #9B9893;

  --shadow-soft: 0 1px 0 rgba(15, 15, 15, 0.04), 0 2px 8px -4px rgba(15, 15, 15, 0.10);
  --shadow-card: 0 12px 32px -16px rgba(15, 15, 15, 0.18);
  --shadow-hover: 0 16px 36px -12px rgba(15, 15, 15, 0.25);
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 22px;
  --radius-pill: 9999px;

  --font-sans: 'Plus Jakarta Sans', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-heading: 'Outfit', var(--font-sans);
}

/* Dark Mode Overrides */
html.dark, body.dark, .dark {
  --ink: #FAFAFA;
  --ink2: #EDEDED;
  --paper: #09090B;
  --paper2: #18181B;
  --paper3: #18181B;
  --panel: #18181B;
  --inset: #09090B;
  --chip: #27272A;

  --line: rgba(255, 255, 255, 0.12);
  --line2: rgba(255, 255, 255, 0.20);
  --line-strong: rgba(255, 255, 255, 0.35);

  --t1: #FAFAFA;
  --t2: #D4D4D8;
  --t3: #A1A1AA;
  --t4: #71717A;

  --shadow-soft: 0 1px 0 rgba(0, 0, 0, 0.4), 0 2px 10px -4px rgba(0, 0, 0, 0.5);
  --shadow-card: 0 18px 50px -20px rgba(0, 0, 0, 0.75);
}

/* Base resets & typography */
body {
  font-family: var(--font-sans) !important;
  background-color: var(--paper) !important;
  color: var(--t1) !important;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading) !important;
  color: var(--t1) !important;
  letter-spacing: -0.02em !important;
}

/* Eliminate All Default Blue/Orange Browser Focus Outlines */
textarea, textarea:focus, textarea:focus-visible,
input, input:focus, input:focus-visible,
select, select:focus, select:focus-visible {
  outline: none !important;
  box-shadow: none !important;
}

/* ============================================================
   1. BUTTON ARCHITECTURE (Interview_X Standard)
   ============================================================ */
button, .btn, .btn-primary, [type="button"], [type="submit"] {
  font-family: var(--font-sans) !important;
  font-weight: 600 !important;
  border-radius: 10px !important;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

/* Solid Monochrome Primary */
.btn-primary, button.btn-primary, .bg-primary, .btn-primary-gradient {
  background: var(--ink) !important;
  color: var(--paper) !important;
  border: 1px solid var(--ink) !important;
  box-shadow: var(--shadow-soft) !important;
}

.btn-primary:hover, button.btn-primary:hover, .bg-primary:hover {
  transform: translateY(-1px) !important;
  box-shadow: 0 10px 24px -10px rgba(15, 15, 15, 0.45) !important;
  background: var(--ink2) !important;
}

/* Ghost / Secondary Button */
.btn-secondary, .btn-ghost, .btn-outline, .btn-default {
  background: var(--paper) !important;
  color: var(--t1) !important;
  border: 1px solid var(--line2) !important;
}

.btn-secondary:hover, .btn-ghost:hover, .btn-outline:hover, .btn-default:hover {
  background: var(--paper2) !important;
  border-color: var(--ink) !important;
  color: var(--ink) !important;
}

/* Icon Buttons */
.btn-icon {
  width: 38px !important;
  height: 38px !important;
  display: inline-grid !important;
  place-items: center !important;
  border-radius: 10px !important;
  border: 1px solid var(--line) !important;
  background: var(--paper) !important;
  color: var(--t1) !important;
}

.btn-icon:hover {
  background: var(--paper2) !important;
  border-color: var(--line2) !important;
}

/* ============================================================
   2. ICON CONTAINERS & ICON WRAPPERS (.icon-wrap)
   ============================================================ */
.icon-wrap, .feature-icon, .avatar-icon {
  width: 44px !important;
  height: 44px !important;
  border-radius: 12px !important;
  display: inline-grid !important;
  place-items: center !important;
  background: var(--paper2) !important;
  border: 1px solid var(--line) !important;
  color: var(--ink) !important;
  transition: all 0.2s ease !important;
}

.icon-wrap:hover {
  transform: scale(1.04) !important;
  border-color: var(--line2) !important;
}

/* Force monochrome clean strokes on icons */
svg {
  stroke-width: 2px !important;
}

/* ============================================================
   3. CARDS, PANELS & SURFACES (.card, .panel, .card-pro)
   ============================================================ */
.card, .panel, .box, .widget, .card-pro {
  background: var(--panel) !important;
  border: 1px solid var(--line) !important;
  border-radius: 16px !important;
  box-shadow: var(--shadow-soft) !important;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.card:hover, .panel:hover {
  border-color: var(--line2) !important;
  box-shadow: var(--shadow-card) !important;
}

.card-header, .panel-heading {
  background: transparent !important;
  border-bottom: 1px solid var(--line) !important;
  padding: 16px 20px !important;
}

.card-footer {
  background: var(--paper2) !important;
  border-top: 1px solid var(--line) !important;
  border-radius: 0 0 16px 16px !important;
}

/* Inset Sub-panels (.panel2) */
.panel2, .well, .sub-card {
  background: var(--inset) !important;
  border: 1px solid var(--line) !important;
  border-radius: 12px !important;
}

/* Hairline dividers */
.dash, hr, .divider {
  border: none !important;
  height: 1px !important;
  background: var(--line) !important;
  margin: 1.5rem 0 !important;
}

/* ============================================================
   4. FORM CONTROLS & INPUTS (.input)
   ============================================================ */
input[type="text"], input[type="email"], input[type="password"],
input[type="number"], input[type="search"], input[type="tel"],
input[type="date"], select, textarea, .form-control, .input {
  background-color: var(--inset) !important;
  border: 1px solid var(--line2) !important;
  border-radius: 10px !important;
  color: var(--t1) !important;
  padding: 0.72rem 0.85rem !important;
  font-size: 0.95rem !important;
  transition: all 0.15s ease !important;
}

input:focus, select:focus, textarea:focus, .form-control:focus, .input:focus {
  border-color: var(--ink) !important;
  background-color: var(--paper) !important;
  box-shadow: 0 0 0 3px var(--chip) !important;
}

input::placeholder, textarea::placeholder {
  color: var(--t4) !important;
}

/* ============================================================
   5. NAVIGATION & SIDEBAR STYLING
   ============================================================ */
.sidebar, .nav-sidebar, aside {
  background-color: var(--paper2) !important;
  border-right: 1px solid var(--line) !important;
}

.sidebar a, .nav-sidebar a, .sidebar-link {
  color: var(--t3) !important;
  border-radius: 8px !important;
  font-weight: 500 !important;
  transition: all 0.15s ease !important;
}

.sidebar a:hover, .sidebar-link:hover {
  background-color: var(--paper3) !important;
  color: var(--t1) !important;
}

.sidebar a.active, .sidebar-link.active, .router-link-active {
  background-color: var(--ink) !important;
  color: var(--paper) !important;
  font-weight: 600 !important;
}

/* Top Navbar */
header, .navbar, .top-nav {
  background: color-mix(in srgb, var(--paper) 88%, transparent) !important;
  backdrop-filter: blur(12px) !important;
  border-bottom: 1px solid var(--line) !important;
}

/* ============================================================
   6. BADGES, CHIPS & STATUS PILLS (.badge, .tag)
   ============================================================ */
.badge, .tag, .chip {
  display: inline-flex !important;
  align-items: center !important;
  gap: 0.35rem !important;
  padding: 0.25rem 0.7rem !important;
  border-radius: var(--radius-pill) !important;
  font-size: 0.72rem !important;
  font-weight: 700 !important;
  letter-spacing: 0.04em !important;
  text-transform: uppercase !important;
  border: 1px solid var(--line2) !important;
  background: var(--chip) !important;
  color: var(--t2) !important;
}

.badge-primary, .badge-active {
  background: var(--ink) !important;
  color: var(--paper) !important;
  border-color: var(--ink) !important;
}

.badge-outline {
  background: transparent !important;
  border: 1px solid var(--ink) !important;
  color: var(--ink) !important;
}

/* Blinking status dot (.live) */
.live::before {
  content: "" !important;
  display: inline-block !important;
  width: 7px !important;
  height: 7px !important;
  border-radius: 50% !important;
  background: var(--ink) !important;
  margin-right: 6px !important;
  animation: blink 1.6s infinite !important;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.25; }
}

/* ============================================================
   7. DATA TABLES & MATRICES (.table, .cmp)
   ============================================================ */
table, .table, .cmp {
  width: 100% !important;
  border-collapse: separate !important;
  border-spacing: 0 !important;
  border: 1px solid var(--line) !important;
  border-radius: 14px !important;
  overflow: hidden !important;
  background: var(--panel) !important;
}

th, .table thead th, .cmp thead th {
  background: var(--paper2) !important;
  color: var(--t3) !important;
  font-size: 0.78rem !important;
  font-weight: 700 !important;
  letter-spacing: 0.05em !important;
  text-transform: uppercase !important;
  padding: 12px 16px !important;
  border-bottom: 1px solid var(--line) !important;
}

td, .table tbody td, .cmp tbody td {
  padding: 14px 16px !important;
  border-bottom: 1px solid var(--line) !important;
  font-size: 0.92rem !important;
  color: var(--t2) !important;
}

tr:last-child td {
  border-bottom: none !important;
}

tr:hover td {
  background-color: var(--paper2) !important;
}

/* ============================================================
   8. MODALS & DIALOGS
   ============================================================ */
.modal-content, .dialog, .popup {
  background: var(--panel) !important;
  border: 1px solid var(--line2) !important;
  border-radius: 20px !important;
  box-shadow: var(--shadow-card) !important;
}

.modal-backdrop {
  background: rgba(9, 13, 22, 0.7) !important;
  backdrop-filter: blur(8px) !important;
}

/* ============================================================
   9. SCROLLBARS
   ============================================================ */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--paper);
}

::-webkit-scrollbar-thumb {
  background: var(--line2);
  border-radius: 9999px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--line-strong);
}