:root {
    /* Color System */
    --primary: #4F46E5;
    --primary-hover: #4338ca;
    --background: #F3F4F6;
    --surface: #FFFFFF;
    --text: #111827;
    --text-muted: #6B7280;
    --border: #E5E7EB;
    
    /* Semantic Colors */
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --danger-hover: #DC2626;

    /* Typography */
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;

    /* Spacing & Layout */
    --spacing-1: 8px;
    --spacing-2: 16px;
    --spacing-3: 24px;
    --spacing-4: 32px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

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

body {
    font-family: var(--font-family);
    background-color: var(--background);
    color: var(--text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
}

/* ====================================================
   PREMIUM LOGIN PAGE REDESIGN (GRADIENT APP STYLE)
   ==================================================== */
.login-body-app {
    flex: 1; width: 100%; margin: 0; padding: 0; min-height: 100vh;
    background: linear-gradient(135deg, #e6d3f9 0%, #b2d5f6 100%);
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    position: relative; overflow: hidden;
}

.login-wave {
    position: absolute; bottom: 0; left: 0; width: 100%;
    height: 30vh; min-height: 200px;
    z-index: 1; pointer-events: none;
}

.app-login-container {
    position: relative; z-index: 2;
    width: 100%; max-width: 380px;
    padding: 20px 24px;
    text-align: center;
    transform: translateY(-6vh);
}

.app-login-title {
    font-size: 2.25rem; font-weight: 700; color: #ffffff;
    margin-bottom: 40px; text-shadow: 0 2px 10px rgba(0,0,0,0.05);
    letter-spacing: 0.5px;
}

.app-login-form {
    display: flex; flex-direction: column; gap: 20px;
}

.app-input-wrapper {
    position: relative; display: flex; align-items: center;
}

.app-input-icon {
    position: absolute; left: 24px; color: #a0aec0;
    font-size: 1.1rem; pointer-events: none;
    transition: color 0.3s;
}

.app-input {
    width: 100%; padding: 18px 24px 18px 56px;
    font-size: 1rem; color: #2d3748;
    background: #ffffff; border: none; border-radius: 50px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
    outline: none; transition: box-shadow 0.3s, transform 0.3s;
}

.app-input::placeholder { color: #cbd5e0; font-weight: 500; }
.app-input:focus {
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}
.app-input-wrapper:focus-within .app-input-icon {
    color: #6b5cd3;
}

.app-btn-login {
    width: 100%; padding: 18px;
    background: linear-gradient(135deg, #8176e3 0%, #6051d2 100%);
    color: #ffffff; border: none; border-radius: 50px;
    font-size: 1.1rem; font-weight: 600; cursor: pointer;
    box-shadow: 0 10px 20px rgba(96, 81, 210, 0.3);
    transition: box-shadow 0.3s, transform 0.3s;
    margin-top: 10px;
}

.app-btn-login:hover {
    box-shadow: 0 15px 25px rgba(96, 81, 210, 0.4);
    transform: translateY(-2px);
}
.app-btn-login:active {
    transform: translateY(1px);
}

.app-alert {
    background-color: rgba(255, 255, 255, 0.95);
    border-left: 4px solid #f56565;
    color: #c53030; padding: 16px 20px; border-radius: 12px;
    margin-bottom: 24px; text-align: left;
    font-size: 0.9rem; font-weight: 600;
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
}


/* Column Customizer Panel */
.customizer-panel { background: var(--surface); border-radius: var(--radius-md); padding: 20px; margin-bottom: 24px; border: 1px solid var(--border); }
.customizer-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; cursor: pointer; }
.customizer-title { font-weight: 600; color: var(--primary); font-size: 1.1rem; display: flex; align-items: center; gap: 8px; margin: 0; }
.customizer-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; margin-bottom: 16px; }
.checkbox-item { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; color: var(--text-main); cursor: pointer; user-select: none; }
.checkbox-item input { cursor: pointer; width: 16px; height: 16px; accent-color: var(--primary); }
.customizer-actions { display: flex; gap: 12px; flex-wrap: wrap; padding-top: 16px; border-top: 1px solid var(--border); }
.customizer-content { display: block; } /* Toggleable via JS */

.hidden-column { display: none !important; }

/* Dashboard Chart */
.dashboard-header { background: var(--primary); color: #fff; padding: 16px 0 12px 0; text-align: center; font-size: 1.19rem; letter-spacing: .5px; font-weight: 600; }
.dashboard-main { flex: 1 1 auto; display: flex; flex-direction: column; justify-content: center; align-items: center; padding: 22px 10px 32px 10px; }
.actions { display: flex; flex-direction: column; align-items: center; background: var(--surface); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); padding: 36px 18px; max-width: 355px; width: 100%; border: 1px solid var(--border); }
.action-row { width: 100%; display: flex; flex-wrap: wrap; justify-content: center; gap: 24px; margin-bottom: 20px; }
.action-btn { display: flex; flex-direction: column; align-items: center; justify-content: center; min-width: 90px; min-height: 90px; margin: 0 10px 18px 10px; background: var(--background); color: var(--primary); border-radius: var(--radius-sm); box-shadow: var(--shadow-sm); font-size: 1.9rem; text-decoration: none; font-weight: 600; transition: background 0.16s, color 0.16s, box-shadow 0.19s; border: 1px solid var(--border); }
.action-btn span { font-size: 1.05rem; color: var(--text); margin-top: 0.55rem; font-weight: 500; letter-spacing: .1px; }
.action-btn:hover, .action-btn:focus { background: var(--primary); color: #fff !important; box-shadow: var(--shadow-md); }
.action-btn:hover span, .action-btn:focus span { color: #fff; }
.dashboard-footer { background-color: var(--danger); color: white; text-align: center; padding: 1rem 0.5rem; font-size: 1rem; letter-spacing: .4px; margin-top: auto; }
.dashboard-footer a { color: #fff; text-decoration: underline; }
@media (max-width: 600px) { .actions { padding: 22px 5px; } .action-row { gap: 16px; } .action-btn { min-width: 90px; min-height: 90px; margin: 0 2vw 12px 2vw; } }


/* ====================================================
   DAILY ENTRY MODERNIZATION
   ==================================================== */
.daily-entry-form-layout { display: flex; flex-direction: column; gap: 24px; }
.entry-card { background: var(--surface); border-radius: 12px; border: 1px solid var(--border); box-shadow: var(--shadow-sm); padding: 24px; position: relative; overflow: hidden; }
.entry-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px; }
.card-accent-gray::before { background-color: #9ca3af; }
.card-accent-indigo::before { background-color: #6366f1; }
.card-accent-blue::before { background-color: #3b82f6; }
.card-accent-amber::before { background-color: #f59e0b; }

.entry-card-header { font-size: 1.25rem; font-weight: 800; color: var(--text-main); margin: 0 0 24px 0; display: flex; align-items: center; justify-content: center; gap: 10px; text-align: center; }
.entry-card-header i { color: var(--text-muted); font-size: 1.25rem; }

/* Dynamic Layout Grids */
.entry-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.entry-grid-1 { display: grid; grid-template-columns: 1fr; gap: 20px; }

@media (max-width: 900px) {
    .entry-grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
    .entry-grid-3 { grid-template-columns: 1fr; }
    .entry-card { padding: 16px; }
}

/* Form Groups & Inputs */
.form-group { margin-bottom: 16px; }
.form-label { display: block; text-align: center; margin-bottom: 10px; font-size: 0.875rem; font-weight: 600; color: #374151; letter-spacing: 0.3px; }
.label-icon { color: #6b7280; font-size: 0.95rem; }
.form-input {
    width: 100%; padding: 12px 16px; font-size: 1rem; border: 1px solid var(--border); border-radius: 8px;
    background-color: var(--background); color: var(--text-main); outline: none; transition: all 0.2s; box-sizing: border-box; text-align: center;
}
.form-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15); background-color: var(--surface); }

/* Input Prefix Wrapper for Currency */
.input-prefix-wrapper { position: relative; display: flex; align-items: center; width: 100%; }
.input-prefix { position: absolute; left: 16px; font-size: 1rem; font-weight: 500; color: var(--text-muted); pointer-events: none; }
.form-input-prefixed { padding-left: 36px; }
.input-prefix-wrapper:focus-within .input-prefix { color: var(--primary); }

.validation-message { font-size: 0.85rem; color: var(--danger); margin-top: 6px; }

/* Modern Save Button */
.submit-btn-modern {
    width: 100%; padding: 16px; font-size: 1.1rem; font-weight: 700; color: white; background-color: var(--primary);
    border: none; border-radius: 8px; cursor: pointer; box-shadow: 0 4px 6px -1px rgba(79, 70, 229, 0.2); transition: all 0.2s ease;
    display: flex; align-items: center; justify-content: center;
}
.submit-btn-modern:hover { background-color: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 6px 10px -1px rgba(79, 70, 229, 0.3); }
.submit-btn-modern:active { transform: translateY(1px); }

.message { margin: 20px 0; text-align: center; font-weight: 600; padding: 16px; border-radius: 8px; }
.message.error { color: #c53030; background-color: #fef2f2; border: 1px solid #fecaca; }
.message.success { color: #065f46; background-color: #ecfdf5; border: 1px solid #a7f3d0; }


/* View/Edit Styles */
.view-edit-container { max-width: 600px; margin: auto; padding-bottom: 40px; }
.card { background: var(--surface); box-shadow: var(--shadow-sm); padding: 24px 32px; border-radius: var(--radius-md); margin: auto; max-width: 420px; border: 1px solid var(--border); }
.button-row { display: flex; gap: 20px; margin-top: 28px; }
.form-btn { flex: 1; font-size: 1.1rem; font-weight: 700; border-radius: var(--radius-sm); border: none; cursor: pointer; height: 50px; transition: 0.2s; color: #fff; }
.form-btn.update { background: var(--primary); }
.form-btn.update:hover { background: var(--primary-hover); }
.form-btn.delete { background: var(--danger); box-shadow: 0 2px 12px rgba(239, 68, 68, 0.4); }
.form-btn.delete:hover { background: var(--danger-hover); }
.nav-buttons { display: flex; justify-content: center; gap: 18px; margin-top: 20px; }
.nav-btn { background: var(--primary); color: #fff; border-radius: var(--radius-sm); font-size: 1.03rem; font-weight: 600; padding: 7px 16px; text-decoration: none; cursor: pointer; transition: background 0.2s; border: none; }
.nav-btn:hover, .nav-btn:focus { background: var(--primary-hover); }


/* Print/Report Styles */
.print-container { margin: 20px; background: var(--surface); }
.print-container h2 { margin-bottom: 20px; text-align: center; color: var(--primary); }
.print-filter-form { text-align: center; margin-bottom: 15px; }
.print-filter-form input[type=date] { padding: 6px 10px; font-size: 1rem; border-radius: var(--radius-sm); border: 1px solid var(--border); margin: 0 8px; max-width: 200px; width: 40vw; box-sizing: border-box; }
.print-btn { cursor: pointer; padding: 10px 22px; margin: 5px 10px 18px 10px; font-size: 1rem; border: none; border-radius: var(--radius-sm); color: white; background-color: var(--primary); transition: background-color 0.25s; }
.print-btn:hover { background-color: var(--primary-hover); }
.print-table { width: 100%; border-collapse: collapse; margin-bottom: 30px; max-width: 100%; table-layout: fixed; }
.print-table th, .print-table td { border: 1px solid var(--border); padding: 8px 6px; font-size: 0.95rem; word-wrap: break-word; }
.print-table th { background: var(--primary); color: white; text-align: center; position: sticky; top: 0; z-index: 10; }
.print-table td { text-align: right; }
.print-table td:first-child, .print-table td:nth-child(2), .print-table td:nth-child(3) { text-align: center; }
@media only screen and (max-width: 768px) { .print-filter-form input[type=date], .print-btn { font-size: 0.9rem; padding: 8px 14px; margin: 5px 5px 15px 5px; } .print-table th, .print-table td { font-size: 0.85rem; padding: 6px 4px; white-space: nowrap; } .print-table-wrapper { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; } }
@media only screen and (min-width: 769px) { .print-table-wrapper { display: table; width: 100%; } .print-table th, .print-table td { white-space: normal; } }
@media only screen and (max-width: 480px) { .print-filter-form input[type=date], .print-btn { width: 90%; max-width: none; box-sizing: border-box; font-size: 0.9rem; padding: 10px 0; margin: 7px 0 15px 0; } }
@media print { .print-btn, .print-filter-form, .page-header { display: none !important; } body { margin: 10mm; } .print-table { page-break-inside: avoid; } }


/* ====================================================
   PHASE B: DESIGN SYSTEM
   ==================================================== */
:root {
    /* Base Variables (Light) */
    --primary: #4F46E5;
    --primary-hover: #4338ca;
    --background: #F9FAFB;
    --surface: #FFFFFF;
    --text-main: #111827;
    --text-muted: #6B7280;
    --border: #E5E7EB;
    
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --danger-hover: #DC2626;

    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
    
    --radius-sm: 8px;
    --radius-md: 12px;
    
    --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 -1px rgba(0, 0, 0, 0.03);
}

:root[data-theme="dark"] {
    /* Dark Mode Variables */
    --background: #111827;
    --surface: #1F2937;
    --text-main: #F9FAFB;
    --text-muted: #9CA3AF;
    --border: #374151;
}

/* Base Overrides */
body {
    background-color: var(--background);
    color: var(--text-main);
    font-family: var(--font-family);
    margin: 0;
    padding: 0;
}

/* Button System */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 8px 16px; font-size: 0.875rem; font-weight: 500;
    border-radius: var(--radius-sm); border: 1px solid transparent;
    cursor: pointer; transition: all 0.2s ease;
    box-shadow: var(--shadow-sm); min-height: 44px; /* Touch friendly */
}
.btn-primary { background-color: var(--primary); color: #fff; }
.btn-primary:hover { background-color: var(--primary-hover); }
.btn-danger { background-color: var(--danger); color: #fff; }
.btn-danger:hover { background-color: var(--danger-hover); }
.btn-outline { background-color: transparent; border-color: var(--border); color: var(--text-main); box-shadow: none; }
.btn-outline:hover { background-color: var(--background); }

/* Card System */
.kfs-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-md); box-shadow: var(--shadow-sm);
    padding: 24px;
}

/* Form System */
.form-group { margin-bottom: 16px; }
.form-label { display: block; margin-bottom: 8px; font-size: 0.875rem; font-weight: 500; color: var(--text-main); }
.form-input {
    width: 100%; padding: 10px 12px; font-size: 1rem; /* Prevent iOS zoom */
    border: 1px solid var(--border); border-radius: var(--radius-sm);
    background-color: var(--surface); color: var(--text-main);
    transition: border-color 0.2s, box-shadow 0.2s;
    min-height: 44px; /* Touch friendly */
}
.form-input:focus {
    outline: none; border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* Toast System */
.toast-container {
    position: fixed; bottom: 24px; right: 24px; z-index: 50;
    display: flex; flex-direction: column; gap: 8px;
}
.toast {
    min-width: 250px; padding: 12px 16px; border-radius: var(--radius-sm);
    background: var(--surface); color: var(--text-main);
    box-shadow: var(--shadow-md); border-left: 4px solid var(--primary);
    display: flex; align-items: center; justify-content: space-between;
    animation: slideInRight 0.3s ease-out forwards;
}
.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
@keyframes slideInRight { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* Navigation System (Top Bar) */
.top-nav {
    background-color: var(--surface); border-bottom: 1px solid var(--border);
    padding: 0 24px; height: 64px; display: flex; align-items: center; justify-content: space-between;
    position: sticky; top: 0; z-index: 40;
}
.nav-brand { font-weight: 700; font-size: 1.25rem; color: var(--primary); display: flex; align-items: center; gap: 8px; }
.nav-links { display: flex; gap: 24px; align-items: center; }
.nav-link { color: var(--text-muted); font-size: 0.875rem; font-weight: 500; transition: color 0.2s; min-height: 44px; display: flex; align-items: center; }
.nav-link:hover, .nav-link.active { color: var(--text-main); }
.mobile-menu-btn { display: none; background: transparent; border: none; font-size: 1.5rem; color: var(--text-main); cursor: pointer; padding: 10px; min-height: 44px; }

/* Table Wrapper for Horizontal Scroll */
.table-responsive {
    width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch;
    border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--surface);
}
.kfs-table th { position: sticky; top: 0; z-index: 10; background-color: var(--primary); }
.kfs-table tfoot th { position: sticky; bottom: 0; z-index: 10; }


/* Dashboard Redesign Styles */
.dashboard-layout { padding: var(--spacing-3) var(--spacing-4); max-width: 1400px; margin: 0 auto; }
.dashboard-header-flex { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 20px; margin-bottom: var(--spacing-4); }
.dashboard-title { font-size: 1.5rem; font-weight: 700; color: var(--text-main); margin: 0; }
.dashboard-title-group { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.role-badge { padding: 2px 10px; font-size: 0.65rem; font-weight: 700; border-radius: 9999px; display: inline-block; letter-spacing: 0.5px; text-transform: uppercase; }
.badge-admin { background-color: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.badge-user { background-color: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; }
.highlight-username { color: var(--primary); font-weight: 700; }
.user-greeting { color: var(--text-main); font-size: 1.1rem; font-weight: 500; margin: 0; }
.user-subtitle { color: var(--text-muted); font-size: 0.875rem; }

/* KPI Grid */
.kpi-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; margin-bottom: 30px; }
.kpi-card { background: var(--surface); padding: 24px; border-radius: var(--radius-md); box-shadow: var(--shadow-sm); display: flex; flex-direction: column; position: relative; overflow: hidden; border: 1px solid var(--border); transition: transform 0.2s; height: 100%; justify-content: space-between; }
.kpi-title { font-size: clamp(0.7rem, 2vw, 0.875rem); color: var(--text-muted); font-weight: 500; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: var(--spacing-1); line-height: 1.2; }
.kpi-value { font-size: clamp(1.15rem, 3vw, 1.5rem); font-weight: 700; color: var(--text-main); white-space: nowrap; line-height: 1.2; padding-bottom: 4px; }
.kpi-icon { color: var(--primary); margin-bottom: 8px; font-size: 1.25rem; }
.kpi-prominent { background-color: #f0fdf4; border: 2px solid var(--success); box-shadow: 0 4px 6px -1px rgba(16, 185, 129, 0.2); }
.kpi-prominent .kpi-value { font-size: clamp(1.25rem, 3.5vw, 1.6rem); color: var(--success); }

/* Main Content Grid */
.dashboard-content-grid { display: grid; grid-template-columns: 2fr 1fr; gap: var(--spacing-4); }
.chart-container { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); padding: var(--spacing-3); box-shadow: var(--shadow-sm); height: 400px; }
.quick-actions-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); padding: var(--spacing-3); box-shadow: var(--shadow-sm); }
.section-title { font-size: 1.125rem; font-weight: 600; color: var(--text-main); margin-bottom: var(--spacing-2); padding-bottom: var(--spacing-1); border-bottom: 1px solid var(--border); }

/* Quick Actions Grid */
.quick-actions-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--spacing-3); margin-bottom: var(--spacing-4); width: 100%; }
.quick-action-btn { background: var(--surface); border-radius: var(--radius-md); padding: 24px 16px; border: 1px solid var(--border); box-shadow: var(--shadow-sm); display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; text-decoration: none; transition: all 0.2s ease; height: 100%; }
.quick-action-btn i { font-size: 1.75rem; color: var(--primary); margin-bottom: 12px; transition: transform 0.2s ease, color 0.2s ease; }
.quick-action-btn span { font-size: 0.9rem; font-weight: 600; color: var(--text-main); }
.quick-action-btn:hover { background: var(--primary); border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-2px); }

/* Navigation Dropdown */
.nav-dropdown { position: relative; display: inline-block; height: 100%; }
.dropdown-content { display: none; position: absolute; background-color: var(--surface); min-width: 220px; box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1); z-index: 100; border-radius: var(--radius-sm); border: 1px solid var(--border); top: 100%; left: 0; overflow: hidden; }
.dropdown-content a { color: var(--text-main); padding: 14px 16px; text-decoration: none; display: block; font-size: 0.95rem; font-weight: 600; transition: all 0.2s; border-bottom: 1px solid var(--border); }
.dropdown-content a:last-child { border-bottom: none; }
.dropdown-content a:hover { background-color: var(--background); color: var(--primary); padding-left: 20px; }
.nav-dropdown:hover .dropdown-content { display: block; }

/* Quick Actions Button (Modern) */
.actions { background: var(--surface); padding: 30px; border-radius: var(--radius-md); box-shadow: var(--shadow-sm); margin-bottom: 35px; border: 1px solid var(--border); }
.quick-action-btn:hover i { color: #ffffff; transform: scale(1.1); }
.quick-action-btn:hover span { color: #ffffff; }

/* Responsive Adjustments */
@media (max-width: 1024px) {
    .dashboard-content-grid { grid-template-columns: 1fr; }
    .kpi-grid { grid-template-columns: repeat(2, 1fr); }
    .quick-actions-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    /* Mobile Hamburger Menu */
    .mobile-menu-btn { display: block; }
    .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; background: var(--surface); flex-direction: column; gap: 0; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-md); padding: 8px 0; }
    .nav-links.active { display: flex; }
    .nav-link { padding: 12px 24px; width: 100%; box-sizing: border-box; }
    .nav-actions { display: none; }
    /* Chart Resizing */
    .chart-container { height: 280px; }
}
@media (max-width: 640px) {
    .dashboard-layout { padding: 8px; }
    .quick-actions-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; margin-bottom: 16px; }
    .quick-action-btn { padding: 16px 8px; }
    .quick-action-btn i { font-size: 1.5rem; margin-bottom: 8px; }
    .quick-action-btn span { font-size: 0.8rem; }
    .kpi-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; } /* Exactly 2 per row */
    .kpi-card { padding: 12px; }
    .dashboard-header-flex { gap: 8px; margin-bottom: 12px; }
    .toast { width: calc(100vw - 48px); min-width: auto; }
}
@media (max-width: 480px) {
    .button-row { flex-direction: column; gap: 12px; }
    .form-btn { width: 100%; }
}