/* ==========================================================================
   PharmaCoreMax — App Design System
   Modern SaaS ERP · Single-tenant
   ========================================================================== */

:root {
    /* Brand */
    --brand-primary:        #0F766E;
    --brand-primary-hover:  #0D5F58;
    --brand-primary-soft:   #CCFBF1;
    --brand-accent:         #F59E0B;

    /* Neutrals */
    --gray-50:   #F8FAFC;
    --gray-100:  #F1F5F9;
    --gray-200:  #E2E8F0;
    --gray-300:  #CBD5E1;
    --gray-400:  #94A3B8;
    --gray-500:  #64748B;
    --gray-600:  #475569;
    --gray-700:  #334155;
    --gray-800:  #1E293B;
    --gray-900:  #0F172A;

    /* Semantic */
    --success:    #10B981;
    --warning:    #F59E0B;
    --danger:     #EF4444;
    --info:       #3B82F6;
    --success-soft:#D1FAE5;
    --warning-soft:#FEF3C7;
    --danger-soft: #FEE2E2;
    --info-soft:   #DBEAFE;

    /* Surfaces */
    --bg:         #FFFFFF;
    --bg-soft:    var(--gray-50);
    --bg-muted:   var(--gray-100);
    --surface:    #FFFFFF;
    --border:     var(--gray-200);
    --border-strong: var(--gray-300);

    /* Text */
    --ink:        var(--gray-900);
    --ink-soft:   var(--gray-700);
    --muted:      var(--gray-500);
    --inverse:    #FFFFFF;

    /* Layout */
    --sidebar-w:        260px;
    --sidebar-w-mini:   72px;
    --topbar-h:         56px;
    --content-pad:      24px;

    /* Typography */
    --font-sans:   'Manrope', 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display:'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono:   'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;

    /* Radius */
    --r-sm:  6px;
    --r-md:  8px;
    --r-lg:  12px;
    --r-xl:  16px;
    --r-2xl: 24px;
    --r-full: 9999px;

    /* Shadows */
    --shadow-sm:  0 1px 2px rgba(15,23,42,0.04);
    --shadow:     0 1px 3px rgba(15,23,42,0.08), 0 1px 2px rgba(15,23,42,0.04);
    --shadow-md:  0 4px 6px -1px rgba(15,23,42,0.08), 0 2px 4px -1px rgba(15,23,42,0.04);
    --shadow-lg:  0 10px 15px -3px rgba(15,23,42,0.1), 0 4px 6px -2px rgba(15,23,42,0.05);
    --shadow-xl:  0 20px 25px -5px rgba(15,23,42,0.1), 0 10px 10px -5px rgba(15,23,42,0.04);

    /* Transitions */
    --t-fast:  120ms;
    --t-med:   200ms;
    --t-slow:  300ms;
    --ease:    cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --bg:        #0F172A;
    --bg-soft:   #1E293B;
    --bg-muted:  #334155;
    --surface:   #1E293B;
    --border:    #334155;
    --border-strong: #475569;
    --ink:       #F8FAFC;
    --ink-soft:  #CBD5E1;
    --muted:     #94A3B8;
    --inverse:   #0F172A;
    --brand-primary-soft: #134E4A;
    --shadow:    0 1px 3px rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.4), 0 2px 4px -1px rgba(0,0,0,0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.5), 0 4px 6px -2px rgba(0,0,0,0.4);
}

/* Reset / base */
* { box-sizing: border-box; }
*::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; tab-size: 4; }
body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.5;
    color: var(--ink);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--ink);
    margin: 0 0 12px;
    letter-spacing: -0.02em;
    line-height: 1.2;
}
h1 { font-size: 28px; }
h2 { font-size: 22px; }
h3 { font-size: 18px; }
h4 { font-size: 16px; }

p { margin: 0 0 12px; color: var(--ink-soft); }
a { color: var(--brand-primary); text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--brand-primary-hover); text-decoration: underline; }

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
}

/* Inputs */
.input, .select, .textarea {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    background: var(--surface);
    color: var(--ink);
    transition: border-color var(--t-fast), box-shadow var(--t-fast);
    font-size: 14px;
}
.input:focus, .select:focus, .textarea:focus {
    outline: none;
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(15,118,110,0.12);
}
.input::placeholder { color: var(--muted); }

.label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--ink-soft);
    margin-bottom: 6px;
    letter-spacing: 0.02em;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 16px;
    border-radius: var(--r-md);
    border: 1px solid transparent;
    background: transparent;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--t-fast);
    text-decoration: none;
    line-height: 1.2;
    white-space: nowrap;
}
.btn:hover { text-decoration: none; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary {
    background: var(--brand-primary);
    color: var(--inverse);
    box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--brand-primary-hover); color: var(--inverse); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-secondary {
    background: var(--surface);
    color: var(--ink);
    border-color: var(--border);
}
.btn-secondary:hover { background: var(--bg-soft); border-color: var(--border-strong); color: var(--ink); }
.btn-ghost { background: transparent; color: var(--ink-soft); }
.btn-ghost:hover { background: var(--bg-soft); color: var(--ink); }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: #DC2626; color: white; }
.btn-block { width: 100%; justify-content: center; }
.btn-lg { padding: 12px 20px; font-size: 15px; }

/* Cards */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}
.card-body { padding: 20px; }
.card-head {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.card-head h3 { margin: 0; font-size: 15px; }

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 8px;
    border-radius: var(--r-full);
    font-size: 11px;
    font-weight: 600;
    line-height: 1.4;
    letter-spacing: 0.02em;
}
.badge-success { background: var(--success-soft); color: #047857; }
.badge-warning { background: var(--warning-soft); color: #92400E; }
.badge-danger  { background: var(--danger-soft); color: #991B1B; }
.badge-info    { background: var(--info-soft); color: #1E40AF; }
.badge-muted   { background: var(--gray-100); color: var(--gray-700); }

/* Utility */
.mono { font-family: var(--font-mono); }
.muted { color: var(--muted); }
.text-right { text-align: right; }
.text-center { text-align: center; }
.flex { display: flex; }
.flex-1 { flex: 1; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}
.table thead th {
    text-align: left;
    padding: 10px 14px;
    background: var(--bg-soft);
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    color: var(--ink-soft);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: sticky;
    top: 0;
    z-index: 1;
}
.table tbody td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
}
.table tbody tr:hover { background: var(--bg-soft); }
.table tbody tr:last-child td { border-bottom: 0; }

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: var(--r-md);
    font-size: 13px;
    margin-bottom: 16px;
    border-left: 3px solid;
}
.alert-info    { background: var(--info-soft);    color: #1E40AF; border-color: var(--info); }
.alert-success { background: var(--success-soft); color: #047857; border-color: var(--success); }
.alert-warning { background: var(--warning-soft); color: #92400E; border-color: var(--warning); }
.alert-danger  { background: var(--danger-soft);  color: #991B1B; border-color: var(--danger); }

/* Scrollbar (subtle) */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 10px; border: 2px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background: var(--gray-400); background-clip: content-box; border: 2px solid transparent; }

/* Focus visible */
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
    outline: 2px solid var(--brand-primary);
    outline-offset: 2px;
}