/* ══════════════════════════════════════════════════════════
   INVENTORY ERP — DESIGN SYSTEM
   Premium enterprise design tokens & utilities
   ══════════════════════════════════════════════════════════ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

/* ══════════════════════════════════════════════════════════
   CSS CUSTOM PROPERTIES (Light Mode Default)
   ══════════════════════════════════════════════════════════ */
:root {
    /* ── Primary Palette ── */
    --primary:           #6366f1;
    --primary-hover:     #4f46e5;
    --primary-light:     #a5b4fc;
    --primary-lighter:   #e0e7ff;
    --primary-rgb:       99, 102, 241;

    /* ── Accent ── */
    --accent:            #06b6d4;
    --accent-hover:      #0891b2;
    --accent-light:      #67e8f9;

    /* ── Status Colors ── */
    --success:           #10b981;
    --success-light:     #d1fae5;
    --success-dark:      #059669;
    --warning:           #f59e0b;
    --warning-light:     #fef3c7;
    --warning-dark:      #d97706;
    --danger:            #ef4444;
    --danger-light:      #fee2e2;
    --danger-dark:       #dc2626;
    --info:              #3b82f6;
    --info-light:        #dbeafe;

    /* ── Surfaces ── */
    --bg-body:           #f1f5f9;
    --bg-surface:        #ffffff;
    --bg-surface-hover:  #f8fafc;
    --bg-elevated:       #ffffff;
    --bg-muted:          #f8fafc;
    --bg-input:          #ffffff;

    /* ── Sidebar ── */
    --sidebar-bg:        #162954;
    --sidebar-bg-hover:  rgba(255, 255, 255, 0.05);
    --sidebar-text:      #94a3b8;
    --sidebar-text-active: #ffffff;
    --sidebar-accent:    #64748b;
    --sidebar-divider:   rgba(255, 255, 255, 0.06);
    --sidebar-width:     260px;
    --sidebar-collapsed: 72px;

    /* ── Topbar ── */
    --topbar-bg:         #ffffff;
    --topbar-border:     #e2e8f0;
    --topbar-height:     64px;

    /* ── Text ── */
    --text-primary:      #0f172a;
    --text-secondary:    #475569;
    --text-muted:        #94a3b8;
    --text-inverse:      #ffffff;
    --text-link:         #6366f1;

    /* ── Borders ── */
    --border-color:      #e2e8f0;
    --border-light:      #f1f5f9;
    --border-focus:      #6366f1;

    /* ── Shadows ── */
    --shadow-xs:         0 1px 2px rgba(0,0,0,0.05);
    --shadow-sm:         0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md:         0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg:         0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
    --shadow-xl:         0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.05);

    /* ── Radii ── */
    --radius-sm:         6px;
    --radius-md:         10px;
    --radius-lg:         14px;
    --radius-xl:         20px;
    --radius-full:       9999px;

    /* ── Transitions ── */
    --transition-fast:   150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base:   250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow:   350ms cubic-bezier(0.4, 0, 0.2, 1);

    /* ── Typography ── */
    --font-sans:         'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono:         'JetBrains Mono', 'Fira Code', monospace;
    --font-size-xs:      0.8125rem;  /* 13px */
    --font-size-sm:      0.875rem;   /* 14px */
    --font-size-base:    1rem;       /* 16px */
    --font-size-md:      1.125rem;   /* 18px */
    --font-size-lg:      1.25rem;    /* 20px */
    --font-size-xl:      1.375rem;   /* 22px */
    --font-size-2xl:     1.625rem;   /* 26px */
    --font-size-3xl:     2rem;       /* 32px */

    /* ── Spacing ── */
    --space-1:           0.25rem;
    --space-2:           0.5rem;
    --space-3:           0.75rem;
    --space-4:           1rem;
    --space-5:           1.25rem;
    --space-6:           1.5rem;
    --space-8:           2rem;
    --space-10:          2.5rem;
    --space-12:          3rem;
}

/* ══════════════════════════════════════════════════════════
   DARK MODE
   ══════════════════════════════════════════════════════════ */
[data-theme="dark"] {
    --bg-body:           #0c0a1d;
    --bg-surface:        #1a1740;
    --bg-surface-hover:  #231f52;
    --bg-elevated:       #1e1b4b;
    --bg-muted:          #151231;
    --bg-input:          #1e1b4b;

    --sidebar-bg:        #09090b;
    --sidebar-bg-hover:  rgba(255, 255, 255, 0.04);

    --topbar-bg:         #1a1740;
    --topbar-border:     rgba(255,255,255,0.06);

    --text-primary:      #f1f5f9;
    --text-secondary:    #94a3b8;
    --text-muted:        #64748b;

    --border-color:      rgba(255,255,255,0.08);
    --border-light:      rgba(255,255,255,0.04);

    --shadow-xs:         0 1px 2px rgba(0,0,0,0.3);
    --shadow-sm:         0 1px 3px rgba(0,0,0,0.4);
    --shadow-md:         0 4px 6px rgba(0,0,0,0.4);
    --shadow-lg:         0 10px 15px rgba(0,0,0,0.5);
    --shadow-xl:         0 20px 25px rgba(0,0,0,0.5);

    --success-light:     rgba(16, 185, 129, 0.15);
    --warning-light:     rgba(245, 158, 11, 0.15);
    --danger-light:      rgba(239, 68, 68, 0.15);
    --info-light:        rgba(59, 130, 246, 0.15);
    --primary-lighter:   rgba(99, 102, 241, 0.15);
}

/* ══════════════════════════════════════════════════════════
   GLOBAL RESET & BASE
   ══════════════════════════════════════════════════════════ */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background-color: var(--bg-body);
    line-height: 1.6;
    transition: background-color var(--transition-base), color var(--transition-base);
}

a {
    color: var(--text-link);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-hover);
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.3;
    margin-top: 0;
}

/* ── Monospace for codes/SKUs ── */
.font-mono {
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ── Selection ── */
::selection {
    background: var(--primary);
    color: #fff;
}

/* ══════════════════════════════════════════════════════════
   PREMIUM DIALOG MODALS
   ══════════════════════════════════════════════════════════ */
.premium-modal-backdrop {
    backdrop-filter: blur(8px) !important;
    background-color: rgba(15, 23, 42, 0.45) !important;
}

.premium-modal .modal-content {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--space-5);
    transition: background-color var(--transition-base), border-color var(--transition-base);
}

.premium-modal-icon-wrapper {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4) auto;
    font-size: 1.75rem;
}

.premium-modal-icon-confirm {
    background-color: var(--warning-light);
    color: var(--warning-dark);
    animation: pulse-warning-modal 2s infinite;
}

.premium-modal-icon-alert {
    background-color: var(--primary-lighter);
    color: var(--primary);
    animation: pulse-primary-modal 2s infinite;
}

@keyframes pulse-warning-modal {
    0% {
        box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.4);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(245, 158, 11, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(245, 158, 11, 0);
    }
}

@keyframes pulse-primary-modal {
    0% {
        box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(99, 102, 241, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(99, 102, 241, 0);
    }
}

.premium-modal .modal-title {
    font-weight: 700;
    font-size: var(--font-size-lg);
    color: var(--text-primary);
}

.premium-modal .modal-body {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    padding: var(--space-2) 0 var(--space-4) 0;
}

.premium-modal .modal-footer {
    border-top: none;
    padding: 0;
    display: flex;
    gap: var(--space-3);
    justify-content: center;
}

.premium-modal .btn {
    border-radius: var(--radius-md);
    padding: var(--space-2) var(--space-6);
    font-weight: 600;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.premium-modal .btn-confirm {
    background-color: var(--primary);
    color: var(--text-inverse);
    border: none;
}

.premium-modal .btn-confirm:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.25);
}

.premium-modal .btn-cancel {
    background-color: var(--bg-body);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.premium-modal .btn-cancel:hover {
    background-color: var(--bg-surface-hover);
    color: var(--text-primary);
    transform: translateY(-1px);
}

/* Custom scale animation for premium modal */
.premium-modal.fade .modal-dialog {
    transform: scale(0.95);
    transition: transform var(--transition-base);
}

.premium-modal.show .modal-dialog {
    transform: scale(1);
}