/* ======================================================================
   AMSQ Prices — Premium UI Design System
   Tailwind-compatible utility layer. Modern, airy, product-ready.
   ====================================================================== */

:root {
    color-scheme: light;
    --nx-bg: #f7f8fb;
    --nx-bg-soft: #eef1f7;
    --nx-panel: #ffffff;
    --nx-panel-soft: #f8fafc;
    --nx-border: #e6e8ef;
    --nx-border-strong: #d6dae4;
    --nx-text: #0f172a;
    --nx-text-soft: #334155;
    --nx-muted: #64748b;
    --nx-muted-soft: #94a3b8;

    --nx-brand: #0f172a;
    --nx-brand-contrast: #ffffff;

    --nx-primary: #4f46e5;
    --nx-primary-600: #4338ca;
    --nx-primary-50: #eef2ff;

    --nx-accent: #14b8a6;
    --nx-accent-600: #0d9488;

    --nx-warm: #f59e0b;
    --nx-danger: #dc2626;
    --nx-success: #059669;
    --nx-info: #0284c7;

    --nx-radius-sm: .5rem;
    --nx-radius: .75rem;
    --nx-radius-lg: 1rem;
    --nx-radius-xl: 1.25rem;

    --nx-shadow-xs: 0 1px 2px rgba(15, 23, 42, .06);
    --nx-shadow-sm: 0 4px 16px -2px rgba(15, 23, 42, .06), 0 2px 4px -1px rgba(15, 23, 42, .04);
    --nx-shadow:    0 12px 32px -8px rgba(15, 23, 42, .10), 0 4px 12px -4px rgba(15, 23, 42, .06);
    --nx-shadow-lg: 0 28px 64px -16px rgba(15, 23, 42, .18), 0 12px 24px -8px rgba(15, 23, 42, .08);
    --nx-shadow-glow: 0 18px 40px -16px rgba(79, 70, 229, .45);

    --nx-ring: 0 0 0 3px color-mix(in srgb, var(--nx-primary) 22%, transparent);
}

.dark,
[data-theme="dark"] {
    color-scheme: dark;
    --nx-bg: #070b18;
    --nx-bg-soft: #0d1326;
    --nx-panel: #0f1729;
    --nx-panel-soft: #131c33;
    --nx-border: #1f2a44;
    --nx-border-strong: #2a3756;
    --nx-text: #f1f5f9;
    --nx-text-soft: #cbd5e1;
    --nx-muted: #94a3b8;
    --nx-muted-soft: #64748b;

    --nx-brand: #f8fafc;
    --nx-brand-contrast: #0f172a;

    --nx-primary: #818cf8;
    --nx-primary-600: #6366f1;
    --nx-primary-50: #1e1b4b;

    --nx-accent: #2dd4bf;
    --nx-warm: #fbbf24;

    --nx-shadow-sm: 0 4px 16px -2px rgba(0, 0, 0, .35), 0 2px 4px -1px rgba(0, 0, 0, .25);
    --nx-shadow:    0 14px 36px -8px rgba(0, 0, 0, .55), 0 6px 14px -4px rgba(0, 0, 0, .35);
    --nx-shadow-lg: 0 28px 64px -16px rgba(0, 0, 0, .65), 0 12px 24px -8px rgba(0, 0, 0, .45);
    --nx-shadow-glow: 0 18px 40px -16px rgba(129, 140, 248, .55);
}

/* -- Base ------------------------------------------------------------- */
html { scroll-behavior: smooth; }
body {
    background: var(--nx-bg);
    color: var(--nx-text);
    font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-feature-settings: "cv02","cv03","cv04","cv11";
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
h1, h2, h3, h4 { letter-spacing: -0.018em; }
[x-cloak], [v-cloak] { display: none !important; }

::selection { background: color-mix(in srgb, var(--nx-primary) 30%, transparent); color: var(--nx-text); }

/* Native scrollbar polish */
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb { background: color-mix(in srgb, var(--nx-border-strong) 80%, transparent); border-radius: 999px; border: 2px solid var(--nx-bg); }
*::-webkit-scrollbar-thumb:hover { background: var(--nx-muted-soft); }

/* -- App shell -------------------------------------------------------- */
.nx-shell {
    min-height: 100vh;
    background:
        radial-gradient(60rem 32rem at 110% -10%, color-mix(in srgb, var(--nx-primary) 14%, transparent), transparent 60%),
        radial-gradient(50rem 28rem at -10% 0%, color-mix(in srgb, var(--nx-accent) 12%, transparent), transparent 60%),
        linear-gradient(180deg, color-mix(in srgb, var(--nx-panel) 60%, transparent), transparent 22rem),
        var(--nx-bg);
}

.nx-surface { background: var(--nx-panel); }
.nx-surface-soft { background: var(--nx-panel-soft); }

/* -- Cards ------------------------------------------------------------ */
.nx-card {
    border: 1px solid var(--nx-border);
    background: var(--nx-panel);
    border-radius: var(--nx-radius-lg);
    box-shadow: var(--nx-shadow-sm);
}
.nx-card-hover { transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease; }
.nx-card-hover:hover {
    border-color: color-mix(in srgb, var(--nx-primary) 38%, var(--nx-border));
    box-shadow: var(--nx-shadow);
    transform: translateY(-2px);
}
.nx-panel { border: 1px solid var(--nx-border); background: var(--nx-panel); border-radius: var(--nx-radius); }
.nx-muted { color: var(--nx-muted); }
.nx-muted-strong { color: var(--nx-text-soft); }

/* Eye-catching gradient hero card */
.nx-hero {
    position: relative;
    overflow: hidden;
    border-radius: var(--nx-radius-xl);
    border: 1px solid var(--nx-border);
    background:
        radial-gradient(40rem 18rem at 100% 0%, color-mix(in srgb, var(--nx-primary) 22%, transparent), transparent 60%),
        radial-gradient(34rem 14rem at 0% 100%, color-mix(in srgb, var(--nx-accent) 18%, transparent), transparent 60%),
        linear-gradient(135deg, var(--nx-panel), var(--nx-panel-soft));
    box-shadow: var(--nx-shadow);
}
.nx-hero::after {
    content: "";
    position: absolute; inset: 0;
    background-image: radial-gradient(rgba(15,23,42,.04) 1px, transparent 1px);
    background-size: 22px 22px;
    pointer-events: none;
    mask-image: linear-gradient(180deg, black, transparent 70%);
}

/* -- Buttons ---------------------------------------------------------- */
.nx-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    min-height: 2.5rem;
    border-radius: .625rem;
    padding: .55rem 1.05rem;
    font-size: .875rem;
    font-weight: 600;
    letter-spacing: -0.005em;
    border: 1px solid transparent;
    transition: transform .12s ease, background-color .15s ease, border-color .15s ease, opacity .15s ease, box-shadow .15s ease, color .15s ease;
    user-select: none;
    white-space: nowrap;
}
.nx-btn:hover { transform: translateY(-1px); }
.nx-btn:active { transform: translateY(0); }
.nx-btn:focus-visible { outline: none; box-shadow: var(--nx-ring); }
.nx-btn:disabled { cursor: not-allowed; opacity: .55; transform: none; box-shadow: none; }

.nx-btn-primary {
    background: linear-gradient(135deg, var(--nx-primary), var(--nx-primary-600));
    color: #fff;
    box-shadow: var(--nx-shadow-glow);
}
.nx-btn-primary:hover { filter: brightness(1.05); }

.nx-btn-accent {
    background: linear-gradient(135deg, var(--nx-accent), var(--nx-accent-600));
    color: #06211d;
}
.dark .nx-btn-accent, [data-theme="dark"] .nx-btn-accent { color: #042f2a; }

.nx-btn-dark {
    background: var(--nx-brand);
    color: var(--nx-brand-contrast);
}

.nx-btn-ghost {
    border: 1px solid var(--nx-border);
    background: var(--nx-panel);
    color: var(--nx-text);
}
.nx-btn-ghost:hover {
    background: var(--nx-panel-soft);
    border-color: var(--nx-border-strong);
}

.nx-btn-soft {
    background: color-mix(in srgb, var(--nx-primary) 10%, transparent);
    color: var(--nx-primary);
    border: 1px solid color-mix(in srgb, var(--nx-primary) 24%, transparent);
}
.nx-btn-soft:hover { background: color-mix(in srgb, var(--nx-primary) 16%, transparent); }

.nx-btn-danger {
    border: 1px solid color-mix(in srgb, var(--nx-danger) 28%, transparent);
    color: var(--nx-danger);
    background: color-mix(in srgb, var(--nx-danger) 8%, var(--nx-panel));
}
.nx-btn-danger:hover { background: color-mix(in srgb, var(--nx-danger) 14%, var(--nx-panel)); }

.nx-btn-sm { min-height: 2rem; padding: .35rem .75rem; font-size: .78rem; border-radius: .5rem; }
.nx-btn-lg { min-height: 3rem; padding: .85rem 1.5rem; font-size: .95rem; border-radius: .75rem; }

/* Icon-only button */
.nx-icon-btn {
    display: inline-grid;
    place-items: center;
    height: 2.25rem; width: 2.25rem;
    border-radius: .55rem;
    border: 1px solid var(--nx-border);
    background: var(--nx-panel);
    color: var(--nx-muted);
    transition: color .15s ease, background-color .15s ease, border-color .15s ease;
}
.nx-icon-btn:hover { color: var(--nx-text); background: var(--nx-panel-soft); border-color: var(--nx-border-strong); }

/* -- Form controls --------------------------------------------------- */
.nx-field,
.nx-select,
.nx-textarea,
input.nx-field,
select.nx-field,
textarea.nx-field {
    width: 100%;
    border: 1px solid var(--nx-border);
    background: var(--nx-panel);
    color: var(--nx-text);
    border-radius: .625rem;
    padding: .65rem .85rem;
    font-size: .875rem;
    line-height: 1.4;
    outline: none;
    transition: border-color .15s ease, box-shadow .15s ease, background-color .15s ease;
    box-shadow: 0 1px 0 rgba(15, 23, 42, .03);
}
.nx-field::placeholder { color: var(--nx-muted-soft); }

.nx-field:hover { border-color: var(--nx-border-strong); }
.nx-field:focus,
.nx-select:focus,
.nx-textarea:focus,
input:focus,
select:focus,
textarea:focus {
    border-color: var(--nx-primary) !important;
    box-shadow: var(--nx-ring);
    background: var(--nx-panel);
}

.nx-label { display: block; font-size: .78rem; font-weight: 600; color: var(--nx-text-soft); margin-bottom: .35rem; letter-spacing: .005em; }

/* -- Badges ---------------------------------------------------------- */
.nx-badge {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    border-radius: 999px;
    padding: .22rem .65rem;
    font-size: .72rem;
    font-weight: 600;
    border: 1px solid transparent;
    white-space: nowrap;
    line-height: 1.2;
}
.nx-badge::before {
    content: "";
    display: inline-block;
    width: .375rem; height: .375rem; border-radius: 999px;
    background: currentColor; opacity: .8;
}
.nx-badge-success { background: #ecfdf5; color: #047857; border-color: #a7f3d0; }
.nx-badge-warning { background: #fffbeb; color: #b45309; border-color: #fde68a; }
.nx-badge-neutral { background: #f1f5f9; color: #475569; border-color: #e2e8f0; }
.nx-badge-danger  { background: #fef2f2; color: #b91c1c; border-color: #fecaca; }
.nx-badge-info    { background: #eff6ff; color: #1d4ed8; border-color: #bfdbfe; }
.nx-badge-primary { background: #eef2ff; color: #4338ca; border-color: #c7d2fe; }
.dark .nx-badge-success, [data-theme="dark"] .nx-badge-success { background: rgba(16,185,129,.12); color:#6ee7b7; border-color: rgba(16,185,129,.32); }
.dark .nx-badge-warning, [data-theme="dark"] .nx-badge-warning { background: rgba(245,158,11,.12); color:#fcd34d; border-color: rgba(245,158,11,.32); }
.dark .nx-badge-neutral, [data-theme="dark"] .nx-badge-neutral { background: rgba(148,163,184,.10); color:#cbd5e1; border-color: rgba(148,163,184,.22); }
.dark .nx-badge-danger,  [data-theme="dark"] .nx-badge-danger  { background: rgba(220,38,38,.12);  color:#fca5a5; border-color: rgba(220,38,38,.32); }
.dark .nx-badge-info,    [data-theme="dark"] .nx-badge-info    { background: rgba(2,132,199,.12);  color:#7dd3fc; border-color: rgba(2,132,199,.32); }
.dark .nx-badge-primary, [data-theme="dark"] .nx-badge-primary { background: rgba(99,102,241,.16); color:#c7d2fe; border-color: rgba(99,102,241,.36); }

/* -- Empty / skeleton ------------------------------------------------ */
.nx-empty {
    display: grid;
    place-items: center;
    min-height: 18rem;
    padding: 2rem;
    text-align: center;
    border: 1.5px dashed var(--nx-border-strong);
    border-radius: var(--nx-radius);
    background:
        radial-gradient(20rem 10rem at 50% 0%, color-mix(in srgb, var(--nx-primary) 6%, transparent), transparent 60%),
        var(--nx-panel-soft);
}

.nx-skeleton {
    position: relative;
    overflow: hidden;
    border-radius: .5rem;
    background: color-mix(in srgb, var(--nx-border) 70%, transparent);
}
.nx-skeleton::after {
    content: "";
    position: absolute; inset: 0;
    transform: translateX(-100%);
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.42), transparent);
    animation: nx-shimmer 1.4s infinite;
}
@keyframes nx-shimmer { 100% { transform: translateX(100%); } }

/* -- Toasts ---------------------------------------------------------- */
.nx-toast-stack {
    position: fixed;
    right: 1rem; top: 1rem;
    z-index: 80;
    display: grid; gap: .75rem;
    max-width: min(24rem, calc(100vw - 2rem));
}
.nx-toast {
    border: 1px solid var(--nx-border);
    background: var(--nx-panel);
    border-radius: var(--nx-radius);
    box-shadow: var(--nx-shadow-lg);
    padding: .85rem 1rem;
    font-size: .875rem;
    animation: nx-slide-in .25s ease both;
}
@keyframes nx-slide-in { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }

.nx-help {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.15rem; height: 1.15rem;
    border-radius: 999px;
    background: var(--nx-panel-soft);
    color: var(--nx-muted);
    border: 1px solid var(--nx-border);
    font-size: .7rem;
    cursor: help;
}

/* -- Modal / Confirm ------------------------------------------------- */
.nx-confirm-backdrop {
    position: fixed; inset: 0;
    z-index: 90;
    display: grid; place-items: center;
    padding: 1rem;
    background: color-mix(in srgb, #0f172a 60%, transparent);
    backdrop-filter: blur(10px);
    animation: nx-fade .18s ease both;
}
.nx-confirm-dialog {
    width: min(28rem, 100%);
    border: 1px solid var(--nx-border);
    border-radius: var(--nx-radius-lg);
    background: var(--nx-panel);
    box-shadow: var(--nx-shadow-lg);
    padding: 1.5rem;
    animation: nx-pop .2s ease both;
}
@keyframes nx-fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes nx-pop  { from { opacity: 0; transform: scale(.96); } to { opacity: 1; transform: scale(1); } }

/* -- Tables ---------------------------------------------------------- */
.nx-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}
.nx-table thead th {
    font-size: .7rem;
    text-transform: uppercase;
    letter-spacing: .08em;
    font-weight: 600;
    color: var(--nx-muted);
    background: var(--nx-panel-soft);
    border-bottom: 1px solid var(--nx-border);
    padding: .85rem 1rem;
    text-align: left;
}
.nx-table tbody td {
    padding: .9rem 1rem;
    border-bottom: 1px solid color-mix(in srgb, var(--nx-border) 80%, transparent);
    font-size: .875rem;
    vertical-align: middle;
}
.nx-table tbody tr { transition: background-color .12s ease; }
.nx-table tbody tr:hover { background: color-mix(in srgb, var(--nx-primary) 5%, transparent); }
.nx-table tbody tr:last-child td { border-bottom: none; }

/* -- Sidebar nav ----------------------------------------------------- */
.nx-nav-section { padding: .75rem .25rem .35rem; }
.nx-nav-section-label {
    padding: 0 .65rem .4rem;
    font-size: 10.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .12em;
    color: var(--nx-muted-soft);
}

.nx-nav-item {
    position: relative;
    display: flex;
    align-items: center;
    gap: .65rem;
    padding: .45rem .65rem;
    border-radius: .55rem;
    color: var(--nx-text-soft);
    font-size: 13.5px;
    font-weight: 500;
    line-height: 1.1;
    transition: background-color .12s ease, color .12s ease;
}
.nx-nav-item .nx-nav-icon {
    display: inline-grid; place-items: center;
    width: 1.25rem; height: 1.25rem;
    color: var(--nx-muted);
    transition: color .12s ease;
    flex-shrink: 0;
}
.nx-nav-item .nx-nav-trail {
    margin-left: auto;
    font-size: 10.5px;
    font-weight: 600;
    padding: .1rem .42rem;
    border-radius: 999px;
    background: var(--nx-panel-soft);
    color: var(--nx-muted);
    border: 1px solid var(--nx-border);
}
.nx-nav-item:hover {
    background: var(--nx-panel-soft);
    color: var(--nx-text);
}
.nx-nav-item:hover .nx-nav-icon { color: var(--nx-text); }

.nx-nav-item.is-active {
    background: color-mix(in srgb, var(--nx-primary) 10%, var(--nx-panel));
    color: var(--nx-primary);
    font-weight: 600;
}
.nx-nav-item.is-active .nx-nav-icon { color: var(--nx-primary); }
.nx-nav-item.is-active::before {
    content: "";
    position: absolute;
    left: -.55rem; top: 50%;
    width: 3px; height: 60%;
    transform: translateY(-50%);
    border-radius: 0 4px 4px 0;
    background: linear-gradient(180deg, var(--nx-primary), var(--nx-primary-600));
}
.dark .nx-nav-item.is-active,
[data-theme="dark"] .nx-nav-item.is-active {
    background: color-mix(in srgb, var(--nx-primary) 18%, transparent);
    color: #c7d2fe;
}

/* -- Fade transitions used by Vue/Alpine ----------------------------- */
.fade-enter-active, .fade-leave-active { transition: opacity .18s ease, transform .18s ease; }
.fade-enter-from, .fade-leave-to { opacity: 0; transform: translateY(4px); }

/* -- Utilities ------------------------------------------------------- */
.nx-divider { height: 1px; background: var(--nx-border); border: 0; }
.nx-kbd {
    display: inline-flex; align-items: center;
    border: 1px solid var(--nx-border);
    border-bottom-width: 2px;
    background: var(--nx-panel-soft);
    border-radius: .375rem;
    padding: .05rem .4rem;
    font-size: .72rem;
    font-family: ui-monospace, "SF Mono", Menlo, Monaco, Consolas, monospace;
    color: var(--nx-text-soft);
}

@media (max-width: 768px) {
    .nx-btn:not(.nx-btn-keep) { width: 100%; }
    .nx-toast-stack { left: 1rem; right: 1rem; }
}