/* =====================================================================
   ACERS - base styles and design tokens
   ===================================================================== */

:root {
    --acers-primary: #123B66;
    --acers-primary-dark: #0C2A4A;
    --acers-blue: #1E73BE;
    --acers-gold: #D4A017;
    --acers-success: #198754;
    --acers-warning: #F59E0B;
    --acers-danger: #DC3545;
    --acers-bg: #F4F6FA;
    --acers-card: #FFFFFF;
    --acers-border: #E6EAF0;
    --acers-text: #1F2A37;
    --acers-muted: #6B7280;
    --acers-radius: 1.25rem;
    --acers-shadow: 0 6px 24px rgba(18, 59, 102, .06);

    --bs-primary: var(--acers-primary);
    --bs-primary-rgb: 18, 59, 102;
    --bs-link-color: var(--acers-blue);
    --bs-link-color-rgb: 30, 115, 190;
    --bs-link-hover-color: var(--acers-primary);
    --bs-success-rgb: 25, 135, 84;
    --bs-warning: var(--acers-warning);
    --bs-warning-rgb: 245, 158, 11;
    --bs-danger-rgb: 220, 53, 69;
    --bs-body-bg: var(--acers-bg);
    --bs-body-color: var(--acers-text);
    --bs-body-font-family: 'Poppins', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    --bs-border-color: var(--acers-border);
    --bs-border-radius: 0.6rem;
    --bs-border-radius-lg: 0.75rem;
    --bs-body-font-size: .9rem;
}

body {
    background: var(--acers-bg);
    color: var(--acers-text);
    -webkit-font-smoothing: antialiased;
}

.text-primary-dark { color: var(--acers-primary) !important; }
.text-gold { color: var(--acers-gold) !important; }

/* Buttons ------------------------------------------------------------ */
.btn-primary {
    --bs-btn-bg: var(--acers-primary);
    --bs-btn-border-color: var(--acers-primary);
    --bs-btn-hover-bg: var(--acers-primary-dark);
    --bs-btn-hover-border-color: var(--acers-primary-dark);
    --bs-btn-active-bg: var(--acers-primary-dark);
    --bs-btn-active-border-color: var(--acers-primary-dark);
    --bs-btn-disabled-bg: var(--acers-primary);
    --bs-btn-disabled-border-color: var(--acers-primary);
    --bs-btn-focus-shadow-rgb: 18, 59, 102;
}
.btn-gold {
    --bs-btn-color: #1F2A37;
    --bs-btn-bg: var(--acers-gold);
    --bs-btn-border-color: var(--acers-gold);
    --bs-btn-hover-bg: #BE8F12;
    --bs-btn-hover-border-color: #BE8F12;
    --bs-btn-hover-color: #1F2A37;
}
.btn.is-loading { pointer-events: none; }

.form-control:focus,
.form-select:focus {
    border-color: var(--acers-blue);
    box-shadow: 0 0 0 .2rem rgba(30, 115, 190, .15);
}

/* Cards -------------------------------------------------------------- */
.card-soft {
    background: var(--acers-card);
    border: 0;
    border-radius: var(--acers-radius);
    box-shadow: var(--acers-shadow);
}

/* Brand -------------------------------------------------------------- */
.brand-mark {
    display: inline-grid;
    place-items: center;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: .6rem;
    background: linear-gradient(135deg, var(--acers-gold), #F2C94C);
    color: var(--acers-primary-dark);
    font-weight: 800;
    font-size: 1.1rem;
    box-shadow: 0 4px 12px rgba(212, 160, 23, .35);
}
.brand-mark-lg { width: 3.25rem; height: 3.25rem; font-size: 1.6rem; border-radius: .85rem; }

/* Application shell -------------------------------------------------- */
:root {
    --sidebar-full: 264px;
    --sidebar-mini: 76px;
    --sidebar-bg: #FFFFFF;
    --topbar-h: 76px;
}

.app-main {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-width: 0;
}
.app-content {
    flex: 1 0 auto;
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 1.5rem;
}
.app-footer {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: .5rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--acers-border);
    color: var(--acers-muted);
    font-size: .8rem;
}

/* Sidebar (light) */
.app-sidebar { --bs-offcanvas-width: 280px; --bs-offcanvas-bg: var(--sidebar-bg); }
.sidebar-panel {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--acers-border);
    color: var(--acers-text);
}
.sidebar-brand {
    display: flex;
    align-items: center;
    gap: .5rem;
    height: var(--topbar-h);
    padding: 0 1.4rem;
    flex-shrink: 0;
}
.sidebar-brand-link {
    display: flex;
    align-items: center;
    gap: .7rem;
    min-width: 0;
    color: var(--acers-primary);
    text-decoration: none;
}
.sidebar-brand-link .brand-mark { flex-shrink: 0; }
.sidebar-brand-text { min-width: 0; line-height: 1.15; }
.sidebar-brand-text .fw-bold { font-size: 1.25rem; letter-spacing: .02em; }
.sidebar-brand-text small {
    display: block;
    margin-top: .1rem;
    font-size: .6rem;
    line-height: 1.25;
    color: var(--acers-muted);
}
.sidebar-profile {
    flex-shrink: 0;
    padding: .75rem 1.25rem 1.25rem;
    text-align: center;
}
.sidebar-profile .avatar-lg {
    display: inline-grid;
    place-items: center;
    width: 4.25rem;
    height: 4.25rem;
    margin-bottom: .6rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--acers-blue), var(--acers-primary));
    color: #fff;
    font-size: 1.35rem;
    font-weight: 600;
    box-shadow: 0 0 0 4px #fff, 0 0 0 6px rgba(30, 115, 190, .18);
}
.sidebar-profile .hello { font-size: .95rem; color: var(--acers-text); }
.sidebar-profile .hello strong { font-weight: 700; }
.sidebar-profile .role { font-size: .75rem; color: var(--acers-muted); }
.sidebar-nav {
    flex: 1 1 auto;
    overflow-y: auto;
    padding: 0 1rem 1rem;
    scrollbar-width: thin;
    scrollbar-color: #D5DBE4 transparent;
}
.sidebar-section + .sidebar-section { margin-top: .75rem; }
.sidebar-section-title {
    padding: .35rem 1rem;
    font-size: .66rem;
    font-weight: 600;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: #9AA4B2;
    white-space: nowrap;
}
.sidebar-link {
    position: relative;
    display: flex;
    align-items: center;
    gap: .85rem;
    padding: .62rem 1rem;
    margin: 2px 0;
    border-radius: 2rem;
    color: #5B6576;
    font-size: .86rem;
    text-decoration: none;
    white-space: nowrap;
    transition: background-color .15s, color .15s;
}
.sidebar-link .sidebar-label { min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.sidebar-link i { font-size: 1.1rem; width: 1.25rem; text-align: center; flex-shrink: 0; color: #8A94A6; }
.sidebar-link:hover { background: var(--acers-bg); color: var(--acers-primary); }
.sidebar-link:hover i { color: var(--acers-blue); }
.sidebar-link.active {
    background: rgba(30, 115, 190, .1);
    color: var(--acers-primary);
    font-weight: 600;
}
.sidebar-link.active i { color: var(--acers-blue); }
.sidebar-link.disabled { color: #A9B1BE; cursor: default; }
.sidebar-link.disabled i { color: #C3CAD4; }
.sidebar-link.disabled:hover { background: transparent; color: #A9B1BE; }
.sidebar-link .sidebar-soon {
    flex-shrink: 0;
    width: auto;
    margin-left: auto;
    font-size: .75rem;
    color: #C3CAD4;
}
.sidebar-footer {
    flex-shrink: 0;
    padding: 1rem 1.5rem;
    font-size: .7rem;
    color: #9AA4B2;
    white-space: nowrap;
    overflow: hidden;
}
.sidebar-backdrop { display: none; }

/* Topbar */
.topbar {
    position: sticky;
    top: 0;
    z-index: 1020;
    display: flex;
    align-items: center;
    gap: .75rem;
    height: var(--topbar-h);
    padding: 0 1.75rem;
    background: rgba(255, 255, 255, .95);
    backdrop-filter: saturate(180%) blur(8px);
    box-shadow: 0 1px 0 var(--acers-border);
}
.topbar-title { min-width: 0; line-height: 1.2; }
.topbar-title .breadcrumb { --bs-breadcrumb-divider-color: var(--acers-muted); color: var(--acers-muted); }
.topbar-search {
    position: relative;
    width: min(26rem, 100%);
}
.topbar-search .form-control {
    height: 2.75rem;
    padding: 0 3rem 0 1.4rem;
    border: 0;
    border-radius: 2rem;
    background: var(--acers-bg);
    font-size: .85rem;
}
.topbar-search .form-control:focus { background: #fff; box-shadow: 0 0 0 .2rem rgba(30, 115, 190, .15); }
.topbar-search button {
    position: absolute;
    top: 50%;
    right: .35rem;
    transform: translateY(-50%);
    width: 2.2rem;
    height: 2.2rem;
    border: 0;
    border-radius: 50%;
    background: transparent;
    color: var(--acers-muted);
}
.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    border: 0;
    border-radius: 50%;
    color: var(--acers-text);
    font-size: 1.2rem;
}
.btn-icon:hover, .btn-icon[aria-expanded="true"] { background: var(--acers-bg); }
.btn-round {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: var(--acers-bg);
    color: #5B6576;
    font-size: 1.1rem;
}
.btn-round:hover, .btn-round[aria-expanded="true"] { background: rgba(30, 115, 190, .1); color: var(--acers-primary); }
.user-menu {
    display: flex;
    align-items: center;
    gap: .6rem;
    border: 0;
    padding: .2rem;
    border-radius: 2rem;
}
.user-menu:hover, .user-menu[aria-expanded="true"] { background: var(--acers-bg); }
.user-menu::after { display: none; }
.avatar {
    display: inline-grid;
    place-items: center;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--acers-blue), var(--acers-primary));
    color: #fff;
    font-size: .85rem;
    font-weight: 600;
    flex-shrink: 0;
}

/* Notifications */
.notif-badge {
    position: absolute;
    top: -.15rem;
    right: -.15rem;
    min-width: 1.1rem;
    height: 1.1rem;
    padding: 0 .3rem;
    border-radius: 1rem;
    border: 2px solid #fff;
    background: var(--acers-danger);
    color: #fff;
    font-size: .62rem;
    font-weight: 700;
    line-height: .8rem;
    text-align: center;
}
.notif-menu { width: min(24rem, calc(100vw - 1.5rem)); overflow: hidden; }
.notif-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .85rem 1rem;
    border-bottom: 1px solid var(--acers-border);
}
.notif-list { max-height: 24rem; overflow-y: auto; }
.notif-item {
    display: flex;
    gap: .75rem;
    width: 100%;
    padding: .8rem 1rem;
    border: 0;
    border-bottom: 1px solid var(--acers-border);
    background: #fff;
    text-align: left;
    color: inherit;
    text-decoration: none;
}
.notif-item:hover { background: var(--acers-bg); }
.notif-item.is-unread { background: rgba(30, 115, 190, .05); }
.notif-item.is-unread .notif-title::after {
    content: '';
    display: inline-block;
    width: .45rem;
    height: .45rem;
    margin-left: .4rem;
    border-radius: 50%;
    background: var(--acers-blue);
    vertical-align: middle;
}
.notif-icon {
    display: inline-grid;
    place-items: center;
    flex: 0 0 2.25rem;
    height: 2.25rem;
    border-radius: .6rem;
    background: rgba(18, 59, 102, .08);
    color: var(--acers-primary);
}
.notif-title { font-weight: 600; font-size: .875rem; }
.notif-message { font-size: .8rem; color: var(--acers-muted); }
.notif-time { font-size: .72rem; color: var(--acers-muted); }
.notif-empty { padding: 2rem 1rem; text-align: center; }

/* Page heading */
.page-eyebrow {
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--acers-blue);
}

/* Status badges ------------------------------------------------------ */
.badge-status {
    font-weight: 600;
    font-size: .72rem;
    letter-spacing: .02em;
    padding: .38em .7em;
    border-radius: 1rem;
}
.status-DRAFT             { background: #EEF1F5; color: #4B5563; }
.status-UNDER_EXAMINATION { background: rgba(30, 115, 190, .12); color: #155A96; }
.status-FOR_REVIEW,
.status-RESUBMITTED       { background: rgba(245, 158, 11, .16); color: #92580A; }
.status-RETURNED          { background: rgba(220, 53, 69, .12); color: #A52834; }
.status-APPROVED          { background: rgba(25, 135, 84, .12); color: #146C43; }
.status-ARCHIVED          { background: #1F2A37; color: #fff; }

.variance-SHORTAGE { color: var(--acers-danger); }
.variance-OVERAGE  { color: #9A6F0A; }
.variance-BALANCED { color: var(--acers-success); }

/* Skeleton loading --------------------------------------------------- */
.skeleton {
    display: inline-block;
    min-height: 1em;
    border-radius: .35rem;
    background: linear-gradient(90deg, #EEF1F5 25%, #F6F8FA 50%, #EEF1F5 75%);
    background-size: 200% 100%;
    animation: skeleton 1.2s ease-in-out infinite;
    color: transparent !important;
}
@keyframes skeleton { from { background-position: 200% 0; } to { background-position: -200% 0; } }
@media (prefers-reduced-motion: reduce) { .skeleton { animation: none; } }

/* Login -------------------------------------------------------------- */
.login-shell {
    display: flex;
    min-height: 100vh;
}
.login-hero {
    flex: 1 1 55%;
    flex-direction: column;
    justify-content: space-between;
    padding: 3.5rem 4rem;
    color: #fff;
    background:
        radial-gradient(circle at 85% 15%, rgba(212, 160, 23, .22), transparent 40%),
        radial-gradient(circle at 10% 90%, rgba(30, 115, 190, .45), transparent 45%),
        linear-gradient(160deg, var(--acers-primary) 0%, var(--acers-primary-dark) 100%);
}
.login-hero-inner { max-width: 34rem; margin-top: auto; margin-bottom: auto; }
.login-features li {
    display: flex;
    align-items: center;
    gap: .9rem;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, .85);
}
.login-features i {
    display: inline-grid;
    place-items: center;
    flex: 0 0 2.5rem;
    height: 2.5rem;
    border-radius: .6rem;
    background: rgba(255, 255, 255, .1);
    color: var(--acers-gold);
    font-size: 1.15rem;
}
.login-panel {
    flex: 1 1 45%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}
.login-card {
    width: 100%;
    max-width: 26rem;
    padding: 2.5rem 2rem;
    background: var(--acers-card);
    border: 1px solid var(--acers-border);
    border-radius: 1rem;
    box-shadow: var(--acers-shadow);
}
.login-card .input-group-text { background: var(--acers-bg); color: var(--acers-muted); }

@media (max-width: 991.98px) {
    .login-panel {
        background: linear-gradient(160deg, var(--acers-primary) 0%, var(--acers-primary-dark) 100%);
    }
}
@media (max-width: 575.98px) {
    .login-card { padding: 2rem 1.25rem; }
}

/* Toasts ------------------------------------------------------------- */
.toast-container { z-index: 1090; margin-top: var(--topbar-h); }
.toast.acers-toast {
    border: 0;
    border-left: 4px solid var(--acers-blue);
    box-shadow: 0 8px 24px rgba(16, 24, 40, .15);
}
.toast.acers-toast.is-success { border-left-color: var(--acers-success); }
.toast.acers-toast.is-danger  { border-left-color: var(--acers-danger); }
.toast.acers-toast.is-warning { border-left-color: var(--acers-warning); }
.acers-toast .toast-icon { font-size: 1.15rem; }
.acers-toast.is-success .toast-icon { color: var(--acers-success); }
.acers-toast.is-danger  .toast-icon { color: var(--acers-danger); }
.acers-toast.is-warning .toast-icon { color: var(--acers-warning); }
.acers-toast.is-info    .toast-icon { color: var(--acers-blue); }

/* Error pages -------------------------------------------------------- */
.error-shell {
    display: grid;
    place-items: center;
    min-height: 100vh;
    padding: 1rem;
}
.error-icon {
    display: inline-grid;
    place-items: center;
    width: 4.5rem;
    height: 4.5rem;
    border-radius: 1rem;
    background: rgba(18, 59, 102, .08);
    color: var(--acers-primary);
    font-size: 2rem;
}

.min-w-0 { min-width: 0; }