/* ============================================
   Stock BPR — Design System
   Premium Dark Theme with Glassmorphism
   ============================================ */

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

/* ── Design Tokens ── */
:root {
    --bg-primary: #0b0f1a;
    --bg-secondary: #111827;
    --bg-tertiary: #1e293b;
    --bg-card: rgba(30, 41, 59, 0.6);
    --bg-card-solid: #1e293b;
    --bg-hover: rgba(51, 65, 85, 0.5);
    --bg-input: rgba(15, 23, 42, 0.8);
    --bg-modal: rgba(0, 0, 0, 0.7);

    --border-color: rgba(148, 163, 184, 0.1);
    --border-hover: rgba(148, 163, 184, 0.25);
    --border-focus: rgba(129, 140, 248, 0.5);

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-inverse: #0f172a;

    --accent: #818cf8;
    --accent-hover: #6366f1;
    --accent-glow: rgba(129, 140, 248, 0.25);
    --accent-secondary: #22d3ee;

    --gradient-primary: linear-gradient(135deg, #6366f1, #06b6d4);
    --gradient-warm: linear-gradient(135deg, #f59e0b, #ef4444);
    --gradient-success: linear-gradient(135deg, #10b981, #06b6d4);
    --gradient-card: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(6, 182, 212, 0.04));

    --success: #34d399;
    --success-bg: rgba(52, 211, 153, 0.12);
    --danger: #f87171;
    --danger-bg: rgba(248, 113, 113, 0.12);
    --warning: #fbbf24;
    --warning-bg: rgba(251, 191, 36, 0.12);
    --info: #60a5fa;
    --info-bg: rgba(96, 165, 250, 0.12);

    --sidebar-width: 260px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.3);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.4);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.5);
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.15);

    --transition-fast: 150ms ease;
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ── Reset ── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 15px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--text-muted); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

/* ============================================
   LOGIN PAGE
   ============================================ */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.login-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.login-bg .blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 20s ease-in-out infinite;
}

.login-bg .blob:nth-child(1) {
    width: 500px; height: 500px;
    background: #6366f1;
    top: -100px; left: -100px;
    animation-delay: 0s;
}

.login-bg .blob:nth-child(2) {
    width: 400px; height: 400px;
    background: #06b6d4;
    bottom: -80px; right: -80px;
    animation-delay: -7s;
}

.login-bg .blob:nth-child(3) {
    width: 300px; height: 300px;
    background: #8b5cf6;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -40px) scale(1.05); }
    50% { transform: translate(-20px, 30px) scale(0.95); }
    75% { transform: translate(40px, 20px) scale(1.02); }
}

.login-card {
    position: relative;
    z-index: 1;
    background: rgba(17, 24, 39, 0.7);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 3rem;
    width: 100%;
    max-width: 420px;
    margin: 1rem;
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    animation: slideUp 0.6s var(--transition-slow) both;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.login-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo .icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 1rem;
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.3);
}

.login-logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-logo p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.3rem;
}

.login-error {
    background: var(--danger-bg);
    border: 1px solid rgba(248, 113, 113, 0.3);
    color: var(--danger);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    margin-bottom: 1rem;
    display: none;
    animation: shake 0.4s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-8px); }
    75% { transform: translateX(8px); }
}

.login-error.show { display: block; }

/* ============================================
   FORMS
   ============================================ */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: all var(--transition-base);
    outline: none;
}

.form-control:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-control::placeholder {
    color: var(--text-muted);
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-inline {
    display: flex;
    gap: 0.75rem;
    align-items: flex-end;
}

.form-inline .form-group {
    flex: 1;
    margin-bottom: 0;
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
}

.btn:active { transform: scale(0.97); }

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--border-hover);
}

.btn-danger {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(248, 113, 113, 0.2);
}

.btn-danger:hover {
    background: rgba(248, 113, 113, 0.2);
}

.btn-success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(52, 211, 153, 0.2);
}

.btn-success:hover {
    background: rgba(52, 211, 153, 0.2);
}

.btn-sm {
    padding: 0.45rem 0.9rem;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
}

/* ============================================
   APP LAYOUT
   ============================================ */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* ── Sidebar ── */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform var(--transition-slow);
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sidebar-brand .brand-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.sidebar-brand h2 {
    font-size: 1.15rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-brand small {
    display: block;
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 400;
    -webkit-text-fill-color: var(--text-muted);
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-base);
    cursor: pointer;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: var(--gradient-primary);
    border-radius: 0 3px 3px 0;
    transition: height var(--transition-base);
}

.nav-link:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-link.active {
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent);
}

.nav-link.active::before {
    height: 60%;
}

.nav-link .nav-icon {
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
    flex-shrink: 0;
}

.sidebar-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border-color);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

.user-info .user-details {
    overflow: hidden;
}

.user-info .user-name {
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-info .user-role {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-logout {
    width: 100%;
    padding: 0.6rem;
    font-size: 0.8rem;
    background: rgba(248, 113, 113, 0.08);
    color: var(--danger);
    border: 1px solid rgba(248, 113, 113, 0.15);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: var(--font-sans);
    font-weight: 500;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
}

.btn-logout:hover {
    background: rgba(248, 113, 113, 0.15);
}

/* ── Main Content ── */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    padding: 2rem;
}

/* ── Page Header ── */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.page-header h1 .page-icon {
    font-size: 1.5rem;
}

.page-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

/* ── Mobile Navigation ── */
.mobile-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--border-color);
    z-index: 100;
    padding: 0.5rem;
}

.mobile-nav-items {
    display: flex;
    justify-content: space-around;
    list-style: none;
}

.mobile-nav-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
    padding: 0.5rem 0.75rem;
    color: var(--text-muted);
    font-size: 0.65rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.mobile-nav-link .mob-icon {
    font-size: 1.3rem;
}

.mobile-nav-link.active {
    color: var(--accent);
    background: rgba(99, 102, 241, 0.1);
}

.mobile-nav-link:hover {
    color: var(--text-primary);
}

/* ============================================
   CARDS
   ============================================ */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    transition: all var(--transition-base);
}

.card:hover {
    border-color: var(--border-hover);
}

.card-title {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-value {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 0.25rem;
}

.card-subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ── Stat Cards Grid ── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.stat-card.sales::before { background: var(--gradient-primary); }
.stat-card.expenses::before { background: var(--gradient-warm); }
.stat-card.profit::before { background: var(--gradient-success); }
.stat-card.stock::before { background: linear-gradient(135deg, #8b5cf6, #ec4899); }

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-hover);
}

.stat-card .stat-icon {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.stat-card .stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-card .stat-value {
    font-size: 1.8rem;
    font-weight: 800;
    margin: 0.25rem 0;
    line-height: 1.2;
}

.stat-card .stat-sub {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.stat-card.sales .stat-value { color: var(--accent); }
.stat-card.expenses .stat-value { color: var(--warning); }
.stat-card.profit .stat-value.positive { color: var(--success); }
.stat-card.profit .stat-value.negative { color: var(--danger); }
.stat-card.stock .stat-value { color: #c084fc; }

/* ============================================
   TABLES
   ============================================ */
.table-container {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.table-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 0.75rem;
}

.table-header h3 {
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.table-filters {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

.table-filters .form-control {
    padding: 0.5rem 0.85rem;
    font-size: 0.85rem;
    min-width: 180px;
}

.table-scroll {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead th {
    padding: 0.85rem 1.25rem;
    text-align: left;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
    position: sticky;
    top: 0;
    background: var(--bg-card-solid);
}

tbody tr {
    transition: background var(--transition-fast);
    border-bottom: 1px solid rgba(148, 163, 184, 0.05);
}

tbody tr:hover {
    background: var(--bg-hover);
}

tbody td {
    padding: 0.85rem 1.25rem;
    font-size: 0.9rem;
    vertical-align: middle;
    white-space: nowrap;
}

.table-empty {
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--text-muted);
}

.table-empty .empty-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
    opacity: 0.5;
}

.table-empty p {
    font-size: 0.95rem;
}

/* ── Low Stock Highlight ── */
tr.low-stock {
    background: var(--danger-bg) !important;
}

tr.low-stock td {
    color: var(--danger);
}

/* ============================================
   BADGES
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.25rem 0.65rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1.4;
}

.badge-success { background: var(--success-bg); color: var(--success); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-info { background: var(--info-bg); color: var(--info); }
.badge-neutral { background: var(--bg-hover); color: var(--text-secondary); }

/* ============================================
   MODAL
   ============================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-modal);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition-base);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: var(--radius-sm);
    font-size: 1.2rem;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
}

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */
.toast-container {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    pointer-events: none;
}

.toast {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    min-width: 300px;
    max-width: 420px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    pointer-events: auto;
    animation: toastIn 0.4s cubic-bezier(0.4, 0, 0.2, 1) both;
}

.toast.removing {
    animation: toastOut 0.3s ease forwards;
}

@keyframes toastIn {
    from { opacity: 0; transform: translateX(100px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
    to { opacity: 0; transform: translateX(100px); }
}

.toast-icon { font-size: 1.3rem; flex-shrink: 0; }
.toast-message { font-size: 0.9rem; flex: 1; }
.toast.success { border-left: 3px solid var(--success); }
.toast.success .toast-icon { color: var(--success); }
.toast.error { border-left: 3px solid var(--danger); }
.toast.error .toast-icon { color: var(--danger); }
.toast.warning { border-left: 3px solid var(--warning); }
.toast.warning .toast-icon { color: var(--warning); }

/* ============================================
   SALES PAGE — CART
   ============================================ */
.sales-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 1.5rem;
    align-items: start;
}

.cart-panel {
    position: sticky;
    top: 2rem;
}

.cart-items {
    max-height: 350px;
    overflow-y: auto;
    margin-bottom: 1rem;
}

.cart-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.cart-item:last-child { border-bottom: none; }

.cart-item-info {
    flex: 1;
    min-width: 0;
}

.cart-item-name {
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cart-item-detail {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.cart-item-price {
    font-weight: 600;
    color: var(--accent);
    margin: 0 0.75rem;
    white-space: nowrap;
}

.cart-item-remove {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 0.25rem;
    transition: color var(--transition-fast);
}

.cart-item-remove:hover { color: var(--danger); }

.cart-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-top: 2px solid var(--border-color);
    margin-top: 0.5rem;
}

.cart-total-label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.cart-total-value {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cart-empty {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--text-muted);
}

.cart-empty .empty-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    opacity: 0.4;
}

/* ============================================
   DASHBOARD SECTIONS
   ============================================ */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.section-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.section-card .section-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-card .section-body {
    padding: 1rem 1.25rem;
}

.low-stock-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.65rem 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.05);
}

.low-stock-item:last-child { border-bottom: none; }

.low-stock-item .item-name {
    font-size: 0.9rem;
    font-weight: 500;
}

.low-stock-item .item-category {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.top-product-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.65rem 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.05);
}

.top-product-item:last-child { border-bottom: none; }

.recent-sale-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.65rem 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.05);
}

.recent-sale-item:last-child { border-bottom: none; }

.recent-sale-item .sale-user {
    font-size: 0.85rem;
    font-weight: 500;
}

.recent-sale-item .sale-time {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.recent-sale-item .sale-amount {
    font-weight: 600;
    color: var(--success);
}

/* ============================================
   PRODUCT ADD QUICK FORM
   ============================================ */
.quick-add-form {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    animation: slideDown 0.3s ease both;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.quick-add-form h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.quick-add-grid {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1fr 1fr 1fr auto;
    gap: 0.75rem;
    align-items: end;
}

/* ============================================
   CONFIRM DIALOG
   ============================================ */
.confirm-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    text-align: center;
    padding: 0.5rem 0;
}

.confirm-text strong {
    color: var(--text-primary);
}

/* ============================================
   LOADING SPINNER
   ============================================ */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
}

.spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .sales-layout {
        grid-template-columns: 1fr;
    }

    .cart-panel {
        position: static;
    }

    .quick-add-grid {
        grid-template-columns: 1fr 1fr;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .mobile-nav {
        display: block;
    }

    .main-content {
        margin-left: 0;
        padding: 1.25rem;
        padding-bottom: 5rem;
    }

    .page-header h1 {
        font-size: 1.35rem;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 0.75rem;
    }

    .stat-card .stat-value {
        font-size: 1.4rem;
    }

    .quick-add-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .table-filters {
        width: 100%;
    }

    .table-filters .form-control {
        min-width: unset;
        width: 100%;
    }

    .toast-container {
        top: auto;
        bottom: 5rem;
        left: 1rem;
        right: 1rem;
    }

    .toast {
        min-width: unset;
        width: 100%;
    }

    .modal {
        margin: 0.5rem;
    }
}

@media (max-width: 480px) {
    html { font-size: 14px; }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .login-card {
        padding: 2rem 1.5rem;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .page-actions {
        width: 100%;
    }

    .page-actions .btn {
        flex: 1;
    }
}

/* ============================================
   MISC UTILITIES
   ============================================ */
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.font-bold { font-weight: 700; }
.font-mono { font-family: 'JetBrains Mono', monospace; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.hidden { display: none !important; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-sm { gap: 0.5rem; }