*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--bg-page); color: var(--text-primary); font-family: var(--font-sans); font-size: var(--text-md); line-height: 1.6; -webkit-font-smoothing: antialiased; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: var(--color-primary); text-underline-offset: 3px; }
img, svg { max-width: 100%; }
h1, h2, h3, h4, p { margin-top: 0; }
:focus-visible { outline: 3px solid rgba(37, 99, 235, .32); outline-offset: 2px; }
.skip-link { position: fixed; top: .5rem; left: .5rem; z-index: 9999; padding: .7rem 1rem; border-radius: var(--radius-md); background: var(--color-navy-950); color: white; transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
.ui-icon { width: 1.15em; height: 1.15em; flex: 0 0 auto; vertical-align: -.15em; }

.btn { min-height: 42px; display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); padding: .62rem 1rem; border: 1px solid transparent; border-radius: var(--radius-md); background: var(--color-surface-1); color: var(--text-primary); font-weight: 650; line-height: 1.2; text-decoration: none; cursor: pointer; transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast); }
.btn:hover { border-color: var(--color-border-strong); box-shadow: var(--shadow-sm); }
.btn:active { transform: translateY(1px); }
.btn:disabled, .btn[aria-disabled="true"] { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--color-primary); border-color: var(--color-primary); color: white; }
.btn-primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); color: white; }
.btn-secondary, .btn-outline, .btn-ghost { border-color: var(--color-border); background: white; color: var(--text-primary); }
.btn-danger { background: var(--color-danger); border-color: var(--color-danger); color: white; }
.btn-sm { min-height: 34px; padding: .42rem .7rem; font-size: var(--text-sm); }
.btn-lg { min-height: 48px; padding: .78rem 1.25rem; }
.btn-icon { width: 42px; padding: 0; }

.card, .panel { overflow: hidden; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--bg-card); box-shadow: var(--shadow-sm); }
.card-header, .card__header, .panel-header { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding: var(--space-5) var(--space-6); border-bottom: 1px solid var(--color-border); }
.card-body, .card__body, .panel-body { padding: var(--space-6); }
.card-title, .card__title { margin: 0; font-size: var(--text-lg); line-height: 1.35; }
.card-subtitle { margin: .25rem 0 0; color: var(--text-muted); font-size: var(--text-sm); }
.stat-card { border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: white; padding: var(--space-5); box-shadow: var(--shadow-sm); }
.stat-card__label { color: var(--text-muted); font-size: var(--text-sm); font-weight: 600; }
.stat-card__value { margin-top: .35rem; color: var(--text-primary); font-size: var(--text-2xl); font-weight: 750; line-height: 1.2; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: var(--space-4); margin-bottom: var(--space-6); }
.stat-card__header { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); }
.stat-card__number { color: var(--text-primary); font-size: var(--text-2xl); font-weight: 750; line-height: 1.2; }
.stat-card__icon { display: grid; place-items: center; width: 42px; height: 42px; border-radius: var(--radius-md); background: var(--color-blue-50); color: var(--color-primary); }

.page-header { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-6); margin-bottom: var(--space-6); }
.page-header__title, .page-title { margin: 0; color: var(--text-primary); font-size: clamp(1.35rem, 2vw, 1.75rem); line-height: 1.25; }
.page-header__description { max-width: 70ch; margin: .4rem 0 0; color: var(--text-secondary); }
.page-subtitle { max-width: 70ch; margin: .4rem 0 0; color: var(--text-secondary); }
.page-header__actions { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.section-header { display: flex; align-items: end; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-4); }
.section-header h2, .section-header h3 { margin: 0; }

.form-group { margin-bottom: var(--space-5); }
.form-label { display: block; margin-bottom: .4rem; color: var(--text-primary); font-size: var(--text-sm); font-weight: 650; }
.form-hint { margin-top: .35rem; color: var(--text-muted); font-size: var(--text-xs); }
.form-input, .form-select, .form-control, textarea.form-input { width: 100%; min-height: 44px; border: 1px solid var(--color-border-strong); border-radius: var(--radius-md); background: white; color: var(--text-primary); padding: .65rem .8rem; transition: border-color var(--transition-fast), box-shadow var(--transition-fast); }
textarea.form-input, textarea.form-control { min-height: 110px; resize: vertical; }
.form-input:focus, .form-select:focus, .form-control:focus { border-color: var(--color-primary); outline: 0; box-shadow: 0 0 0 3px var(--color-primary-glow); }
.form-input.is-invalid, .form-control.is-invalid { border-color: var(--color-danger); }
.form-error, .invalid-feedback { margin-top: .35rem; color: var(--color-danger); font-size: var(--text-sm); }
.form-check-input { width: 1rem; height: 1rem; accent-color: var(--color-primary); }

.table-wrapper, .table-responsive { width: 100%; overflow-x: auto; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: white; }
.data-table, table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td, table th, table td { padding: .8rem 1rem; border-bottom: 1px solid var(--color-border); text-align: left; vertical-align: middle; }
.data-table th, table th { background: var(--color-slate-50); color: var(--text-secondary); font-size: var(--text-xs); font-weight: 750; letter-spacing: .035em; text-transform: uppercase; white-space: nowrap; }
.data-table tbody tr:hover, table tbody tr:hover { background: var(--color-blue-50); }
.data-table tbody tr:last-child td, table tbody tr:last-child td { border-bottom: 0; }

.badge, .status-badge { display: inline-flex; align-items: center; gap: .35rem; width: fit-content; padding: .26rem .55rem; border-radius: var(--radius-full); background: var(--color-slate-100); color: var(--text-secondary); font-size: var(--text-xs); font-weight: 700; line-height: 1.35; }
.badge-success, .badge--active, .status-active, .status-paid, .status-completed, .status-provisioned { background: #ecfdf5; color: #047857; }
.badge-warning, .badge--pending, .badge--provisioning, .badge--suspended, .status-pending, .status-processing { background: #fffbeb; color: #a16207; }
.badge-danger, .badge--failed, .badge--terminated, .status-failed, .status-cancelled, .status-expired, .status-inactive { background: #fef2f2; color: #b91c1c; }
.badge__dot { width: .4rem; height: .4rem; border-radius: 50%; background: currentColor; }
.badge-info { background: var(--color-blue-50); color: var(--color-blue-700); }

.alert { display: flex; gap: var(--space-3); margin-bottom: var(--space-5); padding: .8rem 1rem; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: white; color: var(--text-secondary); }
.alert-success { border-color: #a7f3d0; background: #ecfdf5; color: #065f46; }
.alert-error, .alert-danger { border-color: #fecaca; background: #fef2f2; color: #991b1b; }
.alert-warning { border-color: #fde68a; background: #fffbeb; color: #92400e; }
.alert-info { border-color: #bfdbfe; background: var(--color-blue-50); color: #1e40af; }
.empty-state { padding: clamp(2rem, 6vw, 4rem) 1.5rem; text-align: center; }
.empty-state__icon { display: grid; place-items: center; width: 3rem; height: 3rem; margin: 0 auto 1rem; border-radius: var(--radius-lg); background: var(--color-blue-50); color: var(--color-primary); font-size: 1.4rem; }
.empty-state__title { margin-bottom: .35rem; font-size: var(--text-lg); }
.empty-state__description { max-width: 54ch; margin: 0 auto 1rem; color: var(--text-muted); }

.grid { display: grid; gap: var(--space-5); }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-5); }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-5); }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-5); }
.charts-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-5); margin-bottom: var(--space-6); }
.flex { display: flex; }.flex-col { display: flex; flex-direction: column; }.items-center { align-items: center; }.justify-between { justify-content: space-between; }.justify-center { justify-content: center; }.flex-wrap { flex-wrap: wrap; }
.gap-2 { gap: var(--space-2); }.gap-3 { gap: var(--space-3); }.gap-4 { gap: var(--space-4); }
.text-sm { font-size: var(--text-sm); }.text-xs { font-size: var(--text-xs); }.text-muted { color: var(--text-muted); }.text-primary { color: var(--color-primary); }.text-danger { color: var(--color-danger); }
.font-semibold { font-weight: 650; }.font-bold { font-weight: 750; }.mono { font-family: var(--font-mono); }
.mb-0 { margin-bottom: 0; }.mb-2 { margin-bottom: var(--space-2); }.mb-3 { margin-bottom: var(--space-3); }.mb-4 { margin-bottom: var(--space-4); }.mb-6 { margin-bottom: var(--space-6); }.mb-8 { margin-bottom: var(--space-8); }
.mt-2 { margin-top: var(--space-2); }.mt-4 { margin-top: var(--space-4); }.mt-6 { margin-top: var(--space-6); }.w-full { width: 100%; }
.animate-fade-in { animation: ui-fade-in 220ms ease both; }
.narrow-content { width: min(100%, 560px); margin-inline: auto; }
.content-720 { width: min(100%, 720px); margin-inline: auto; }
.text-center { text-align: center; }
.auth-intro { margin-bottom: var(--space-8); text-align: center; }
.auth-intro h1 { margin-bottom: .4rem; font-size: var(--text-3xl); }
.auth-intro p { margin-bottom: 0; color: var(--text-secondary); }
.dashed-panel { padding: var(--space-4); border: 1px dashed var(--color-border-strong); border-radius: var(--radius-lg); background: var(--color-slate-50); }
.progress-track { height: 6px; overflow: hidden; border-radius: var(--radius-full); background: var(--color-slate-200); }
.dialog { width: min(calc(100% - 2rem), 460px); margin: auto; padding: var(--space-6); border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: white; color: var(--text-primary); box-shadow: var(--shadow-lg); }
.dialog::backdrop { background: rgba(15, 23, 42, .55); }
.action-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: var(--space-3); }
@keyframes ui-fade-in { from { opacity: 0; transform: translateY(4px); } }
@media (max-width: 900px) { .charts-grid { grid-template-columns: 1fr; } }
@media (max-width: 800px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } .page-header { flex-direction: column; } .page-header__actions { width: 100%; } .card-header, .card__header, .card-body, .card__body { padding: var(--space-4); } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; } }