/* ==========================================================================
   COBROPRO 2026 DESIGN SYSTEM - ULTRA-MODERN & INNOVATIVE UI
   ========================================================================== */

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

:root {
    /* Brand & Accent Palette */
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: #eef2ff;
    --primary-gradient: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
    --secondary-gradient: linear-gradient(135deg, #0ea5e9 0%, #2563eb 100%);
    --success-gradient: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --warning-gradient: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --danger-gradient: linear-gradient(135deg, #f43f5e 0%, #e11d48 100%);
    --dark-gradient: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);

    /* Dark Modern Surface & Text */
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --bg-sidebar: #0f172a;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --border-color: #e2e8f0;
    --border-card: rgba(226, 232, 240, 0.8);

    /* Shadows & Glows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 25px -3px rgba(15, 23, 42, 0.06), 0 4px 6px -4px rgba(15, 23, 42, 0.03);
    --shadow-xl: 0 20px 30px -10px rgba(15, 23, 42, 0.08), 0 10px 10px -5px rgba(15, 23, 42, 0.04);
    --primary-glow: 0 8px 20px -4px rgba(99, 102, 241, 0.35);

    /* Radii */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 24px;
    --radius-pill: 9999px;
}

/* Base Reset */
body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    letter-spacing: -0.01em;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6, .font-heading {
    font-family: 'Outfit', 'Plus Jakarta Sans', sans-serif;
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* Layout Wrapper */
#wrapper {
    overflow-x: hidden;
    min-height: 100vh;
}

/* 2026 Sleek Sidebar */
#sidebar-wrapper {
    min-height: 100vh;
    width: 270px;
    background: var(--bg-sidebar);
    color: #f8fafc;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.15);
    z-index: 1000;
}

.sidebar-brand {
    padding: 1.75rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-brand-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1.25rem;
    box-shadow: var(--primary-glow);
}

.sidebar-subbrand {
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #cbd5e1;
    font-weight: 600;
}

.sidebar-nav {
    padding: 1.25rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.sidebar-section-header {
    padding: 1rem 0.85rem 0.4rem 0.85rem;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #e2e8f0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar-section-header::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(255, 255, 255, 0.08);
}

.sidebar-nav-item {
    display: flex;
    align-items: center;
    padding: 0.85rem 1rem;
    color: #cbd5e1;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.sidebar-nav-item i {
    width: 24px;
    font-size: 1.1rem;
    margin-right: 0.75rem;
    transition: transform 0.2s ease;
}

.sidebar-nav-item:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.06);
    transform: translateX(4px);
}

.sidebar-nav-item:hover i {
    transform: scale(1.15);
    color: #a5b4fc;
}

.sidebar-nav-item.active-menu {
    color: #ffffff;
    background: var(--primary-gradient);
    font-weight: 600;
    box-shadow: var(--primary-glow);
}

.sidebar-nav-item.active-menu i {
    color: #ffffff;
}

/* Page Content Wrapper */
#page-content-wrapper {
    min-width: 100vw;
    background: var(--bg-main);
    display: flex;
    flex-direction: column;
}

@media (min-width: 768px) {
    #sidebar-wrapper {
        margin-left: 0;
    }
    #page-content-wrapper {
        min-width: 0;
        width: calc(100% - 270px);
    }
    #wrapper.toggled #sidebar-wrapper {
        margin-left: -270px;
    }
    #wrapper.toggled #page-content-wrapper {
        width: 100%;
    }
}

@media (max-width: 767.98px) {
    #sidebar-wrapper {
        margin-left: -270px;
        position: fixed;
    }
    #wrapper.toggled #sidebar-wrapper {
        margin-left: 0;
    }
}

/* Top Navbar */
.top-navbar {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-card);
    padding: 0.85rem 1.75rem;
    position: sticky;
    top: 0;
    z-index: 990;
}

.user-avatar-pill {
    background: #f1f5f9;
    border: 1px solid var(--border-color);
    padding: 0.35rem 0.85rem 0.35rem 0.45rem;
    border-radius: var(--radius-pill);
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.user-avatar-circle {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary-gradient);
    color: white;
    font-weight: 700;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 6px rgba(99, 102, 241, 0.4);
}

/* Modern 2026 Cards */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-card);
    box-shadow: var(--shadow-md);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--shadow-lg);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--border-card);
    padding: 1.25rem 1.5rem;
}

.card-body {
    padding: 1.5rem;
}

/* 2026 Floating Metric Cards */
.stat-card {
    position: relative;
    border-radius: var(--radius-lg);
    background: #ffffff;
    border: 1px solid var(--border-card);
    padding: 1.5rem;
    transition: all 0.25s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-icon-wrapper {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
}

.stat-icon-primary { background: #eef2ff; color: #4f46e5; }
.stat-icon-success { background: #ecfdf5; color: #10b981; }
.stat-icon-warning { background: #fffbeb; color: #f59e0b; }
.stat-icon-danger  { background: #fff1f2; color: #f43f5e; }

.stat-trend {
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.2rem 0.55rem;
    border-radius: var(--radius-pill);
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.stat-trend-up { background: #ecfdf5; color: #059669; }
.stat-trend-neutral { background: #f1f5f9; color: #64748b; }

/* Modern Tables */
.table-card {
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-card);
    background: #ffffff;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table {
    margin-bottom: 0;
}

.table thead th {
    background: #f8fafc;
    color: #64748b;
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.table tbody td {
    padding: 1.1rem 1.25rem;
    vertical-align: middle;
    color: #334155;
    border-bottom: 1px solid var(--border-card);
    font-size: 0.92rem;
}

.table tbody tr {
    transition: background 0.15s ease;
}

.table tbody tr:hover {
    background: #f8fafc;
}

/* Badges with Indicator Dots */
.badge-modern {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.85rem;
    font-size: 0.82rem;
    font-weight: 600;
    border-radius: var(--radius-pill);
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    display: inline-block;
}

.badge-paid {
    background: #ecfdf5;
    color: #059669;
    border: 1px solid rgba(16, 185, 129, 0.2);
}
.badge-paid .badge-dot { background: #10b981; box-shadow: 0 0 6px #10b981; }

.badge-pending {
    background: #fffbeb;
    color: #d97706;
    border: 1px solid rgba(245, 158, 11, 0.2);
}
.badge-pending .badge-dot { background: #f59e0b; box-shadow: 0 0 6px #f59e0b; }

.badge-overdue {
    background: #fff1f2;
    color: #e11d48;
    border: 1px solid rgba(244, 63, 94, 0.2);
}
.badge-overdue .badge-dot { background: #f43f5e; box-shadow: 0 0 6px #f43f5e; }

.badge-void {
    background: #f1f5f9;
    color: #475569;
    border: 1px solid #cbd5e1;
}
.badge-void .badge-dot { background: #64748b; }

/* Buttons */
.btn {
    border-radius: var(--radius-md);
    font-weight: 600;
    padding: 0.6rem 1.25rem;
    font-size: 0.92rem;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--primary-gradient);
    border: none;
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #4f46e5 0%, #4338ca 100%);
    box-shadow: 0 6px 18px rgba(99, 102, 241, 0.45);
    transform: translateY(-1px);
    color: #ffffff;
}

.btn-danger {
    background: var(--danger-gradient);
    border: none;
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(244, 63, 94, 0.3);
}

.btn-danger:hover {
    background: linear-gradient(135deg, #e11d48 0%, #be123c 100%);
    box-shadow: 0 6px 18px rgba(244, 63, 94, 0.45);
    transform: translateY(-1px);
    color: #ffffff;
}

.btn-light {
    background: #f1f5f9;
    color: #334155;
    border: 1px solid var(--border-color);
}

.btn-light:hover {
    background: #e2e8f0;
    color: #0f172a;
}

.btn-outline-primary {
    border-color: #6366f1;
    color: #4f46e5;
}

.btn-outline-primary:hover {
    background: var(--primary-gradient);
    border-color: transparent;
    color: #ffffff;
    box-shadow: var(--primary-glow);
}

.btn-icon {
    width: 38px;
    height: 38px;
    padding: 0;
    border-radius: var(--radius-md);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-icon:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn-icon-sm {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
}

.btn-icon-lg {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-lg);
    font-size: 1.15rem;
}

/* Action Toolbar */
.action-toolbar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.action-toolbar-group {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem;
    background: rgba(241, 245, 249, 0.6);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

body.dark-theme .action-toolbar-group {
    background: rgba(31, 41, 55, 0.6);
    border-color: var(--border-card);
}

/* Forms & Inputs */
.form-label {
    font-weight: 600;
    font-size: 0.88rem;
    color: #334155;
    margin-bottom: 0.4rem;
}

.form-control, .form-select {
    border-radius: var(--radius-md);
    border: 1.5px solid var(--border-color);
    padding: 0.65rem 1rem;
    font-size: 0.95rem;
    color: #1e293b;
    background-color: #ffffff;
    transition: all 0.2s ease;
}

.form-control:focus, .form-select:focus {
    border-color: #6366f1;
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
    background-color: #ffffff;
}

.form-control::placeholder {
    color: #94a3b8;
}

/* Modern File Upload Area */
.upload-dropzone {
    border: 2px dashed #cbd5e1;
    border-radius: var(--radius-lg);
    padding: 1.75rem 1.5rem;
    text-align: center;
    background: #f8fafc;
    transition: all 0.2s ease;
    cursor: pointer;
}

.upload-dropzone:hover {
    border-color: #6366f1;
    background: #eef2ff;
}

/* Signature & Logo Previews */
.preview-card {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
}

.preview-img {
    max-height: 70px;
    max-width: 180px;
    object-fit: contain;
}

/* 2026 Login Screen (Glassmorphism & Mesh Gradient) */
.login-bg {
    min-height: 100vh;
    background: radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.15) 0px, transparent 50%),
                radial-gradient(at 100% 100%, rgba(14, 165, 233, 0.12) 0px, transparent 50%),
                radial-gradient(at 50% 50%, rgba(244, 63, 94, 0.08) 0px, transparent 50%),
                #f8fafc;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.login-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-xl);
    box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.12);
    overflow: hidden;
}

/* Modern Item Row for dynamic invoice creation */
.item-row {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    margin-bottom: 1rem;
    transition: all 0.2s ease;
}

.item-row:hover {
    border-color: #cbd5e1;
    box-shadow: var(--shadow-sm);
}

/* Print/Document View Modern Canvas */
.document-canvas {
    background: #ffffff;
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 3rem;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 7px;
    height: 7px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* ==========================================================================
   DARK MODE 2026 THEME TOKENS & OVERRIDES
   ========================================================================== */
html.dark-theme, body.dark-theme {
    --bg-main: #0b0f19;
    --bg-card: #111827;
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --text-light: #6b7280;
    --border-color: #1f2937;
    --border-card: rgba(255, 255, 255, 0.08);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.4);
}

body.dark-theme {
    background-color: var(--bg-main);
    color: var(--text-main);
}

body.dark-theme .top-navbar {
    background: rgba(17, 24, 39, 0.85);
    border-bottom-color: #1f2937;
}

body.dark-theme .card,
body.dark-theme .stat-card {
    background-color: var(--bg-card);
    border-color: var(--border-card);
    color: var(--text-main);
}

body.dark-theme .card-header {
    background-color: rgba(255, 255, 255, 0.02);
    border-bottom-color: var(--border-color);
}

body.dark-theme .table {
    color: var(--text-main);
    border-color: var(--border-color);
}

body.dark-theme .table thead th {
    background-color: rgba(255, 255, 255, 0.03);
    color: var(--text-muted);
    border-bottom-color: var(--border-color);
}

body.dark-theme .table tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

body.dark-theme .form-control,
body.dark-theme .form-select {
    background-color: #1f2937;
    border-color: #374151;
    color: #f3f4f6;
}

body.dark-theme .form-control:focus,
body.dark-theme .form-select:focus {
    background-color: #1f2937;
    border-color: var(--primary-color);
    color: #ffffff;
}

body.dark-theme .btn-light {
    background-color: #1f2937;
    border-color: #374151;
    color: #e5e7eb;
}

body.dark-theme .btn-light:hover {
    background-color: #374151;
    color: #ffffff;
}

body.dark-theme .dropdown-menu {
    background-color: #1f2937;
    border-color: #374151;
    color: #f3f4f6;
}

body.dark-theme .dropdown-item {
    color: #d1d5db;
}

body.dark-theme .dropdown-item:hover {
    background-color: #374151;
    color: #ffffff;
}

body.dark-theme .bg-light {
    background-color: #1f2937 !important;
}

body.dark-theme .text-dark {
    color: #f9fafb !important;
}

body.dark-theme .preview-card {
    background-color: #1f2937;
    border-color: #374151;
}

body.dark-theme .item-row {
    background-color: #111827;
    border-color: #1f2937;
}