/* ============================================================
   BASE GRID & STRUCTURAL UTILITIES
   ============================================================ */

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

/* Display Utilities */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-inline-block { display: inline-block !important; }
.d-flex { display: flex !important; }
.d-inline-flex { display: inline-flex !important; }

/* Flexbox Utilities */
.flex-row { flex-direction: row !important; }
.flex-column { flex-direction: column !important; }
.flex-wrap { flex-wrap: wrap !important; }
.flex-nowrap { flex-wrap: nowrap !important; }
.flex-grow-1 { flex-grow: 1 !important; }
.flex-shrink-0 { flex-shrink: 0 !important; }

.justify-content-start { justify-content: flex-start !important; }
.justify-content-end { justify-content: flex-end !important; }
.justify-content-center { justify-content: center !important; }
.justify-content-between { justify-content: space-between !important; }

.align-items-start { align-items: flex-start !important; }
.align-items-end { align-items: flex-end !important; }
.align-items-center { align-items: center !important; }
.align-items-stretch { align-items: stretch !important; }

/* Spacing Utilities (Mapped directly to Theme Tokens) */
.m-0 { margin: 0 !important; }
.m-1 { margin: var(--sp-4) !important; }
.m-2 { margin: var(--sp-8) !important; }
.m-3 { margin: var(--sp-16) !important; }
.m-4 { margin: var(--sp-24) !important; }
.m-5 { margin: var(--sp-48) !important; }
.m-auto { margin: auto !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: var(--sp-4) !important; }
.mt-2 { margin-top: var(--sp-8) !important; }
.mt-3 { margin-top: var(--sp-16) !important; }
.mt-4 { margin-top: var(--sp-24) !important; }
.mt-5 { margin-top: var(--sp-48) !important; }
.mt-auto { margin-top: auto !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: var(--sp-4) !important; }
.mb-2 { margin-bottom: var(--sp-8) !important; }
.mb-3 { margin-bottom: var(--sp-16) !important; }
.mb-4 { margin-bottom: var(--sp-24) !important; }
.mb-5 { margin-bottom: var(--sp-48) !important; }
.mb-auto { margin-bottom: auto !important; }

.ms-0 { margin-left: 0 !important; }
.ms-1 { margin-left: var(--sp-4) !important; }
.ms-2 { margin-left: var(--sp-8) !important; }
.ms-3 { margin-left: var(--sp-16) !important; }
.ms-4 { margin-left: var(--sp-24) !important; }
.ms-5 { margin-left: var(--sp-48) !important; }
.ms-auto { margin-left: auto !important; }

.me-0 { margin-right: 0 !important; }
.me-1 { margin-right: var(--sp-4) !important; }
.me-2 { margin-right: var(--sp-8) !important; }
.me-3 { margin-right: var(--sp-16) !important; }
.me-4 { margin-right: var(--sp-24) !important; }
.me-5 { margin-right: var(--sp-48) !important; }
.me-auto { margin-right: auto !important; }

.p-0 { padding: 0 !important; }
.p-1 { padding: var(--sp-4) !important; }
.p-2 { padding: var(--sp-8) !important; }
.p-3 { padding: var(--sp-16) !important; }
.p-4 { padding: var(--sp-24) !important; }
.p-5 { padding: var(--sp-48) !important; }

.pt-0 { padding-top: 0 !important; }
.pt-1 { padding-top: var(--sp-4) !important; }
.pt-2 { padding-top: var(--sp-8) !important; }
.pt-3 { padding-top: var(--sp-16) !important; }
.pt-4 { padding-top: var(--sp-24) !important; }
.pt-5 { padding-top: var(--sp-48) !important; }

.pb-0 { padding-bottom: 0 !important; }
.pb-1 { padding-bottom: var(--sp-4) !important; }
.pb-2 { padding-bottom: var(--sp-8) !important; }
.pb-3 { padding-bottom: var(--sp-16) !important; }
.pb-4 { padding-bottom: var(--sp-24) !important; }
.pb-5 { padding-bottom: var(--sp-48) !important; }

.px-0 { padding-left: 0 !important; padding-right: 0 !important; }
.px-1 { padding-left: var(--sp-4) !important; padding-right: var(--sp-4) !important; }
.px-2 { padding-left: var(--sp-8) !important; padding-right: var(--sp-8) !important; }
.px-3 { padding-left: var(--sp-16) !important; padding-right: var(--sp-16) !important; }
.px-4 { padding-left: var(--sp-24) !important; padding-right: var(--sp-24) !important; }
.px-5 { padding-left: var(--sp-48) !important; padding-right: var(--sp-48) !important; }

.py-0 { padding-top: 0 !important; padding-bottom: 0 !important; }
.py-1 { padding-top: var(--sp-4) !important; padding-bottom: var(--sp-4) !important; }
.py-2 { padding-top: var(--sp-8) !important; padding-bottom: var(--sp-8) !important; }
.py-3 { padding-top: var(--sp-16) !important; padding-bottom: var(--sp-16) !important; }
.py-4 { padding-top: var(--sp-24) !important; padding-bottom: var(--sp-24) !important; }
.py-5 { padding-top: var(--sp-48) !important; padding-bottom: var(--sp-48) !important; }

.gap-0 { gap: 0 !important; }
.gap-1 { gap: var(--sp-4) !important; }
.gap-2 { gap: var(--sp-8) !important; }
.gap-3 { gap: var(--sp-16) !important; }
.gap-4 { gap: var(--sp-24) !important; }
.gap-5 { gap: var(--sp-48) !important; }

/* Sizing Utilities */
.w-100 { width: 100% !important; }
.h-100 { height: 100% !important; }
.mw-100 { max-width: 100% !important; }
.w-auto { width: auto !important; }

/* Typography Utilities */
.text-center { text-align: center !important; }
.text-start { text-align: left !important; }
.text-end { text-align: right !important; }
.text-truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.text-capitalize { text-transform: capitalize !important; }
.text-uppercase { text-transform: uppercase !important; }

.fw-bold { font-weight: 700 !important; }
.fw-semibold { font-weight: 600 !important; }
.fw-medium { font-weight: 500 !important; }
.fw-normal { font-weight: 400 !important; }

.fs-1 { font-size: var(--text-28) !important; }
.fs-2 { font-size: var(--text-22) !important; }
.fs-3 { font-size: var(--text-18) !important; }
.fs-4 { font-size: var(--text-16) !important; }
.fs-5 { font-size: var(--text-14) !important; }
.fs-6 { font-size: var(--text-12) !important; }

/* Grid System (Gutters & Columns) */
.g-0 { --grid-gx: 0; --grid-gy: 0; }
.g-1 { --grid-gx: var(--sp-4); --grid-gy: var(--sp-4); }
.g-2 { --grid-gx: var(--sp-8); --grid-gy: var(--sp-8); }
.g-3 { --grid-gx: var(--sp-16); --grid-gy: var(--sp-16); }
.g-4 { --grid-gx: var(--sp-24); --grid-gy: var(--sp-24); }
.g-5 { --grid-gx: var(--sp-48); --grid-gy: var(--sp-48); }

.container, .container-fluid { width: 100%; padding-right: var(--sp-16); padding-left: var(--sp-16); margin-right: auto; margin-left: auto; }
.row {
    display: flex;
    flex-wrap: wrap;
    margin-right: calc(var(--grid-gx, var(--sp-16)) * -0.5);
    margin-left: calc(var(--grid-gx, var(--sp-16)) * -0.5);
    margin-top: calc(var(--grid-gy, var(--sp-16)) * -1);
}
.row > * {
    flex-shrink: 0;
    width: 100%;
    max-width: 100%;
    padding-right: calc(var(--grid-gx, var(--sp-16)) * 0.5);
    padding-left: calc(var(--grid-gx, var(--sp-16)) * 0.5);
    margin-top: var(--grid-gy, var(--sp-16));
}

.col { flex: 1 0 0%; }
.col-auto { flex: 0 0 auto; width: auto; }
.col-1 { flex: 0 0 auto; width: 8.33333333%; }
.col-2 { flex: 0 0 auto; width: 16.66666667%; }
.col-3 { flex: 0 0 auto; width: 25%; }
.col-4 { flex: 0 0 auto; width: 33.33333333%; }
.col-5 { flex: 0 0 auto; width: 41.66666667%; }
.col-6 { flex: 0 0 auto; width: 50%; }
.col-7 { flex: 0 0 auto; width: 58.33333333%; }
.col-8 { flex: 0 0 auto; width: 66.66666667%; }
.col-9 { flex: 0 0 auto; width: 75%; }
.col-10 { flex: 0 0 auto; width: 83.33333333%; }
.col-11 { flex: 0 0 auto; width: 91.66666667%; }
.col-12 { flex: 0 0 auto; width: 100%; }

/* Responsive Breakpoints */
@media (min-width: 576px) {
    .d-sm-none { display: none !important; }
    .d-sm-block { display: block !important; }
    .d-sm-flex { display: flex !important; }
    .d-sm-inline-flex { display: inline-flex !important; }
    .col-sm-3 { flex: 0 0 auto; width: 25%; }
    .col-sm-4 { flex: 0 0 auto; width: 33.33333333%; }
    .col-sm-6 { flex: 0 0 auto; width: 50%; }
    .col-sm-8 { flex: 0 0 auto; width: 66.66666667%; }
    .col-sm-9 { flex: 0 0 auto; width: 75%; }
    .col-sm-12 { flex: 0 0 auto; width: 100%; }
}
@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-flex { display: inline-flex !important; }
    .col-md-3 { flex: 0 0 auto; width: 25%; }
    .col-md-4 { flex: 0 0 auto; width: 33.33333333%; }
    .col-md-6 { flex: 0 0 auto; width: 50%; }
    .col-md-8 { flex: 0 0 auto; width: 66.66666667%; }
    .col-md-9 { flex: 0 0 auto; width: 75%; }
    .col-md-12 { flex: 0 0 auto; width: 100%; }
}
@media (min-width: 992px) {
    .d-lg-none { display: none !important; }
    .d-lg-block { display: block !important; }
    .d-lg-flex { display: flex !important; }
    .d-lg-inline-flex { display: inline-flex !important; }
    .col-lg-3 { flex: 0 0 auto; width: 25%; }
    .col-lg-4 { flex: 0 0 auto; width: 33.33333333%; }
    .col-lg-6 { flex: 0 0 auto; width: 50%; }
    .col-lg-8 { flex: 0 0 auto; width: 66.66666667%; }
    .col-lg-9 { flex: 0 0 auto; width: 75%; }
    .col-lg-12 { flex: 0 0 auto; width: 100%; }
}

/* Structural Components */

/* Dropdown */
.dropdown { position: relative; }
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: var(--z-dropdown);
    min-width: 200px;
    margin: 0;
}
.dropdown-menu-end { right: 0; left: auto; }

/* Offcanvas */
.offcanvas {
    position: fixed;
    bottom: 0;
    z-index: 1045;
    display: flex;
    flex-direction: column;
    max-width: 100%;
    visibility: hidden;
    transition: transform 0.3s ease-in-out, visibility 0.3s ease-in-out;
}
.offcanvas-start {
    top: 0;
    left: 0;
    width: 280px;
    transform: translateX(-100%);
}
.offcanvas.show {
    visibility: visible;
    transform: translateX(0);
}
.offcanvas-body {
    flex-grow: 1;
    overflow-y: auto;
}
.offcanvas-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1040;
    background-color: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(2px);
}
[data-theme="dark"] .offcanvas-backdrop {
    background-color: rgba(0, 0, 0, 0.6);
}

/* Misc Utilities */
.border-0 { border: 0 !important; }
.border-top { border-top: 1px solid var(--line) !important; }
.border-bottom { border-bottom: 1px solid var(--line) !important; }
.shadow-none { box-shadow: none !important; }
.position-relative { position: relative !important; }
.position-absolute { position: absolute !important; }
.position-fixed { position: fixed !important; }
.overflow-hidden { overflow: hidden !important; }

@keyframes fa-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
.fa-spin { animation: fa-spin 1s linear infinite; }