/* Pure Drinking Water Management System - Premium Stylesheet */

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

:root {
    --primary-color: #0077B6;
    --primary-hover: #005f90;
    --accent-color: #00B4D8;
    --bg-color: #f3f7fa;
    --card-bg: rgba(255, 255, 255, 0.7);
    --card-border: rgba(255, 255, 255, 0.4);
    --text-color: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow-color: rgba(0, 0, 0, 0.05);
    --sidebar-bg: rgba(255, 255, 255, 0.8);
    --sidebar-border: rgba(0, 0, 0, 0.06);
    
    --success-color: #10b981;
    --success-bg: rgba(16, 185, 129, 0.1);
    --danger-color: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
    --warning-color: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);
    
    --card-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.06);
    --border-radius: 16px;
    --transition-speed: 0.3s;
}

[data-theme="dark"] {
    --primary-color: #00B4D8;
    --primary-hover: #48cae4;
    --accent-color: #0077B6;
    --bg-color: #0b0f19;
    --card-bg: rgba(22, 30, 49, 0.7);
    --card-border: rgba(255, 255, 255, 0.05);
    --text-color: #f1f5f9;
    --text-secondary: #94a3b8;
    --border-color: #1e293b;
    --shadow-color: rgba(0, 0, 0, 0.25);
    --sidebar-bg: rgba(15, 23, 42, 0.8);
    --sidebar-border: rgba(255, 255, 255, 0.05);
    
    --success-color: #34d399;
    --success-bg: rgba(52, 211, 153, 0.15);
    --danger-color: #f87171;
    --danger-bg: rgba(248, 113, 113, 0.15);
    --warning-color: #fbbf24;
    --warning-bg: rgba(251, 191, 36, 0.15);
    
    --card-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'SolaimanLipi', 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    transition: background-color var(--transition-speed), color var(--transition-speed);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6, p, label {
    color: var(--text-color);
    transition: color var(--transition-speed);
}

/* Background Gradients — desktop only for performance */
@media (min-width: 993px) {
body::before {
    content: '';
    position: fixed;
    top: -10%;
    right: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(0, 180, 216, 0.08) 0%, rgba(0, 119, 182, 0.02) 70%, transparent 100%);
    z-index: -1;
    pointer-events: none;
}

body::after {
    content: '';
    position: fixed;
    bottom: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.06) 0%, rgba(0, 180, 216, 0.01) 70%, transparent 100%);
    z-index: -1;
    pointer-events: none;
}
}

/* Sidebar Styling */
.sidebar {
    width: 260px;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    background: var(--sidebar-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-right: 1px solid var(--sidebar-border);
    transition: left var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1045;
    display: flex;
    flex-direction: column;
    will-change: left;
}

.sidebar-header {
    padding: 24px 20px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h5 {
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 0;
    font-size: 1.3rem;
    letter-spacing: 0.5px;
}

.sidebar .nav {
    padding: 15px 10px;
    flex-grow: 1;
    overflow-y: auto;
}

.sidebar .nav-link {
    color: var(--text-color);
    font-weight: 500;
    border-radius: 12px;
    margin: 4px 8px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.2s ease;
}

.sidebar .nav-link i {
    font-size: 1.15rem;
    transition: transform 0.2s ease;
}

.sidebar .nav-link:hover {
    background: rgba(0, 119, 182, 0.08);
    color: var(--primary-color);
    transform: translateX(4px);
}

.sidebar .nav-link:hover i {
    transform: scale(1.1);
}

.sidebar .nav-link.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: #fff !important;
    box-shadow: 0 4px 15px rgba(0, 180, 216, 0.25);
}

.sidebar .nav-link.active i {
    color: #fff !important;
}

/* Main Layout Positioning */
.main-content {
    margin-left: 260px;
    padding: 96px 24px 24px 24px;
    transition: margin-left var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    min-height: 100vh;
}

.navbar-top {
    margin-left: 260px;
    height: 72px;
    background: var(--sidebar-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--sidebar-border);
    transition: margin-left var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1040;
    box-shadow: none;
}

.navbar-top .navbar-text, #current-bengali-date {
    color: var(--text-color) !important;
}

/* Sidebar State Classes */
body.sidebar-collapsed .sidebar {
    left: -260px;
}

body.sidebar-collapsed .main-content,
body.sidebar-collapsed .navbar-top {
    margin-left: 0;
}

/* Modern Card Styling (Glassmorphism) */
.card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color var(--transition-speed);
    max-width: 100%;
    overflow: hidden;
    contain: layout style;
}

.card:hover {
    box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.1);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--border-color);
    padding: 16px 24px;
    font-weight: 600;
    color: var(--text-color);
}

/* Page Header Titles */
.page-title {
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 24px;
    font-size: 1.75rem;
}

/* Summary Card styling */
.summary-card .card-body {
    display: flex;
    align-items: center;
    padding: 24px;
}

.summary-card .icon {
    font-size: 1.8rem;
    width: 60px;
    height: 60px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.summary-card .card-title, .summary-card .card-text, .summary-card p {
    font-size: 0.95rem;
    color: var(--text-secondary) !important;
    margin-bottom: 4px;
    font-weight: 500;
}

.summary-card h5 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
}

.text-income {
    color: var(--success-color) !important;
}

.text-expense {
    color: var(--danger-color) !important;
}

.text-profit {
    color: #0d9488 !important;
}

[data-theme="dark"] .text-profit {
    color: #22d3ee !important;
}

.text-due {
    color: var(--warning-color) !important;
}

[data-theme="dark"] .text-muted {
    color: var(--text-secondary) !important;
}

/* Form Controls Styling */
.form-control, .form-select {
    background-color: rgba(255, 255, 255, 0.6);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 10px 14px;
    color: var(--text-color) !important;
    transition: all 0.2s ease;
}

.form-select option {
    background-color: var(--bg-color);
    color: var(--text-color);
}

[data-theme="dark"] .form-control, [data-theme="dark"] .form-select {
    background-color: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .form-select option {
    background-color: #1e293b;
    color: #f1f5f9;
}

/* Placeholder & Suggestion Styling */
.form-control::placeholder, ::placeholder {
    color: var(--text-secondary) !important;
    opacity: 0.65 !important;
}

[data-theme="dark"] .form-control::placeholder, [data-theme="dark"] ::placeholder {
    color: #94a3b8 !important;
    opacity: 0.55 !important;
}

/* Browser Autofill Overrides */
input:-webkit-autofill,
input:-webkit-autofill:hover, 
input:-webkit-autofill:focus, 
input:-webkit-autofill:active {
    -webkit-text-fill-color: var(--text-color) !important;
    transition: background-color 50000s ease-in-out 0s;
    box-shadow: inset 0 0 20px 20px var(--card-bg) !important;
}

.form-control:focus, .form-select:focus {
    background-color: rgba(255, 255, 255, 0.9);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.15);
}

[data-theme="dark"] .form-control:focus, [data-theme="dark"] .form-select:focus {
    background-color: rgba(15, 23, 42, 0.8);
}

.form-label {
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 6px;
    font-size: 0.9rem;
}

/* Custom Buttons styling */
.btn {
    border-radius: 10px;
    padding: 10px 20px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border: none;
    box-shadow: 0 4px 15px rgba(0, 180, 216, 0.2);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary-color) 100%);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(0, 180, 216, 0.3);
}

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

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

/* Modern Tables design */
.table-responsive {
    border-radius: 12px;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch;
    border: 1px solid var(--border-color);
    display: block;
    width: 100%;
}

.table {
    margin-bottom: 0;
    background-color: transparent;
    color: var(--text-color);
}

.table th, .table td {
    color: var(--text-color) !important;
}

.table th {
    background-color: rgba(0, 119, 182, 0.06) !important;
    color: var(--primary-color) !important;
    font-weight: 600;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
}

.table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
    background-color: transparent !important;
}

.table > :not(caption) > * > * {
    color: var(--text-color) !important;
    border-bottom-color: var(--border-color) !important;
}

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

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0, 0, 0, 0.015) !important;
}

[data-theme="dark"] .table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(255, 255, 255, 0.015) !important;
}

.table-hover tbody tr:hover {
    background-color: rgba(0, 119, 182, 0.04) !important;
}

/* Badges styling */
.badge {
    padding: 6px 12px;
    font-weight: 500;
    border-radius: 30px;
}

.bg-success-subtle {
    background-color: var(--success-bg) !important;
    color: var(--success-color) !important;
}

.bg-danger-subtle {
    background-color: var(--danger-bg) !important;
    color: var(--danger-color) !important;
}

.bg-warning-subtle {
    background-color: var(--warning-bg) !important;
    color: var(--warning-color) !important;
}

.due-high {
    color: var(--danger-color);
    font-weight: 600;
}

.due-medium {
    color: var(--warning-color);
    font-weight: 500;
}

.due-ok {
    color: var(--success-color);
}

/* Modals design */
.modal-content {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    color: var(--text-color);
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
    background: rgba(0, 119, 182, 0.04);
    color: var(--text-color);
}

.modal-footer {
    border-top: 1px solid var(--border-color);
}

.list-group-item {
    background-color: var(--card-bg) !important;
    color: var(--text-color) !important;
    border-color: var(--border-color) !important;
}

/* Delete note styling */
.delete-note-icon {
    cursor: pointer;
    color: var(--danger-color);
    opacity: 0.6;
    transition: opacity 0.2s ease;
}

.delete-note-icon:hover {
    opacity: 1;
}

/* Floating overlay for mobile menu backdrop */
#sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 1040;
}

/* Chart heights constraints */
.monthlyChart-wrapper, .paymentMethodChart-wrapper, .expenseMethodChart-wrapper {
    position: relative;
    width: 100%;
    height: 320px;
}

/* Login Lockscreen Design */
.login-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--bg-color);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.login-card {
    width: 100%;
    max-width: 400px;
    padding: 40px 30px;
    text-align: center;
}

.login-logo {
    width: 70px;
    height: 70px;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.25rem;
    color: #fff;
    margin: 0 auto 20px auto;
    box-shadow: 0 8px 25px rgba(0, 180, 216, 0.3);
}

.login-card h3 {
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-color);
}

.login-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 30px;
}

.login-input {
    letter-spacing: 6px;
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

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

/* Custom Toast Styling */
.toast-container {
    z-index: 1060;
}

/* Responsive layout adjustments */
@media (max-width: 992px) {
    .sidebar {
        left: -260px;
    }
    
    .main-content, .navbar-top {
        margin-left: 0 !important;
    }
    
    body.sidebar-open .sidebar {
        left: 0;
    }
    
    body.sidebar-open #sidebar-overlay {
        display: block;
    }
    
    /* Force horizontal scroll for all tables on tablet/mobile screens */
    .table th, .table td {
        white-space: nowrap !important;
    }
}

/* Mobile responsive constraints below 576px */
@media (max-width: 576px) {
    .main-content {
        padding: 86px 14px 14px 14px;
    }
    
    .navbar-top {
        padding: 0 10px;
        height: 60px;
    }
    
    .navbar-top .container-fluid {
        flex-wrap: nowrap !important;
        padding: 0;
    }
    
    .navbar-top .navbar-brand {
        font-size: 1.05rem !important;
        margin-left: 4px !important;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    
    .navbar-top .btn, .navbar-top .badge {
        padding: 6px 10px !important;
        font-size: 0.85rem !important;
        flex-shrink: 0 !important;
    }
    
    .navbar-top .gap-sm-3 {
        gap: 6px !important;
    }
    
    .page-title {
        font-size: 1.45rem;
        margin-bottom: 16px;
    }
    
    .summary-card .card-body {
        padding: 16px;
    }
    
    .summary-card .icon {
        width: 46px;
        height: 46px;
        font-size: 1.35rem;
        margin-right: 12px;
    }
    
    .summary-card h5 {
        font-size: 1.25rem;
    }
    
    /* Clean horizontal scrolling for mobile tables */
    .table th, .table td {
        padding: 10px 12px !important;
        font-size: 0.85rem !important;
        white-space: nowrap !important;
    }
}

/* Printable report styles */
@media print {
    /* Hide navigation and utility elements completely */
    .sidebar, 
    .navbar-top, 
    #sidebar-overlay, 
    .no-print, 
    button, 
    .btn,
    .modal {
        display: none !important;
    }
    
    /* Reset main layout space */
    body {
        background-color: #ffffff !important;
        color: #000000 !important;
    }
    
    .main-content {
        margin: 0 !important;
        padding: 0 !important;
        background: #ffffff !important;
    }
    
    /* Force visibility of active printable pages */
    #reports-page, 
    #invoice-page {
        display: block !important;
    }
    
    #printable-report, 
    #invoice-container {
        position: static !important;
        border: none !important;
        box-shadow: none !important;
        background: #ffffff !important;
        color: #000000 !important;
        padding: 0 !important;
        margin: 0 !important;
        width: 100% !important;
        max-width: 100% !important;
    }
    
    /* Format tables for print output */
    .table-responsive {
        overflow: visible !important;
        border: none !important;
        border-radius: 0 !important;
    }
    
    .table {
        width: 100% !important;
        border-collapse: collapse !important;
        color: #000000 !important;
    }
    
    .table th, 
    .table td {
        border: 1px solid #dddddd !important;
        padding: 8px 10px !important;
        color: #000000 !important;
        background-color: transparent !important;
        white-space: normal !important; /* Allow wrapping on paper */
        font-size: 10pt !important;
    }
    
    .table th {
        background-color: #f1f5f9 !important;
        color: #000000 !important;
        font-weight: bold !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
    
    .table-striped tbody tr:nth-of-type(odd) {
        background-color: #f9f9f9 !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
}

/* Mobile Performance Optimizations */
/* ═══════════════════════════════════════════════════════════════════
   backdrop-filter: blur() is the #1 GPU lag cause on mobile.
   On ≤992px: replace with solid opaque backgrounds instead.
   ═══════════════════════════════════════════════════════════════════ */
@media (max-width: 992px) {

    /* Disable GPU-expensive blur on sidebar */
    .sidebar {
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
        background: var(--card-bg-solid) !important;
        border-right: 1px solid var(--border-color) !important;
    }

    /* Disable GPU-expensive blur on top navbar */
    .navbar-top {
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
        background: var(--card-bg-solid) !important;
        border-bottom: 1px solid var(--border-color) !important;
        box-shadow: 0 1px 6px rgba(0,0,0,0.07) !important;
    }

    /* Disable GPU-expensive blur on all cards */
    .card {
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
        background: var(--card-bg-solid) !important;
    }

    /* Disable hover transform — causes 300ms touch delay */
    .card:hover {
        transform: none !important;
        box-shadow: var(--card-shadow) !important;
    }

    .sidebar .nav-link:hover {
        transform: none !important;
    }

    .sidebar .nav-link:hover i {
        transform: none !important;
    }

    /* Smooth native scroll on iOS webkit */
    .table-responsive,
    .sidebar .nav,
    .main-content,
    .modal-body {
        -webkit-overflow-scrolling: touch;
    }

    /* Remove 300ms tap delay on ALL interactive elements */
    .btn, .nav-link, .form-control, .form-select,
    button, a, input, select, textarea {
        touch-action: manipulation;
    }

    /* Speed up CSS transitions */
    :root {
        --transition-speed: 0.15s;
    }

    /* Slightly smaller padding — less reflow */
    .main-content {
        padding: 80px 12px 20px 12px;
    }

    .card-body {
        padding: 14px !important;
    }

    /* Disable page-level transitions on mobile */
    .page {
        animation: none !important;
        transition: none !important;
    }

    /* Disable summary-card icon shadow (expensive) */
    .summary-card .icon {
        box-shadow: none !important;
    }
}

/* Solid background vars — used on mobile instead of rgba+blur */
:root {
    --card-bg-solid: #f8fafc;
}
[data-theme="dark"] {
    --card-bg-solid: #161e31;
}