:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --border-color: #e5e7eb;
    --bg-phase: #f3f4f6;
}

.dark {
    --bg-primary: #1f2937;
    --bg-secondary: #111827;
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --border-color: #4b5563;
    --bg-phase: #1a2433;
}

body {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    transition: background-color 0.3s, color 0.3s;
}

.form-input:focus {
    outline: none;
    border-color: #4F46E5;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.item-row {
    display: grid;
    grid-template-columns: 1fr 1fr 40px;
    gap: 1rem;
    align-items: center;
    transition: background-color 0.3s;
}

.checklist-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    align-items: center;
    transition: background-color 0.3s;
}

#shareModal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--bg-primary);
    margin: 15% auto;
    padding: 24px;
    width: 90%;
    max-width: 500px;
    border-radius: 0.75rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

/* Dark mode styles */
.dark .form-input {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.dark input::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

.dark .bg-white {
    background-color: var(--bg-primary);
}

.dark .checklist-item.bg-white {
    background-color: var(--bg-primary) !important;
}

.dark .text-gray-700,
.dark .text-gray-900 {
    color: var(--text-primary);
}

.dark .text-gray-600 {
    color: var(--text-secondary);
}

.dark .text-gray-500 {
    color: var(--text-secondary);
}

.dark .border {
    border-color: var(--border-color);
}

.dark .border-t {
    border-color: var(--border-color);
}

/* Phase container styles */
.phase-container {
    background-color: var(--bg-phase) !important;
    transition: background-color 0.3s;
}

/* Item specific styles */
.dark .item-row.bg-white {
    background-color: var(--bg-primary) !important;
}