/**
 * Stella.Support — Custom CSS Framework
 * Replaces Bootstrap CSS with a modern, lightweight system
 * Keeps Bootstrap-compatible class names so templates work unchanged
 */

/* ═══════════════════════════════════════════
   RESET & BASE
   ═══════════════════════════════════════════ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ═══════════════════════════════════════════
   TYPOGRAPHY
   ═══════════════════════════════════════════ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}

h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }
h5 { font-size: var(--text-md); }
h6 { font-size: var(--text-base); }

p { margin-bottom: var(--space-4); }

a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

small, .small { font-size: var(--text-sm); }
.lead { font-size: var(--text-lg); font-weight: var(--weight-normal); }
.display-1 { font-size: var(--text-4xl); font-weight: var(--weight-bold); }
.display-4 { font-size: var(--text-3xl); font-weight: var(--weight-bold); }
.display-5 { font-size: var(--text-2xl); font-weight: var(--weight-bold); }

strong, .fw-bold { font-weight: var(--weight-bold); }
.fw-normal { font-weight: var(--weight-normal); }
.fw-semibold { font-weight: var(--weight-semibold); }

.fs-5 { font-size: var(--text-lg); }
.fs-6 { font-size: var(--text-base); }

code, kbd, pre, samp {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}

pre {
  background: var(--color-bg-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  overflow-x: auto;
}

hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-4) 0;
}


/* ═══════════════════════════════════════════
   GRID SYSTEM (CSS Grid based)
   ═══════════════════════════════════════════ */

.container {
  width: 100%;
  max-width: var(--content-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.container-fluid {
  width: 100%;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin-left: calc(var(--space-3) * -1);
  margin-right: calc(var(--space-3) * -1);
}

.row > * {
  flex-shrink: 0;
  width: 100%;
  padding-left: var(--space-3);
  padding-right: var(--space-3);
}

/* Column sizes (12-column grid) */
.col-1  { flex: 0 0 8.333%; max-width: 8.333%; }
.col-2  { flex: 0 0 16.667%; max-width: 16.667%; }
.col-3  { flex: 0 0 25%; max-width: 25%; }
.col-4  { flex: 0 0 33.333%; max-width: 33.333%; }
.col-5  { flex: 0 0 41.667%; max-width: 41.667%; }
.col-6  { flex: 0 0 50%; max-width: 50%; }
.col-7  { flex: 0 0 58.333%; max-width: 58.333%; }
.col-8  { flex: 0 0 66.667%; max-width: 66.667%; }
.col-9  { flex: 0 0 75%; max-width: 75%; }
.col-10 { flex: 0 0 83.333%; max-width: 83.333%; }
.col-11 { flex: 0 0 91.667%; max-width: 91.667%; }
.col-12 { flex: 0 0 100%; max-width: 100%; }

/* Row columns */
.row-cols-1 > * { flex: 0 0 100%; max-width: 100%; }
.row-cols-2 > * { flex: 0 0 50%; max-width: 50%; }
.row-cols-3 > * { flex: 0 0 33.333%; max-width: 33.333%; }

/* SM breakpoint */
@media (min-width: 640px) {
  .col-sm-3 { flex: 0 0 25%; max-width: 25%; }
  .col-sm-4 { flex: 0 0 33.333%; max-width: 33.333%; }
  .col-sm-6 { flex: 0 0 50%; max-width: 50%; }
  .col-sm-8 { flex: 0 0 66.667%; max-width: 66.667%; }
  .col-sm-12 { flex: 0 0 100%; max-width: 100%; }
}

/* MD breakpoint */
@media (min-width: 768px) {
  .col-md-2 { flex: 0 0 16.667%; max-width: 16.667%; }
  .col-md-3 { flex: 0 0 25%; max-width: 25%; }
  .col-md-4 { flex: 0 0 33.333%; max-width: 33.333%; }
  .col-md-5 { flex: 0 0 41.667%; max-width: 41.667%; }
  .col-md-6 { flex: 0 0 50%; max-width: 50%; }
  .col-md-7 { flex: 0 0 58.333%; max-width: 58.333%; }
  .col-md-8 { flex: 0 0 66.667%; max-width: 66.667%; }
  .col-md-9 { flex: 0 0 75%; max-width: 75%; }
  .col-md-10 { flex: 0 0 83.333%; max-width: 83.333%; }
  .col-md-12 { flex: 0 0 100%; max-width: 100%; }
  .row-cols-md-2 > * { flex: 0 0 50%; max-width: 50%; }
  .row-cols-md-3 > * { flex: 0 0 33.333%; max-width: 33.333%; }
}

/* LG breakpoint */
@media (min-width: 1024px) {
  .col-lg-2 { flex: 0 0 16.667%; max-width: 16.667%; }
  .col-lg-3 { flex: 0 0 25%; max-width: 25%; }
  .col-lg-4 { flex: 0 0 33.333%; max-width: 33.333%; }
  .col-lg-5 { flex: 0 0 41.667%; max-width: 41.667%; }
  .col-lg-6 { flex: 0 0 50%; max-width: 50%; }
  .col-lg-7 { flex: 0 0 58.333%; max-width: 58.333%; }
  .col-lg-8 { flex: 0 0 66.667%; max-width: 66.667%; }
  .col-lg-9 { flex: 0 0 75%; max-width: 75%; }
  .col-lg-10 { flex: 0 0 83.333%; max-width: 83.333%; }
  .col-lg-12 { flex: 0 0 100%; max-width: 100%; }
  .row-cols-lg-3 > * { flex: 0 0 33.333%; max-width: 33.333%; }
  .row-cols-lg-4 > * { flex: 0 0 25%; max-width: 25%; }
}

/* XL breakpoint */
@media (min-width: 1280px) {
  .col-xl-3 { flex: 0 0 25%; max-width: 25%; }
  .col-xl-4 { flex: 0 0 33.333%; max-width: 33.333%; }
  .col-xl-6 { flex: 0 0 50%; max-width: 50%; }
  .col-xl-8 { flex: 0 0 66.667%; max-width: 66.667%; }
  .col-xl-9 { flex: 0 0 75%; max-width: 75%; }
}

/* Grid gap utilities (horizontal + vertical gutters) */
.g-1 > * { padding-left: calc(var(--space-1) / 2); padding-right: calc(var(--space-1) / 2); margin-bottom: var(--space-1); }
.g-2 > * { padding-left: calc(var(--space-2) / 2); padding-right: calc(var(--space-2) / 2); margin-bottom: var(--space-2); }
.g-3 > * { padding-left: calc(var(--space-3) / 2); padding-right: calc(var(--space-3) / 2); margin-bottom: var(--space-3); }
.g-4 > * { padding-left: calc(var(--space-4) / 2); padding-right: calc(var(--space-4) / 2); margin-bottom: var(--space-4); }


/* ═══════════════════════════════════════════
   DISPLAY UTILITIES
   ═══════════════════════════════════════════ */

.d-none { display: none !important; }
.d-block { display: block !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-flex { display: flex !important; }
.d-inline-flex { display: inline-flex !important; }
.d-grid { display: grid !important; }

@media (min-width: 640px) {
  .d-sm-none { display: none !important; }
  .d-sm-block { display: block !important; }
  .d-sm-flex { display: flex !important; }
  .d-sm-inline { display: inline !important; }
  .d-sm-inline-block { display: inline-block !important; }
}

@media (min-width: 768px) {
  .d-md-none { display: none !important; }
  .d-md-block { display: block !important; }
  .d-md-flex { display: flex !important; }
  .d-md-inline { display: inline !important; }
  .d-md-inline-block { display: inline-block !important; }
  .d-md-table-cell { display: table-cell !important; }
}

@media (min-width: 1024px) {
  .d-lg-none { display: none !important; }
  .d-lg-block { display: block !important; }
  .d-lg-flex { display: flex !important; }
  .d-lg-inline { display: inline !important; }
  .d-lg-table-cell { display: table-cell !important; }
}


/* ═══════════════════════════════════════════
   FLEXBOX UTILITIES
   ═══════════════════════════════════════════ */

.flex-row { flex-direction: row; }
.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }
.flex-grow-0 { flex-grow: 0; }
.flex-grow-1 { flex-grow: 1; }
.flex-shrink-0 { flex-shrink: 0; }

.justify-content-start { justify-content: flex-start; }
.justify-content-end { justify-content: flex-end; }
.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.justify-content-around { justify-content: space-around; }
.justify-content-evenly { justify-content: space-evenly; }

@media (min-width: 640px) {
  .justify-content-sm-center { justify-content: center; }
}
@media (min-width: 768px) {
  .justify-content-md-end { justify-content: flex-end; }
}

.align-items-start { align-items: flex-start; }
.align-items-center { align-items: center; }
.align-items-end { align-items: flex-end; }
.align-items-stretch { align-items: stretch; }
.align-middle { vertical-align: middle; }
.align-self-center { align-self: center; }

.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }

.order-1 { order: 1; }
.order-2 { order: 2; }


/* ═══════════════════════════════════════════
   SPACING UTILITIES
   ═══════════════════════════════════════════ */

/* Margin */
.m-0 { margin: 0 !important; }
.m-1 { margin: var(--space-1) !important; }
.m-2 { margin: var(--space-2) !important; }
.m-3 { margin: var(--space-3) !important; }
.m-4 { margin: var(--space-4) !important; }
.m-auto { margin: auto !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: var(--space-1) !important; }
.mt-2 { margin-top: var(--space-2) !important; }
.mt-3 { margin-top: var(--space-3) !important; }
.mt-4 { margin-top: var(--space-4) !important; }
.mt-5 { margin-top: var(--space-6) !important; }
.mt-auto { margin-top: auto !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: var(--space-1) !important; }
.mb-2 { margin-bottom: var(--space-2) !important; }
.mb-3 { margin-bottom: var(--space-3) !important; }
.mb-4 { margin-bottom: var(--space-4) !important; }
.mb-5 { margin-bottom: var(--space-6) !important; }

.ms-0 { margin-left: 0 !important; }
.ms-1 { margin-left: var(--space-1) !important; }
.ms-2 { margin-left: var(--space-2) !important; }
.ms-3 { margin-left: var(--space-3) !important; }
.ms-auto { margin-left: auto !important; }

.me-0 { margin-right: 0 !important; }
.me-1 { margin-right: var(--space-1) !important; }
.me-2 { margin-right: var(--space-2) !important; }
.me-3 { margin-right: var(--space-3) !important; }
.me-auto { margin-right: auto !important; }

.mx-0 { margin-left: 0 !important; margin-right: 0 !important; }
.mx-1 { margin-left: var(--space-1) !important; margin-right: var(--space-1) !important; }
.mx-2 { margin-left: var(--space-2) !important; margin-right: var(--space-2) !important; }
.mx-auto { margin-left: auto !important; margin-right: auto !important; }

.my-0 { margin-top: 0 !important; margin-bottom: 0 !important; }
.my-1 { margin-top: var(--space-1) !important; margin-bottom: var(--space-1) !important; }
.my-2 { margin-top: var(--space-2) !important; margin-bottom: var(--space-2) !important; }
.my-3 { margin-top: var(--space-3) !important; margin-bottom: var(--space-3) !important; }
.my-4 { margin-top: var(--space-4) !important; margin-bottom: var(--space-4) !important; }
.my-5 { margin-top: var(--space-6) !important; margin-bottom: var(--space-6) !important; }

/* Padding */
.p-0 { padding: 0 !important; }
.p-1 { padding: var(--space-1) !important; }
.p-2 { padding: var(--space-2) !important; }
.p-3 { padding: var(--space-3) !important; }
.p-4 { padding: var(--space-4) !important; }
.p-5 { padding: var(--space-6) !important; }

.pt-0 { padding-top: 0 !important; }
.pt-1 { padding-top: var(--space-1) !important; }
.pt-2 { padding-top: var(--space-2) !important; }
.pt-3 { padding-top: var(--space-3) !important; }
.pt-4 { padding-top: var(--space-4) !important; }

.pb-0 { padding-bottom: 0 !important; }
.pb-2 { padding-bottom: var(--space-2) !important; }
.pb-3 { padding-bottom: var(--space-3) !important; }
.pb-4 { padding-bottom: var(--space-4) !important; }

.ps-0 { padding-left: 0 !important; }
.ps-2 { padding-left: var(--space-2) !important; }
.ps-3 { padding-left: var(--space-3) !important; }
.ps-4 { padding-left: var(--space-4) !important; }

.pe-0 { padding-right: 0 !important; }
.pe-2 { padding-right: var(--space-2) !important; }
.pe-3 { padding-right: var(--space-3) !important; }
.pe-4 { padding-right: var(--space-4) !important; }

.px-0 { padding-left: 0 !important; padding-right: 0 !important; }
.px-2 { padding-left: var(--space-2) !important; padding-right: var(--space-2) !important; }
.px-3 { padding-left: var(--space-3) !important; padding-right: var(--space-3) !important; }
.px-4 { padding-left: var(--space-4) !important; padding-right: var(--space-4) !important; }

.py-0 { padding-top: 0 !important; padding-bottom: 0 !important; }
.py-2 { padding-top: var(--space-2) !important; padding-bottom: var(--space-2) !important; }
.py-3 { padding-top: var(--space-3) !important; padding-bottom: var(--space-3) !important; }
.py-4 { padding-top: var(--space-4) !important; padding-bottom: var(--space-4) !important; }
.py-5 { padding-top: var(--space-6) !important; padding-bottom: var(--space-6) !important; }

/* Responsive spacing */
@media (min-width: 640px) {
  .me-sm-3 { margin-right: var(--space-3) !important; }
}


/* ═══════════════════════════════════════════
   TEXT UTILITIES
   ═══════════════════════════════════════════ */

.text-start { text-align: left; }
.text-center { text-align: center; }
.text-end { text-align: right; }

.text-primary { color: var(--color-primary-light) !important; }
.text-secondary { color: var(--color-text-secondary) !important; }
.text-success { color: var(--color-success-light) !important; }
.text-danger { color: var(--color-danger-light) !important; }
.text-warning { color: var(--color-warning-light) !important; }
.text-info { color: var(--color-info-light) !important; }
.text-muted { color: var(--color-text-tertiary) !important; }
.text-white { color: #fff !important; }
.text-dark { color: var(--color-text-inverse) !important; }
.text-light { color: var(--color-text-secondary) !important; }

.text-decoration-none { text-decoration: none !important; }
.text-decoration-underline { text-decoration: underline !important; }
.text-uppercase { text-transform: uppercase; }
.text-lowercase { text-transform: lowercase; }
.text-capitalize { text-transform: capitalize; }

.text-truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.text-truncate-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.text-truncate-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.text-nowrap { white-space: nowrap; }
.text-break { word-wrap: break-word; overflow-wrap: break-word; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.list-unstyled {
  list-style: none;
  padding-left: 0;
  margin: 0;
}


/* ═══════════════════════════════════════════
   BACKGROUND UTILITIES
   ═══════════════════════════════════════════ */

.bg-primary { background-color: var(--color-primary) !important; }
.bg-secondary { background-color: var(--color-secondary) !important; }
.bg-success { background-color: var(--color-success) !important; }
.bg-danger { background-color: var(--color-danger) !important; }
.bg-warning { background-color: var(--color-warning) !important; }
.bg-info { background-color: var(--color-info) !important; }
.bg-dark { background-color: var(--color-bg-elevated) !important; }
.bg-light { background-color: var(--color-bg-surface) !important; }
.bg-white { background-color: var(--color-bg-surface) !important; }
.bg-transparent { background-color: transparent !important; }
.bg-gradient { background-image: linear-gradient(180deg, rgba(255,255,255,0.08), transparent) !important; }
.bg-purple { background-color: #7c3aed !important; color: #fff; }

.bg-subtle-primary { background-color: var(--color-primary-50) !important; }
.bg-subtle-success { background-color: var(--color-success-bg) !important; }
.bg-subtle-danger { background-color: var(--color-danger-bg) !important; }
.bg-subtle-warning { background-color: var(--color-warning-bg) !important; }
.bg-subtle-info { background-color: var(--color-info-bg) !important; }
.bg-subtle-secondary { background-color: var(--color-secondary-bg) !important; }


/* ═══════════════════════════════════════════
   SIZING UTILITIES
   ═══════════════════════════════════════════ */

.w-25 { width: 25% !important; }
.w-50 { width: 50% !important; }
.w-75 { width: 75% !important; }
.w-100 { width: 100% !important; }
.w-auto { width: auto !important; }

.h-25 { height: 25% !important; }
.h-50 { height: 50% !important; }
.h-100 { height: 100% !important; }
.h-auto { height: auto !important; }

.mw-100 { max-width: 100% !important; }
.min-vh-100 { min-height: 100vh !important; }


/* ═══════════════════════════════════════════
   BORDER UTILITIES
   ═══════════════════════════════════════════ */

.border { border: 1px solid var(--color-border) !important; }
.border-0 { border: 0 !important; }
.border-top { border-top: 1px solid var(--color-border) !important; }
.border-bottom { border-bottom: 1px solid var(--color-border) !important; }
.border-top-0 { border-top: 0 !important; }
.border-bottom-0 { border-bottom: 0 !important; }

.rounded { border-radius: var(--radius-md) !important; }
.rounded-0 { border-radius: 0 !important; }
.rounded-1 { border-radius: var(--radius-sm) !important; }
.rounded-2 { border-radius: var(--radius-md) !important; }
.rounded-3 { border-radius: var(--radius-lg) !important; }
.rounded-pill { border-radius: var(--radius-full) !important; }
.rounded-circle { border-radius: 50% !important; }


/* ═══════════════════════════════════════════
   SHADOW UTILITIES
   ═══════════════════════════════════════════ */

.shadow-none { box-shadow: none !important; }
.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }


/* ═══════════════════════════════════════════
   POSITION UTILITIES
   ═══════════════════════════════════════════ */

.position-static { position: static !important; }
.position-relative { position: relative !important; }
.position-absolute { position: absolute !important; }
.position-fixed { position: fixed !important; }
.position-sticky { position: sticky !important; }

.top-0 { top: 0 !important; }
.end-0 { right: 0 !important; }
.bottom-0 { bottom: 0 !important; }
.start-0 { left: 0 !important; }

.overflow-hidden { overflow: hidden !important; }
.overflow-auto { overflow: auto !important; }
.overflow-visible { overflow: visible !important; }


/* ═══════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: var(--color-text-primary);
  background-color: transparent;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
  gap: var(--space-2);
}

.btn:hover {
  text-decoration: none;
  background-color: var(--color-bg-surface-hover);
}

.btn:active {
  transform: scale(0.98);
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn:disabled, .btn.disabled {
  opacity: 0.5;
  pointer-events: none;
}

/* Primary */
.btn-primary {
  color: #fff;
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #fff;
}

/* Secondary */
.btn-secondary {
  color: #fff;
  background-color: var(--color-secondary);
  border-color: var(--color-secondary);
}
.btn-secondary:hover {
  background-color: var(--color-secondary-dark);
  border-color: var(--color-secondary-dark);
  color: #fff;
}

/* Success */
.btn-success {
  color: #fff;
  background-color: var(--color-success);
  border-color: var(--color-success);
}
.btn-success:hover {
  background-color: var(--color-success-dark);
  border-color: var(--color-success-dark);
  color: #fff;
}

/* Danger */
.btn-danger {
  color: #fff;
  background-color: var(--color-danger);
  border-color: var(--color-danger);
}
.btn-danger:hover {
  background-color: var(--color-danger-dark);
  border-color: var(--color-danger-dark);
  color: #fff;
}

/* Warning */
.btn-warning {
  color: #000;
  background-color: var(--color-warning);
  border-color: var(--color-warning);
}
.btn-warning:hover {
  background-color: var(--color-warning-dark);
  border-color: var(--color-warning-dark);
}

/* Info */
.btn-info {
  color: #fff;
  background-color: var(--color-info);
  border-color: var(--color-info);
}
.btn-info:hover {
  background-color: var(--color-info-dark);
  border-color: var(--color-info-dark);
  color: #fff;
}

/* Dark */
.btn-dark {
  color: #fff;
  background-color: var(--color-bg-surface);
  border-color: var(--color-border-strong);
}
.btn-dark:hover {
  background-color: var(--color-bg-surface-hover);
  color: #fff;
}

/* Link */
.btn-link {
  color: var(--color-primary-light);
  background: none;
  border: none;
  padding: 0;
  text-decoration: underline;
}
.btn-link:hover { color: var(--color-primary); }

/* Outline variants */
.btn-outline-primary {
  color: var(--color-primary-light);
  border-color: var(--color-primary);
  background: transparent;
}
.btn-outline-primary:hover {
  background-color: var(--color-primary);
  color: #fff;
}

.btn-outline-secondary {
  color: var(--color-text-secondary);
  border-color: var(--color-border-strong);
  background: transparent;
}
.btn-outline-secondary:hover {
  background-color: var(--color-bg-surface);
  color: var(--color-text-primary);
}

.btn-outline-success {
  color: var(--color-success-light);
  border-color: var(--color-success);
  background: transparent;
}
.btn-outline-success:hover {
  background-color: var(--color-success);
  color: #fff;
}

.btn-outline-danger {
  color: var(--color-danger-light);
  border-color: var(--color-danger);
  background: transparent;
}
.btn-outline-danger:hover {
  background-color: var(--color-danger);
  color: #fff;
}

.btn-outline-warning {
  color: var(--color-warning-light);
  border-color: var(--color-warning);
  background: transparent;
}
.btn-outline-warning:hover {
  background-color: var(--color-warning);
  color: #000;
}

.btn-outline-info {
  color: var(--color-info-light);
  border-color: var(--color-info);
  background: transparent;
}
.btn-outline-info:hover {
  background-color: var(--color-info);
  color: #fff;
}

.btn-outline-light {
  color: var(--color-text-secondary);
  border-color: var(--color-border-strong);
  background: transparent;
}
.btn-outline-light:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-text-primary);
}

/* Sizes */
.btn-sm {
  padding: 0.25rem 0.625rem;
  font-size: var(--text-xs);
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.625rem 1.5rem;
  font-size: var(--text-md);
  border-radius: var(--radius-lg);
}

/* Button group */
.btn-group {
  display: inline-flex;
  gap: 0;
}
.btn-group > .btn { border-radius: 0; }
.btn-group > .btn:first-child { border-radius: var(--radius-md) 0 0 var(--radius-md); }
.btn-group > .btn:last-child { border-radius: 0 var(--radius-md) var(--radius-md) 0; }
.btn-group-sm > .btn { padding: 0.25rem 0.5rem; font-size: var(--text-xs); }

/* Close button */
.btn-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  padding: 0;
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}
.btn-close::before { content: '\00d7'; }
.btn-close:hover { opacity: 1; }


/* ═══════════════════════════════════════════
   CARDS
   ═══════════════════════════════════════════ */

.card {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  overflow: hidden;
}

.card:hover {
  border-color: var(--color-border-strong);
}

.card-header {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.02);
}

.card-body {
  padding: var(--space-5);
}

.card-footer {
  padding: var(--space-3) var(--space-5);
  border-top: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.02);
}

.card-title {
  font-size: var(--text-md);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-2);
  color: var(--color-text-primary);
}

.card-text {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
}

.card-link {
  color: var(--color-primary-light);
  text-decoration: none;
}
.card-link:hover { text-decoration: underline; }


/* ═══════════════════════════════════════════
   BADGES
   ═══════════════════════════════════════════ */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2em 0.6em;
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  line-height: 1;
  border-radius: var(--radius-full);
  white-space: nowrap;
  vertical-align: middle;
}

.badge.bg-primary { background-color: var(--color-primary) !important; color: #fff; }
.badge.bg-secondary { background-color: var(--color-secondary) !important; color: #fff; }
.badge.bg-success { background-color: var(--color-success) !important; color: #fff; }
.badge.bg-danger { background-color: var(--color-danger) !important; color: #fff; }
.badge.bg-warning { background-color: var(--color-warning) !important; color: #000; }
.badge.bg-info { background-color: var(--color-info) !important; color: #fff; }
.badge.bg-light { background-color: var(--color-bg-surface-hover) !important; color: var(--color-text-primary); }


/* ═══════════════════════════════════════════
   FORMS
   ═══════════════════════════════════════════ */

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
}

.form-control,
.form-select {
  display: block;
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-text-primary);
  background-color: var(--color-bg-input);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  appearance: none;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 0 0 3px var(--color-primary-50);
}

.form-control::placeholder {
  color: var(--color-text-muted);
}

.form-control:disabled,
.form-select:disabled {
  background-color: var(--color-bg-surface);
  opacity: 0.6;
  cursor: not-allowed;
}

.form-select {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%2394a3b8' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 16px 12px;
  padding-right: 2.5rem;
}

textarea.form-control {
  min-height: 5rem;
  resize: vertical;
}

.form-control-color {
  width: 3rem;
  height: calc(1.5em + 1rem + 2px);
  padding: 0.25rem;
  cursor: pointer;
}

.form-text {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}

/* Checkboxes & switches */
.form-check {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0;
  margin-bottom: var(--space-2);
}

.form-check-input {
  width: 1rem;
  height: 1rem;
  margin: 0;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-input);
  appearance: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.form-check-input:checked {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23fff' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M6 10l3 3l6-6'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 0.65rem;
}

.form-check-input[type="radio"] {
  border-radius: 50%;
}

.form-check-label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
}

.form-switch .form-check-input {
  width: 2rem;
  height: 1.1rem;
  border-radius: var(--radius-full);
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%2364748b'/%3e%3c/svg%3e");
  background-position: left center;
  background-size: contain;
}

.form-switch .form-check-input:checked {
  background-position: right center;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%23fff'/%3e%3c/svg%3e");
}

/* Validation */
.is-valid {
  border-color: var(--color-success) !important;
}
.is-invalid {
  border-color: var(--color-danger) !important;
}
.invalid-feedback {
  display: none;
  font-size: var(--text-xs);
  color: var(--color-danger-light);
  margin-top: var(--space-1);
}
.is-invalid ~ .invalid-feedback,
.was-validated :invalid ~ .invalid-feedback { display: block; }

/* Input groups */
.input-group {
  display: flex;
  width: 100%;
}

.input-group > .form-control,
.input-group > .form-select {
  flex: 1 1 auto;
  width: 1%;
}

.input-group > .form-control:not(:first-child),
.input-group > .form-select:not(:first-child) {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

.input-group > .form-control:not(:last-child),
.input-group > .form-select:not(:last-child) {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.input-group-text {
  display: flex;
  align-items: center;
  padding: 0.5rem 0.75rem;
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-strong);
  white-space: nowrap;
}

.input-group-text:first-child {
  border-right: 0;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.input-group-text:last-child {
  border-left: 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.input-group > .btn {
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.input-group > .btn:first-child {
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.needs-validation .form-control:invalid { border-color: var(--color-danger); }


/* ═══════════════════════════════════════════
   TABLES
   ═══════════════════════════════════════════ */

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.table th,
.table td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

.table th {
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--color-bg-elevated);
}

.table-hover tbody tr {
  transition: background-color var(--transition-fast);
}

.table-hover tbody tr:hover {
  background-color: var(--color-bg-surface-hover);
}

.table-striped tbody tr:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.02);
}

.table-sm th,
.table-sm td {
  padding: var(--space-2) var(--space-3);
}

.table-light,
.table-light th,
.table-light td {
  background-color: var(--color-bg-elevated);
}

.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}


/* ═══════════════════════════════════════════
   MODALS
   ═══════════════════════════════════════════ */

.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-modal);
  overflow-y: auto;
  outline: 0;
}

.modal.show { display: block; }

.modal-dialog {
  position: relative;
  width: auto;
  max-width: 500px;
  margin: 1.75rem auto;
  pointer-events: none;
}

.modal-dialog-lg,
.modal-lg { max-width: 800px; }

.modal-dialog-scrollable {
  max-height: calc(100% - 3.5rem);
}
.modal-dialog-scrollable .modal-content {
  max-height: inherit;
  overflow: hidden;
}
.modal-dialog-scrollable .modal-body {
  overflow-y: auto;
}

.modal-content {
  position: relative;
  display: flex;
  flex-direction: column;
  pointer-events: auto;
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  backdrop-filter: blur(20px);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5);
  border-bottom: 1px solid var(--color-border);
}

.modal-title {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  margin: 0;
}

.modal-body {
  padding: var(--space-5);
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-border);
}

/* Modal backdrop */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-bg-overlay);
  backdrop-filter: blur(4px);
  z-index: calc(var(--z-modal) - 1);
}

.modal-backdrop.show { opacity: 1; }


/* ═══════════════════════════════════════════
   ALERTS
   ═══════════════════════════════════════════ */

.alert {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
  border: 1px solid;
}

.alert-success {
  background-color: var(--color-success-bg);
  border-color: var(--color-success-border);
  color: var(--color-success-light);
}

.alert-danger {
  background-color: var(--color-danger-bg);
  border-color: var(--color-danger-border);
  color: var(--color-danger-light);
}

.alert-warning {
  background-color: var(--color-warning-bg);
  border-color: var(--color-warning-border);
  color: var(--color-warning-light);
}

.alert-info {
  background-color: var(--color-info-bg);
  border-color: var(--color-info-border);
  color: var(--color-info-light);
}

.alert-primary {
  background-color: var(--color-primary-50);
  border-color: var(--color-primary-100);
  color: var(--color-primary-light);
}

.alert-light {
  background-color: var(--color-bg-surface);
  border-color: var(--color-border);
  color: var(--color-text-secondary);
}

.alert-dismissible {
  padding-right: 3rem;
  position: relative;
}

.alert-dismissible .btn-close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
}

.alert-link {
  color: inherit;
  font-weight: var(--weight-semibold);
  text-decoration: underline;
}
.alert-link:hover {
  color: inherit;
  opacity: 0.8;
}


/* ═══════════════════════════════════════════
   DROPDOWNS
   ═══════════════════════════════════════════ */

.dropdown { position: relative; }

.dropdown-toggle::after {
  display: inline-block;
  margin-left: 0.35em;
  vertical-align: 0.2em;
  content: '';
  border-top: 0.3em solid;
  border-right: 0.3em solid transparent;
  border-left: 0.3em solid transparent;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: var(--z-dropdown);
  display: none;
  min-width: 12rem;
  padding: var(--space-2) 0;
  margin: var(--space-1) 0;
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(20px);
}

.dropdown-menu.show { display: block; }

.dropdown-menu-end {
  left: auto;
  right: 0;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.dropdown-item:hover {
  background-color: var(--color-bg-surface-hover);
  color: var(--color-text-primary);
  text-decoration: none;
}

.dropdown-item-text {
  display: block;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.dropdown-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-2) 0;
}

.dropdown-header {
  display: block;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}


/* ═══════════════════════════════════════════
   LIST GROUPS
   ═══════════════════════════════════════════ */

.list-group {
  display: flex;
  flex-direction: column;
}

.list-group-flush > .list-group-item {
  border-left: 0;
  border-right: 0;
  border-radius: 0;
}

.list-group-flush > .list-group-item:first-child { border-top: 0; }
.list-group-flush > .list-group-item:last-child { border-bottom: 0; }

.list-group-item {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-primary);
  background: transparent;
}

.list-group-item-action {
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.list-group-item-action:hover {
  background-color: var(--color-bg-surface-hover);
}


/* ═══════════════════════════════════════════
   NAVIGATION (for Bootstrap JS compat)
   ═══════════════════════════════════════════ */

/* These are kept minimal — the sidebar CSS handles the real nav */
.navbar { display: flex; align-items: center; padding: var(--space-3) var(--space-4); }
.navbar-brand { font-weight: var(--weight-semibold); font-size: var(--text-lg); color: var(--color-text-primary); text-decoration: none; display: flex; align-items: center; }
.navbar-brand:hover { color: var(--color-text-primary); text-decoration: none; }
.navbar-nav { display: flex; list-style: none; gap: var(--space-1); }
.nav-item { list-style: none; }
.nav-link { display: flex; align-items: center; gap: var(--space-2); padding: var(--space-2) var(--space-3); color: var(--color-text-secondary); text-decoration: none; border-radius: var(--radius-md); font-size: var(--text-sm); transition: all var(--transition-fast); }
.nav-link:hover { color: var(--color-text-primary); background-color: var(--color-bg-surface-hover); text-decoration: none; }
.nav-link.active { color: var(--color-primary-light); background-color: var(--color-primary-50); }
.navbar-dark { background-color: var(--color-bg-elevated); }
.navbar-toggler { display: none; background: none; border: 1px solid var(--color-border); color: var(--color-text-secondary); padding: var(--space-2); border-radius: var(--radius-md); cursor: pointer; }
.navbar-toggler-icon { display: block; width: 1.5em; height: 1.5em; background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%2394a3b8' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e"); background-repeat: no-repeat; background-position: center; background-size: 100%; }
.navbar-expand-lg .navbar-collapse { display: flex !important; }
.collapse:not(.show) { display: none; }
.collapse.show { display: block; }

@media (max-width: 1023px) {
  .navbar-expand-lg .navbar-toggler { display: block; }
  .navbar-expand-lg .navbar-collapse { display: none !important; flex-direction: column; width: 100%; }
  .navbar-expand-lg .navbar-collapse.show { display: flex !important; }
  .navbar-nav { flex-direction: column; width: 100%; }
}

/* Nav tabs/pills for settings pages etc */
.nav-tabs, .nav-pills {
  display: flex;
  gap: var(--space-1);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0;
  margin-bottom: var(--space-4);
}

.nav-tabs .nav-link {
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  padding: var(--space-2) var(--space-4);
}

.nav-tabs .nav-link.active {
  border-bottom-color: var(--color-primary);
  background: transparent;
}


/* ═══════════════════════════════════════════
   PAGINATION
   ═══════════════════════════════════════════ */

.pagination {
  display: flex;
  list-style: none;
  gap: var(--space-1);
  padding: 0;
}

.page-item { list-style: none; }

.page-link {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
  padding: 0 var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.page-link:hover {
  background: var(--color-bg-surface-hover);
  color: var(--color-text-primary);
}

.page-item.active .page-link {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.page-item.disabled .page-link {
  opacity: 0.5;
  pointer-events: none;
}


/* ═══════════════════════════════════════════
   BREADCRUMBS
   ═══════════════════════════════════════════ */

.breadcrumb {
  display: flex;
  list-style: none;
  gap: var(--space-2);
  padding: 0;
  margin: 0;
  font-size: var(--text-sm);
}

.breadcrumb-item { color: var(--color-text-tertiary); }
.breadcrumb-item a { color: var(--color-text-secondary); text-decoration: none; }
.breadcrumb-item a:hover { color: var(--color-primary-light); }
.breadcrumb-item + .breadcrumb-item::before { content: '/'; margin-right: var(--space-2); color: var(--color-text-muted); }
.breadcrumb-item.active { color: var(--color-text-primary); }


/* ═══════════════════════════════════════════
   SPINNERS
   ═══════════════════════════════════════════ */

.spinner-border {
  display: inline-block;
  width: 2rem;
  height: 2rem;
  border: 0.2em solid var(--color-primary-50);
  border-right-color: var(--color-primary);
  border-radius: 50%;
  animation: spinner-border 0.75s linear infinite;
}

.spinner-border-sm {
  width: 1rem;
  height: 1rem;
  border-width: 0.15em;
}

@keyframes spinner-border {
  to { transform: rotate(360deg); }
}


/* ═══════════════════════════════════════════
   FADE / SHOW TRANSITIONS (Bootstrap JS compat)
   ═══════════════════════════════════════════ */

.fade {
  opacity: 0;
  transition: opacity 0.15s linear;
}

.fade.show {
  opacity: 1;
}

.tab-content > .tab-pane { display: none; }
.tab-content > .tab-pane.active { display: block; }


/* ═══════════════════════════════════════════
   PROGRESS BARS
   ═══════════════════════════════════════════ */

.progress {
  display: flex;
  height: 1rem;
  overflow: hidden;
  font-size: var(--text-xs);
  background-color: var(--color-bg-elevated);
  border-radius: var(--radius-full);
}

.progress-bar {
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  color: #fff;
  text-align: center;
  white-space: nowrap;
  background-color: var(--color-primary);
  transition: width 0.6s ease;
}


/* ═══════════════════════════════════════════
   MISC UTILITIES
   ═══════════════════════════════════════════ */

.cursor-pointer { cursor: pointer; }
.user-select-none { user-select: none; }
.disabled { opacity: 0.5; pointer-events: none; }

img { max-width: 100%; height: auto; }

/* Screen reader only — Note: do NOT apply display:none to [aria-hidden="true"]
   because Font Awesome icons use aria-hidden="true" and must remain visible. */

/* Focus ring */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Selection color */
::selection {
  background-color: var(--color-primary-100);
  color: var(--color-text-primary);
}

/* Scrollbar styling */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--color-border-strong); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--color-text-muted); }