:root[data-theme="light"] {
    --bg-body: #f8fafc;
    --bg-surface: #ffffff;
    --bg-hover: #f1f5f9;
    --border-color: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --primary-bg: #eef2ff;
    
    --danger-color: #ef4444;
    --success-text: #15803d;
    --success-bg: #dcfce7;
    --warning-text: #b45309;
    --warning-bg: #fef3c7;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    
    --input-bg: #ffffff;
}

:root[data-theme="dark"] {
    --bg-body: #0f172a;
    --bg-surface: #1e293b;
    --bg-hover: #334155;
    --border-color: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    
    --primary-color: #6366f1;
    --primary-hover: #818cf8;
    --primary-bg: rgba(99, 102, 241, 0.15);
    
    --danger-color: #f87171;
    --success-text: #4ade80;
    --success-bg: rgba(74, 222, 128, 0.15);
    --warning-text: #fbbf24;
    --warning-bg: rgba(251, 191, 36, 0.15);
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.5);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.5);
    
    --input-bg: #0f172a;
}

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

body {
    background-color: var(--bg-body);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.3s, color 0.3s;
}

/* Utilities */
.mb-24 { margin-bottom: 24px; }
.p-24 { padding: 24px; }
.text-sm { font-size: 0.85rem; }
.text-xs { font-size: 0.75rem; }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success-text); font-weight: bold; }
.text-primary { color: var(--primary-color); font-weight: bold; }
.font-medium { font-weight: 500; }
.hidden { display: none !important; }
.text-right { text-align: right; }

/* Layout */
.layout {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

.sidebar {
    width: 260px;
    background-color: var(--bg-surface);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.sidebar-header {
    height: 64px;
    display: flex;
    align-items: center;
    padding: 0 24px;
    border-bottom: 1px solid var(--border-color);
    gap: 12px;
}

.brand-icon { color: var(--primary-color); }
.brand-title { font-weight: 700; font-size: 1.1rem; }

.sidebar-nav {
    padding: 24px 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-section {
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 600;
    color: var(--text-muted);
    padding: 0 16px;
    margin-bottom: 8px;
    letter-spacing: 0.05em;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    text-decoration: none;
    color: var(--text-secondary);
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.2s;
}

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

.sidebar-footer {
    padding: 24px;
    border-top: 1px solid var(--border-color);
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.top-header {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    flex-shrink: 0;
}

.page-title { font-size: 1.5rem; font-weight: 600; }
.page-subtitle { color: var(--text-secondary); font-size: 0.9rem; margin-top: 4px; }

.content-wrapper { padding: 0 32px 32px; flex: 1; }

.view-section {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Cards */
.card {
    background-color: var(--bg-surface);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

/* Dashboard Metrics */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.metric-title {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 8px;
}
.metric-value {
    font-size: 2rem;
}

/* Kanban */
.kanban-board {
    display: flex;
    gap: 16px;
    height: calc(100vh - 140px);
    overflow-x: auto;
    padding-bottom: 16px;
}
.kanban-column {
    flex: 1;
    min-width: 250px;
    background-color: var(--bg-hover);
    border-radius: 8px;
    padding: 16px;
    display: flex;
    flex-direction: column;
}
.column-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 16px;
}
.kanban-cards {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
    overflow-y: auto;
}
.k-card {
    background-color: var(--bg-surface);
    padding: 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: border-color 0.2s;
}
.k-card:hover {
    border-color: var(--primary-color);
}
.k-card-title {
    font-weight: 500;
    font-size: 0.95rem;
    margin-bottom: 8px;
}
.k-card-date {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
}
.btn-primary { background-color: var(--primary-color); color: white; }
.btn-primary:hover { background-color: var(--primary-hover); }
.btn-secondary { background-color: var(--bg-surface); color: var(--text-secondary); border-color: var(--border-color); }
.btn-secondary:hover { background-color: var(--bg-hover); color: var(--text-primary); }

.icon-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 6px;
    border-radius: 6px;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.icon-btn:hover { background-color: var(--bg-hover); color: var(--text-primary); }

/* Table */
.table-responsive { overflow-x: auto; width: 100%; }
table { width: 100%; border-collapse: collapse; text-align: left; }
th {
    background-color: var(--bg-hover);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.75rem;
    text-transform: uppercase;
    padding: 12px 24px;
    border-bottom: 1px solid var(--border-color);
}
td {
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
}
tr:last-child td { border-bottom: none; }
.actions-cell { display: flex; gap: 4px; justify-content: flex-end; }
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-success { background-color: var(--success-bg); color: var(--success-text); }
.badge-warning { background-color: var(--warning-bg); color: var(--warning-text); }
.badge-info { background-color: var(--primary-bg); color: var(--primary-color); }

/* Modals */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(2px);
    display: flex; align-items: center; justify-content: center;
    z-index: 50; transition: opacity 0.2s ease;
}
.modal-overlay.hidden { opacity: 0; pointer-events: none; }
.modal-content {
    width: 100%; max-width: 600px;
    max-height: 90vh; display: flex; flex-direction: column;
}
.modal-lg { max-width: 700px; }
.modal-header { padding: 20px 24px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
.modal-body { padding: 24px; overflow-y: auto; flex: 1; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border-color); background-color: var(--bg-hover); display: flex; justify-content: flex-end; gap: 12px; border-bottom-left-radius: 12px; border-bottom-right-radius: 12px; }

/* Tabs */
.modal-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    padding: 0 24px;
    background-color: var(--bg-surface);
}
.tab-btn {
    background: none; border: none;
    padding: 12px 16px;
    font-size: 0.9rem; font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: all 0.2s;
}
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}
.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeIn 0.3s ease; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-row { display: flex; gap: 16px; }
.form-row .form-group { flex: 1; }
label { display: block; font-size: 0.85rem; font-weight: 500; color: var(--text-secondary); margin-bottom: 6px; }
input[type="text"], input[type="url"], input[type="date"], input[type="number"], select, textarea {
    width: 100%; padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px; font-size: 0.95rem;
    color: var(--text-primary); background-color: var(--input-bg);
    outline: none; transition: border-color 0.2s;
}
input:focus, select:focus, textarea:focus { border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1); }
textarea { resize: vertical; }

/* Checklist */
.checklist-container { display: flex; flex-direction: column; gap: 12px; }
.checklist-item {
    display: flex; align-items: center; gap: 10px;
    cursor: pointer; padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 8px; transition: background-color 0.2s;
}
.checklist-item:hover { background-color: var(--bg-hover); }
.checklist-item span { font-size: 0.95rem; color: var(--text-primary); }

/* Toggle */
.toggle-row { display: flex; justify-content: space-between; align-items: center; }
.toggle-label { font-size: 0.95rem; font-weight: 600; color: var(--text-primary); }
.toggle-switch { position: relative; display: inline-block; width: 44px; height: 24px; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: #cbd5e1; transition: .3s; border-radius: 24px; }
.toggle-slider:before { position: absolute; content: ""; height: 18px; width: 18px; left: 3px; bottom: 3px; background-color: white; transition: .3s; border-radius: 50%; box-shadow: var(--shadow-sm); }
input:checked + .toggle-slider { background-color: var(--primary-color); }
input:checked + .toggle-slider:before { transform: translateX(20px); }

/* Revenue Input Specifics */
.revenue-container { margin-top: 20px; padding: 16px; background-color: var(--bg-hover); border: 1px solid var(--border-color); border-radius: 8px; }
.input-with-icon { position: relative; display: flex; align-items: center; }
.input-with-icon .currency-symbol { position: absolute; left: 12px; color: var(--success-text); font-weight: 600; }
.revenue-input input { padding-left: 28px; font-weight: 600; color: var(--success-text); }
/* Add this to the very end of style.css */

/* Toasts */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 9999;
    pointer-events: none;
}

.toast {
    background-color: var(--bg-surface);
    color: var(--text-primary);
    border-left: 4px solid var(--primary-color);
    padding: 16px 24px;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    font-weight: 500;
    pointer-events: auto;
    animation: slideInRight 0.3s ease forwards;
    min-width: 300px;
}

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

.toast.fade-out {
    animation: fadeOutRight 0.3s ease forwards;
}

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

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

/* Loading state for buttons */
.btn.loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

.btn.loading::after {
    content: "";
    position: absolute;
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-right-color: currentColor;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.btn-primary.loading::after {
    border-top-color: white;
    border-right-color: white;
}

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