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

:root {
    --bg-primary: #0b0f19;
    --bg-secondary: #161e2e;
    --bg-card: rgba(22, 30, 46, 0.6);
    --border-color: rgba(255, 255, 255, 0.08);
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --primary: #f97316;
    --primary-glow: rgba(249, 115, 22, 0.3);
    --success: #10b981;
    --danger: #ef4444;
    --danger-glow: rgba(239, 68, 68, 0.2);
    --warning: #f59e0b;
    --info: #06b6d4;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --glass-blur: blur(12px);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg-primary);
    background-image: 
        radial-gradient(at 0% 0%, rgba(249, 115, 22, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(245, 158, 11, 0.10) 0px, transparent 50%);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Scrollbar Style */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-sm);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* App Container */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 2rem 1.5rem;
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 3rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--info));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 1.2rem;
    box-shadow: 0 8px 16px var(--primary-glow);
}

.logo-text {
    font-weight: 700;
    font-size: 1.25rem;
    background: linear-gradient(to right, #fff, var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-item a {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 1rem 1.2rem;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: var(--transition);
}

.nav-item a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.05);
}

.nav-item.active a {
    color: #fff;
    background: var(--primary);
    box-shadow: 0 4px 15px var(--primary-glow);
}

.sidebar-footer {
    margin-top: auto;
    padding-top: 2rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
}

/* Main Content Area */
.main-content {
    margin-left: 280px;
    flex: 1;
    padding: 2rem 3rem;
    min-height: 100vh;
}

.page-section {
    display: none;
    animation: fadeIn 0.4s ease-out forwards;
}

.page-section.active {
    display: block;
}

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

/* Header & Page Title */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
}

.page-title h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.page-title p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Buttons */
.btn {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 8px !important;
    padding: 0.75rem 1.5rem !important;
    border-radius: var(--radius-md) !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    transition: var(--transition) !important;
    border: 1px solid transparent !important;
    font-size: 0.95rem !important;
    box-shadow: none !important;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #ea580c) !important;
    border: none !important;
    color: #fff !important;
    box-shadow: 0 4px 12px var(--primary-glow) !important;
}

.btn-primary:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.45) !important;
    filter: brightness(1.05) !important;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-main) !important;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1) !important;
    color: #fff !important;
    border-color: rgba(255, 255, 255, 0.2) !important;
}

.btn-secondary.active {
    background: var(--primary) !important;
    border-color: var(--primary) !important;
    color: #fff !important;
    box-shadow: 0 4px 12px var(--primary-glow) !important;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger), #dc2626) !important;
    border: none !important;
    color: #fff !important;
    box-shadow: 0 4px 12px var(--danger-glow) !important;
}

.btn-danger:hover {
    transform: translateY(-2px) !important;
    filter: brightness(1.05) !important;
}

.btn-sm {
    padding: 0.4rem 0.8rem !important;
    font-size: 0.85rem !important;
    border-radius: var(--radius-sm) !important;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    backdrop-filter: var(--glass-blur);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, 0.15);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
}

.stat-card.primary::before { background: var(--primary); }
.stat-card.success::before { background: var(--success); }
.stat-card.warning::before { background: var(--warning); }
.stat-card.danger::before { background: var(--danger); }

.stat-icon {
    width: 54px;
    height: 54px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.03);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.stat-card.primary .stat-icon { color: #818cf8; background: rgba(79, 70, 229, 0.1); }
.stat-card.success .stat-icon { color: #34d399; background: rgba(16, 185, 129, 0.1); }
.stat-card.warning .stat-icon { color: #fbbf24; background: rgba(245, 158, 11, 0.1); }
.stat-card.danger .stat-icon { color: #f87171; background: rgba(239, 68, 68, 0.1); }

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 700;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* General Layout Widgets */
/* Card overrides to integrate with dark glassmorphism */
.card.bg-glass {
    background: var(--bg-card) !important;
    backdrop-filter: var(--glass-blur) !important;
    -webkit-backdrop-filter: var(--glass-blur) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-lg) !important;
    overflow: hidden !important;
}

.card.bg-glass .card-body {
    padding: 1.75rem !important;
}

.card.bg-glass .card-header {
    padding: 1.75rem 1.75rem 0.5rem 1.75rem !important;
}

.card-title {
    font-size: 1.25rem !important;
    font-weight: 700 !important;
    background: linear-gradient(to right, #fff, var(--text-muted)) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
}

/* Calendar Month View styling */
.calendar-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.calendar-month-year {
    font-size: 1.25rem;
    font-weight: 600;
    min-width: 180px;
    text-align: center;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
}

.calendar-day-header {
    text-align: center;
    padding: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.85rem;
    border-bottom: 1px solid var(--border-color);
}

.calendar-cell {
    min-height: 100px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 4px;
    position: relative;
    transition: var(--transition);
}

.calendar-cell:hover {
    background: rgba(255, 255, 255, 0.05);
}

.calendar-cell.other-month {
    opacity: 0.3;
}

.calendar-cell.today {
    background: rgba(249, 115, 22, 0.08);
    border-color: var(--primary);
}

.calendar-cell.today .day-num {
    background: var(--primary);
    color: #fff;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.day-num {
    font-size: 0.9rem;
    font-weight: 500;
    align-self: flex-start;
    color: var(--text-main);
    margin-bottom: 4px;
}

/* Holiday items in calendar cell */
.calendar-holiday-tag {
    font-size: 0.75rem;
    padding: 3px 6px;
    border-radius: 4px;
    color: #fff;
    cursor: pointer;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: var(--transition);
}

.calendar-holiday-tag:hover {
    transform: scale(1.03);
    filter: brightness(1.15);
}

.calendar-holiday-tag.conflicting {
    border: 1px dashed var(--danger);
    box-shadow: 0 0 6px rgba(239, 68, 68, 0.4);
    animation: pulseGlow 2s infinite;
}

@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 6px rgba(239, 68, 68, 0.4); }
    50% { box-shadow: 0 0 12px rgba(239, 68, 68, 0.8); }
}

/* Timeline/Gantt View styling */
.timeline-container {
    overflow-x: auto;
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-top: 1rem;
}

.gantt-table {
    width: 100%;
    min-width: 900px;
    border-collapse: collapse;
}

.gantt-header-row th {
    background: var(--bg-secondary);
    border-bottom: 2px solid var(--border-color);
    padding: 0.75rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    position: sticky;
    top: 0;
}

.gantt-header-day {
    width: 32px;
    text-align: center;
    border-left: 1px solid var(--border-color);
}

.gantt-header-day.weekend {
    background: rgba(255, 255, 255, 0.03);
}

.gantt-row {
    border-bottom: 1px solid var(--border-color);
}

.gantt-employee-cell {
    padding: 1rem;
    font-weight: 600;
    font-size: 0.95rem;
    width: 200px;
    position: sticky;
    left: 0;
    background: var(--bg-secondary);
    border-right: 2px solid var(--border-color);
    z-index: 5;
}

.gantt-employee-role {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 400;
    margin-top: 2px;
}

.gantt-cells-container {
    position: relative;
    padding: 0;
    height: 60px;
}

.gantt-day-grid-cell {
    display: inline-block;
    width: 32px;
    height: 100%;
    border-left: 1px solid var(--border-color);
}

.gantt-day-grid-cell.weekend {
    background: rgba(255, 255, 255, 0.02);
}

.gantt-bar-segment {
    position: absolute;
    top: 15px;
    height: 30px;
    border-radius: var(--radius-sm);
    color: #fff;
    display: flex;
    align-items: center;
    padding: 0 10px;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    z-index: 2;
}

.gantt-bar-segment:hover {
    transform: translateY(-2px);
    filter: brightness(1.15);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
    z-index: 3;
}

.gantt-bar-segment.conflicting {
    border: 2px dashed #fff;
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.8);
    animation: flashBorder 1.5s infinite;
}

@keyframes flashBorder {
    0%, 100% { border-color: rgba(255, 255, 255, 0.5); }
    50% { border-color: #ef4444; }
}

/* Modals */
.custom-modal-content {
    background: rgba(22, 30, 46, 0.95) !important;
    backdrop-filter: var(--glass-blur) !important;
    -webkit-backdrop-filter: var(--glass-blur) !important;
    border: 1px solid rgba(249, 115, 22, 0.2) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5) !important;
    color: var(--text-main) !important;
}

.custom-modal-header {
    border-bottom: 1px solid var(--border-color) !important;
    padding: 1.25rem 1.5rem !important;
}

.custom-modal-body {
    background: transparent !important;
}

.modal-backdrop {
    background-color: rgba(0, 0, 0, 0.6) !important;
    backdrop-filter: blur(4px) !important;
    -webkit-backdrop-filter: blur(4px) !important;
}

.form-select {
    background-color: rgba(255, 255, 255, 0.03) !important;
    color: var(--text-main) !important;
    border: 1px solid var(--border-color) !important;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23f3f4f6' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e") !important;
    background-repeat: no-repeat !important;
    background-position: right 0.75rem center !important;
    background-size: 16px 12px !important;
}

.form-select:focus {
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 3px var(--primary-glow) !important;
    color: #fff !important;
}

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

::-webkit-calendar-picker-indicator {
    filter: invert(1);
}

/* Forms & Inputs */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

.form-control {
    width: 100% !important;
    padding: 0.75rem 1rem !important;
    border-radius: var(--radius-md) !important;
    background: rgba(255, 255, 255, 0.03) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-main) !important;
    transition: var(--transition) !important;
    font-size: 0.95rem !important;
}

.form-control:focus {
    outline: none !important;
    border-color: var(--primary) !important;
    background: rgba(255, 255, 255, 0.05) !important;
    box-shadow: 0 0 0 3px var(--primary-glow) !important;
    color: #fff !important;
}

.form-control option {
    background-color: var(--bg-secondary) !important;
    color: var(--text-main) !important;
}

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

.color-picker-wrapper {
    display: flex;
    gap: 8px;
    margin-top: 4px;
}

.color-option {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
}

.color-option:hover {
    transform: scale(1.1);
}

.color-option.selected {
    border-color: #fff;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

/* Conflict Banner/Validation in Form */
.conflict-warning-banner {
    display: none;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger);
    border-radius: var(--radius-md);
    padding: 1rem;
    margin-bottom: 1.5rem;
    align-items: flex-start;
    gap: 10px;
    color: #f87171;
    font-size: 0.85rem;
    line-height: 1.4;
}

.conflict-warning-banner.active {
    display: flex;
    animation: shake 0.4s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-4px); }
    75% { transform: translateX(4px); }
}

/* List Views (Employees and Rules) */
.list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.card-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: auto;
    min-height: 160px;
    backdrop-filter: var(--glass-blur);
    transition: var(--transition);
    position: relative;
}

.card-item:hover {
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.card-item-header {
    display: flex;
    align-items: center;
    gap: 12px;
}

.avatar-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    flex-shrink: 0;
}

.card-item-title {
    font-size: 1.1rem;
    font-weight: 600;
}

.card-item-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.card-item-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: auto;
}

/* Conflict Rule specific */
.rule-card {
    height: auto;
    min-height: 150px;
}

.rule-relationship {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 0.75rem;
    font-weight: 500;
    font-size: 0.95rem;
}

.rule-arrows {
    color: var(--danger);
    font-weight: bold;
}

.rule-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.4;
    margin-bottom: 1rem;
}

/* Mobile Header & Sidebar Offcanvas Drawer */
.mobile-header {
    background: var(--bg-secondary);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    z-index: 1000;
}

.mobile-header .logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary), var(--info));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 1rem;
    box-shadow: 0 4px 8px var(--primary-glow);
}

.mobile-header .logo-text {
    font-weight: 700;
    font-size: 1.1rem;
    background: linear-gradient(to right, #fff, var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.mobile-offcanvas {
    background: rgba(11, 15, 25, 0.98) !important;
    backdrop-filter: var(--glass-blur) !important;
    -webkit-backdrop-filter: var(--glass-blur) !important;
    border-right: 1px solid var(--border-color) !important;
    width: 280px !important;
}

.mobile-offcanvas .logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary), var(--info));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 1.1rem;
    box-shadow: 0 4px 8px var(--primary-glow);
}

@media (max-width: 991.98px) {
    .main-content {
        margin-left: 0 !important;
        margin-top: 56px !important;
        padding: 1.25rem 1rem 30px 1rem !important;
    }
}

/* Toast Notification */
.toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.toast {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary);
    border-radius: var(--radius-md);
    padding: 1rem 1.5rem;
    color: var(--text-main);
    font-weight: 500;
    font-size: 0.9rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    gap: 10px;
    transform: translateX(120%);
    animation: slideIn 0.3s ease-out forwards;
}

.toast.success { border-left-color: var(--success); }
.toast.danger { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }

@keyframes slideIn {
    to { transform: translateX(0); }
}

/* Quick styles for details pane */
.detail-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
}

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

.detail-label {
    color: var(--text-muted);
}

.detail-value {
    font-weight: 500;
}

/* Conflict list panel styling */
.conflict-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.conflict-item {
    background: rgba(239, 68, 68, 0.05);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    font-size: 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.conflict-item-title {
    color: #f87171;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}

.conflict-item-details {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* Drag and Drop styles */
.calendar-layout-wrapper {
    display: flex;
    gap: 1.5rem;
    margin-top: 1rem;
}

.calendar-drag-sidebar {
    width: 100%;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    height: fit-content;
}

.drag-instruction {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.drag-emp-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 0.5rem;
}

.drag-emp-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: grab;
    user-select: none;
    transition: var(--transition);
}

.drag-emp-item:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.15);
}

.drag-emp-item:active {
    cursor: grabbing;
}

.calendar-cell.drag-over {
    background: rgba(249, 115, 22, 0.15) !important;
    border-color: var(--primary) !important;
    box-shadow: 0 0 10px rgba(249, 115, 22, 0.4) inset !important;
    transform: scale(0.98);
}

/* ==========================================
   Responsive Viewport Styles (Mobile <= 768px)
   ========================================== */
@media (max-width: 768px) {
    .drag-emp-item {
        padding: 0.5rem 0.75rem !important;
        font-size: 0.8rem !important;
        border-radius: var(--radius-sm) !important;
        flex: 1 0 calc(50% - 4px); /* Stack nicely as 2 columns */
        justify-content: center !important;
    }

    /* Calendar Grid Sizing for Mobile Viewports */
    .calendar-grid {
        gap: 4px !important;
    }
    
    .calendar-day-header {
        padding: 0.5rem 0.25rem !important;
        font-size: 0.75rem !important;
    }
    
    .calendar-cell {
        min-height: 65px !important;
        padding: 4px 2px !important;
        border-radius: 4px !important;
    }
    
    .day-num {
        font-size: 0.8rem !important;
        margin-bottom: 2px !important;
    }
    
    .calendar-cell.today .day-num {
        width: 18px !important;
        height: 18px !important;
        font-size: 0.75rem !important;
    }
    
    .calendar-holiday-tag {
        font-size: 0.65rem !important;
        padding: 2px 4px !important;
        border-radius: 3px !important;
        height: 18px !important;
        gap: 2px !important;
    }
    
    .calendar-holiday-tag i {
        width: 10px !important;
        height: 10px !important;
    }

    /* Gantt chart scrollability and styling */
    .timeline-container {
        border-radius: var(--radius-md) !important;
        -webkit-overflow-scrolling: touch;
    }

    .gantt-employee-cell {
        width: 110px !important;
        font-size: 0.75rem !important;
        padding: 8px 4px !important;
    }
    
    .gantt-employee-role {
        font-size: 0.65rem !important;
    }
    
    .gantt-cells-container {
        height: 50px !important;
    }
    
    .gantt-bar-segment {
        top: 10px !important;
        height: 28px !important;
        font-size: 0.7rem !important;
        padding: 0 6px !important;
    }

    .calendar-layout-wrapper {
        flex-direction: column !important;
        gap: 1.25rem !important;
    }
    
    .calendar-drag-sidebar {
        width: 100% !important;
        padding: 1rem !important;
        border-radius: var(--radius-md) !important;
    }
    
    .drag-instruction {
        display: none !important; /* Hide to avoid mobile clutter */
    }
    
    .drag-emp-list {
        flex-direction: row !important;
        flex-wrap: wrap !important;
        gap: 8px !important;
    }

    /* Top-aligned Toasts for mobile */
    .toast-container {
        top: 1rem !important;
        bottom: auto !important;
        right: 1rem !important;
        left: 1rem !important;
    }
    
    .toast {
        transform: translateY(-120%);
        animation: slideInMobile 0.3s ease-out forwards;
        padding: 0.75rem 1rem !important;
        font-size: 0.85rem !important;
    }
    
    @keyframes slideInMobile {
        to { transform: translateY(0); }
    }
}