:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --bg: #f8fafc;
    --card-bg: #ffffff;
    --text: #1e293b;
    --text-light: #64748b;
    --border: #e2e8f0;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
}

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

body {
    font-family: 'Inter', system-ui, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: #fff;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.nav-links button {
    background: none;
    border: none;
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-light);
}

.nav-links button:hover {
    color: var(--primary);
}

main {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

h1 {
    margin-bottom: 1.5rem;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 600;
}

.header-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

/* Task Grid */
.task-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.task-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    transition: transform 0.2s;
}

.task-card:hover {
    transform: translateY(-2px);
}

.task-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.priority-badge {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 1rem;
    font-weight: 700;
}

.priority-Alta { background: #fee2e2; color: #991b1b; }
.priority-Media { background: #fef3c7; color: #92400e; }
.priority-Baja { background: #dcfce7; color: #166534; }

.task-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1.5rem;
    border-top: 1px solid var(--border);
    padding-top: 1rem;
}

.status-actions button {
    padding: 0.25rem 0.75rem;
    border-radius: 0.25rem;
    border: 1px solid var(--border);
    background: #fff;
    cursor: pointer;
    font-size: 0.875rem;
}

.status-actions button:hover {
    background: var(--bg);
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: #fff;
    padding: 2rem;
    border-radius: 1rem;
    width: 100%;
    max-width: 500px;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input, .form-group textarea, .form-group select {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border);
    border-radius: 0.4rem;
}

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

/* Metrics */
.charts-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.chart-card {
    background: #fff;
    padding: 1.5rem;
    border-radius: 1rem;
    border: 1px solid var(--border);
}

/* Admin */
.admin-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
}

.card {
    background: #fff;
    padding: 1.5rem;
    border-radius: 1rem;
    border: 1px solid var(--border);
}

#techList {
    list-style: none;
}

#techList li {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
}